From 189a977e4dc011b05aa1fee044d1a98cf904341b Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 4 Jun 2025 10:48:35 -0700
Subject: [PATCH 001/179] perf bpf-filter: Improve error messages

The BPF filter needs libbpf/BPF-skeleton support and root privilege.
Add error messages to help users understand the problem easily.

When it's not build with BPF support (make BUILD_BPF_SKEL=0).

  $ sudo perf record -e cycles --filter "pid != 0" true
  Error: BPF filter is requested but perf is not built with BPF.
  	Please make sure to build with libbpf and BPF skeleton.

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

          --filter <filter>
                            event filter

When it supports BPF but runs without root or CAP_BPF.  Note that it
also checks pinned BPF filters.

  $ perf record -e cycles --filter "pid != 0" -o /dev/null true
  Error: BPF filter only works for users with the CAP_BPF capability!
  	Please run 'perf record --setup-filter pin' as root first.

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

          --filter <filter>
                            event filter

Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174835.1852481-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/bpf-filter.c | 28 ++++++++++++++++++++++++++++
 tools/perf/util/bpf-filter.h |  3 +++
 tools/perf/util/cap.c        |  1 -
 tools/perf/util/cap.h        |  5 +++++
 4 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/bpf-filter.c b/tools/perf/util/bpf-filter.c
index a4fdf6911ec1..92e2f054b45e 100644
--- a/tools/perf/util/bpf-filter.c
+++ b/tools/perf/util/bpf-filter.c
@@ -52,6 +52,7 @@
 #include <internal/xyarray.h>
 #include <perf/threadmap.h>
 
+#include "util/cap.h"
 #include "util/debug.h"
 #include "util/evsel.h"
 #include "util/target.h"
@@ -618,11 +619,38 @@ struct perf_bpf_filter_expr *perf_bpf_filter_expr__new(enum perf_bpf_filter_term
 	return expr;
 }
 
+static bool check_bpf_filter_capable(void)
+{
+	bool used_root;
+
+	if (perf_cap__capable(CAP_BPF, &used_root))
+		return true;
+
+	if (!used_root) {
+		/* Check if root already pinned the filter programs and maps */
+		int fd = get_pinned_fd("filters");
+
+		if (fd >= 0) {
+			close(fd);
+			return true;
+		}
+	}
+
+	pr_err("Error: BPF filter only works for %s!\n"
+	       "\tPlease run 'perf record --setup-filter pin' as root first.\n",
+	       used_root ? "root" : "users with the CAP_BPF capability");
+
+	return false;
+}
+
 int perf_bpf_filter__parse(struct list_head *expr_head, const char *str)
 {
 	YY_BUFFER_STATE buffer;
 	int ret;
 
+	if (!check_bpf_filter_capable())
+		return -EPERM;
+
 	buffer = perf_bpf_filter__scan_string(str);
 
 	ret = perf_bpf_filter_parse(expr_head);
diff --git a/tools/perf/util/bpf-filter.h b/tools/perf/util/bpf-filter.h
index 916ed7770b73..122477f2de44 100644
--- a/tools/perf/util/bpf-filter.h
+++ b/tools/perf/util/bpf-filter.h
@@ -5,6 +5,7 @@
 #include <linux/list.h>
 
 #include "bpf_skel/sample-filter.h"
+#include "util/debug.h"
 
 struct perf_bpf_filter_expr {
 	struct list_head list;
@@ -38,6 +39,8 @@ int perf_bpf_filter__unpin(void);
 static inline int perf_bpf_filter__parse(struct list_head *expr_head __maybe_unused,
 					 const char *str __maybe_unused)
 {
+	pr_err("Error: BPF filter is requested but perf is not built with BPF.\n"
+		"\tPlease make sure to build with libbpf and BPF skeleton.\n");
 	return -EOPNOTSUPP;
 }
 static inline int perf_bpf_filter__prepare(struct evsel *evsel __maybe_unused,
diff --git a/tools/perf/util/cap.c b/tools/perf/util/cap.c
index 69d9a2bcd40b..24a0ea7e6d97 100644
--- a/tools/perf/util/cap.c
+++ b/tools/perf/util/cap.c
@@ -7,7 +7,6 @@
 #include "debug.h"
 #include <errno.h>
 #include <string.h>
-#include <linux/capability.h>
 #include <sys/syscall.h>
 #include <unistd.h>
 
diff --git a/tools/perf/util/cap.h b/tools/perf/util/cap.h
index 0c6a1ff55f07..c1b8ac033ccc 100644
--- a/tools/perf/util/cap.h
+++ b/tools/perf/util/cap.h
@@ -3,6 +3,7 @@
 #define __PERF_CAP_H
 
 #include <stdbool.h>
+#include <linux/capability.h>
 
 /* For older systems */
 #ifndef CAP_SYSLOG
@@ -13,6 +14,10 @@
 #define CAP_PERFMON	38
 #endif
 
+#ifndef CAP_BPF
+#define CAP_BPF		39
+#endif
+
 /* Query if a capability is supported, used_root is set if the fallback root check was used. */
 bool perf_cap__capable(int cap, bool *used_root);
 

From 8b99e2f7a95297da80b0b7167a8c8327b65c019e Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:35 -0700
Subject: [PATCH 002/179] perf parse-events filter: Use evsel__find_pmu

Rather than manually scanning PMUs, use evsel__find_pmu that can use
the PMU set during event parsing.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 2380de56a207..d96adf23dc94 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2564,9 +2564,8 @@ foreach_evsel_in_last_glob(struct evlist *evlist,
 static int set_filter(struct evsel *evsel, const void *arg)
 {
 	const char *str = arg;
-	bool found = false;
 	int nr_addr_filters = 0;
-	struct perf_pmu *pmu = NULL;
+	struct perf_pmu *pmu;
 
 	if (evsel == NULL) {
 		fprintf(stderr,
@@ -2584,16 +2583,11 @@ static int set_filter(struct evsel *evsel, const void *arg)
 		return 0;
 	}
 
-	while ((pmu = perf_pmus__scan(pmu)) != NULL)
-		if (pmu->type == evsel->core.attr.type) {
-			found = true;
-			break;
-		}
-
-	if (found)
+	pmu = evsel__find_pmu(evsel);
+	if (pmu) {
 		perf_pmu__scan_file(pmu, "nr_addr_filters",
 				    "%d", &nr_addr_filters);
-
+	}
 	if (!nr_addr_filters)
 		return perf_bpf_filter__parse(&evsel->bpf_filters, str);
 

From 5ddf4c3a17dc499fcbaf35692bc894340062dee8 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:36 -0700
Subject: [PATCH 003/179] perf target: Separate parse_uid into its own function

Allow parse_uid to be called without a struct target. Rather than have
two errors, remove TARGET_ERRNO__USER_NOT_FOUND and use
TARGET_ERRNO__INVALID_UID as the handling is identical.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/target.c | 22 ++++++++++++----------
 tools/perf/util/target.h |  3 ++-
 2 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index 0f383418e3df..f3ad59ccfa99 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -94,15 +94,13 @@ enum target_errno target__validate(struct target *target)
 	return ret;
 }
 
-enum target_errno target__parse_uid(struct target *target)
+uid_t parse_uid(const char *str)
 {
 	struct passwd pwd, *result;
 	char buf[1024];
-	const char *str = target->uid_str;
 
-	target->uid = UINT_MAX;
 	if (str == NULL)
-		return TARGET_ERRNO__SUCCESS;
+		return UINT_MAX;
 
 	/* Try user name first */
 	getpwnam_r(str, &pwd, buf, sizeof(buf), &result);
@@ -115,16 +113,22 @@ enum target_errno target__parse_uid(struct target *target)
 		int uid = strtol(str, &endptr, 10);
 
 		if (*endptr != '\0')
-			return TARGET_ERRNO__INVALID_UID;
+			return UINT_MAX;
 
 		getpwuid_r(uid, &pwd, buf, sizeof(buf), &result);
 
 		if (result == NULL)
-			return TARGET_ERRNO__USER_NOT_FOUND;
+			return UINT_MAX;
 	}
 
-	target->uid = result->pw_uid;
-	return TARGET_ERRNO__SUCCESS;
+	return result->pw_uid;
+}
+
+enum target_errno target__parse_uid(struct target *target)
+{
+	target->uid = parse_uid(target->uid_str);
+
+	return target->uid != UINT_MAX ? TARGET_ERRNO__SUCCESS : TARGET_ERRNO__INVALID_UID;
 }
 
 /*
@@ -142,7 +146,6 @@ static const char *target__error_str[] = {
 	"BPF switch overriding UID",
 	"BPF switch overriding THREAD",
 	"Invalid User: %s",
-	"Problems obtaining information for user %s",
 };
 
 int target__strerror(struct target *target, int errnum,
@@ -171,7 +174,6 @@ int target__strerror(struct target *target, int errnum,
 		break;
 
 	case TARGET_ERRNO__INVALID_UID:
-	case TARGET_ERRNO__USER_NOT_FOUND:
 		snprintf(buf, buflen, msg, target->uid_str);
 		break;
 
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index 2ee2cc30340f..e082bda990fb 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -48,12 +48,13 @@ enum target_errno {
 
 	/* for target__parse_uid() */
 	TARGET_ERRNO__INVALID_UID,
-	TARGET_ERRNO__USER_NOT_FOUND,
 
 	__TARGET_ERRNO__END,
 };
 
 enum target_errno target__validate(struct target *target);
+
+uid_t parse_uid(const char *str);
 enum target_errno target__parse_uid(struct target *target);
 
 int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);

From 466db4275edd35b7a9af7c82575bcb3289f2c9c0 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:37 -0700
Subject: [PATCH 004/179] perf parse-events: Add parse_uid_filter helper

Add parse_uid_filter filter as a helper to parse_filter, that
constructs a uid filter string. As uid filters don't work with
tracepoint filters, add a is_possible_tp_filter function so the
tracepoint filter isn't attempted for tracepoint evsels.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 33 ++++++++++++++++++++++++++++++++-
 tools/perf/util/parse-events.h |  2 ++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d96adf23dc94..7f34e602fc08 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -25,6 +25,7 @@
 #include "pmu.h"
 #include "pmus.h"
 #include "asm/bug.h"
+#include "ui/ui.h"
 #include "util/parse-branch-options.h"
 #include "util/evsel_config.h"
 #include "util/event.h"
@@ -2561,6 +2562,12 @@ foreach_evsel_in_last_glob(struct evlist *evlist,
 	return 0;
 }
 
+/* Will a tracepoint filter work for str or should a BPF filter be used? */
+static bool is_possible_tp_filter(const char *str)
+{
+	return strstr(str, "uid") == NULL;
+}
+
 static int set_filter(struct evsel *evsel, const void *arg)
 {
 	const char *str = arg;
@@ -2573,7 +2580,7 @@ static int set_filter(struct evsel *evsel, const void *arg)
 		return -1;
 	}
 
-	if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
+	if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT && is_possible_tp_filter(str)) {
 		if (evsel__append_tp_filter(evsel, str) < 0) {
 			fprintf(stderr,
 				"not enough memory to hold filter string\n");
@@ -2609,6 +2616,30 @@ int parse_filter(const struct option *opt, const char *str,
 					  (const void *)str);
 }
 
+int parse_uid_filter(struct evlist *evlist, uid_t uid)
+{
+	struct option opt = {
+		.value = &evlist,
+	};
+	char buf[128];
+	int ret;
+
+	snprintf(buf, sizeof(buf), "uid == %d", uid);
+	ret = parse_filter(&opt, buf, /*unset=*/0);
+	if (ret) {
+		if (use_browser >= 1) {
+			/*
+			 * Use ui__warning so a pop up appears above the
+			 * underlying BPF error message.
+			 */
+			ui__warning("Failed to add UID filtering that uses BPF filtering.\n");
+		} else {
+			fprintf(stderr, "Failed to add UID filtering that uses BPF filtering.\n");
+		}
+	}
+	return ret;
+}
+
 static int add_exclude_perf_filter(struct evsel *evsel,
 				   const void *arg __maybe_unused)
 {
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index ab242f671031..1c20ed0879aa 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -11,6 +11,7 @@
 #include <linux/perf_event.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/types.h>
 
 struct evsel;
 struct evlist;
@@ -45,6 +46,7 @@ static inline int parse_events(struct evlist *evlist, const char *str,
 int parse_event(struct evlist *evlist, const char *str);
 
 int parse_filter(const struct option *opt, const char *str, int unset);
+int parse_uid_filter(struct evlist *evlist, uid_t uid);
 int exclude_perf(const struct option *opt, const char *arg, int unset);
 
 enum parse_events__term_val_type {

From 1151208e702267ad1ce2f24aa9d21deb47fa17f9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:38 -0700
Subject: [PATCH 005/179] perf record: Switch user option to use BPF filter

Finding user processes by scanning /proc is inherently racy and
results in perf_event_open failures. Use a BPF filter to drop samples
where the uid doesn't match. Ensure adding the BPF filter forces
system-wide.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-record.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8059bce85a51..0b566f300569 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -175,6 +175,7 @@ struct record {
 	bool			timestamp_boundary;
 	bool			off_cpu;
 	const char		*filter_action;
+	const char		*uid_str;
 	struct switch_output	switch_output;
 	unsigned long long	samples;
 	unsigned long		output_max_size;	/* = 0: unlimited */
@@ -3513,8 +3514,7 @@ static struct option __record_options[] = {
 		     "or ranges of time to enable events e.g. '-D 10-20,30-40'",
 		     record__parse_event_enable_time),
 	OPT_BOOLEAN(0, "kcore", &record.opts.kcore, "copy /proc/kcore"),
-	OPT_STRING('u', "uid", &record.opts.target.uid_str, "user",
-		   "user to profile"),
+	OPT_STRING('u', "uid", &record.uid_str, "user", "user to profile"),
 
 	OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack,
 		     "branch any", "sample any taken branches",
@@ -4256,19 +4256,24 @@ int cmd_record(int argc, const char **argv)
 		ui__warning("%s\n", errbuf);
 	}
 
-	err = target__parse_uid(&rec->opts.target);
-	if (err) {
-		int saved_errno = errno;
+	if (rec->uid_str) {
+		uid_t uid = parse_uid(rec->uid_str);
 
-		target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
-		ui__error("%s", errbuf);
+		if (uid == UINT_MAX) {
+			ui__error("Invalid User: %s", rec->uid_str);
+			err = -EINVAL;
+			goto out;
+		}
+		err = parse_uid_filter(rec->evlist, uid);
+		if (err)
+			goto out;
 
-		err = -saved_errno;
-		goto out;
+		/* User ID filtering implies system wide. */
+		rec->opts.target.system_wide = true;
 	}
 
-	/* Enable ignoring missing threads when -u/-p option is defined. */
-	rec->opts.ignore_missing_thread = rec->opts.target.uid != UINT_MAX || rec->opts.target.pid;
+	/* Enable ignoring missing threads when -p option is defined. */
+	rec->opts.ignore_missing_thread = rec->opts.target.pid;
 
 	evlist__warn_user_requested_cpus(rec->evlist, rec->opts.target.cpu_list);
 

From c54e2f82721aadd59d2a354ae2b5cc32d32047d9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:39 -0700
Subject: [PATCH 006/179] perf tests record: Add basic uid filtering test

Based on the system-wide test with changes around how failure is
handled as BPF permissions are a bigger issue than perf event
paranoia.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/record.sh | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 587f62e34414..2022a4f739be 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -231,6 +231,31 @@ test_cgroup() {
   echo "Cgroup sampling test [Success]"
 }
 
+test_uid() {
+  echo "Uid sampling test"
+  if ! perf record -aB --synth=no --uid "$(id -u)" -o "${perfdata}" ${testprog} \
+    > "${script_output}" 2>&1
+  then
+    if grep -q "libbpf.*EPERM" "${script_output}"
+    then
+      echo "Uid sampling [Skipped permissions]"
+      return
+    else
+      echo "Uid sampling [Failed to record]"
+      err=1
+      # cat "${script_output}"
+      return
+    fi
+  fi
+  if ! perf report -i "${perfdata}" -q | grep -q "${testsym}"
+  then
+    echo "Uid sampling [Failed missing output]"
+    err=1
+    return
+  fi
+  echo "Uid sampling test [Success]"
+}
+
 test_leader_sampling() {
   echo "Basic leader sampling test"
   if ! perf record -o "${perfdata}" -e "{cycles,cycles}:Su" -- \
@@ -345,6 +370,7 @@ test_system_wide
 test_workload
 test_branch_counter
 test_cgroup
+test_uid
 test_leader_sampling
 test_topdown_leader_sampling
 test_precise_max

From 38f83cc9ab8f74732de66044d1a126ca46347eea Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:40 -0700
Subject: [PATCH 007/179] perf top: Switch user option to use BPF filter

Finding user processes by scanning /proc is inherently racy and
results in perf_event_open failures. Use a BPF filter to drop samples
where the uid doesn't match.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-top.c | 22 ++++++++++++----------
 tools/perf/util/top.c    |  4 ++--
 tools/perf/util/top.h    |  1 +
 3 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 7b6cde87d2af..051ded5ba9ba 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -643,7 +643,7 @@ static void *display_thread_tui(void *arg)
 	 */
 	evlist__for_each_entry(top->evlist, pos) {
 		struct hists *hists = evsel__hists(pos);
-		hists->uid_filter_str = top->record_opts.target.uid_str;
+		hists->uid_filter_str = top->uid_str;
 	}
 
 	ret = evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent,
@@ -1571,7 +1571,7 @@ int cmd_top(int argc, const char **argv)
 		    "Add prefix to source file path names in programs (with --prefix-strip)"),
 	OPT_STRING(0, "prefix-strip", &annotate_opts.prefix_strip, "N",
 		    "Strip first N entries of source file path name in programs (with --prefix)"),
-	OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
+	OPT_STRING('u', "uid", &top.uid_str, "user", "user to profile"),
 	OPT_CALLBACK(0, "percent-limit", &top, "percent",
 		     "Don't show entries under that percent", parse_percent_limit),
 	OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
@@ -1762,15 +1762,17 @@ int cmd_top(int argc, const char **argv)
 		ui__warning("%s\n", errbuf);
 	}
 
-	status = target__parse_uid(target);
-	if (status) {
-		int saved_errno = errno;
+	if (top.uid_str) {
+		uid_t uid = parse_uid(top.uid_str);
 
-		target__strerror(target, status, errbuf, BUFSIZ);
-		ui__error("%s\n", errbuf);
-
-		status = -saved_errno;
-		goto out_delete_evlist;
+		if (uid == UINT_MAX) {
+			ui__error("Invalid User: %s", top.uid_str);
+			status = -EINVAL;
+			goto out_delete_evlist;
+		}
+		status = parse_uid_filter(top.evlist, uid);
+		if (status)
+			goto out_delete_evlist;
 	}
 
 	if (target__none(target))
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index 4db3d1bd686c..b06e10a116bb 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -88,9 +88,9 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
 	else if (target->tid)
 		ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s",
 				target->tid);
-	else if (target->uid_str != NULL)
+	else if (top->uid_str != NULL)
 		ret += SNPRINTF(bf + ret, size - ret, " (uid: %s",
-				target->uid_str);
+				top->uid_str);
 	else
 		ret += SNPRINTF(bf + ret, size - ret, " (all");
 
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index 4c5588dbb131..04ff926846be 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -48,6 +48,7 @@ struct perf_top {
 	const char	   *sym_filter;
 	float		   min_percent;
 	unsigned int	   nr_threads_synthesize;
+	const char	   *uid_str;
 
 	struct {
 		struct ordered_events	*in;

From bf1976dd28b4ec611d4f0bf5b0de40b1dd21b253 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:41 -0700
Subject: [PATCH 008/179] perf trace: Switch user option to use BPF filter

Finding user processes by scanning /proc is inherently racy and
results in perf_event_open failures. Use a BPF filter to drop samples
where the uid doesn't match. Ensure adding the BPF filter forces
system-wide.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-trace.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2ab1b8e05ad3..4bb062b96f51 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -236,6 +236,7 @@ struct trace {
 		struct ordered_events	data;
 		u64			last;
 	} oe;
+	const char		*uid_str;
 };
 
 static void trace__load_vmlinux_btf(struct trace *trace __maybe_unused)
@@ -4412,8 +4413,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 		evlist__add(evlist, pgfault_min);
 	}
 
-	/* Enable ignoring missing threads when -u/-p option is defined. */
-	trace->opts.ignore_missing_thread = trace->opts.target.uid != UINT_MAX || trace->opts.target.pid;
+	/* Enable ignoring missing threads when -p option is defined. */
+	trace->opts.ignore_missing_thread = trace->opts.target.pid;
 
 	if (trace->sched &&
 	    evlist__add_newtp(evlist, "sched", "sched_stat_runtime", trace__sched_stat_runtime))
@@ -5445,8 +5446,7 @@ int cmd_trace(int argc, const char **argv)
 		    "child tasks do not inherit counters"),
 	OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
 		     "number of mmap data pages", evlist__parse_mmap_pages),
-	OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
-		   "user to profile"),
+	OPT_STRING('u', "uid", &trace.uid_str, "user", "user to profile"),
 	OPT_CALLBACK(0, "duration", &trace, "float",
 		     "show only events with duration > N.M ms",
 		     trace__set_duration),
@@ -5804,11 +5804,19 @@ int cmd_trace(int argc, const char **argv)
 		goto out_close;
 	}
 
-	err = target__parse_uid(&trace.opts.target);
-	if (err) {
-		target__strerror(&trace.opts.target, err, bf, sizeof(bf));
-		fprintf(trace.output, "%s", bf);
-		goto out_close;
+	if (trace.uid_str) {
+		uid_t uid = parse_uid(trace.uid_str);
+
+		if (uid == UINT_MAX) {
+			ui__error("Invalid User: %s", trace.uid_str);
+			err = -EINVAL;
+			goto out_close;
+		}
+		err = parse_uid_filter(trace.evlist, uid);
+		if (err)
+			goto out_close;
+
+		trace.opts.target.system_wide = true;
 	}
 
 	if (!argc && target__none(&trace.opts.target))

From 278538ddf1af9f7a7fc0a983a23771083feda7f9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:42 -0700
Subject: [PATCH 009/179] perf bench evlist-open-close: Switch user option to
 use BPF filter

Finding user processes by scanning /proc is inherently racy and
results in perf_event_open failures. Use a BPF filter to drop samples
where the uid doesn't match.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/bench/evlist-open-close.c | 36 ++++++++++++++++------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/tools/perf/bench/evlist-open-close.c b/tools/perf/bench/evlist-open-close.c
index 79cedcf94a39..bfaf50e4e519 100644
--- a/tools/perf/bench/evlist-open-close.c
+++ b/tools/perf/bench/evlist-open-close.c
@@ -57,7 +57,7 @@ static int evlist__count_evsel_fds(struct evlist *evlist)
 	return cnt;
 }
 
-static struct evlist *bench__create_evlist(char *evstr)
+static struct evlist *bench__create_evlist(char *evstr, const char *uid_str)
 {
 	struct parse_events_error err;
 	struct evlist *evlist = evlist__new();
@@ -78,6 +78,18 @@ static struct evlist *bench__create_evlist(char *evstr)
 		goto out_delete_evlist;
 	}
 	parse_events_error__exit(&err);
+	if (uid_str) {
+		uid_t uid = parse_uid(uid_str);
+
+		if (uid == UINT_MAX) {
+			pr_err("Invalid User: %s", uid_str);
+			ret = -EINVAL;
+			goto out_delete_evlist;
+		}
+		ret = parse_uid_filter(evlist, uid);
+		if (ret)
+			goto out_delete_evlist;
+	}
 	ret = evlist__create_maps(evlist, &opts.target);
 	if (ret < 0) {
 		pr_err("Not enough memory to create thread/cpu maps\n");
@@ -117,10 +129,10 @@ static int bench__do_evlist_open_close(struct evlist *evlist)
 	return 0;
 }
 
-static int bench_evlist_open_close__run(char *evstr)
+static int bench_evlist_open_close__run(char *evstr, const char *uid_str)
 {
 	// used to print statistics only
-	struct evlist *evlist = bench__create_evlist(evstr);
+	struct evlist *evlist = bench__create_evlist(evstr, uid_str);
 	double time_average, time_stddev;
 	struct timeval start, end, diff;
 	struct stats time_stats;
@@ -142,7 +154,7 @@ static int bench_evlist_open_close__run(char *evstr)
 
 	for (i = 0; i < iterations; i++) {
 		pr_debug("Started iteration %d\n", i);
-		evlist = bench__create_evlist(evstr);
+		evlist = bench__create_evlist(evstr, uid_str);
 		if (!evlist)
 			return -ENOMEM;
 
@@ -206,6 +218,7 @@ static char *bench__repeat_event_string(const char *evstr, int n)
 
 int bench_evlist_open_close(int argc, const char **argv)
 {
+	const char *uid_str = NULL;
 	const struct option options[] = {
 		OPT_STRING('e', "event", &event_string, "event",
 			   "event selector. use 'perf list' to list available events"),
@@ -221,7 +234,7 @@ int bench_evlist_open_close(int argc, const char **argv)
 			   "record events on existing process id"),
 		OPT_STRING('t', "tid", &opts.target.tid, "tid",
 			   "record events on existing thread id"),
-		OPT_STRING('u', "uid", &opts.target.uid_str, "user", "user to profile"),
+		OPT_STRING('u', "uid", &uid_str, "user", "user to profile"),
 		OPT_BOOLEAN(0, "per-thread", &opts.target.per_thread, "use per-thread mmaps"),
 		OPT_END()
 	};
@@ -245,15 +258,8 @@ int bench_evlist_open_close(int argc, const char **argv)
 		goto out;
 	}
 
-	err = target__parse_uid(&opts.target);
-	if (err) {
-		target__strerror(&opts.target, err, errbuf, sizeof(errbuf));
-		pr_err("%s", errbuf);
-		goto out;
-	}
-
-	/* Enable ignoring missing threads when -u/-p option is defined. */
-	opts.ignore_missing_thread = opts.target.uid != UINT_MAX || opts.target.pid;
+	/* Enable ignoring missing threads when -p option is defined. */
+	opts.ignore_missing_thread = opts.target.pid;
 
 	evstr = bench__repeat_event_string(event_string, nr_events);
 	if (!evstr) {
@@ -261,7 +267,7 @@ int bench_evlist_open_close(int argc, const char **argv)
 		goto out;
 	}
 
-	err = bench_evlist_open_close__run(evstr);
+	err = bench_evlist_open_close__run(evstr, uid_str);
 
 	free(evstr);
 out:

From b4c658d4d63d6149f4ba57c9c5c84b8a61aafa6f Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:43 -0700
Subject: [PATCH 010/179] perf target: Remove uid from target

Gathering threads with a uid by scanning /proc is inherently racy
leading to perf_event_open failures that quit perf. All users of the
functionality now use BPF filters, so remove uid and uid_str from
target.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-ftrace.c                 |  1 -
 tools/perf/builtin-kvm.c                    |  2 -
 tools/perf/builtin-stat.c                   |  4 +-
 tools/perf/builtin-trace.c                  |  1 -
 tools/perf/tests/backward-ring-buffer.c     |  1 -
 tools/perf/tests/event-times.c              |  4 +-
 tools/perf/tests/openat-syscall-tp-fields.c |  1 -
 tools/perf/tests/perf-record.c              |  1 -
 tools/perf/tests/task-exit.c                |  1 -
 tools/perf/util/bpf-filter.c                |  2 +-
 tools/perf/util/evlist.c                    |  3 +-
 tools/perf/util/target.c                    | 46 +--------------------
 tools/perf/util/target.h                    | 12 +-----
 13 files changed, 6 insertions(+), 73 deletions(-)

diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index bba36ebc2aa7..3a253a1b9f45 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -1663,7 +1663,6 @@ int cmd_ftrace(int argc, const char **argv)
 	int (*cmd_func)(struct perf_ftrace *) = NULL;
 	struct perf_ftrace ftrace = {
 		.tracer = DEFAULT_TRACER,
-		.target = { .uid = UINT_MAX, },
 	};
 	const struct option common_options[] = {
 	OPT_STRING('p', "pid", &ftrace.target.pid, "pid",
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 67fd2b006b0b..d75bd3684980 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1871,8 +1871,6 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	kvm->opts.user_interval = 1;
 	kvm->opts.mmap_pages = 512;
 	kvm->opts.target.uses_mmap = false;
-	kvm->opts.target.uid_str = NULL;
-	kvm->opts.target.uid = UINT_MAX;
 
 	symbol__init(NULL);
 	disable_buildid_cache();
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index bf0e5e12d992..50fc53adb7e4 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -108,9 +108,7 @@ static struct parse_events_option_args parse_events_option_args = {
 
 static bool all_counters_use_bpf = true;
 
-static struct target target = {
-	.uid	= UINT_MAX,
-};
+static struct target target;
 
 static volatile sig_atomic_t	child_pid			= -1;
 static int			detailed_run			=  0;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 4bb062b96f51..bf9b5d0630d3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -5399,7 +5399,6 @@ int cmd_trace(int argc, const char **argv)
 	struct trace trace = {
 		.opts = {
 			.target = {
-				.uid	   = UINT_MAX,
 				.uses_mmap = true,
 			},
 			.user_freq     = UINT_MAX,
diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
index 79a980b1e786..c5e7999f2817 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -91,7 +91,6 @@ static int test__backward_ring_buffer(struct test_suite *test __maybe_unused, in
 	struct parse_events_error parse_error;
 	struct record_opts opts = {
 		.target = {
-			.uid = UINT_MAX,
 			.uses_mmap = true,
 		},
 		.freq	      = 0,
diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
index deefe5003bfc..2148024b4f4a 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -17,9 +17,7 @@
 static int attach__enable_on_exec(struct evlist *evlist)
 {
 	struct evsel *evsel = evlist__last(evlist);
-	struct target target = {
-		.uid = UINT_MAX,
-	};
+	struct target target = {};
 	const char *argv[] = { "true", NULL, };
 	char sbuf[STRERR_BUFSIZE];
 	int err;
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index 0ef4ba7c1571..2a139d2781a8 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -28,7 +28,6 @@ static int test__syscall_openat_tp_fields(struct test_suite *test __maybe_unused
 {
 	struct record_opts opts = {
 		.target = {
-			.uid = UINT_MAX,
 			.uses_mmap = true,
 		},
 		.no_buffering = true,
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 0958c7c8995f..0b3c37e66871 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -45,7 +45,6 @@ static int test__PERF_RECORD(struct test_suite *test __maybe_unused, int subtest
 {
 	struct record_opts opts = {
 		.target = {
-			.uid = UINT_MAX,
 			.uses_mmap = true,
 		},
 		.no_buffering = true,
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 8e328bbd509d..4053ff2813bb 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -46,7 +46,6 @@ static int test__task_exit(struct test_suite *test __maybe_unused, int subtest _
 	struct evsel *evsel;
 	struct evlist *evlist;
 	struct target target = {
-		.uid		= UINT_MAX,
 		.uses_mmap	= true,
 	};
 	const char *argv[] = { "true", NULL };
diff --git a/tools/perf/util/bpf-filter.c b/tools/perf/util/bpf-filter.c
index 92e2f054b45e..d0e013eeb0f7 100644
--- a/tools/perf/util/bpf-filter.c
+++ b/tools/perf/util/bpf-filter.c
@@ -450,7 +450,7 @@ int perf_bpf_filter__prepare(struct evsel *evsel, struct target *target)
 	struct bpf_program *prog;
 	struct bpf_link *link;
 	struct perf_bpf_filter_entry *entry;
-	bool needs_idx_hash = !target__has_cpu(target) && !target->uid_str;
+	bool needs_idx_hash = !target__has_cpu(target);
 
 	entry = calloc(MAX_FILTERS, sizeof(*entry));
 	if (entry == NULL)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index dcd1130502df..bed91bc88510 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1006,8 +1006,7 @@ int evlist__create_maps(struct evlist *evlist, struct target *target)
 	 * per-thread data. thread_map__new_str will call
 	 * thread_map__new_all_cpus to enumerate all threads.
 	 */
-	threads = thread_map__new_str(target->pid, target->tid, target->uid,
-				      all_threads);
+	threads = thread_map__new_str(target->pid, target->tid, UINT_MAX, all_threads);
 
 	if (!threads)
 		return -1;
diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index f3ad59ccfa99..8cf71bea295a 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -28,20 +28,6 @@ enum target_errno target__validate(struct target *target)
 			ret = TARGET_ERRNO__PID_OVERRIDE_CPU;
 	}
 
-	/* UID and PID are mutually exclusive */
-	if (target->tid && target->uid_str) {
-		target->uid_str = NULL;
-		if (ret == TARGET_ERRNO__SUCCESS)
-			ret = TARGET_ERRNO__PID_OVERRIDE_UID;
-	}
-
-	/* UID and CPU are mutually exclusive */
-	if (target->uid_str && target->cpu_list) {
-		target->cpu_list = NULL;
-		if (ret == TARGET_ERRNO__SUCCESS)
-			ret = TARGET_ERRNO__UID_OVERRIDE_CPU;
-	}
-
 	/* PID and SYSTEM are mutually exclusive */
 	if (target->tid && target->system_wide) {
 		target->system_wide = false;
@@ -49,13 +35,6 @@ enum target_errno target__validate(struct target *target)
 			ret = TARGET_ERRNO__PID_OVERRIDE_SYSTEM;
 	}
 
-	/* UID and SYSTEM are mutually exclusive */
-	if (target->uid_str && target->system_wide) {
-		target->system_wide = false;
-		if (ret == TARGET_ERRNO__SUCCESS)
-			ret = TARGET_ERRNO__UID_OVERRIDE_SYSTEM;
-	}
-
 	/* BPF and CPU are mutually exclusive */
 	if (target->bpf_str && target->cpu_list) {
 		target->cpu_list = NULL;
@@ -70,13 +49,6 @@ enum target_errno target__validate(struct target *target)
 			ret = TARGET_ERRNO__BPF_OVERRIDE_PID;
 	}
 
-	/* BPF and UID are mutually exclusive */
-	if (target->bpf_str && target->uid_str) {
-		target->uid_str = NULL;
-		if (ret == TARGET_ERRNO__SUCCESS)
-			ret = TARGET_ERRNO__BPF_OVERRIDE_UID;
-	}
-
 	/* BPF and THREADS are mutually exclusive */
 	if (target->bpf_str && target->per_thread) {
 		target->per_thread = false;
@@ -124,31 +96,19 @@ uid_t parse_uid(const char *str)
 	return result->pw_uid;
 }
 
-enum target_errno target__parse_uid(struct target *target)
-{
-	target->uid = parse_uid(target->uid_str);
-
-	return target->uid != UINT_MAX ? TARGET_ERRNO__SUCCESS : TARGET_ERRNO__INVALID_UID;
-}
-
 /*
  * This must have a same ordering as the enum target_errno.
  */
 static const char *target__error_str[] = {
 	"PID/TID switch overriding CPU",
-	"PID/TID switch overriding UID",
-	"UID switch overriding CPU",
 	"PID/TID switch overriding SYSTEM",
-	"UID switch overriding SYSTEM",
 	"SYSTEM/CPU switch overriding PER-THREAD",
 	"BPF switch overriding CPU",
 	"BPF switch overriding PID/TID",
-	"BPF switch overriding UID",
 	"BPF switch overriding THREAD",
-	"Invalid User: %s",
 };
 
-int target__strerror(struct target *target, int errnum,
+int target__strerror(struct target *target __maybe_unused, int errnum,
 			  char *buf, size_t buflen)
 {
 	int idx;
@@ -173,10 +133,6 @@ int target__strerror(struct target *target, int errnum,
 		snprintf(buf, buflen, "%s", msg);
 		break;
 
-	case TARGET_ERRNO__INVALID_UID:
-		snprintf(buf, buflen, msg, target->uid_str);
-		break;
-
 	default:
 		/* cannot reach here */
 		break;
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index e082bda990fb..84ebb9c940c6 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -9,9 +9,7 @@ struct target {
 	const char   *pid;
 	const char   *tid;
 	const char   *cpu_list;
-	const char   *uid_str;
 	const char   *bpf_str;
-	uid_t	     uid;
 	bool	     system_wide;
 	bool	     uses_mmap;
 	bool	     default_per_cpu;
@@ -36,32 +34,24 @@ enum target_errno {
 
 	/* for target__validate() */
 	TARGET_ERRNO__PID_OVERRIDE_CPU	= __TARGET_ERRNO__START,
-	TARGET_ERRNO__PID_OVERRIDE_UID,
-	TARGET_ERRNO__UID_OVERRIDE_CPU,
 	TARGET_ERRNO__PID_OVERRIDE_SYSTEM,
-	TARGET_ERRNO__UID_OVERRIDE_SYSTEM,
 	TARGET_ERRNO__SYSTEM_OVERRIDE_THREAD,
 	TARGET_ERRNO__BPF_OVERRIDE_CPU,
 	TARGET_ERRNO__BPF_OVERRIDE_PID,
-	TARGET_ERRNO__BPF_OVERRIDE_UID,
 	TARGET_ERRNO__BPF_OVERRIDE_THREAD,
 
-	/* for target__parse_uid() */
-	TARGET_ERRNO__INVALID_UID,
-
 	__TARGET_ERRNO__END,
 };
 
 enum target_errno target__validate(struct target *target);
 
 uid_t parse_uid(const char *str);
-enum target_errno target__parse_uid(struct target *target);
 
 int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);
 
 static inline bool target__has_task(struct target *target)
 {
-	return target->tid || target->pid || target->uid_str;
+	return target->tid || target->pid;
 }
 
 static inline bool target__has_cpu(struct target *target)

From 5128492b2b6bb3a2881e135da54fd8e224a5f610 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 4 Jun 2025 10:45:44 -0700
Subject: [PATCH 011/179] perf thread_map: Remove uid options

Now the target doesn't have a uid, it is handled through BPF filters,
remove the uid options to thread_map creation. Tidy up the functions
used in tests to avoid passing unused arguments.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604174545.2853620-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/event-times.c             |  4 +--
 tools/perf/tests/keep-tracking.c           |  2 +-
 tools/perf/tests/mmap-basic.c              |  2 +-
 tools/perf/tests/openat-syscall-all-cpus.c |  2 +-
 tools/perf/tests/openat-syscall.c          |  2 +-
 tools/perf/tests/perf-time-to-tsc.c        |  2 +-
 tools/perf/tests/switch-tracking.c         |  2 +-
 tools/perf/tests/thread-map.c              |  2 +-
 tools/perf/util/evlist.c                   |  2 +-
 tools/perf/util/python.c                   | 10 +++----
 tools/perf/util/thread_map.c               | 32 ++--------------------
 tools/perf/util/thread_map.h               |  6 ++--
 12 files changed, 20 insertions(+), 48 deletions(-)

diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
index 2148024b4f4a..ae3b98bb42cf 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -62,7 +62,7 @@ static int attach__current_disabled(struct evlist *evlist)
 
 	pr_debug("attaching to current thread as disabled\n");
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	if (threads == NULL) {
 		pr_debug("thread_map__new\n");
 		return -1;
@@ -88,7 +88,7 @@ static int attach__current_enabled(struct evlist *evlist)
 
 	pr_debug("attaching to current thread as enabled\n");
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	if (threads == NULL) {
 		pr_debug("failed to call thread_map__new\n");
 		return -1;
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index 5a3b2bed07f3..eafb49eb0b56 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -78,7 +78,7 @@ static int test__keep_tracking(struct test_suite *test __maybe_unused, int subte
 	int found, err = -1;
 	const char *comm;
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	CHECK_NOT_NULL__(threads);
 
 	cpus = perf_cpu_map__new_online_cpus();
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index bd2106628b34..04b547c6bdbe 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -46,7 +46,7 @@ static int test__basic_mmap(struct test_suite *test __maybe_unused, int subtest
 	char sbuf[STRERR_BUFSIZE];
 	struct mmap *md;
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	if (threads == NULL) {
 		pr_debug("thread_map__new\n");
 		return -1;
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index fb114118c876..3644d6f52c07 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -28,7 +28,7 @@ static int test__openat_syscall_event_on_all_cpus(struct test_suite *test __mayb
 	struct evsel *evsel;
 	unsigned int nr_openat_calls = 111, i;
 	cpu_set_t cpu_set;
-	struct perf_thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
+	struct perf_thread_map *threads = thread_map__new_by_tid(getpid());
 	char sbuf[STRERR_BUFSIZE];
 	char errbuf[BUFSIZ];
 
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 131b62271bfa..b54cbe5f1808 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -20,7 +20,7 @@ static int test__openat_syscall_event(struct test_suite *test __maybe_unused,
 	int err = TEST_FAIL, fd;
 	struct evsel *evsel;
 	unsigned int nr_openat_calls = 111, i;
-	struct perf_thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
+	struct perf_thread_map *threads = thread_map__new_by_tid(getpid());
 	char sbuf[STRERR_BUFSIZE];
 	char errbuf[BUFSIZ];
 
diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
index d3e40fa5482c..d4437410c99f 100644
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -90,7 +90,7 @@ static int test__perf_time_to_tsc(struct test_suite *test __maybe_unused, int su
 	struct mmap *md;
 
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	CHECK_NOT_NULL__(threads);
 
 	cpus = perf_cpu_map__new_online_cpus();
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 6b3aac283c37..5be294014d3b 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -351,7 +351,7 @@ static int test__switch_tracking(struct test_suite *test __maybe_unused, int sub
 	const char *comm;
 	int err = -1;
 
-	threads = thread_map__new(-1, getpid(), UINT_MAX);
+	threads = thread_map__new_by_tid(getpid());
 	if (!threads) {
 		pr_debug("thread_map__new failed!\n");
 		goto out_err;
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index 1fe521466bf4..54209592168d 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -115,7 +115,7 @@ static int test__thread_map_remove(struct test_suite *test __maybe_unused, int s
 	TEST_ASSERT_VAL("failed to allocate map string",
 			asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
 
-	threads = thread_map__new_str(str, NULL, 0, false);
+	threads = thread_map__new_str(str, /*tid=*/NULL, /*all_threads=*/false);
 	free(str);
 
 	TEST_ASSERT_VAL("failed to allocate thread_map",
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index bed91bc88510..5664ebf6bbc6 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1006,7 +1006,7 @@ int evlist__create_maps(struct evlist *evlist, struct target *target)
 	 * per-thread data. thread_map__new_str will call
 	 * thread_map__new_all_cpus to enumerate all threads.
 	 */
-	threads = thread_map__new_str(target->pid, target->tid, UINT_MAX, all_threads);
+	threads = thread_map__new_str(target->pid, target->tid, all_threads);
 
 	if (!threads)
 		return -1;
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 321c333877fa..82666bcd2eda 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -566,14 +566,14 @@ struct pyrf_thread_map {
 static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
 				 PyObject *args, PyObject *kwargs)
 {
-	static char *kwlist[] = { "pid", "tid", "uid", NULL };
-	int pid = -1, tid = -1, uid = UINT_MAX;
+	static char *kwlist[] = { "pid", "tid", NULL };
+	int pid = -1, tid = -1;
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
-					 kwlist, &pid, &tid, &uid))
+	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
+					 kwlist, &pid, &tid))
 		return -1;
 
-	pthreads->threads = thread_map__new(pid, tid, uid);
+	pthreads->threads = thread_map__new(pid, tid);
 	if (pthreads->threads == NULL)
 		return -1;
 	return 0;
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index b5f12390c355..ca193c1374ed 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -72,7 +72,7 @@ struct perf_thread_map *thread_map__new_by_tid(pid_t tid)
 	return threads;
 }
 
-static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid)
+static struct perf_thread_map *thread_map__new_all_cpus(void)
 {
 	DIR *proc;
 	int max_threads = 32, items, i;
@@ -98,15 +98,6 @@ static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid)
 		if (*end) /* only interested in proper numerical dirents */
 			continue;
 
-		snprintf(path, sizeof(path), "/proc/%s", dirent->d_name);
-
-		if (uid != UINT_MAX) {
-			struct stat st;
-
-			if (stat(path, &st) != 0 || st.st_uid != uid)
-				continue;
-		}
-
 		snprintf(path, sizeof(path), "/proc/%d/task", pid);
 		items = scandir(path, &namelist, filter, NULL);
 		if (items <= 0) {
@@ -157,24 +148,11 @@ static struct perf_thread_map *__thread_map__new_all_cpus(uid_t uid)
 	goto out_closedir;
 }
 
-struct perf_thread_map *thread_map__new_all_cpus(void)
-{
-	return __thread_map__new_all_cpus(UINT_MAX);
-}
-
-struct perf_thread_map *thread_map__new_by_uid(uid_t uid)
-{
-	return __thread_map__new_all_cpus(uid);
-}
-
-struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid)
+struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid)
 {
 	if (pid != -1)
 		return thread_map__new_by_pid(pid);
 
-	if (tid == -1 && uid != UINT_MAX)
-		return thread_map__new_by_uid(uid);
-
 	return thread_map__new_by_tid(tid);
 }
 
@@ -289,15 +267,11 @@ struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str)
 	goto out;
 }
 
-struct perf_thread_map *thread_map__new_str(const char *pid, const char *tid,
-				       uid_t uid, bool all_threads)
+struct perf_thread_map *thread_map__new_str(const char *pid, const char *tid, bool all_threads)
 {
 	if (pid)
 		return thread_map__new_by_pid_str(pid);
 
-	if (!tid && uid != UINT_MAX)
-		return thread_map__new_by_uid(uid);
-
 	if (all_threads)
 		return thread_map__new_all_cpus();
 
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 00ec05fc1656..fc16d87f32fb 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -11,13 +11,11 @@ struct perf_record_thread_map;
 struct perf_thread_map *thread_map__new_dummy(void);
 struct perf_thread_map *thread_map__new_by_pid(pid_t pid);
 struct perf_thread_map *thread_map__new_by_tid(pid_t tid);
-struct perf_thread_map *thread_map__new_by_uid(uid_t uid);
-struct perf_thread_map *thread_map__new_all_cpus(void);
-struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
+struct perf_thread_map *thread_map__new(pid_t pid, pid_t tid);
 struct perf_thread_map *thread_map__new_event(struct perf_record_thread_map *event);
 
 struct perf_thread_map *thread_map__new_str(const char *pid,
-		const char *tid, uid_t uid, bool all_threads);
+		const char *tid, bool all_threads);
 
 struct perf_thread_map *thread_map__new_by_tid_str(const char *tid_str);
 

From 5ae6a303c22a07234108430b5fba869d5d1697e3 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 3 Jun 2025 15:13:58 -0700
Subject: [PATCH 012/179] tools/build: Remove some unused libbpf pre-1.0
 feature test logic

Commit 76a97cf2e169 ("perf build: Remove libbpf pre-1.0 feature
tests") removed the libbpf feature test logic used by perf in favor of
using LIBBPF_MAJOR_VERSION. Remove some build targets that should have
been removed as part of that clean up.

Fixes: 76a97cf2e169 ("perf build: Remove libbpf pre-1.0 feature tests")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250603221358.2562167-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/build/Makefile.feature |  6 ------
 tools/build/feature/Makefile | 21 ---------------------
 2 files changed, 27 deletions(-)

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 57bd995ce6af..3a1fddd38db0 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -126,12 +126,6 @@ FEATURE_TESTS_EXTRA :=                  \
          llvm                           \
          clang                          \
          libbpf                         \
-         libbpf-btf__load_from_kernel_by_id \
-         libbpf-bpf_prog_load           \
-         libbpf-bpf_object__next_program \
-         libbpf-bpf_object__next_map    \
-         libbpf-bpf_program__set_insns  \
-         libbpf-bpf_create_map		\
          libpfm4                        \
          libdebuginfod			\
          clang-bpf-co-re		\
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index b8b5fb183dd4..4aa166d3eab6 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -339,27 +339,6 @@ $(OUTPUT)test-bpf.bin:
 $(OUTPUT)test-libbpf.bin:
 	$(BUILD) -lbpf
 
-$(OUTPUT)test-libbpf-btf__load_from_kernel_by_id.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_prog_load.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_map_create.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_object__next_program.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_object__next_map.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-bpf_program__set_insns.bin:
-	$(BUILD) -lbpf
-
-$(OUTPUT)test-libbpf-btf__raw_data.bin:
-	$(BUILD) -lbpf
-
 $(OUTPUT)test-sdt.bin:
 	$(BUILD)
 

From 46e34646ae3e0e38da2454e2205ab49c6f97c578 Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Sun, 1 Jun 2025 10:32:52 -0700
Subject: [PATCH 013/179] perf trace: Remove --map-dump documentation

The --map-dump option was removed in 5e6da6be3082 ("perf trace: Migrate
BPF augmentation to use a skeleton"), this patch removes its remaining
documentation.

Fixes: 5e6da6be3082 ("perf trace: Migrate BPF augmentation to use a skeleton")
Signed-off-by: Howard Chu <howardchu95@gmail.com>
Link: https://lore.kernel.org/r/20250601173252.717780-1-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-trace.txt | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index c1fb6056a0d3..973fede403a0 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -238,14 +238,6 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 	the same beautifiers used in the strace-like enter+exit lines to augment the
 	tracepoint arguments.
 
---map-dump::
-	Dump BPF maps setup by events passed via -e, for instance the augmented_raw_syscalls
-	living in tools/perf/examples/bpf/augmented_raw_syscalls.c. For now this
-	dumps just boolean map values and integer keys, in time this will print in hex
-	by default and use BTF when available, as well as use functions to do pretty
-	printing using the existing 'perf trace' syscall arg beautifiers to map integer
-	arguments to strings (pid to comm, syscall id to syscall name, etc).
-
 --force-btf::
 	Use btf_dump to pretty print syscall argument data, instead of using hand-crafted pretty
 	printers. This option is intended for testing BTF integration in perf trace. btf_dump-based

From 6612d4d4910d45b15dee4a989b1aa2ddce8cc617 Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:43 -0700
Subject: [PATCH 014/179] perf test trace: Use shell's -f flag to check if
 vmlinux exists

To match the style of the existing codebase, no functional changes
were applied.

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-2-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index f0b49f7fb57d..b3775209a0b1 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -17,7 +17,7 @@ skip_if_no_perf_trace || exit 2
 
 check_vmlinux() {
   echo "Checking if vmlinux exists"
-  if ! ls /sys/kernel/btf/vmlinux 1>/dev/null 2>&1
+  if [ ! -f /sys/kernel/btf/vmlinux ]
   then
     echo "trace+enum test [Skipped missing vmlinux BTF support]"
     err=2

From 78fc8bfe44bf4326fd295572ca2a6b01489459e6 Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:44 -0700
Subject: [PATCH 015/179] perf test trace: Remove set -e and print trace test's
 error messages

Currently perf test utilizes the set -e option in shell that exit
immediately if a command exits with a non-zero status, this prevents
further error handling and introduces ambiguity. This patch removes set
-e and prints the error message after invoking perf trace during perf
tests.

In my case, the command that exits with a non-zero status is perf
trace instead of grep, because it can't find the 'timer:hrtimer_setup'
tracepoint, see below.

Before:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 783533
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint syscall
    ---- end(-1) ----
    107: perf trace enum augmentation tests                              : FAILED!

After:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 851658
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint timer:hrtimer_setup,timer:hrtimer_start
    [tracepoint failure] Failed to trace tracepoint timer:hrtimer_setup,timer:hrtimer_start, output:
    event syntax error: 'timer:hrtimer_setup,timer:hrtimer_start'
			 \___ unknown tracepoint

    Error:  File /sys/kernel/tracing//events/timer/hrtimer_setup not found.
    Hint:   Perhaps this kernel misses some CONFIG_ setting to enable this feature?.

    Run 'perf list' for a list of valid events

     Usage: perf trace [<options>] [<command>]
	or: perf trace [<options>] -- <command> [<options>]
	or: perf trace record [<options>] [<command>]
	or: perf trace record [<options>] -- <command> [<options>]

	-e, --event <event>   event/syscall selector. use 'perf list' to list available events---- end(-1) ----
    107: perf trace enum augmentation tests                              : FAILED!

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-3-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index b3775209a0b1..f59ba34fac4c 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -3,7 +3,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
 err=0
-set -e
 
 syscall="landlock_add_rule"
 non_syscall="timer:hrtimer_setup,timer:hrtimer_start"
@@ -34,22 +33,24 @@ trace_landlock() {
     return
   fi
 
-  if perf trace -e $syscall $TESTPROG 2>&1 | \
-     grep -q -E ".*landlock_add_rule\(ruleset_fd: 11, rule_type: (LANDLOCK_RULE_PATH_BENEATH|LANDLOCK_RULE_NET_PORT), rule_attr: 0x[a-f0-9]+, flags: 45\) = -1.*"
+  output="$(perf trace -e $syscall $TESTPROG 2>&1)"
+  if echo "$output" | grep -q -E ".*landlock_add_rule\(ruleset_fd: 11, rule_type: (LANDLOCK_RULE_PATH_BENEATH|LANDLOCK_RULE_NET_PORT), rule_attr: 0x[a-f0-9]+, flags: 45\) = -1.*"
   then
     err=0
   else
+	printf "[syscall failure] Failed to trace syscall $syscall, output:\n$output\n"
     err=1
   fi
 }
 
 trace_non_syscall() {
-  echo "Tracing non-syscall tracepoint ${non-syscall}"
-  if perf trace -e $non_syscall --max-events=1 2>&1 | \
-     grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$'
+  echo "Tracing non-syscall tracepoint ${non_syscall}"
+  output="$(perf trace -e $non_syscall --max-events=1 2>&1)"
+  if echo "$output" | grep -q -E '.*timer:hrtimer_.*\(.*mode: HRTIMER_MODE_.*\)$'
   then
     err=0
   else
+	printf "[tracepoint failure] Failed to trace tracepoint $non_syscall, output:\n$output\n"
     err=1
   fi
 }

From fc4a0ae7e19ed1d921202414b525aa275e831b64 Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:45 -0700
Subject: [PATCH 016/179] perf test trace: Stop tracing hrtimer_setup event in
 trace enum test

The event 'timer:hrtimer_setup' is relatively new, for older kernels,
perf trace enum tests won't run as the event 'timer:hrtimer_setup'
cannot be found.

It was originally called 'timer:hrtimer_init', before being renamed in:

commit 244132c4e577 ("tracing/timers: Rename the hrtimer_init event to hrtimer_setup")

Using timer:hrtimer_start should be enough for current testing, and
hopefully 'start' won't be renamed in the future.

Before:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 786187
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint timer:hrtimer_setup,timer:hrtimer_start
    [tracepoint failure] Failed to trace timer:hrtimer_setup,timer:hrtimer_start tracepoint, output:
    event syntax error: 'timer:hrtimer_setup,timer:hrtimer_start'
			 \___ unknown tracepoint

    Error:  File /sys/kernel/tracing//events/timer/hrtimer_setup not found.
    Hint:   Perhaps this kernel misses some CONFIG_ setting to enable this feature?.

    Run 'perf list' for a list of valid events

     Usage: perf trace [<options>] [<command>]
	or: perf trace [<options>] -- <command> [<options>]
	or: perf trace record [<options>] [<command>]
	or: perf trace record [<options>] -- <command> [<options>]

	-e, --event <event>   event/syscall selector. use 'perf list' to list available events
    ---- end(-1) ----
    107: perf trace enum augmentation tests                              : FAILED!

After:
    $ sudo /tmp/perf test enum -vv
    107: perf trace enum augmentation tests:
    107: perf trace enum augmentation tests                              : Running
    --- start ---
    test child forked, pid 808547
    Checking if vmlinux exists
    Tracing syscall landlock_add_rule
    Tracing non-syscall tracepoint timer:hrtimer_start
    ---- end(0) ----
    107: perf trace enum augmentation tests                              : Ok

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-4-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index f59ba34fac4c..c37017bfeb5e 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -5,7 +5,7 @@
 err=0
 
 syscall="landlock_add_rule"
-non_syscall="timer:hrtimer_setup,timer:hrtimer_start"
+non_syscall="timer:hrtimer_start"
 
 TESTPROG="perf test -w landlock"
 

From d796c51ee52a10413435816ebdae8a0aa8df8f93 Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:46 -0700
Subject: [PATCH 017/179] perf test trace: Remove set -e for BTF general tests

Remove set -e and print error messages in BTF general tests.

Before:
    $ sudo /tmp/perf test btf -vv
    108: perf trace BTF general tests:
    108: perf trace BTF general tests                                    : Running
    --- start ---
    test child forked, pid 889299
    Checking if vmlinux BTF exists
    Testing perf trace's string augmentation
    String augmentation test failed
    ---- end(-1) ----
    108: perf trace BTF general tests                                    : FAILED!

After:
    $ sudo /tmp/perf test btf -vv
    108: perf trace BTF general tests:
    108: perf trace BTF general tests                                    : Running
    --- start ---
    test child forked, pid 886551
    Checking if vmlinux BTF exists
    Testing perf trace's string augmentation
    String augmentation test failed, output:
    :886566/886566 renameat2(CWD, "/tmp/file1_RcMa", CWD, "/tmp/file2_RcMa", NOREPLACE) = 0---- end(-1) ----
    108: perf trace BTF general tests                                    : FAILED!

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-5-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_general.sh | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/tools/perf/tests/shell/trace_btf_general.sh b/tools/perf/tests/shell/trace_btf_general.sh
index a25d8744695e..5fa50d815203 100755
--- a/tools/perf/tests/shell/trace_btf_general.sh
+++ b/tools/perf/tests/shell/trace_btf_general.sh
@@ -3,7 +3,6 @@
 # SPDX-License-Identifier: GPL-2.0
 
 err=0
-set -e
 
 # shellcheck source=lib/probe.sh
 . "$(dirname $0)"/lib/probe.sh
@@ -28,10 +27,10 @@ check_vmlinux() {
 
 trace_test_string() {
   echo "Testing perf trace's string augmentation"
-  if ! perf trace -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1 | \
-    grep -q -E "^mv/[0-9]+ renameat(2)?\(.*, \"${file1}\", .*, \"${file2}\", .*\) += +[0-9]+$"
+  output="$(perf trace -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1)"
+  if ! echo "$output" | grep -q -E "^mv/[0-9]+ renameat(2)?\(.*, \"${file1}\", .*, \"${file2}\", .*\) += +[0-9]+$"
   then
-    echo "String augmentation test failed"
+    printf "String augmentation test failed, output:\n$output\n"
     err=1
   fi
 }
@@ -39,20 +38,20 @@ trace_test_string() {
 trace_test_buffer() {
   echo "Testing perf trace's buffer augmentation"
   # echo will insert a newline (\10) at the end of the buffer
-  if ! perf trace -e write --max-events=1 -- echo "${buffer}" 2>&1 | \
-    grep -q -E "^echo/[0-9]+ write\([0-9]+, ${buffer}.*, [0-9]+\) += +[0-9]+$"
+  output="$(perf trace -e write --max-events=1 -- echo "${buffer}" 2>&1)"
+  if ! echo "$output" | grep -q -E "^echo/[0-9]+ write\([0-9]+, ${buffer}.*, [0-9]+\) += +[0-9]+$"
   then
-    echo "Buffer augmentation test failed"
+    printf "Buffer augmentation test failed, output:\n$output\n"
     err=1
   fi
 }
 
 trace_test_struct_btf() {
   echo "Testing perf trace's struct augmentation"
-  if ! perf trace -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1 | \
-    grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, 0x[0-9a-f]+\) += +[0-9]+$"
+  output="$(perf trace -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1)"
+  if ! echo "$output" | grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, 0x[0-9a-f]+\) += +[0-9]+$"
   then
-    echo "BTF struct augmentation test failed"
+	printf "BTF struct augmentation test failed, output:\n$output\n"
     err=1
   fi
 }

From 77e11efedba606af21224ee5ed5305aebbd029da Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:47 -0700
Subject: [PATCH 018/179] perf test trace: Use --sort-events in BTF general
 tests

Without the '--sort-events' flag, perf trace doesn't receive and process
events based on their arrival time, thus PERF_RECORD_COMM event that
assigns the correct comm to a PID, may be delivered and processed after
regular samples, causing trace outputs not having a 'comm', e.g.
'mv', instead, having the default PID placeholder, e.g. ':14514'.

Hopefully this answers Namhyung's question in [1].

You can simply justify the statement with this diff: [2].

Now, simply run this command multiple times:
    $ touch /tmp/file1 && sudo /tmp/perf trace -e renameat* -- mv /tmp/file1 /tmp/file2 && rm -f /tmp/file2
And you should see two types of results:

    $ touch /tmp/file1 && sudo /tmp/perf trace -e renameat* -- mv /tmp/file1 /tmp/file2 && rm -f /tmp/file2
    [debug] deliver
    [debug] machine__process_comm_event
    [OVERRIDE] old :1221169 new mv str mv
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
	 0.000 ( 0.013 ms): mv/1221169 renameat2(olddfd: CWD, oldname: "/tmp/file1", newdfd: CWD, newname: "/tmp/file2", flags: NOREPLACE) = 0
    [debug] deliver

    $ touch /tmp/file1 && sudo /tmp/perf trace -e renameat* -- mv /tmp/file1 /tmp/file2 && rm -f /tmp/file2
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
    [debug] deliver
	 0.000 ( 0.014 ms): :1221398/1221398 renameat2(olddfd: CWD, oldname: "/tmp/file1", newdfd: CWD, newname: "/tmp/file2", flags: NOREPLACE) = 0
    [debug] deliver
    [debug] deliver
    [debug] machine__process_comm_event
    [OVERRIDE] old :1221398 new mv str mv
    [debug] deliver
    [debug] deliver
    [debug] deliver

Anyway, use --sort-events in BTF general tests to avoid :PID, a comm is
preferred.

[1]: https://lore.kernel.org/linux-perf-users/Z_AeswETE5xLcPT8@google.com/
[2]: https://gist.githubusercontent.com/Sberm/6b72b2a1cf1c62244f1f996481769baf/raw/529667bd74a2e7e1953bbd4be545bf875da8a3e7/unsorted.patch

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-6-howardchu95@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_general.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/shell/trace_btf_general.sh b/tools/perf/tests/shell/trace_btf_general.sh
index 5fa50d815203..30cd3a53f868 100755
--- a/tools/perf/tests/shell/trace_btf_general.sh
+++ b/tools/perf/tests/shell/trace_btf_general.sh
@@ -27,7 +27,7 @@ check_vmlinux() {
 
 trace_test_string() {
   echo "Testing perf trace's string augmentation"
-  output="$(perf trace -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1)"
+  output="$(perf trace --sort-events -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1)"
   if ! echo "$output" | grep -q -E "^mv/[0-9]+ renameat(2)?\(.*, \"${file1}\", .*, \"${file2}\", .*\) += +[0-9]+$"
   then
     printf "String augmentation test failed, output:\n$output\n"
@@ -38,7 +38,7 @@ trace_test_string() {
 trace_test_buffer() {
   echo "Testing perf trace's buffer augmentation"
   # echo will insert a newline (\10) at the end of the buffer
-  output="$(perf trace -e write --max-events=1 -- echo "${buffer}" 2>&1)"
+  output="$(perf trace --sort-events -e write --max-events=1 -- echo "${buffer}" 2>&1)"
   if ! echo "$output" | grep -q -E "^echo/[0-9]+ write\([0-9]+, ${buffer}.*, [0-9]+\) += +[0-9]+$"
   then
     printf "Buffer augmentation test failed, output:\n$output\n"
@@ -48,7 +48,7 @@ trace_test_buffer() {
 
 trace_test_struct_btf() {
   echo "Testing perf trace's struct augmentation"
-  output="$(perf trace -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1)"
+  output="$(perf trace --sort-events -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1)"
   if ! echo "$output" | grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, 0x[0-9a-f]+\) += +[0-9]+$"
   then
 	printf "BTF struct augmentation test failed, output:\n$output\n"

From 63e37590cd73b0aaf0dbee3c8bdb00c3ff77c8da Mon Sep 17 00:00:00 2001
From: Howard Chu <howardchu95@gmail.com>
Date: Wed, 28 May 2025 12:11:48 -0700
Subject: [PATCH 019/179] perf test trace: Change the regex pattern in the
 struct test

Ian mentioned a reliably occurred failure in the trace_btf_general test
where he obtained trace output of:
    sleep/279619 clock_nanosleep(0, 0, {1,1,}, 0x7ffcd47b6450) = 0

But the regex pattern used for verification is
    "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, ..."

This lead to a mismatch.

The reason is, different sleep commands use different timespec data to
call clock_nanosleep, on my machine, the value of tv_nsec is 0.
~~~
$ sudo /tmp/perf/perf trace -e clock_nanosleep -- sleep 1
     0.000 (1000.196 ms): sleep/54261 clock_nanosleep(rqtp: { .tv_sec:
1, .tv_nsec: 0 }, rmtp: 0x7ffe13529550) = 0
~~~

While Ian had this trace log:
~~~
$ sudo /tmp/perf/perf trace -e clock_nanosleep -- sleep 1
    0.000 (1000.208 ms): sleep/1710732 clock_nanosleep(rqtp: {
.tv_sec: 1, .tv_nsec: 1 }, rmtp: 0x7ffc091f4090) = 0
~~~

Because sleep's behavior of setting 'tv_nsec' is not certain, and tv_sec
is most definitely 1, this patch relaxes the key regex pattern to
'\{1,.*\}' for a better chance of matching.

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250528191148.89118-7-howardchu95@gmail.com
Reported-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/trace_btf_general.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/trace_btf_general.sh b/tools/perf/tests/shell/trace_btf_general.sh
index 30cd3a53f868..ef2da806be6b 100755
--- a/tools/perf/tests/shell/trace_btf_general.sh
+++ b/tools/perf/tests/shell/trace_btf_general.sh
@@ -49,7 +49,7 @@ trace_test_buffer() {
 trace_test_struct_btf() {
   echo "Testing perf trace's struct augmentation"
   output="$(perf trace --sort-events -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1)"
-  if ! echo "$output" | grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,\}, 0x[0-9a-f]+\) += +[0-9]+$"
+  if ! echo "$output" | grep -q -E "^sleep/[0-9]+ clock_nanosleep\(0, 0, \{1,.*\}, 0x[0-9a-f]+\) += +[0-9]+$"
   then
 	printf "BTF struct augmentation test failed, output:\n$output\n"
     err=1

From ea04fe1b90cbb42966b471a4982bc52215b62857 Mon Sep 17 00:00:00 2001
From: Aditya Bodkhe <aditya.b1@linux.ibm.com>
Date: Tue, 29 Apr 2025 12:21:32 +0530
Subject: [PATCH 020/179] perf script: perf script tests fails with segfault

pert script tests fails with segmentation fault as below:

  92: perf script tests:
  --- start ---
  test child forked, pid 103769
  DB test
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.012 MB /tmp/perf-test-script.7rbftEpOzX/perf.data (9 samples) ]
  /usr/libexec/perf-core/tests/shell/script.sh: line 35:
  103780 Segmentation fault      (core dumped)
  perf script -i "${perfdatafile}" -s "${db_test}"
  --- Cleaning up ---
  ---- end(-1) ----
  92: perf script tests                                               : FAILED!

Backtrace pointed to :
	#0  0x0000000010247dd0 in maps.machine ()
	#1  0x00000000101d178c in db_export.sample ()
	#2  0x00000000103412c8 in python_process_event ()
	#3  0x000000001004eb28 in process_sample_event ()
	#4  0x000000001024fcd0 in machines.deliver_event ()
	#5  0x000000001025005c in perf_session.deliver_event ()
	#6  0x00000000102568b0 in __ordered_events__flush.part.0 ()
	#7  0x0000000010251618 in perf_session.process_events ()
	#8  0x0000000010053620 in cmd_script ()
	#9  0x00000000100b5a28 in run_builtin ()
	#10 0x00000000100b5f94 in handle_internal_command ()
	#11 0x0000000010011114 in main ()

Further investigation reveals that this occurs in the `perf script tests`,
because it uses `db_test.py` script. This script sets `perf_db_export_mode = True`.

With `perf_db_export_mode` enabled, if a sample originates from a hypervisor,
perf doesn't set maps for "[H]" sample in the code. Consequently, `al->maps` remains NULL
when `maps__machine(al->maps)` is called from `db_export__sample`.

As al->maps can be NULL in case of Hypervisor samples , use thread->maps
because even for Hypervisor sample, machine should exist.
If we don't have machine for some reason, return -1 to avoid segmentation fault.

Reported-by: Disha Goel <disgoel@linux.ibm.com>
Signed-off-by: Aditya Bodkhe <aditya.b1@linux.ibm.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Disha Goel <disgoel@linux.ibm.com>
Link: https://lore.kernel.org/r/20250429065132.36839-1-adityab1@linux.ibm.com
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/db-export.c                           | 11 ++++++++---
 .../perf/util/scripting-engines/trace-event-python.c  |  2 +-
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
index 50f916374d87..8f52e8cefcf3 100644
--- a/tools/perf/util/db-export.c
+++ b/tools/perf/util/db-export.c
@@ -181,7 +181,7 @@ static int db_ids_from_al(struct db_export *dbe, struct addr_location *al,
 	if (al->map) {
 		struct dso *dso = map__dso(al->map);
 
-		err = db_export__dso(dbe, dso, maps__machine(al->maps));
+		err = db_export__dso(dbe, dso, maps__machine(thread__maps(al->thread)));
 		if (err)
 			return err;
 		*dso_db_id = dso__db_id(dso);
@@ -256,6 +256,7 @@ static struct call_path *call_path_from_sample(struct db_export *dbe,
 		al.map = map__get(node->ms.map);
 		al.maps = maps__get(thread__maps(thread));
 		al.addr = node->ip;
+		al.thread = thread__get(thread);
 
 		if (al.map && !al.sym)
 			al.sym = dso__find_symbol(map__dso(al.map), al.addr);
@@ -358,14 +359,18 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
 	};
 	struct thread *main_thread;
 	struct comm *comm = NULL;
-	struct machine *machine;
+	struct machine *machine = NULL;
 	int err;
 
+	if (thread__maps(thread))
+		machine = maps__machine(thread__maps(thread));
+	if (!machine)
+		return -1;
+
 	err = db_export__evsel(dbe, evsel);
 	if (err)
 		return err;
 
-	machine = maps__machine(al->maps);
 	err = db_export__machine(dbe, machine);
 	if (err)
 		return err;
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 520729e78965..00f2c6c5114d 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1306,7 +1306,7 @@ static void python_export_sample_table(struct db_export *dbe,
 
 	tuple_set_d64(t, 0, es->db_id);
 	tuple_set_d64(t, 1, es->evsel->db_id);
-	tuple_set_d64(t, 2, maps__machine(es->al->maps)->db_id);
+	tuple_set_d64(t, 2, maps__machine(thread__maps(es->al->thread))->db_id);
 	tuple_set_d64(t, 3, thread__db_id(es->al->thread));
 	tuple_set_d64(t, 4, es->comm_db_id);
 	tuple_set_d64(t, 5, es->dso_db_id);

From 1190410772090a68995a758c979ba44b986e2df2 Mon Sep 17 00:00:00 2001
From: Yuzhuo Jing <yuzhuo@google.com>
Date: Wed, 4 Jun 2025 10:36:32 -0700
Subject: [PATCH 021/179] perf: Fix libjvmti.c sign compare error

Fix the compile errors when compiling with -Werror=sign-compare.

This is a follow-up patch to a previous patch series for a separate
issue.  Link: https://lore.kernel.org/lkml/aC9lXhPFcs5fkHWH@x1/

Signed-off-by: Yuzhuo Jing <yuzhuo@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250604173632.2362759-1-yuzhuo@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/jvmti/libjvmti.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/jvmti/libjvmti.c b/tools/perf/jvmti/libjvmti.c
index fcca275e5bf9..82514e6532b8 100644
--- a/tools/perf/jvmti/libjvmti.c
+++ b/tools/perf/jvmti/libjvmti.c
@@ -141,11 +141,11 @@ copy_class_filename(const char * class_sign, const char * file_name, char * resu
 	* Assume path name is class hierarchy, this is a common practice with Java programs
 	*/
 	if (*class_sign == 'L') {
-		int j, i = 0;
+		size_t j, i = 0;
 		char *p = strrchr(class_sign, '/');
 		if (p) {
 			/* drop the 'L' prefix and copy up to the final '/' */
-			for (i = 0; i < (p - class_sign); i++)
+			for (i = 0; i < (size_t)(p - class_sign); i++)
 				result[i] = class_sign[i+1];
 		}
 		/*

From ae0756933e879a703e1a5deb701d9ec88b032ba3 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 29 May 2025 12:22:06 -0700
Subject: [PATCH 022/179] perf thread: Ensure comm_lock held for comm_list

Add thread safety annotations for comm_list and add locking for two
instances where the list is accessed without the lock held (in
contradiction to ____thread__set_comm()).

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250529192206.971199-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/comm.c   |  2 ++
 tools/perf/util/thread.c | 26 ++++++++++++++++++++++----
 tools/perf/util/thread.h | 11 ++++++-----
 3 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c
index 8aa456d7c2cd..9880247a2c33 100644
--- a/tools/perf/util/comm.c
+++ b/tools/perf/util/comm.c
@@ -24,6 +24,7 @@ static struct comm_strs {
 static void comm_strs__remove_if_last(struct comm_str *cs);
 
 static void comm_strs__init(void)
+	NO_THREAD_SAFETY_ANALYSIS /* Inherently single threaded due to pthread_once. */
 {
 	init_rwsem(&_comm_strs.lock);
 	_comm_strs.capacity = 16;
@@ -119,6 +120,7 @@ static void comm_strs__remove_if_last(struct comm_str *cs)
 }
 
 static struct comm_str *__comm_strs__find(struct comm_strs *comm_strs, const char *str)
+	SHARED_LOCKS_REQUIRED(comm_strs->lock)
 {
 	struct comm_str **result;
 
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index ffb48cc2103f..aa9c58bbf9d3 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -41,6 +41,7 @@ int thread__init_maps(struct thread *thread, struct machine *machine)
 }
 
 struct thread *thread__new(pid_t pid, pid_t tid)
+	NO_THREAD_SAFETY_ANALYSIS /* Allocation/creation is inherently single threaded. */
 {
 	RC_STRUCT(thread) *_thread = zalloc(sizeof(*_thread));
 	struct thread *thread;
@@ -200,7 +201,8 @@ int thread__set_namespaces(struct thread *thread, u64 timestamp,
 	return ret;
 }
 
-struct comm *thread__comm(struct thread *thread)
+static struct comm *__thread__comm(struct thread *thread)
+	SHARED_LOCKS_REQUIRED(thread__comm_lock(thread))
 {
 	if (list_empty(thread__comm_list(thread)))
 		return NULL;
@@ -208,16 +210,30 @@ struct comm *thread__comm(struct thread *thread)
 	return list_first_entry(thread__comm_list(thread), struct comm, list);
 }
 
+struct comm *thread__comm(struct thread *thread)
+{
+	struct comm *res = NULL;
+
+	down_read(thread__comm_lock(thread));
+	res = __thread__comm(thread);
+	up_read(thread__comm_lock(thread));
+	return res;
+}
+
 struct comm *thread__exec_comm(struct thread *thread)
 {
 	struct comm *comm, *last = NULL, *second_last = NULL;
 
+	down_read(thread__comm_lock(thread));
 	list_for_each_entry(comm, thread__comm_list(thread), list) {
-		if (comm->exec)
+		if (comm->exec) {
+			up_read(thread__comm_lock(thread));
 			return comm;
+		}
 		second_last = last;
 		last = comm;
 	}
+	up_read(thread__comm_lock(thread));
 
 	/*
 	 * 'last' with no start time might be the parent's comm of a synthesized
@@ -233,8 +249,9 @@ struct comm *thread__exec_comm(struct thread *thread)
 
 static int ____thread__set_comm(struct thread *thread, const char *str,
 				u64 timestamp, bool exec)
+	EXCLUSIVE_LOCKS_REQUIRED(thread__comm_lock(thread))
 {
-	struct comm *new, *curr = thread__comm(thread);
+	struct comm *new, *curr = __thread__comm(thread);
 
 	/* Override the default :tid entry */
 	if (!thread__comm_set(thread)) {
@@ -285,8 +302,9 @@ int thread__set_comm_from_proc(struct thread *thread)
 }
 
 static const char *__thread__comm_str(struct thread *thread)
+	SHARED_LOCKS_REQUIRED(thread__comm_lock(thread))
 {
-	const struct comm *comm = thread__comm(thread);
+	const struct comm *comm = __thread__comm(thread);
 
 	if (!comm)
 		return NULL;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 2b90bbed7a61..310eaea344bb 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -236,16 +236,17 @@ static inline struct rw_semaphore *thread__namespaces_lock(struct thread *thread
 	return &RC_CHK_ACCESS(thread)->namespaces_lock;
 }
 
-static inline struct list_head *thread__comm_list(struct thread *thread)
-{
-	return &RC_CHK_ACCESS(thread)->comm_list;
-}
-
 static inline struct rw_semaphore *thread__comm_lock(struct thread *thread)
 {
 	return &RC_CHK_ACCESS(thread)->comm_lock;
 }
 
+static inline struct list_head *thread__comm_list(struct thread *thread)
+	SHARED_LOCKS_REQUIRED(thread__comm_lock(thread))
+{
+	return &RC_CHK_ACCESS(thread)->comm_list;
+}
+
 static inline u64 thread__db_id(const struct thread *thread)
 {
 	return RC_CHK_ACCESS(thread)->db_id;

From ce3d5af2a92bd6cd775ce819f5e83857e8a277fb Mon Sep 17 00:00:00 2001
From: "Kotaro, Tokai" <fj0635gf@aa.jp.fujitsu.com>
Date: Wed, 18 Jun 2025 15:35:42 +0900
Subject: [PATCH 023/179] perf vendor events arm64: Update FUJITSU-MONAKA pmu
 event

Update pmu events for FUJITSU-MONAKA.
And, also updated common-and-microarch.json.

FUJITSU-MONAKA PMU Events Specification v1.1 and Errata v1.0 URL:
https://github.com/fujitsu/FUJITSU-MONAKA

Arm Architecture Reference Version L.b URL:
https://developer.arm.com/documentation/ddi0487/lb/?lang=en

Signed-off-by: Kotaro, Tokai <fj0635gf@aa.jp.fujitsu.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250618063618.1244363-1-fj0635gf@aa.jp.fujitsu.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../arch/arm64/common-and-microarch.json      | 70 +++++++++++++
 .../arm64/fujitsu/monaka/core-imp-def.json    |  2 +-
 .../fujitsu/monaka/cycle_accounting.json      |  4 +-
 .../arch/arm64/fujitsu/monaka/exception.json  |  2 +-
 .../arm64/fujitsu/monaka/fp_operation.json    | 98 +++++++++++++++----
 .../arch/arm64/fujitsu/monaka/l1d_cache.json  | 10 +-
 .../arch/arm64/fujitsu/monaka/l1i_cache.json  |  8 +-
 .../arch/arm64/fujitsu/monaka/l2_cache.json   | 28 +++---
 .../arch/arm64/fujitsu/monaka/l3_cache.json   | 63 ++++++------
 .../arch/arm64/fujitsu/monaka/ll_cache.json   |  2 +-
 .../arch/arm64/fujitsu/monaka/pipeline.json   |  6 +-
 .../arm64/fujitsu/monaka/spec_operation.json  | 12 +--
 .../arch/arm64/fujitsu/monaka/stall.json      |  4 +-
 .../arch/arm64/fujitsu/monaka/sve.json        | 44 ++++-----
 .../arch/arm64/fujitsu/monaka/tlb.json        | 56 +++++------
 15 files changed, 265 insertions(+), 144 deletions(-)

diff --git a/tools/perf/pmu-events/arch/arm64/common-and-microarch.json b/tools/perf/pmu-events/arch/arm64/common-and-microarch.json
index e40be37addf8..2416d9f8a83d 100644
--- a/tools/perf/pmu-events/arch/arm64/common-and-microarch.json
+++ b/tools/perf/pmu-events/arch/arm64/common-and-microarch.json
@@ -1833,5 +1833,75 @@
         "EventCode": "0x8324",
         "EventName": "L1I_CACHE_REFILL_PERCYC",
         "BriefDescription": "Level 1 instruction or unified cache refills in progress."
+    },
+    {
+        "EventCode": "0x8431",
+        "EventName": "ASE_FP_VREDUCE_SPEC",
+        "BriefDescription": "Floating-point operation_speculatively_executed, Advanced SIMD pairwise or reduction."
+    },
+    {
+        "EventCode": "0x8432",
+        "EventName": "SVE_FP_PREDUCE_SPEC",
+        "BriefDescription": "Floating-point operation_speculatively_executed, Advanced SIMD pairwise add step or pairwise reduce step."
+    },
+    {
+        "EventCode": "0x8443",
+        "EventName": "ASE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "Advanced SIMD data processing operation speculatively_executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x8444",
+        "EventName": "ASE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "Advanced SIMD data processing operation speculatively_executed, smallest type is 8-bit floating-point."
+    },
+    {
+        "EventCode": "0x844B",
+        "EventName": "ASE_SVE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "Advanced SIMD data processing or SVE data processing operation speculatively_executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x844C",
+        "EventName": "ASE_SVE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "Advanced SIMD data processing or SVE data processing operation speculatively_executed, smallest type is 8-bit floating-point."
+    },
+    {
+        "EventCode": "0x8463",
+        "EventName": "SVE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "SVE data processing operation speculatively_executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x8464",
+        "EventName": "SVE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "SVE data processing operation speculatively_executed, smallest type is 8-bit floating-point."
+    },
+    {
+        "EventCode": "0x8473",
+        "EventName": "FP_BF16_MIN_SPEC",
+        "BriefDescription": "Floating-point operation speculatively_executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x8474",
+        "EventName": "FP_FP8_MIN_SPEC",
+        "BriefDescription": "Floating-point operation speculatively_executed, smallest type is 8-bit floating-point."
+    },
+    {
+        "EventCode": "0x8483",
+        "EventName": "FP_BF16_FIXED_MIN_OPS_SPEC",
+        "BriefDescription": "Non-scalable element arithmetic operations speculatively executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x8484",
+        "EventName": "FP_FP8_FIXED_MIN_OPS_SPEC",
+        "BriefDescription": "Non-scalable element arithmetic operations speculatively executed, smallest type is 8-bit floating-point."
+    },
+    {
+        "EventCode": "0x848B",
+        "EventName": "FP_BF16_SCALE_MIN_OPS_SPEC",
+        "BriefDescription": "Scalable element arithmetic operations speculatively executed, smallest type is BFloat16 floating-point."
+    },
+    {
+        "EventCode": "0x848C",
+        "EventName": "FP_FP8_SCALE_MIN_OPS_SPEC",
+        "BriefDescription": "Scalable element arithmetic operations speculatively executed, smallest type is 8-bit floating-point."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/core-imp-def.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/core-imp-def.json
index 52f5ca1482fe..57a854ff5033 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/core-imp-def.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/core-imp-def.json
@@ -1,6 +1,6 @@
 [
     {
         "ArchStdEvent": "L1I_CACHE_PRF",
-        "BriefDescription": "This event counts fetch counted by either Level 1 instruction hardware prefetch or Level 1 instruction software prefetch."
+        "BriefDescription": "This event counts L1I_CACHE caused by hardware prefetch or software prefetch."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/cycle_accounting.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/cycle_accounting.json
index 24ff5d8dbb98..84374adbb0f8 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/cycle_accounting.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/cycle_accounting.json
@@ -12,12 +12,12 @@
     {
         "EventCode": "0x0184",
         "EventName": "LD_COMP_WAIT",
-        "BriefDescription": "This event counts every cycle that no instruction was committed because the oldest and uncommitted load/store/prefetch operation waits for L1D cache, L2 cache and memory access."
+        "BriefDescription": "This event counts every cycle that no instruction was committed because the oldest and uncommitted load/store/prefetch operation waits for L1D cache, L2 cache, L3 cache and memory access."
     },
     {
         "EventCode": "0x0185",
         "EventName": "LD_COMP_WAIT_EX",
-        "BriefDescription": "This event counts every cycle that no instruction was committed because the oldest and uncommitted integer load operation waits for L1D cache, L2 cache and memory access."
+        "BriefDescription": "This event counts every cycle that no instruction was committed because the oldest and uncommitted integer load operation waits for L1D cache, L2 cache, L3 cache and memory access."
     },
     {
         "EventCode": "0x0186",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/exception.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/exception.json
index f231712fe261..fba66bbcfeb5 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/exception.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/exception.json
@@ -33,7 +33,7 @@
     },
     {
         "ArchStdEvent": "EXC_SMC",
-        "BriefDescription": "This event counts only Secure Monitor Call exceptions. The counter does not increment on SMC instructions trapped as a Hyp Trap exception."
+        "BriefDescription": "This event counts only Secure Monitor Call exceptions. This event does not increment on SMC instructions trapped as a Hyp Trap exception."
     },
     {
         "ArchStdEvent": "EXC_HVC",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/fp_operation.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/fp_operation.json
index a3c368959199..2ffdc16530dd 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/fp_operation.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/fp_operation.json
@@ -2,7 +2,7 @@
     {
         "EventCode": "0x0105",
         "EventName": "FP_MV_SPEC",
-        "BriefDescription": "This event counts architecturally executed floating-point move operations."
+        "BriefDescription": "This event counts architecturally executed floating-point move operation."
     },
     {
         "EventCode": "0x0112",
@@ -24,7 +24,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point operation."
     },
     {
         "ArchStdEvent": "FP_HP_SPEC",
@@ -40,7 +40,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_HP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE half-precision floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE half-precision floating-point operation."
     },
     {
         "ArchStdEvent": "FP_SP_SPEC",
@@ -56,7 +56,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_SP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE single-precision floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE single-precision floating-point operation."
     },
     {
         "ArchStdEvent": "FP_DP_SPEC",
@@ -72,7 +72,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_DP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE double-precision floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE double-precision floating-point operation."
     },
     {
         "ArchStdEvent": "FP_DIV_SPEC",
@@ -88,7 +88,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_DIV_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point divide operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point divide operation."
     },
     {
         "ArchStdEvent": "FP_SQRT_SPEC",
@@ -104,7 +104,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_SQRT_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point square root operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point square root operation."
     },
     {
         "ArchStdEvent": "ASE_FP_FMA_SPEC",
@@ -116,11 +116,11 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_FMA_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point FMA operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point FMA operation."
     },
     {
         "ArchStdEvent": "FP_MUL_SPEC",
-        "BriefDescription": "This event counts architecturally executed floating-point multiply operations."
+        "BriefDescription": "This event counts architecturally executed floating-point multiply operation."
     },
     {
         "ArchStdEvent": "ASE_FP_MUL_SPEC",
@@ -132,11 +132,11 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_MUL_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point multiply operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point multiply operation."
     },
     {
         "ArchStdEvent": "FP_ADDSUB_SPEC",
-        "BriefDescription": "This event counts architecturally executed floating-point add or subtract operations."
+        "BriefDescription": "This event counts architecturally executed floating-point add or subtract operation."
     },
     {
         "ArchStdEvent": "ASE_FP_ADDSUB_SPEC",
@@ -148,19 +148,19 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_ADDSUB_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point add or subtract operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point add or subtract operation."
     },
     {
         "ArchStdEvent": "ASE_FP_RECPE_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD floating-point reciprocal estimate operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD floating-point reciprocal estimate operation."
     },
     {
         "ArchStdEvent": "SVE_FP_RECPE_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE floating-point reciprocal estimate operations."
+        "BriefDescription": "This event counts architecturally executed SVE floating-point reciprocal estimate operation."
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_RECPE_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point reciprocal estimate operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point reciprocal estimate operation."
     },
     {
         "ArchStdEvent": "ASE_FP_CVT_SPEC",
@@ -172,15 +172,15 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_CVT_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point convert operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point convert operation."
     },
     {
         "ArchStdEvent": "SVE_FP_AREDUCE_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE floating-point accumulating reduction operations."
+        "BriefDescription": "This event counts architecturally executed SVE floating-point accumulating reduction operation."
     },
     {
         "ArchStdEvent": "ASE_FP_PREDUCE_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD floating-point pairwise add step operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD floating-point pairwise add step operation."
     },
     {
         "ArchStdEvent": "SVE_FP_VREDUCE_SPEC",
@@ -188,15 +188,15 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_VREDUCE_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE floating-point vector reduction operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE floating-point vector reduction operation."
     },
     {
         "ArchStdEvent": "FP_SCALE_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE arithmetic operations. See FP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by (128 / CSIZE) and by twice that amount for operations that would also be counted by SVE_FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed SVE arithmetic operation. See FP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by (128 / CSIZE) and by twice that amount for operations that would also be counted by SVE_FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_FIXED_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed v8SIMD&FP arithmetic operations. See FP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. The event counter is incremented by the specified number of elements for Advanced SIMD operations or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed v8SIMD&FP arithmetic operation. See FP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by the specified number of elements for Advanced SIMD operations or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "ASE_SVE_FP_DOT_SPEC",
@@ -205,5 +205,61 @@
     {
         "ArchStdEvent": "ASE_SVE_FP_MMLA_SPEC",
         "BriefDescription": "This event counts architecturally executed microarchitectural Advanced SIMD or SVE floating-point matrix multiply operation."
+    },
+    {
+        "ArchStdEvent": "ASE_FP_VREDUCE_SPEC",
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD floating-point vector reduction operation."
+    },
+    {
+        "ArchStdEvent": "SVE_FP_PREDUCE_SPEC",
+        "BriefDescription": "This event counts architecturally executed SVE floating-point pairwise add step operation."
+    },
+    {
+        "ArchStdEvent": "ASE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD data processing operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "ASE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD data processing operations, smallest type is 8-bit floating-point."
+    },
+    {
+        "ArchStdEvent": "ASE_SVE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD data processing or SVE data processing operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "ASE_SVE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD data processing or SVE data processing operations, smallest type is 8-bit floating-point."
+    },
+    {
+        "ArchStdEvent": "SVE_FP_BF16_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed SVE data processing operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "SVE_FP_FP8_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed SVE data processing operations, smallest type is 8-bit floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_BF16_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed data processing operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_FP8_MIN_SPEC",
+        "BriefDescription": "This event counts architecturally executed data processing operations, smallest type is 8-bit floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_BF16_FIXED_MIN_OPS_SPEC",
+        "BriefDescription": "This event counts architecturally executed non-scalable element arithmetic operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_FP8_FIXED_MIN_OPS_SPEC",
+        "BriefDescription": "This event counts architecturally executed non-scalable element arithmetic operations, smallest type is 8-bit floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_BF16_SCALE_MIN_OPS_SPEC",
+        "BriefDescription": "This event counts architecturally executed scalable element arithmetic operations, smallest type is BFloat16 floating-point."
+    },
+    {
+        "ArchStdEvent": "FP_FP8_SCALE_MIN_OPS_SPEC",
+        "BriefDescription": "This event counts architecturally executed scalable element arithmetic operations, smallest type is 8-bit floating-point."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1d_cache.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1d_cache.json
index b0818a2fedb0..a2ff3b49ac0d 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1d_cache.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1d_cache.json
@@ -72,11 +72,11 @@
     },
     {
         "ArchStdEvent": "L1D_CACHE_HWPRF",
-        "BriefDescription": "This event counts access counted by L1D_CACHE that is due to a hardware prefetch."
+        "BriefDescription": "This event counts L1D_CACHE caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L1D_CACHE_REFILL_HWPRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L1D_CACHE_HWPRF that causes a refill of the Level 1 data cache from outside of the Level 1 data cache."
+        "BriefDescription": "This event counts L1D_CACHE_REFILL caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L1D_CACHE_HIT_RD",
@@ -100,14 +100,14 @@
     },
     {
         "ArchStdEvent": "L1D_CACHE_PRF",
-        "BriefDescription": "This event counts fetch counted by either Level 1 data hardware prefetch or Level 1 data software prefetch."
+        "BriefDescription": "This event counts L1D_CACHE caused by hardware prefetch or software prefetch."
     },
     {
         "ArchStdEvent": "L1D_CACHE_REFILL_PRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L1D_CACHE_PRF that causes a refill of the Level 1 data cache from outside of the Level 1 data cache."
+        "BriefDescription": "This event counts L1D_CACHE_REFILL caused by hardware prefetch or software prefetch."
     },
     {
         "ArchStdEvent": "L1D_CACHE_REFILL_PERCYC",
-        "BriefDescription": "The counter counts by the number of cache refills counted by L1D_CACHE_REFILL in progress on each Processor cycle."
+        "BriefDescription": "This counter counts by the number of cache refills counted by L1D_CACHE_REFILL in progress on each Processor cycle."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1i_cache.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1i_cache.json
index 8680d8ec461d..5250af8631c0 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1i_cache.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l1i_cache.json
@@ -23,11 +23,11 @@
     },
     {
         "ArchStdEvent": "L1I_CACHE_HWPRF",
-        "BriefDescription": "This event counts access counted by L1I_CACHE that is due to a hardware prefetch."
+        "BriefDescription": "This event counts L1I_CACHE caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L1I_CACHE_REFILL_HWPRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L1I_CACHE_HWPRF that causes a refill of the Level 1 instruction cache from outside of the Level 1 instruction cache."
+        "BriefDescription": "This event counts L1I_CACHE_REFILL caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L1I_CACHE_HIT_RD",
@@ -43,10 +43,10 @@
     },
     {
         "ArchStdEvent": "L1I_CACHE_REFILL_PRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L1I_CACHE_PRF that causes a refill of the Level 1 instruction cache from outside of the Level 1 instruction cache."
+        "BriefDescription": "This event counts L1I_CACHE_REFILL caused by hardware prefetch or software prefetch."
     },
     {
         "ArchStdEvent": "L1I_CACHE_REFILL_PERCYC",
-        "BriefDescription": "The counter counts by the number of cache refills counted by L1I_CACHE_REFILL in progress on each Processor cycle."
+        "BriefDescription": "This counter counts by the number of cache refills counted by L1I_CACHE_REFILL in progress on each Processor cycle."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l2_cache.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l2_cache.json
index 9e092752e6db..67f9151d7685 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l2_cache.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l2_cache.json
@@ -21,19 +21,19 @@
     },
     {
         "ArchStdEvent": "L2D_CACHE_RD",
-        "BriefDescription": "This event counts L2D CACHE caused by read access."
+        "BriefDescription": "This event counts L2D_CACHE caused by read access."
     },
     {
         "ArchStdEvent": "L2D_CACHE_WR",
-        "BriefDescription": "This event counts L2D CACHE caused by write access."
+        "BriefDescription": "This event counts L2D_CACHE caused by write access."
     },
     {
         "ArchStdEvent": "L2D_CACHE_REFILL_RD",
-        "BriefDescription": "This event counts L2D CACHE_REFILL caused by read access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL caused by read access."
     },
     {
         "ArchStdEvent": "L2D_CACHE_REFILL_WR",
-        "BriefDescription": "This event counts L2D CACHE_REFILL caused by write access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL caused by write access."
     },
     {
         "ArchStdEvent": "L2D_CACHE_WB_VICTIM",
@@ -57,7 +57,7 @@
     {
         "EventCode": "0x0305",
         "EventName": "L2D_CACHE_HWPRF_ADJACENT",
-        "BriefDescription": "This event counts L2D_CACHE caused by hardware adjacent prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE caused by hardware adjacent prefetch."
     },
     {
         "EventCode": "0x0308",
@@ -111,7 +111,7 @@
     },
     {
         "ArchStdEvent": "L2D_CACHE_LMISS_RD",
-        "BriefDescription": "This event counts operations that cause a refill of the L2D cache that incurs additional latency."
+        "BriefDescription": "This event counts operations that cause a refill of the L2 cache that incurs additional latency."
     },
     {
         "ArchStdEvent": "L2D_CACHE_MISS",
@@ -119,23 +119,23 @@
     },
     {
         "ArchStdEvent": "L2D_CACHE_HWPRF",
-        "BriefDescription": "This event counts access counted by L2D_CACHE that is due to a hardware prefetch."
+        "BriefDescription": "This event counts L2D_CACHE caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L2D_CACHE_REFILL_HWPRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L2D_CACHE_HWPRF that causes a refill of the Level 2 cache, or any Level 1 data and instruction cache of this PE, from outside of those caches."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL caused by hardware prefetch."
     },
     {
         "ArchStdEvent": "L2D_CACHE_HIT_RD",
-        "BriefDescription": "This event counts demand read counted by L2D_CACHE_RD that hits in the Level 2 data cache."
+        "BriefDescription": "This event counts demand read counted by L2D_CACHE_RD that hits in the Level 2 cache."
     },
     {
         "ArchStdEvent": "L2D_CACHE_HIT_WR",
-        "BriefDescription": "This event counts demand write counted by L2D_CACHE_WR that hits in the Level 2 data cache."
+        "BriefDescription": "This event counts demand write counted by L2D_CACHE_WR that hits in the Level 2 cache."
     },
     {
         "ArchStdEvent": "L2D_CACHE_HIT",
-        "BriefDescription": "This event counts access counted by L2D_CACHE that hits in the Level 2 data cache."
+        "BriefDescription": "This event counts access counted by L2D_CACHE that hits in the Level 2 cache."
     },
     {
         "ArchStdEvent": "L2D_LFB_HIT_RD",
@@ -147,14 +147,14 @@
     },
     {
         "ArchStdEvent": "L2D_CACHE_PRF",
-        "BriefDescription": "This event counts fetch counted by either Level 2 data hardware prefetch or Level 2 data software prefetch."
+        "BriefDescription": "This event counts L2D_CACHE caused by hardware prefetch or software prefetch."
     },
     {
         "ArchStdEvent": "L2D_CACHE_REFILL_PRF",
-        "BriefDescription": "This event counts hardware prefetch counted by L2D_CACHE_PRF that causes a refill of the Level 2 data cache from outside of the Level 1 data cache."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL caused by hardware prefetch or software prefetch."
     },
     {
         "ArchStdEvent": "L2D_CACHE_REFILL_PERCYC",
-        "BriefDescription": "The counter counts by the number of cache refills counted by L2D_CACHE_REFILL in progress on each Processor cycle."
+        "BriefDescription": "This counter counts by the number of cache refills counted by L2D_CACHE_REFILL in progress on each Processor cycle."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l3_cache.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l3_cache.json
index 3f3e0d22ac68..cf49c4d452b7 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l3_cache.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/l3_cache.json
@@ -30,17 +30,17 @@
     {
         "EventCode": "0x0394",
         "EventName": "L2D_CACHE_REFILL_L3D_CACHE_PRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_CACHE caused by prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_CACHE caused by hardware prefetch or software prefetch."
     },
     {
         "EventCode": "0x0395",
         "EventName": "L2D_CACHE_REFILL_L3D_CACHE_HWPRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_CACHE caused by hardware prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_CACHE caused by hardware prefetch."
     },
     {
         "EventCode": "0x0396",
         "EventName": "L2D_CACHE_REFILL_L3D_MISS",
-        "BriefDescription": "This event counts operations that cause a miss of the L3 cache."
+        "BriefDescription": "This event counts operations that cause a miss of the L3 cache. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x0397",
@@ -60,17 +60,17 @@
     {
         "EventCode": "0x039A",
         "EventName": "L2D_CACHE_REFILL_L3D_MISS_PRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS caused by prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS caused by hardware prefetch or software prefetch. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x039B",
         "EventName": "L2D_CACHE_REFILL_L3D_MISS_HWPRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS caused by hardware prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS caused by hardware prefetch. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x039C",
         "EventName": "L2D_CACHE_REFILL_L3D_HIT",
-        "BriefDescription": "This event counts operations that cause a hit of the L3 cache."
+        "BriefDescription": "This event counts operations that cause a hit of the L3 cache. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x039D",
@@ -90,70 +90,65 @@
     {
         "EventCode": "0x03A0",
         "EventName": "L2D_CACHE_REFILL_L3D_HIT_PRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_HIT caused by prefetch access."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_HIT caused by hardware prefetch or software prefetch. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x03A1",
         "EventName": "L2D_CACHE_REFILL_L3D_HIT_HWPRF",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_HIT caused by hardware prefetch access."
-    },
-    {
-        "EventCode": "0x03A2",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests hit the PFTGT buffer."
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_HIT caused by hardware prefetch. Note: This event may count inaccurately."
     },
     {
         "EventCode": "0x03A3",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT_DM",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT caused by demand access."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_PFTGT_HIT",
+        "BriefDescription": "This event counts the number of L3 cache misses caused by demand access where the requests hit the PFTGT buffer."
     },
     {
         "EventCode": "0x03A4",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT_DM_RD",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT caused by demand read access."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_RD_PFTGT_HIT",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM_PFTGT_HIT caused by read access."
     },
     {
         "EventCode": "0x03A5",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT_DM_WR",
-        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_PFTGT_HIT caused by demand write access."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_WR_PFTGT_HIT",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM_PFTGT_HIT caused by write access."
     },
     {
         "EventCode": "0x03A6",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_L_MEM",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access the memory in the same socket as the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_L_MEM",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access the memory in the same socket as the requests."
     },
     {
         "EventCode": "0x03A7",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_FR_MEM",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access the memory in the different socket from the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_FR_MEM",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access the memory in the different socket from the requests."
     },
     {
         "EventCode": "0x03A8",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_L_L2",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access the different L2 cache from the requests in the same Numa nodes as the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_L_L2",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access the different L2 cache from the requests in the same Numa nodes as the requests."
     },
     {
         "EventCode": "0x03A9",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_NR_L2",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access L2 cache in the different Numa nodes from the requests in the same socket as the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_NR_L2",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access L2 cache in the different Numa nodes from the requests in the same socket as the requests."
     },
     {
         "EventCode": "0x03AA",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_NR_L3",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access L3 cache in the different Numa nodes from the requests in the same socket as the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_NR_L3",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access L3 cache in the different Numa nodes from the requests in the same socket as the requests."
     },
     {
         "EventCode": "0x03AB",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_FR_L2",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access L2 cache in the different socket from the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_FR_L2",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access L2 cache in the different socket from the requests."
     },
     {
         "EventCode": "0x03AC",
-        "EventName": "L2D_CACHE_REFILL_L3D_MISS_FR_L3",
-        "BriefDescription": "This event counts the number of L3 cache misses where the requests access L3 cache in the different socket from the requests."
+        "EventName": "L2D_CACHE_REFILL_L3D_MISS_DM_FR_L3",
+        "BriefDescription": "This event counts L2D_CACHE_REFILL_L3D_MISS_DM where the requests access L3 cache in the different socket from the requests."
     },
     {
         "ArchStdEvent": "L3D_CACHE_LMISS_RD",
-        "BriefDescription": "This event counts access counted by L3D_CACHE that is not completed by the L3D cache, and  a Memory-read operation, as defined by the L2D_CACHE_REFILL_L3D_MISS events."
+        "BriefDescription": "This event counts access counted by L3D_CACHE that is not completed by the L3 cache, and a Memory-read operation, as defined by the L2D_CACHE_REFILL_L3D_MISS events. Note: This event may count inaccurately."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/ll_cache.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/ll_cache.json
index a441b84729ab..d49d9f6df72c 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/ll_cache.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/ll_cache.json
@@ -5,6 +5,6 @@
     },
     {
         "ArchStdEvent": "LL_CACHE_MISS_RD",
-        "BriefDescription": "This event counts access counted by L3D_CACHE that is not completed by the L3D cache, and a Memory-read operation, as defined by the L2D_CACHE_REFILL_L3D_MISS events."
+        "BriefDescription": "This event counts access counted by L3D_CACHE that is not completed by the L3 cache, and a Memory-read operation, as defined by the L2D_CACHE_REFILL_L3D_MISS events. Note: This event may count inaccurately."
     }
 ]
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/pipeline.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/pipeline.json
index 3cc3105f4a5e..15cf54730b85 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/pipeline.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/pipeline.json
@@ -147,17 +147,17 @@
     {
         "EventCode": "0x02B0",
         "EventName": "L1_PIPE_COMP_GATHER_2FLOW",
-        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 2 flows because 2 elements could not be combined."
+        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 2-flows because 2 elements could not be combined."
     },
     {
         "EventCode": "0x02B1",
         "EventName": "L1_PIPE_COMP_GATHER_1FLOW",
-        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 1 flow because 2 elements could be combined."
+        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 1-flow because 2 elements could be combined."
     },
     {
         "EventCode": "0x02B2",
         "EventName": "L1_PIPE_COMP_GATHER_0FLOW",
-        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 0 flow because both predicate values are 0."
+        "BriefDescription": "This event counts the number of times where 2 elements of the gather instructions became 0-flow because both predicate values are 0."
     },
     {
         "EventCode": "0x02B3",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/spec_operation.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/spec_operation.json
index 4841b43e2871..1caf3baeae4e 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/spec_operation.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/spec_operation.json
@@ -81,7 +81,7 @@
     },
     {
         "ArchStdEvent": "CSDB_SPEC",
-        "BriefDescription": "This event counts speculatively executed control speculation barrier instructions."
+        "BriefDescription": "This event counts architecturally executed control speculation barrier instructions."
     },
     {
         "EventCode": "0x0108",
@@ -91,17 +91,17 @@
     {
         "EventCode": "0x0109",
         "EventName": "IEL_SPEC",
-        "BriefDescription": "This event counts architecturally executed inter-element manipulation operations."
+        "BriefDescription": "This event counts architecturally executed inter-element manipulation operation."
     },
     {
         "EventCode": "0x010A",
         "EventName": "IREG_SPEC",
-        "BriefDescription": "This event counts architecturally executed inter-register manipulation operations."
+        "BriefDescription": "This event counts architecturally executed inter-register manipulation operation."
     },
     {
         "EventCode": "0x011A",
         "EventName": "BC_LD_SPEC",
-        "BriefDescription": "This event counts architecturally executed SIMD broadcast floating-point load operations."
+        "BriefDescription": "This event counts architecturally executed SIMD broadcast floating-point load operation."
     },
     {
         "EventCode": "0x011B",
@@ -130,7 +130,7 @@
     },
     {
         "ArchStdEvent": "ASE_INST_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD operation."
     },
     {
         "ArchStdEvent": "INT_SPEC",
@@ -158,7 +158,7 @@
     },
     {
         "ArchStdEvent": "NONFP_SPEC",
-        "BriefDescription": "This event counts architecturally executed non-floating-point operations."
+        "BriefDescription": "This event counts architecturally executed non-floating-point operation."
     },
     {
         "ArchStdEvent": "INT_SCALE_OPS_SPEC",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/stall.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/stall.json
index 5fb81e2a0a07..e1e16d513828 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/stall.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/stall.json
@@ -5,7 +5,7 @@
     },
     {
         "ArchStdEvent": "STALL_BACKEND",
-        "BriefDescription": "This event counts every cycle counted by the CPU_CYCLES event on that no operation was issued because the backend is unable to accept any operations."
+        "BriefDescription": "This event counts every cycle counted by the CPU_CYCLES event on that no operation was issued because the backend is unable to accept any operation."
     },
     {
         "ArchStdEvent": "STALL",
@@ -69,7 +69,7 @@
     },
     {
         "ArchStdEvent": "STALL_BACKEND_L2D",
-        "BriefDescription": "This event counts every cycle counted by STALL_BACKEND_MEMBOUND when there is a demand data miss in L2D cache."
+        "BriefDescription": "This event counts every cycle counted by STALL_BACKEND_MEMBOUND when there is a demand data miss in L2 cache."
     },
     {
         "ArchStdEvent": "STALL_BACKEND_CPUBOUND",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/sve.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/sve.json
index e66b5af00f90..88cab0caf49e 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/sve.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/sve.json
@@ -13,11 +13,11 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_INST_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE operation."
     },
     {
         "ArchStdEvent": "UOP_SPEC",
-        "BriefDescription": "This event counts all architecturally executed micro-operations."
+        "BriefDescription": "This event counts all architecturally executed micro-operation."
     },
     {
         "ArchStdEvent": "SVE_MATH_SPEC",
@@ -29,7 +29,7 @@
     },
     {
         "ArchStdEvent": "FP_FMA_SPEC",
-        "BriefDescription": "This event counts architecturally executed floating-point fused multiply-add and multiply-subtract operations."
+        "BriefDescription": "This event counts architecturally executed floating-point fused multiply-add and multiply-subtract operation."
     },
     {
         "ArchStdEvent": "FP_RECPE_SPEC",
@@ -41,15 +41,15 @@
     },
     {
         "ArchStdEvent": "ASE_INT_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD integer operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD integer operation."
     },
     {
         "ArchStdEvent": "SVE_INT_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE integer operations."
+        "BriefDescription": "This event counts architecturally executed SVE integer operation."
     },
     {
         "ArchStdEvent": "ASE_SVE_INT_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE integer operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE integer operation."
     },
     {
         "ArchStdEvent": "SVE_INT_DIV_SPEC",
@@ -69,7 +69,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_INT_MUL_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE integer multiply operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE integer multiply operation."
     },
     {
         "ArchStdEvent": "SVE_INT_MUL64_SPEC",
@@ -77,19 +77,19 @@
     },
     {
         "ArchStdEvent": "SVE_INT_MULH64_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE integer 64-bit x 64-bit multiply returning high part operations."
+        "BriefDescription": "This event counts architecturally executed SVE integer 64-bit x 64-bit multiply returning high part operation."
     },
     {
         "ArchStdEvent": "ASE_NONFP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD non-floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD non-floating-point operation."
     },
     {
         "ArchStdEvent": "SVE_NONFP_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE non-floating-point operations."
+        "BriefDescription": "This event counts architecturally executed SVE non-floating-point operation."
     },
     {
         "ArchStdEvent": "ASE_SVE_NONFP_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE non-floating-point operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE non-floating-point operation."
     },
     {
         "ArchStdEvent": "ASE_INT_VREDUCE_SPEC",
@@ -101,7 +101,7 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_INT_VREDUCE_SPEC",
-        "BriefDescription": "This event counts architecturally executed Advanced SIMD and SVE integer reduction operations."
+        "BriefDescription": "This event counts architecturally executed Advanced SIMD or SVE integer reduction operation."
     },
     {
         "ArchStdEvent": "SVE_PERM_SPEC",
@@ -149,11 +149,11 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_LD_SPEC",
-        "BriefDescription": "This event counts architecturally executed operations that read from memory due to SVE and Advanced SIMD load instructions."
+        "BriefDescription": "This event counts architecturally executed operations that read from memory due to Advanced SIMD or SVE load instructions."
     },
     {
         "ArchStdEvent": "ASE_SVE_ST_SPEC",
-        "BriefDescription": "This event counts architecturally executed operations that write to memory due to SVE and Advanced SIMD store instructions."
+        "BriefDescription": "This event counts architecturally executed operations that write to memory due to Advanced SIMD or SVE store instructions."
     },
     {
         "ArchStdEvent": "PRF_SPEC",
@@ -197,11 +197,11 @@
     },
     {
         "ArchStdEvent": "ASE_SVE_LD_MULTI_SPEC",
-        "BriefDescription": "This event counts architecturally executed operations that read from memory due to SVE and Advanced SIMD multiple vector contiguous structure load instructions."
+        "BriefDescription": "This event counts architecturally executed operations that read from memory due to Advanced SIMD or SVE multiple vector contiguous structure load instructions."
     },
     {
         "ArchStdEvent": "ASE_SVE_ST_MULTI_SPEC",
-        "BriefDescription": "This event counts architecturally executed operations that write to memory due to SVE and Advanced SIMD multiple vector contiguous structure store instructions."
+        "BriefDescription": "This event counts architecturally executed operations that write to memory due to Advanced SIMD or SVE multiple vector contiguous structure store instructions."
     },
     {
         "ArchStdEvent": "SVE_LD_GATHER_SPEC",
@@ -221,27 +221,27 @@
     },
     {
         "ArchStdEvent": "FP_HP_SCALE_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE half-precision arithmetic operations. See FP_HP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 8, or by 16 for operations that would also be counted by SVE_FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed SVE half-precision arithmetic operation. See FP_HP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 8, or by 16 for operations that would also be counted by SVE_FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_HP_FIXED_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed v8SIMD&FP half-precision arithmetic operations. See FP_HP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by the number of 16-bit elements for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed v8SIMD&FP half-precision arithmetic operation. See FP_HP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by the number of 16-bit elements for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_SP_SCALE_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE single-precision arithmetic operations. See FP_SP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 4, or by 8 for operations that would also be counted by SVE_FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed SVE single-precision arithmetic operation. See FP_SP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 4, or by 8 for operations that would also be counted by SVE_FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_SP_FIXED_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed v8SIMD&FP single-precision arithmetic operations. See FP_SP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by the number of 32-bit elements for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed v8SIMD&FP single-precision arithmetic operation. See FP_SP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by the number of 32-bit elements for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_DP_SCALE_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed SVE double-precision arithmetic operations. See FP_DP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 2, or by 4 for operations that would also be counted by SVE_FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed SVE double-precision arithmetic operation. See FP_DP_SCALE_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 2, or by 4 for operations that would also be counted by SVE_FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "FP_DP_FIXED_OPS_SPEC",
-        "BriefDescription": "This event counts architecturally executed v8SIMD&FP double-precision arithmetic operations. See FP_DP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 2 for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
+        "BriefDescription": "This event counts architecturally executed v8SIMD&FP double-precision arithmetic operation. See FP_DP_FIXED_OPS_SPEC of ARMv9 Reference Manual for more information. This event counter is incremented by 2 for Advanced SIMD operations, or by 1 for scalar operations, and by twice those amounts for operations that would also be counted by FP_FMA_SPEC."
     },
     {
         "ArchStdEvent": "ASE_SVE_INT_DOT_SPEC",
diff --git a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/tlb.json b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/tlb.json
index edc7cb8696c8..f54029ba369a 100644
--- a/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/tlb.json
+++ b/tools/perf/pmu-events/arch/arm64/fujitsu/monaka/tlb.json
@@ -104,72 +104,72 @@
     {
         "EventCode": "0x0C10",
         "EventName": "L1I_TLB_REFILL_4K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 4KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 4KB page."
     },
     {
         "EventCode": "0x0C11",
         "EventName": "L1I_TLB_REFILL_64K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 64KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 64KB page."
     },
     {
         "EventCode": "0x0C12",
         "EventName": "L1I_TLB_REFILL_2M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 2MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 2MB page."
     },
     {
         "EventCode": "0x0C13",
         "EventName": "L1I_TLB_REFILL_32M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 32MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 32MB page."
     },
     {
         "EventCode": "0x0C14",
         "EventName": "L1I_TLB_REFILL_512M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 512MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 512MB page."
     },
     {
         "EventCode": "0x0C15",
         "EventName": "L1I_TLB_REFILL_1G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 1GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 1GB page."
     },
     {
         "EventCode": "0x0C16",
         "EventName": "L1I_TLB_REFILL_16G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1I in 16GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1I in 16GB page."
     },
     {
         "EventCode": "0x0C18",
         "EventName": "L1D_TLB_REFILL_4K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 4KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 4KB page."
     },
     {
         "EventCode": "0x0C19",
         "EventName": "L1D_TLB_REFILL_64K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 64KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 64KB page."
     },
     {
         "EventCode": "0x0C1A",
         "EventName": "L1D_TLB_REFILL_2M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 2MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 2MB page."
     },
     {
         "EventCode": "0x0C1B",
         "EventName": "L1D_TLB_REFILL_32M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 32MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 32MB page."
     },
     {
         "EventCode": "0x0C1C",
         "EventName": "L1D_TLB_REFILL_512M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 512MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 512MB page."
     },
     {
         "EventCode": "0x0C1D",
         "EventName": "L1D_TLB_REFILL_1G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 1GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 1GB page."
     },
     {
         "EventCode": "0x0C1E",
         "EventName": "L1D_TLB_REFILL_16G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L1D in 16GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L1D in 16GB page."
     },
     {
         "EventCode": "0x0C20",
@@ -244,72 +244,72 @@
     {
         "EventCode": "0x0C30",
         "EventName": "L2I_TLB_REFILL_4K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2Iin 4KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 4KB page."
     },
     {
         "EventCode": "0x0C31",
         "EventName": "L2I_TLB_REFILL_64K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 64KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 64KB page."
     },
     {
         "EventCode": "0x0C32",
         "EventName": "L2I_TLB_REFILL_2M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 2MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 2MB page."
     },
     {
         "EventCode": "0x0C33",
         "EventName": "L2I_TLB_REFILL_32M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 32MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 32MB page."
     },
     {
         "EventCode": "0x0C34",
         "EventName": "L2I_TLB_REFILL_512M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 512MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 512MB page."
     },
     {
         "EventCode": "0x0C35",
         "EventName": "L2I_TLB_REFILL_1G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 1GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 1GB page."
     },
     {
         "EventCode": "0x0C36",
         "EventName": "L2I_TLB_REFILL_16G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2I in 16GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2I in 16GB page."
     },
     {
         "EventCode": "0x0C38",
         "EventName": "L2D_TLB_REFILL_4K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 4KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 4KB page."
     },
     {
         "EventCode": "0x0C39",
         "EventName": "L2D_TLB_REFILL_64K",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 64KB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 64KB page."
     },
     {
         "EventCode": "0x0C3A",
         "EventName": "L2D_TLB_REFILL_2M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 2MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 2MB page."
     },
     {
         "EventCode": "0x0C3B",
         "EventName": "L2D_TLB_REFILL_32M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 32MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 32MB page."
     },
     {
         "EventCode": "0x0C3C",
         "EventName": "L2D_TLB_REFILL_512M",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 512MB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 512MB page."
     },
     {
         "EventCode": "0x0C3D",
         "EventName": "L2D_TLB_REFILL_1G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 1GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 1GB page."
     },
     {
         "EventCode": "0x0C3E",
         "EventName": "L2D_TLB_REFILL_16G",
-        "BriefDescription": "This event counts operations that cause a TLB refill to the L2D in 16GB page."
+        "BriefDescription": "This event counts operations that cause a TLB refill of the L2D in 16GB page."
     },
     {
         "ArchStdEvent": "DTLB_WALK_PERCYC",

From 588d22b40480bca9efdb6e24d253baaa5165884c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 13 Jun 2025 17:45:28 -0700
Subject: [PATCH 024/179] perf test: Expand user space event reading (rdpmc)
 tests

Test that disabling rdpmc support via /sys/bus/event_source/cpu*/rdpmc
disables reading in the mmap (libperf read support will fallback to
using a system call).
Test all hybrid PMUs support rdpmc.
Ensure hybrid PMUs use the correct CPU to rdpmc the correct
event. Previously the test would open cycles or instructions with no
extended type then rdpmc it on whatever CPU. This could fail/skip due
to which CPU the test was scheduled upon.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20250614004528.1652860-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/mmap-basic.c | 307 ++++++++++++++++++++++++----------
 tools/perf/tests/tests.h      |   9 +
 tools/perf/util/affinity.c    |  18 ++
 tools/perf/util/affinity.h    |   2 +
 4 files changed, 249 insertions(+), 87 deletions(-)

diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index 04b547c6bdbe..3c89d3001887 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -1,15 +1,18 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
+#include <fcntl.h>
 #include <inttypes.h>
 #include <stdlib.h>
 #include <perf/cpumap.h>
 
+#include "cpumap.h"
 #include "debug.h"
 #include "event.h"
 #include "evlist.h"
 #include "evsel.h"
 #include "thread_map.h"
 #include "tests.h"
+#include "util/affinity.h"
 #include "util/mmap.h"
 #include "util/sample.h"
 #include <linux/err.h>
@@ -172,99 +175,199 @@ static int test__basic_mmap(struct test_suite *test __maybe_unused, int subtest
 	return err;
 }
 
-static int test_stat_user_read(int event)
+enum user_read_state {
+	USER_READ_ENABLED,
+	USER_READ_DISABLED,
+	USER_READ_UNKNOWN,
+};
+
+static enum user_read_state set_user_read(struct perf_pmu *pmu, enum user_read_state enabled)
 {
-	struct perf_counts_values counts = { .val = 0 };
-	struct perf_thread_map *threads;
-	struct perf_evsel *evsel;
-	struct perf_event_mmap_page *pc;
-	struct perf_event_attr attr = {
-		.type	= PERF_TYPE_HARDWARE,
-		.config	= event,
-#ifdef __aarch64__
-		.config1 = 0x2,		/* Request user access */
-#endif
-	};
-	int err, i, ret = TEST_FAIL;
-	bool opened = false, mapped = false;
+	char buf[2] = {0, '\n'};
+	ssize_t len;
+	int events_fd, rdpmc_fd;
+	enum user_read_state old_user_read = USER_READ_UNKNOWN;
 
-	threads = perf_thread_map__new_dummy();
-	TEST_ASSERT_VAL("failed to create threads", threads);
+	if (enabled == USER_READ_UNKNOWN)
+		return USER_READ_UNKNOWN;
 
+	events_fd = perf_pmu__event_source_devices_fd();
+	if (events_fd < 0)
+		return USER_READ_UNKNOWN;
+
+	rdpmc_fd = perf_pmu__pathname_fd(events_fd, pmu->name, "rdpmc", O_RDWR);
+	if (rdpmc_fd < 0) {
+		close(events_fd);
+		return USER_READ_UNKNOWN;
+	}
+
+	len = read(rdpmc_fd, buf, sizeof(buf));
+	if (len != sizeof(buf))
+		pr_debug("%s read failed\n", __func__);
+
+	// Note, on Intel hybrid disabling on 1 PMU will implicitly disable on
+	// all the core PMUs.
+	old_user_read = (buf[0] == '1') ? USER_READ_ENABLED : USER_READ_DISABLED;
+
+	if (enabled != old_user_read) {
+		buf[0] = (enabled == USER_READ_ENABLED) ? '1' : '0';
+		len = write(rdpmc_fd, buf, sizeof(buf));
+		if (len != sizeof(buf))
+			pr_debug("%s write failed\n", __func__);
+	}
+	close(rdpmc_fd);
+	close(events_fd);
+	return old_user_read;
+}
+
+static int test_stat_user_read(u64 event, enum user_read_state enabled)
+{
+	struct perf_pmu *pmu = NULL;
+	struct perf_thread_map *threads = perf_thread_map__new_dummy();
+	int ret = TEST_OK;
+
+	pr_err("User space counter reading %" PRIu64 "\n", event);
+	if (!threads) {
+		pr_err("User space counter reading [Failed to create threads]\n");
+		return TEST_FAIL;
+	}
 	perf_thread_map__set_pid(threads, 0, 0);
 
-	evsel = perf_evsel__new(&attr);
-	TEST_ASSERT_VAL("failed to create evsel", evsel);
+	while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
+		enum user_read_state saved_user_read_state = set_user_read(pmu, enabled);
+		struct perf_event_attr attr = {
+			.type	= PERF_TYPE_HARDWARE,
+			.config	= perf_pmus__supports_extended_type()
+			? event | ((u64)pmu->type << PERF_PMU_TYPE_SHIFT)
+				: event,
+#ifdef __aarch64__
+			.config1 = 0x2,		/* Request user access */
+#endif
+		};
+		struct perf_evsel *evsel = NULL;
+		int err;
+		struct perf_event_mmap_page *pc;
+		bool mapped = false, opened = false, rdpmc_supported;
+		struct perf_counts_values counts = { .val = 0 };
 
-	err = perf_evsel__open(evsel, NULL, threads);
-	if (err) {
-		pr_err("failed to open evsel: %s\n", strerror(-err));
-		ret = TEST_SKIP;
-		goto out;
-	}
-	opened = true;
 
-	err = perf_evsel__mmap(evsel, 0);
-	if (err) {
-		pr_err("failed to mmap evsel: %s\n", strerror(-err));
-		goto out;
-	}
-	mapped = true;
+		pr_debug("User space counter reading for PMU %s\n", pmu->name);
+		/*
+		 * Restrict scheduling to only use the rdpmc on the CPUs the
+		 * event can be on. If the test doesn't run on the CPU of the
+		 * event then the event will be disabled and the pc->index test
+		 * will fail.
+		 */
+		if (pmu->cpus != NULL)
+			cpu_map__set_affinity(pmu->cpus);
 
-	pc = perf_evsel__mmap_base(evsel, 0, 0);
-	if (!pc) {
-		pr_err("failed to get mmapped address\n");
-		goto out;
-	}
-
-	if (!pc->cap_user_rdpmc || !pc->index) {
-		pr_err("userspace counter access not %s\n",
-			!pc->cap_user_rdpmc ? "supported" : "enabled");
-		ret = TEST_SKIP;
-		goto out;
-	}
-	if (pc->pmc_width < 32) {
-		pr_err("userspace counter width not set (%d)\n", pc->pmc_width);
-		goto out;
-	}
-
-	perf_evsel__read(evsel, 0, 0, &counts);
-	if (counts.val == 0) {
-		pr_err("failed to read value for evsel\n");
-		goto out;
-	}
-
-	for (i = 0; i < 5; i++) {
-		volatile int count = 0x10000 << i;
-		__u64 start, end, last = 0;
-
-		pr_debug("\tloop = %u, ", count);
-
-		perf_evsel__read(evsel, 0, 0, &counts);
-		start = counts.val;
-
-		while (count--) ;
-
-		perf_evsel__read(evsel, 0, 0, &counts);
-		end = counts.val;
-
-		if ((end - start) < last) {
-			pr_err("invalid counter data: end=%llu start=%llu last= %llu\n",
-				end, start, last);
-			goto out;
+		/* Make the evsel. */
+		evsel = perf_evsel__new(&attr);
+		if (!evsel) {
+			pr_err("User space counter reading for PMU %s [Failed to allocate evsel]\n",
+				pmu->name);
+			ret = TEST_FAIL;
+			goto cleanup;
 		}
-		last = end - start;
-		pr_debug("count = %llu\n", end - start);
+
+		err = perf_evsel__open(evsel, NULL, threads);
+		if (err) {
+			pr_err("User space counter reading for PMU %s [Failed to open evsel]\n",
+				pmu->name);
+			ret = TEST_SKIP;
+			goto cleanup;
+		}
+		opened = true;
+		err = perf_evsel__mmap(evsel, 0);
+		if (err) {
+			pr_err("User space counter reading for PMU %s [Failed to mmap evsel]\n",
+				pmu->name);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+		mapped = true;
+
+		pc = perf_evsel__mmap_base(evsel, 0, 0);
+		if (!pc) {
+			pr_err("User space counter reading for PMU %s [Failed to get mmaped address]\n",
+				pmu->name);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+
+		if (saved_user_read_state == USER_READ_UNKNOWN)
+			rdpmc_supported = pc->cap_user_rdpmc && pc->index;
+		else
+			rdpmc_supported = (enabled == USER_READ_ENABLED);
+
+		if (rdpmc_supported && (!pc->cap_user_rdpmc || !pc->index)) {
+			pr_err("User space counter reading for PMU %s [Failed unexpected supported counter access %d %d]\n",
+				pmu->name, pc->cap_user_rdpmc, pc->index);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+
+		if (!rdpmc_supported && pc->cap_user_rdpmc) {
+			pr_err("User space counter reading for PMU %s [Failed unexpected unsupported counter access %d]\n",
+				pmu->name, pc->cap_user_rdpmc);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+
+		if (rdpmc_supported && pc->pmc_width < 32) {
+			pr_err("User space counter reading for PMU %s [Failed width not set %d]\n",
+				pmu->name, pc->pmc_width);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+
+		perf_evsel__read(evsel, 0, 0, &counts);
+		if (counts.val == 0) {
+			pr_err("User space counter reading for PMU %s [Failed read]\n", pmu->name);
+			ret = TEST_FAIL;
+			goto cleanup;
+		}
+
+		for (int i = 0; i < 5; i++) {
+			volatile int count = 0x10000 << i;
+			__u64 start, end, last = 0;
+
+			pr_debug("\tloop = %u, ", count);
+
+			perf_evsel__read(evsel, 0, 0, &counts);
+			start = counts.val;
+
+			while (count--) ;
+
+			perf_evsel__read(evsel, 0, 0, &counts);
+			end = counts.val;
+
+			if ((end - start) < last) {
+				pr_err("User space counter reading for PMU %s [Failed invalid counter data: end=%llu start=%llu last= %llu]\n",
+					pmu->name, end, start, last);
+				ret = TEST_FAIL;
+				goto cleanup;
+			}
+			last = end - start;
+			pr_debug("count = %llu\n", last);
+		}
+		pr_debug("User space counter reading for PMU %s [Success]\n", pmu->name);
+cleanup:
+		if (mapped)
+			perf_evsel__munmap(evsel);
+		if (opened)
+			perf_evsel__close(evsel);
+		perf_evsel__delete(evsel);
+
+		/* If the affinity was changed, then put it back to all CPUs. */
+		if (pmu->cpus != NULL) {
+			struct perf_cpu_map *cpus = cpu_map__online();
+
+			cpu_map__set_affinity(cpus);
+			perf_cpu_map__put(cpus);
+		}
+		set_user_read(pmu, saved_user_read_state);
 	}
-	ret = TEST_OK;
-
-out:
-	if (mapped)
-		perf_evsel__munmap(evsel);
-	if (opened)
-		perf_evsel__close(evsel);
-	perf_evsel__delete(evsel);
-
 	perf_thread_map__put(threads);
 	return ret;
 }
@@ -272,20 +375,32 @@ static int test_stat_user_read(int event)
 static int test__mmap_user_read_instr(struct test_suite *test __maybe_unused,
 				      int subtest __maybe_unused)
 {
-	return test_stat_user_read(PERF_COUNT_HW_INSTRUCTIONS);
+	return test_stat_user_read(PERF_COUNT_HW_INSTRUCTIONS, USER_READ_ENABLED);
 }
 
 static int test__mmap_user_read_cycles(struct test_suite *test __maybe_unused,
 				       int subtest __maybe_unused)
 {
-	return test_stat_user_read(PERF_COUNT_HW_CPU_CYCLES);
+	return test_stat_user_read(PERF_COUNT_HW_CPU_CYCLES, USER_READ_ENABLED);
+}
+
+static int test__mmap_user_read_instr_disabled(struct test_suite *test __maybe_unused,
+					       int subtest __maybe_unused)
+{
+	return test_stat_user_read(PERF_COUNT_HW_INSTRUCTIONS, USER_READ_DISABLED);
+}
+
+static int test__mmap_user_read_cycles_disabled(struct test_suite *test __maybe_unused,
+						int subtest __maybe_unused)
+{
+	return test_stat_user_read(PERF_COUNT_HW_CPU_CYCLES, USER_READ_DISABLED);
 }
 
 static struct test_case tests__basic_mmap[] = {
 	TEST_CASE_REASON("Read samples using the mmap interface",
 			 basic_mmap,
 			 "permissions"),
-	TEST_CASE_REASON("User space counter reading of instructions",
+	TEST_CASE_REASON_EXCLUSIVE("User space counter reading of instructions",
 			 mmap_user_read_instr,
 #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
 			 (defined(__riscv) && __riscv_xlen == 64)
@@ -294,13 +409,31 @@ static struct test_case tests__basic_mmap[] = {
 			 "unsupported"
 #endif
 		),
-	TEST_CASE_REASON("User space counter reading of cycles",
+	TEST_CASE_REASON_EXCLUSIVE("User space counter reading of cycles",
 			 mmap_user_read_cycles,
 #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
 			 (defined(__riscv) && __riscv_xlen == 64)
 			 "permissions"
 #else
 			 "unsupported"
+#endif
+		),
+	TEST_CASE_REASON_EXCLUSIVE("User space counter disabling instructions",
+			 mmap_user_read_instr_disabled,
+#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
+			 (defined(__riscv) && __riscv_xlen == 64)
+			 "permissions"
+#else
+			 "unsupported"
+#endif
+		),
+	TEST_CASE_REASON_EXCLUSIVE("User space counter disabling cycles",
+			 mmap_user_read_cycles_disabled,
+#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || \
+			 (defined(__riscv) && __riscv_xlen == 64)
+			 "permissions"
+#else
+			 "unsupported"
 #endif
 		),
 	{	.name = NULL, }
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index bb7951c61971..4c128a959441 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -71,6 +71,15 @@ struct test_suite {
 		.exclusive = true,			\
 	}
 
+#define TEST_CASE_REASON_EXCLUSIVE(description, _name, _reason)	\
+	{						\
+		.name = #_name,				\
+		.desc = description,			\
+		.run_case = test__##_name,		\
+		.skip_reason = _reason,			\
+		.exclusive = true,			\
+	}
+
 #define DEFINE_SUITE(description, _name)		\
 	struct test_case tests__##_name[] = {           \
 		TEST_CASE(description, _name),		\
diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c
index 38dc4524b7e8..4fe851334296 100644
--- a/tools/perf/util/affinity.c
+++ b/tools/perf/util/affinity.c
@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <linux/bitmap.h>
 #include <linux/zalloc.h>
+#include <perf/cpumap.h>
 #include "perf.h"
 #include "cpumap.h"
 #include "affinity.h"
@@ -83,3 +84,20 @@ void affinity__cleanup(struct affinity *a)
 	if (a != NULL)
 		__affinity__cleanup(a);
 }
+
+void cpu_map__set_affinity(const struct perf_cpu_map *cpumap)
+{
+	int cpu_set_size = get_cpu_set_size();
+	unsigned long *cpuset = bitmap_zalloc(cpu_set_size * 8);
+	struct perf_cpu cpu;
+	int idx;
+
+	if (!cpuset)
+		return;
+
+	perf_cpu_map__for_each_cpu_skip_any(cpu, idx, cpumap)
+		__set_bit(cpu.cpu, cpuset);
+
+	sched_setaffinity(0, cpu_set_size, (cpu_set_t *)cpuset);
+	zfree(&cpuset);
+}
diff --git a/tools/perf/util/affinity.h b/tools/perf/util/affinity.h
index 0ad6a18ef20c..7341194b2298 100644
--- a/tools/perf/util/affinity.h
+++ b/tools/perf/util/affinity.h
@@ -4,6 +4,7 @@
 
 #include <stdbool.h>
 
+struct perf_cpu_map;
 struct affinity {
 	unsigned long *orig_cpus;
 	unsigned long *sched_cpus;
@@ -13,5 +14,6 @@ struct affinity {
 void affinity__cleanup(struct affinity *a);
 void affinity__set(struct affinity *a, int cpu);
 int affinity__setup(struct affinity *a);
+void cpu_map__set_affinity(const struct perf_cpu_map *cpumap);
 
 #endif // PERF_AFFINITY_H

From dcbe6e51a0bb80a40f9a8c87750c291c2364573d Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Fri, 6 Jun 2025 15:54:31 -0700
Subject: [PATCH 025/179] perf parse-events: Set default GH modifier properly

Commit 7b100989b4f6bce7 ("perf evlist: Remove __evlist__add_default")
changed to use "cycles:P" as a default event.  But the problem is it
cannot set other default modifiers correctly.

perf kvm needs to set attr.exclude_host by default but it didn't work
because of the logic in the parse_events__modifier_list().  Also the
exclude_GH_default was applied only if ":u" modifier was specified -
which is strange.  Move it out after handling the ":GH" and check
perf_host and perf_guest properly.

Before:
  $ ./perf kvm record -vv true |& grep exclude
  (nothing)

But specifying an event (without a modifier) works:

  $ ./perf kvm record -vv -e cycles true |& grep exclude
    exclude_host                     1

After:
It now works for the both cases:

  $ ./perf kvm record -vv true |& grep exclude
    exclude_host                     1

  $ ./perf kvm record -vv -e cycles true |& grep exclude
    exclude_host                     1

Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250606225431.2109754-1-namhyung@kernel.org
Fixes: 35c8d21371e9b342 ("perf tools: Don't set attr.exclude_guest by default")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 7f34e602fc08..d1965a7b97ed 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1830,13 +1830,11 @@ static int parse_events__modifier_list(struct parse_events_state *parse_state,
 		int eH = group ? evsel->core.attr.exclude_host : 0;
 		int eG = group ? evsel->core.attr.exclude_guest : 0;
 		int exclude = eu | ek | eh;
-		int exclude_GH = group ? evsel->exclude_GH : 0;
+		int exclude_GH = eG | eH;
 
 		if (mod.user) {
 			if (!exclude)
 				exclude = eu = ek = eh = 1;
-			if (!exclude_GH && !perf_guest && exclude_GH_default)
-				eG = 1;
 			eu = 0;
 		}
 		if (mod.kernel) {
@@ -1859,6 +1857,13 @@ static int parse_events__modifier_list(struct parse_events_state *parse_state,
 				exclude_GH = eG = eH = 1;
 			eH = 0;
 		}
+		if (!exclude_GH && exclude_GH_default) {
+			if (perf_host)
+				eG = 1;
+			else if (perf_guest)
+				eH = 1;
+		}
+
 		evsel->core.attr.exclude_user   = eu;
 		evsel->core.attr.exclude_kernel = ek;
 		evsel->core.attr.exclude_hv     = eh;

From 2d584688643fac90428ab12513e05d6deff7c606 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 18 Jun 2025 17:25:55 -0700
Subject: [PATCH 026/179] perf test: Add header shell test

Add a shell test that sanity checks perf data and pipe mode produce
expected header fields.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250619002555.100896-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/header.sh | 74 ++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100755 tools/perf/tests/shell/header.sh

diff --git a/tools/perf/tests/shell/header.sh b/tools/perf/tests/shell/header.sh
new file mode 100755
index 000000000000..813831cff0bd
--- /dev/null
+++ b/tools/perf/tests/shell/header.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+# perf header tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+err=0
+perfdata=$(mktemp /tmp/__perf_test_header.perf.data.XXXXX)
+script_output=$(mktemp /tmp/__perf_test_header.perf.data.XXXXX.script)
+
+cleanup() {
+  rm -f "${perfdata}"
+  rm -f "${perfdata}".old
+  rm -f "${script_output}"
+
+  trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+  echo "Unexpected signal in ${FUNCNAME[1]}"
+  cleanup
+  exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+check_header_output() {
+  declare -a fields=(
+    "captured"
+    "hostname"
+    "os release"
+    "arch"
+    "cpuid"
+    "nrcpus"
+    "event"
+    "cmdline"
+    "perf version"
+    "sibling (cores|dies|threads)"
+    "sibling threads"
+    "total memory"
+  )
+  for i in "${fields[@]}"
+  do
+    if ! grep -q -E "$i" "${script_output}"
+    then
+      echo "Failed to find expect $i in output"
+      err=1
+    fi
+  done
+}
+
+test_file() {
+  echo "Test perf header file"
+
+  perf record -o "${perfdata}" -g -- perf test -w noploop
+  perf report --header-only -I -i "${perfdata}" > "${script_output}"
+  check_header_output
+
+  echo "Test perf header file [Done]"
+}
+
+test_pipe() {
+  echo "Test perf header pipe"
+
+  perf record -o - -g -- perf test -w noploop | perf report --header-only -I -i - > "${script_output}"
+  check_header_output
+
+  echo "Test perf header pipe [Done]"
+}
+
+test_file
+test_pipe
+
+cleanup
+exit $err

From 13b38e6b8059de096ebddb5d770c2419943949b7 Mon Sep 17 00:00:00 2001
From: Anubhav Shelat <ashelat@redhat.com>
Date: Wed, 18 Jun 2025 10:29:22 -0400
Subject: [PATCH 027/179] perf header: remove unecessary core id test

It is possible for systems to have a greater socket id number than the
number of cpus present on a machine, so this test is obselete and should
be removed.

Signed-off-by: Anubhav Shelat <ashelat@redhat.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250618142921.4053400-2-ashelat@redhat.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index e3cdc3b7b4ab..d7f6ff6974aa 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2559,7 +2559,6 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 	int cpu_nr = ff->ph->env.nr_cpus_avail;
 	u64 size = 0;
 	struct perf_header *ph = ff->ph;
-	bool do_core_id_test = true;
 
 	ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
 	if (!ph->env.cpu)
@@ -2614,15 +2613,6 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		return 0;
 	}
 
-	/* On s390 the socket_id number is not related to the numbers of cpus.
-	 * The socket_id number might be higher than the numbers of cpus.
-	 * This depends on the configuration.
-	 * AArch64 is the same.
-	 */
-	if (ph->env.arch && (!strncmp(ph->env.arch, "s390", 4)
-			  || !strncmp(ph->env.arch, "aarch64", 7)))
-		do_core_id_test = false;
-
 	for (i = 0; i < (u32)cpu_nr; i++) {
 		if (do_read_u32(ff, &nr))
 			goto free_cpu;
@@ -2633,12 +2623,6 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		if (do_core_id_test && nr != (u32)-1 && nr > (u32)cpu_nr) {
-			pr_debug("socket_id number is too big."
-				 "You may need to upgrade the perf tool.\n");
-			goto free_cpu;
-		}
-
 		ph->env.cpu[i].socket_id = nr;
 		size += sizeof(u32);
 	}

From 1d0654b7fdc5431b85035f6e76b4bc57679575d8 Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Thu, 12 Jun 2025 12:49:35 -0700
Subject: [PATCH 028/179] perf build: detect support for libbpf's emit_strings
 option

This creates a config option that detects libbpf's ability to display
character arrays as strings, which was just added to the BPF tree
(https://git.kernel.org/bpf/bpf-next/c/87c9c79a02b4).

To test this change, I built perf (from later in this patch set) with:

 - static libbpf (default, using source from kernel tree)
 - dynamic libbpf (LIBBPF_DYNAMIC=1 LIBBPF_INCLUDE=/usr/local/include)

For both the static and dynamic versions, I used headers with and without
the ".emit_strings" option.

I verified that of the four resulting binaries, the two with
".emit_strings" would successfully record BPF_METADATA events, and the two
without wouldn't.  All four binaries would successfully display
BPF_METADATA events, because the relevant bit of libbpf code is only used
during "perf record".

Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-2-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/build/Makefile.feature              |  1 +
 tools/build/feature/Makefile              |  4 ++++
 tools/build/feature/test-libbpf-strings.c | 10 ++++++++++
 tools/perf/Documentation/perf-check.txt   |  1 +
 tools/perf/Makefile.config                |  8 ++++++++
 tools/perf/builtin-check.c                |  1 +
 6 files changed, 25 insertions(+)
 create mode 100644 tools/build/feature/test-libbpf-strings.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 3a1fddd38db0..2e5f4c8b6547 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -126,6 +126,7 @@ FEATURE_TESTS_EXTRA :=                  \
          llvm                           \
          clang                          \
          libbpf                         \
+         libbpf-strings                 \
          libpfm4                        \
          libdebuginfod			\
          clang-bpf-co-re		\
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 4aa166d3eab6..0c4e541ed56e 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -59,6 +59,7 @@ FILES=                                          \
          test-lzma.bin                          \
          test-bpf.bin                           \
          test-libbpf.bin                        \
+         test-libbpf-strings.bin                \
          test-get_cpuid.bin                     \
          test-sdt.bin                           \
          test-cxx.bin                           \
@@ -339,6 +340,9 @@ $(OUTPUT)test-bpf.bin:
 $(OUTPUT)test-libbpf.bin:
 	$(BUILD) -lbpf
 
+$(OUTPUT)test-libbpf-strings.bin:
+	$(BUILD)
+
 $(OUTPUT)test-sdt.bin:
 	$(BUILD)
 
diff --git a/tools/build/feature/test-libbpf-strings.c b/tools/build/feature/test-libbpf-strings.c
new file mode 100644
index 000000000000..83e6c45f5c85
--- /dev/null
+++ b/tools/build/feature/test-libbpf-strings.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <bpf/btf.h>
+
+int main(void)
+{
+	struct btf_dump_type_data_opts opts;
+
+	opts.emit_strings = 0;
+	return opts.emit_strings;
+}
diff --git a/tools/perf/Documentation/perf-check.txt b/tools/perf/Documentation/perf-check.txt
index a764a4629220..799982d8d868 100644
--- a/tools/perf/Documentation/perf-check.txt
+++ b/tools/perf/Documentation/perf-check.txt
@@ -52,6 +52,7 @@ feature::
                 dwarf-unwind            /  HAVE_DWARF_UNWIND_SUPPORT
                 auxtrace                /  HAVE_AUXTRACE_SUPPORT
                 libbfd                  /  HAVE_LIBBFD_SUPPORT
+                libbpf-strings          /  HAVE_LIBBPF_STRINGS_SUPPORT
                 libcapstone             /  HAVE_LIBCAPSTONE_SUPPORT
                 libcrypto               /  HAVE_LIBCRYPTO_SUPPORT
                 libdw-dwarf-unwind      /  HAVE_LIBDW_SUPPORT
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index d1ea7bf44964..affe5e173920 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -595,8 +595,16 @@ ifndef NO_LIBELF
           LIBBPF_STATIC := 1
           $(call detected,CONFIG_LIBBPF)
           CFLAGS += -DHAVE_LIBBPF_SUPPORT
+	  LIBBPF_INCLUDE = $(LIBBPF_DIR)/..
         endif
       endif
+
+      FEATURE_CHECK_CFLAGS-libbpf-strings="-I$(LIBBPF_INCLUDE)"
+      $(call feature_check,libbpf-strings)
+      ifeq ($(feature-libbpf-strings), 1)
+        $(call detected,CONFIG_LIBBPF_STRINGS)
+        CFLAGS += -DHAVE_LIBBPF_STRINGS_SUPPORT
+      endif
     endif
   endif # NO_LIBBPF
 endif # NO_LIBELF
diff --git a/tools/perf/builtin-check.c b/tools/perf/builtin-check.c
index 9a509cb3bb9a..f4827f0ddb47 100644
--- a/tools/perf/builtin-check.c
+++ b/tools/perf/builtin-check.c
@@ -43,6 +43,7 @@ struct feature_status supported_features[] = {
 	FEATURE_STATUS("dwarf-unwind", HAVE_DWARF_UNWIND_SUPPORT),
 	FEATURE_STATUS("auxtrace", HAVE_AUXTRACE_SUPPORT),
 	FEATURE_STATUS_TIP("libbfd", HAVE_LIBBFD_SUPPORT, "Deprecated, license incompatibility, use BUILD_NONDISTRO=1 and install binutils-dev[el]"),
+	FEATURE_STATUS("libbpf-strings", HAVE_LIBBPF_STRINGS_SUPPORT),
 	FEATURE_STATUS("libcapstone", HAVE_LIBCAPSTONE_SUPPORT),
 	FEATURE_STATUS("libcrypto", HAVE_LIBCRYPTO_SUPPORT),
 	FEATURE_STATUS("libdw-dwarf-unwind", HAVE_LIBDW_SUPPORT),

From ab38e84ba9a80581e055408e0f8c0158998fa4b9 Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Thu, 12 Jun 2025 12:49:36 -0700
Subject: [PATCH 029/179] perf record: collect BPF metadata from existing BPF
 programs

Look for .rodata maps, find ones with 'bpf_metadata_' variables, extract
their values as strings, and create a new PERF_RECORD_BPF_METADATA
synthetic event using that data. The code gets invoked from the existing
routine perf_event__synthesize_one_bpf_prog().

For example, a BPF program with the following variables:

    const char bpf_metadata_version[] SEC(".rodata") = "3.14159";
    int bpf_metadata_value[] SEC(".rodata") = 42;

would generate a PERF_RECORD_BPF_METADATA record with:

    .prog_name        = <BPF program name, e.g. "bpf_prog_a1b2c3_foo">
    .nr_entries       = 2
    .entries[0].key   = "version"
    .entries[0].value = "3.14159"
    .entries[1].key   = "value"
    .entries[1].value = "42"

Each of the BPF programs and subprograms that share those variables would
get a distinct PERF_RECORD_BPF_METADATA record, with the ".prog_name"
showing the name of each program or subprogram. The prog_name is
deliberately the same as the ".name" field in the corresponding
PERF_RECORD_KSYMBOL record.

This code only gets invoked if support for displaying BTF char arrays
as strings is detected.

Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-3-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/perf/include/perf/event.h |  18 ++
 tools/perf/util/bpf-event.c         | 332 ++++++++++++++++++++++++++++
 tools/perf/util/bpf-event.h         |  12 +
 3 files changed, 362 insertions(+)

diff --git a/tools/lib/perf/include/perf/event.h b/tools/lib/perf/include/perf/event.h
index 09b7c643ddac..6608f1e3701b 100644
--- a/tools/lib/perf/include/perf/event.h
+++ b/tools/lib/perf/include/perf/event.h
@@ -467,6 +467,22 @@ struct perf_record_compressed2 {
 	char			 data[];
 };
 
+#define BPF_METADATA_KEY_LEN   64
+#define BPF_METADATA_VALUE_LEN 256
+#define BPF_PROG_NAME_LEN      KSYM_NAME_LEN
+
+struct perf_record_bpf_metadata_entry {
+	char key[BPF_METADATA_KEY_LEN];
+	char value[BPF_METADATA_VALUE_LEN];
+};
+
+struct perf_record_bpf_metadata {
+	struct perf_event_header	      header;
+	char				      prog_name[BPF_PROG_NAME_LEN];
+	__u64				      nr_entries;
+	struct perf_record_bpf_metadata_entry entries[];
+};
+
 enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_USER_TYPE_START		= 64,
 	PERF_RECORD_HEADER_ATTR			= 64,
@@ -489,6 +505,7 @@ enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_COMPRESSED			= 81,
 	PERF_RECORD_FINISHED_INIT		= 82,
 	PERF_RECORD_COMPRESSED2			= 83,
+	PERF_RECORD_BPF_METADATA		= 84,
 	PERF_RECORD_HEADER_MAX
 };
 
@@ -530,6 +547,7 @@ union perf_event {
 	struct perf_record_header_feature	feat;
 	struct perf_record_compressed		pack;
 	struct perf_record_compressed2		pack2;
+	struct perf_record_bpf_metadata		bpf_metadata;
 };
 
 #endif /* __LIBPERF_EVENT_H */
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index c81444059ad0..1f6e76ee6024 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -1,13 +1,21 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <bpf/bpf.h>
 #include <bpf/btf.h>
 #include <bpf/libbpf.h>
+#include <linux/bpf.h>
 #include <linux/btf.h>
 #include <linux/err.h>
+#include <linux/perf_event.h>
 #include <linux/string.h>
+#include <linux/zalloc.h>
 #include <internal/lib.h>
+#include <perf/event.h>
 #include <symbol/kallsyms.h>
 #include "bpf-event.h"
 #include "bpf-utils.h"
@@ -151,6 +159,319 @@ static int synthesize_bpf_prog_name(char *buf, int size,
 	return name_len;
 }
 
+#ifdef HAVE_LIBBPF_STRINGS_SUPPORT
+
+#define BPF_METADATA_PREFIX "bpf_metadata_"
+#define BPF_METADATA_PREFIX_LEN (sizeof(BPF_METADATA_PREFIX) - 1)
+
+static bool name_has_bpf_metadata_prefix(const char **s)
+{
+	if (strncmp(*s, BPF_METADATA_PREFIX, BPF_METADATA_PREFIX_LEN) != 0)
+		return false;
+	*s += BPF_METADATA_PREFIX_LEN;
+	return true;
+}
+
+struct bpf_metadata_map {
+	struct btf *btf;
+	const struct btf_type *datasec;
+	void *rodata;
+	size_t rodata_size;
+	unsigned int num_vars;
+};
+
+static int bpf_metadata_read_map_data(__u32 map_id, struct bpf_metadata_map *map)
+{
+	int map_fd;
+	struct bpf_map_info map_info;
+	__u32 map_info_len;
+	int key;
+	struct btf *btf;
+	const struct btf_type *datasec;
+	struct btf_var_secinfo *vsi;
+	unsigned int vlen, vars;
+	void *rodata;
+
+	map_fd = bpf_map_get_fd_by_id(map_id);
+	if (map_fd < 0)
+		return -1;
+
+	memset(&map_info, 0, sizeof(map_info));
+	map_info_len = sizeof(map_info);
+	if (bpf_obj_get_info_by_fd(map_fd, &map_info, &map_info_len) < 0)
+		goto out_close;
+
+	/* If it's not an .rodata map, don't bother. */
+	if (map_info.type != BPF_MAP_TYPE_ARRAY ||
+	    map_info.key_size != sizeof(int) ||
+	    map_info.max_entries != 1 ||
+	    !map_info.btf_value_type_id ||
+	    !strstr(map_info.name, ".rodata")) {
+		goto out_close;
+	}
+
+	btf = btf__load_from_kernel_by_id(map_info.btf_id);
+	if (!btf)
+		goto out_close;
+	datasec = btf__type_by_id(btf, map_info.btf_value_type_id);
+	if (!btf_is_datasec(datasec))
+		goto out_free_btf;
+
+	/*
+	 * If there aren't any variables with the "bpf_metadata_" prefix,
+	 * don't bother.
+	 */
+	vlen = btf_vlen(datasec);
+	vsi = btf_var_secinfos(datasec);
+	vars = 0;
+	for (unsigned int i = 0; i < vlen; i++, vsi++) {
+		const struct btf_type *t_var = btf__type_by_id(btf, vsi->type);
+		const char *name = btf__name_by_offset(btf, t_var->name_off);
+
+		if (name_has_bpf_metadata_prefix(&name))
+			vars++;
+	}
+	if (vars == 0)
+		goto out_free_btf;
+
+	rodata = zalloc(map_info.value_size);
+	if (!rodata)
+		goto out_free_btf;
+	key = 0;
+	if (bpf_map_lookup_elem(map_fd, &key, rodata)) {
+		free(rodata);
+		goto out_free_btf;
+	}
+	close(map_fd);
+
+	map->btf = btf;
+	map->datasec = datasec;
+	map->rodata = rodata;
+	map->rodata_size = map_info.value_size;
+	map->num_vars = vars;
+	return 0;
+
+out_free_btf:
+	btf__free(btf);
+out_close:
+	close(map_fd);
+	return -1;
+}
+
+struct format_btf_ctx {
+	char *buf;
+	size_t buf_size;
+	size_t buf_idx;
+};
+
+static void format_btf_cb(void *arg, const char *fmt, va_list ap)
+{
+	int n;
+	struct format_btf_ctx *ctx = (struct format_btf_ctx *)arg;
+
+	n = vsnprintf(ctx->buf + ctx->buf_idx, ctx->buf_size - ctx->buf_idx,
+		      fmt, ap);
+	ctx->buf_idx += n;
+	if (ctx->buf_idx >= ctx->buf_size)
+		ctx->buf_idx = ctx->buf_size;
+}
+
+static void format_btf_variable(struct btf *btf, char *buf, size_t buf_size,
+				const struct btf_type *t, const void *btf_data)
+{
+	struct format_btf_ctx ctx = {
+		.buf = buf,
+		.buf_idx = 0,
+		.buf_size = buf_size,
+	};
+	const struct btf_dump_type_data_opts opts = {
+		.sz = sizeof(struct btf_dump_type_data_opts),
+		.skip_names = 1,
+		.compact = 1,
+		.emit_strings = 1,
+	};
+	struct btf_dump *d;
+	size_t btf_size;
+
+	d = btf_dump__new(btf, format_btf_cb, &ctx, NULL);
+	btf_size = btf__resolve_size(btf, t->type);
+	btf_dump__dump_type_data(d, t->type, btf_data, btf_size, &opts);
+	btf_dump__free(d);
+}
+
+static void bpf_metadata_fill_event(struct bpf_metadata_map *map,
+				    struct perf_record_bpf_metadata *bpf_metadata_event)
+{
+	struct btf_var_secinfo *vsi;
+	unsigned int i, vlen;
+
+	memset(bpf_metadata_event->prog_name, 0, BPF_PROG_NAME_LEN);
+	vlen = btf_vlen(map->datasec);
+	vsi = btf_var_secinfos(map->datasec);
+
+	for (i = 0; i < vlen; i++, vsi++) {
+		const struct btf_type *t_var = btf__type_by_id(map->btf,
+							       vsi->type);
+		const char *name = btf__name_by_offset(map->btf,
+						       t_var->name_off);
+		const __u64 nr_entries = bpf_metadata_event->nr_entries;
+		struct perf_record_bpf_metadata_entry *entry;
+
+		if (!name_has_bpf_metadata_prefix(&name))
+			continue;
+
+		if (nr_entries >= (__u64)map->num_vars)
+			break;
+
+		entry = &bpf_metadata_event->entries[nr_entries];
+		memset(entry, 0, sizeof(*entry));
+		snprintf(entry->key, BPF_METADATA_KEY_LEN, "%s", name);
+		format_btf_variable(map->btf, entry->value,
+				    BPF_METADATA_VALUE_LEN, t_var,
+				    map->rodata + vsi->offset);
+		bpf_metadata_event->nr_entries++;
+	}
+}
+
+static void bpf_metadata_free_map_data(struct bpf_metadata_map *map)
+{
+	btf__free(map->btf);
+	free(map->rodata);
+}
+
+static struct bpf_metadata *bpf_metadata_alloc(__u32 nr_prog_tags,
+					       __u32 nr_variables)
+{
+	struct bpf_metadata *metadata;
+	size_t event_size;
+
+	metadata = zalloc(sizeof(struct bpf_metadata));
+	if (!metadata)
+		return NULL;
+
+	metadata->prog_names = zalloc(nr_prog_tags * sizeof(char *));
+	if (!metadata->prog_names) {
+		bpf_metadata_free(metadata);
+		return NULL;
+	}
+	for (__u32 prog_index = 0; prog_index < nr_prog_tags; prog_index++) {
+		metadata->prog_names[prog_index] = zalloc(BPF_PROG_NAME_LEN);
+		if (!metadata->prog_names[prog_index]) {
+			bpf_metadata_free(metadata);
+			return NULL;
+		}
+		metadata->nr_prog_names++;
+	}
+
+	event_size = sizeof(metadata->event->bpf_metadata) +
+	    nr_variables * sizeof(metadata->event->bpf_metadata.entries[0]);
+	metadata->event = zalloc(event_size);
+	if (!metadata->event) {
+		bpf_metadata_free(metadata);
+		return NULL;
+	}
+	metadata->event->bpf_metadata = (struct perf_record_bpf_metadata) {
+		.header = {
+			.type = PERF_RECORD_BPF_METADATA,
+			.size = event_size,
+		},
+		.nr_entries = 0,
+	};
+
+	return metadata;
+}
+
+static struct bpf_metadata *bpf_metadata_create(struct bpf_prog_info *info)
+{
+	struct bpf_metadata *metadata;
+	const __u32 *map_ids = (__u32 *)(uintptr_t)info->map_ids;
+
+	for (__u32 map_index = 0; map_index < info->nr_map_ids; map_index++) {
+		struct bpf_metadata_map map;
+
+		if (bpf_metadata_read_map_data(map_ids[map_index], &map) != 0)
+			continue;
+
+		metadata = bpf_metadata_alloc(info->nr_prog_tags, map.num_vars);
+		if (!metadata)
+			continue;
+
+		bpf_metadata_fill_event(&map, &metadata->event->bpf_metadata);
+
+		for (__u32 index = 0; index < info->nr_prog_tags; index++) {
+			synthesize_bpf_prog_name(metadata->prog_names[index],
+						 BPF_PROG_NAME_LEN, info,
+						 map.btf, index);
+		}
+
+		bpf_metadata_free_map_data(&map);
+
+		return metadata;
+	}
+
+	return NULL;
+}
+
+static int synthesize_perf_record_bpf_metadata(const struct bpf_metadata *metadata,
+					       const struct perf_tool *tool,
+					       perf_event__handler_t process,
+					       struct machine *machine)
+{
+	const size_t event_size = metadata->event->header.size;
+	union perf_event *event;
+	int err = 0;
+
+	event = zalloc(event_size + machine->id_hdr_size);
+	if (!event)
+		return -1;
+	memcpy(event, metadata->event, event_size);
+	memset((void *)event + event->header.size, 0, machine->id_hdr_size);
+	event->header.size += machine->id_hdr_size;
+	for (__u32 index = 0; index < metadata->nr_prog_names; index++) {
+		memcpy(event->bpf_metadata.prog_name,
+		       metadata->prog_names[index], BPF_PROG_NAME_LEN);
+		err = perf_tool__process_synth_event(tool, event, machine,
+						     process);
+		if (err != 0)
+			break;
+	}
+
+	free(event);
+	return err;
+}
+
+void bpf_metadata_free(struct bpf_metadata *metadata)
+{
+	if (metadata == NULL)
+		return;
+	for (__u32 index = 0; index < metadata->nr_prog_names; index++)
+		free(metadata->prog_names[index]);
+	free(metadata->prog_names);
+	free(metadata->event);
+	free(metadata);
+}
+
+#else /* HAVE_LIBBPF_STRINGS_SUPPORT */
+
+static struct bpf_metadata *bpf_metadata_create(struct bpf_prog_info *info __maybe_unused)
+{
+	return NULL;
+}
+
+static int synthesize_perf_record_bpf_metadata(const struct bpf_metadata *metadata __maybe_unused,
+					       const struct perf_tool *tool __maybe_unused,
+					       perf_event__handler_t process __maybe_unused,
+					       struct machine *machine __maybe_unused)
+{
+	return 0;
+}
+
+void bpf_metadata_free(struct bpf_metadata *metadata __maybe_unused)
+{
+}
+
+#endif /* HAVE_LIBBPF_STRINGS_SUPPORT */
+
 /*
  * Synthesize PERF_RECORD_KSYMBOL and PERF_RECORD_BPF_EVENT for one bpf
  * program. One PERF_RECORD_BPF_EVENT is generated for the program. And
@@ -173,6 +494,7 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 	const struct perf_tool *tool = session->tool;
 	struct bpf_prog_info_node *info_node;
 	struct perf_bpil *info_linear;
+	struct bpf_metadata *metadata;
 	struct bpf_prog_info *info;
 	struct btf *btf = NULL;
 	struct perf_env *env;
@@ -193,6 +515,7 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 	arrays |= 1UL << PERF_BPIL_JITED_INSNS;
 	arrays |= 1UL << PERF_BPIL_LINE_INFO;
 	arrays |= 1UL << PERF_BPIL_JITED_LINE_INFO;
+	arrays |= 1UL << PERF_BPIL_MAP_IDS;
 
 	info_linear = get_bpf_prog_info_linear(fd, arrays);
 	if (IS_ERR_OR_NULL(info_linear)) {
@@ -301,6 +624,15 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 		 */
 		err = perf_tool__process_synth_event(tool, event,
 						     machine, process);
+
+		/* Synthesize PERF_RECORD_BPF_METADATA */
+		metadata = bpf_metadata_create(info);
+		if (metadata != NULL) {
+			err = synthesize_perf_record_bpf_metadata(metadata,
+								  tool, process,
+								  machine);
+			bpf_metadata_free(metadata);
+		}
 	}
 
 out:
diff --git a/tools/perf/util/bpf-event.h b/tools/perf/util/bpf-event.h
index e2f0420905f5..ef2dd3f1619e 100644
--- a/tools/perf/util/bpf-event.h
+++ b/tools/perf/util/bpf-event.h
@@ -17,6 +17,12 @@ struct record_opts;
 struct evlist;
 struct target;
 
+struct bpf_metadata {
+	union perf_event *event;
+	char		 **prog_names;
+	__u64		 nr_prog_names;
+};
+
 struct bpf_prog_info_node {
 	struct perf_bpil		*info_linear;
 	struct rb_node			rb_node;
@@ -36,6 +42,7 @@ int evlist__add_bpf_sb_event(struct evlist *evlist, struct perf_env *env);
 void __bpf_event__print_bpf_prog_info(struct bpf_prog_info *info,
 				      struct perf_env *env,
 				      FILE *fp);
+void bpf_metadata_free(struct bpf_metadata *metadata);
 #else
 static inline int machine__process_bpf(struct machine *machine __maybe_unused,
 				       union perf_event *event __maybe_unused,
@@ -55,6 +62,11 @@ static inline void __bpf_event__print_bpf_prog_info(struct bpf_prog_info *info _
 						    FILE *fp __maybe_unused)
 {
 
+}
+
+static inline void bpf_metadata_free(struct bpf_metadata *metadata __maybe_unused)
+{
+
 }
 #endif // HAVE_LIBBPF_SUPPORT
 #endif

From fdc3441f2d317b40ace0936ee040a6c895d60014 Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Thu, 12 Jun 2025 12:49:37 -0700
Subject: [PATCH 030/179] perf record: collect BPF metadata from new programs

This collects metadata for any BPF programs that were loaded during a
"perf record" run, and emits it at the end of the run.

Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-4-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-record.c        | 10 +++++++
 tools/perf/util/bpf-event.c        | 46 ++++++++++++++++++++++++++++++
 tools/perf/util/bpf-event.h        |  1 +
 tools/perf/util/env.c              | 19 +++++++++++-
 tools/perf/util/env.h              |  6 ++++
 tools/perf/util/header.c           |  1 +
 tools/perf/util/synthetic-events.h |  2 ++
 7 files changed, 84 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0b566f300569..53971b9de3ba 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2162,6 +2162,14 @@ static int record__synthesize(struct record *rec, bool tail)
 	return err;
 }
 
+static void record__synthesize_final_bpf_metadata(struct record *rec __maybe_unused)
+{
+#ifdef HAVE_LIBBPF_SUPPORT
+	perf_event__synthesize_final_bpf_metadata(rec->session,
+						  process_synthesized_event);
+#endif
+}
+
 static int record__process_signal_event(union perf_event *event __maybe_unused, void *data)
 {
 	struct record *rec = data;
@@ -2807,6 +2815,8 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	trigger_off(&auxtrace_snapshot_trigger);
 	trigger_off(&switch_output_trigger);
 
+	record__synthesize_final_bpf_metadata(rec);
+
 	if (opts->auxtrace_snapshot_on_exit)
 		record__auxtrace_snapshot_exit(rec);
 
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index 1f6e76ee6024..dc09a4730c50 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -472,6 +472,49 @@ void bpf_metadata_free(struct bpf_metadata *metadata __maybe_unused)
 
 #endif /* HAVE_LIBBPF_STRINGS_SUPPORT */
 
+struct bpf_metadata_final_ctx {
+	const struct perf_tool *tool;
+	perf_event__handler_t process;
+	struct machine *machine;
+};
+
+static void synthesize_final_bpf_metadata_cb(struct bpf_prog_info_node *node,
+					     void *data)
+{
+	struct bpf_metadata_final_ctx *ctx = (struct bpf_metadata_final_ctx *)data;
+	struct bpf_metadata *metadata = node->metadata;
+	int err;
+
+	if (metadata == NULL)
+		return;
+	err = synthesize_perf_record_bpf_metadata(metadata, ctx->tool,
+						  ctx->process, ctx->machine);
+	if (err != 0) {
+		const char *prog_name = metadata->prog_names[0];
+
+		if (prog_name != NULL)
+			pr_warning("Couldn't synthesize final BPF metadata for %s.\n", prog_name);
+		else
+			pr_warning("Couldn't synthesize final BPF metadata.\n");
+	}
+	bpf_metadata_free(metadata);
+	node->metadata = NULL;
+}
+
+void perf_event__synthesize_final_bpf_metadata(struct perf_session *session,
+					       perf_event__handler_t process)
+{
+	struct perf_env *env = &session->header.env;
+	struct bpf_metadata_final_ctx ctx = {
+		.tool = session->tool,
+		.process = process,
+		.machine = &session->machines.host,
+	};
+
+	perf_env__iterate_bpf_prog_info(env, synthesize_final_bpf_metadata_cb,
+					&ctx);
+}
+
 /*
  * Synthesize PERF_RECORD_KSYMBOL and PERF_RECORD_BPF_EVENT for one bpf
  * program. One PERF_RECORD_BPF_EVENT is generated for the program. And
@@ -612,6 +655,7 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 		}
 
 		info_node->info_linear = info_linear;
+		info_node->metadata = NULL;
 		if (!perf_env__insert_bpf_prog_info(env, info_node)) {
 			free(info_linear);
 			free(info_node);
@@ -803,6 +847,7 @@ static void perf_env__add_bpf_info(struct perf_env *env, u32 id)
 	arrays |= 1UL << PERF_BPIL_JITED_INSNS;
 	arrays |= 1UL << PERF_BPIL_LINE_INFO;
 	arrays |= 1UL << PERF_BPIL_JITED_LINE_INFO;
+	arrays |= 1UL << PERF_BPIL_MAP_IDS;
 
 	info_linear = get_bpf_prog_info_linear(fd, arrays);
 	if (IS_ERR_OR_NULL(info_linear)) {
@@ -815,6 +860,7 @@ static void perf_env__add_bpf_info(struct perf_env *env, u32 id)
 	info_node = malloc(sizeof(struct bpf_prog_info_node));
 	if (info_node) {
 		info_node->info_linear = info_linear;
+		info_node->metadata = bpf_metadata_create(&info_linear->info);
 		if (!perf_env__insert_bpf_prog_info(env, info_node)) {
 			free(info_linear);
 			free(info_node);
diff --git a/tools/perf/util/bpf-event.h b/tools/perf/util/bpf-event.h
index ef2dd3f1619e..60d2c6637af5 100644
--- a/tools/perf/util/bpf-event.h
+++ b/tools/perf/util/bpf-event.h
@@ -25,6 +25,7 @@ struct bpf_metadata {
 
 struct bpf_prog_info_node {
 	struct perf_bpil		*info_linear;
+	struct bpf_metadata		*metadata;
 	struct rb_node			rb_node;
 };
 
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 36411749e007..05a4f2657d72 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -3,8 +3,10 @@
 #include "debug.h"
 #include "env.h"
 #include "util/header.h"
-#include "linux/compiler.h"
+#include "util/rwsem.h"
+#include <linux/compiler.h>
 #include <linux/ctype.h>
+#include <linux/rbtree.h>
 #include <linux/string.h>
 #include <linux/zalloc.h>
 #include "cgroup.h"
@@ -89,6 +91,20 @@ struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 	return node;
 }
 
+void perf_env__iterate_bpf_prog_info(struct perf_env *env,
+				     void (*cb)(struct bpf_prog_info_node *node,
+						void *data),
+				     void *data)
+{
+	struct rb_node *first;
+
+	down_read(&env->bpf_progs.lock);
+	first = rb_first(&env->bpf_progs.infos);
+	for (struct rb_node *node = first; node != NULL; node = rb_next(node))
+		(*cb)(rb_entry(node, struct bpf_prog_info_node, rb_node), data);
+	up_read(&env->bpf_progs.lock);
+}
+
 bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
 {
 	bool ret;
@@ -174,6 +190,7 @@ static void perf_env__purge_bpf(struct perf_env *env)
 		next = rb_next(&node->rb_node);
 		rb_erase(&node->rb_node, root);
 		zfree(&node->info_linear);
+		bpf_metadata_free(node->metadata);
 		free(node);
 	}
 
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index d90e343cf1fa..c90c1d717e73 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -174,16 +174,22 @@ const char *perf_env__raw_arch(struct perf_env *env);
 int perf_env__nr_cpus_avail(struct perf_env *env);
 
 void perf_env__init(struct perf_env *env);
+#ifdef HAVE_LIBBPF_SUPPORT
 bool __perf_env__insert_bpf_prog_info(struct perf_env *env,
 				      struct bpf_prog_info_node *info_node);
 bool perf_env__insert_bpf_prog_info(struct perf_env *env,
 				    struct bpf_prog_info_node *info_node);
 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 							__u32 prog_id);
+void perf_env__iterate_bpf_prog_info(struct perf_env *env,
+				     void (*cb)(struct bpf_prog_info_node *node,
+						void *data),
+				     void *data);
 bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 bool __perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
 struct btf_node *__perf_env__find_btf(struct perf_env *env, __u32 btf_id);
+#endif // HAVE_LIBBPF_SUPPORT
 
 int perf_env__numa_node(struct perf_env *env, struct perf_cpu cpu);
 char *perf_env__find_pmu_cap(struct perf_env *env, const char *pmu_name,
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index d7f6ff6974aa..2dea35237e81 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -3145,6 +3145,7 @@ static int process_bpf_prog_info(struct feat_fd *ff, void *data __maybe_unused)
 		/* after reading from file, translate offset to address */
 		bpil_offs_to_addr(info_linear);
 		info_node->info_linear = info_linear;
+		info_node->metadata = NULL;
 		if (!__perf_env__insert_bpf_prog_info(env, info_node)) {
 			free(info_linear);
 			free(info_node);
diff --git a/tools/perf/util/synthetic-events.h b/tools/perf/util/synthetic-events.h
index b9c936b5cfeb..ee29615d68e5 100644
--- a/tools/perf/util/synthetic-events.h
+++ b/tools/perf/util/synthetic-events.h
@@ -92,6 +92,8 @@ int perf_event__synthesize_threads(const struct perf_tool *tool, perf_event__han
 int perf_event__synthesize_tracing_data(const struct perf_tool *tool, int fd, struct evlist *evlist, perf_event__handler_t process);
 int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc, const struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
 pid_t perf_event__synthesize_comm(const struct perf_tool *tool, union perf_event *event, pid_t pid, perf_event__handler_t process, struct machine *machine);
+void perf_event__synthesize_final_bpf_metadata(struct perf_session *session,
+					       perf_event__handler_t process);
 
 int perf_tool__process_synth_event(const struct perf_tool *tool, union perf_event *event, struct machine *machine, perf_event__handler_t process);
 

From f19860ea9477f5ac33775cc0a602c7d54188c00a Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Thu, 12 Jun 2025 12:49:38 -0700
Subject: [PATCH 031/179] perf tools: display the new PERF_RECORD_BPF_METADATA
 event

Here's some example "perf script -D" output for the new event type. The
": unhandled!" message is from tool.c, analogous to other behavior there.
I've elided some rows with all NUL characters for brevity, and I wrapped
one of the >75-column lines to fit in the commit guidelines.

0x50fc8@perf.data [0x260]: event: 84
.
. ... raw event: size 608 bytes
.  0000:  54 00 00 00 00 00 60 02 62 70 66 5f 70 72 6f 67  T.....`.bpf_prog
.  0010:  5f 31 65 30 61 32 65 33 36 36 65 35 36 66 31 61  _1e0a2e366e56f1a
.  0020:  32 5f 70 65 72 66 5f 73 61 6d 70 6c 65 5f 66 69  2_perf_sample_fi
.  0030:  6c 74 65 72 00 00 00 00 00 00 00 00 00 00 00 00  lter............
.  0040:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
[...]
.  0110:  74 65 73 74 5f 76 61 6c 75 65 00 00 00 00 00 00  test_value......
.  0120:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
[...]
.  0150:  34 32 00 00 00 00 00 00 00 00 00 00 00 00 00 00  42..............
.  0160:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
[...]

0 0x50fc8 [0x260]: PERF_RECORD_BPF_METADATA \
      prog bpf_prog_1e0a2e366e56f1a2_perf_sample_filter
  entry 0:           test_value = 42
: unhandled!

Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-5-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-inject.c |  1 +
 tools/perf/builtin-script.c | 15 +++++++++++++--
 tools/perf/util/event.c     | 21 +++++++++++++++++++++
 tools/perf/util/event.h     |  1 +
 tools/perf/util/session.c   |  4 ++++
 tools/perf/util/tool.c      | 14 ++++++++++++++
 tools/perf/util/tool.h      |  3 ++-
 7 files changed, 56 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 11e49cafa3af..b15eac0716f7 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -2530,6 +2530,7 @@ int cmd_inject(int argc, const char **argv)
 	inject.tool.finished_init	= perf_event__repipe_op2_synth;
 	inject.tool.compressed		= perf_event__repipe_op4_synth;
 	inject.tool.auxtrace		= perf_event__repipe_auxtrace;
+	inject.tool.bpf_metadata	= perf_event__repipe_op2_synth;
 	inject.tool.dont_split_sample_group = true;
 	inject.session = __perf_session__new(&data, &inject.tool,
 					     /*trace_event_repipe=*/inject.output.is_pipe);
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 6c3bf74dd78c..4001e621b6cb 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -38,6 +38,7 @@
 #include "print_insn.h"
 #include "archinsn.h"
 #include <linux/bitmap.h>
+#include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/stringify.h>
 #include <linux/time64.h>
@@ -50,6 +51,7 @@
 #include <errno.h>
 #include <inttypes.h>
 #include <signal.h>
+#include <stdio.h>
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -2755,6 +2757,14 @@ process_bpf_events(const struct perf_tool *tool __maybe_unused,
 			   sample->tid);
 }
 
+static int
+process_bpf_metadata_event(struct perf_session *session __maybe_unused,
+			   union perf_event *event)
+{
+	perf_event__fprintf(event, NULL, stdout);
+	return 0;
+}
+
 static int process_text_poke_events(const struct perf_tool *tool,
 				    union perf_event *event,
 				    struct perf_sample *sample,
@@ -2877,8 +2887,9 @@ static int __cmd_script(struct perf_script *script)
 		script->tool.finished_round = process_finished_round_event;
 	}
 	if (script->show_bpf_events) {
-		script->tool.ksymbol = process_bpf_events;
-		script->tool.bpf     = process_bpf_events;
+		script->tool.ksymbol	  = process_bpf_events;
+		script->tool.bpf	  = process_bpf_events;
+		script->tool.bpf_metadata = process_bpf_metadata_event;
 	}
 	if (script->show_text_poke_events) {
 		script->tool.ksymbol   = process_bpf_events;
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 7544a3104e21..14b0d3689137 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1,9 +1,12 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <inttypes.h>
+#include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <perf/cpumap.h>
+#include <perf/event.h>
+#include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -78,6 +81,7 @@ static const char *perf_event__names[] = {
 	[PERF_RECORD_COMPRESSED]		= "COMPRESSED",
 	[PERF_RECORD_FINISHED_INIT]		= "FINISHED_INIT",
 	[PERF_RECORD_COMPRESSED2]		= "COMPRESSED2",
+	[PERF_RECORD_BPF_METADATA]		= "BPF_METADATA",
 };
 
 const char *perf_event__name(unsigned int id)
@@ -505,6 +509,20 @@ size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
 		       event->bpf.type, event->bpf.flags, event->bpf.id);
 }
 
+size_t perf_event__fprintf_bpf_metadata(union perf_event *event, FILE *fp)
+{
+	struct perf_record_bpf_metadata *metadata = &event->bpf_metadata;
+	size_t ret;
+
+	ret = fprintf(fp, " prog %s\n", metadata->prog_name);
+	for (__u32 i = 0; i < metadata->nr_entries; i++) {
+		ret += fprintf(fp, "  entry %d: %20s = %s\n", i,
+			       metadata->entries[i].key,
+			       metadata->entries[i].value);
+	}
+	return ret;
+}
+
 static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
 			     void *extra, FILE *fp)
 {
@@ -602,6 +620,9 @@ size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FIL
 	case PERF_RECORD_AUX_OUTPUT_HW_ID:
 		ret += perf_event__fprintf_aux_output_hw_id(event, fp);
 		break;
+	case PERF_RECORD_BPF_METADATA:
+		ret += perf_event__fprintf_bpf_metadata(event, fp);
+		break;
 	default:
 		ret += fprintf(fp, "\n");
 	}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 664bf39567ce..67ad4a2014bc 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -370,6 +370,7 @@ size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_bpf_metadata(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp);
 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp);
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index a320672c264e..38075059086c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -12,6 +12,7 @@
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <perf/cpumap.h>
+#include <perf/event.h>
 
 #include "map_symbol.h"
 #include "branch.h"
@@ -1491,6 +1492,9 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 	case PERF_RECORD_FINISHED_INIT:
 		err = tool->finished_init(session, event);
 		break;
+	case PERF_RECORD_BPF_METADATA:
+		err = tool->bpf_metadata(session, event);
+		break;
 	default:
 		err = -EINVAL;
 		break;
diff --git a/tools/perf/util/tool.c b/tools/perf/util/tool.c
index 37bd8ac63b01..204ec03071bc 100644
--- a/tools/perf/util/tool.c
+++ b/tools/perf/util/tool.c
@@ -1,12 +1,15 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "data.h"
 #include "debug.h"
+#include "event.h"
 #include "header.h"
 #include "session.h"
 #include "stat.h"
 #include "tool.h"
 #include "tsc.h"
+#include <linux/compiler.h>
 #include <sys/mman.h>
+#include <stddef.h>
 #include <unistd.h>
 
 #ifdef HAVE_ZSTD_SUPPORT
@@ -237,6 +240,16 @@ static int perf_session__process_compressed_event_stub(struct perf_session *sess
 	return 0;
 }
 
+static int perf_event__process_bpf_metadata_stub(struct perf_session *perf_session __maybe_unused,
+						 union perf_event *event)
+{
+	if (dump_trace)
+		perf_event__fprintf_bpf_metadata(event, stdout);
+
+	dump_printf(": unhandled!\n");
+	return 0;
+}
+
 void perf_tool__init(struct perf_tool *tool, bool ordered_events)
 {
 	tool->ordered_events = ordered_events;
@@ -293,6 +306,7 @@ void perf_tool__init(struct perf_tool *tool, bool ordered_events)
 	tool->compressed = perf_session__process_compressed_event_stub;
 #endif
 	tool->finished_init = process_event_op2_stub;
+	tool->bpf_metadata = perf_event__process_bpf_metadata_stub;
 }
 
 bool perf_tool__compressed_is_stub(const struct perf_tool *tool)
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index db1c7642b0d1..18b76ff0f26a 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -77,7 +77,8 @@ struct perf_tool {
 			stat,
 			stat_round,
 			feature,
-			finished_init;
+			finished_init,
+			bpf_metadata;
 	event_op4	compressed;
 	event_op3	auxtrace;
 	bool		ordered_events;

From edf2cadf01e8f2620af25b337d15ebc584911b46 Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Thu, 12 Jun 2025 12:49:39 -0700
Subject: [PATCH 032/179] perf test: add test for BPF metadata collection

This is an end-to-end test for the PERF_RECORD_BPF_METADATA support.
It adds a new "bpf_metadata_perf_version" variable to perf's BPF programs,
so that when they are loaded, there will be at least one BPF program with
some metadata to parse. The test invokes "perf record" in a way that loads
one of those BPF programs, and then sifts through the output to find its
BPF metadata.

Signed-off-by: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250612194939.162730-6-blakejones@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Makefile.perf                    |  3 +-
 tools/perf/tests/shell/test_bpf_metadata.sh | 76 +++++++++++++++++++++
 tools/perf/util/bpf_skel/perf_version.h     | 17 +++++
 3 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100755 tools/perf/tests/shell/test_bpf_metadata.sh
 create mode 100644 tools/perf/util/bpf_skel/perf_version.h

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index d4c7031b01a7..4f292edeca5a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1250,8 +1250,9 @@ else
 	$(Q)cp "$(VMLINUX_H)" $@
 endif
 
-$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) $(SKEL_OUT)/vmlinux.h | $(SKEL_TMP_OUT)
+$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(OUTPUT)PERF-VERSION-FILE util/bpf_skel/perf_version.h $(LIBBPF) $(SKEL_OUT)/vmlinux.h | $(SKEL_TMP_OUT)
 	$(QUIET_CLANG)$(CLANG) -g -O2 --target=bpf $(CLANG_OPTIONS) $(BPF_INCLUDE) $(TOOLS_UAPI_INCLUDE) \
+	  -include $(OUTPUT)PERF-VERSION-FILE -include util/bpf_skel/perf_version.h \
 	  -c $(filter util/bpf_skel/%.bpf.c,$^) -o $@
 
 $(SKEL_OUT)/%.skel.h: $(SKEL_TMP_OUT)/%.bpf.o | $(BPFTOOL)
diff --git a/tools/perf/tests/shell/test_bpf_metadata.sh b/tools/perf/tests/shell/test_bpf_metadata.sh
new file mode 100755
index 000000000000..11df592fb661
--- /dev/null
+++ b/tools/perf/tests/shell/test_bpf_metadata.sh
@@ -0,0 +1,76 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# BPF metadata collection test.
+
+set -e
+
+err=0
+perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
+
+cleanup() {
+	rm -f "${perfdata}"
+	rm -f "${perfdata}".old
+	trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+	cleanup
+	exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+test_bpf_metadata() {
+	echo "Checking BPF metadata collection"
+
+	if ! perf check -q feature libbpf-strings ; then
+		echo "Basic BPF metadata test [skipping - not supported]"
+		err=0
+		return
+	fi
+
+	# This is a basic invocation of perf record
+	# that invokes the perf_sample_filter BPF program.
+	if ! perf record -e task-clock --filter 'ip > 0' \
+			 -o "${perfdata}" sleep 1 2> /dev/null
+	then
+		echo "Basic BPF metadata test [Failed record]"
+		err=1
+		return
+	fi
+
+	# The BPF programs that ship with "perf" all have the following
+	# variable defined at compile time:
+	#
+	#   const char bpf_metadata_perf_version[] SEC(".rodata") = <...>;
+	#
+	# This invocation looks for a PERF_RECORD_BPF_METADATA event,
+	# and checks that its content contains the string given by
+	# "perf version".
+	VERS=$(perf version | awk '{print $NF}')
+	if ! perf script --show-bpf-events -i "${perfdata}" | awk '
+		/PERF_RECORD_BPF_METADATA.*perf_sample_filter/ {
+			header = 1;
+		}
+		/^ *entry/ {
+			if (header) { header = 0; entry = 1; }
+		}
+		$0 !~ /^ *entry/ {
+			entry = 0;
+		}
+		/perf_version/ {
+			if (entry) print $NF;
+		}
+	' | egrep "$VERS" > /dev/null
+	then
+		echo "Basic BPF metadata test [Failed invalid output]"
+		err=1
+		return
+	fi
+	echo "Basic BPF metadata test [Success]"
+}
+
+test_bpf_metadata
+
+cleanup
+exit $err
diff --git a/tools/perf/util/bpf_skel/perf_version.h b/tools/perf/util/bpf_skel/perf_version.h
new file mode 100644
index 000000000000..1ed5b2e59bf5
--- /dev/null
+++ b/tools/perf/util/bpf_skel/perf_version.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+#ifndef __PERF_VERSION_H__
+#define __PERF_VERSION_H__
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+/*
+ * This is used by tests/shell/record_bpf_metadata.sh
+ * to verify that BPF metadata generation works.
+ *
+ * PERF_VERSION is defined by a build rule at compile time.
+ */
+const char bpf_metadata_perf_version[] SEC(".rodata") = PERF_VERSION;
+
+#endif /* __PERF_VERSION_H__ */

From 3317dc9ebda6d585a4e74a8d4a74d0d2dc6b14c6 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 23 Jun 2025 09:19:29 -0700
Subject: [PATCH 033/179] perf srcline: Lower verbosity on addr2line debug
 messages

Lower non-error debug messages to verbose 3 or larger.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250623161930.1421216-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/srcline.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index f32d0d4f4bc9..3e3449e35dd4 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -524,12 +524,12 @@ static enum a2l_style addr2line_configure(struct child_process *a2l, const char
 			style = LLVM;
 			cached = true;
 			lines = 1;
-			pr_debug("Detected LLVM addr2line style\n");
+			pr_debug3("Detected LLVM addr2line style\n");
 		} else if (ch == '0') {
 			style = GNU_BINUTILS;
 			cached = true;
 			lines = 3;
-			pr_debug("Detected binutils addr2line style\n");
+			pr_debug3("Detected binutils addr2line style\n");
 		} else {
 			if (!symbol_conf.disable_add2line_warn) {
 				char *output = NULL;
@@ -595,7 +595,7 @@ static int read_addr2line_record(struct io *io,
 	if (io__getline(io, &line, &line_len) < 0 || !line_len)
 		goto error;
 
-	pr_debug("%s %s: addr2line read address for sentinel: %s", __func__, dso_name, line);
+	pr_debug3("%s %s: addr2line read address for sentinel: %s", __func__, dso_name, line);
 	if (style == LLVM && line_len == 2 && line[0] == ',') {
 		/* Found the llvm-addr2line sentinel character. */
 		zfree(&line);
@@ -641,7 +641,7 @@ static int read_addr2line_record(struct io *io,
 	if (first && (io__getline(io, &line, &line_len) < 0 || !line_len))
 		goto error;
 
-	pr_debug("%s %s: addr2line read line: %s", __func__, dso_name, line);
+	pr_debug3("%s %s: addr2line read line: %s", __func__, dso_name, line);
 	if (function != NULL)
 		*function = strdup(strim(line));
 
@@ -652,7 +652,7 @@ static int read_addr2line_record(struct io *io,
 	if (io__getline(io, &line, &line_len) < 0 || !line_len)
 		goto error;
 
-	pr_debug("%s %s: addr2line filename:number : %s", __func__, dso_name, line);
+	pr_debug3("%s %s: addr2line filename:number : %s", __func__, dso_name, line);
 	if (filename_split(line, line_nr == NULL ? &dummy_line_nr : line_nr) == 0 &&
 	    style == GNU_BINUTILS) {
 		ret = 0;

From c335a4e927537996b425025586d5d8db2763124c Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Jun 2025 18:24:33 -0300
Subject: [PATCH 034/179] perf build: Suggest java-latest-openjdk-devel instead
 of old 1.8.0 one

Just tidying up the suggestion to pick the latest and not some specific
version.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250620212435.93846-2-acme@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Makefile.config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index affe5e173920..342402a24325 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1152,7 +1152,7 @@ ifndef NO_JVMTI
       endif
     endif # NO_JVMTI_CMLR
   else
-    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
+    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-latest-openjdk-devel)
     NO_JVMTI := 1
   endif
 endif

From 7c750d399b60e17f2a346690e0d34aae9c086eac Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Jun 2025 18:24:34 -0300
Subject: [PATCH 035/179] perf build: Add the libpfm devel fedora package name
 to the hint

Just to follow the pattern with other devel packages.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250620212435.93846-3-acme@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Makefile.config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 342402a24325..2672c249eadf 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1165,7 +1165,7 @@ ifndef NO_LIBPFM4
     ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
     $(call detected,CONFIG_LIBPFM4)
   else
-    $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
+    $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm-devel or libpfm4-dev)
   endif
 endif
 

From 970ae86307718c347aff8fe4bf6e780bcce26c58 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Jun 2025 18:24:35 -0300
Subject: [PATCH 036/179] perf build: The bfd features are opt-in, stop testing
 for them by default

These are leftovers noticed while updating a build container.

We don't need those so that test-all.c can build and thus speed up the
feature detection.

Test for those features only if the user asks for BUILD_NONDISTRO=1 to
build with libbfd.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250620212435.93846-4-acme@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/build/feature/test-all.c | 19 -------------------
 tools/perf/Makefile.config     |  5 +++++
 2 files changed, 5 insertions(+), 19 deletions(-)

diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 03ddaac6f4c4..1010f233d9c1 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -66,14 +66,6 @@
 # include "test-libslang.c"
 #undef main
 
-#define main main_test_libbfd
-# include "test-libbfd.c"
-#undef main
-
-#define main main_test_libbfd_buildid
-# include "test-libbfd-buildid.c"
-#undef main
-
 #define main main_test_backtrace
 # include "test-backtrace.c"
 #undef main
@@ -158,14 +150,6 @@
 # include "test-reallocarray.c"
 #undef main
 
-#define main main_test_disassembler_four_args
-# include "test-disassembler-four-args.c"
-#undef main
-
-#define main main_test_disassembler_init_styled
-# include "test-disassembler-init-styled.c"
-#undef main
-
 #define main main_test_libzstd
 # include "test-libzstd.c"
 #undef main
@@ -193,8 +177,6 @@ int main(int argc, char *argv[])
 	main_test_libelf_gelf_getnote();
 	main_test_libelf_getshdrstrndx();
 	main_test_libslang();
-	main_test_libbfd();
-	main_test_libbfd_buildid();
 	main_test_backtrace();
 	main_test_libnuma();
 	main_test_numa_num_possible_cpus();
@@ -213,7 +195,6 @@ int main(int argc, char *argv[])
 	main_test_setns();
 	main_test_libaio();
 	main_test_reallocarray();
-	main_test_disassembler_four_args();
 	main_test_libzstd();
 	main_test_libtraceevent();
 	main_test_libtracefs();
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 2672c249eadf..24736b0bbb30 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -926,6 +926,8 @@ ifneq ($(NO_JEVENTS),1)
 endif
 
 ifdef BUILD_NONDISTRO
+  $(call feature_check,libbfd)
+
   ifeq ($(feature-libbfd), 1)
     EXTLIBS += -lbfd -lopcodes
   else
@@ -954,6 +956,9 @@ ifdef BUILD_NONDISTRO
 
   CFLAGS += -DHAVE_LIBBFD_SUPPORT
   CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
+
+  $(call feature_check,libbfd-buildid)
+
   ifeq ($(feature-libbfd-buildid), 1)
     CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
   else

From c21986d33d6beb269a35b38dcb8adaa5bd228527 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Mon, 5 May 2025 18:44:19 +0100
Subject: [PATCH 037/179] perf unwind-libdw: skip non-regular files

Without the change `perf `hangs up on charaster devices. On my system
it's enough to run system-wide sampler for a few seconds to get the
hangup:

    $ perf record -a -g --call-graph=dwarf
    $ perf report
    # hung

`strace` shows that hangup happens on reading on a character device
`/dev/dri/renderD128`

    $ strace -y -f -p 2780484
    strace: Process 2780484 attached
    pread64(101</dev/dri/renderD128>, strace: Process 2780484 detached

It's call trace descends into `elfutils`:

    $ gdb -p 2780484
    (gdb) bt
    #0  0x00007f5e508f04b7 in __libc_pread64 (fd=101, buf=0x7fff9df7edb0, count=0, offset=0)
        at ../sysdeps/unix/sysv/linux/pread64.c:25
    #1  0x00007f5e52b79515 in read_file () from /<<NIX>>/elfutils-0.192/lib/libelf.so.1
    #2  0x00007f5e52b25666 in libdw_open_elf () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #3  0x00007f5e52b25907 in __libdw_open_file () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #4  0x00007f5e52b120a9 in dwfl_report_elf@@ELFUTILS_0.156 ()
       from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #5  0x000000000068bf20 in __report_module (al=al@entry=0x7fff9df80010, ip=ip@entry=139803237033216, ui=ui@entry=0x5369b5e0)
        at util/dso.h:537
    #6  0x000000000068c3d1 in report_module (ip=139803237033216, ui=0x5369b5e0) at util/unwind-libdw.c:114
    #7  frame_callback (state=0x535aef10, arg=0x5369b5e0) at util/unwind-libdw.c:242
    #8  0x00007f5e52b261d3 in dwfl_thread_getframes () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #9  0x00007f5e52b25bdb in get_one_thread_cb () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #10 0x00007f5e52b25faa in dwfl_getthreads () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #11 0x00007f5e52b26514 in dwfl_getthread_frames () from /<<NIX>>/elfutils-0.192/lib/libdw.so.1
    #12 0x000000000068c6ce in unwind__get_entries (cb=cb@entry=0x5d4620 <unwind_entry>, arg=arg@entry=0x10cd5fa0,
        thread=thread@entry=0x1076a290, data=data@entry=0x7fff9df80540, max_stack=max_stack@entry=127,
        best_effort=best_effort@entry=false) at util/thread.h:152
    #13 0x00000000005dae95 in thread__resolve_callchain_unwind (evsel=0x106006d0, thread=0x1076a290, cursor=0x10cd5fa0,
        sample=0x7fff9df80540, max_stack=127, symbols=true) at util/machine.c:2939
    #14 thread__resolve_callchain_unwind (thread=0x1076a290, cursor=0x10cd5fa0, evsel=0x106006d0, sample=0x7fff9df80540,
        max_stack=127, symbols=true) at util/machine.c:2920
    #15 __thread__resolve_callchain (thread=0x1076a290, cursor=0x10cd5fa0, evsel=0x106006d0, evsel@entry=0x7fff9df80440,
        sample=0x7fff9df80540, parent=parent@entry=0x7fff9df804a0, root_al=root_al@entry=0x7fff9df80440, max_stack=127, symbols=true)
        at util/machine.c:2970
    #16 0x00000000005d0cb2 in thread__resolve_callchain (thread=<optimized out>, cursor=<optimized out>, evsel=0x7fff9df80440,
        sample=<optimized out>, parent=0x7fff9df804a0, root_al=0x7fff9df80440, max_stack=127) at util/machine.h:198
    #17 sample__resolve_callchain (sample=<optimized out>, cursor=<optimized out>, parent=parent@entry=0x7fff9df804a0,
        evsel=evsel@entry=0x106006d0, al=al@entry=0x7fff9df80440, max_stack=max_stack@entry=127) at util/callchain.c:1127
    #18 0x0000000000617e08 in hist_entry_iter__add (iter=iter@entry=0x7fff9df80480, al=al@entry=0x7fff9df80440, max_stack_depth=127,
        arg=arg@entry=0x7fff9df81ae0) at util/hist.c:1255
    #19 0x000000000045d2d0 in process_sample_event (tool=0x7fff9df81ae0, event=<optimized out>, sample=0x7fff9df80540,
        evsel=0x106006d0, machine=<optimized out>) at builtin-report.c:334
    #20 0x00000000005e3bb1 in perf_session__deliver_event (session=0x105ff2c0, event=0x7f5c7d735ca0, tool=0x7fff9df81ae0,
        file_offset=2914716832, file_path=0x105ffbf0 "perf.data") at util/session.c:1367
    #21 0x00000000005e8d93 in do_flush (oe=0x105ffa50, show_progress=false) at util/ordered-events.c:245
    #22 __ordered_events__flush (oe=0x105ffa50, how=OE_FLUSH__ROUND, timestamp=<optimized out>) at util/ordered-events.c:324
    #23 0x00000000005e1f64 in perf_session__process_user_event (session=0x105ff2c0, event=0x7f5c7d752b18, file_offset=2914835224,
        file_path=0x105ffbf0 "perf.data") at util/session.c:1419
    #24 0x00000000005e47c7 in reader__read_event (rd=rd@entry=0x7fff9df81260, session=session@entry=0x105ff2c0,
    --Type <RET> for more, q to quit, c to continue without paging--
    quit
        prog=prog@entry=0x7fff9df81220) at util/session.c:2132
    #25 0x00000000005e4b37 in reader__process_events (rd=0x7fff9df81260, session=0x105ff2c0, prog=0x7fff9df81220)
        at util/session.c:2181
    #26 __perf_session__process_events (session=0x105ff2c0) at util/session.c:2226
    #27 perf_session__process_events (session=session@entry=0x105ff2c0) at util/session.c:2390
    #28 0x0000000000460add in __cmd_report (rep=0x7fff9df81ae0) at builtin-report.c:1076
    #29 cmd_report (argc=<optimized out>, argv=<optimized out>) at builtin-report.c:1827
    #30 0x00000000004c5a40 in run_builtin (p=p@entry=0xd8f7f8 <commands+312>, argc=argc@entry=1, argv=argv@entry=0x7fff9df844b0)
        at perf.c:351
    #31 0x00000000004c5d63 in handle_internal_command (argc=argc@entry=1, argv=argv@entry=0x7fff9df844b0) at perf.c:404
    #32 0x0000000000442de3 in run_argv (argcp=<synthetic pointer>, argv=<synthetic pointer>) at perf.c:448
    #33 main (argc=<optimized out>, argv=0x7fff9df844b0) at perf.c:556

The hangup happens because nothing in` perf` or `elfutils` checks if a
mapped file is easily readable.

The change conservatively skips all non-regular files.

Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250505174419.2814857-1-slyich@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/unwind-libdw.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 793d11832694..ae70fb56a057 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -84,8 +84,11 @@ static int __report_module(struct addr_location *al, u64 ip,
 		char filename[PATH_MAX];
 
 		__symbol__join_symfs(filename, sizeof(filename), dso__long_name(dso));
-		mod = dwfl_report_elf(ui->dwfl, dso__short_name(dso), filename, -1,
-				      base, false);
+		/* Don't hang up on device files like /dev/dri/renderD128. */
+		if (is_regular_file(filename)) {
+			mod = dwfl_report_elf(ui->dwfl, dso__short_name(dso), filename, -1,
+					      base, false);
+		}
 	}
 	if (!mod) {
 		char filename[PATH_MAX];

From 317fa41b47da63730145e336c9ef47c62b78ee4f Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Fri, 2 May 2025 13:40:56 -0700
Subject: [PATCH 038/179] perf trace: Show zero value in STRARRAY

The STRARRAY macro is to print values in a pre-defined array.  But
sometimes it hides the value because it's 0.  The value of 0 can have a
meaning in this case so set 'show_zero' field.

For example, it can show CREATE_MAP cmd in the bpf syscall.

Acked-by: Howard Chu <howardchu95@gmail.com>
Link: https://lore.kernel.org/r/20250502204056.973977-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-trace.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bf9b5d0630d3..61650be8fccd 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1124,12 +1124,14 @@ static bool syscall_arg__strtoul_btf_type(char *bf __maybe_unused, size_t size _
 #define STRARRAY(name, array) \
 	  { .scnprintf	= SCA_STRARRAY, \
 	    .strtoul	= STUL_STRARRAY, \
-	    .parm	= &strarray__##array, }
+	    .parm	= &strarray__##array, \
+	    .show_zero	= true, }
 
 #define STRARRAY_FLAGS(name, array) \
 	  { .scnprintf	= SCA_STRARRAY_FLAGS, \
 	    .strtoul	= STUL_STRARRAY_FLAGS, \
-	    .parm	= &strarray__##array, }
+	    .parm	= &strarray__##array, \
+	    .show_zero	= true, }
 
 #include "trace/beauty/eventfd.c"
 #include "trace/beauty/futex_op.c"

From df9c299371054cb725eef730fd0f1d0fe2ed6bb0 Mon Sep 17 00:00:00 2001
From: Tianyou Li <tianyou.li@intel.com>
Date: Tue, 10 Jun 2025 12:04:22 +0800
Subject: [PATCH 039/179] perf script: Handle -i option for perf script
 flamegraph

If specify the perf data file with -i option, the script will try to
read the header information regardless of the file name specified,
instead it will try to access the perf.data. This simple patch use the
file name from -i option for command perf report --header-only to read
the header.

Signed-off-by: Tianyou Li <tianyou.li@intel.com>
Reviewed-by: Pan Deng <pan.deng@intel.com>
Reviewed-by: Zhiguo Zhou <zhiguo.zhou@intel.com>
Reviewed-by: Wangyang Guo <wangyang.guo@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20250610040536.2390060-1-tianyou.li@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/scripts/python/flamegraph.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py
index cf7ce8229a6c..4f82dfea0a70 100755
--- a/tools/perf/scripts/python/flamegraph.py
+++ b/tools/perf/scripts/python/flamegraph.py
@@ -123,7 +123,13 @@ class FlameGraphCLI:
             return ""
 
         try:
-            output = subprocess.check_output(["perf", "report", "--header-only"])
+            # if the file name other than perf.data is given,
+            # we read the header of that file
+            if self.args.input:
+                output = subprocess.check_output(["perf", "report", "--header-only", "-i", self.args.input])
+            else:
+                output = subprocess.check_output(["perf", "report", "--header-only"])
+
             return output.decode("utf-8")
         except Exception as err:  # pylint: disable=broad-except
             print("Error reading report header: {}".format(err), file=sys.stderr)

From 9a79c50c2a95887859d5ac133180775b708b850a Mon Sep 17 00:00:00 2001
From: Tianyou Li <tianyou.li@intel.com>
Date: Tue, 10 Jun 2025 12:04:23 +0800
Subject: [PATCH 040/179] perf script: Add -e option to flamegraph script

When processing the perf data file generated with multiple events,
the flamegraph script will count all the events regardless of
different event names.

This patch tries to add a -e option to specify the event name that
the flamegraph will be generated accordingly. If the -e option omitted,
the behavior remains unchanged.

Signed-off-by: Tianyou Li <tianyou.li@intel.com>
Reviewed-by: Pan Deng <pan.deng@intel.com>
Reviewed-by: Zhiguo Zhou <zhiguo.zhou@intel.com>
Reviewed-by: Wangyang Guo <wangyang.guo@intel.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20250610040536.2390060-2-tianyou.li@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/scripts/python/flamegraph.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py
index 4f82dfea0a70..e49ff242b779 100755
--- a/tools/perf/scripts/python/flamegraph.py
+++ b/tools/perf/scripts/python/flamegraph.py
@@ -94,6 +94,11 @@ class FlameGraphCLI:
         return child
 
     def process_event(self, event):
+        # ignore events where the event name does not match
+        # the one specified by the user
+        if self.args.event_name and event.get("ev_name") != self.args.event_name:
+            return
+
         pid = event.get("sample", {}).get("pid", 0)
         # event["dso"] sometimes contains /usr/lib/debug/lib/modules/*/vmlinux
         # for user-space processes; let's use pid for kernel or user-space distinction
@@ -130,7 +135,10 @@ class FlameGraphCLI:
             else:
                 output = subprocess.check_output(["perf", "report", "--header-only"])
 
-            return output.decode("utf-8")
+            result = output.decode("utf-8")
+            if self.args.event_name:
+                result += "\nFocused event: " + self.args.event_name
+            return result
         except Exception as err:  # pylint: disable=broad-except
             print("Error reading report header: {}".format(err), file=sys.stderr)
             return ""
@@ -241,6 +249,11 @@ if __name__ == "__main__":
                         default=False,
                         action="store_true",
                         help="allow unprompted downloading of HTML template")
+    parser.add_argument("-e", "--event",
+                        default="",
+                        dest="event_name",
+                        type=str,
+                        help="specify the event to generate flamegraph for")
 
     cli_args = parser.parse_args()
     cli = FlameGraphCLI(cli_args)

From eda9e47fae276d2b7a2b6a826b38259e6481d879 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 17 Jun 2025 15:33:55 -0700
Subject: [PATCH 041/179] perf trace: Add missed freeing of ordered events and
 thread

Caught by leak sanitizer running "perf trace BTF general tests". Make
the ordered_events initialization unconditional and early so that
trace__exit cleanup is simple - ordered_events__init doesn't allocate
and just sets up 4 values and inits 3 list heads.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-trace.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 61650be8fccd..c38225a89fc8 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -5361,6 +5361,7 @@ static int trace__config(const char *var, const char *value, void *arg)
 
 static void trace__exit(struct trace *trace)
 {
+	thread__zput(trace->current);
 	strlist__delete(trace->ev_qualifier);
 	zfree(&trace->ev_qualifier_ids.entries);
 	if (trace->syscalls.table) {
@@ -5371,6 +5372,7 @@ static void trace__exit(struct trace *trace)
 	zfree(&trace->perfconfig_events);
 	evlist__delete(trace->evlist);
 	trace->evlist = NULL;
+	ordered_events__free(&trace->oe.data);
 #ifdef HAVE_LIBBPF_SUPPORT
 	btf__free(trace->btf);
 	trace->btf = NULL;
@@ -5520,6 +5522,9 @@ int cmd_trace(int argc, const char **argv)
 	sigchld_act.sa_sigaction = sighandler_chld;
 	sigaction(SIGCHLD, &sigchld_act, NULL);
 
+	ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace);
+	ordered_events__set_copy_on_queue(&trace.oe.data, true);
+
 	trace.evlist = evlist__new();
 
 	if (trace.evlist == NULL) {
@@ -5678,11 +5683,6 @@ int cmd_trace(int argc, const char **argv)
 			trace__load_vmlinux_btf(&trace);
 	}
 
-	if (trace.sort_events) {
-		ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace);
-		ordered_events__set_copy_on_queue(&trace.oe.data, true);
-	}
-
 	/*
 	 * If we are augmenting syscalls, then combine what we put in the
 	 * __augmented_syscalls__ BPF map with what is in the

From be59dba332e1e8edd3e88d991ba0e4795ae2bcb2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 17 Jun 2025 15:33:56 -0700
Subject: [PATCH 042/179] libperf evsel: Add missed puts and asserts

A missed evsel__close before evsel__delete was the source of leaking
perf events due to a hybrid test. Add asserts in debug builds so that
this shouldn't happen in the future. Add puts missing on the cpu map
and thread maps.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/perf/evsel.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
index c475319e2e41..2a85e0bfee1e 100644
--- a/tools/lib/perf/evsel.c
+++ b/tools/lib/perf/evsel.c
@@ -42,6 +42,12 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
 
 void perf_evsel__delete(struct perf_evsel *evsel)
 {
+	assert(evsel->fd == NULL);  /* If not fds were not closed. */
+	assert(evsel->mmap == NULL); /* If not munmap wasn't called. */
+	assert(evsel->sample_id == NULL); /* If not free_id wasn't called. */
+	perf_cpu_map__put(evsel->cpus);
+	perf_cpu_map__put(evsel->own_cpus);
+	perf_thread_map__put(evsel->threads);
 	free(evsel);
 }
 

From 614f806a34e134b7a35eb4b29a139b2c8c1b7795 Mon Sep 17 00:00:00 2001
From: Chun-Tse Shao <ctshao@google.com>
Date: Fri, 20 Jun 2025 10:40:09 -0700
Subject: [PATCH 043/179] perf test: Replace grep perl regexp with awk

perl is not universal on all machines and should be replaced with awk,
which is much more common.

Before:
  $ perf test "probe libc's inet_pton & backtrace it with ping" -v
  --- start ---
  test child forked, pid 145431
  grep: Perl matching not supported in a --disable-perl-regexp build

  FAIL: could not add event
  ---- end(-1) ----
  121: probe libc's inet_pton & backtrace it with ping                 : FAILED!
After:
  $ perf test "probe libc's inet_pton & backtrace it with ping" -v
  121: probe libc's inet_pton & backtrace it with ping                 : Ok

Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Chun-Tse Shao <ctshao@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250620174034.819894-1-ctshao@google.com
[ fold James' suggestion not to escape _ in the event pattern. ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
index c4bab5b5cc59..9bdf47aabe9d 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -18,12 +18,13 @@
 libc=$(grep -w libc /proc/self/maps | head -1 | sed -r 's/.*[[:space:]](\/.*)/\1/g')
 nm -Dg $libc 2>/dev/null | grep -F -q inet_pton || exit 254
 
-event_pattern='probe_libc:inet_pton(\_[[:digit:]]+)?'
+event_pattern='probe_libc:inet_pton(_[[:digit:]]+)?'
 
 add_libc_inet_pton_event() {
 
 	event_name=$(perf probe -f -x $libc -a inet_pton 2>&1 | tail -n +2 | head -n -5 | \
-			grep -P -o "$event_pattern(?=[[:space:]]\(on inet_pton in $libc\))")
+			awk -v ep="$event_pattern" -v l="$libc" '$0 ~ ep && $0 ~ \
+			("\\(on inet_pton in " l "\\)") {print $1}')
 
 	if [ $? -ne 0 ] || [ -z "$event_name" ] ; then
 		printf "FAIL: could not add event\n"

From 51f4c00436b89696773e195c5f2d4a808483ff66 Mon Sep 17 00:00:00 2001
From: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Date: Wed, 11 Jun 2025 15:29:03 +0530
Subject: [PATCH 044/179] perf tools: Remove excess variable declarations

I thought array declaration might be done in the same line as assigning the value
to it.

Hence, getting rid of extra steps of reiterating the array name.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Link: https://lore.kernel.org/r/20250611100256.31089-1-unixbhaskar@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/check-headers.sh | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 8085e4d1d8af..be519c433ce4 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -4,8 +4,7 @@
 YELLOW='\033[0;33m'
 NC='\033[0m' # No Color
 
-declare -a FILES
-FILES=(
+declare -a FILES=(
   "include/uapi/linux/const.h"
   "include/uapi/drm/drm.h"
   "include/uapi/drm/i915_drm.h"
@@ -73,8 +72,7 @@ FILES=(
   "scripts/syscall.tbl"
 )
 
-declare -a SYNC_CHECK_FILES
-SYNC_CHECK_FILES=(
+declare -a SYNC_CHECK_FILES=(
   "arch/x86/include/asm/inat.h"
   "arch/x86/include/asm/insn.h"
   "arch/x86/lib/inat.c"
@@ -86,8 +84,7 @@ SYNC_CHECK_FILES=(
 # tables that then gets included in .c files for things like id->string syscall
 # tables (and the reverse lookup as well: string -> id)
 
-declare -a BEAUTY_FILES
-BEAUTY_FILES=(
+declare -a BEAUTY_FILES=(
   "arch/x86/include/asm/irq_vectors.h"
   "arch/x86/include/uapi/asm/prctl.h"
   "include/linux/socket.h"

From 9c9f4a27eb1096beb650f312a1ce996a9960b56c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 14:05:00 -0700
Subject: [PATCH 045/179] perf debug: Add function symbols to dump_stack

Symbolize stack traces by creating a live machine. Add this
functionality to dump_stack and switch dump_stack users to use
it. Switch TUI to use it. Add stack traces to the child test function
which can be useful to diagnose blocked code.

Example output:
```
$ perf test -vv PERF_RECORD_
...
  7: PERF_RECORD_* events & perf_sample fields:
  7: PERF_RECORD_* events & perf_sample fields                       : Running (1 active)
^C
Signal (2) while running tests.
Terminating tests with the same signal
Internal test harness failure. Completing any started tests:
:  7: PERF_RECORD_* events & perf_sample fields:

---- unexpected signal (2) ----
    #0 0x55788c6210a3 in child_test_sig_handler builtin-test.c:0
    #1 0x7fc12fe49df0 in __restore_rt libc_sigaction.c:0
    #2 0x7fc12fe99687 in __internal_syscall_cancel cancellation.c:64
    #3 0x7fc12fee5f7a in clock_nanosleep@GLIBC_2.2.5 clock_nanosleep.c:72
    #4 0x7fc12fef1393 in __nanosleep nanosleep.c:26
    #5 0x7fc12ff02d68 in __sleep sleep.c:55
    #6 0x55788c63196b in test__PERF_RECORD perf-record.c:0
    #7 0x55788c620fb0 in run_test_child builtin-test.c:0
    #8 0x55788c5bd18d in start_command run-command.c:127
    #9 0x55788c621ef3 in __cmd_test builtin-test.c:0
    #10 0x55788c6225bf in cmd_test ??:0
    #11 0x55788c5afbd0 in run_builtin perf.c:0
    #12 0x55788c5afeeb in handle_internal_command perf.c:0
    #13 0x55788c52b383 in main ??:0
    #14 0x7fc12fe33ca8 in __libc_start_call_main libc_start_call_main.h:74
    #15 0x7fc12fe33d65 in __libc_start_main@@GLIBC_2.34 libc-start.c:128
    #16 0x55788c52b9d1 in _start ??:0

---- unexpected signal (2) ----
    #0 0x55788c6210a3 in child_test_sig_handler builtin-test.c:0
    #1 0x7fc12fe49df0 in __restore_rt libc_sigaction.c:0
    #2 0x7fc12fea3a14 in pthread_sigmask@GLIBC_2.2.5 pthread_sigmask.c:45
    #3 0x7fc12fe49fd9 in __GI___sigprocmask sigprocmask.c:26
    #4 0x7fc12ff2601b in __longjmp_chk longjmp.c:36
    #5 0x55788c6210c0 in print_test_result.isra.0 builtin-test.c:0
    #6 0x7fc12fe49df0 in __restore_rt libc_sigaction.c:0
    #7 0x7fc12fe99687 in __internal_syscall_cancel cancellation.c:64
    #8 0x7fc12fee5f7a in clock_nanosleep@GLIBC_2.2.5 clock_nanosleep.c:72
    #9 0x7fc12fef1393 in __nanosleep nanosleep.c:26
    #10 0x7fc12ff02d68 in __sleep sleep.c:55
    #11 0x55788c63196b in test__PERF_RECORD perf-record.c:0
    #12 0x55788c620fb0 in run_test_child builtin-test.c:0
    #13 0x55788c5bd18d in start_command run-command.c:127
    #14 0x55788c621ef3 in __cmd_test builtin-test.c:0
    #15 0x55788c6225bf in cmd_test ??:0
    #16 0x55788c5afbd0 in run_builtin perf.c:0
    #17 0x55788c5afeeb in handle_internal_command perf.c:0
    #18 0x55788c52b383 in main ??:0
    #19 0x7fc12fe33ca8 in __libc_start_call_main libc_start_call_main.h:74
    #20 0x7fc12fe33d65 in __libc_start_main@@GLIBC_2.34 libc-start.c:128
    #21 0x55788c52b9d1 in _start ??:0
  7: PERF_RECORD_* events & perf_sample fields                       : Skip (permissions)
```

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624210500.2121303-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/builtin-test.c | 15 +++++++-
 tools/perf/ui/tui/setup.c       |  2 +-
 tools/perf/util/debug.c         | 68 +++++++++++++++++++++++++++------
 tools/perf/util/debug.h         |  1 +
 4 files changed, 73 insertions(+), 13 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 45d3d8b3317a..80375ca39a37 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -6,6 +6,9 @@
  */
 #include <fcntl.h>
 #include <errno.h>
+#ifdef HAVE_BACKTRACE_SUPPORT
+#include <execinfo.h>
+#endif
 #include <poll.h>
 #include <unistd.h>
 #include <setjmp.h>
@@ -231,6 +234,16 @@ static jmp_buf run_test_jmp_buf;
 
 static void child_test_sig_handler(int sig)
 {
+#ifdef HAVE_BACKTRACE_SUPPORT
+	void *stackdump[32];
+	size_t stackdump_size;
+#endif
+
+	fprintf(stderr, "\n---- unexpected signal (%d) ----\n", sig);
+#ifdef HAVE_BACKTRACE_SUPPORT
+	stackdump_size = backtrace(stackdump, ARRAY_SIZE(stackdump));
+	__dump_stack(stderr, stackdump, stackdump_size);
+#endif
 	siglongjmp(run_test_jmp_buf, sig);
 }
 
@@ -244,7 +257,7 @@ static int run_test_child(struct child_process *process)
 
 	err = sigsetjmp(run_test_jmp_buf, 1);
 	if (err) {
-		fprintf(stderr, "\n---- unexpected signal (%d) ----\n", err);
+		/* Received signal. */
 		err = err > 0 ? -err : -1;
 		goto err_out;
 	}
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c
index 16c6eff4d241..022534eed68c 100644
--- a/tools/perf/ui/tui/setup.c
+++ b/tools/perf/ui/tui/setup.c
@@ -108,7 +108,7 @@ static void ui__signal_backtrace(int sig)
 
 	printf("-------- backtrace --------\n");
 	size = backtrace(stackdump, ARRAY_SIZE(stackdump));
-	backtrace_symbols_fd(stackdump, size, STDOUT_FILENO);
+	__dump_stack(stdout, stackdump, size);
 
 	exit(0);
 }
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index f9ef7d045c92..2878a7363ac8 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -14,11 +14,18 @@
 #ifdef HAVE_BACKTRACE_SUPPORT
 #include <execinfo.h>
 #endif
+#include "addr_location.h"
 #include "color.h"
-#include "event.h"
 #include "debug.h"
+#include "event.h"
+#include "machine.h"
+#include "map.h"
 #include "print_binary.h"
+#include "srcline.h"
+#include "symbol.h"
+#include "synthetic-events.h"
 #include "target.h"
+#include "thread.h"
 #include "trace-event.h"
 #include "ui/helpline.h"
 #include "ui/ui.h"
@@ -298,21 +305,60 @@ void perf_debug_setup(void)
 	libapi_set_print(pr_warning_wrapper, pr_warning_wrapper, pr_debug_wrapper);
 }
 
+void __dump_stack(FILE *file, void **stackdump, size_t stackdump_size)
+{
+	/* TODO: async safety. printf, malloc, etc. aren't safe inside a signal handler. */
+	pid_t pid = getpid();
+	struct machine *machine = machine__new_live(/*kernel_maps=*/false, pid);
+	struct thread *thread = NULL;
+
+	if (machine)
+		thread = machine__find_thread(machine, pid, pid);
+
+#ifdef HAVE_BACKTRACE_SUPPORT
+	if (!machine || !thread) {
+		/*
+		 * Backtrace functions are async signal safe. Fall back on them
+		 * if machine/thread creation fails.
+		 */
+		backtrace_symbols_fd(stackdump, stackdump_size, fileno(file));
+		machine__delete(machine);
+		return;
+	}
+#endif
+
+	for (size_t i = 0; i < stackdump_size; i++) {
+		struct addr_location al;
+		u64 addr = (u64)(uintptr_t)stackdump[i];
+		bool printed = false;
+
+		addr_location__init(&al);
+		if (thread && thread__find_map(thread, PERF_RECORD_MISC_USER, addr, &al)) {
+			al.sym = map__find_symbol(al.map, al.addr);
+			if (al.sym) {
+				fprintf(file, "    #%zd %p in %s ", i, stackdump[i], al.sym->name);
+				printed = true;
+			}
+		}
+		if (!printed)
+			fprintf(file, "    #%zd %p ", i, stackdump[i]);
+
+		map__fprintf_srcline(al.map, al.addr, "", file);
+		fprintf(file, "\n");
+		addr_location__exit(&al);
+	}
+	thread__put(thread);
+	machine__delete(machine);
+}
+
 /* Obtain a backtrace and print it to stdout. */
 #ifdef HAVE_BACKTRACE_SUPPORT
 void dump_stack(void)
 {
-	void *array[16];
-	size_t size = backtrace(array, ARRAY_SIZE(array));
-	char **strings = backtrace_symbols(array, size);
-	size_t i;
+	void *stackdump[32];
+	size_t size = backtrace(stackdump, ARRAY_SIZE(stackdump));
 
-	printf("Obtained %zd stack frames.\n", size);
-
-	for (i = 0; i < size; i++)
-		printf("%s\n", strings[i]);
-
-	free(strings);
+	__dump_stack(stdout, stackdump, size);
 }
 #else
 void dump_stack(void) {}
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index a4026d1fd6a3..6b737e195ce1 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -85,6 +85,7 @@ void debug_set_display_time(bool set);
 void perf_debug_setup(void);
 int perf_quiet_option(void);
 
+void __dump_stack(FILE *file, void **stackdump, size_t stackdump_size);
 void dump_stack(void);
 void sighandler_dump_stack(int sig);
 

From e1ec69ed5ded5351efb04218dcab9d79ab018ac5 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 16:18:35 -0700
Subject: [PATCH 046/179] perf parse-events: Avoid scanning PMUs that can't
 contain events

Add perf_pmus__scan_for_event that only reads sysfs for pmus that
could contain a given event.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624231837.179536-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 33 ++++++++-------
 tools/perf/util/pmus.c         | 77 ++++++++++++++++++++++++++++++++++
 tools/perf/util/pmus.h         |  2 +
 3 files changed, 97 insertions(+), 15 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d1965a7b97ed..4cd64ffa4fcd 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -490,7 +490,7 @@ int parse_events_add_cache(struct list_head *list, int *idx, const char *name,
 	int ret = 0;
 	struct evsel *first_wildcard_match = NULL;
 
-	while ((pmu = perf_pmus__scan(pmu)) != NULL) {
+	while ((pmu = perf_pmus__scan_for_event(pmu, name)) != NULL) {
 		LIST_HEAD(config_terms);
 		struct perf_event_attr attr;
 
@@ -1681,7 +1681,8 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 
 	INIT_LIST_HEAD(list);
 
-	while ((pmu = perf_pmus__scan(pmu)) != NULL) {
+	while ((pmu = perf_pmus__scan_for_event(pmu, event_name)) != NULL) {
+
 		if (parse_events__filter_pmu(parse_state, pmu))
 			continue;
 
@@ -1760,19 +1761,21 @@ int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state
 
 	pmu = NULL;
 	/* Failed to add, try wildcard expansion of event_or_pmu as a PMU name. */
-	while ((pmu = perf_pmus__scan(pmu)) != NULL) {
-		if (!parse_events__filter_pmu(parse_state, pmu) &&
-		    perf_pmu__wildcard_match(pmu, event_or_pmu)) {
-			if (!parse_events_add_pmu(parse_state, *listp, pmu,
-						  const_parsed_terms,
-						  first_wildcard_match,
-						  /*alternate_hw_config=*/PERF_COUNT_HW_MAX)) {
-				ok++;
-				parse_state->wild_card_pmus = true;
-			}
-			if (first_wildcard_match == NULL)
-				first_wildcard_match =
-					container_of((*listp)->prev, struct evsel, core.node);
+	while ((pmu = perf_pmus__scan_matching_wildcard(pmu, event_or_pmu)) != NULL) {
+
+		if (parse_events__filter_pmu(parse_state, pmu))
+			continue;
+
+		if (!parse_events_add_pmu(parse_state, *listp, pmu,
+					  const_parsed_terms,
+					  first_wildcard_match,
+					  /*alternate_hw_config=*/PERF_COUNT_HW_MAX)) {
+			ok++;
+			parse_state->wild_card_pmus = true;
+		}
+		if (first_wildcard_match == NULL) {
+			first_wildcard_match =
+				container_of((*listp)->prev, struct evsel, core.node);
 		}
 	}
 	if (ok)
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index 3bbd26fec78a..e0094f56b8e7 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -19,6 +19,7 @@
 #include "tool_pmu.h"
 #include "print-events.h"
 #include "strbuf.h"
+#include "string2.h"
 
 /*
  * core_pmus:  A PMU belongs to core_pmus if it's name is "cpu" or it's sysfs
@@ -350,6 +351,82 @@ struct perf_pmu *perf_pmus__scan_core(struct perf_pmu *pmu)
 	return NULL;
 }
 
+struct perf_pmu *perf_pmus__scan_for_event(struct perf_pmu *pmu, const char *event)
+{
+	bool use_core_pmus = !pmu || pmu->is_core;
+
+	if (!pmu) {
+		/* Hwmon filename values that aren't used. */
+		enum hwmon_type type;
+		int number;
+		/*
+		 * Core PMUs, other sysfs PMUs and tool PMU can take all event
+		 * types or aren't wother optimizing for.
+		 */
+		unsigned int to_read_pmus =  PERF_TOOL_PMU_TYPE_PE_CORE_MASK |
+			PERF_TOOL_PMU_TYPE_PE_OTHER_MASK |
+			PERF_TOOL_PMU_TYPE_TOOL_MASK;
+
+		/* Could the event be a hwmon event? */
+		if (parse_hwmon_filename(event, &type, &number, /*item=*/NULL, /*alarm=*/NULL))
+			to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK;
+
+		pmu_read_sysfs(to_read_pmus);
+		pmu = list_prepare_entry(pmu, &core_pmus, list);
+	}
+	if (use_core_pmus) {
+		list_for_each_entry_continue(pmu, &core_pmus, list)
+			return pmu;
+
+		pmu = NULL;
+		pmu = list_prepare_entry(pmu, &other_pmus, list);
+	}
+	list_for_each_entry_continue(pmu, &other_pmus, list)
+		return pmu;
+	return NULL;
+}
+
+struct perf_pmu *perf_pmus__scan_matching_wildcard(struct perf_pmu *pmu, const char *wildcard)
+{
+	bool use_core_pmus = !pmu || pmu->is_core;
+
+	if (!pmu) {
+		/*
+		 * Core PMUs, other sysfs PMUs and tool PMU can have any name or
+		 * aren't wother optimizing for.
+		 */
+		unsigned int to_read_pmus =  PERF_TOOL_PMU_TYPE_PE_CORE_MASK |
+			PERF_TOOL_PMU_TYPE_PE_OTHER_MASK |
+			PERF_TOOL_PMU_TYPE_TOOL_MASK;
+
+		/*
+		 * Hwmon PMUs have an alias from a sysfs name like hwmon0,
+		 * hwmon1, etc. or have a name of hwmon_<name>. They therefore
+		 * can only have a wildcard match if the wildcard begins with
+		 * "hwmon".
+		 */
+		if (strisglob(wildcard) ||
+		    (strlen(wildcard) >= 5 && strncmp("hwmon", wildcard, 5) == 0))
+			to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK;
+
+		pmu_read_sysfs(to_read_pmus);
+		pmu = list_prepare_entry(pmu, &core_pmus, list);
+	}
+	if (use_core_pmus) {
+		list_for_each_entry_continue(pmu, &core_pmus, list) {
+			if (perf_pmu__wildcard_match(pmu, wildcard))
+				return pmu;
+		}
+		pmu = NULL;
+		pmu = list_prepare_entry(pmu, &other_pmus, list);
+	}
+	list_for_each_entry_continue(pmu, &other_pmus, list) {
+		if (perf_pmu__wildcard_match(pmu, wildcard))
+			return pmu;
+	}
+	return NULL;
+}
+
 static struct perf_pmu *perf_pmus__scan_skip_duplicates(struct perf_pmu *pmu)
 {
 	bool use_core_pmus = !pmu || pmu->is_core;
diff --git a/tools/perf/util/pmus.h b/tools/perf/util/pmus.h
index 8def20e615ad..2794d8c3a466 100644
--- a/tools/perf/util/pmus.h
+++ b/tools/perf/util/pmus.h
@@ -19,6 +19,8 @@ struct perf_pmu *perf_pmus__find_by_type(unsigned int type);
 
 struct perf_pmu *perf_pmus__scan(struct perf_pmu *pmu);
 struct perf_pmu *perf_pmus__scan_core(struct perf_pmu *pmu);
+struct perf_pmu *perf_pmus__scan_for_event(struct perf_pmu *pmu, const char *event);
+struct perf_pmu *perf_pmus__scan_matching_wildcard(struct perf_pmu *pmu, const char *wildcard);
 
 const struct perf_pmu *perf_pmus__pmu_for_pmu_filter(const char *str);
 

From 28917cb17f9df9c2fc83449feefa375609b38fa4 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 16:18:36 -0700
Subject: [PATCH 047/179] perf drm_pmu: Add a tool like PMU to expose DRM
 information

DRM clients expose information through usage stats as documented in
Documentation/gpu/drm-usage-stats.rst (available online at
https://docs.kernel.org/gpu/drm-usage-stats.html). Add a tool like
PMU, similar to the hwmon PMU, that exposes DRM information. For
example on a tigerlake laptop:
```
$ perf list drm

List of pre-defined events (to be used in -e or -M):

drm:
  drm-active-stolen-system0
       [Total memory active in one or more engines. Unit: drm_i915]
  drm-active-system0
       [Total memory active in one or more engines. Unit: drm_i915]
  drm-engine-capacity-video
       [Engine capacity. Unit: drm_i915]
  drm-engine-copy
       [Utilization in ns. Unit: drm_i915]
  drm-engine-render
       [Utilization in ns. Unit: drm_i915]
  drm-engine-video
       [Utilization in ns. Unit: drm_i915]
  drm-engine-video-enhance
       [Utilization in ns. Unit: drm_i915]
  drm-purgeable-stolen-system0
       [Size of resident and purgeable memory bufers. Unit: drm_i915]
  drm-purgeable-system0
       [Size of resident and purgeable memory bufers. Unit: drm_i915]
  drm-resident-stolen-system0
       [Size of resident memory bufers. Unit: drm_i915]
  drm-resident-system0
       [Size of resident memory bufers. Unit: drm_i915]
  drm-shared-stolen-system0
       [Size of shared memory bufers. Unit: drm_i915]
  drm-shared-system0
       [Size of shared memory bufers. Unit: drm_i915]
  drm-total-stolen-system0
       [Size of shared and private memory. Unit: drm_i915]
  drm-total-system0
       [Size of shared and private memory. Unit: drm_i915]
```

System wide data can be gathered:
```
$ perf stat -x, -I 1000 -e drm-active-stolen-system0,drm-active-system0,drm-engine-capacity-video,drm-engine-copy,drm-engine-render,drm-engine-video,drm-engine-video-enhance,drm-purgeable-stolen-system0,drm-purgeable-system0,drm-resident-stolen-system0,drm-resident-system0,drm-shared-stolen-system0,drm-shared-system0,drm-total-stolen-system0,drm-total-system0
1.000904910,0,bytes,drm-active-stolen-system0,1,100.00,,
1.000904910,0,bytes,drm-active-system0,1,100.00,,
1.000904910,36,capacity,drm-engine-capacity-video,1,100.00,,
1.000904910,0,ns,drm-engine-copy,1,100.00,,
1.000904910,1472970566175,ns,drm-engine-render,1,100.00,,
1.000904910,0,ns,drm-engine-video,1,100.00,,
1.000904910,0,ns,drm-engine-video-enhance,1,100.00,,
1.000904910,0,bytes,drm-purgeable-stolen-system0,1,100.00,,
1.000904910,38199296,bytes,drm-purgeable-system0,1,100.00,,
1.000904910,0,bytes,drm-resident-stolen-system0,1,100.00,,
1.000904910,4643196928,bytes,drm-resident-system0,1,100.00,,
1.000904910,0,bytes,drm-shared-stolen-system0,1,100.00,,
1.000904910,1886871552,bytes,drm-shared-system0,1,100.00,,
1.000904910,0,bytes,drm-total-stolen-system0,1,100.00,,
1.000904910,4643196928,bytes,drm-total-system0,1,100.00,,
2.264426839,0,bytes,drm-active-stolen-system0,1,100.00,,
```

Or for a particular process:
```
$ perf stat -x, -I 1000 -e drm-active-stolen-system0,drm-active-system0,drm-engine-capacity-video,drm-engine-copy,drm-engine-render,drm-engine-video,drm-engine-video-enhance,drm-purgeable-stolen-system0,drm-purgeable-system0,drm-resident-stolen-system0,drm-resident-system0,drm-shared-stolen-system0,drm-shared-system0,drm-total-stolen-system0,drm-total-system0 -p 200027
1.001040274,0,bytes,drm-active-stolen-system0,6,100.00,,
1.001040274,0,bytes,drm-active-system0,6,100.00,,
1.001040274,12,capacity,drm-engine-capacity-video,6,100.00,,
1.001040274,0,ns,drm-engine-copy,6,100.00,,
1.001040274,1542300,ns,drm-engine-render,6,100.00,,
1.001040274,0,ns,drm-engine-video,6,100.00,,
1.001040274,0,ns,drm-engine-video-enhance,6,100.00,,
1.001040274,0,bytes,drm-purgeable-stolen-system0,6,100.00,,
1.001040274,13516800,bytes,drm-purgeable-system0,6,100.00,,
1.001040274,0,bytes,drm-resident-stolen-system0,6,100.00,,
1.001040274,27746304,bytes,drm-resident-system0,6,100.00,,
1.001040274,0,bytes,drm-shared-stolen-system0,6,100.00,,
1.001040274,0,bytes,drm-shared-system0,6,100.00,,
1.001040274,0,bytes,drm-total-stolen-system0,6,100.00,,
1.001040274,27746304,bytes,drm-total-system0,6,100.00,,
2.016629075,0,bytes,drm-active-stolen-system0,6,100.00,,
```

As with the hwmon PMU, high numbered PMU types are used to encode
multiple possible "DRM" PMUs. The appropriate fdinfo is found by
scanning /proc and filtering which fdinfos to read with stat. To avoid
some unneeding scanning, events not starting with "drm-" are
ignored. The patch builds on commit 57e13264dcea ("perf pmus:
Restructure pmu_read_sysfs to scan fewer PMUs") and later so that only
if full wild carding is being done, the PMU starts with "drm_" or the
event starts with "drm-" will /proc be scanned. That is there should
be little to no cost in this PMU unless DRM events are requested.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624231837.179536-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/Build     |   1 +
 tools/perf/util/drm_pmu.c | 686 ++++++++++++++++++++++++++++++++++++++
 tools/perf/util/drm_pmu.h |  39 +++
 tools/perf/util/evsel.c   |   9 +
 tools/perf/util/pmu.c     |  15 +
 tools/perf/util/pmu.h     |   4 +-
 tools/perf/util/pmus.c    |  30 +-
 7 files changed, 779 insertions(+), 5 deletions(-)
 create mode 100644 tools/perf/util/drm_pmu.c
 create mode 100644 tools/perf/util/drm_pmu.h

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 7910d908c814..8a23eb767fb2 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -84,6 +84,7 @@ perf-util-y += pmu.o
 perf-util-y += pmus.o
 perf-util-y += pmu-flex.o
 perf-util-y += pmu-bison.o
+perf-util-y += drm_pmu.o
 perf-util-y += hwmon_pmu.o
 perf-util-y += tool_pmu.o
 perf-util-y += svghelper.o
diff --git a/tools/perf/util/drm_pmu.c b/tools/perf/util/drm_pmu.c
new file mode 100644
index 000000000000..17385a10005b
--- /dev/null
+++ b/tools/perf/util/drm_pmu.c
@@ -0,0 +1,686 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+#include "drm_pmu.h"
+#include "counts.h"
+#include "cpumap.h"
+#include "debug.h"
+#include "evsel.h"
+#include "pmu.h"
+#include <perf/threadmap.h>
+#include <api/fs/fs.h>
+#include <api/io.h>
+#include <ctype.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/unistd.h>
+#include <linux/kcmp.h>
+#include <linux/zalloc.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+enum drm_pmu_unit {
+	DRM_PMU_UNIT_BYTES,
+	DRM_PMU_UNIT_CAPACITY,
+	DRM_PMU_UNIT_CYCLES,
+	DRM_PMU_UNIT_HZ,
+	DRM_PMU_UNIT_NS,
+
+	DRM_PMU_UNIT_MAX,
+};
+
+struct drm_pmu_event {
+	const char *name;
+	const char *desc;
+	enum drm_pmu_unit unit;
+};
+
+struct drm_pmu {
+	struct perf_pmu pmu;
+	struct drm_pmu_event *events;
+	int num_events;
+};
+
+static const char * const drm_pmu_unit_strs[DRM_PMU_UNIT_MAX] = {
+	"bytes",
+	"capacity",
+	"cycles",
+	"hz",
+	"ns",
+};
+
+static const char * const drm_pmu_scale_unit_strs[DRM_PMU_UNIT_MAX] = {
+	"1bytes",
+	"1capacity",
+	"1cycles",
+	"1hz",
+	"1ns",
+};
+
+bool perf_pmu__is_drm(const struct perf_pmu *pmu)
+{
+	return pmu && pmu->type >= PERF_PMU_TYPE_DRM_START &&
+		pmu->type <= PERF_PMU_TYPE_DRM_END;
+}
+
+bool evsel__is_drm(const struct evsel *evsel)
+{
+	return perf_pmu__is_drm(evsel->pmu);
+}
+
+static struct drm_pmu *add_drm_pmu(struct list_head *pmus, char *line, size_t line_len)
+{
+	struct drm_pmu *drm;
+	struct perf_pmu *pmu;
+	const char *name;
+	__u32 max_drm_pmu_type = 0, type;
+	int i = 12;
+
+	if (line[line_len - 1] == '\n')
+		line[line_len - 1] = '\0';
+	while (isspace(line[i]))
+		i++;
+
+	line[--i] = '_';
+	line[--i] = 'm';
+	line[--i] = 'r';
+	line[--i] = 'd';
+	name = &line[i];
+
+	list_for_each_entry(pmu, pmus, list) {
+		if (!perf_pmu__is_drm(pmu))
+			continue;
+		if (pmu->type > max_drm_pmu_type)
+			max_drm_pmu_type = pmu->type;
+		if (!strcmp(pmu->name, name)) {
+			/* PMU already exists. */
+			return NULL;
+		}
+	}
+
+	if (max_drm_pmu_type != 0)
+		type = max_drm_pmu_type + 1;
+	else
+		type = PERF_PMU_TYPE_DRM_START;
+
+	if (type > PERF_PMU_TYPE_DRM_END) {
+		zfree(&drm);
+		pr_err("Unable to encode DRM PMU type for %s\n", name);
+		return NULL;
+	}
+
+	drm = zalloc(sizeof(*drm));
+	if (!drm)
+		return NULL;
+
+	if (perf_pmu__init(&drm->pmu, type, name) != 0) {
+		perf_pmu__delete(&drm->pmu);
+		return NULL;
+	}
+
+	drm->pmu.cpus = perf_cpu_map__new("0");
+	if (!drm->pmu.cpus) {
+		perf_pmu__delete(&drm->pmu);
+		return NULL;
+	}
+	return drm;
+}
+
+
+static bool starts_with(const char *str, const char *prefix)
+{
+	return !strncmp(prefix, str, strlen(prefix));
+}
+
+static int add_event(struct drm_pmu_event **events, int *num_events,
+		     const char *line, enum drm_pmu_unit unit, const char *desc)
+{
+	const char *colon = strchr(line, ':');
+	struct drm_pmu_event *tmp;
+
+	if (!colon)
+		return -EINVAL;
+
+	tmp = reallocarray(*events, *num_events + 1, sizeof(struct drm_pmu_event));
+	if (!tmp)
+		return -ENOMEM;
+	tmp[*num_events].unit = unit;
+	tmp[*num_events].desc = desc;
+	tmp[*num_events].name = strndup(line, colon - line);
+	if (!tmp[*num_events].name)
+		return -ENOMEM;
+	(*num_events)++;
+	*events = tmp;
+	return 0;
+}
+
+static int read_drm_pmus_cb(void *args, int fdinfo_dir_fd, const char *fd_name)
+{
+	struct list_head *pmus = args;
+	char buf[640];
+	struct io io;
+	char *line = NULL;
+	size_t line_len;
+	struct drm_pmu *drm = NULL;
+	struct drm_pmu_event *events = NULL;
+	int num_events = 0;
+
+	io__init(&io, openat(fdinfo_dir_fd, fd_name, O_RDONLY), buf, sizeof(buf));
+	if (io.fd == -1) {
+		/* Failed to open file, ignore. */
+		return 0;
+	}
+
+	while (io__getline(&io, &line, &line_len) > 0) {
+		if (starts_with(line, "drm-driver:")) {
+			drm = add_drm_pmu(pmus, line, line_len);
+			if (!drm)
+				break;
+			continue;
+		}
+		/*
+		 * Note the string matching below is alphabetical, with more
+		 * specific matches appearing before less specific.
+		 */
+		if (starts_with(line, "drm-active-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Total memory active in one or more engines");
+			continue;
+		}
+		if (starts_with(line, "drm-cycles-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_CYCLES,
+				"Busy cycles");
+			continue;
+		}
+		if (starts_with(line, "drm-engine-capacity-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_CAPACITY,
+				"Engine capacity");
+			continue;
+		}
+		if (starts_with(line, "drm-engine-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_NS,
+				  "Utilization in ns");
+			continue;
+		}
+		if (starts_with(line, "drm-maxfreq-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_HZ,
+				  "Maximum frequency");
+			continue;
+		}
+		if (starts_with(line, "drm-purgeable-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Size of resident and purgeable memory bufers");
+			continue;
+		}
+		if (starts_with(line, "drm-resident-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Size of resident memory bufers");
+			continue;
+		}
+		if (starts_with(line, "drm-shared-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Size of shared memory bufers");
+			continue;
+		}
+		if (starts_with(line, "drm-total-cycles-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Total busy cycles");
+			continue;
+		}
+		if (starts_with(line, "drm-total-")) {
+			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
+				  "Size of shared and private memory");
+			continue;
+		}
+		if (verbose > 1 && starts_with(line, "drm-") &&
+		    !starts_with(line, "drm-client-id:") &&
+		    !starts_with(line, "drm-pdev:"))
+			pr_debug("Unhandled DRM PMU fdinfo line match '%s'\n", line);
+	}
+	if (drm) {
+		drm->events = events;
+		drm->num_events = num_events;
+		list_add_tail(&drm->pmu.list, pmus);
+	}
+	free(line);
+	if (io.fd != -1)
+		close(io.fd);
+	return 0;
+}
+
+void drm_pmu__exit(struct perf_pmu *pmu)
+{
+	struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+
+	free(drm->events);
+}
+
+bool drm_pmu__have_event(const struct perf_pmu *pmu, const char *name)
+{
+	struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+
+	if (!starts_with(name, "drm-"))
+		return false;
+
+	for (int i = 0; i < drm->num_events; i++) {
+		if (!strcasecmp(drm->events[i].name, name))
+			return true;
+	}
+	return false;
+}
+
+int drm_pmu__for_each_event(const struct perf_pmu *pmu, void *state, pmu_event_callback cb)
+{
+	struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+
+	for (int i = 0; i < drm->num_events; i++) {
+		char encoding_buf[128];
+		struct pmu_event_info info = {
+			.pmu = pmu,
+			.name = drm->events[i].name,
+			.alias = NULL,
+			.scale_unit = drm_pmu_scale_unit_strs[drm->events[i].unit],
+			.desc = drm->events[i].desc,
+			.long_desc = NULL,
+			.encoding_desc = encoding_buf,
+			.topic = "drm",
+			.pmu_name = pmu->name,
+			.event_type_desc = "DRM event",
+		};
+		int ret;
+
+		snprintf(encoding_buf, sizeof(encoding_buf), "%s/config=0x%x/", pmu->name, i);
+
+		ret = cb(state, &info);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
+size_t drm_pmu__num_events(const struct perf_pmu *pmu)
+{
+	const struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+
+	return drm->num_events;
+}
+
+static int drm_pmu__index_for_event(const struct drm_pmu *drm, const char *name)
+{
+	for (int i = 0; i < drm->num_events; i++) {
+		if (!strcmp(drm->events[i].name, name))
+			return i;
+	}
+	return -1;
+}
+
+static int drm_pmu__config_term(const struct drm_pmu *drm,
+				  struct perf_event_attr *attr,
+				  struct parse_events_term *term,
+				  struct parse_events_error *err)
+{
+	if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER) {
+		int i = drm_pmu__index_for_event(drm, term->config);
+
+		if (i >= 0) {
+			attr->config = i;
+			return 0;
+		}
+	}
+	if (err) {
+		char *err_str;
+
+		parse_events_error__handle(err, term->err_val,
+					asprintf(&err_str,
+						"unexpected drm event term (%s) %s",
+						parse_events__term_type_str(term->type_term),
+						term->config) < 0
+					? strdup("unexpected drm event term")
+					: err_str,
+					NULL);
+	}
+	return -EINVAL;
+}
+
+int drm_pmu__config_terms(const struct perf_pmu *pmu,
+			    struct perf_event_attr *attr,
+			    struct parse_events_terms *terms,
+			    struct parse_events_error *err)
+{
+	struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+	struct parse_events_term *term;
+
+	list_for_each_entry(term, &terms->terms, list) {
+		if (drm_pmu__config_term(drm, attr, term, err))
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+int drm_pmu__check_alias(const struct perf_pmu *pmu, struct parse_events_terms *terms,
+			 struct perf_pmu_info *info, struct parse_events_error *err)
+{
+	struct drm_pmu *drm = container_of(pmu, struct drm_pmu, pmu);
+	struct parse_events_term *term =
+		list_first_entry(&terms->terms, struct parse_events_term, list);
+
+	if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER) {
+		int i = drm_pmu__index_for_event(drm, term->config);
+
+		if (i >= 0) {
+			info->unit = drm_pmu_unit_strs[drm->events[i].unit];
+			info->scale = 1;
+			return 0;
+		}
+	}
+	if (err) {
+		char *err_str;
+
+		parse_events_error__handle(err, term->err_val,
+					asprintf(&err_str,
+						"unexpected drm event term (%s) %s",
+						parse_events__term_type_str(term->type_term),
+						term->config) < 0
+					? strdup("unexpected drm event term")
+					: err_str,
+					NULL);
+	}
+	return -EINVAL;
+}
+
+struct minor_info {
+	unsigned int *minors;
+	int minors_num, minors_len;
+};
+
+static int for_each_drm_fdinfo_in_dir(int (*cb)(void *args, int fdinfo_dir_fd, const char *fd_name),
+				      void *args, int proc_dir, const char *pid_name,
+				      struct minor_info *minors)
+{
+	char buf[256];
+	DIR *fd_dir;
+	struct dirent *fd_entry;
+	int fd_dir_fd, fdinfo_dir_fd = -1;
+
+
+	scnprintf(buf, sizeof(buf), "%s/fd", pid_name);
+	fd_dir_fd = openat(proc_dir, buf, O_DIRECTORY);
+	if (fd_dir_fd == -1)
+		return 0; /* Presumably lost race to open. */
+	fd_dir = fdopendir(fd_dir_fd);
+	if (!fd_dir) {
+		close(fd_dir_fd);
+		return -ENOMEM;
+	}
+	while ((fd_entry = readdir(fd_dir)) != NULL) {
+		struct stat stat;
+		unsigned int minor;
+		bool is_dup = false;
+		int ret;
+
+		if (fd_entry->d_type != DT_LNK)
+			continue;
+
+		if (fstatat(fd_dir_fd, fd_entry->d_name, &stat, 0) != 0)
+			continue;
+
+		if ((stat.st_mode & S_IFMT) != S_IFCHR || major(stat.st_rdev) != 226)
+			continue;
+
+		minor = minor(stat.st_rdev);
+		for (int i = 0; i < minors->minors_num; i++) {
+			if (minor(stat.st_rdev) == minors->minors[i]) {
+				is_dup = true;
+				break;
+			}
+		}
+		if (is_dup)
+			continue;
+
+		if (minors->minors_num == minors->minors_len) {
+			unsigned int *tmp = reallocarray(minors->minors, minors->minors_len + 4,
+							 sizeof(unsigned int));
+
+			if (tmp) {
+				minors->minors = tmp;
+				minors->minors_len += 4;
+			}
+		}
+		minors->minors[minors->minors_num++] = minor;
+		if (fdinfo_dir_fd == -1) {
+			/* Open fdinfo dir if we have a DRM fd. */
+			scnprintf(buf, sizeof(buf), "%s/fdinfo", pid_name);
+			fdinfo_dir_fd = openat(proc_dir, buf, O_DIRECTORY);
+			if (fdinfo_dir_fd == -1)
+				continue;
+		}
+		ret = cb(args, fdinfo_dir_fd, fd_entry->d_name);
+		if (ret)
+			return ret;
+	}
+	if (fdinfo_dir_fd != -1)
+		close(fdinfo_dir_fd);
+	closedir(fd_dir);
+	return 0;
+}
+
+static int for_each_drm_fdinfo(bool skip_all_duplicates,
+			       int (*cb)(void *args, int fdinfo_dir_fd, const char *fd_name),
+			       void *args)
+{
+	DIR *proc_dir;
+	struct dirent *proc_entry;
+	int ret;
+	/*
+	 * minors maintains an array of DRM minor device numbers seen for a pid,
+	 * or for all pids if skip_all_duplicates is true, so that duplicates
+	 * are ignored.
+	 */
+	struct minor_info minors = {
+		.minors = NULL,
+		.minors_num = 0,
+		.minors_len = 0,
+	};
+
+	proc_dir = opendir(procfs__mountpoint());
+	if (!proc_dir)
+		return 0;
+
+	/* Walk through the /proc directory. */
+	while ((proc_entry = readdir(proc_dir)) != NULL) {
+		if (proc_entry->d_type != DT_DIR ||
+		    !isdigit(proc_entry->d_name[0]))
+			continue;
+		if (!skip_all_duplicates) {
+			/* Reset the seen minor numbers for each pid. */
+			minors.minors_num = 0;
+		}
+		ret = for_each_drm_fdinfo_in_dir(cb, args,
+						 dirfd(proc_dir), proc_entry->d_name,
+						 &minors);
+		if (ret)
+			break;
+	}
+	free(minors.minors);
+	closedir(proc_dir);
+	return ret;
+}
+
+int perf_pmus__read_drm_pmus(struct list_head *pmus)
+{
+	return for_each_drm_fdinfo(/*skip_all_duplicates=*/true, read_drm_pmus_cb, pmus);
+}
+
+int evsel__drm_pmu_open(struct evsel *evsel,
+			struct perf_thread_map *threads,
+			int start_cpu_map_idx, int end_cpu_map_idx)
+{
+	(void)evsel;
+	(void)threads;
+	(void)start_cpu_map_idx;
+	(void)end_cpu_map_idx;
+	return 0;
+}
+
+static uint64_t read_count_and_apply_unit(const char *count_and_unit, enum drm_pmu_unit unit)
+{
+	char *unit_ptr = NULL;
+	uint64_t count = strtoul(count_and_unit, &unit_ptr, 10);
+
+	if (!unit_ptr)
+		return 0;
+
+	while (isblank(*unit_ptr))
+		unit_ptr++;
+
+	switch (unit) {
+	case DRM_PMU_UNIT_BYTES:
+		if (*unit_ptr == '\0')
+			assert(count == 0); /* Generally undocumented, happens for 0. */
+		else if (!strcmp(unit_ptr, "KiB"))
+			count *= 1024;
+		else if (!strcmp(unit_ptr, "MiB"))
+			count *= 1024 * 1024;
+		else
+			pr_err("Unexpected bytes unit '%s'\n", unit_ptr);
+		break;
+	case DRM_PMU_UNIT_CAPACITY:
+		/* No units expected. */
+		break;
+	case DRM_PMU_UNIT_CYCLES:
+		/* No units expected. */
+		break;
+	case DRM_PMU_UNIT_HZ:
+		if (!strcmp(unit_ptr, "Hz"))
+			count *= 1;
+		else if (!strcmp(unit_ptr, "KHz"))
+			count *= 1000;
+		else if (!strcmp(unit_ptr, "MHz"))
+			count *= 1000000;
+		else
+			pr_err("Unexpected hz unit '%s'\n", unit_ptr);
+		break;
+	case DRM_PMU_UNIT_NS:
+		/* Only unit ns expected. */
+		break;
+	case DRM_PMU_UNIT_MAX:
+	default:
+		break;
+	}
+	return count;
+}
+
+static uint64_t read_drm_event(int fdinfo_dir_fd, const char *fd_name,
+			       const char *match, enum drm_pmu_unit unit)
+{
+	char buf[640];
+	struct io io;
+	char *line = NULL;
+	size_t line_len;
+	uint64_t count = 0;
+
+	io__init(&io, openat(fdinfo_dir_fd, fd_name, O_RDONLY), buf, sizeof(buf));
+	if (io.fd == -1) {
+		/* Failed to open file, ignore. */
+		return 0;
+	}
+	while (io__getline(&io, &line, &line_len) > 0) {
+		size_t i = strlen(match);
+
+		if (strncmp(line, match, i))
+			continue;
+		if (line[i] != ':')
+			continue;
+		while (isblank(line[++i]))
+			;
+		if (line[line_len - 1] == '\n')
+			line[line_len - 1] = '\0';
+		count = read_count_and_apply_unit(&line[i], unit);
+		break;
+	}
+	free(line);
+	close(io.fd);
+	return count;
+}
+
+struct read_drm_event_cb_args {
+	const char *match;
+	uint64_t count;
+	enum drm_pmu_unit unit;
+};
+
+static int read_drm_event_cb(void *vargs, int fdinfo_dir_fd, const char *fd_name)
+{
+	struct read_drm_event_cb_args *args = vargs;
+
+	args->count += read_drm_event(fdinfo_dir_fd, fd_name, args->match, args->unit);
+	return 0;
+}
+
+static uint64_t drm_pmu__read_system_wide(struct drm_pmu *drm, struct evsel *evsel)
+{
+	struct read_drm_event_cb_args args = {
+		.count = 0,
+		.match = drm->events[evsel->core.attr.config].name,
+		.unit = drm->events[evsel->core.attr.config].unit,
+	};
+
+	for_each_drm_fdinfo(/*skip_all_duplicates=*/false, read_drm_event_cb, &args);
+	return args.count;
+}
+
+static uint64_t drm_pmu__read_for_pid(struct drm_pmu *drm, struct evsel *evsel, int pid)
+{
+	struct read_drm_event_cb_args args = {
+		.count = 0,
+		.match = drm->events[evsel->core.attr.config].name,
+		.unit = drm->events[evsel->core.attr.config].unit,
+	};
+	struct minor_info minors = {
+		.minors = NULL,
+		.minors_num = 0,
+		.minors_len = 0,
+	};
+	int proc_dir = open(procfs__mountpoint(), O_DIRECTORY);
+	char pid_name[12];
+	int ret;
+
+	if (proc_dir < 0)
+		return 0;
+
+	snprintf(pid_name, sizeof(pid_name), "%d", pid);
+	ret = for_each_drm_fdinfo_in_dir(read_drm_event_cb, &args, proc_dir, pid_name, &minors);
+	free(minors.minors);
+	close(proc_dir);
+	return ret == 0 ? args.count : 0;
+}
+
+int evsel__drm_pmu_read(struct evsel *evsel, int cpu_map_idx, int thread)
+{
+	struct drm_pmu *drm = container_of(evsel->pmu, struct drm_pmu, pmu);
+	struct perf_counts_values *count, *old_count = NULL;
+	int pid = perf_thread_map__pid(evsel->core.threads, thread);
+	uint64_t counter;
+
+	if (pid != -1)
+		counter = drm_pmu__read_for_pid(drm, evsel, pid);
+	else
+		counter = drm_pmu__read_system_wide(drm, evsel);
+
+	if (evsel->prev_raw_counts)
+		old_count = perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread);
+
+	count = perf_counts(evsel->counts, cpu_map_idx, thread);
+	if (old_count) {
+		count->val = old_count->val + counter;
+		count->run = old_count->run + 1;
+		count->ena = old_count->ena + 1;
+	} else {
+		count->val = counter;
+		count->run++;
+		count->ena++;
+	}
+	return 0;
+}
diff --git a/tools/perf/util/drm_pmu.h b/tools/perf/util/drm_pmu.h
new file mode 100644
index 000000000000..e7f366fca8a4
--- /dev/null
+++ b/tools/perf/util/drm_pmu.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#ifndef __DRM_PMU_H
+#define __DRM_PMU_H
+/*
+ * Linux DRM clients expose information through usage stats as documented in
+ * Documentation/gpu/drm-usage-stats.rst (available online at
+ * https://docs.kernel.org/gpu/drm-usage-stats.html). This is a tool like PMU
+ * that exposes DRM information.
+ */
+
+#include "pmu.h"
+#include <stdbool.h>
+
+struct list_head;
+struct perf_thread_map;
+
+void drm_pmu__exit(struct perf_pmu *pmu);
+bool drm_pmu__have_event(const struct perf_pmu *pmu, const char *name);
+int drm_pmu__for_each_event(const struct perf_pmu *pmu, void *state, pmu_event_callback cb);
+size_t drm_pmu__num_events(const struct perf_pmu *pmu);
+int drm_pmu__config_terms(const struct perf_pmu *pmu,
+			  struct perf_event_attr *attr,
+			  struct parse_events_terms *terms,
+			  struct parse_events_error *err);
+int drm_pmu__check_alias(const struct perf_pmu *pmu, struct parse_events_terms *terms,
+			 struct perf_pmu_info *info, struct parse_events_error *err);
+
+
+bool perf_pmu__is_drm(const struct perf_pmu *pmu);
+bool evsel__is_drm(const struct evsel *evsel);
+
+int perf_pmus__read_drm_pmus(struct list_head *pmus);
+
+int evsel__drm_pmu_open(struct evsel *evsel,
+			struct perf_thread_map *threads,
+			int start_cpu_map_idx, int end_cpu_map_idx);
+int evsel__drm_pmu_read(struct evsel *evsel, int cpu_map_idx, int thread);
+
+#endif /* __DRM_PMU_H */
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index d55482f094bf..9c50c3960487 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -56,6 +56,7 @@
 #include "off_cpu.h"
 #include "pmu.h"
 #include "pmus.h"
+#include "drm_pmu.h"
 #include "hwmon_pmu.h"
 #include "tool_pmu.h"
 #include "rlimit.h"
@@ -1889,6 +1890,9 @@ int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread)
 	if (evsel__is_hwmon(evsel))
 		return evsel__hwmon_pmu_read(evsel, cpu_map_idx, thread);
 
+	if (evsel__is_drm(evsel))
+		return evsel__drm_pmu_read(evsel, cpu_map_idx, thread);
+
 	if (evsel__is_retire_lat(evsel))
 		return evsel__tpebs_read(evsel, cpu_map_idx, thread);
 
@@ -2610,6 +2614,11 @@ static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus,
 					     start_cpu_map_idx,
 					     end_cpu_map_idx);
 	}
+	if (evsel__is_drm(evsel)) {
+		return evsel__drm_pmu_open(evsel, threads,
+					   start_cpu_map_idx,
+					   end_cpu_map_idx);
+	}
 
 	for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) {
 		cpu = perf_cpu_map__cpu(cpus, idx);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 609828513f6c..f795883c233f 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -20,6 +20,7 @@
 #include "debug.h"
 #include "evsel.h"
 #include "pmu.h"
+#include "drm_pmu.h"
 #include "hwmon_pmu.h"
 #include "pmus.h"
 #include "tool_pmu.h"
@@ -1627,6 +1628,8 @@ int perf_pmu__config_terms(const struct perf_pmu *pmu,
 
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__config_terms(pmu, attr, terms, err);
+	if (perf_pmu__is_drm(pmu))
+		return drm_pmu__config_terms(pmu, attr, terms, err);
 
 	list_for_each_entry(term, &terms->terms, list) {
 		if (pmu_config_term(pmu, attr, term, terms, zero, apply_hardcoded, err))
@@ -1767,6 +1770,10 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct parse_events_terms *head_
 		ret = hwmon_pmu__check_alias(head_terms, info, err);
 		goto out;
 	}
+	if (perf_pmu__is_drm(pmu)) {
+		ret = drm_pmu__check_alias(pmu, head_terms, info, err);
+		goto out;
+	}
 
 	/* Fake PMU doesn't rewrite terms. */
 	if (perf_pmu__is_fake(pmu))
@@ -1949,6 +1956,8 @@ bool perf_pmu__have_event(struct perf_pmu *pmu, const char *name)
 		return false;
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__have_event(pmu, name);
+	if (perf_pmu__is_drm(pmu))
+		return drm_pmu__have_event(pmu, name);
 	if (perf_pmu__find_alias(pmu, name, /*load=*/ true) != NULL)
 		return true;
 	if (pmu->cpu_aliases_added || !pmu->events_table)
@@ -1962,6 +1971,8 @@ size_t perf_pmu__num_events(struct perf_pmu *pmu)
 
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__num_events(pmu);
+	if (perf_pmu__is_drm(pmu))
+		return drm_pmu__num_events(pmu);
 
 	pmu_aliases_parse(pmu);
 	nr = pmu->sysfs_aliases + pmu->sys_json_aliases;
@@ -2030,6 +2041,8 @@ int perf_pmu__for_each_event(struct perf_pmu *pmu, bool skip_duplicate_pmus,
 
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__for_each_event(pmu, state, cb);
+	if (perf_pmu__is_drm(pmu))
+		return drm_pmu__for_each_event(pmu, state, cb);
 
 	strbuf_init(&sb, /*hint=*/ 0);
 	pmu_aliases_parse(pmu);
@@ -2511,6 +2524,8 @@ void perf_pmu__delete(struct perf_pmu *pmu)
 
 	if (perf_pmu__is_hwmon(pmu))
 		hwmon_pmu__exit(pmu);
+	else if (perf_pmu__is_drm(pmu))
+		drm_pmu__exit(pmu);
 
 	perf_pmu__del_formats(&pmu->format);
 	perf_pmu__del_aliases(pmu);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 71b8636fd07d..a4a08192154c 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -39,7 +39,9 @@ struct perf_pmu_caps {
 
 enum {
 	PERF_PMU_TYPE_PE_START    = 0,
-	PERF_PMU_TYPE_PE_END      = 0xFFFEFFFF,
+	PERF_PMU_TYPE_PE_END      = 0xFFFDFFFF,
+	PERF_PMU_TYPE_DRM_START   = 0xFFFE0000,
+	PERF_PMU_TYPE_DRM_END     = 0xFFFEFFFF,
 	PERF_PMU_TYPE_HWMON_START = 0xFFFF0000,
 	PERF_PMU_TYPE_HWMON_END   = 0xFFFFFFFD,
 	PERF_PMU_TYPE_TOOL = 0xFFFFFFFE,
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index e0094f56b8e7..81c2ed689db2 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -12,6 +12,7 @@
 #include <unistd.h>
 #include "cpumap.h"
 #include "debug.h"
+#include "drm_pmu.h"
 #include "evsel.h"
 #include "pmus.h"
 #include "pmu.h"
@@ -43,16 +44,19 @@ enum perf_tool_pmu_type {
 	PERF_TOOL_PMU_TYPE_PE_OTHER,
 	PERF_TOOL_PMU_TYPE_TOOL,
 	PERF_TOOL_PMU_TYPE_HWMON,
+	PERF_TOOL_PMU_TYPE_DRM,
 
 #define PERF_TOOL_PMU_TYPE_PE_CORE_MASK (1 << PERF_TOOL_PMU_TYPE_PE_CORE)
 #define PERF_TOOL_PMU_TYPE_PE_OTHER_MASK (1 << PERF_TOOL_PMU_TYPE_PE_OTHER)
 #define PERF_TOOL_PMU_TYPE_TOOL_MASK (1 << PERF_TOOL_PMU_TYPE_TOOL)
 #define PERF_TOOL_PMU_TYPE_HWMON_MASK (1 << PERF_TOOL_PMU_TYPE_HWMON)
+#define PERF_TOOL_PMU_TYPE_DRM_MASK (1 << PERF_TOOL_PMU_TYPE_DRM)
 
 #define PERF_TOOL_PMU_TYPE_ALL_MASK (PERF_TOOL_PMU_TYPE_PE_CORE_MASK |	\
 					PERF_TOOL_PMU_TYPE_PE_OTHER_MASK | \
 					PERF_TOOL_PMU_TYPE_TOOL_MASK |	\
-					PERF_TOOL_PMU_TYPE_HWMON_MASK)
+					PERF_TOOL_PMU_TYPE_HWMON_MASK | \
+					PERF_TOOL_PMU_TYPE_DRM_MASK)
 };
 static unsigned int read_pmu_types;
 
@@ -173,6 +177,8 @@ struct perf_pmu *perf_pmus__find(const char *name)
 	/* Looking up an individual perf event PMU failed, check if a tool PMU should be read. */
 	if (!strncmp(name, "hwmon_", 6))
 		to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK;
+	else if (!strncmp(name, "drm_", 4))
+		to_read_pmus |= PERF_TOOL_PMU_TYPE_DRM_MASK;
 	else if (!strcmp(name, "tool"))
 		to_read_pmus |= PERF_TOOL_PMU_TYPE_TOOL_MASK;
 
@@ -273,6 +279,10 @@ static void pmu_read_sysfs(unsigned int to_read_types)
 	    (read_pmu_types & PERF_TOOL_PMU_TYPE_HWMON_MASK) == 0)
 		perf_pmus__read_hwmon_pmus(&other_pmus);
 
+	if ((to_read_types & PERF_TOOL_PMU_TYPE_DRM_MASK) != 0 &&
+	    (read_pmu_types & PERF_TOOL_PMU_TYPE_DRM_MASK) == 0)
+		perf_pmus__read_drm_pmus(&other_pmus);
+
 	list_sort(NULL, &other_pmus, pmus_cmp);
 
 	read_pmu_types |= to_read_types;
@@ -305,6 +315,8 @@ struct perf_pmu *perf_pmus__find_by_type(unsigned int type)
 	if (type >= PERF_PMU_TYPE_PE_START && type <= PERF_PMU_TYPE_PE_END) {
 		to_read_pmus = PERF_TOOL_PMU_TYPE_PE_CORE_MASK |
 			PERF_TOOL_PMU_TYPE_PE_OTHER_MASK;
+	} else if (type >= PERF_PMU_TYPE_DRM_START && type <= PERF_PMU_TYPE_DRM_END) {
+		to_read_pmus = PERF_TOOL_PMU_TYPE_DRM_MASK;
 	} else if (type >= PERF_PMU_TYPE_HWMON_START && type <= PERF_PMU_TYPE_HWMON_END) {
 		to_read_pmus = PERF_TOOL_PMU_TYPE_HWMON_MASK;
 	} else {
@@ -371,6 +383,10 @@ struct perf_pmu *perf_pmus__scan_for_event(struct perf_pmu *pmu, const char *eve
 		if (parse_hwmon_filename(event, &type, &number, /*item=*/NULL, /*alarm=*/NULL))
 			to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK;
 
+		/* Could the event be a DRM event? */
+		if (strlen(event) > 4 && strncmp("drm-", event, 4) == 0)
+			to_read_pmus |= PERF_TOOL_PMU_TYPE_DRM_MASK;
+
 		pmu_read_sysfs(to_read_pmus);
 		pmu = list_prepare_entry(pmu, &core_pmus, list);
 	}
@@ -403,11 +419,17 @@ struct perf_pmu *perf_pmus__scan_matching_wildcard(struct perf_pmu *pmu, const c
 		 * Hwmon PMUs have an alias from a sysfs name like hwmon0,
 		 * hwmon1, etc. or have a name of hwmon_<name>. They therefore
 		 * can only have a wildcard match if the wildcard begins with
-		 * "hwmon".
+		 * "hwmon". Similarly drm PMUs must start "drm_", avoid reading
+		 * such events unless the PMU could match.
 		 */
-		if (strisglob(wildcard) ||
-		    (strlen(wildcard) >= 5 && strncmp("hwmon", wildcard, 5) == 0))
+		if (strisglob(wildcard)) {
+			to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK |
+				PERF_TOOL_PMU_TYPE_DRM_MASK;
+		} else if (strlen(wildcard) >= 4 && strncmp("drm_", wildcard, 4) == 0) {
+			to_read_pmus |= PERF_TOOL_PMU_TYPE_DRM_MASK;
+		} else if (strlen(wildcard) >= 5 && strncmp("hwmon", wildcard, 5) == 0) {
 			to_read_pmus |= PERF_TOOL_PMU_TYPE_HWMON_MASK;
+		}
 
 		pmu_read_sysfs(to_read_pmus);
 		pmu = list_prepare_entry(pmu, &core_pmus, list);

From 45cd84bd7afc42c4a2ca630c11f246974fd1e73c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 16:18:37 -0700
Subject: [PATCH 048/179] perf tests: Add a DRM PMU test

The test opens any DRM devices so that the shell has fdinfo files
containing the DRM data. The test then uses perf stat to make sure the
events can be read.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624231837.179536-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/drm_pmu.sh | 78 +++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100755 tools/perf/tests/shell/drm_pmu.sh

diff --git a/tools/perf/tests/shell/drm_pmu.sh b/tools/perf/tests/shell/drm_pmu.sh
new file mode 100755
index 000000000000..e629fe0e8463
--- /dev/null
+++ b/tools/perf/tests/shell/drm_pmu.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+# DRM PMU
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+output=$(mktemp /tmp/perf.drm_pmu.XXXXXX.txt)
+
+cleanup() {
+  rm -f "${output}"
+
+  trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+  echo "Unexpected signal in ${FUNCNAME[1]}"
+  cleanup
+  exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+# Array to store file descriptors and device names
+declare -A device_fds
+
+# Open all devices and store file descriptors. Opening the device will create a
+# /proc/$$/fdinfo file containing the DRM statistics.
+fd_count=3 # Start with file descriptor 3
+for device in /dev/dri/*
+do
+  if [[ ! -c "$device" ]]
+  then
+    continue
+  fi
+  major=$(stat -c "%Hr" "$device")
+  if [[ "$major" != 226 ]]
+  then
+    continue
+  fi
+  echo "Opening $device"
+  eval "exec $fd_count<\"$device\""
+  echo "fdinfo for: $device (FD: $fd_count)"
+  cat "/proc/$$/fdinfo/$fd_count"
+  echo
+  device_fds["$device"]="$fd_count"
+  fd_count=$((fd_count + 1))
+done
+
+if [[ ${#device_fds[@]} -eq 0 ]]
+then
+  echo "No DRM devices found [Skip]"
+  cleanup
+  exit 2
+fi
+
+# For each DRM event
+err=0
+for p in $(perf list --raw-dump drm-)
+do
+  echo -n "Testing perf stat of $p. "
+  perf stat -e "$p" --pid=$$ true > "$output" 2>&1
+  if ! grep -q "$p" "$output"
+  then
+    echo "Missing DRM event in: [Failed]"
+    cat "$output"
+    err=1
+  else
+    echo "[OK]"
+  fi
+done
+
+# Close all file descriptors
+for fd in "${device_fds[@]}"; do
+  eval "exec $fd<&-"
+done
+
+# Finished
+cleanup
+exit $err

From 61051f9a8452d7f0878eaeb30299363310f07fd7 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 6 Jun 2025 23:12:35 -0700
Subject: [PATCH 049/179] perf header: In pipe mode dump features without
 --header/-I

In pipe mode the header features are contained within events. While
other events dump details the header features only dump if --header or
-I are passed, which doesn't make sense as in pipe mode there is no
perf file header. Make the printing of the information conditional on
dump_trace as with other events.

Before:
```
$ perf record -o - -a sleep 1 | perf script -D -i -
...
0x2c8@pipe [0x54]: event: 80
.
. ... raw event: size 84 bytes
.  0000:  50 00 00 00 00 00 54 00 05 00 00 00 00 00 00 00  P.....T.........
.  0010:  40 00 00 00 36 2e 31 35 2e 72 63 37 2e 67 61 64  @...6.15.rc7.gad
.  0020:  32 61 36 39 31 63 39 39 66 62 00 00 00 00 00 00  2a691c99fb......
.  0030:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0040:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0050:  00 00 00 00                                      ....

0 0 0x2c8 [0x54]: PERF_RECORD_FEATURE
```

After:
```
$ perf record -o - -a sleep 1 | perf script -D -i -
...
0x2c8@pipe [0x54]: event: 80
.
. ... raw event: size 84 bytes
.  0000:  50 00 00 00 00 00 54 00 05 00 00 00 00 00 00 00  P.....T.........
.  0010:  40 00 00 00 36 2e 31 35 2e 72 63 37 2e 67 61 64  @...6.15.rc7.gad
.  0020:  32 61 36 39 31 63 39 39 66 62 00 00 00 00 00 00  2a691c99fb......
.  0030:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0040:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0050:  00 00 00 00                                      ....

0 0 0x2c8 [0x54]: PERF_RECORD_FEATURE, # perf version : 6.15.rc7.gad2a691c99fb
```

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 2dea35237e81..58f45a2a2ab6 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -4326,7 +4326,6 @@ int perf_session__read_header(struct perf_session *session)
 int perf_event__process_feature(struct perf_session *session,
 				union perf_event *event)
 {
-	const struct perf_tool *tool = session->tool;
 	struct feat_fd ff = { .fd = 0 };
 	struct perf_record_header_feature *fe = (struct perf_record_header_feature *)event;
 	int type = fe->header.type;
@@ -4342,28 +4341,23 @@ int perf_event__process_feature(struct perf_session *session,
 		return -1;
 	}
 
-	if (!feat_ops[feat].process)
-		return 0;
-
 	ff.buf  = (void *)fe->data;
 	ff.size = event->header.size - sizeof(*fe);
 	ff.ph = &session->header;
 
-	if (feat_ops[feat].process(&ff, NULL)) {
+	if (feat_ops[feat].process && feat_ops[feat].process(&ff, NULL)) {
 		ret = -1;
 		goto out;
 	}
 
-	if (!feat_ops[feat].print || !tool->show_feat_hdr)
-		goto out;
-
-	if (!feat_ops[feat].full_only ||
-	    tool->show_feat_hdr >= SHOW_FEAT_HEADER_FULL_INFO) {
-		feat_ops[feat].print(&ff, stdout);
-	} else {
-		fprintf(stdout, "# %s info available, use -I to display\n",
-			feat_ops[feat].name);
+	if (dump_trace) {
+		printf(", ");
+		if (feat_ops[feat].print)
+			feat_ops[feat].print(&ff, stdout);
+		else
+			printf("# %s", feat_ops[feat].name);
 	}
+
 out:
 	free_event_desc(ff.events);
 	return ret;

From 57cbd56e2efe26483be2d4e7f62a7d9d816b54f1 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 6 Jun 2025 23:12:36 -0700
Subject: [PATCH 050/179] perf header: Allow tracing of attr events

In pipe mode attr events capture the perf_event_attr. Allow their
dumping as they normally start the file.

Before:
```
$ perf record -o - -a sleep 1 | perf script -D -i -
. ... raw event: size 272 bytes
.  0000:  40 00 00 00 00 00 10 01 00 00 00 00 88 00 00 00  @...............
.  0010:  00 00 00 00 00 00 00 00 a0 0f 00 00 00 00 00 00  ................
.  0020:  87 01 01 00 00 00 00 00 14 00 00 00 00 00 00 00  ................
.  0030:  01 84 05 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0040:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0050:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0060:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0070:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0080:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0090:  91 08 00 00 00 00 00 00 92 08 00 00 00 00 00 00  ................
.  00a0:  93 08 00 00 00 00 00 00 94 08 00 00 00 00 00 00  ................
.  00b0:  95 08 00 00 00 00 00 00 96 08 00 00 00 00 00 00  ................
.  00c0:  97 08 00 00 00 00 00 00 98 08 00 00 00 00 00 00  ................
.  00d0:  99 08 00 00 00 00 00 00 9a 08 00 00 00 00 00 00  ................
.  00e0:  9b 08 00 00 00 00 00 00 9c 08 00 00 00 00 00 00  ................
.  00f0:  9d 08 00 00 00 00 00 00 9e 08 00 00 00 00 00 00  ................
.  0100:  9f 08 00 00 00 00 00 00 a0 08 00 00 00 00 00 00  ................

-1 -1 0 [0x110]: PERF_RECORD_ATTR
0x110@pipe [0x110]: event: 64
...
```

After:
```
$ perf record -o - -a sleep 1 | perf script -D -i -
0@pipe [0x110]: event: 64
.
. ... raw event: size 272 bytes
.  0000:  40 00 00 00 00 00 10 01 00 00 00 00 88 00 00 00  @...............
.  0010:  00 00 00 00 00 00 00 00 a0 0f 00 00 00 00 00 00  ................
.  0020:  87 01 01 00 00 00 00 00 14 00 00 00 00 00 00 00  ................
.  0030:  01 84 05 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0040:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0050:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0060:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0070:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0080:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
.  0090:  5c 08 00 00 00 00 00 00 5d 08 00 00 00 00 00 00  \.......].......
.  00a0:  5e 08 00 00 00 00 00 00 5f 08 00 00 00 00 00 00  ^......._.......
.  00b0:  60 08 00 00 00 00 00 00 61 08 00 00 00 00 00 00  `.......a.......
.  00c0:  62 08 00 00 00 00 00 00 63 08 00 00 00 00 00 00  b.......c.......
.  00d0:  64 08 00 00 00 00 00 00 65 08 00 00 00 00 00 00  d.......e.......
.  00e0:  66 08 00 00 00 00 00 00 67 08 00 00 00 00 00 00  f.......g.......
.  00f0:  68 08 00 00 00 00 00 00 69 08 00 00 00 00 00 00  h.......i.......
.  0100:  6a 08 00 00 00 00 00 00 6b 08 00 00 00 00 00 00  j.......k.......

-1 -1 0 [0x110]: PERF_RECORD_ATTR, type = 0 (PERF_TYPE_HARDWARE), size = 136, config = 0 (PERF_COUNT_HW_CPU_CYCLES), { sample_period, sample_freq } = 4000, sample_type = IP|TID|TIME|CPU|PERIOD|IDENTIFIER, read_format = ID|LOST, disabled = 1, freq = 1, precise_ip = 3, sample_id_all = 1
0x110@pipe [0x110]: event: 64
...
```

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 8 ++++++++
 tools/perf/util/header.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 58f45a2a2ab6..3f1b78810059 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -4399,6 +4399,11 @@ size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp)
 	return ret;
 }
 
+size_t perf_event__fprintf_attr(union perf_event *event, FILE *fp)
+{
+	return perf_event_attr__fprintf(fp, &event->attr.attr, __desc_attr__fprintf, NULL);
+}
+
 int perf_event__process_attr(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct evlist **pevlist)
@@ -4408,6 +4413,9 @@ int perf_event__process_attr(const struct perf_tool *tool __maybe_unused,
 	struct evsel *evsel;
 	struct evlist *evlist = *pevlist;
 
+	if (dump_trace)
+		perf_event__fprintf_attr(event, stdout);
+
 	if (evlist == NULL) {
 		*pevlist = evlist = evlist__new();
 		if (evlist == NULL)
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 5201af6305f4..d16dfceccd74 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -175,6 +175,7 @@ int perf_event__process_attr(const struct perf_tool *tool, union perf_event *eve
 int perf_event__process_event_update(const struct perf_tool *tool,
 				     union perf_event *event,
 				     struct evlist **pevlist);
+size_t perf_event__fprintf_attr(union perf_event *event, FILE *fp);
 size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
 #ifdef HAVE_LIBTRACEEVENT
 int perf_event__process_tracing_data(struct perf_session *session,

From 4d2eefd7fb91482f1327f28f14112201e0b45dff Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 6 Jun 2025 23:12:37 -0700
Subject: [PATCH 051/179] perf header: Display message if BPF/BTF info is empty

The perf.data file may contain a bpf_prog_info or bpf_btf feature. If
the contents of these are empty then nothing is displayed. Rather than
display nothing and not account for the file space, display an empty
message.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 3f1b78810059..a9538bb1004d 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1814,6 +1814,9 @@ static void print_bpf_prog_info(struct feat_fd *ff, FILE *fp)
 	root = &env->bpf_progs.infos;
 	next = rb_first(root);
 
+	if (!next)
+		printf("# bpf_prog_info empty\n");
+
 	while (next) {
 		struct bpf_prog_info_node *node;
 
@@ -1838,6 +1841,9 @@ static void print_bpf_btf(struct feat_fd *ff, FILE *fp)
 	root = &env->bpf_progs.btfs;
 	next = rb_first(root);
 
+	if (!next)
+		printf("# btf info empty\n");
+
 	while (next) {
 		struct btf_node *node;
 

From f0d0f978f3f5830ab06d71d1f37b3b30d47d6219 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 6 Jun 2025 23:12:38 -0700
Subject: [PATCH 052/179] perf header: Don't write empty BPF/BTF info

If there are no values in bpf_prog_info or bpf_btf feature don't write
the data into the header.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a9538bb1004d..487f663ed2de 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1016,10 +1016,13 @@ static int write_bpf_prog_info(struct feat_fd *ff,
 	struct perf_env *env = &ff->ph->env;
 	struct rb_root *root;
 	struct rb_node *next;
-	int ret;
+	int ret = 0;
 
 	down_read(&env->bpf_progs.lock);
 
+	if (env->bpf_progs.infos_cnt == 0)
+		goto out;
+
 	ret = do_write(ff, &env->bpf_progs.infos_cnt,
 		       sizeof(env->bpf_progs.infos_cnt));
 	if (ret < 0)
@@ -1058,10 +1061,13 @@ static int write_bpf_btf(struct feat_fd *ff,
 	struct perf_env *env = &ff->ph->env;
 	struct rb_root *root;
 	struct rb_node *next;
-	int ret;
+	int ret = 0;
 
 	down_read(&env->bpf_progs.lock);
 
+	if (env->bpf_progs.btfs_cnt == 0)
+		goto out;
+
 	ret = do_write(ff, &env->bpf_progs.btfs_cnt,
 		       sizeof(env->bpf_progs.btfs_cnt));
 

From 2f5d370dec3f800b44bbf7b68875d521e0af43cd Mon Sep 17 00:00:00 2001
From: James Clark <james.clark@linaro.org>
Date: Mon, 23 Jun 2025 10:00:12 +0100
Subject: [PATCH 053/179] perf test: Change all remaining #!/bin/sh to
 #!/bin/bash

There are 43 instances of posix shell tests and 35 instances of bash. To
give us a single consistent language for testing in, replace
all #!/bin/sh to #!/bin/bash. Common sources that are included in both
different shells will now work as expected. And we no longer have to fix
up bashisms that appear to work when someone's system has sh symlinked
to bash, but don't work on other systems that have both shells
installed.

Although we could have chosen sh, it's not backwards compatible so it
wouldn't be possible to bulk convert without re-writing the existing
bash tests.

Choosing bash also gives us some nicer features including 'local'
variable definitions and regexes in if statements that are already
widely used in the tests.

It's not expected that there are any users with only sh available due to
the large number of bash tests that exist.

Discussed in relation to running shellcheck here:
https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/

Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/perf-targz-src-pkg                          | 2 +-
 tools/perf/tests/shell/amd-ibs-swfilt.sh                     | 2 +-
 tools/perf/tests/shell/buildid.sh                            | 2 +-
 tools/perf/tests/shell/coresight/asm_pure_loop.sh            | 2 +-
 tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh     | 2 +-
 tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh | 2 +-
 tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh  | 2 +-
 tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh    | 2 +-
 tools/perf/tests/shell/diff.sh                               | 2 +-
 tools/perf/tests/shell/ftrace.sh                             | 2 +-
 tools/perf/tests/shell/lib/perf_has_symbol.sh                | 2 +-
 tools/perf/tests/shell/lib/probe_vfs_getname.sh              | 2 +-
 tools/perf/tests/shell/lib/setup_python.sh                   | 2 +-
 tools/perf/tests/shell/lib/waiting.sh                        | 2 +-
 tools/perf/tests/shell/list.sh                               | 2 +-
 tools/perf/tests/shell/lock_contention.sh                    | 2 +-
 tools/perf/tests/shell/perf-report-hierarchy.sh              | 2 +-
 tools/perf/tests/shell/probe_vfs_getname.sh                  | 2 +-
 tools/perf/tests/shell/record+probe_libc_inet_pton.sh        | 2 +-
 tools/perf/tests/shell/record+script_probe_vfs_getname.sh    | 2 +-
 tools/perf/tests/shell/record+zstd_comp_decomp.sh            | 2 +-
 tools/perf/tests/shell/record_bpf_filter.sh                  | 2 +-
 tools/perf/tests/shell/record_offcpu.sh                      | 2 +-
 tools/perf/tests/shell/record_sideband.sh                    | 2 +-
 tools/perf/tests/shell/script.sh                             | 2 +-
 tools/perf/tests/shell/stat+csv_summary.sh                   | 2 +-
 tools/perf/tests/shell/stat+shadow_stat.sh                   | 2 +-
 tools/perf/tests/shell/stat_all_pfm.sh                       | 2 +-
 tools/perf/tests/shell/stat_bpf_counters.sh                  | 2 +-
 tools/perf/tests/shell/stat_bpf_counters_cgrp.sh             | 2 +-
 tools/perf/tests/shell/test_arm_callgraph_fp.sh              | 2 +-
 tools/perf/tests/shell/test_arm_coresight.sh                 | 2 +-
 tools/perf/tests/shell/test_arm_coresight_disasm.sh          | 2 +-
 tools/perf/tests/shell/test_arm_spe.sh                       | 2 +-
 tools/perf/tests/shell/test_arm_spe_fork.sh                  | 2 +-
 tools/perf/tests/shell/test_bpf_metadata.sh                  | 2 +-
 tools/perf/tests/shell/test_intel_pt.sh                      | 2 +-
 tools/perf/tests/shell/trace+probe_vfs_getname.sh            | 2 +-
 tools/perf/tests/shell/trace_btf_enum.sh                     | 2 +-
 tools/perf/tests/shell/trace_exit_race.sh                    | 2 +-
 tools/perf/tests/shell/trace_record_replay.sh                | 2 +-
 tools/perf/tests/shell/trace_summary.sh                      | 2 +-
 tools/perf/tests/tests-scripts.c                             | 2 +-
 43 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/tools/perf/tests/perf-targz-src-pkg b/tools/perf/tests/perf-targz-src-pkg
index b3075c168cb2..52a90e6bd8af 100755
--- a/tools/perf/tests/perf-targz-src-pkg
+++ b/tools/perf/tests/perf-targz-src-pkg
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 # Test one of the main kernel Makefile targets to generate a perf sources tarball
 # suitable for build outside the full kernel sources.
diff --git a/tools/perf/tests/shell/amd-ibs-swfilt.sh b/tools/perf/tests/shell/amd-ibs-swfilt.sh
index 83937aa687cc..7045ec72ba4c 100755
--- a/tools/perf/tests/shell/amd-ibs-swfilt.sh
+++ b/tools/perf/tests/shell/amd-ibs-swfilt.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # AMD IBS software filtering
 
 echo "check availability of IBS swfilt"
diff --git a/tools/perf/tests/shell/buildid.sh b/tools/perf/tests/shell/buildid.sh
index 3383ca3399d4..d2eb213da01d 100755
--- a/tools/perf/tests/shell/buildid.sh
+++ b/tools/perf/tests/shell/buildid.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # build id cache operations
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/coresight/asm_pure_loop.sh b/tools/perf/tests/shell/coresight/asm_pure_loop.sh
index c63bc8c73e26..0301904b9637 100755
--- a/tools/perf/tests/shell/coresight/asm_pure_loop.sh
+++ b/tools/perf/tests/shell/coresight/asm_pure_loop.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 # CoreSight / ASM Pure Loop (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh b/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
index 8e29630957c8..1f765d69acc3 100755
--- a/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
+++ b/tools/perf/tests/shell/coresight/memcpy_thread_16k_10.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 # CoreSight / Memcpy 16k 10 Threads (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh b/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
index 0c4c82a1c8e1..7f43a93a2ac2 100755
--- a/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
+++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_10.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 # CoreSight / Thread Loop 10 Threads - Check TID (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh b/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
index d3aea9fc6ced..a94d2079ed06 100755
--- a/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
+++ b/tools/perf/tests/shell/coresight/thread_loop_check_tid_2.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 # CoreSight / Thread Loop 2 Threads - Check TID (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh b/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
index 7429d3a2ae43..cb3e97a0a89f 100755
--- a/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
+++ b/tools/perf/tests/shell/coresight/unroll_loop_thread_10.sh
@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 # CoreSight / Unroll Loop Thread 10 (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/diff.sh b/tools/perf/tests/shell/diff.sh
index e05a5dc49479..fe05fdebcab5 100755
--- a/tools/perf/tests/shell/diff.sh
+++ b/tools/perf/tests/shell/diff.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf diff tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/ftrace.sh b/tools/perf/tests/shell/ftrace.sh
index c243731d2fbf..7f8aafcbb761 100755
--- a/tools/perf/tests/shell/ftrace.sh
+++ b/tools/perf/tests/shell/ftrace.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf ftrace tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/lib/perf_has_symbol.sh b/tools/perf/tests/shell/lib/perf_has_symbol.sh
index 561c93b75d77..0b35cce0b13d 100644
--- a/tools/perf/tests/shell/lib/perf_has_symbol.sh
+++ b/tools/perf/tests/shell/lib/perf_has_symbol.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
 perf_has_symbol()
diff --git a/tools/perf/tests/shell/lib/probe_vfs_getname.sh b/tools/perf/tests/shell/lib/probe_vfs_getname.sh
index 58debce9ab42..88cd0e26d5f6 100644
--- a/tools/perf/tests/shell/lib/probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/lib/probe_vfs_getname.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 perf probe -l 2>&1 | grep -q probe:vfs_getname
diff --git a/tools/perf/tests/shell/lib/setup_python.sh b/tools/perf/tests/shell/lib/setup_python.sh
index c2fce1793538..a58e5536f2ed 100644
--- a/tools/perf/tests/shell/lib/setup_python.sh
+++ b/tools/perf/tests/shell/lib/setup_python.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
 if [ "x$PYTHON" = "x" ]
diff --git a/tools/perf/tests/shell/lib/waiting.sh b/tools/perf/tests/shell/lib/waiting.sh
index bdd5a7c71591..3a152892e077 100644
--- a/tools/perf/tests/shell/lib/waiting.sh
+++ b/tools/perf/tests/shell/lib/waiting.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
 tenths=date\ +%s%1N
diff --git a/tools/perf/tests/shell/list.sh b/tools/perf/tests/shell/list.sh
index 76a9846cff22..0c04b3159cef 100755
--- a/tools/perf/tests/shell/list.sh
+++ b/tools/perf/tests/shell/list.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf list tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/lock_contention.sh b/tools/perf/tests/shell/lock_contention.sh
index 30d195d4c62f..dde5bc737eb2 100755
--- a/tools/perf/tests/shell/lock_contention.sh
+++ b/tools/perf/tests/shell/lock_contention.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # kernel lock contention analysis test
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/perf-report-hierarchy.sh b/tools/perf/tests/shell/perf-report-hierarchy.sh
index 02e3b6aee4ed..e3c6f9a24f33 100755
--- a/tools/perf/tests/shell/perf-report-hierarchy.sh
+++ b/tools/perf/tests/shell/perf-report-hierarchy.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf report --hierarchy
 # SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@redhat.com> 
diff --git a/tools/perf/tests/shell/probe_vfs_getname.sh b/tools/perf/tests/shell/probe_vfs_getname.sh
index 0f52654c914a..5fe5682c28ce 100755
--- a/tools/perf/tests/shell/probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/probe_vfs_getname.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Add vfs_getname probe to get syscall args filenames (exclusive)
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
index 9bdf47aabe9d..ab99bef556bf 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # probe libc's inet_pton & backtrace it with ping (exclusive)
 
 # Installs a probe on libc's inet_pton function, that will use uprobes,
diff --git a/tools/perf/tests/shell/record+script_probe_vfs_getname.sh b/tools/perf/tests/shell/record+script_probe_vfs_getname.sh
index 1ad252f0d36e..002f7037f182 100755
--- a/tools/perf/tests/shell/record+script_probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/record+script_probe_vfs_getname.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Use vfs_getname probe to get syscall args filenames (exclusive)
 
 # Uses the 'perf test shell' library to add probe:vfs_getname to the system
diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
index 8929046e9057..f6b82223834e 100755
--- a/tools/perf/tests/shell/record+zstd_comp_decomp.sh
+++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Zstd perf.data compression/decompression
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/record_bpf_filter.sh b/tools/perf/tests/shell/record_bpf_filter.sh
index 4d6c3c1b7fb9..383574cb3bd3 100755
--- a/tools/perf/tests/shell/record_bpf_filter.sh
+++ b/tools/perf/tests/shell/record_bpf_filter.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf record sample filtering (by BPF) tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/record_offcpu.sh b/tools/perf/tests/shell/record_offcpu.sh
index 21a22efe08f5..860a2d6f4b75 100755
--- a/tools/perf/tests/shell/record_offcpu.sh
+++ b/tools/perf/tests/shell/record_offcpu.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf record offcpu profiling tests (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/record_sideband.sh b/tools/perf/tests/shell/record_sideband.sh
index ac70ac27d590..2182551873be 100755
--- a/tools/perf/tests/shell/record_sideband.sh
+++ b/tools/perf/tests/shell/record_sideband.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf record sideband tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/script.sh b/tools/perf/tests/shell/script.sh
index d3e2958d2242..7007f1cdf761 100755
--- a/tools/perf/tests/shell/script.sh
+++ b/tools/perf/tests/shell/script.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf script tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/stat+csv_summary.sh b/tools/perf/tests/shell/stat+csv_summary.sh
index 323123ff4d19..9a4353db3825 100755
--- a/tools/perf/tests/shell/stat+csv_summary.sh
+++ b/tools/perf/tests/shell/stat+csv_summary.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf stat csv summary test
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/stat+shadow_stat.sh b/tools/perf/tests/shell/stat+shadow_stat.sh
index 0c7d79a230ea..8824f445d343 100755
--- a/tools/perf/tests/shell/stat+shadow_stat.sh
+++ b/tools/perf/tests/shell/stat+shadow_stat.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf stat metrics (shadow stat) test
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/stat_all_pfm.sh b/tools/perf/tests/shell/stat_all_pfm.sh
index 4d004f777a6e..c08c186af2c4 100755
--- a/tools/perf/tests/shell/stat_all_pfm.sh
+++ b/tools/perf/tests/shell/stat_all_pfm.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf all libpfm4 events test
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/stat_bpf_counters.sh b/tools/perf/tests/shell/stat_bpf_counters.sh
index 95d2ad5d17c6..f43e28a136d3 100755
--- a/tools/perf/tests/shell/stat_bpf_counters.sh
+++ b/tools/perf/tests/shell/stat_bpf_counters.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf stat --bpf-counters test (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh b/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
index 2ec69060c42f..ff2e06c408bc 100755
--- a/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
+++ b/tools/perf/tests/shell/stat_bpf_counters_cgrp.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf stat --bpf-counters --for-each-cgroup test
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/test_arm_callgraph_fp.sh b/tools/perf/tests/shell/test_arm_callgraph_fp.sh
index 9caa36130175..9172dd68a81d 100755
--- a/tools/perf/tests/shell/test_arm_callgraph_fp.sh
+++ b/tools/perf/tests/shell/test_arm_callgraph_fp.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check Arm64 callgraphs are complete in fp mode
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/test_arm_coresight.sh b/tools/perf/tests/shell/test_arm_coresight.sh
index 573af9235b72..1c750b67d141 100755
--- a/tools/perf/tests/shell/test_arm_coresight.sh
+++ b/tools/perf/tests/shell/test_arm_coresight.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check Arm CoreSight trace data recording and synthesized samples (exclusive)
 
 # Uses the 'perf record' to record trace data with Arm CoreSight sinks;
diff --git a/tools/perf/tests/shell/test_arm_coresight_disasm.sh b/tools/perf/tests/shell/test_arm_coresight_disasm.sh
index be2d26303f94..0dfb4fadf531 100755
--- a/tools/perf/tests/shell/test_arm_coresight_disasm.sh
+++ b/tools/perf/tests/shell/test_arm_coresight_disasm.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check Arm CoreSight disassembly script completes without errors (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/test_arm_spe.sh b/tools/perf/tests/shell/test_arm_spe.sh
index a69aab70dd8a..bb76ea88aa14 100755
--- a/tools/perf/tests/shell/test_arm_spe.sh
+++ b/tools/perf/tests/shell/test_arm_spe.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check Arm SPE trace data recording and synthesized samples (exclusive)
 
 # Uses the 'perf record' to record trace data of Arm SPE events;
diff --git a/tools/perf/tests/shell/test_arm_spe_fork.sh b/tools/perf/tests/shell/test_arm_spe_fork.sh
index 8efeef9fb956..5bcca51c03ac 100755
--- a/tools/perf/tests/shell/test_arm_spe_fork.sh
+++ b/tools/perf/tests/shell/test_arm_spe_fork.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check Arm SPE doesn't hang when there are forks
 
 # SPDX-License-Identifier: GPL-2.0
diff --git a/tools/perf/tests/shell/test_bpf_metadata.sh b/tools/perf/tests/shell/test_bpf_metadata.sh
index 11df592fb661..bc9aef161664 100755
--- a/tools/perf/tests/shell/test_bpf_metadata.sh
+++ b/tools/perf/tests/shell/test_bpf_metadata.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 #
 # BPF metadata collection test.
diff --git a/tools/perf/tests/shell/test_intel_pt.sh b/tools/perf/tests/shell/test_intel_pt.sh
index 32a9b8dcb200..8ee761f03c38 100755
--- a/tools/perf/tests/shell/test_intel_pt.sh
+++ b/tools/perf/tests/shell/test_intel_pt.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Miscellaneous Intel PT testing (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/trace+probe_vfs_getname.sh b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
index 5d5019988d61..7a0b1145d0cd 100755
--- a/tools/perf/tests/shell/trace+probe_vfs_getname.sh
+++ b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # Check open filename arg using perf trace + vfs_getname (exclusive)
 
 # Uses the 'perf test shell' library to add probe:vfs_getname to the system
diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index c37017bfeb5e..572001d75d78 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf trace enum augmentation tests
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/trace_exit_race.sh b/tools/perf/tests/shell/trace_exit_race.sh
index 1e247693e756..db300cde94fb 100755
--- a/tools/perf/tests/shell/trace_exit_race.sh
+++ b/tools/perf/tests/shell/trace_exit_race.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf trace exit race
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/trace_record_replay.sh b/tools/perf/tests/shell/trace_record_replay.sh
index 6b4ed863c1ef..88d30a03dcec 100755
--- a/tools/perf/tests/shell/trace_record_replay.sh
+++ b/tools/perf/tests/shell/trace_record_replay.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf trace record and replay
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/shell/trace_summary.sh b/tools/perf/tests/shell/trace_summary.sh
index f9bb7f9388be..22e2651d5919 100755
--- a/tools/perf/tests/shell/trace_summary.sh
+++ b/tools/perf/tests/shell/trace_summary.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # perf trace summary (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
diff --git a/tools/perf/tests/tests-scripts.c b/tools/perf/tests/tests-scripts.c
index 3a2a8438f9af..f18c4cd337c8 100644
--- a/tools/perf/tests/tests-scripts.c
+++ b/tools/perf/tests/tests-scripts.c
@@ -85,7 +85,7 @@ static char *shell_test__description(int dir_fd, const char *name)
 	if (io.fd < 0)
 		return NULL;
 
-	/* Skip first line - should be #!/bin/sh Shebang */
+	/* Skip first line - should be #!/bin/bash Shebang */
 	if (io__get_char(&io) != '#')
 		goto err_out;
 	if (io__get_char(&io) != '!')

From f6109fb6f5d7fb9403cecfc75302bbf47ed83b8d Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Mon, 23 Jun 2025 15:57:21 -0700
Subject: [PATCH 054/179] perf trace: Split BPF skel code to
 util/bpf_trace_augment.c

And make builtin-trace.c less conditional.  Dummy functions will be
called when BUILD_BPF_SKEL=0 is used.  This makes the builtin-trace.c
slightly smaller and simpler by removing the skeleton and its helpers.

The conditional guard of trace__init_syscalls_bpf_prog_array_maps() is
changed from the HAVE_BPF_SKEL to HAVE_LIBBPF_SUPPORT as it doesn't
have a skeleton in the code directly.  And a dummy function is added so
that it can be called unconditionally.  The function will succeed only
if the both conditions are true.

Do not include trace_augment.h from the BPF code and move the definition
of TRACE_AUG_MAX_BUF to the BPF directly.

Reviewed-by: Howard Chu <howardchu95@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250623225721.21553-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-trace.c                    | 187 +++++-------------
 tools/perf/util/Build                         |   1 +
 .../bpf_skel/augmented_raw_syscalls.bpf.c     |   3 +-
 tools/perf/util/bpf_trace_augment.c           | 143 ++++++++++++++
 tools/perf/util/trace_augment.h               |  62 +++++-
 5 files changed, 255 insertions(+), 141 deletions(-)
 create mode 100644 tools/perf/util/bpf_trace_augment.c

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c38225a89fc8..bb2dbc1d2ffa 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -20,9 +20,6 @@
 #include <bpf/bpf.h>
 #include <bpf/libbpf.h>
 #include <bpf/btf.h>
-#ifdef HAVE_BPF_SKEL
-#include "bpf_skel/augmented_raw_syscalls.skel.h"
-#endif
 #endif
 #include "util/bpf_map.h"
 #include "util/rlimit.h"
@@ -155,9 +152,6 @@ struct trace {
 				*bpf_output;
 		}		events;
 	} syscalls;
-#ifdef HAVE_BPF_SKEL
-	struct augmented_raw_syscalls_bpf *skel;
-#endif
 #ifdef HAVE_LIBBPF_SUPPORT
 	struct btf		*btf;
 #endif
@@ -3703,7 +3697,10 @@ static int trace__set_ev_qualifier_tp_filter(struct trace *trace)
 	goto out;
 }
 
-#ifdef HAVE_BPF_SKEL
+#ifdef HAVE_LIBBPF_SUPPORT
+
+static struct bpf_program *unaugmented_prog;
+
 static int syscall_arg_fmt__cache_btf_struct(struct syscall_arg_fmt *arg_fmt, struct btf *btf, char *type)
 {
        int id;
@@ -3721,26 +3718,8 @@ static int syscall_arg_fmt__cache_btf_struct(struct syscall_arg_fmt *arg_fmt, st
        return 0;
 }
 
-static struct bpf_program *trace__find_bpf_program_by_title(struct trace *trace, const char *name)
-{
-	struct bpf_program *pos, *prog = NULL;
-	const char *sec_name;
-
-	if (trace->skel->obj == NULL)
-		return NULL;
-
-	bpf_object__for_each_program(pos, trace->skel->obj) {
-		sec_name = bpf_program__section_name(pos);
-		if (sec_name && !strcmp(sec_name, name)) {
-			prog = pos;
-			break;
-		}
-	}
-
-	return prog;
-}
-
-static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, struct syscall *sc,
+static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace __maybe_unused,
+							struct syscall *sc,
 							const char *prog_name, const char *type)
 {
 	struct bpf_program *prog;
@@ -3748,19 +3727,19 @@ static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, str
 	if (prog_name == NULL) {
 		char default_prog_name[256];
 		scnprintf(default_prog_name, sizeof(default_prog_name), "tp/syscalls/sys_%s_%s", type, sc->name);
-		prog = trace__find_bpf_program_by_title(trace, default_prog_name);
+		prog = augmented_syscalls__find_by_title(default_prog_name);
 		if (prog != NULL)
 			goto out_found;
 		if (sc->fmt && sc->fmt->alias) {
 			scnprintf(default_prog_name, sizeof(default_prog_name), "tp/syscalls/sys_%s_%s", type, sc->fmt->alias);
-			prog = trace__find_bpf_program_by_title(trace, default_prog_name);
+			prog = augmented_syscalls__find_by_title(default_prog_name);
 			if (prog != NULL)
 				goto out_found;
 		}
 		goto out_unaugmented;
 	}
 
-	prog = trace__find_bpf_program_by_title(trace, prog_name);
+	prog = augmented_syscalls__find_by_title(prog_name);
 
 	if (prog != NULL) {
 out_found:
@@ -3770,7 +3749,7 @@ static struct bpf_program *trace__find_syscall_bpf_prog(struct trace *trace, str
 	pr_debug("Couldn't find BPF prog \"%s\" to associate with syscalls:sys_%s_%s, not augmenting it\n",
 		 prog_name, type, sc->name);
 out_unaugmented:
-	return trace->skel->progs.syscall_unaugmented;
+	return unaugmented_prog;
 }
 
 static void trace__init_syscall_bpf_progs(struct trace *trace, int e_machine, int id)
@@ -3787,13 +3766,13 @@ static void trace__init_syscall_bpf_progs(struct trace *trace, int e_machine, in
 static int trace__bpf_prog_sys_enter_fd(struct trace *trace, int e_machine, int id)
 {
 	struct syscall *sc = trace__syscall_info(trace, NULL, e_machine, id);
-	return sc ? bpf_program__fd(sc->bpf_prog.sys_enter) : bpf_program__fd(trace->skel->progs.syscall_unaugmented);
+	return sc ? bpf_program__fd(sc->bpf_prog.sys_enter) : bpf_program__fd(unaugmented_prog);
 }
 
 static int trace__bpf_prog_sys_exit_fd(struct trace *trace, int e_machine, int id)
 {
 	struct syscall *sc = trace__syscall_info(trace, NULL, e_machine, id);
-	return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(trace->skel->progs.syscall_unaugmented);
+	return sc ? bpf_program__fd(sc->bpf_prog.sys_exit) : bpf_program__fd(unaugmented_prog);
 }
 
 static int trace__bpf_sys_enter_beauty_map(struct trace *trace, int e_machine, int key, unsigned int *beauty_array)
@@ -3903,7 +3882,7 @@ static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace
 		bool is_candidate = false;
 
 		if (pair == NULL || pair->id == sc->id ||
-		    pair->bpf_prog.sys_enter == trace->skel->progs.syscall_unaugmented)
+		    pair->bpf_prog.sys_enter == unaugmented_prog)
 			continue;
 
 		for (field = sc->args, candidate_field = pair->args;
@@ -3969,7 +3948,7 @@ static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace
 		 */
 		if (pair_prog == NULL) {
 			pair_prog = trace__find_syscall_bpf_prog(trace, pair, pair->fmt ? pair->fmt->bpf_prog_name.sys_enter : NULL, "enter");
-			if (pair_prog == trace->skel->progs.syscall_unaugmented)
+			if (pair_prog == unaugmented_prog)
 				goto next_candidate;
 		}
 
@@ -3985,12 +3964,17 @@ static struct bpf_program *trace__find_usable_bpf_prog_entry(struct trace *trace
 
 static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace, int e_machine)
 {
-	int map_enter_fd = bpf_map__fd(trace->skel->maps.syscalls_sys_enter);
-	int map_exit_fd  = bpf_map__fd(trace->skel->maps.syscalls_sys_exit);
-	int beauty_map_fd = bpf_map__fd(trace->skel->maps.beauty_map_enter);
+	int map_enter_fd;
+	int map_exit_fd;
+	int beauty_map_fd;
 	int err = 0;
 	unsigned int beauty_array[6];
 
+	if (augmented_syscalls__get_map_fds(&map_enter_fd, &map_exit_fd, &beauty_map_fd) < 0)
+		return -1;
+
+	unaugmented_prog = augmented_syscalls__unaugmented();
+
 	for (int i = 0, num_idx = syscalltbl__num_idx(e_machine); i < num_idx; ++i) {
 		int prog_fd, key = syscalltbl__id_at_idx(e_machine, i);
 
@@ -4060,7 +4044,7 @@ static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace, int e_m
 		 * For now we're just reusing the sys_enter prog, and if it
 		 * already has an augmenter, we don't need to find one.
 		 */
-		if (sc->bpf_prog.sys_enter != trace->skel->progs.syscall_unaugmented)
+		if (sc->bpf_prog.sys_enter != unaugmented_prog)
 			continue;
 
 		/*
@@ -4085,7 +4069,13 @@ static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace, int e_m
 
 	return err;
 }
-#endif // HAVE_BPF_SKEL
+#else // !HAVE_LIBBPF_SUPPORT
+static int trace__init_syscalls_bpf_prog_array_maps(struct trace *trace __maybe_unused,
+						    int e_machine __maybe_unused)
+{
+	return -1;
+}
+#endif // HAVE_LIBBPF_SUPPORT
 
 static int trace__set_ev_qualifier_filter(struct trace *trace)
 {
@@ -4094,24 +4084,6 @@ static int trace__set_ev_qualifier_filter(struct trace *trace)
 	return 0;
 }
 
-static int bpf_map__set_filter_pids(struct bpf_map *map __maybe_unused,
-				    size_t npids __maybe_unused, pid_t *pids __maybe_unused)
-{
-	int err = 0;
-#ifdef HAVE_LIBBPF_SUPPORT
-	bool value = true;
-	int map_fd = bpf_map__fd(map);
-	size_t i;
-
-	for (i = 0; i < npids; ++i) {
-		err = bpf_map_update_elem(map_fd, &pids[i], &value, BPF_ANY);
-		if (err)
-			break;
-	}
-#endif
-	return err;
-}
-
 static int trace__set_filter_loop_pids(struct trace *trace)
 {
 	unsigned int nr = 1, err;
@@ -4140,8 +4112,8 @@ static int trace__set_filter_loop_pids(struct trace *trace)
 	thread__put(thread);
 
 	err = evlist__append_tp_filter_pids(trace->evlist, nr, pids);
-	if (!err && trace->filter_pids.map)
-		err = bpf_map__set_filter_pids(trace->filter_pids.map, nr, pids);
+	if (!err)
+		err = augmented_syscalls__set_filter_pids(nr, pids);
 
 	return err;
 }
@@ -4158,8 +4130,8 @@ static int trace__set_filter_pids(struct trace *trace)
 	if (trace->filter_pids.nr > 0) {
 		err = evlist__append_tp_filter_pids(trace->evlist, trace->filter_pids.nr,
 						    trace->filter_pids.entries);
-		if (!err && trace->filter_pids.map) {
-			err = bpf_map__set_filter_pids(trace->filter_pids.map, trace->filter_pids.nr,
+		if (!err) {
+			err = augmented_syscalls__set_filter_pids(trace->filter_pids.nr,
 						       trace->filter_pids.entries);
 		}
 	} else if (perf_thread_map__pid(trace->evlist->core.threads, 0) == -1) {
@@ -4482,41 +4454,18 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	err = evlist__open(evlist);
 	if (err < 0)
 		goto out_error_open;
-#ifdef HAVE_BPF_SKEL
-	if (trace->syscalls.events.bpf_output) {
-		struct perf_cpu cpu;
 
-		/*
-		 * Set up the __augmented_syscalls__ BPF map to hold for each
-		 * CPU the bpf-output event's file descriptor.
-		 */
-		perf_cpu_map__for_each_cpu(cpu, i, trace->syscalls.events.bpf_output->core.cpus) {
-			int mycpu = cpu.cpu;
+	augmented_syscalls__setup_bpf_output();
 
-			bpf_map__update_elem(trace->skel->maps.__augmented_syscalls__,
-					&mycpu, sizeof(mycpu),
-					xyarray__entry(trace->syscalls.events.bpf_output->core.fd,
-						       mycpu, 0),
-					sizeof(__u32), BPF_ANY);
-		}
-	}
-
-	if (trace->skel)
-		trace->filter_pids.map = trace->skel->maps.pids_filtered;
-#endif
 	err = trace__set_filter_pids(trace);
 	if (err < 0)
 		goto out_error_mem;
 
-#ifdef HAVE_BPF_SKEL
-	if (trace->skel && trace->skel->progs.sys_enter) {
-		/*
-		 * TODO: Initialize for all host binary machine types, not just
-		 * those matching the perf binary.
-		 */
-		trace__init_syscalls_bpf_prog_array_maps(trace, EM_HOST);
-	}
-#endif
+	/*
+	 * TODO: Initialize for all host binary machine types, not just
+	 * those matching the perf binary.
+	 */
+	trace__init_syscalls_bpf_prog_array_maps(trace, EM_HOST);
 
 	if (trace->ev_qualifier_ids.nr > 0) {
 		err = trace__set_ev_qualifier_filter(trace);
@@ -5379,18 +5328,6 @@ static void trace__exit(struct trace *trace)
 #endif
 }
 
-#ifdef HAVE_BPF_SKEL
-static int bpf__setup_bpf_output(struct evlist *evlist)
-{
-	int err = parse_event(evlist, "bpf-output/no-inherit=1,name=__augmented_syscalls__/");
-
-	if (err)
-		pr_debug("ERROR: failed to create the \"__augmented_syscalls__\" bpf-output event\n");
-
-	return err;
-}
-#endif
-
 int cmd_trace(int argc, const char **argv)
 {
 	const char *trace_usage[] = {
@@ -5587,7 +5524,6 @@ int cmd_trace(int argc, const char **argv)
 				       "cgroup monitoring only available in system-wide mode");
 	}
 
-#ifdef HAVE_BPF_SKEL
 	if (!trace.trace_syscalls)
 		goto skip_augmentation;
 
@@ -5606,42 +5542,17 @@ int cmd_trace(int argc, const char **argv)
 			goto skip_augmentation;
 	}
 
-	trace.skel = augmented_raw_syscalls_bpf__open();
-	if (!trace.skel) {
-		pr_debug("Failed to open augmented syscalls BPF skeleton");
-	} else {
-		/*
-		 * Disable attaching the BPF programs except for sys_enter and
-		 * sys_exit that tail call into this as necessary.
-		 */
-		struct bpf_program *prog;
+	err = augmented_syscalls__prepare();
+	if (err < 0)
+		goto skip_augmentation;
 
-		bpf_object__for_each_program(prog, trace.skel->obj) {
-			if (prog != trace.skel->progs.sys_enter && prog != trace.skel->progs.sys_exit)
-				bpf_program__set_autoattach(prog, /*autoattach=*/false);
-		}
+	trace__add_syscall_newtp(&trace);
 
-		err = augmented_raw_syscalls_bpf__load(trace.skel);
+	err = augmented_syscalls__create_bpf_output(trace.evlist);
+	if (err == 0)
+		trace.syscalls.events.bpf_output = evlist__last(trace.evlist);
 
-		if (err < 0) {
-			libbpf_strerror(err, bf, sizeof(bf));
-			pr_debug("Failed to load augmented syscalls BPF skeleton: %s\n", bf);
-		} else {
-			augmented_raw_syscalls_bpf__attach(trace.skel);
-			trace__add_syscall_newtp(&trace);
-		}
-	}
-
-	err = bpf__setup_bpf_output(trace.evlist);
-	if (err) {
-		libbpf_strerror(err, bf, sizeof(bf));
-		pr_err("ERROR: Setup BPF output event failed: %s\n", bf);
-		goto out;
-	}
-	trace.syscalls.events.bpf_output = evlist__last(trace.evlist);
-	assert(evsel__name_is(trace.syscalls.events.bpf_output, "__augmented_syscalls__"));
 skip_augmentation:
-#endif
 	err = -1;
 
 	if (trace.trace_pgfaults) {
@@ -5833,8 +5744,6 @@ int cmd_trace(int argc, const char **argv)
 		fclose(trace.output);
 out:
 	trace__exit(&trace);
-#ifdef HAVE_BPF_SKEL
-	augmented_raw_syscalls_bpf__destroy(trace.skel);
-#endif
+	augmented_syscalls__cleanup();
 	return err;
 }
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 8a23eb767fb2..07dc1e704f90 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -176,6 +176,7 @@ perf-util-$(CONFIG_PERF_BPF_SKEL) += btf.o
 
 ifeq ($(CONFIG_TRACE),y)
   perf-util-$(CONFIG_PERF_BPF_SKEL) += bpf-trace-summary.o
+  perf-util-$(CONFIG_PERF_BPF_SKEL) += bpf_trace_augment.o
 endif
 
 ifeq ($(CONFIG_LIBTRACEEVENT),y)
diff --git a/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c b/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c
index e4352881e3fa..cb86e261b4de 100644
--- a/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c
+++ b/tools/perf/util/bpf_skel/augmented_raw_syscalls.bpf.c
@@ -7,7 +7,6 @@
  */
 
 #include "vmlinux.h"
-#include "../trace_augment.h"
 
 #include <bpf/bpf_helpers.h>
 #include <linux/limits.h>
@@ -27,6 +26,8 @@
 
 #define MAX_CPUS  4096
 
+#define TRACE_AUG_MAX_BUF 32 /* for buffer augmentation in perf trace */
+
 /* bpf-output associated map */
 struct __augmented_syscalls__ {
 	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
diff --git a/tools/perf/util/bpf_trace_augment.c b/tools/perf/util/bpf_trace_augment.c
new file mode 100644
index 000000000000..56ed17534caa
--- /dev/null
+++ b/tools/perf/util/bpf_trace_augment.c
@@ -0,0 +1,143 @@
+#include <bpf/libbpf.h>
+#include <internal/xyarray.h>
+
+#include "util/debug.h"
+#include "util/evlist.h"
+#include "util/trace_augment.h"
+
+#include "bpf_skel/augmented_raw_syscalls.skel.h"
+
+static struct augmented_raw_syscalls_bpf *skel;
+static struct evsel *bpf_output;
+
+int augmented_syscalls__prepare(void)
+{
+	struct bpf_program *prog;
+	char buf[128];
+	int err;
+
+	skel = augmented_raw_syscalls_bpf__open();
+	if (!skel) {
+		pr_debug("Failed to open augmented syscalls BPF skeleton\n");
+		return -errno;
+	}
+
+	/*
+	 * Disable attaching the BPF programs except for sys_enter and
+	 * sys_exit that tail call into this as necessary.
+	 */
+	bpf_object__for_each_program(prog, skel->obj) {
+		if (prog != skel->progs.sys_enter && prog != skel->progs.sys_exit)
+			bpf_program__set_autoattach(prog, /*autoattach=*/false);
+	}
+
+	err = augmented_raw_syscalls_bpf__load(skel);
+	if (err < 0) {
+		libbpf_strerror(err, buf, sizeof(buf));
+		pr_debug("Failed to load augmented syscalls BPF skeleton: %s\n", buf);
+		return err;
+	}
+
+	augmented_raw_syscalls_bpf__attach(skel);
+	return 0;
+}
+
+int augmented_syscalls__create_bpf_output(struct evlist *evlist)
+{
+	int err = parse_event(evlist, "bpf-output/no-inherit=1,name=__augmented_syscalls__/");
+
+	if (err) {
+		pr_err("ERROR: Setup BPF output event failed: %d\n", err);
+		return err;
+	}
+
+	bpf_output = evlist__last(evlist);
+	assert(evsel__name_is(bpf_output, "__augmented_syscalls__"));
+
+	return 0;
+}
+
+void augmented_syscalls__setup_bpf_output(void)
+{
+	struct perf_cpu cpu;
+	int i;
+
+	if (bpf_output == NULL)
+		return;
+
+	/*
+	 * Set up the __augmented_syscalls__ BPF map to hold for each
+	 * CPU the bpf-output event's file descriptor.
+	 */
+	perf_cpu_map__for_each_cpu(cpu, i, bpf_output->core.cpus) {
+		int mycpu = cpu.cpu;
+
+		bpf_map__update_elem(skel->maps.__augmented_syscalls__,
+				     &mycpu, sizeof(mycpu),
+				     xyarray__entry(bpf_output->core.fd,
+						    mycpu, 0),
+				     sizeof(__u32), BPF_ANY);
+	}
+}
+
+int augmented_syscalls__set_filter_pids(unsigned int nr, pid_t *pids)
+{
+	bool value = true;
+	int err = 0;
+
+	if (skel == NULL)
+		return 0;
+
+	for (size_t i = 0; i < nr; ++i) {
+		err = bpf_map__update_elem(skel->maps.pids_filtered, &pids[i],
+					   sizeof(*pids), &value, sizeof(value),
+					   BPF_ANY);
+		if (err)
+			break;
+	}
+	return err;
+}
+
+int augmented_syscalls__get_map_fds(int *enter_fd, int *exit_fd, int *beauty_fd)
+{
+	if (skel == NULL)
+		return -1;
+
+	*enter_fd = bpf_map__fd(skel->maps.syscalls_sys_enter);
+	*exit_fd  = bpf_map__fd(skel->maps.syscalls_sys_exit);
+	*beauty_fd = bpf_map__fd(skel->maps.beauty_map_enter);
+
+	if (*enter_fd < 0 || *exit_fd < 0 || *beauty_fd < 0) {
+		pr_err("Error: failed to get syscall or beauty map fd\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+struct bpf_program *augmented_syscalls__unaugmented(void)
+{
+	return skel->progs.syscall_unaugmented;
+}
+
+struct bpf_program *augmented_syscalls__find_by_title(const char *name)
+{
+	struct bpf_program *pos;
+	const char *sec_name;
+
+	if (skel->obj == NULL)
+		return NULL;
+
+	bpf_object__for_each_program(pos, skel->obj) {
+		sec_name = bpf_program__section_name(pos);
+		if (sec_name && !strcmp(sec_name, name))
+			return pos;
+	}
+
+	return NULL;
+}
+
+void augmented_syscalls__cleanup(void)
+{
+	augmented_raw_syscalls_bpf__destroy(skel);
+}
diff --git a/tools/perf/util/trace_augment.h b/tools/perf/util/trace_augment.h
index 57a3e5045937..4f729bc67753 100644
--- a/tools/perf/util/trace_augment.h
+++ b/tools/perf/util/trace_augment.h
@@ -1,6 +1,66 @@
 #ifndef TRACE_AUGMENT_H
 #define TRACE_AUGMENT_H
 
-#define TRACE_AUG_MAX_BUF 32 /* for buffer augmentation in perf trace */
+#include <linux/compiler.h>
+
+struct bpf_program;
+struct evlist;
+
+#ifdef HAVE_BPF_SKEL
+
+int augmented_syscalls__prepare(void);
+int augmented_syscalls__create_bpf_output(struct evlist *evlist);
+void augmented_syscalls__setup_bpf_output(void);
+int augmented_syscalls__set_filter_pids(unsigned int nr, pid_t *pids);
+int augmented_syscalls__get_map_fds(int *enter_fd, int *exit_fd, int *beauty_fd);
+struct bpf_program *augmented_syscalls__find_by_title(const char *name);
+struct bpf_program *augmented_syscalls__unaugmented(void);
+void augmented_syscalls__cleanup(void);
+
+#else /* !HAVE_BPF_SKEL */
+
+static inline int augmented_syscalls__prepare(void)
+{
+	return -1;
+}
+
+static inline int augmented_syscalls__create_bpf_output(struct evlist *evlist __maybe_unused)
+{
+	return -1;
+}
+
+static inline void augmented_syscalls__setup_bpf_output(void)
+{
+}
+
+static inline int augmented_syscalls__set_filter_pids(unsigned int nr __maybe_unused,
+						      pid_t *pids __maybe_unused)
+{
+	return 0;
+}
+
+static inline int augmented_syscalls__get_map_fds(int *enter_fd __maybe_unused,
+						  int *exit_fd __maybe_unused,
+						  int *beauty_fd __maybe_unused)
+{
+	return -1;
+}
+
+static inline struct bpf_program *
+augmented_syscalls__find_by_title(const char *name __maybe_unused)
+{
+	return NULL;
+}
+
+static inline struct bpf_program *augmented_syscalls__unaugmented(void)
+{
+	return NULL;
+}
+
+static inline void augmented_syscalls__cleanup(void)
+{
+}
+
+#endif /* HAVE_BPF_SKEL */
 
 #endif

From ac871873bac736edd3945ade222d2902c0b10ac2 Mon Sep 17 00:00:00 2001
From: Thomas Falcon <thomas.falcon@intel.com>
Date: Thu, 12 Jun 2025 11:36:58 -0500
Subject: [PATCH 055/179] perf tools: move perf_pmus__find_core_pmu() prototype
 to pmus.h

perf_pmus__find_core_pmu() is implemented in util/pmus.c but its
prototpye is in util/pmu.h. Move it to util/pmus.h.

Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Falcon <thomas.falcon@intel.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250612163659.1357950-1-thomas.falcon@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pmu.h  | 1 -
 tools/perf/util/pmus.h | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index a4a08192154c..1ebcf0242af8 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -302,7 +302,6 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char
 				  bool eager_load);
 struct perf_pmu *perf_pmu__create_placeholder_core_pmu(struct list_head *core_pmus);
 void perf_pmu__delete(struct perf_pmu *pmu);
-struct perf_pmu *perf_pmus__find_core_pmu(void);
 
 const char *perf_pmu__name_from_config(struct perf_pmu *pmu, u64 config);
 bool perf_pmu__is_fake(const struct perf_pmu *pmu);
diff --git a/tools/perf/util/pmus.h b/tools/perf/util/pmus.h
index 2794d8c3a466..33ecf765a92f 100644
--- a/tools/perf/util/pmus.h
+++ b/tools/perf/util/pmus.h
@@ -35,5 +35,6 @@ struct perf_pmu *perf_pmus__add_test_hwmon_pmu(int hwmon_dir,
 					       const char *sysfs_name,
 					       const char *name);
 struct perf_pmu *perf_pmus__fake_pmu(void);
+struct perf_pmu *perf_pmus__find_core_pmu(void);
 
 #endif /* __PMUS_H */

From c72bf82f96019216bb0a291d39c244977603661f Mon Sep 17 00:00:00 2001
From: Thomas Falcon <thomas.falcon@intel.com>
Date: Thu, 12 Jun 2025 11:36:59 -0500
Subject: [PATCH 056/179] perf top: populate PMU capabilities data in perf_env

Calling perf top with branch filters enabled on Intel CPU's
with branch counters logging (A.K.A LBR event logging [1]) support
results in a segfault.

$ perf top  -e '{cpu_core/cpu-cycles/,cpu_core/event=0xc6,umask=0x3,frontend=0x11,name=frontend_retired_dsb_miss/}' -j any,counter
...
Thread 27 "perf" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffafff76c0 (LWP 949003)]
perf_env__find_br_cntr_info (env=0xf66dc0 <perf_env>, nr=0x0, width=0x7fffafff62c0) at util/env.c:653
653			*width = env->cpu_pmu_caps ? env->br_cntr_width :
(gdb) bt
 #0  perf_env__find_br_cntr_info (env=0xf66dc0 <perf_env>, nr=0x0, width=0x7fffafff62c0) at util/env.c:653
 #1  0x00000000005b1599 in symbol__account_br_cntr (branch=0x7fffcc3db580, evsel=0xfea2d0, offset=12, br_cntr=8) at util/annotate.c:345
 #2  0x00000000005b17fb in symbol__account_cycles (addr=5658172, start=5658160, sym=0x7fffcc0ee420, cycles=539, evsel=0xfea2d0, br_cntr=8) at util/annotate.c:389
 #3  0x00000000005b1976 in addr_map_symbol__account_cycles (ams=0x7fffcd7b01d0, start=0x7fffcd7b02b0, cycles=539, evsel=0xfea2d0, br_cntr=8) at util/annotate.c:422
 #4  0x000000000068d57f in hist__account_cycles (bs=0x110d288, al=0x7fffafff6540, sample=0x7fffafff6760, nonany_branch_mode=false, total_cycles=0x0, evsel=0xfea2d0) at util/hist.c:2850
 #5  0x0000000000446216 in hist_iter__top_callback (iter=0x7fffafff6590, al=0x7fffafff6540, single=true, arg=0x7fffffff9e00) at builtin-top.c:737
 #6  0x0000000000689787 in hist_entry_iter__add (iter=0x7fffafff6590, al=0x7fffafff6540, max_stack_depth=127, arg=0x7fffffff9e00) at util/hist.c:1359
 #7  0x0000000000446710 in perf_event__process_sample (tool=0x7fffffff9e00, event=0x110d250, evsel=0xfea2d0, sample=0x7fffafff6760, machine=0x108c968) at builtin-top.c:845
 #8  0x0000000000447735 in deliver_event (qe=0x7fffffffa120, qevent=0x10fc200) at builtin-top.c:1211
 #9  0x000000000064ccae in do_flush (oe=0x7fffffffa120, show_progress=false) at util/ordered-events.c:245
 #10 0x000000000064d005 in __ordered_events__flush (oe=0x7fffffffa120, how=OE_FLUSH__TOP, timestamp=0) at util/ordered-events.c:324
 #11 0x000000000064d0ef in ordered_events__flush (oe=0x7fffffffa120, how=OE_FLUSH__TOP) at util/ordered-events.c:342
 #12 0x00000000004472a9 in process_thread (arg=0x7fffffff9e00) at builtin-top.c:1120
 #13 0x00007ffff6e7dba8 in start_thread (arg=<optimized out>) at pthread_create.c:448
 #14 0x00007ffff6f01b8c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

The cause is that perf_env__find_br_cntr_info tries to access a
null pointer pmu_caps in the perf_env struct. A similar issue exists
for homogeneous core systems which use the cpu_pmu_caps structure.

Fix this by populating cpu_pmu_caps and pmu_caps structures with
values from sysfs when calling perf top with branch stack sampling
enabled.

[1], LBR event logging introduced here:
https://lore.kernel.org/all/20231025201626.3000228-5-kan.liang@linux.intel.com/

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250612163659.1357950-2-thomas.falcon@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-top.c |   8 +++
 tools/perf/util/env.c    | 110 +++++++++++++++++++++++++++++++++++++++
 tools/perf/util/env.h    |   1 +
 3 files changed, 119 insertions(+)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 051ded5ba9ba..c77e195ea786 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1734,6 +1734,14 @@ int cmd_top(int argc, const char **argv)
 	if (opts->branch_stack && callchain_param.enabled)
 		symbol_conf.show_branchflag_count = true;
 
+	if (opts->branch_stack) {
+		status = perf_env__read_core_pmu_caps(&perf_env);
+		if (status) {
+			pr_err("PMU capability data is not available\n");
+			goto out_delete_evlist;
+		}
+	}
+
 	sort__mode = SORT_MODE__TOP;
 	/* display thread wants entries to be collapsed in a different tree */
 	perf_hpp_list.need_collapse = 1;
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 05a4f2657d72..ee51378fb0d9 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -433,6 +433,116 @@ static int perf_env__read_nr_cpus_avail(struct perf_env *env)
 	return env->nr_cpus_avail ? 0 : -ENOENT;
 }
 
+static int __perf_env__read_core_pmu_caps(const struct perf_pmu *pmu,
+					  int *nr_caps, char ***caps,
+					  unsigned int *max_branches,
+					  unsigned int *br_cntr_nr,
+					  unsigned int *br_cntr_width)
+{
+	struct perf_pmu_caps *pcaps = NULL;
+	char *ptr, **tmp;
+	int ret = 0;
+
+	*nr_caps = 0;
+	*caps = NULL;
+
+	if (!pmu->nr_caps)
+		return 0;
+
+	*caps = calloc(pmu->nr_caps, sizeof(char *));
+	if (!*caps)
+		return -ENOMEM;
+
+	tmp = *caps;
+	list_for_each_entry(pcaps, &pmu->caps, list) {
+		if (asprintf(&ptr, "%s=%s", pcaps->name, pcaps->value) < 0) {
+			ret = -ENOMEM;
+			goto error;
+		}
+
+		*tmp++ = ptr;
+
+		if (!strcmp(pcaps->name, "branches"))
+			*max_branches = atoi(pcaps->value);
+		else if (!strcmp(pcaps->name, "branch_counter_nr"))
+			*br_cntr_nr = atoi(pcaps->value);
+		else if (!strcmp(pcaps->name, "branch_counter_width"))
+			*br_cntr_width = atoi(pcaps->value);
+	}
+	*nr_caps = pmu->nr_caps;
+	return 0;
+error:
+	while (tmp-- != *caps)
+		zfree(tmp);
+	zfree(caps);
+	*nr_caps = 0;
+	return ret;
+}
+
+int perf_env__read_core_pmu_caps(struct perf_env *env)
+{
+	struct pmu_caps *pmu_caps;
+	struct perf_pmu *pmu = NULL;
+	int nr_pmu, i = 0, j;
+	int ret;
+
+	nr_pmu = perf_pmus__num_core_pmus();
+
+	if (!nr_pmu)
+		return -ENODEV;
+
+	if (nr_pmu == 1) {
+		pmu = perf_pmus__find_core_pmu();
+		if (!pmu)
+			return -ENODEV;
+		ret = perf_pmu__caps_parse(pmu);
+		if (ret < 0)
+			return ret;
+		return __perf_env__read_core_pmu_caps(pmu, &env->nr_cpu_pmu_caps,
+						      &env->cpu_pmu_caps,
+						      &env->max_branches,
+						      &env->br_cntr_nr,
+						      &env->br_cntr_width);
+	}
+
+	pmu_caps = calloc(nr_pmu, sizeof(*pmu_caps));
+	if (!pmu_caps)
+		return -ENOMEM;
+
+	while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
+		if (perf_pmu__caps_parse(pmu) <= 0)
+			continue;
+		ret = __perf_env__read_core_pmu_caps(pmu, &pmu_caps[i].nr_caps,
+						     &pmu_caps[i].caps,
+						     &pmu_caps[i].max_branches,
+						     &pmu_caps[i].br_cntr_nr,
+						     &pmu_caps[i].br_cntr_width);
+		if (ret)
+			goto error;
+
+		pmu_caps[i].pmu_name = strdup(pmu->name);
+		if (!pmu_caps[i].pmu_name) {
+			ret = -ENOMEM;
+			goto error;
+		}
+		i++;
+	}
+
+	env->nr_pmus_with_caps = nr_pmu;
+	env->pmu_caps = pmu_caps;
+
+	return 0;
+error:
+	for (i = 0; i < nr_pmu; i++) {
+		for (j = 0; j < pmu_caps[i].nr_caps; j++)
+			zfree(&pmu_caps[i].caps[j]);
+		zfree(&pmu_caps[i].caps);
+		zfree(&pmu_caps[i].pmu_name);
+	}
+	zfree(&pmu_caps);
+	return ret;
+}
+
 const char *perf_env__raw_arch(struct perf_env *env)
 {
 	return env && !perf_env__read_arch(env) ? env->arch : "unknown";
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index c90c1d717e73..d8df59072529 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -152,6 +152,7 @@ struct btf_node;
 
 extern struct perf_env perf_env;
 
+int perf_env__read_core_pmu_caps(struct perf_env *env);
 void perf_env__exit(struct perf_env *env);
 
 int perf_env__kernel_is_64_bit(struct perf_env *env);

From 55a18d2f3ff79c9082225f44e0abbaea6286bf99 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@kernel.org>
Date: Wed, 25 Jun 2025 13:23:08 -0700
Subject: [PATCH 057/179] perf build: enable -fno-strict-aliasing

perf pulls in code from kernel headers that assumes it is being built
with -fno-strict-aliasing, namely put_unaligned_*() from
<linux/unaligned.h> which write the data using packed structs that lack
the may_alias attribute.  Enable -fno-strict-aliasing to prevent
miscompilations in sha1.c which would otherwise occur due to this issue.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625202311.23244-2-ebiggers@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Makefile.config | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 24736b0bbb30..70a3e771c7c0 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -19,6 +19,10 @@ detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
 CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
 HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
 
+# This is required because the kernel is built with this and some of the code
+# borrowed from kernel headers depends on it, e.g. put_unaligned_*().
+CFLAGS += -fno-strict-aliasing
+
 # Enabled Wthread-safety analysis for clang builds.
 ifeq ($(CC_NO_CLANG), 0)
   CFLAGS += -Wthread-safety

From 43830468b6436811ff732b062f8d6306c6eddb77 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@kernel.org>
Date: Wed, 25 Jun 2025 13:23:09 -0700
Subject: [PATCH 058/179] perf util: add a basic SHA-1 implementation

SHA-1 can be written in fewer than 100 lines of code.  Just add a basic
SHA-1 implementation so that there's no need to use an external library
or try to pull in the kernel's SHA-1 implementation.  The kernel's SHA-1
implementation is not really intended to be pulled into userspace
programs in the way that it was proposed to do so for perf
(https://lore.kernel.org/r/20250521225307.743726-3-yuzhuo@google.com/),
and it's also likely to undergo some refactoring in the future.  There's
no need to tie userspace tools to it.

Include a test for sha1() in the util test suite.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625202311.23244-3-ebiggers@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/util.c | 45 ++++++++++++++++++-
 tools/perf/util/Build   |  1 +
 tools/perf/util/sha1.c  | 97 +++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/sha1.h  |  6 +++
 4 files changed, 148 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/util/sha1.c
 create mode 100644 tools/perf/util/sha1.h

diff --git a/tools/perf/tests/util.c b/tools/perf/tests/util.c
index 6366db5cbf8c..b273d287e164 100644
--- a/tools/perf/tests/util.c
+++ b/tools/perf/tests/util.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "tests.h"
 #include "util/debug.h"
+#include "util/sha1.h"
 
 #include <linux/compiler.h>
 #include <stdlib.h>
@@ -16,6 +17,48 @@ static int test_strreplace(char needle, const char *haystack,
 	return ret == 0;
 }
 
+#define MAX_LEN 512
+
+/* Test sha1() for all lengths from 0 to MAX_LEN inclusively. */
+static int test_sha1(void)
+{
+	u8 data[MAX_LEN];
+	size_t digests_size = (MAX_LEN + 1) * SHA1_DIGEST_SIZE;
+	u8 *digests;
+	u8 digest_of_digests[SHA1_DIGEST_SIZE];
+	/*
+	 * The correctness of this value was verified by running this test with
+	 * sha1() replaced by OpenSSL's SHA1().
+	 */
+	static const u8 expected_digest_of_digests[SHA1_DIGEST_SIZE] = {
+		0x74, 0xcd, 0x4c, 0xb9, 0xd8, 0xa6, 0xd5, 0x95, 0x22, 0x8b,
+		0x7e, 0xd6, 0x8b, 0x7e, 0x46, 0x95, 0x31, 0x9b, 0xa2, 0x43,
+	};
+	size_t i;
+
+	digests = malloc(digests_size);
+	TEST_ASSERT_VAL("failed to allocate digests", digests != NULL);
+
+	/* Generate MAX_LEN bytes of data. */
+	for (i = 0; i < MAX_LEN; i++)
+		data[i] = i;
+
+	/* Calculate a SHA-1 for each length 0 through MAX_LEN inclusively. */
+	for (i = 0; i <= MAX_LEN; i++)
+		sha1(data, i, &digests[i * SHA1_DIGEST_SIZE]);
+
+	/* Calculate digest of all digests calculated above. */
+	sha1(digests, digests_size, digest_of_digests);
+
+	free(digests);
+
+	/* Check for the expected result. */
+	TEST_ASSERT_VAL("wrong output from sha1()",
+			memcmp(digest_of_digests, expected_digest_of_digests,
+			       SHA1_DIGEST_SIZE) == 0);
+	return 0;
+}
+
 static int test__util(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
 {
 	TEST_ASSERT_VAL("empty string", test_strreplace(' ', "", "123", ""));
@@ -25,7 +68,7 @@ static int test__util(struct test_suite *t __maybe_unused, int subtest __maybe_u
 	TEST_ASSERT_VAL("replace long", test_strreplace('a', "abcabc", "longlong",
 							"longlongbclonglongbc"));
 
-	return 0;
+	return test_sha1();
 }
 
 DEFINE_SUITE("util", util);
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 07dc1e704f90..45515b8f615a 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -41,6 +41,7 @@ perf-util-y += rbtree.o
 perf-util-y += libstring.o
 perf-util-y += bitmap.o
 perf-util-y += hweight.o
+perf-util-y += sha1.o
 perf-util-y += smt.o
 perf-util-y += strbuf.o
 perf-util-y += string.o
diff --git a/tools/perf/util/sha1.c b/tools/perf/util/sha1.c
new file mode 100644
index 000000000000..7032fa4ff3fd
--- /dev/null
+++ b/tools/perf/util/sha1.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SHA-1 message digest algorithm
+ *
+ * Copyright 2025 Google LLC
+ */
+#include <linux/bitops.h>
+#include <linux/kernel.h>
+#include <linux/unaligned.h>
+#include <string.h>
+
+#include "sha1.h"
+
+#define SHA1_BLOCK_SIZE 64
+
+static const u32 sha1_K[4] = { 0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6 };
+
+#define SHA1_ROUND(i, a, b, c, d, e)                                          \
+	do {                                                                  \
+		if ((i) >= 16)                                                \
+			w[i] = rol32(w[(i) - 16] ^ w[(i) - 14] ^ w[(i) - 8] ^ \
+					     w[(i) - 3],                      \
+				     1);                                      \
+		e += w[i] + rol32(a, 5) + sha1_K[(i) / 20];                   \
+		if ((i) < 20)                                                 \
+			e += (b & (c ^ d)) ^ d;                               \
+		else if ((i) < 40 || (i) >= 60)                               \
+			e += b ^ c ^ d;                                       \
+		else                                                          \
+			e += (c & d) ^ (b & (c ^ d));                         \
+		b = rol32(b, 30);                                             \
+		/* The new (a, b, c, d, e) is the old (e, a, b, c, d). */     \
+	} while (0)
+
+#define SHA1_5ROUNDS(i)                             \
+	do {                                        \
+		SHA1_ROUND((i) + 0, a, b, c, d, e); \
+		SHA1_ROUND((i) + 1, e, a, b, c, d); \
+		SHA1_ROUND((i) + 2, d, e, a, b, c); \
+		SHA1_ROUND((i) + 3, c, d, e, a, b); \
+		SHA1_ROUND((i) + 4, b, c, d, e, a); \
+	} while (0)
+
+#define SHA1_20ROUNDS(i)                \
+	do {                            \
+		SHA1_5ROUNDS((i) + 0);  \
+		SHA1_5ROUNDS((i) + 5);  \
+		SHA1_5ROUNDS((i) + 10); \
+		SHA1_5ROUNDS((i) + 15); \
+	} while (0)
+
+static void sha1_blocks(u32 h[5], const u8 *data, size_t nblocks)
+{
+	while (nblocks--) {
+		u32 a = h[0];
+		u32 b = h[1];
+		u32 c = h[2];
+		u32 d = h[3];
+		u32 e = h[4];
+		u32 w[80];
+
+		for (int i = 0; i < 16; i++)
+			w[i] = get_unaligned_be32(&data[i * 4]);
+		SHA1_20ROUNDS(0);
+		SHA1_20ROUNDS(20);
+		SHA1_20ROUNDS(40);
+		SHA1_20ROUNDS(60);
+
+		h[0] += a;
+		h[1] += b;
+		h[2] += c;
+		h[3] += d;
+		h[4] += e;
+		data += SHA1_BLOCK_SIZE;
+	}
+}
+
+/* Calculate the SHA-1 message digest of the given data. */
+void sha1(const void *data, size_t len, u8 out[SHA1_DIGEST_SIZE])
+{
+	u32 h[5] = { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476,
+		     0xC3D2E1F0 };
+	u8 final_data[2 * SHA1_BLOCK_SIZE] = { 0 };
+	size_t final_len = len % SHA1_BLOCK_SIZE;
+
+	sha1_blocks(h, data, len / SHA1_BLOCK_SIZE);
+
+	memcpy(final_data, data + len - final_len, final_len);
+	final_data[final_len] = 0x80;
+	final_len = round_up(final_len + 9, SHA1_BLOCK_SIZE);
+	put_unaligned_be64((u64)len * 8, &final_data[final_len - 8]);
+
+	sha1_blocks(h, final_data, final_len / SHA1_BLOCK_SIZE);
+
+	for (int i = 0; i < 5; i++)
+		put_unaligned_be32(h[i], &out[i * 4]);
+}
diff --git a/tools/perf/util/sha1.h b/tools/perf/util/sha1.h
new file mode 100644
index 000000000000..e92c9966e1d5
--- /dev/null
+++ b/tools/perf/util/sha1.h
@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include <linux/types.h>
+
+#define SHA1_DIGEST_SIZE 20
+
+void sha1(const void *data, size_t len, u8 out[SHA1_DIGEST_SIZE]);

From e3f612c1d8f3945bb0cc8aad173fc12a3b20dc2a Mon Sep 17 00:00:00 2001
From: Yuzhuo Jing <yuzhuo@google.com>
Date: Wed, 25 Jun 2025 13:23:10 -0700
Subject: [PATCH 059/179] perf genelf: Remove libcrypto dependency and use
 built-in sha1()

genelf is the only file in perf that depends on libcrypto (or openssl)
which only calculates a Build ID (SHA1, MD5, or URANDOM).  SHA1 was
expected to be the default option, but MD5 was used by default due to
previous issues when linking against Java.  This commit switches genelf
to use the in-house sha1(), and also removes MD5 and URANDOM options
since we have a reliable SHA1 implementation to rely on.  It passes the
tools/perf/tests/shell/test_java_symbol.sh test.

Signed-off-by: Yuzhuo Jing <yuzhuo@google.com>
Co-developed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625202311.23244-4-ebiggers@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/genelf.c | 85 ++--------------------------------------
 1 file changed, 3 insertions(+), 82 deletions(-)

diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c
index cdce7f173d00..fcf86a27f69e 100644
--- a/tools/perf/util/genelf.c
+++ b/tools/perf/util/genelf.c
@@ -12,15 +12,14 @@
 #include <libelf.h>
 #include <string.h>
 #include <stdlib.h>
-#include <unistd.h>
 #include <inttypes.h>
-#include <fcntl.h>
 #include <err.h>
 #ifdef HAVE_LIBDW_SUPPORT
 #include <dwarf.h>
 #endif
 
 #include "genelf.h"
+#include "sha1.h"
 #include "../util/jitdump.h"
 #include <linux/compiler.h>
 
@@ -28,25 +27,6 @@
 #define NT_GNU_BUILD_ID 3
 #endif
 
-#define BUILD_ID_URANDOM /* different uuid for each run */
-
-#ifdef HAVE_LIBCRYPTO_SUPPORT
-
-#define BUILD_ID_MD5
-#undef BUILD_ID_SHA	/* does not seem to work well when linked with Java */
-#undef BUILD_ID_URANDOM /* different uuid for each run */
-
-#ifdef BUILD_ID_SHA
-#include <openssl/sha.h>
-#endif
-
-#ifdef BUILD_ID_MD5
-#include <openssl/evp.h>
-#include <openssl/md5.h>
-#endif
-#endif
-
-
 typedef struct {
   unsigned int namesz;  /* Size of entry's owner string */
   unsigned int descsz;  /* Size of the note descriptor */
@@ -71,7 +51,7 @@ static char shd_string_table[] = {
 static struct buildid_note {
 	Elf_Note desc;		/* descsz: size of build-id, must be multiple of 4 */
 	char	 name[4];	/* GNU\0 */
-	char	 build_id[20];
+	u8	 build_id[SHA1_DIGEST_SIZE];
 } bnote;
 
 static Elf_Sym symtab[]={
@@ -92,65 +72,6 @@ static Elf_Sym symtab[]={
 	}
 };
 
-#ifdef BUILD_ID_URANDOM
-static void
-gen_build_id(struct buildid_note *note,
-	     unsigned long load_addr __maybe_unused,
-	     const void *code __maybe_unused,
-	     size_t csize __maybe_unused)
-{
-	int fd;
-	size_t sz = sizeof(note->build_id);
-	ssize_t sret;
-
-	fd = open("/dev/urandom", O_RDONLY);
-	if (fd == -1)
-		err(1, "cannot access /dev/urandom for buildid");
-
-	sret = read(fd, note->build_id, sz);
-
-	close(fd);
-
-	if (sret != (ssize_t)sz)
-		memset(note->build_id, 0, sz);
-}
-#endif
-
-#ifdef BUILD_ID_SHA
-static void
-gen_build_id(struct buildid_note *note,
-	     unsigned long load_addr __maybe_unused,
-	     const void *code,
-	     size_t csize)
-{
-	if (sizeof(note->build_id) < SHA_DIGEST_LENGTH)
-		errx(1, "build_id too small for SHA1");
-
-	SHA1(code, csize, (unsigned char *)note->build_id);
-}
-#endif
-
-#ifdef BUILD_ID_MD5
-static void
-gen_build_id(struct buildid_note *note, unsigned long load_addr, const void *code, size_t csize)
-{
-	EVP_MD_CTX *mdctx;
-
-	if (sizeof(note->build_id) < 16)
-		errx(1, "build_id too small for MD5");
-
-	mdctx = EVP_MD_CTX_new();
-	if (!mdctx)
-		errx(2, "failed to create EVP_MD_CTX");
-
-	EVP_DigestInit_ex(mdctx, EVP_md5(), NULL);
-	EVP_DigestUpdate(mdctx, &load_addr, sizeof(load_addr));
-	EVP_DigestUpdate(mdctx, code, csize);
-	EVP_DigestFinal_ex(mdctx, (unsigned char *)note->build_id, NULL);
-	EVP_MD_CTX_free(mdctx);
-}
-#endif
-
 static int
 jit_add_eh_frame_info(Elf *e, void* unwinding, uint64_t unwinding_header_size,
 		      uint64_t unwinding_size, uint64_t base_offset)
@@ -473,7 +394,7 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym,
 	/*
 	 * build-id generation
 	 */
-	gen_build_id(&bnote, load_addr, code, csize);
+	sha1(code, csize, bnote.build_id);
 	bnote.desc.namesz = sizeof(bnote.name); /* must include 0 termination */
 	bnote.desc.descsz = sizeof(bnote.build_id);
 	bnote.desc.type   = NT_GNU_BUILD_ID;

From 8e63fd1e00f59eab01ab43eb094abc380f8d0c28 Mon Sep 17 00:00:00 2001
From: Yuzhuo Jing <yuzhuo@google.com>
Date: Wed, 25 Jun 2025 13:23:11 -0700
Subject: [PATCH 060/179] tools: Remove libcrypto dependency

Remove all occurrence of libcrypto in the build system.

Signed-off-by: Yuzhuo Jing <yuzhuo@google.com>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625202311.23244-5-ebiggers@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/build/Makefile.feature            |  2 --
 tools/build/feature/Makefile            |  4 ----
 tools/build/feature/test-all.c          |  5 -----
 tools/build/feature/test-libcrypto.c    | 25 -------------------------
 tools/perf/Documentation/perf-check.txt |  1 -
 tools/perf/Makefile.config              | 13 -------------
 tools/perf/Makefile.perf                |  3 ---
 tools/perf/builtin-check.c              |  1 -
 tools/perf/tests/make                   |  4 +---
 9 files changed, 1 insertion(+), 57 deletions(-)
 delete mode 100644 tools/build/feature/test-libcrypto.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 2e5f4c8b6547..649c5ab8e8f2 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -86,7 +86,6 @@ FEATURE_TESTS_BASIC :=                  \
         libtraceevent                   \
         libtracefs                      \
         libcpupower                     \
-        libcrypto                       \
         pthread-attr-setaffinity-np     \
         pthread-barrier     		\
         reallocarray                    \
@@ -147,7 +146,6 @@ FEATURE_DISPLAY ?=              \
          numa_num_possible_cpus \
          libperl                \
          libpython              \
-         libcrypto              \
          libcapstone            \
          llvm-perf              \
          zlib                   \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 0c4e541ed56e..b41a42818d8a 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -38,7 +38,6 @@ FILES=                                          \
          test-libtraceevent.bin                 \
          test-libcpupower.bin                   \
          test-libtracefs.bin                    \
-         test-libcrypto.bin                     \
          test-libunwind.bin                     \
          test-libunwind-debug-frame.bin         \
          test-libunwind-x86.bin                 \
@@ -247,9 +246,6 @@ $(OUTPUT)test-libcpupower.bin:
 $(OUTPUT)test-libtracefs.bin:
 	 $(BUILD) $(shell $(PKG_CONFIG) --cflags libtracefs 2>/dev/null) -ltracefs
 
-$(OUTPUT)test-libcrypto.bin:
-	$(BUILD) -lcrypto
-
 $(OUTPUT)test-gtk2.bin:
 	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) -Wno-deprecated-declarations
 
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 1010f233d9c1..4419fb4710bd 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -130,10 +130,6 @@
 # include "test-bpf.c"
 #undef main
 
-#define main main_test_libcrypto
-# include "test-libcrypto.c"
-#undef main
-
 #define main main_test_sdt
 # include "test-sdt.c"
 #undef main
@@ -188,7 +184,6 @@ int main(int argc, char *argv[])
 	main_test_lzma();
 	main_test_get_cpuid();
 	main_test_bpf();
-	main_test_libcrypto();
 	main_test_scandirat();
 	main_test_sched_getcpu();
 	main_test_sdt();
diff --git a/tools/build/feature/test-libcrypto.c b/tools/build/feature/test-libcrypto.c
deleted file mode 100644
index bc34a5bbb504..000000000000
--- a/tools/build/feature/test-libcrypto.c
+++ /dev/null
@@ -1,25 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <openssl/evp.h>
-#include <openssl/sha.h>
-#include <openssl/md5.h>
-
-int main(void)
-{
-	EVP_MD_CTX *mdctx;
-	unsigned char md[MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH];
-	unsigned char dat[] = "12345";
-	unsigned int digest_len;
-
-	mdctx = EVP_MD_CTX_new();
-	if (!mdctx)
-		return 0;
-
-	EVP_DigestInit_ex(mdctx, EVP_md5(), NULL);
-	EVP_DigestUpdate(mdctx, &dat[0], sizeof(dat));
-	EVP_DigestFinal_ex(mdctx, &md[0], &digest_len);
-	EVP_MD_CTX_free(mdctx);
-
-	SHA1(&dat[0], sizeof(dat), &md[0]);
-
-	return 0;
-}
diff --git a/tools/perf/Documentation/perf-check.txt b/tools/perf/Documentation/perf-check.txt
index 799982d8d868..ee92042082f7 100644
--- a/tools/perf/Documentation/perf-check.txt
+++ b/tools/perf/Documentation/perf-check.txt
@@ -54,7 +54,6 @@ feature::
                 libbfd                  /  HAVE_LIBBFD_SUPPORT
                 libbpf-strings          /  HAVE_LIBBPF_STRINGS_SUPPORT
                 libcapstone             /  HAVE_LIBCAPSTONE_SUPPORT
-                libcrypto               /  HAVE_LIBCRYPTO_SUPPORT
                 libdw-dwarf-unwind      /  HAVE_LIBDW_SUPPORT
                 libelf                  /  HAVE_LIBELF_SUPPORT
                 libnuma                 /  HAVE_LIBNUMA_SUPPORT
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 70a3e771c7c0..5a5832ee7b53 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -134,8 +134,6 @@ ifndef NO_LIBUNWIND
   FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
 endif
 
-FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
-
 ifdef CSINCLUDES
   LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
 endif
@@ -784,17 +782,6 @@ ifneq ($(NO_LIBTRACEEVENT),1)
   $(call detected,CONFIG_TRACE)
 endif
 
-ifndef NO_LIBCRYPTO
-  ifneq ($(feature-libcrypto), 1)
-    $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
-    NO_LIBCRYPTO := 1
-  else
-    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
-    EXTLIBS += -lcrypto
-    $(call detected,CONFIG_CRYPTO)
-  endif
-endif
-
 ifndef NO_SLANG
   ifneq ($(feature-libslang), 1)
     ifneq ($(feature-libslang-include-subdir), 1)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 4f292edeca5a..62697d62f706 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -61,9 +61,6 @@ include ../scripts/utilities.mak
 #
 # Define NO_LIBBIONIC if you do not want bionic support
 #
-# Define NO_LIBCRYPTO if you do not want libcrypto (openssl) support
-# used for generating build-ids for ELFs generated by jitdump.
-#
 # Define NO_LIBDW_DWARF_UNWIND if you do not want libdw support
 # for dwarf backtrace post unwind.
 #
diff --git a/tools/perf/builtin-check.c b/tools/perf/builtin-check.c
index f4827f0ddb47..b1e205871ab1 100644
--- a/tools/perf/builtin-check.c
+++ b/tools/perf/builtin-check.c
@@ -45,7 +45,6 @@ struct feature_status supported_features[] = {
 	FEATURE_STATUS_TIP("libbfd", HAVE_LIBBFD_SUPPORT, "Deprecated, license incompatibility, use BUILD_NONDISTRO=1 and install binutils-dev[el]"),
 	FEATURE_STATUS("libbpf-strings", HAVE_LIBBPF_STRINGS_SUPPORT),
 	FEATURE_STATUS("libcapstone", HAVE_LIBCAPSTONE_SUPPORT),
-	FEATURE_STATUS("libcrypto", HAVE_LIBCRYPTO_SUPPORT),
 	FEATURE_STATUS("libdw-dwarf-unwind", HAVE_LIBDW_SUPPORT),
 	FEATURE_STATUS("libelf", HAVE_LIBELF_SUPPORT),
 	FEATURE_STATUS("libnuma", HAVE_LIBNUMA_SUPPORT),
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 0ee94caf9ec1..e3651e5b195a 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -91,7 +91,6 @@ make_no_auxtrace    := NO_AUXTRACE=1
 make_no_libbpf	    := NO_LIBBPF=1
 make_libbpf_dynamic := LIBBPF_DYNAMIC=1
 make_no_libbpf_DEBUG := NO_LIBBPF=1 DEBUG=1
-make_no_libcrypto   := NO_LIBCRYPTO=1
 make_no_libllvm     := NO_LIBLLVM=1
 make_with_babeltrace:= LIBBABELTRACE=1
 make_with_coresight := CORESIGHT=1
@@ -122,7 +121,7 @@ make_minimal        := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_GTK2=1
 make_minimal        += NO_DEMANGLE=1 NO_LIBELF=1 NO_BACKTRACE=1
 make_minimal        += NO_LIBNUMA=1 NO_LIBBIONIC=1
 make_minimal        += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1
-make_minimal        += NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
+make_minimal        += NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
 make_minimal        += NO_LIBCAP=1 NO_CAPSTONE=1
 
 # $(run) contains all available tests
@@ -160,7 +159,6 @@ run += make_no_libbionic
 run += make_no_auxtrace
 run += make_no_libbpf
 run += make_no_libbpf_DEBUG
-run += make_no_libcrypto
 run += make_no_libllvm
 run += make_no_sdt
 run += make_no_syscall_tbl

From e201757f7a0a901e313d638c545ed6cd0dc6870e Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 25 Jun 2025 16:03:39 -0700
Subject: [PATCH 061/179] perf annotate: Fix source code annotate with objdump

Recently it uses llvm and capstone to speed up annotation or disassembly
of instructions.  But they don't support source code view yet.  Until it
fixed, we can force to use objdump for source code annotation.

To prevent performance loss, it's disabled by default and turned it on
when user requests it in TUI by pressing 's' key.

Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250625230339.702610-1-namhyung@kernel.org
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/ui/browsers/annotate.c | 86 +++++++++++++++++++++++++++++--
 tools/perf/util/annotate.c        |  2 +
 tools/perf/util/annotate.h        |  1 +
 tools/perf/util/disasm.c          |  7 +++
 4 files changed, 93 insertions(+), 3 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index ab776b1ed2d5..183902dac042 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -345,6 +345,23 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
 	browser->curr_hot = rb_last(&browser->entries);
 }
 
+static struct annotation_line *annotate_browser__find_new_asm_line(
+					struct annotate_browser *browser,
+					int idx_asm)
+{
+	struct annotation_line *al;
+	struct list_head *head = browser->b.entries;
+
+	/* find an annotation line in the new list with the same idx_asm */
+	list_for_each_entry(al, head, node) {
+		if (al->idx_asm == idx_asm)
+			return al;
+	}
+
+	/* There are no asm lines */
+	return NULL;
+}
+
 static struct annotation_line *annotate_browser__find_next_asm_line(
 					struct annotate_browser *browser,
 					struct annotation_line *al)
@@ -368,7 +385,31 @@ static struct annotation_line *annotate_browser__find_next_asm_line(
 	return NULL;
 }
 
-static bool annotate_browser__toggle_source(struct annotate_browser *browser)
+static bool annotation__has_source(struct annotation *notes)
+{
+	struct annotation_line *al;
+	bool found_asm = false;
+
+	/* Let's skip the first non-asm lines which present regardless of source. */
+	list_for_each_entry(al, &notes->src->source, node) {
+		if (al->offset >= 0) {
+			found_asm = true;
+			break;
+		}
+	}
+
+	if (found_asm) {
+		/* After assembly lines, any line without offset means source. */
+		list_for_each_entry_continue(al, &notes->src->source, node) {
+			if (al->offset == -1)
+				return true;
+		}
+	}
+	return false;
+}
+
+static bool annotate_browser__toggle_source(struct annotate_browser *browser,
+					    struct evsel *evsel)
 {
 	struct annotation *notes = browser__annotation(&browser->b);
 	struct annotation_line *al;
@@ -377,6 +418,39 @@ static bool annotate_browser__toggle_source(struct annotate_browser *browser)
 	browser->b.seek(&browser->b, offset, SEEK_CUR);
 	al = list_entry(browser->b.top, struct annotation_line, node);
 
+	if (!annotate_opts.annotate_src)
+		annotate_opts.annotate_src = true;
+
+	/*
+	 * It's about to get source code annotation for the first time.
+	 * Drop the existing annotation_lines and get the new one with source.
+	 * And then move to the original line at the same asm index.
+	 */
+	if (annotate_opts.hide_src_code && !notes->src->tried_source) {
+		struct map_symbol *ms = browser->b.priv;
+		int orig_idx_asm = al->idx_asm;
+
+		/* annotate again with source code info */
+		annotate_opts.hide_src_code = false;
+		annotated_source__purge(notes->src);
+		symbol__annotate2(ms, evsel, &browser->arch);
+		annotate_opts.hide_src_code = true;
+
+		/* should be after annotated_source__purge() */
+		notes->src->tried_source = true;
+
+		if (!annotation__has_source(notes))
+			ui__warning("Annotation has no source code.");
+
+		browser->b.entries = &notes->src->source;
+		al = annotate_browser__find_new_asm_line(browser, orig_idx_asm);
+		if (unlikely(al == NULL)) {
+			al = list_first_entry(&notes->src->source,
+					      struct annotation_line, node);
+		}
+		browser->b.seek(&browser->b, al->idx_asm, SEEK_SET);
+	}
+
 	if (annotate_opts.hide_src_code) {
 		if (al->idx_asm < offset)
 			offset = al->idx;
@@ -833,7 +907,7 @@ static int annotate_browser__run(struct annotate_browser *browser,
 			nd = browser->curr_hot;
 			break;
 		case 's':
-			if (annotate_browser__toggle_source(browser))
+			if (annotate_browser__toggle_source(browser, evsel))
 				ui_helpline__puts(help);
 			annotate__scnprintf_title(hists, title, sizeof(title));
 			annotate_browser__show(&browser->b, title, help);
@@ -1011,6 +1085,12 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 			ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
 			return -1;
 		}
+
+		if (!annotate_opts.hide_src_code) {
+			notes->src->tried_source = true;
+			if (!annotation__has_source(notes))
+				ui__warning("Annotation has no source code.");
+		}
 	}
 
 	ui_helpline__push("Press ESC to exit");
@@ -1025,7 +1105,7 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 
 	ret = annotate_browser__run(&browser, evsel, hbt);
 
-	if(not_annotated)
+	if (not_annotated && !notes->src->tried_source)
 		annotated_source__purge(notes->src);
 
 	return ret;
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 264a212b47df..0dd475a744b6 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1451,6 +1451,7 @@ void annotated_source__purge(struct annotated_source *as)
 		list_del_init(&al->node);
 		disasm_line__free(disasm_line(al));
 	}
+	as->tried_source = false;
 }
 
 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
@@ -2280,6 +2281,7 @@ void annotation_options__init(void)
 	opt->annotate_src = true;
 	opt->offset_level = ANNOTATION__OFFSET_JUMP_TARGETS;
 	opt->percent_type = PERCENT_PERIOD_LOCAL;
+	opt->hide_src_code = true;
 	opt->hide_src_code_on_title = true;
 }
 
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index bbb89b32f398..8b5131d257b0 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -294,6 +294,7 @@ struct annotated_source {
 	int			nr_entries;
 	int			nr_asm_entries;
 	int			max_jump_sources;
+	bool			tried_source;
 	u64			start;
 	struct {
 		u8		addr;
diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
index 8f0eb56c6fc6..ff475a239f4b 100644
--- a/tools/perf/util/disasm.c
+++ b/tools/perf/util/disasm.c
@@ -2284,6 +2284,13 @@ int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
 		}
 	}
 
+	/* FIXME: LLVM and CAPSTONE should support source code */
+	if (options->annotate_src && !options->hide_src_code) {
+		err = symbol__disassemble_objdump(symfs_filename, sym, args);
+		if (err == 0)
+			goto out_remove_tmp;
+	}
+
 	err = -1;
 	for (u8 i = 0; i < ARRAY_SIZE(options->disassemblers) && err != 0; i++) {
 		enum perf_disassembler dis = options->disassemblers[i];

From 9d8511daf1e81a93007b7bb5020d4ce5ce001deb Mon Sep 17 00:00:00 2001
From: Tianyou Li <tianyou.li@intel.com>
Date: Thu, 26 Jun 2025 00:14:01 +0800
Subject: [PATCH 062/179] tools/perf: Add --exclude-buildids option to perf
 archive command

When make a perf archive, it may contains the binaries that user did not want to ship with,
add --exclude-buildids option to specify a file which contains the buildids need to be
excluded. The file can be generated from command:

    perf buildid-list -i perf.data --with-hits | grep -v "^ " > exclude-buildids.txt

Then remove the lines from the exclude-buildids.txt for buildids should be included.

Signed-off-by: Tianyou Li <tianyou.li@intel.com>
Reviewed-by: Wangyang Guo <wangyang.guo@intel.com>
Link: https://lore.kernel.org/r/20250625161509.2599646-1-tianyou.li@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/perf-archive.sh | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/tools/perf/perf-archive.sh b/tools/perf/perf-archive.sh
index 6ed7e52ab881..7977e9b0a5ea 100755
--- a/tools/perf/perf-archive.sh
+++ b/tools/perf/perf-archive.sh
@@ -16,6 +16,13 @@ while [ $# -gt 0 ] ; do
 	elif [ $1 == "--unpack" ]; then
 		UNPACK=1
 		shift
+	elif [ $1 == "--exclude-buildids" ]; then
+		EXCLUDE_BUILDIDS="$2"
+		if [ ! -e "$EXCLUDE_BUILDIDS" ]; then
+			echo "Provided exclude-buildids file $EXCLUDE_BUILDIDS does not exist"
+			exit 1
+		fi
+		shift 2
 	else
 		PERF_DATA=$1
 		UNPACK_TAR=$1
@@ -86,11 +93,29 @@ fi
 
 BUILDIDS=$(mktemp /tmp/perf-archive-buildids.XXXXXX)
 
-perf buildid-list -i $PERF_DATA --with-hits | grep -v "^ " > $BUILDIDS
-if [ ! -s $BUILDIDS ] ; then
-	echo "perf archive: no build-ids found"
-	rm $BUILDIDS || true
-	exit 1
+#
+# EXCLUDE_BUILDIDS is an optional file that contains build-ids to be excluded from the
+# archive. It is a list of build-ids, one per line, without any leading or trailing spaces.
+# If the file is empty, all build-ids will be included in the archive. To create a exclude-
+# buildids file, you can use the following command:
+# 	perf buildid-list -i perf.data --with-hits | grep -v "^ " > exclude_buildids.txt
+# You can edit the file to remove the lines that you want to keep in the archive, then:
+# 	perf archive --exclude-buildids exclude_buildids.txt
+#
+if [ -s "$EXCLUDE_BUILDIDS" ]; then
+	perf buildid-list -i $PERF_DATA --with-hits | grep -v "^ " | grep -Fv -f $EXCLUDE_BUILDIDS > $BUILDIDS
+	if [ ! -s "$BUILDIDS" ] ; then
+		echo "perf archive: no build-ids found after applying exclude-buildids file"
+		rm $BUILDIDS || true
+		exit 1
+	fi
+else
+	perf buildid-list -i $PERF_DATA --with-hits | grep -v "^ " > $BUILDIDS
+	if [ ! -s "$BUILDIDS" ] ; then
+		echo "perf archive: no build-ids found"
+		rm $BUILDIDS || true
+		exit 1
+	fi
 fi
 
 MANIFEST=$(mktemp /tmp/perf-archive-manifest.XXXXXX)

From ef0f7c235e5c2195ff61a2c9a5b9efb2375ce433 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Fri, 27 Jun 2025 09:38:56 -0700
Subject: [PATCH 063/179] perf build: Fix a build error on REFCNT_CHECKING=1
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Recently it added -fno-strict-aliasing to sync with the kernel behavior.
But it caused an error due to potential uninitialized access like below:

  In file included from util/symbol.c:27:
  In function ‘dso__set_symbol_names_len’,
      inlined from ‘dso__sort_by_name’ at util/symbol.c:638:4:
  util/dso.h:654:46: error: ‘len’ may be used uninitialized [-Werror=maybe-uninitialized]
    654 |         RC_CHK_ACCESS(dso)->symbol_names_len = len;
        |                                              ^
  util/symbol.c: In function ‘dso__sort_by_name’:
  util/symbol.c:634:24: note: ‘len’ was declared here
    634 |                 size_t len;
        |                        ^~~

Let's just initialize it with 0.

Fixes: 55a18d2f3ff79c90 ("perf build: enable -fno-strict-aliasing")
Closes: https://lore.kernel.org/r/aF7JC8zkG5-_-nY_@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/symbol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 8b30c6f16a9e..73dab94fab74 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -631,7 +631,7 @@ void dso__sort_by_name(struct dso *dso)
 {
 	mutex_lock(dso__lock(dso));
 	if (!dso__sorted_by_name(dso)) {
-		size_t len;
+		size_t len = 0;
 
 		dso__set_symbol_names(dso, symbols__sort_by_name(dso__symbols(dso), &len));
 		if (dso__symbol_names(dso)) {

From aa497357c125662d7526d6ec8ce1259e72b2c8af Mon Sep 17 00:00:00 2001
From: Chun-Tse Shao <ctshao@google.com>
Date: Fri, 27 Jun 2025 13:16:41 -0700
Subject: [PATCH 064/179] perf stat: Fix uncore aggregation number

Follow up:
lore.kernel.org/CAP-5=fVDF4-qYL1Lm7efgiHk7X=_nw_nEFMBZFMcsnOOJgX4Kg@mail.gmail.com/

The patch adds unit aggregation during evsel merge the aggregated uncore
counters. Change the name of the column to `ctrs` and `counters` for
json mode.

Tested on a 2-socket machine with SNC3, uncore_imc_[0-11] and
cpumask="0,120"
Before:
  perf stat -e clockticks -I 1000 --per-socket
  #           time socket cpus             counts unit events
       1.001085024 S0        1         9615386315      clockticks
       1.001085024 S1        1         9614287448      clockticks
  perf stat -e clockticks -I 1000 --per-node
  #           time node   cpus             counts unit events
       1.001029867 N0        1         3205726984      clockticks
       1.001029867 N1        1         3205444421      clockticks
       1.001029867 N2        1         3205234018      clockticks
       1.001029867 N3        1         3205224660      clockticks
       1.001029867 N4        1         3205207213      clockticks
       1.001029867 N5        1         3205528246      clockticks
After:
  perf stat -e clockticks -I 1000 --per-socket
  #           time socket ctrs             counts unit events
       1.001026071 S0       12         9619677996      clockticks
       1.001026071 S1       12         9618612614      clockticks
  perf stat -e clockticks -I 1000 --per-node
  #           time node   ctrs             counts unit events
       1.001027449 N0        4         3207251859      clockticks
       1.001027449 N1        4         3207315930      clockticks
       1.001027449 N2        4         3206981828      clockticks
       1.001027449 N3        4         3206566126      clockticks
       1.001027449 N4        4         3206032609      clockticks
       1.001027449 N5        4         3205651355      clockticks

Tested with JSON output linter:
  perf test "perf stat JSON output linter"
   94: perf stat JSON output linter                                    : Ok

Suggested-by: Ian Rogers <irogers@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Chun-Tse Shao <ctshao@google.com>
Link: https://lore.kernel.org/r/20250627201818.479421-1-ctshao@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-stat.txt        |  6 ++--
 .../tests/shell/lib/perf_json_output_lint.py  |  4 +--
 tools/perf/util/stat-display.c                | 34 +++++++++----------
 tools/perf/util/stat.c                        |  2 +-
 4 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 61d091670dee..1a766d4a2233 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -640,18 +640,20 @@ JSON FORMAT
 With -j, perf stat is able to print out a JSON format output
 that can be used for parsing.
 
-- timestamp : optional usec time stamp in fractions of second (with -I)
+- interval : optional timestamp in fractions of second (with -I)
 - optional aggregate options:
 		- core : core identifier (with --per-core)
 		- die : die identifier (with --per-die)
 		- socket : socket identifier (with --per-socket)
 		- node : node identifier (with --per-node)
 		- thread : thread identifier (with --per-thread)
+- counters : number of aggregated PMU counters
 - counter-value : counter value
 - unit : unit of the counter value or empty
 - event : event name
 - variance : optional variance if multiple values are collected (with -r)
-- runtime : run time of counter
+- event-runtime : run time of the event
+- pcnt-running : percentage of time the event was running
 - metric-value : optional metric value
 - metric-unit : optional unit of metric
 
diff --git a/tools/perf/tests/shell/lib/perf_json_output_lint.py b/tools/perf/tests/shell/lib/perf_json_output_lint.py
index 9e772a89ce38..c6750ef06c0f 100644
--- a/tools/perf/tests/shell/lib/perf_json_output_lint.py
+++ b/tools/perf/tests/shell/lib/perf_json_output_lint.py
@@ -45,7 +45,7 @@ def is_counter_value(num):
 
 def check_json_output(expected_items):
   checks = {
-      'aggregate-number': lambda x: isfloat(x),
+      'counters': lambda x: isfloat(x),
       'core': lambda x: True,
       'counter-value': lambda x: is_counter_value(x),
       'cgroup': lambda x: True,
@@ -75,7 +75,7 @@ def check_json_output(expected_items):
       if count not in expected_items and count >= 1 and count <= 7 and 'metric-value' in item:
         # Events that generate >1 metric may have isolated metric
         # values and possibly other prefixes like interval, core,
-        # aggregate-number, or event-runtime/pcnt-running from multiplexing.
+        # counters, or event-runtime/pcnt-running from multiplexing.
         pass
       elif count not in expected_items and count >= 1 and count <= 5 and 'metricgroup' in item:
         pass
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 729ad5cd52cb..9cb5245a92aa 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -50,15 +50,15 @@ static int aggr_header_lens[] = {
 };
 
 static const char *aggr_header_csv[] = {
-	[AGGR_CORE] 	= 	"core,cpus,",
-	[AGGR_CACHE]	= 	"cache,cpus,",
-	[AGGR_CLUSTER]	= 	"cluster,cpus,",
-	[AGGR_DIE] 	= 	"die,cpus,",
-	[AGGR_SOCKET] 	= 	"socket,cpus,",
-	[AGGR_NONE] 	= 	"cpu,",
-	[AGGR_THREAD] 	= 	"comm-pid,",
-	[AGGR_NODE] 	= 	"node,",
-	[AGGR_GLOBAL] 	=	""
+	[AGGR_CORE]	=	"core,ctrs,",
+	[AGGR_CACHE]	=	"cache,ctrs,",
+	[AGGR_CLUSTER]	=	"cluster,ctrs,",
+	[AGGR_DIE]	=	"die,ctrs,",
+	[AGGR_SOCKET]	=	"socket,ctrs,",
+	[AGGR_NONE]	=	"cpu,",
+	[AGGR_THREAD]	=	"comm-pid,",
+	[AGGR_NODE]	=	"node,",
+	[AGGR_GLOBAL]	=	""
 };
 
 static const char *aggr_header_std[] = {
@@ -304,7 +304,7 @@ static void print_aggr_id_std(struct perf_stat_config *config,
 		return;
 	}
 
-	fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, 4, aggr_nr);
+	fprintf(output, "%-*s %*d ", aggr_header_lens[idx], buf, /*strlen("ctrs")*/ 4, aggr_nr);
 }
 
 static void print_aggr_id_csv(struct perf_stat_config *config,
@@ -366,27 +366,27 @@ static void print_aggr_id_json(struct perf_stat_config *config, struct outstate
 {
 	switch (config->aggr_mode) {
 	case AGGR_CORE:
-		json_out(os, "\"core\" : \"S%d-D%d-C%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"core\" : \"S%d-D%d-C%d\", \"counters\" : %d",
 			id.socket, id.die, id.core, aggr_nr);
 		break;
 	case AGGR_CACHE:
-		json_out(os, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"cache\" : \"S%d-D%d-L%d-ID%d\", \"counters\" : %d",
 			id.socket, id.die, id.cache_lvl, id.cache, aggr_nr);
 		break;
 	case AGGR_CLUSTER:
-		json_out(os, "\"cluster\" : \"S%d-D%d-CLS%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"cluster\" : \"S%d-D%d-CLS%d\", \"counters\" : %d",
 			id.socket, id.die, id.cluster, aggr_nr);
 		break;
 	case AGGR_DIE:
-		json_out(os, "\"die\" : \"S%d-D%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"die\" : \"S%d-D%d\", \"counters\" : %d",
 			id.socket, id.die, aggr_nr);
 		break;
 	case AGGR_SOCKET:
-		json_out(os, "\"socket\" : \"S%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"socket\" : \"S%d\", \"counters\" : %d",
 			id.socket, aggr_nr);
 		break;
 	case AGGR_NODE:
-		json_out(os, "\"node\" : \"N%d\", \"aggregate-number\" : %d",
+		json_out(os, "\"node\" : \"N%d\", \"counters\" : %d",
 			id.node, aggr_nr);
 		break;
 	case AGGR_NONE:
@@ -1317,7 +1317,7 @@ static void print_header_interval_std(struct perf_stat_config *config,
 	case AGGR_CLUSTER:
 	case AGGR_CACHE:
 	case AGGR_CORE:
-		fprintf(output, "#%*s %-*s cpus",
+		fprintf(output, "#%*s %-*s ctrs",
 			INTERVAL_LEN - 1, "time",
 			aggr_header_lens[config->aggr_mode],
 			aggr_header_std[config->aggr_mode]);
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 355a7d5c8ab8..b0205e99a4c9 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -526,7 +526,7 @@ static int evsel__merge_aggr_counters(struct evsel *evsel, struct evsel *alias)
 		struct perf_counts_values *aggr_counts_a = &ps_a->aggr[i].counts;
 		struct perf_counts_values *aggr_counts_b = &ps_b->aggr[i].counts;
 
-		/* NB: don't increase aggr.nr for aliases */
+		ps_a->aggr[i].nr += ps_b->aggr[i].nr;
 
 		aggr_counts_a->val += aggr_counts_b->val;
 		aggr_counts_a->ena += aggr_counts_b->ena;

From 844f962ca6bf5b01d0af0bc62a7f06135581fe92 Mon Sep 17 00:00:00 2001
From: Thomas Richter <tmricht@linux.ibm.com>
Date: Mon, 30 Jun 2025 11:16:13 +0200
Subject: [PATCH 065/179] perf test: perf header test fails on s390

commit 2d584688643fa ("perf test: Add header shell test")
introduced a new test case for perf header. It fails on s390
because call graph option -g is not supported on s390.
Also the option --call-graph dwarf is only supported for
the event cpu-clock.

Remove this option and the test succeeds.

Output after:
 # ./perf test 76
 76: perf header tests                           : Ok

Fixes: 2d584688643fa ("perf test: Add header shell test")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Link: https://lore.kernel.org/r/20250630091613.3061664-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/header.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/header.sh b/tools/perf/tests/shell/header.sh
index 813831cff0bd..412263de6ed7 100755
--- a/tools/perf/tests/shell/header.sh
+++ b/tools/perf/tests/shell/header.sh
@@ -51,7 +51,7 @@ check_header_output() {
 test_file() {
   echo "Test perf header file"
 
-  perf record -o "${perfdata}" -g -- perf test -w noploop
+  perf record -o "${perfdata}" -- perf test -w noploop
   perf report --header-only -I -i "${perfdata}" > "${script_output}"
   check_header_output
 
@@ -61,7 +61,7 @@ test_file() {
 test_pipe() {
   echo "Test perf header pipe"
 
-  perf record -o - -g -- perf test -w noploop | perf report --header-only -I -i - > "${script_output}"
+  perf record -o - -- perf test -w noploop | perf report --header-only -I -i - > "${script_output}"
   check_header_output
 
   echo "Test perf header pipe [Done]"

From bb986e4720009da4221aeeeed7dec3f56d96502c Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@gmail.com>
Date: Mon, 30 Jun 2025 13:51:28 +0100
Subject: [PATCH 066/179] perf drm_pmu: Fix spelling mistake "bufers" ->
 "buffers"

There are spelling mistakes in some literal strings. Fix these.

Fixes: 28917cb17f9d ("perf drm_pmu: Add a tool like PMU to expose DRM information")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250630125128.562895-1-colin.i.king@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/drm_pmu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/drm_pmu.c b/tools/perf/util/drm_pmu.c
index 17385a10005b..988890f37ba7 100644
--- a/tools/perf/util/drm_pmu.c
+++ b/tools/perf/util/drm_pmu.c
@@ -210,17 +210,17 @@ static int read_drm_pmus_cb(void *args, int fdinfo_dir_fd, const char *fd_name)
 		}
 		if (starts_with(line, "drm-purgeable-")) {
 			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
-				  "Size of resident and purgeable memory bufers");
+				  "Size of resident and purgeable memory buffers");
 			continue;
 		}
 		if (starts_with(line, "drm-resident-")) {
 			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
-				  "Size of resident memory bufers");
+				  "Size of resident memory buffers");
 			continue;
 		}
 		if (starts_with(line, "drm-shared-")) {
 			add_event(&events, &num_events, line, DRM_PMU_UNIT_BYTES,
-				  "Size of shared memory bufers");
+				  "Size of shared memory buffers");
 			continue;
 		}
 		if (starts_with(line, "drm-total-cycles-")) {

From 5ceedc09f27f87a6adc00d522b06dcce990a1986 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 27 Jun 2025 18:55:53 -0700
Subject: [PATCH 067/179] perf test: Add basic callgraph test to record testing

Give some basic perf record callgraph coverage.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20250628015553.1270748-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/record.sh | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 2022a4f739be..b1ad24fb3b33 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -12,8 +12,10 @@ shelldir=$(dirname "$0")
 . "${shelldir}"/lib/perf_has_symbol.sh
 
 testsym="test_loop"
+testsym2="brstack"
 
 skip_test_missing_symbol ${testsym}
+skip_test_missing_symbol ${testsym2}
 
 err=0
 perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
@@ -359,6 +361,33 @@ test_precise_max() {
   fi
 }
 
+test_callgraph() {
+  echo "Callgraph test"
+
+  case $(uname -m)
+  in s390x)
+       cmd_flags="--call-graph dwarf -e cpu-clock";;
+     *)
+       cmd_flags="-g";;
+  esac
+
+  if ! perf record -o "${perfdata}" $cmd_flags perf test -w brstack
+  then
+    echo "Callgraph test [Failed missing output]"
+    err=1
+    return
+  fi
+
+  if ! perf report -i "${perfdata}" 2>&1 | grep "${testsym2}"
+  then
+    echo "Callgraph test [Failed missing symbol]"
+    err=1
+    return
+  fi
+
+  echo "Callgraph test [Success]"
+}
+
 # raise the limit of file descriptors to minimum
 if [[ $default_fd_limit -lt $min_fd_limit ]]; then
        ulimit -Sn $min_fd_limit
@@ -374,6 +403,7 @@ test_uid
 test_leader_sampling
 test_topdown_leader_sampling
 test_precise_max
+test_callgraph
 
 # restore the default value
 ulimit -Sn $default_fd_limit

From 146847932278fef1ce13b5a839077e51ca019395 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 27 Jun 2025 18:58:32 -0700
Subject: [PATCH 068/179] perf test annotate: Use --percent-limit rather than
 head to reduce output

The annotate test was sped up by Thomas Richter
<tmricht@linux.ibm.com> in commit
658a8805cb60 ("perf test: Speed up test case 70 annotate basic tests")
by reducing the annotate output using head. This causes flakes on
hybrid machines where the first event dumped may not have the samples
for the test within it. Rather than reduce the output using `head`
switch to `--percent-limit 10` which will stop annotate dumping
functions that have an overhead of less than 10%, the noploop program
should be using more.

Add the missing objdump option for the pipe mode version of the
objdump with a command test.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20250628015832.1271229-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/annotate.sh | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/tools/perf/tests/shell/annotate.sh b/tools/perf/tests/shell/annotate.sh
index 16a1ccd06089..689de58e9238 100755
--- a/tools/perf/tests/shell/annotate.sh
+++ b/tools/perf/tests/shell/annotate.sh
@@ -53,21 +53,22 @@ test_basic() {
   # Generate the annotated output file
   if [ "x${mode}" == "xBasic" ]
   then
-    perf annotate --no-demangle -i "${perfdata}" --stdio 2> /dev/null > "${perfout}"
+    perf annotate --no-demangle -i "${perfdata}" --stdio --percent-limit 10 2> /dev/null > "${perfout}"
   else
-    perf annotate --no-demangle -i - --stdio 2> /dev/null < "${perfdata}" > "${perfout}"
+    perf annotate --no-demangle -i - --stdio 2> /dev/null --percent-limit 10 < "${perfdata}" > "${perfout}"
   fi
 
   # check if it has the target symbol
-  if ! head -250 "${perfout}" | grep -q "${testsym}"
+  if ! grep -q "${testsym}" "${perfout}"
   then
     echo "${mode} annotate [Failed: missing target symbol]"
+    cat "${perfout}"
     err=1
     return
   fi
 
   # check if it has the disassembly lines
-  if ! head -250 "${perfout}" | grep -q "${disasm_regex}"
+  if ! grep -q "${disasm_regex}" "${perfout}"
   then
     echo "${mode} annotate [Failed: missing disasm output from default disassembler]"
     err=1
@@ -92,11 +93,11 @@ test_basic() {
   # check one more with external objdump tool (forced by --objdump option)
   if [ "x${mode}" == "xBasic" ]
   then
-    perf annotate --no-demangle -i "${perfdata}" --objdump=objdump 2> /dev/null > "${perfout}"
+    perf annotate --no-demangle -i "${perfdata}" --percent-limit 10 --objdump=objdump 2> /dev/null > "${perfout}"
   else
-    perf annotate --no-demangle -i - "${testsym}" 2> /dev/null < "${perfdata}" > "${perfout}"
+    perf annotate --no-demangle -i - "${testsym}" --percent-limit 10 --objdump=objdump 2> /dev/null < "${perfdata}" > "${perfout}"
   fi
-  if ! head -250 "${perfout}" | grep -q -m 3 "${disasm_regex}"
+  if ! grep -q -m 3 "${disasm_regex}" "${perfout}"
   then
     echo "${mode} annotate [Failed: missing disasm output from non default disassembler (using --objdump)]"
     err=1

From 114339ee4d66a328d186264ffa23a766542a9a15 Mon Sep 17 00:00:00 2001
From: Collin Funk <collin.funk1@gmail.com>
Date: Fri, 27 Jun 2025 20:41:25 -0700
Subject: [PATCH 069/179] perf build: Specify shellcheck should use bash

When someone has a global shellcheckrc file, for example at
~/.config/shellcheckrc, with the directive 'shell=sh', building perf
will fail with many shellcheck errors like:

    In tests/shell/base_probe/test_adding_kernel.sh line 294:
    (( TEST_RESULT += $? ))
    ^---------------------^ SC3006 (warning): In POSIX sh, standalone ((..)) is undefined.

    For more information:
      https://www.shellcheck.net/wiki/SC3006 -- In POSIX sh, standalone ((..)) is...
    make[5]: *** [tests/Build:91: tests/shell/base_probe/test_adding_kernel.sh.shellcheck_log] Error 1

Passing the '-s bash' option ensures that it runs correctly regardless
of a developers global configuration.

This patch adds '-s bash' and other options to the SHELLCHECK variable
in Makefile.perf and makes use of the variable consistently.

Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Link: https://lore.kernel.org/r/63491dbc8439edf2e949d80e264b9d22332fea61.1751082075.git.collin.funk1@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Build                | 2 +-
 tools/perf/Makefile.perf        | 2 ++
 tools/perf/arch/x86/Build       | 2 +-
 tools/perf/arch/x86/tests/Build | 2 +-
 tools/perf/tests/Build          | 2 +-
 tools/perf/trace/beauty/Build   | 2 +-
 tools/perf/util/Build           | 2 +-
 7 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/tools/perf/Build b/tools/perf/Build
index 06107f1e1d42..b03cc59dabf8 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -73,7 +73,7 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -s bash -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-y += $(SHELL_TEST_LOGS)
 
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 62697d62f706..9b51593628c1 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -259,6 +259,8 @@ ifneq ($(SHELLCHECK),)
   ifeq ($(shell expr $(shell $(SHELLCHECK) --version | grep version: | \
         sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \< 060), 1)
     SHELLCHECK :=
+  else
+    SHELLCHECK := $(SHELLCHECK) -s bash -a -S warning
   endif
 endif
 
diff --git a/tools/perf/arch/x86/Build b/tools/perf/arch/x86/Build
index afae7b8f6bd6..d31a1168757c 100644
--- a/tools/perf/arch/x86/Build
+++ b/tools/perf/arch/x86/Build
@@ -10,6 +10,6 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-test-y += $(SHELL_TEST_LOGS)
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index 5e00cbfd2d56..01d5527f38c7 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -22,6 +22,6 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-test-y += $(SHELL_TEST_LOGS)
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 2181f5a92148..d6c35dd0de3b 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -89,7 +89,7 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-test-y += $(SHELL_TEST_LOGS)
 
diff --git a/tools/perf/trace/beauty/Build b/tools/perf/trace/beauty/Build
index f50ebdc445b8..561590ee8cda 100644
--- a/tools/perf/trace/beauty/Build
+++ b/tools/perf/trace/beauty/Build
@@ -31,6 +31,6 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -s bash -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-y += $(SHELL_TEST_LOGS)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 45515b8f615a..12bc01c843b2 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -424,7 +424,7 @@ endif
 
 $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+	$(Q)$(call echo-cmd,test)$(SHELLCHECK) "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-util-y += $(SHELL_TEST_LOGS)
 

From b6cea9b4f892e15d6d0dfabb11f3db299cdb9f01 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 27 Jun 2025 18:23:01 -0700
Subject: [PATCH 070/179] perf test: Name the noploop process

Name the noploop process "perf-noploop" so that tests can easily check
for its existence.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250628012302.1242532-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/workloads/noploop.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/tests/workloads/noploop.c b/tools/perf/tests/workloads/noploop.c
index 940ea5910a84..656e472e6188 100644
--- a/tools/perf/tests/workloads/noploop.c
+++ b/tools/perf/tests/workloads/noploop.c
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#include <pthread.h>
 #include <stdlib.h>
 #include <signal.h>
 #include <unistd.h>
@@ -16,6 +17,7 @@ static int noploop(int argc, const char **argv)
 {
 	int sec = 1;
 
+	pthread_setname_np(pthread_self(), "perf-noploop");
 	if (argc > 0)
 		sec = atoi(argv[0]);
 

From 0e22c5ca44e687981f79598e650d26faad101746 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 27 Jun 2025 18:23:02 -0700
Subject: [PATCH 071/179] perf test: Add sched latency and script shell tests

Add shell tests covering the `perf sched latency` and `perf sched
script` commands. The test creates 2 noploop processes on the same
forced CPU, it then checks that the process appears in the `perf
sched` output.

Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250628012302.1242532-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/sched.sh | 93 +++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100755 tools/perf/tests/shell/sched.sh

diff --git a/tools/perf/tests/shell/sched.sh b/tools/perf/tests/shell/sched.sh
new file mode 100755
index 000000000000..c030126d1a0c
--- /dev/null
+++ b/tools/perf/tests/shell/sched.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+# perf sched tests
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+if [ "$(id -u)" != 0 ]; then
+  echo "[Skip] No root permission"
+  exit 2
+fi
+
+err=0
+perfdata=$(mktemp /tmp/__perf_test_sched.perf.data.XXXXX)
+PID1=0
+PID2=0
+
+cleanup() {
+  rm -f "${perfdata}"
+  rm -f "${perfdata}".old
+
+  trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+  echo "Unexpected signal in ${FUNCNAME[1]}"
+  cleanup
+  exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
+start_noploops() {
+  # Start two noploop workloads on CPU0 to trigger scheduling.
+  perf test -w noploop 10 &
+  PID1=$!
+  taskset -pc 0 $PID1
+  perf test -w noploop 10 &
+  PID2=$!
+  taskset -pc 0 $PID2
+
+  if ! grep -q 'Cpus_allowed_list:\s*0$' "/proc/$PID1/status"
+  then
+    echo "Sched [Error taskset did not work for the 1st noploop ($PID1)]"
+    grep Cpus_allowed /proc/$PID1/status
+    err=1
+  fi
+
+  if ! grep -q 'Cpus_allowed_list:\s*0$' "/proc/$PID2/status"
+  then
+    echo "Sched [Error taskset did not work for the 2nd noploop ($PID2)]"
+    grep Cpus_allowed /proc/$PID2/status
+    err=1
+  fi
+}
+
+cleanup_noploops() {
+  kill "$PID1" "$PID2"
+}
+
+test_sched_latency() {
+  echo "Sched latency"
+
+  start_noploops
+
+  perf sched record --no-inherit -o "${perfdata}" sleep 1
+  if ! perf sched latency -i "${perfdata}" | grep -q perf-noploop
+  then
+    echo "Sched latency [Failed missing output]"
+    err=1
+  fi
+
+  cleanup_noploops
+}
+
+test_sched_script() {
+  echo "Sched script"
+
+  start_noploops
+
+  perf sched record --no-inherit -o "${perfdata}" sleep 1
+  if ! perf sched script -i "${perfdata}" | grep -q perf-noploop
+  then
+    echo "Sched script [Failed missing output]"
+    err=1
+  fi
+
+  cleanup_noploops
+}
+
+test_sched_latency
+test_sched_script
+
+cleanup
+exit $err

From 139ee54a2b3e9a4042307dd0484f85c0b3b45539 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Tue, 1 Jul 2025 13:10:25 -0700
Subject: [PATCH 072/179] perf test: Check test suite description properly

Currently perf test checks the given string with descriptions for both
test suites and cases (subtests).  But sometimes it's confusing since
the subtests don't contain the important keyword.

I think it's better to check the suite level and run the whole suite
together if it matches description in the suite.

Before:
  $ perf test hwmon
  (no output)

After:
  $ perf test hwmon
   10: Hwmon PMU                                                       :
   10.1: Basic parsing test                                            : Ok
   10.2: Parsing without PMU name                                      : Ok
   10.3: Parsing with PMU name                                         : Ok

And keep the existing behavior when it only matches test description only.

  $ perf test "Equal cpu map"
   39.5: Equal cpu map                                                 : Ok

Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250701201027.1171561-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/builtin-test.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 80375ca39a37..846c9b3a732c 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -539,6 +539,7 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 
 		for (struct test_suite **t = suites; *t; t++, curr_suite++) {
 			int curr_test_case;
+			bool suite_matched = false;
 
 			if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) {
 				/*
@@ -556,6 +557,8 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 				}
 				if (skip)
 					continue;
+			} else {
+				suite_matched = true;
 			}
 
 			if (intlist__find(skiplist, curr_suite + 1)) {
@@ -567,10 +570,10 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 
 			for (unsigned int run = 0; run < runs_per_test; run++) {
 				test_suite__for_each_test_case(*t, curr_test_case) {
-					if (!perf_test__matches(test_description(*t, curr_test_case),
+					if (!suite_matched &&
+					    !perf_test__matches(test_description(*t, curr_test_case),
 								curr_suite, argc, argv))
 						continue;
-
 					err = start_test(*t, curr_suite, curr_test_case,
 							 &child_tests[child_test_num++],
 							 width, pass);

From 34c4ff1cbf7e7b600496c5adb72131ec5510e459 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Tue, 1 Jul 2025 13:10:26 -0700
Subject: [PATCH 073/179] perf test: Add libsubcmd help tests

Add a set of tests for subcmd routines.  Currently it fails the last one
since there's a bug.  It'll be fixed by the next commit.

  $ perf test subcmd
   69: libsubcmd help tests                                            :
   69.1: Load subcmd names                                             : Ok
   69.2: Uniquify subcmd names                                         : Ok
   69.3: Exclude duplicate subcmd names                                : FAILED!

Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250701201027.1171561-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/Build          |   1 +
 tools/perf/tests/builtin-test.c |   1 +
 tools/perf/tests/subcmd-help.c  | 108 ++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h        |   2 +
 4 files changed, 112 insertions(+)
 create mode 100644 tools/perf/tests/subcmd-help.c

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index d6c35dd0de3b..3e8394be15ae 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -69,6 +69,7 @@ perf-test-y += symbols.o
 perf-test-y += util.o
 perf-test-y += hwmon_pmu.o
 perf-test-y += tool_pmu.o
+perf-test-y += subcmd-help.o
 
 ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc))
 perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 846c9b3a732c..e242d56523ce 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -139,6 +139,7 @@ static struct test_suite *generic_tests[] = {
 	&suite__event_groups,
 	&suite__symbols,
 	&suite__util,
+	&suite__subcmd_help,
 	NULL,
 };
 
diff --git a/tools/perf/tests/subcmd-help.c b/tools/perf/tests/subcmd-help.c
new file mode 100644
index 000000000000..2280b4c0e5e7
--- /dev/null
+++ b/tools/perf/tests/subcmd-help.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "tests.h"
+#include <linux/compiler.h>
+#include <subcmd/help.h>
+
+static int test__load_cmdnames(struct test_suite *test __maybe_unused,
+			       int subtest __maybe_unused)
+{
+	struct cmdnames cmds = {};
+
+	add_cmdname(&cmds, "aaa", 3);
+	add_cmdname(&cmds, "foo", 3);
+	add_cmdname(&cmds, "xyz", 3);
+
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds, "aaa") == 1);
+	TEST_ASSERT_VAL("wrong cmd", is_in_cmdlist(&cmds, "bar") == 0);
+	TEST_ASSERT_VAL("case sensitive", is_in_cmdlist(&cmds, "XYZ") == 0);
+
+	clean_cmdnames(&cmds);
+	return TEST_OK;
+}
+
+static int test__uniq_cmdnames(struct test_suite *test __maybe_unused,
+			       int subtest __maybe_unused)
+{
+	struct cmdnames cmds = {};
+
+	/* uniq() assumes it's sorted */
+	add_cmdname(&cmds, "aaa", 3);
+	add_cmdname(&cmds, "aaa", 3);
+	add_cmdname(&cmds, "bbb", 3);
+
+	TEST_ASSERT_VAL("invalid original size", cmds.cnt == 3);
+	/* uniquify command names (to remove second 'aaa') */
+	uniq(&cmds);
+	TEST_ASSERT_VAL("invalid final size", cmds.cnt == 2);
+
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds, "aaa") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds, "bbb") == 1);
+	TEST_ASSERT_VAL("wrong cmd", is_in_cmdlist(&cmds, "ccc") == 0);
+
+	clean_cmdnames(&cmds);
+	return TEST_OK;
+}
+
+static int test__exclude_cmdnames(struct test_suite *test __maybe_unused,
+				  int subtest __maybe_unused)
+{
+	struct cmdnames cmds1 = {};
+	struct cmdnames cmds2 = {};
+
+	add_cmdname(&cmds1, "aaa", 3);
+	add_cmdname(&cmds1, "bbb", 3);
+	add_cmdname(&cmds1, "ccc", 3);
+	add_cmdname(&cmds1, "ddd", 3);
+	add_cmdname(&cmds1, "eee", 3);
+	add_cmdname(&cmds1, "fff", 3);
+	add_cmdname(&cmds1, "ggg", 3);
+	add_cmdname(&cmds1, "hhh", 3);
+	add_cmdname(&cmds1, "iii", 3);
+	add_cmdname(&cmds1, "jjj", 3);
+
+	add_cmdname(&cmds2, "bbb", 3);
+	add_cmdname(&cmds2, "eee", 3);
+	add_cmdname(&cmds2, "jjj", 3);
+
+	TEST_ASSERT_VAL("invalid original size", cmds1.cnt == 10);
+	TEST_ASSERT_VAL("invalid original size", cmds2.cnt == 3);
+
+	/* remove duplicate command names in cmds1 */
+	exclude_cmds(&cmds1, &cmds2);
+
+	TEST_ASSERT_VAL("invalid excluded size", cmds1.cnt == 7);
+	TEST_ASSERT_VAL("invalid excluded size", cmds2.cnt == 3);
+
+	/* excluded commands should not belong to cmds1 */
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "aaa") == 1);
+	TEST_ASSERT_VAL("wrong cmd", is_in_cmdlist(&cmds1, "bbb") == 0);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "ccc") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "ddd") == 1);
+	TEST_ASSERT_VAL("wrong cmd", is_in_cmdlist(&cmds1, "eee") == 0);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "fff") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "ggg") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "hhh") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds1, "iii") == 1);
+	TEST_ASSERT_VAL("wrong cmd", is_in_cmdlist(&cmds1, "jjj") == 0);
+
+	/* they should be only in cmds2 */
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds2, "bbb") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds2, "eee") == 1);
+	TEST_ASSERT_VAL("cannot find cmd", is_in_cmdlist(&cmds2, "jjj") == 1);
+
+	clean_cmdnames(&cmds1);
+	clean_cmdnames(&cmds2);
+	return TEST_OK;
+}
+
+static struct test_case tests__subcmd_help[] = {
+	TEST_CASE("Load subcmd names", load_cmdnames),
+	TEST_CASE("Uniquify subcmd names", uniq_cmdnames),
+	TEST_CASE("Exclude duplicate subcmd names", exclude_cmdnames),
+	{	.name = NULL, }
+};
+
+struct test_suite suite__subcmd_help = {
+	.desc = "libsubcmd help tests",
+	.test_cases = tests__subcmd_help,
+};
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 4c128a959441..97e62db8764a 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -3,6 +3,7 @@
 #define TESTS_H
 
 #include <stdbool.h>
+#include "util/debug.h"
 
 enum {
 	TEST_OK   =  0,
@@ -177,6 +178,7 @@ DECLARE_SUITE(sigtrap);
 DECLARE_SUITE(event_groups);
 DECLARE_SUITE(symbols);
 DECLARE_SUITE(util);
+DECLARE_SUITE(subcmd_help);
 
 /*
  * PowerPC and S390 do not support creation of instruction breakpoints using the

From 1fdf938168c4d26fa279d4f204768690d1f9c4ae Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Tue, 1 Jul 2025 13:10:27 -0700
Subject: [PATCH 074/179] perf tools: Fix use-after-free in help_unknown_cmd()

Currently perf aborts when it finds an invalid command.  I guess it
depends on the environment as I have some custom commands in the path.

  $ perf bad-command
  perf: 'bad-command' is not a perf-command. See 'perf --help'.
  Aborted (core dumped)

It's because the exclude_cmds() in libsubcmd has a use-after-free when
it removes some entries.  After copying one to another entry, it keeps
the pointer in the both position.  And the next copy operation will free
the later one but it's the same entry in the previous one.

For example, let's say cmds = { A, B, C, D, E } and excludes = { B, E }.

  ci  cj  ei   cmds-name  excludes
  -----------+--------------------
   0   0   0 |     A         B       :    cmp < 0, ci == cj
   1   1   0 |     B         B       :    cmp == 0
   2   1   1 |     C         E       :    cmp < 0, ci != cj

At this point, it frees cmds->names[1] and cmds->names[1] is assigned to
cmds->names[2].

   3   2   1 |     D         E       :    cmp < 0, ci != cj

Now it frees cmds->names[2] but it's the same as cmds->names[1].  So
accessing cmds->names[1] will be invalid.

This makes the subcmd tests succeed.

  $ perf test subcmd
   69: libsubcmd help tests                                            :
   69.1: Load subcmd names                                             : Ok
   69.2: Uniquify subcmd names                                         : Ok
   69.3: Exclude duplicate subcmd names                                : Ok

Fixes: 4b96679170c6 ("libsubcmd: Avoid SEGV/use-after-free when commands aren't excluded")
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250701201027.1171561-3-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/subcmd/help.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/lib/subcmd/help.c b/tools/lib/subcmd/help.c
index 8561b0f01a24..9ef569492560 100644
--- a/tools/lib/subcmd/help.c
+++ b/tools/lib/subcmd/help.c
@@ -9,6 +9,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <dirent.h>
+#include <assert.h>
 #include "subcmd-util.h"
 #include "help.h"
 #include "exec-cmd.h"
@@ -82,10 +83,11 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
 				ci++;
 				cj++;
 			} else {
-				zfree(&cmds->names[cj]);
-				cmds->names[cj++] = cmds->names[ci++];
+				cmds->names[cj++] = cmds->names[ci];
+				cmds->names[ci++] = NULL;
 			}
 		} else if (cmp == 0) {
+			zfree(&cmds->names[ci]);
 			ci++;
 			ei++;
 		} else if (cmp > 0) {
@@ -94,12 +96,12 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
 	}
 	if (ci != cj) {
 		while (ci < cmds->cnt) {
-			zfree(&cmds->names[cj]);
-			cmds->names[cj++] = cmds->names[ci++];
+			cmds->names[cj++] = cmds->names[ci];
+			cmds->names[ci++] = NULL;
 		}
 	}
 	for (ci = cj; ci < cmds->cnt; ci++)
-		zfree(&cmds->names[ci]);
+		assert(cmds->names[ci] == NULL);
 	cmds->cnt = cj;
 }
 

From 508b228942b291cb69f11027c07ca17ab2ac03bc Mon Sep 17 00:00:00 2001
From: Thomas Richter <tmricht@linux.ibm.com>
Date: Mon, 23 Jun 2025 15:27:31 +0200
Subject: [PATCH 075/179] perf list: Add IBM z17 event descriptions

Update IBM z17 counter description using document SA23-2260-08:
"The Load-Program-Parameter and the CPU-Measurement Facilities"
released in May 2025 to include counter definitions for IBM z17
counter sets:
* Basic counter set
* Problem/user counter set
* Crypto counter set.

Use document SA23-2261-09:
"The CPU-Measurement Facility Extended Counters Definition
 for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15, z16 and z17"
released on April 2025 to include counter definitions for IBM z17
* Extended counter set
* MT-Diagnostic counter set.

Use document SA22-7832-14:
"z/Architecture Principles of Operation."
released in April 2025 to include counter definitions for IBM z17
* PAI-Crypto counter set
* PAI-Extention counter set.

Use document
"CPU MF Formulas and Updates April 2025"
released in April 2025 to include metric calculations.

Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250623132731.899525-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/s390/cf_z17/basic.json    |   58 +
 .../pmu-events/arch/s390/cf_z17/crypto6.json  |  142 ++
 .../pmu-events/arch/s390/cf_z17/extended.json |  541 ++++++++
 .../arch/s390/cf_z17/pai_crypto.json          | 1213 +++++++++++++++++
 .../pmu-events/arch/s390/cf_z17/pai_ext.json  |  261 ++++
 .../arch/s390/cf_z17/transaction.json         |   72 +
 tools/perf/pmu-events/arch/s390/mapfile.csv   |    1 +
 7 files changed, 2288 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/basic.json
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/crypto6.json
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/extended.json
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/pai_ext.json
 create mode 100644 tools/perf/pmu-events/arch/s390/cf_z17/transaction.json

diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/basic.json b/tools/perf/pmu-events/arch/s390/cf_z17/basic.json
new file mode 100644
index 000000000000..1023d47028ce
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/basic.json
@@ -0,0 +1,58 @@
+[
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "0",
+		"EventName": "CPU_CYCLES",
+		"BriefDescription": "Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles, excluding the number of cycles while the CPU is in the wait state."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "1",
+		"EventName": "INSTRUCTIONS",
+		"BriefDescription": "Instruction Count",
+		"PublicDescription": "This counter counts the total number of instructions executed by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "2",
+		"EventName": "L1I_DIR_WRITES",
+		"BriefDescription": "Level-1 I-Cache Directory Write Count",
+		"PublicDescription": "This counter counts the total number of level-1 instruction-cache or unified-cache directory writes."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "3",
+		"EventName": "L1I_PENALTY_CYCLES",
+		"BriefDescription": "Level-1 I-Cache Penalty Cycle Count",
+		"PublicDescription": "This counter counts the total number of cache penalty cycles for level-1 instruction cache or unified cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "4",
+		"EventName": "L1D_DIR_WRITES",
+		"BriefDescription": "Level-1 D-Cache Directory Write Count",
+		"PublicDescription": "This counter counts the total number of level-1 data-cache directory writes."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "5",
+		"EventName": "L1D_PENALTY_CYCLES",
+		"BriefDescription": "Level-1 D-Cache Penalty Cycle Count",
+		"PublicDescription": "This counter counts the total number of cache penalty cycles for level-1 data cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "32",
+		"EventName": "PROBLEM_STATE_CPU_CYCLES",
+		"BriefDescription": "Problem-State Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the CPU is in the problem state, excluding the number of cycles while the CPU is in the wait state."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "33",
+		"EventName": "PROBLEM_STATE_INSTRUCTIONS",
+		"BriefDescription": "Problem-State Instruction Count",
+		"PublicDescription": "This counter counts the total number of instructions executed by the CPU while in the problem state."
+	}
+]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/crypto6.json b/tools/perf/pmu-events/arch/s390/cf_z17/crypto6.json
new file mode 100644
index 000000000000..8b4380b8e489
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/crypto6.json
@@ -0,0 +1,142 @@
+[
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "64",
+		"EventName": "PRNG_FUNCTIONS",
+		"BriefDescription": "PRNG Function Count",
+		"PublicDescription": "This counter counts the total number of the pseudorandom-number-generation functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "65",
+		"EventName": "PRNG_CYCLES",
+		"BriefDescription": "PRNG Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the DEA/AES/SHA coprocessor is busy performing the pseudorandom- number-generation functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "66",
+		"EventName": "PRNG_BLOCKED_FUNCTIONS",
+		"BriefDescription": "PRNG Blocked Function Count",
+		"PublicDescription": "This counter counts the total number of the pseudorandom-number-generation functions that are issued by the CPU and are blocked because the DEA/AES/SHA coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "67",
+		"EventName": "PRNG_BLOCKED_CYCLES",
+		"BriefDescription": "PRNG Blocked Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles blocked for the pseudorandom-number-generation functions issued by the CPU because the DEA/AES/SHA coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "68",
+		"EventName": "SHA_FUNCTIONS",
+		"BriefDescription": "SHA Function Count",
+		"PublicDescription": "This counter counts the total number of the SHA functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "69",
+		"EventName": "SHA_CYCLES",
+		"BriefDescription": "SHA Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the SHA coprocessor is busy performing the SHA functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "70",
+		"EventName": "SHA_BLOCKED_FUNCTIONS",
+		"BriefDescription": "SHA Blocked Function Count",
+		"PublicDescription": "This counter counts the total number of the SHA functions that are issued by the CPU and are blocked because the SHA coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "71",
+		"EventName": "SHA_BLOCKED_CYCLES",
+		"BriefDescription": "SHA Blocked Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles blocked for the SHA functions issued by the CPU because the SHA coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "72",
+		"EventName": "DEA_FUNCTIONS",
+		"BriefDescription": "DEA Function Count",
+		"PublicDescription": "This counter counts the total number of the DEA functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "73",
+		"EventName": "DEA_CYCLES",
+		"BriefDescription": "DEA Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the DEA/AES coprocessor is busy performing the DEA functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "74",
+		"EventName": "DEA_BLOCKED_FUNCTIONS",
+		"BriefDescription": "DEA Blocked Function Count",
+		"PublicDescription": "This counter counts the total number of the DEA functions that are issued by the CPU and are blocked because the DEA/AES coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "75",
+		"EventName": "DEA_BLOCKED_CYCLES",
+		"BriefDescription": "DEA Blocked Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles blocked for the DEA functions issued by the CPU because the DEA/AES coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "76",
+		"EventName": "AES_FUNCTIONS",
+		"BriefDescription": "AES Function Count",
+		"PublicDescription": "This counter counts the total number of the AES functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "77",
+		"EventName": "AES_CYCLES",
+		"BriefDescription": "AES Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the DEA/AES coprocessor is busy performing the AES functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "78",
+		"EventName": "AES_BLOCKED_FUNCTIONS",
+		"BriefDescription": "AES Blocked Function Count",
+		"PublicDescription": "This counter counts the total number of the AES functions that are issued by the CPU and are blocked because the DEA/AES coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "79",
+		"EventName": "AES_BLOCKED_CYCLES",
+		"BriefDescription": "AES Blocked Cycle Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles blocked for the AES functions issued by the CPU because the DEA/AES coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "80",
+		"EventName": "ECC_FUNCTION_COUNT",
+		"BriefDescription": "ECC Function Count",
+		"PublicDescription": "This counter counts the total number of the elliptic-curve cryptography (ECC) functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "81",
+		"EventName": "ECC_CYCLES_COUNT",
+		"BriefDescription": "ECC Cycles Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles when the ECC coprocessor is busy performing the elliptic-curve cryptography (ECC) functions issued by the CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "82",
+		"EventName": "ECC_BLOCKED_FUNCTION_COUNT",
+		"BriefDescription": "Ecc Blocked Function Count",
+		"PublicDescription": "This counter counts the total number of the elliptic-curve cryptography (ECC) functions that are issued by the CPU and are blocked because the ECC coprocessor is busy performing a function issued by another CPU."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "83",
+		"EventName": "ECC_BLOCKED_CYCLES_COUNT",
+		"BriefDescription": "ECC Blocked Cycles Count",
+		"PublicDescription": "This counter counts the total number of CPU cycles blocked for the elliptic-curve cryptography (ECC) functions issued by the CPU because the ECC coprocessor is busy performing a function issued by another CPU."
+	}
+]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/extended.json b/tools/perf/pmu-events/arch/s390/cf_z17/extended.json
new file mode 100644
index 000000000000..e139482e217f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/extended.json
@@ -0,0 +1,541 @@
+[
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "128",
+		"EventName": "L1D_RO_EXCL_WRITES",
+		"BriefDescription": "L1D Read-only Exclusive Writes",
+		"PublicDescription": "A directory write to the Level-1 Data cache where the line was originally in a Read-Only state in the cache but has been updated to be in the Exclusive state that allows stores to the cache line."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "129",
+		"EventName": "DTLB2_WRITES",
+		"BriefDescription": "DTLB2 Writes",
+		"PublicDescription": "A translation has been written into The Translation Lookaside Buffer 2 (TLB2) and the request was made by the Level-1 Data cache. This is a replacement for what was provided for the DTLB on z13 and prior machines."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "130",
+		"EventName": "DTLB2_MISSES",
+		"BriefDescription": "DTLB2 Misses",
+		"PublicDescription": "A TLB2 miss is in progress for a request made by the Level-1 Data cache. Incremented by one for every TLB2 miss in progress for the Level-1 Data cache on this cycle. This is a replacement for what was provided for the DTLB on z13 and prior machines."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "131",
+		"EventName": "CRSTE_1MB_WRITES",
+		"BriefDescription": "One Megabyte CRSTE writes",
+		"PublicDescription": "A translation entry was written into the Combined Region and Segment Table Entry array in the Level-2 TLB for a one-megabyte page."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "132",
+		"EventName": "DTLB2_GPAGE_WRITES",
+		"BriefDescription": "DTLB2 Two-Gigabyte Page Writes",
+		"PublicDescription": "A translation entry for a two-gigabyte page was written into the Level-2 TLB."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "134",
+		"EventName": "ITLB2_WRITES",
+		"BriefDescription": "ITLB2 Writes",
+		"PublicDescription": "A translation entry has been written into the Translation Lookaside Buffer 2 (TLB2) and the request was made by the Level-1 Instruction cache. This is a replacement for what was provided for the ITLB on z13 and prior machines."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "135",
+		"EventName": "ITLB2_MISSES",
+		"BriefDescription": "ITLB2 Misses",
+		"PublicDescription": "A TLB2 miss is in progress for a request made by the Level-1 Instruction cache. Incremented by one for every TLB2 miss in progress for the Level-1 Instruction cache in a cycle. This is a replacement for what was provided for the ITLB on z13 and prior machines."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "137",
+		"EventName": "TLB2_PTE_WRITES",
+		"BriefDescription": "TLB2 Page Table Entry Writes",
+		"PublicDescription": "A translation entry was written into the Page Table Entry array in the Level-2 TLB."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "138",
+		"EventName": "TLB2_CRSTE_WRITES",
+		"BriefDescription": "TLB2 Combined Region and Segment Entry Writes",
+		"PublicDescription": "Translation entries were written into the Combined Region and Segment Table Entry array and the Page Table Entry array in the Level-2 TLB."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "139",
+		"EventName": "TLB2_ENGINES_BUSY",
+		"BriefDescription": "TLB2 Engines Busy",
+		"PublicDescription": "The number of Level-2 TLB translation engines busy in a cycle."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "140",
+		"EventName": "TX_C_TEND",
+		"BriefDescription": "Completed TEND instructions in constrained TX mode",
+		"PublicDescription": "A TEND instruction has completed in a constrained transactional-execution mode."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "141",
+		"EventName": "TX_NC_TEND",
+		"BriefDescription": "Completed TEND instructions in non-constrained TX mode",
+		"PublicDescription": "A TEND instruction has completed in a non-constrained transactional-execution mode."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "143",
+		"EventName": "L1C_TLB2_MISSES",
+		"BriefDescription": "L1C TLB2 Misses",
+		"PublicDescription": "Increments by one for any cycle where a Level-1 cache or Level-2 TLB miss is in progress."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "145",
+		"EventName": "DCW_REQ",
+		"BriefDescription": "Directory Write Level 1 Data Cache from L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from the requestors Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "146",
+		"EventName": "DCW_REQ_IV",
+		"BriefDescription": "Directory Write Level 1 Data Cache from L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from the requestors Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "147",
+		"EventName": "DCW_REQ_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Data Cache from L2-Cache with Chip HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from the requestors Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "148",
+		"EventName": "DCW_REQ_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Data Cache from L2-Cache with Drawer HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from the requestors Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "149",
+		"EventName": "DCW_ON_CHIP",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Chip L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Chip Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "150",
+		"EventName": "DCW_ON_CHIP_IV",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Chip L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Chip Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "151",
+		"EventName": "DCW_ON_CHIP_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Chip L2-Cache with Chip HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Chip Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "152",
+		"EventName": "DCW_ON_CHIP_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Chip L2-Cache with Drawer HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Chip Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "153",
+		"EventName": "DCW_ON_MODULE",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Module L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Module Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "154",
+		"EventName": "DCW_ON_DRAWER",
+		"BriefDescription": "Directory Write Level 1 Data Cache from On-Drawer L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an On-Drawer Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "155",
+		"EventName": "DCW_OFF_DRAWER",
+		"BriefDescription": "Directory Write Level 1 Data Cache from Off-Drawer L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Data cache directory where the returned cache line was sourced from an Off-Drawer Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "156",
+		"EventName": "DCW_ON_CHIP_MEMORY",
+		"BriefDescription": "Directory Write Level 1 Cache from On-Chip Memory",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from On-Chip memory."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "157",
+		"EventName": "DCW_ON_MODULE_MEMORY",
+		"BriefDescription": "Directory Write Level 1 Cache from On-Module Memory",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from On-Module memory."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "158",
+		"EventName": "DCW_ON_DRAWER_MEMORY",
+		"BriefDescription": "Directory Write Level 1 Cache from On-Drawer Memory",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from On-Drawer memory."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "159",
+		"EventName": "DCW_OFF_DRAWER_MEMORY",
+		"BriefDescription": "Directory Write Level 1 Cache from Off-Drawer Memory",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from Off-Drawer memory."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "160",
+		"EventName": "IDCW_ON_MODULE_IV",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Module Memory L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from an On-Module Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "161",
+		"EventName": "IDCW_ON_MODULE_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Module Memory L2-Cache with Chip Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from an On-Module Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "162",
+		"EventName": "IDCW_ON_MODULE_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Module Memory L2-Cache with Drawer Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from an On-Module Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "163",
+		"EventName": "IDCW_ON_DRAWER_IV",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Drawer L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from an On-Drawer Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "164",
+		"EventName": "IDCW_ON_DRAWER_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Drawer L2-Cache with Chip Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 instruction cache directory where the returned cache line was sourced from an On-Drawer Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "165",
+		"EventName": "IDCW_ON_DRAWER_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from On-Drawer L2-Cache with Drawer Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 instruction cache directory where the returned cache line was sourced from an On-Drawer Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "166",
+		"EventName": "IDCW_OFF_DRAWER_IV",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from Off-Drawer L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 instruction cache directory where the returned cache line was sourced from an Off-Drawer Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "167",
+		"EventName": "IDCW_OFF_DRAWER_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from Off-Drawer L2-Cache with Chip Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 instruction cache directory where the returned cache line was sourced from an Off-Drawer Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "168",
+		"EventName": "IDCW_OFF_DRAWER_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction and Data Cache from Off-Drawer L2-Cache with Drawer Hit",
+		"PublicDescription": "A directory write to the Level-1 Data or Level-1 Instruction cache directory where the returned cache line was sourced from an Off-Drawer Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "169",
+		"EventName": "ICW_REQ",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced the requestors Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "170",
+		"EventName": "ICW_REQ_IV",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from the requestors Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "171",
+		"EventName": "ICW_REQ_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from L2-Cache with Chip HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from the requestors Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "172",
+		"EventName": "ICW_REQ_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from L2-Cache with Drawer HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from the requestors Level-2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "173",
+		"EventName": "ICW_ON_CHIP",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Chip L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Chip Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "174",
+		"EventName": "ICW_ON_CHIP_IV",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Chip L2-Cache with Intervention",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Chip Level-2 cache with intervention."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "175",
+		"EventName": "ICW_ON_CHIP_CHIP_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Chip L2-Cache with Chip HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Chip Level-2 cache after using chip level horizontal persistence, Chip-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "176",
+		"EventName": "ICW_ON_CHIP_DRAWER_HIT",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Chip L2-Cache with Drawer HP Hit",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Chip level 2 cache after using drawer level horizontal persistence, Drawer-HP hit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "177",
+		"EventName": "ICW_ON_MODULE",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Module L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Module Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "178",
+		"EventName": "ICW_ON_DRAWER",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from On-Drawer L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an On-Drawer Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "179",
+		"EventName": "ICW_OFF_DRAWER",
+		"BriefDescription": "Directory Write Level 1 Instruction Cache from Off-Drawer L2-Cache",
+		"PublicDescription": "A directory write to the Level-1 Instruction cache directory where the returned cache line was sourced from an Off-Drawer Level-2 cache."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "202",
+		"EventName": "CYCLES_SAMETHRD",
+		"BriefDescription": "CPU is not in wait state and CPU is running by itself",
+		"PublicDescription": "The number of cycles the CPU is not in wait state and the CPU is running by itself on the Core."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "203",
+		"EventName": "CYCLES_DIFFTHRD",
+		"BriefDescription": "CPU is not in wait state and CPU is running by another thread",
+		"PublicDescription": "The number of cycles the CPU is not in wait state and the CPU is running with another thread on the Core."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "204",
+		"EventName": "INST_SAMETHRD",
+		"BriefDescription": "Instructions executed on CPU by itself",
+		"PublicDescription": "The number of instructions executed on the CPU and the CPU is running by itself on the Core."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "205",
+		"EventName": "INST_DIFFTHRD",
+		"BriefDescription": "Instructions executed on CPU by another thread",
+		"PublicDescription": "The number of instructions executed on the CPU and the CPU is running with another thread on the Core."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "206",
+		"EventName": "WRONG_BRANCH_PREDICTION",
+		"BriefDescription": "Incorrect branch prediction on core",
+		"PublicDescription": "A count of the number of branches that were predicted incorrectly by the branch prediction logic in the Core. This includes incorrectly predicted branches that are executed in Firmware. Examples of instructions implemented in Firmware are complicated instructions like MVCL (Move Character Long) and PC (Program Call)."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "225",
+		"EventName": "VX_BCD_EXECUTION_SLOTS",
+		"BriefDescription": "Count finished vector arithmetic Binary Coded Decimal instructions",
+		"PublicDescription": "Count of floating point execution slots used for finished vector arithmetic Binary Coded Decimal instructions. Instructions: VAP, VSP, VMP, VMSP, VDP, VSDP, VRP, VLIP, VSRP, VPSOP, VCP, VTP, VPKZ, VUPKZ, VCVB, VCVBG, VCVD, VCVDG, VSCHP, VSCSHP, VCSPH, VCLZDP, VPKZR, VSRPR, VUPKZH, VUPKZL, VTZ, VUPH, VUPL, VCVBX, VCVDX."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "226",
+		"EventName": "DECIMAL_INSTRUCTIONS",
+		"BriefDescription": "Decimal instruction dispatched",
+		"PublicDescription": "Decimal instruction dispatched. Instructions: CVB, CVD, AP, CP, DP, ED, EDMK, MP, SRP, SP, ZAP, TP."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "232",
+		"EventName": "LAST_HOST_TRANSLATIONS",
+		"BriefDescription": "Last host translation done",
+		"PublicDescription": "Last Host Translation done."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "244",
+		"EventName": "TX_NC_TABORT",
+		"BriefDescription": "Aborted transactions in unconstrained TX mode",
+		"PublicDescription": "A transaction abort has occurred in a non-constrained transactional-execution mode."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "245",
+		"EventName": "TX_C_TABORT_NO_SPECIAL",
+		"BriefDescription": "Aborted transactions in constrained TX mode",
+		"PublicDescription": "A transaction abort has occurred in a constrained transactional-execution mode and the CPU is not using any special logic to allow the transaction to complete."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "246",
+		"EventName": "TX_C_TABORT_SPECIAL",
+		"BriefDescription": "Aborted transactions in constrained TX mode using special completion logic",
+		"PublicDescription": "A transaction abort has occurred in a constrained transactional-execution mode and the CPU is using special logic to allow the transaction to complete."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "248",
+		"EventName": "DFLT_ACCESS",
+		"BriefDescription": "Cycles CPU spent obtaining access to Deflate unit",
+		"PublicDescription": "Cycles CPU spent obtaining access to Deflate unit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "253",
+		"EventName": "DFLT_CYCLES",
+		"BriefDescription": "Cycles CPU is using Deflate unit",
+		"PublicDescription": "Cycles CPU is using Deflate unit."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "256",
+		"EventName": "SORTL",
+		"BriefDescription": "Count SORTL instructions",
+		"PublicDescription": "Increments by one for every SORT LISTS (SORTL) instruction executed."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "265",
+		"EventName": "DFLT_CC",
+		"BriefDescription": "Increments DEFLATE CONVERSION CALL",
+		"PublicDescription": "Increments by one for every DEFLATE CONVERSION CALL (DFLTCC) instruction executed."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "266",
+		"EventName": "DFLT_CCFINISH",
+		"BriefDescription": "Increments completed DEFLATE CONVERSION CALL",
+		"PublicDescription": "Increments by one for every DEFLATE CONVERSION CALL (DFLTCC) instruction executed that ended in Condition Codes 0, 1 or 2."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "267",
+		"EventName": "NNPA_INVOCATIONS",
+		"BriefDescription": "NNPA Total invocations",
+		"PublicDescription": "Increments by one for every NEURAL NETWORK PROCESSING ASSIST (NNPA) instruction executed."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "268",
+		"EventName": "NNPA_COMPLETIONS",
+		"BriefDescription": "NNPA Total completions",
+		"PublicDescription": "Increments by one for every NEURAL NETWORK PROCESSING ASSIST (NNPA) instruction executed that ended in Condition Code 0."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "269",
+		"EventName": "NNPA_WAIT_LOCK",
+		"BriefDescription": "Cycles spent obtaining NNPA lock",
+		"PublicDescription": "Cycles CPU spent obtaining access to IBM Z Integrated Accelerator for AI."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "270",
+		"EventName": "NNPA_HOLD_LOCK",
+		"BriefDescription": "Cycles spent holding NNPA lock",
+		"PublicDescription": "Cycles CPU is using IBM Z Integrated Accelerator for AI."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "272",
+		"EventName": "NNPA_INST_ONCHIP",
+		"BriefDescription": "NNPA instructions used on-chip Integrated Accelerator",
+		"PublicDescription": "A NEURAL NETWORK PROCESSING ASSIST (NNPA) instruction has used the Local On-Chip IBM Z Integrated Accelerator for AI during its execution"
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "273",
+		"EventName": "NNPA_INST_OFFCHIP",
+		"BriefDescription": "NNPA instructions used off-chip Integrated Accelerator",
+		"PublicDescription": "A NEURAL NETWORK PROCESSING ASSIST (NNPA) instruction has used an Off-Chip IBM Z Integrated Accelerator for AI during its execution."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "274",
+		"EventName": "NNPA_INST_DIFF",
+		"BriefDescription": "NNPA instructions used different Integrated Accelerator",
+		"PublicDescription": "A NEURAL NETWORK PROCESSING ASSIST (NNPA) instruction has used a different IBM Z Integrated Accelerator for AI since it was last executed."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "276",
+		"EventName": "NNPA_4K_PREFETCH",
+		"BriefDescription": "Number of 4K prefetches for Integated Accelerator",
+		"PublicDescription": "Number of 4K prefetches done for a remote IBM Z Integated Accelerator for AI."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "277",
+		"EventName": "NNPA_COMPL_LOCK",
+		"BriefDescription": "A Perform Locked Operation has completed",
+		"PublicDescription": "A PERFORM LOCKED OPERATION (PLO) has completed."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "278",
+		"EventName": "NNPA_RETRY_LOCK",
+		"BriefDescription": "A Perform Locked Operation has been retried",
+		"PublicDescription": "A PERFORM LOCKED OPERATION (PLO) has been retried and the CPU did not use any special logic to allow the PLO to complete."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "279",
+		"EventName": "NNPA_RETRY_LOCK_WITH_PLO",
+		"BriefDescription": "A Perform Locked Operation has been retried using special logic",
+		"PublicDescription": "A PERFORM LOCKED OPERATION (PLO) has been retried and the CPU is using special logic to allow PLO to complete."
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "448",
+		"EventName": "MT_DIAG_CYCLES_ONE_THR_ACTIVE",
+		"BriefDescription": "Cycle count with one thread active",
+		"PublicDescription": "Cycle count with one thread active"
+	},
+	{
+		"Unit": "CPU-M-CF",
+		"EventCode": "449",
+		"EventName": "MT_DIAG_CYCLES_TWO_THR_ACTIVE",
+		"BriefDescription": "Cycle count with two threads active",
+		"PublicDescription": "Cycle count with two threads active"
+	}
+]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json b/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
new file mode 100644
index 000000000000..a7176c988b8a
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
@@ -0,0 +1,1213 @@
+[
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4096",
+		"EventName": "CRYPTO_ALL",
+		"BriefDescription": "CRYPTO ALL",
+		"PublicDescription": "Sums of all non zero cryptography counters"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4097",
+		"EventName": "KM_DEA",
+		"BriefDescription": "KM DEA",
+		"PublicDescription": "KM-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4098",
+		"EventName": "KM_TDEA_128",
+		"BriefDescription": "KM TDEA 128",
+		"PublicDescription": "KM-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4099",
+		"EventName": "KM_TDEA_192",
+		"BriefDescription": "KM TDEA 192",
+		"PublicDescription": "KM-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4100",
+		"EventName": "KM_ENCRYPTED_DEA",
+		"BriefDescription": "KM ENCRYPTED DEA",
+		"PublicDescription": "KM-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4101",
+		"EventName": "KM_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KM ENCRYPTED TDEA 128",
+		"PublicDescription": "KM-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4102",
+		"EventName": "KM_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KM ENCRYPTED TDEA 192",
+		"PublicDescription": "KM-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4103",
+		"EventName": "KM_AES_128",
+		"BriefDescription": "KM AES 128",
+		"PublicDescription": "KM-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4104",
+		"EventName": "KM_AES_192",
+		"BriefDescription": "KM AES 192",
+		"PublicDescription": "KM-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4105",
+		"EventName": "KM_AES_256",
+		"BriefDescription": "KM AES 256",
+		"PublicDescription": "KM-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4106",
+		"EventName": "KM_ENCRYPTED_AES_128",
+		"BriefDescription": "KM ENCRYPTED AES 128",
+		"PublicDescription": "KM-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4107",
+		"EventName": "KM_ENCRYPTED_AES_192",
+		"BriefDescription": "KM ENCRYPTED AES 192",
+		"PublicDescription": "KM-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4108",
+		"EventName": "KM_ENCRYPTED_AES_256",
+		"BriefDescription": "KM ENCRYPTED AES 256",
+		"PublicDescription": "KM-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4109",
+		"EventName": "KM_XTS_AES_128",
+		"BriefDescription": "KM XTS AES 128",
+		"PublicDescription": "KM-XTS-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4110",
+		"EventName": "KM_XTS_AES_256",
+		"BriefDescription": "KM XTS AES 256",
+		"PublicDescription": "KM-XTS-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4111",
+		"EventName": "KM_XTS_ENCRYPTED_AES_128",
+		"BriefDescription": "KM XTS ENCRYPTED AES 128",
+		"PublicDescription": "KM-XTS-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4112",
+		"EventName": "KM_XTS_ENCRYPTED_AES_256",
+		"BriefDescription": "KM XTS ENCRYPTED AES 256",
+		"PublicDescription": "KM-XTS-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4113",
+		"EventName": "KMC_DEA",
+		"BriefDescription": "KMC DEA",
+		"PublicDescription": "KMC-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4114",
+		"EventName": "KMC_TDEA_128",
+		"BriefDescription": "KMC TDEA 128",
+		"PublicDescription": "KMC-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4115",
+		"EventName": "KMC_TDEA_192",
+		"BriefDescription": "KMC TDEA 192",
+		"PublicDescription": "KMC-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4116",
+		"EventName": "KMC_ENCRYPTED_DEA",
+		"BriefDescription": "KMC ENCRYPTED DEA",
+		"PublicDescription": "KMC-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4117",
+		"EventName": "KMC_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KMC ENCRYPTED TDEA 128",
+		"PublicDescription": "KMC-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4118",
+		"EventName": "KMC_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KMC ENCRYPTED TDEA 192",
+		"PublicDescription": "KMC-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4119",
+		"EventName": "KMC_AES_128",
+		"BriefDescription": "KMC AES 128",
+		"PublicDescription": "KMC-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4120",
+		"EventName": "KMC_AES_192",
+		"BriefDescription": "KMC AES 192",
+		"PublicDescription": "KMC-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4121",
+		"EventName": "KMC_AES_256",
+		"BriefDescription": "KMC AES 256",
+		"PublicDescription": "KMC-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4122",
+		"EventName": "KMC_ENCRYPTED_AES_128",
+		"BriefDescription": "KMC ENCRYPTED AES 128",
+		"PublicDescription": "KMC-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4123",
+		"EventName": "KMC_ENCRYPTED_AES_192",
+		"BriefDescription": "KMC ENCRYPTED AES 192",
+		"PublicDescription": "KMC-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4124",
+		"EventName": "KMC_ENCRYPTED_AES_256",
+		"BriefDescription": "KMC ENCRYPTED AES 256",
+		"PublicDescription": "KMC-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4125",
+		"EventName": "KMC_PRNG",
+		"BriefDescription": "KMC PRNG",
+		"PublicDescription": "KMC-PRNG function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4126",
+		"EventName": "KMA_GCM_AES_128",
+		"BriefDescription": "KMA GCM AES 128",
+		"PublicDescription": "KMA-GCM-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4127",
+		"EventName": "KMA_GCM_AES_192",
+		"BriefDescription": "KMA GCM AES 192",
+		"PublicDescription": "KMA-GCM-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4128",
+		"EventName": "KMA_GCM_AES_256",
+		"BriefDescription": "KMA GCM AES 256",
+		"PublicDescription": "KMA-GCM-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4129",
+		"EventName": "KMA_GCM_ENCRYPTED_AES_128",
+		"BriefDescription": "KMA GCM ENCRYPTED AES 128",
+		"PublicDescription": "KMA-GCM-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4130",
+		"EventName": "KMA_GCM_ENCRYPTED_AES_192",
+		"BriefDescription": "KMA GCM ENCRYPTED AES 192",
+		"PublicDescription": "KMA-GCM-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4131",
+		"EventName": "KMA_GCM_ENCRYPTED_AES_256",
+		"BriefDescription": "KMA GCM ENCRYPTED AES 256",
+		"PublicDescription": "KMA-GCM-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4132",
+		"EventName": "KMF_DEA",
+		"BriefDescription": "KMF DEA",
+		"PublicDescription": "KMF-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4133",
+		"EventName": "KMF_TDEA_128",
+		"BriefDescription": "KMF TDEA 128",
+		"PublicDescription": "KMF-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4134",
+		"EventName": "KMF_TDEA_192",
+		"BriefDescription": "KMF TDEA 192",
+		"PublicDescription": "KMF-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4135",
+		"EventName": "KMF_ENCRYPTED_DEA",
+		"BriefDescription": "KMF ENCRYPTED DEA",
+		"PublicDescription": "KMF-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4136",
+		"EventName": "KMF_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KMF ENCRYPTED TDEA 128",
+		"PublicDescription": "KMF-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4137",
+		"EventName": "KMF_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KMF ENCRYPTED TDEA 192",
+		"PublicDescription": "KMF-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4138",
+		"EventName": "KMF_AES_128",
+		"BriefDescription": "KMF AES 128",
+		"PublicDescription": "KMF-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4139",
+		"EventName": "KMF_AES_192",
+		"BriefDescription": "KMF AES 192",
+		"PublicDescription": "KMF-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4140",
+		"EventName": "KMF_AES_256",
+		"BriefDescription": "KMF AES 256",
+		"PublicDescription": "KMF-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4141",
+		"EventName": "KMF_ENCRYPTED_AES_128",
+		"BriefDescription": "KMF ENCRYPTED AES 128",
+		"PublicDescription": "KMF-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4142",
+		"EventName": "KMF_ENCRYPTED_AES_192",
+		"BriefDescription": "KMF ENCRYPTED AES 192",
+		"PublicDescription": "KMF-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4143",
+		"EventName": "KMF_ENCRYPTED_AES_256",
+		"BriefDescription": "KMF ENCRYPTED AES 256",
+		"PublicDescription": "KMF-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4144",
+		"EventName": "KMCTR_DEA",
+		"BriefDescription": "KMCTR DEA",
+		"PublicDescription": "KMCTR-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4145",
+		"EventName": "KMCTR_TDEA_128",
+		"BriefDescription": "KMCTR TDEA 128",
+		"PublicDescription": "KMCTR-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4146",
+		"EventName": "KMCTR_TDEA_192",
+		"BriefDescription": "KMCTR TDEA 192",
+		"PublicDescription": "KMCTR-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4147",
+		"EventName": "KMCTR_ENCRYPTED_DEA",
+		"BriefDescription": "KMCTR ENCRYPTED DEA",
+		"PublicDescription": "KMCTR-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4148",
+		"EventName": "KMCTR_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KMCTR ENCRYPTED TDEA 128",
+		"PublicDescription": "KMCTR-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4149",
+		"EventName": "KMCTR_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KMCTR ENCRYPTED TDEA 192",
+		"PublicDescription": "KMCTR-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4150",
+		"EventName": "KMCTR_AES_128",
+		"BriefDescription": "KMCTR AES 128",
+		"PublicDescription": "KMCTR-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4151",
+		"EventName": "KMCTR_AES_192",
+		"BriefDescription": "KMCTR AES 192",
+		"PublicDescription": "KMCTR-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4152",
+		"EventName": "KMCTR_AES_256",
+		"BriefDescription": "KMCTR AES 256",
+		"PublicDescription": "KMCTR-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4153",
+		"EventName": "KMCTR_ENCRYPTED_AES_128",
+		"BriefDescription": "KMCTR ENCRYPTED AES 128",
+		"PublicDescription": "KMCTR-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4154",
+		"EventName": "KMCTR_ENCRYPTED_AES_192",
+		"BriefDescription": "KMCTR ENCRYPTED AES 192",
+		"PublicDescription": "KMCTR-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4155",
+		"EventName": "KMCTR_ENCRYPTED_AES_256",
+		"BriefDescription": "KMCTR ENCRYPTED AES 256",
+		"PublicDescription": "KMCTR-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4156",
+		"EventName": "KMO_DEA",
+		"BriefDescription": "KMO DEA",
+		"PublicDescription": "KMO-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4157",
+		"EventName": "KMO_TDEA_128",
+		"BriefDescription": "KMO TDEA 128",
+		"PublicDescription": "KMO-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4158",
+		"EventName": "KMO_TDEA_192",
+		"BriefDescription": "KMO TDEA 192",
+		"PublicDescription": "KMO-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4159",
+		"EventName": "KMO_ENCRYPTED_DEA",
+		"BriefDescription": "KMO ENCRYPTED DEA",
+		"PublicDescription": "KMO-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4160",
+		"EventName": "KMO_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KMO ENCRYPTED TDEA 128",
+		"PublicDescription": "KMO-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4161",
+		"EventName": "KMO_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KMO ENCRYPTED TDEA 192",
+		"PublicDescription": "KMO-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4162",
+		"EventName": "KMO_AES_128",
+		"BriefDescription": "KMO AES 128",
+		"PublicDescription": "KMO-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4163",
+		"EventName": "KMO_AES_192",
+		"BriefDescription": "KMO AES 192",
+		"PublicDescription": "KMO-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4164",
+		"EventName": "KMO_AES_256",
+		"BriefDescription": "KMO AES 256",
+		"PublicDescription": "KMO-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4165",
+		"EventName": "KMO_ENCRYPTED_AES_128",
+		"BriefDescription": "KMO ENCRYPTED AES 128",
+		"PublicDescription": "KMO-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4166",
+		"EventName": "KMO_ENCRYPTED_AES_192",
+		"BriefDescription": "KMO ENCRYPTED AES 192",
+		"PublicDescription": "KMO-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4167",
+		"EventName": "KMO_ENCRYPTED_AES_256",
+		"BriefDescription": "KMO ENCRYPTED AES 256",
+		"PublicDescription": "KMO-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4168",
+		"EventName": "KIMD_SHA_1",
+		"BriefDescription": "KIMD SHA 1",
+		"PublicDescription": "KIMD-SHA-1 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4169",
+		"EventName": "KIMD_SHA_256",
+		"BriefDescription": "KIMD SHA 256",
+		"PublicDescription": "KIMD-SHA-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4170",
+		"EventName": "KIMD_SHA_512",
+		"BriefDescription": "KIMD SHA 512",
+		"PublicDescription": "KIMD-SHA-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4171",
+		"EventName": "KIMD_SHA3_224",
+		"BriefDescription": "KIMD SHA3 224",
+		"PublicDescription": "KIMD-SHA3-224 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4172",
+		"EventName": "KIMD_SHA3_256",
+		"BriefDescription": "KIMD SHA3 256",
+		"PublicDescription": "KIMD-SHA3-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4173",
+		"EventName": "KIMD_SHA3_384",
+		"BriefDescription": "KIMD SHA3 384",
+		"PublicDescription": "KIMD-SHA3-384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4174",
+		"EventName": "KIMD_SHA3_512",
+		"BriefDescription": "KIMD SHA3 512",
+		"PublicDescription": "KIMD-SHA3-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4175",
+		"EventName": "KIMD_SHAKE_128",
+		"BriefDescription": "KIMD SHAKE 128",
+		"PublicDescription": "KIMD-SHAKE-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4176",
+		"EventName": "KIMD_SHAKE_256",
+		"BriefDescription": "KIMD SHAKE 256",
+		"PublicDescription": "KIMD-SHAKE-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4177",
+		"EventName": "KIMD_GHASH",
+		"BriefDescription": "KIMD GHASH",
+		"PublicDescription": "KIMD-GHASH function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4178",
+		"EventName": "KLMD_SHA_1",
+		"BriefDescription": "KLMD SHA 1",
+		"PublicDescription": "KLMD-SHA-1 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4179",
+		"EventName": "KLMD_SHA_256",
+		"BriefDescription": "KLMD SHA 256",
+		"PublicDescription": "KLMD-SHA-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4180",
+		"EventName": "KLMD_SHA_512",
+		"BriefDescription": "KLMD SHA 512",
+		"PublicDescription": "KLMD-SHA-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4181",
+		"EventName": "KLMD_SHA3_224",
+		"BriefDescription": "KLMD SHA3 224",
+		"PublicDescription": "KLMD-SHA3-224 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4182",
+		"EventName": "KLMD_SHA3_256",
+		"BriefDescription": "KLMD SHA3 256",
+		"PublicDescription": "KLMD-SHA3-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4183",
+		"EventName": "KLMD_SHA3_384",
+		"BriefDescription": "KLMD SHA3 384",
+		"PublicDescription": "KLMD-SHA3-384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4184",
+		"EventName": "KLMD_SHA3_512",
+		"BriefDescription": "KLMD SHA3 512",
+		"PublicDescription": "KLMD-SHA3-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4185",
+		"EventName": "KLMD_SHAKE_128",
+		"BriefDescription": "KLMD SHAKE 128",
+		"PublicDescription": "KLMD-SHAKE-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4186",
+		"EventName": "KLMD_SHAKE_256",
+		"BriefDescription": "KLMD SHAKE 256",
+		"PublicDescription": "KLMD-SHAKE-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4187",
+		"EventName": "KMAC_DEA",
+		"BriefDescription": "KMAC DEA",
+		"PublicDescription": "KMAC-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4188",
+		"EventName": "KMAC_TDEA_128",
+		"BriefDescription": "KMAC TDEA 128",
+		"PublicDescription": "KMAC-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4189",
+		"EventName": "KMAC_TDEA_192",
+		"BriefDescription": "KMAC TDEA 192",
+		"PublicDescription": "KMAC-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4190",
+		"EventName": "KMAC_ENCRYPTED_DEA",
+		"BriefDescription": "KMAC ENCRYPTED DEA",
+		"PublicDescription": "KMAC-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4191",
+		"EventName": "KMAC_ENCRYPTED_TDEA_128",
+		"BriefDescription": "KMAC ENCRYPTED TDEA 128",
+		"PublicDescription": "KMAC-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4192",
+		"EventName": "KMAC_ENCRYPTED_TDEA_192",
+		"BriefDescription": "KMAC ENCRYPTED TDEA 192",
+		"PublicDescription": "KMAC-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4193",
+		"EventName": "KMAC_AES_128",
+		"BriefDescription": "KMAC AES 128",
+		"PublicDescription": "KMAC-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4194",
+		"EventName": "KMAC_AES_192",
+		"BriefDescription": "KMAC AES 192",
+		"PublicDescription": "KMAC-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4195",
+		"EventName": "KMAC_AES_256",
+		"BriefDescription": "KMAC AES 256",
+		"PublicDescription": "KMAC-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4196",
+		"EventName": "KMAC_ENCRYPTED_AES_128",
+		"BriefDescription": "KMAC ENCRYPTED AES 128",
+		"PublicDescription": "KMAC-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4197",
+		"EventName": "KMAC_ENCRYPTED_AES_192",
+		"BriefDescription": "KMAC ENCRYPTED AES 192",
+		"PublicDescription": "KMAC-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4198",
+		"EventName": "KMAC_ENCRYPTED_AES_256",
+		"BriefDescription": "KMAC ENCRYPTED AES 256",
+		"PublicDescription": "KMAC-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4199",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_DEA",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING DEA",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4200",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_TDEA_128",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING TDEA 128",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4201",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_TDEA_192",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING TDEA 192",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4202",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_DEA",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED DEA",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-DEA function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4203",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_TDEA_128",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED TDEA 128",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4204",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_TDEA_192",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED TDEA 192",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4205",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_AES_128",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING AES 128",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4206",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_AES_192",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING AES 192",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4207",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_AES_256",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING AES 256",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4208",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_128",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 128",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4209",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_192",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 192",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-192 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4210",
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256A",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 256A",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-256A function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4211",
+		"EventName": "PCC_COMPUTE_XTS_PARAMETER_USING_AES_128",
+		"BriefDescription": "PCC COMPUTE XTS PARAMETER USING AES 128",
+		"PublicDescription": "PCC-Compute-XTS-Parameter-Using-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4212",
+		"EventName": "PCC_COMPUTE_XTS_PARAMETER_USING_AES_256",
+		"BriefDescription": "PCC COMPUTE XTS PARAMETER USING AES 256",
+		"PublicDescription": "PCC-Compute-XTS-Parameter-Using-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4213",
+		"EventName": "PCC_COMPUTE_XTS_PARAMETER_USING_ENCRYPTED_AES_128",
+		"BriefDescription": "PCC COMPUTE XTS PARAMETER USING ENCRYPTED AES 128",
+		"PublicDescription": "PCC-Compute-XTS-Parameter-Using-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4214",
+		"EventName": "PCC_COMPUTE_XTS_PARAMETER_USING_ENCRYPTED_AES_256",
+		"BriefDescription": "PCC COMPUTE XTS PARAMETER USING ENCRYPTED AES 256",
+		"PublicDescription": "PCC-Compute-XTS-Parameter-Using-Encrypted-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4215",
+		"EventName": "PCC_SCALAR_MULTIPLY_P256",
+		"BriefDescription": "PCC SCALAR MULTIPLY P256",
+		"PublicDescription": "PCC-Scalar-Multiply-P256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4216",
+		"EventName": "PCC_SCALAR_MULTIPLY_P384",
+		"BriefDescription": "PCC SCALAR MULTIPLY P384",
+		"PublicDescription": "PCC-Scalar-Multiply-P384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4217",
+		"EventName": "PCC_SCALAR_MULTIPLY_P521",
+		"BriefDescription": "PCC SCALAR MULTIPLY P521",
+		"PublicDescription": "PCC-Scalar-Multiply-P521 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4218",
+		"EventName": "PCC_SCALAR_MULTIPLY_ED25519",
+		"BriefDescription": "PCC SCALAR MULTIPLY ED25519",
+		"PublicDescription": "PCC-Scalar-Multiply-Ed25519 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4219",
+		"EventName": "PCC_SCALAR_MULTIPLY_ED448",
+		"BriefDescription": "PCC SCALAR MULTIPLY ED448",
+		"PublicDescription": "PCC-Scalar-Multiply-Ed448 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4220",
+		"EventName": "PCC_SCALAR_MULTIPLY_X25519",
+		"BriefDescription": "PCC SCALAR MULTIPLY X25519",
+		"PublicDescription": "PCC-Scalar-Multiply-X25519 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4221",
+		"EventName": "PCC_SCALAR_MULTIPLY_X448",
+		"BriefDescription": "PCC SCALAR MULTIPLY X448",
+		"PublicDescription": "PCC-Scalar-Multiply-X448 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4222",
+		"EventName": "PRNO_SHA_512_DRNG",
+		"BriefDescription": "PRNO SHA 512 DRNG",
+		"PublicDescription": "PRNO-SHA-512-DRNG function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4223",
+		"EventName": "PRNO_TRNG_QUERY_RAW_TO_CONDITIONED_RATIO",
+		"BriefDescription": "PRNO TRNG QUERY RAW TO CONDITIONED RATIO",
+		"PublicDescription": "PRNO-TRNG-Query-Raw-to-Conditioned-Ratio function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4224",
+		"EventName": "PRNO_TRNG",
+		"BriefDescription": "PRNO TRNG",
+		"PublicDescription": "PRNO-TRNG function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4225",
+		"EventName": "KDSA_ECDSA_VERIFY_P256",
+		"BriefDescription": "KDSA ECDSA VERIFY P256",
+		"PublicDescription": "KDSA-ECDSA-Verify-P256 function ending with CC=0 or CC=2"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4226",
+		"EventName": "KDSA_ECDSA_VERIFY_P384",
+		"BriefDescription": "KDSA ECDSA VERIFY P384",
+		"PublicDescription": "KDSA-ECDSA-Verify-P384 function ending with CC=0 or CC=2"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4227",
+		"EventName": "KDSA_ECDSA_VERIFY_P521",
+		"BriefDescription": "KDSA ECDSA VERIFY P521",
+		"PublicDescription": "KDSA-ECDSA-Verify-P521 function ending with CC=0 or CC=2"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4228",
+		"EventName": "KDSA_ECDSA_SIGN_P256",
+		"BriefDescription": "KDSA ECDSA SIGN P256",
+		"PublicDescription": "KDSA-ECDSA-Sign-P256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4229",
+		"EventName": "KDSA_ECDSA_SIGN_P384",
+		"BriefDescription": "KDSA ECDSA SIGN P384",
+		"PublicDescription": "KDSA-ECDSA-Sign-P384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4230",
+		"EventName": "KDSA_ECDSA_SIGN_P521",
+		"BriefDescription": "KDSA ECDSA SIGN P521",
+		"PublicDescription": "KDSA-ECDSA-Sign-P521 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4231",
+		"EventName": "KDSA_ENCRYPTED_ECDSA_SIGN_P256",
+		"BriefDescription": "KDSA ENCRYPTED ECDSA SIGN P256",
+		"PublicDescription": "KDSA-Encrypted-ECDSA-Sign-P256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4232",
+		"EventName": "KDSA_ENCRYPTED_ECDSA_SIGN_P384",
+		"BriefDescription": "KDSA ENCRYPTED ECDSA SIGN P384",
+		"PublicDescription": "KDSA-Encrypted-ECDSA-Sign-P384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4233",
+		"EventName": "KDSA_ENCRYPTED_ECDSA_SIGN_P521",
+		"BriefDescription": "KDSA ENCRYPTED ECDSA SIGN P521",
+		"PublicDescription": "KDSA-Encrypted-ECDSA-Sign-P521 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4234",
+		"EventName": "KDSA_EDDSA_VERIFY_ED25519",
+		"BriefDescription": "KDSA EDDSA VERIFY ED25519",
+		"PublicDescription": "KDSA-EdDSA-Verify-Ed25519 function ending with CC=0 or CC=2"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4235",
+		"EventName": "KDSA_EDDSA_VERIFY_ED448",
+		"BriefDescription": "KDSA EDDSA VERIFY ED448",
+		"PublicDescription": "KDSA-EdDSA-Verify-Ed448 function ending with CC=0 or CC=2"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4236",
+		"EventName": "KDSA_EDDSA_SIGN_ED25519",
+		"BriefDescription": "KDSA EDDSA SIGN ED25519",
+		"PublicDescription": "KDSA-EdDSA-Sign-Ed25519 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4237",
+		"EventName": "KDSA_EDDSA_SIGN_ED448",
+		"BriefDescription": "KDSA EDDSA SIGN ED448",
+		"PublicDescription": "KDSA-EdDSA-Sign-Ed448 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4238",
+		"EventName": "KDSA_ENCRYPTED_EDDSA_SIGN_ED25519",
+		"BriefDescription": "KDSA ENCRYPTED EDDSA SIGN ED25519",
+		"PublicDescription": "KDSA-Encrypted-EdDSA-Sign-Ed25519 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4239",
+		"EventName": "KDSA_ENCRYPTED_EDDSA_SIGN_ED448",
+		"BriefDescription": "KDSA ENCRYPTED EDDSA SIGN ED448",
+		"PublicDescription": "KDSA-Encrypted-EdDSA-Sign-Ed448 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4240",
+		"EventName": "PCKMO_ENCRYPT_DEA_KEY",
+		"BriefDescription": "PCKMO ENCRYPT DEA KEY",
+		"PublicDescription": "PCKMO-Encrypt-DEA-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4241",
+		"EventName": "PCKMO_ENCRYPT_TDEA_128_KEY",
+		"BriefDescription": "PCKMO ENCRYPT TDEA 128 KEY",
+		"PublicDescription": "PCKMO-Encrypt-TDEA-128-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4242",
+		"EventName": "PCKMO_ENCRYPT_TDEA_192_KEY",
+		"BriefDescription": "PCKMO ENCRYPT TDEA 192 KEY",
+		"PublicDescription": "PCKMO-Encrypt-TDEA-192-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4243",
+		"EventName": "PCKMO_ENCRYPT_AES_128_KEY",
+		"BriefDescription": "PCKMO ENCRYPT AES 128 KEY",
+		"PublicDescription": "PCKMO-Encrypt-AES-128-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4244",
+		"EventName": "PCKMO_ENCRYPT_AES_192_KEY",
+		"BriefDescription": "PCKMO ENCRYPT AES 192 KEY",
+		"PublicDescription": "PCKMO-Encrypt-AES-192-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4245",
+		"EventName": "PCKMO_ENCRYPT_AES_256_KEY",
+		"BriefDescription": "PCKMO ENCRYPT AES 256 KEY",
+		"PublicDescription": "PCKMO-Encrypt-AES-256-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4246",
+		"EventName": "PCKMO_ENCRYPT_ECC_P256_KEY",
+		"BriefDescription": "PCKMO ENCRYPT ECC P256 KEY",
+		"PublicDescription": "PCKMO-Encrypt-ECC-P256-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4247",
+		"EventName": "PCKMO_ENCRYPT_ECC_P384_KEY",
+		"BriefDescription": "PCKMO ENCRYPT ECC P384 KEY",
+		"PublicDescription": "PCKMO-Encrypt-ECC-P384-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4248",
+		"EventName": "PCKMO_ENCRYPT_ECC_P521_KEY",
+		"BriefDescription": "PCKMO ENCRYPT ECC P521 KEY",
+		"PublicDescription": "PCKMO-Encrypt-ECC-P521-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4249",
+		"EventName": "PCKMO_ENCRYPT_ECC_ED25519_KEY",
+		"BriefDescription": "PCKMO ENCRYPT ECC ED25519 KEY",
+		"PublicDescription": "PCKMO-Encrypt-ECC-Ed25519-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4250",
+		"EventName": "PCKMO_ENCRYPT_ECC_ED448_KEY",
+		"BriefDescription": "PCKMO ENCRYPT ECC ED448 KEY",
+		"PublicDescription": "PCKMO-Encrypt-ECC-Ed448-key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4251",
+		"EventName": "IBM_RESERVED_155",
+		"BriefDescription": "IBM RESERVED_155",
+		"PublicDescription": "Reserved for IBM use"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4252",
+		"EventName": "IBM_RESERVED_156",
+		"BriefDescription": "IBM RESERVED_156",
+		"PublicDescription": "Reserved for IBM use"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4253",
+		"EventName": "KM_FULL_XTS_AES_128",
+		"BriefDescription": "KM FULL XTS AES 128",
+		"PublicDescription": "KM-Full-XTS-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4254",
+		"EventName": "KM_FULL_XTS_AES_256",
+		"BriefDescription": "KM FULL XTS AES 256",
+		"PublicDescription": "KM-Full-XTS-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4255",
+		"EventName": "KM_FULL_XTS_ENCRYPTED_AES_128",
+		"BriefDescription": "KM FULL XTS ENCRYPTED AES 128",
+		"PublicDescription": "KM-Full-XTS-Encrypted-AES-128 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4256",
+		"EventName": "KM_FULL_XTS_ENCRYPTED_AES_256",
+		"BriefDescription": "KM FULL XTS ENCRYPTED AES 256",
+		"PublicDescription": "KM-FULL-XTS-ENCRYPTED-AES-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4257",
+		"EventName": "KMAC_HMAC_SHA_224",
+		"BriefDescription": "KMAC HMAC SHA 224",
+		"PublicDescription": "KMAC-HMAC-SHA-224 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4258",
+		"EventName": "KMAC_HMAC_SHA_256",
+		"BriefDescription": "KMAC HMAC SHA 256",
+		"PublicDescription": "KMAC-HMAC-SHA-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4259",
+		"EventName": "KMAC_HMAC_SHA_384",
+		"BriefDescription": "KMAC HMAC SHA 384",
+		"PublicDescription": "KMAC-HMAC-SHA-384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4260",
+		"EventName": "KMAC_HMAC_SHA_512",
+		"BriefDescription": "KMAC HMAC SHA 512",
+		"PublicDescription": "KMAC-HMAC-SHA-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4261",
+		"EventName": "KMAC_HMAC_ENCRYPTED_SHA_224",
+		"BriefDescription": "KMAC HMAC ENCRYPTED SHA 224",
+		"PublicDescription": "KMAC-HMAC-Encrypted-SHA-224 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4262",
+		"EventName": "KMAC_HMAC_ENCRYPTED_SHA_256",
+		"BriefDescription": "KMAC HMAC ENCRYPTED SHA 256",
+		"PublicDescription": "KMAC-HMAC-Encrypted-SHA-256 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4263",
+		"EventName": "KMAC_HMAC_ENCRYPTED_SHA_384",
+		"BriefDescription": "KMAC HMAC ENCRYPTED SHA 384",
+		"PublicDescription": "KMAC-HMAC-Encrypted-SHA-384 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4264",
+		"EventName": "KMAC_HMAC_ENCRYPTED_SHA_512",
+		"BriefDescription": "KMAC HMAC ENCRYPTED SHA 512",
+		"PublicDescription": "KMAC-HMAC-Encrypted-SHA-512 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4265",
+		"EventName": "PCKMO_ENCRYPT_HMAC_512_KEY",
+		"BriefDescription": "PCKMO ENCRYPT HMAC 512 KEY",
+		"PublicDescription": "PCKMO-Encrypt-HMAC-512-Key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4266",
+		"EventName": "PCKMO_ENCRYPT_HMAC_1024_KEY",
+		"BriefDescription": "PCKMO ENCRYPT HMAC 1024 KEY",
+		"PublicDescription": "PCKMO-Encrypt-HMAC-1024-Key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4267",
+		"EventName": "PCKMO_ENCRYPT_AES_XTS_128",
+		"BriefDescription": "PCKMO ENCRYPT AES XTS Double Key 128",
+		"PublicDescription": "PCKMO-ENCRYPT-AES-XTS-128 Double Key function"
+	},
+	{
+		"Unit": "PAI-CRYPTO",
+		"EventCode": "4268",
+		"EventName": "PCKMO_ENCRYPT_AES_XTS_256",
+		"BriefDescription": "PCKMO ENCRYPT AES XTS Double Key 256",
+		"PublicDescription": "PCKMO-ENCRYPT-AES-XTS-256 Double Key function"
+	}
+]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/pai_ext.json b/tools/perf/pmu-events/arch/s390/cf_z17/pai_ext.json
new file mode 100644
index 000000000000..935e9f5763b4
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/pai_ext.json
@@ -0,0 +1,261 @@
+[
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6144",
+		"EventName": "NNPA_ALL",
+		"BriefDescription": "NNPA ALL",
+		"PublicDescription": "Sums of all non zero NNPA counters"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6145",
+		"EventName": "NNPA_ADD",
+		"BriefDescription": "NNPA ADD function",
+		"PublicDescription": "NNPA-ADD function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6146",
+		"EventName": "NNPA_SUB",
+		"BriefDescription": "NNPA SUB function",
+		"PublicDescription": "NNPA-SUB function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6147",
+		"EventName": "NNPA_MUL",
+		"BriefDescription": "NNPA MUL function",
+		"PublicDescription": "NNPA-MUL function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6148",
+		"EventName": "NNPA_DIV",
+		"BriefDescription": "NNPA_DIV function",
+		"PublicDescription": "NNPA-DIV function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6149",
+		"EventName": "NNPA_MIN",
+		"BriefDescription": "NNPA MIN function",
+		"PublicDescription": "NNPA-MIN function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6150",
+		"EventName": "NNPA_MAX",
+		"BriefDescription": "NNPA MAX function",
+		"PublicDescription": "NNPA-MAX function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6151",
+		"EventName": "NNPA_LOG",
+		"BriefDescription": "NNPA LOG function",
+		"PublicDescription": "NNPA Log function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6152",
+		"EventName": "NNPA_EXP",
+		"BriefDescription": "NNPA EXP function",
+		"PublicDescription": "NNPA-EXP function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6153",
+		"EventName": "NNPA_IBM_RESERVED_9",
+		"BriefDescription": "Reserved for IBM use",
+		"PublicDescription": "Reserved for IBM use"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6154",
+		"EventName": "NNPA_RELU",
+		"BriefDescription": "NNPA RELU function",
+		"PublicDescription": "NNPA-RELU function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6155",
+		"EventName": "NNPA_TANH",
+		"BriefDescription": "NNPA TANH function",
+		"PublicDescription": "NNPA-TANH function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6156",
+		"EventName": "NNPA_SIGMOID",
+		"BriefDescription": "NNPA SIGMOID function",
+		"PublicDescription": "NNPA-SIGMOID function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6157",
+		"EventName": "NNPA_SOFTMAX",
+		"BriefDescription": "NNPA SOFTMAX function",
+		"PublicDescription": "NNPA-SOFTMAX function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6158",
+		"EventName": "NNPA_BATCHNORM",
+		"BriefDescription": "NNPA BATCHNORM function",
+		"PublicDescription": "NNPA-BATCHNORM function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6159",
+		"EventName": "NNPA_MAXPOOL2D",
+		"BriefDescription": "NNPA MAXPOOL2D function",
+		"PublicDescription": "NNPA-MAXPOOL2D function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6160",
+		"EventName": "NNPA_AVGPOOL2D",
+		"BriefDescription": "NNPA_AVGPOOL2D function",
+		"PublicDescription": "NNPA-AVGPOOL2D function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6161",
+		"EventName": "NNPA_LSTMACT",
+		"BriefDescription": "NNPA LSTMACT function",
+		"PublicDescription": "NNPA-LSTMACT function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6162",
+		"EventName": "NNPA_GRUACT",
+		"BriefDescription": "NNPA GRUACT function",
+		"PublicDescription": "NNPA-GRUACT function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6163",
+		"EventName": "NNPA_CONVOLUTION",
+		"BriefDescription": "NNPA CONVOLUTION function",
+		"PublicDescription": "NNPA-CONVOLUTION function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6164",
+		"EventName": "NNPA_MATMUL_OP",
+		"BriefDescription": "NNPA MATMUL OP function",
+		"PublicDescription": "NNPA-MATMUL-OP function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6165",
+		"EventName": "NNPA_MATMUL_OP_BCAST23",
+		"BriefDescription": "NNPA MATMUL OP BCAST23 function",
+		"PublicDescription": "NNPA-MATMUL-OP-BCAST23 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6166",
+		"EventName": "NNPA_SMALLBATCH",
+		"BriefDescription": "NNPA Counter 22",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6167",
+		"EventName": "NNPA_LARGEDIM",
+		"BriefDescription": "NNPA Counter 23",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6168",
+		"EventName": "NNPA_SMALLTENSOR",
+		"BriefDescription": "NNPA Counter 24",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6169",
+		"EventName": "NNPA_1MFRAME",
+		"BriefDescription": "NNPA Counter 25",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6170",
+		"EventName": "NNPA_2GFRAME",
+		"BriefDescription": "NNPA Counter 26",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6171",
+		"EventName": "NNPA_ACCESSEXCEPT",
+		"BriefDescription": "NNPA Counter 27",
+		"PublicDescription": "NNPA function with conditions as described in Principles of Operation"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6172",
+		"EventName": "NNPA_TRANSFORM",
+		"BriefDescription": "NNPA-TRANSFORM function",
+		"PublicDescription": "NNPA-TRANSFORM function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6173",
+		"EventName": "NNPA_GELU",
+		"BriefDescription": "NNPA-GELU function",
+		"PublicDescription": "NNPA-GELU function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6174",
+		"EventName": "NNPA_MOMENTS",
+		"BriefDescription": "NNPA-MOMENTS function",
+		"PublicDescription": "NNPA-MOMENTS function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6175",
+		"EventName": "NNPA_LAYERNORM",
+		"BriefDescription": "NNPA-LAYERNORM function",
+		"PublicDescription": "NNPA-LAYERNORM function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6176",
+		"EventName": "NNPA_MATMUL_OP_BCAST1",
+		"BriefDescription": "NNPA-MATMUL_OP_BCAST1 function",
+		"PublicDescription": "NNPA-MATMUL-OP-BCAST1 function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6177",
+		"EventName": "NNPA_SQRT",
+		"BriefDescription": "NNPA-SQRT function",
+		"PublicDescription": "NNPA-SQRT function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6178",
+		"EventName": "NNPA_INVSQRT",
+		"BriefDescription": "NNPA-INVSQRT function",
+		"PublicDescription": "NNPA-INVSQRT function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6179",
+		"EventName": "NNPA_NORM",
+		"BriefDescription": "NNPA-NORM function",
+		"PublicDescription": "NNPA-NORM function ending with CC=0"
+	},
+	{
+		"Unit": "PAI-EXT",
+		"EventCode": "6180",
+		"EventName": "NNPA_REDUCE",
+		"BriefDescription": "NNPA-REDUCE function",
+		"PublicDescription": "NNPA-REDUCE function ending with CC=0"
+	}
+]
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z17/transaction.json
new file mode 100644
index 000000000000..74df533c8b6f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/transaction.json
@@ -0,0 +1,72 @@
+[
+  {
+    "BriefDescription": "Transaction count",
+    "MetricName": "transaction",
+    "MetricExpr": "TX_C_TEND + TX_NC_TEND + TX_NC_TABORT + TX_C_TABORT_SPECIAL + TX_C_TABORT_NO_SPECIAL if has_event(TX_C_TEND) else 0"
+  },
+  {
+    "BriefDescription": "Cycles per Instruction",
+    "MetricName": "cpi",
+    "MetricExpr": "CPU_CYCLES / INSTRUCTIONS if has_event(INSTRUCTIONS) else 0"
+  },
+  {
+    "BriefDescription": "Problem State Instruction Ratio",
+    "MetricName": "prbstate",
+    "MetricExpr": "(PROBLEM_STATE_INSTRUCTIONS / INSTRUCTIONS) * 100 if has_event(INSTRUCTIONS) else 0"
+  },
+  {
+    "BriefDescription": "Level One Miss per 100 Instructions",
+    "MetricName": "l1mp",
+    "MetricExpr": "((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100 if has_event(INSTRUCTIONS) else 0"
+  },
+  {
+    "BriefDescription": "Percentage sourced from Level 2 cache",
+    "MetricName": "l2p",
+    "MetricExpr": "((DCW_REQ + DCW_REQ_IV + ICW_REQ + ICW_REQ_IV) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100 if has_event(DCW_REQ) else 0"
+  },
+  {
+    "BriefDescription": "Percentage sourced from Level 3 on same chip cache",
+    "MetricName": "l3p",
+    "MetricExpr": "((DCW_REQ_CHIP_HIT + DCW_ON_CHIP + DCW_ON_CHIP_IV + DCW_ON_CHIP_CHIP_HIT + ICW_REQ_CHIP_HIT + ICW_ON_CHIP + ICW_ON_CHIP_IV + ICW_ON_CHIP_CHIP_HIT) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100 if has_event(DCW_REQ_CHIP_HIT) else 0"
+  },
+  {
+    "BriefDescription": "Percentage sourced from Level 4 Local cache on same drawer",
+    "MetricName": "l4lp",
+    "MetricExpr": "((DCW_REQ_DRAWER_HIT + DCW_ON_CHIP_DRAWER_HIT + DCW_ON_MODULE + DCW_ON_DRAWER + IDCW_ON_MODULE_IV + IDCW_ON_MODULE_CHIP_HIT + IDCW_ON_MODULE_DRAWER_HIT + IDCW_ON_DRAWER_IV + IDCW_ON_DRAWER_CHIP_HIT + IDCW_ON_DRAWER_DRAWER_HIT + ICW_REQ_DRAWER_HIT + ICW_ON_CHIP_DRAWER_HIT + ICW_ON_MODULE + ICW_ON_DRAWER) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100 if has_event(DCW_REQ_DRAWER_HIT) else 0"
+  },
+  {
+    "BriefDescription": "Percentage sourced from Level 4 Remote cache on different book",
+    "MetricName": "l4rp",
+    "MetricExpr": "((DCW_OFF_DRAWER + IDCW_OFF_DRAWER_IV + IDCW_OFF_DRAWER_CHIP_HIT + IDCW_OFF_DRAWER_DRAWER_HIT + ICW_OFF_DRAWER) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100 if has_event(DCW_OFF_DRAWER) else 0"
+  },
+  {
+    "BriefDescription": "Percentage sourced from memory",
+    "MetricName": "memp",
+    "MetricExpr": "((DCW_ON_CHIP_MEMORY + DCW_ON_MODULE_MEMORY + DCW_ON_DRAWER_MEMORY + DCW_OFF_DRAWER_MEMORY) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100 if has_event(DCW_ON_CHIP_MEMORY) else 0"
+  },
+  {
+    "BriefDescription": "Cycles per Instructions from Finite cache/memory",
+    "MetricName": "finite_cpi",
+    "MetricExpr": "L1C_TLB2_MISSES / INSTRUCTIONS if has_event(L1C_TLB2_MISSES) else 0"
+  },
+  {
+    "BriefDescription": "Estimated Instruction Complexity CPI infinite Level 1",
+    "MetricName": "est_cpi",
+    "MetricExpr": "(CPU_CYCLES / INSTRUCTIONS) - (L1C_TLB2_MISSES / INSTRUCTIONS) if has_event(INSTRUCTIONS) else 0"
+  },
+  {
+    "BriefDescription": "Estimated Sourcing Cycles per Level 1 Miss",
+    "MetricName": "scpl1m",
+    "MetricExpr": "L1C_TLB2_MISSES / (L1I_DIR_WRITES + L1D_DIR_WRITES) if has_event(L1C_TLB2_MISSES) else 0"
+  },
+  {
+    "BriefDescription": "Estimated TLB CPU percentage of Total CPU",
+    "MetricName": "tlb_percent",
+    "MetricExpr": "((DTLB2_MISSES + ITLB2_MISSES) / CPU_CYCLES) * (L1C_TLB2_MISSES / (L1I_PENALTY_CYCLES + L1D_PENALTY_CYCLES)) * 100 if has_event(CPU_CYCLES) else 0"
+  },
+  {
+    "BriefDescription": "Estimated Cycles per TLB Miss",
+    "MetricName": "tlb_miss",
+    "MetricExpr": "((DTLB2_MISSES + ITLB2_MISSES) / (DTLB2_WRITES + ITLB2_WRITES)) * (L1C_TLB2_MISSES / (L1I_PENALTY_CYCLES + L1D_PENALTY_CYCLES)) if has_event(DTLB2_MISSES) else 0"
+  }
+]
diff --git a/tools/perf/pmu-events/arch/s390/mapfile.csv b/tools/perf/pmu-events/arch/s390/mapfile.csv
index b22648d12751..6fdede50e7b2 100644
--- a/tools/perf/pmu-events/arch/s390/mapfile.csv
+++ b/tools/perf/pmu-events/arch/s390/mapfile.csv
@@ -6,3 +6,4 @@ Family-model,Version,Filename,EventType
 ^IBM.390[67].*[13]\.[1-5].[[:xdigit:]]+$,3,cf_z14,core
 ^IBM.856[12].*3\.6.[[:xdigit:]]+$,3,cf_z15,core
 ^IBM.393[12].*$,3,cf_z16,core
+^IBM.917[56].*$,3,cf_z17,core

From d4ae1620c6209661ced9244d058f3582d1847dca Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 2 Jul 2025 10:54:02 -0700
Subject: [PATCH 076/179] perf genelf: Fix NO_LIBDW=1 build
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

With NO_LIBDW=1 a new unused-parameter warning/error has appeared:
```
util/genelf.c: In function ‘jit_write_elf’:
util/genelf.c:163:32: error: unused parameter ‘load_addr’ [-Werror=unused-parameter]
  163 | jit_write_elf(int fd, uint64_t load_addr, const char *sym,
```

Fixes: e3f612c1d8f3 ("perf genelf: Remove libcrypto dependency and use built-in sha1()")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250702175402.761818-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/genelf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c
index fcf86a27f69e..591548b10e34 100644
--- a/tools/perf/util/genelf.c
+++ b/tools/perf/util/genelf.c
@@ -160,7 +160,7 @@ jit_add_eh_frame_info(Elf *e, void* unwinding, uint64_t unwinding_header_size,
  * csize: the code size in bytes
  */
 int
-jit_write_elf(int fd, uint64_t load_addr, const char *sym,
+jit_write_elf(int fd, uint64_t load_addr __maybe_unused, const char *sym,
 	      const void *code, int csize,
 	      void *debug __maybe_unused, int nr_debug_entries __maybe_unused,
 	      void *unwinding, uint64_t unwinding_header_size, uint64_t unwinding_size)

From 63a088e999de3f431f87d9a367933da894ddb613 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 12:03:21 -0700
Subject: [PATCH 077/179] perf dso: Add missed dso__put to dso__load_kcore

The kcore loading creates a set of list nodes that have reference
counted references to maps of the kcore. The list node freeing in the
success path wasn't releasing the maps, add the missing puts. It is
unclear why this leak was being missed by leak sanitizer.

Fixes: 83720209961f ("perf map: Move map list node into symbol")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/symbol.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 73dab94fab74..ae0bd568ac45 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1422,6 +1422,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
 				goto out_err;
 			}
 		}
+		map__zput(new_node->map);
 		free(new_node);
 	}
 

From 7a8557fc4aa12cffc97e5c8a1b8b8fd0275464b2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 12:03:22 -0700
Subject: [PATCH 078/179] perf test code-reading: Avoid a leak of cpus and
 threads

The perf_evlist__set_maps does the necessary gets on the arguments
passed, so the reference count bumping isn't necessary and creates a
memory leak.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/code-reading.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index cf6edbe697b2..6efb6b4bbcce 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -749,13 +749,6 @@ static int do_test_code_reading(bool try_kcore)
 				pr_debug("perf_evlist__open() failed!\n%s\n", errbuf);
 			}
 
-			/*
-			 * Both cpus and threads are now owned by evlist
-			 * and will be freed by following perf_evlist__set_maps
-			 * call. Getting reference to keep them alive.
-			 */
-			perf_cpu_map__get(cpus);
-			perf_thread_map__get(threads);
 			perf_evlist__set_maps(&evlist->core, NULL, NULL);
 			evlist__delete(evlist);
 			evlist = NULL;

From d1f18106778b4d1af5ca6bde191e05e075c7e697 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 12:03:23 -0700
Subject: [PATCH 079/179] perf hwmon_pmu: Hold path rather than fd

Hold the path to the hwmon_pmu rather than the file descriptor. The
file descriptor is somewhat problematic in that it reflects the
directory state when opened, something that may vary in testing. Using
a path simplifies testing and to some extent cleanup as the hwmon_pmu
is owned by the pmus list and intentionally global and leaked when
perf terminates, the file descriptor being left open looks like a
leak.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/hwmon_pmu.c | 11 ++++++-----
 tools/perf/util/hwmon_pmu.c  | 38 ++++++++++++++++++++++++++----------
 tools/perf/util/hwmon_pmu.h  |  4 ++--
 tools/perf/util/pmus.c       |  2 +-
 tools/perf/util/pmus.h       |  2 +-
 5 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/tools/perf/tests/hwmon_pmu.c b/tools/perf/tests/hwmon_pmu.c
index 0837aca1cdfa..151f02701c8c 100644
--- a/tools/perf/tests/hwmon_pmu.c
+++ b/tools/perf/tests/hwmon_pmu.c
@@ -93,9 +93,10 @@ static struct perf_pmu *test_pmu_get(char *dir, size_t sz)
 		pr_err("Failed to mkdir hwmon directory\n");
 		goto err_out;
 	}
-	hwmon_dirfd = openat(test_dirfd, "hwmon1234", O_DIRECTORY);
+	strncat(dir, "/hwmon1234", sz - strlen(dir));
+	hwmon_dirfd = open(dir, O_PATH|O_DIRECTORY);
 	if (hwmon_dirfd < 0) {
-		pr_err("Failed to open test hwmon directory \"%s/hwmon1234\"\n", dir);
+		pr_err("Failed to open test hwmon directory \"%s\"\n", dir);
 		goto err_out;
 	}
 	file = openat(hwmon_dirfd, "name", O_WRONLY | O_CREAT, 0600);
@@ -130,18 +131,18 @@ static struct perf_pmu *test_pmu_get(char *dir, size_t sz)
 	}
 
 	/* Make the PMU reading the files created above. */
-	hwm = perf_pmus__add_test_hwmon_pmu(hwmon_dirfd, "hwmon1234", test_hwmon_name);
+	hwm = perf_pmus__add_test_hwmon_pmu(dir, "hwmon1234", test_hwmon_name);
 	if (!hwm)
 		pr_err("Test hwmon creation failed\n");
 
 err_out:
 	if (!hwm) {
 		test_pmu_put(dir, hwm);
-		if (hwmon_dirfd >= 0)
-			close(hwmon_dirfd);
 	}
 	if (test_dirfd >= 0)
 		close(test_dirfd);
+	if (hwmon_dirfd >= 0)
+		close(hwmon_dirfd);
 	return hwm;
 }
 
diff --git a/tools/perf/util/hwmon_pmu.c b/tools/perf/util/hwmon_pmu.c
index c25e7296f1c1..7edda010ba27 100644
--- a/tools/perf/util/hwmon_pmu.c
+++ b/tools/perf/util/hwmon_pmu.c
@@ -104,7 +104,7 @@ static const char *const hwmon_units[HWMON_TYPE_MAX] = {
 struct hwmon_pmu {
 	struct perf_pmu pmu;
 	struct hashmap events;
-	int hwmon_dir_fd;
+	char *hwmon_dir;
 };
 
 /**
@@ -245,7 +245,7 @@ static int hwmon_pmu__read_events(struct hwmon_pmu *pmu)
 		return 0;
 
 	/* Use openat so that the directory contents are refreshed. */
-	io_dir__init(&dir, openat(pmu->hwmon_dir_fd, ".", O_CLOEXEC | O_DIRECTORY | O_RDONLY));
+	io_dir__init(&dir, open(pmu->hwmon_dir, O_CLOEXEC | O_DIRECTORY | O_RDONLY));
 
 	if (dir.dirfd < 0)
 		return -ENOENT;
@@ -283,7 +283,7 @@ static int hwmon_pmu__read_events(struct hwmon_pmu *pmu)
 		__set_bit(item, alarm ? value->alarm_items : value->items);
 		if (item == HWMON_ITEM_LABEL) {
 			char buf[128];
-			int fd = openat(pmu->hwmon_dir_fd, ent->d_name, O_RDONLY);
+			int fd = openat(dir.dirfd, ent->d_name, O_RDONLY);
 			ssize_t read_len;
 
 			if (fd < 0)
@@ -342,7 +342,8 @@ static int hwmon_pmu__read_events(struct hwmon_pmu *pmu)
 	return err;
 }
 
-struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, int hwmon_dir, const char *sysfs_name, const char *name)
+struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, const char *hwmon_dir,
+				const char *sysfs_name, const char *name)
 {
 	char buf[32];
 	struct hwmon_pmu *hwm;
@@ -365,7 +366,11 @@ struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, int hwmon_dir, const cha
 		return NULL;
 	}
 
-	hwm->hwmon_dir_fd = hwmon_dir;
+	hwm->hwmon_dir = strdup(hwmon_dir);
+	if (!hwm->hwmon_dir) {
+		perf_pmu__delete(&hwm->pmu);
+		return NULL;
+	}
 	hwm->pmu.alias_name = strdup(sysfs_name);
 	if (!hwm->pmu.alias_name) {
 		perf_pmu__delete(&hwm->pmu);
@@ -399,7 +404,7 @@ void hwmon_pmu__exit(struct perf_pmu *pmu)
 		free(value);
 	}
 	hashmap__clear(&hwm->events);
-	close(hwm->hwmon_dir_fd);
+	zfree(&hwm->hwmon_dir);
 }
 
 static size_t hwmon_pmu__describe_items(struct hwmon_pmu *hwm, char *out_buf, size_t out_buf_len,
@@ -409,6 +414,10 @@ static size_t hwmon_pmu__describe_items(struct hwmon_pmu *hwm, char *out_buf, si
 	size_t bit;
 	char buf[64];
 	size_t len = 0;
+	int dir = open(hwm->hwmon_dir, O_CLOEXEC | O_DIRECTORY | O_RDONLY);
+
+	if (dir < 0)
+		return 0;
 
 	for_each_set_bit(bit, items, HWMON_ITEM__MAX) {
 		int fd;
@@ -421,7 +430,7 @@ static size_t hwmon_pmu__describe_items(struct hwmon_pmu *hwm, char *out_buf, si
 			key.num,
 			hwmon_item_strs[bit],
 			is_alarm ? "_alarm" : "");
-		fd = openat(hwm->hwmon_dir_fd, buf, O_RDONLY);
+		fd = openat(dir, buf, O_RDONLY);
 		if (fd > 0) {
 			ssize_t read_len = read(fd, buf, sizeof(buf));
 
@@ -443,6 +452,7 @@ static size_t hwmon_pmu__describe_items(struct hwmon_pmu *hwm, char *out_buf, si
 			close(fd);
 		}
 	}
+	close(dir);
 	return len;
 }
 
@@ -712,6 +722,7 @@ int perf_pmus__read_hwmon_pmus(struct list_head *pmus)
 		size_t line_len;
 		int hwmon_dir, name_fd;
 		struct io io;
+		char buf2[128];
 
 		if (class_hwmon_ent->d_type != DT_LNK)
 			continue;
@@ -730,12 +741,13 @@ int perf_pmus__read_hwmon_pmus(struct list_head *pmus)
 			close(hwmon_dir);
 			continue;
 		}
-		io__init(&io, name_fd, buf, sizeof(buf));
+		io__init(&io, name_fd, buf2, sizeof(buf2));
 		io__getline(&io, &line, &line_len);
 		if (line_len > 0 && line[line_len - 1] == '\n')
 			line[line_len - 1] = '\0';
-		hwmon_pmu__new(pmus, hwmon_dir, class_hwmon_ent->d_name, line);
+		hwmon_pmu__new(pmus, buf, class_hwmon_ent->d_name, line);
 		close(name_fd);
+		close(hwmon_dir);
 	}
 	free(line);
 	close(class_hwmon_dir.dirfd);
@@ -753,6 +765,10 @@ int evsel__hwmon_pmu_open(struct evsel *evsel,
 		.type_and_num = evsel->core.attr.config,
 	};
 	int idx = 0, thread = 0, nthreads, err = 0;
+	int dir = open(hwm->hwmon_dir, O_CLOEXEC | O_DIRECTORY | O_RDONLY);
+
+	if (dir < 0)
+		return -errno;
 
 	nthreads = perf_thread_map__nr(threads);
 	for (idx = start_cpu_map_idx; idx < end_cpu_map_idx; idx++) {
@@ -763,7 +779,7 @@ int evsel__hwmon_pmu_open(struct evsel *evsel,
 			snprintf(buf, sizeof(buf), "%s%d_input",
 				 hwmon_type_strs[key.type], key.num);
 
-			fd = openat(hwm->hwmon_dir_fd, buf, O_RDONLY);
+			fd = openat(dir, buf, O_RDONLY);
 			FD(evsel, idx, thread) = fd;
 			if (fd < 0) {
 				err = -errno;
@@ -771,6 +787,7 @@ int evsel__hwmon_pmu_open(struct evsel *evsel,
 			}
 		}
 	}
+	close(dir);
 	return 0;
 out_close:
 	if (err)
@@ -784,6 +801,7 @@ int evsel__hwmon_pmu_open(struct evsel *evsel,
 		}
 		thread = nthreads;
 	} while (--idx >= 0);
+	close(dir);
 	return err;
 }
 
diff --git a/tools/perf/util/hwmon_pmu.h b/tools/perf/util/hwmon_pmu.h
index b3329774d2b2..dc711b289ff5 100644
--- a/tools/perf/util/hwmon_pmu.h
+++ b/tools/perf/util/hwmon_pmu.h
@@ -135,14 +135,14 @@ bool parse_hwmon_filename(const char *filename,
  * hwmon_pmu__new() - Allocate and construct a hwmon PMU.
  *
  * @pmus: The list of PMUs to be added to.
- * @hwmon_dir: An O_DIRECTORY file descriptor for a hwmon directory.
+ * @hwmon_dir: The path to a hwmon directory.
  * @sysfs_name: Name of the hwmon sysfs directory like hwmon0.
  * @name: The contents of the "name" file in the hwmon directory.
  *
  * Exposed for testing. Regular construction should happen via
  * perf_pmus__read_hwmon_pmus.
  */
-struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, int hwmon_dir,
+struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, const char *hwmon_dir,
 				const char *sysfs_name, const char *name);
 void hwmon_pmu__exit(struct perf_pmu *pmu);
 
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index 81c2ed689db2..409b909cfa02 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -861,7 +861,7 @@ struct perf_pmu *perf_pmus__add_test_pmu(int test_sysfs_dirfd, const char *name)
 	return perf_pmu__lookup(&other_pmus, test_sysfs_dirfd, name, /*eager_load=*/true);
 }
 
-struct perf_pmu *perf_pmus__add_test_hwmon_pmu(int hwmon_dir,
+struct perf_pmu *perf_pmus__add_test_hwmon_pmu(const char *hwmon_dir,
 					       const char *sysfs_name,
 					       const char *name)
 {
diff --git a/tools/perf/util/pmus.h b/tools/perf/util/pmus.h
index 33ecf765a92f..86842ee5f539 100644
--- a/tools/perf/util/pmus.h
+++ b/tools/perf/util/pmus.h
@@ -31,7 +31,7 @@ int perf_pmus__num_core_pmus(void);
 bool perf_pmus__supports_extended_type(void);
 
 struct perf_pmu *perf_pmus__add_test_pmu(int test_sysfs_dirfd, const char *name);
-struct perf_pmu *perf_pmus__add_test_hwmon_pmu(int hwmon_dir,
+struct perf_pmu *perf_pmus__add_test_hwmon_pmu(const char *hwmon_dir,
 					       const char *sysfs_name,
 					       const char *name);
 struct perf_pmu *perf_pmus__fake_pmu(void);

From e793e2c0f188fb7a7998224f14241c0d87df5249 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 12:03:24 -0700
Subject: [PATCH 080/179] perf dso: With ref count checking, avoid dso_data
 holding dso live

With the dso_data embedded in a dso there is a reference counted
pointer to the dso rather than using container_of with reference count
checking. This data can hold the dso live meaning that no dso__put
ever deletes it. Add a check for this case and close the dso_data when
it happens. There isn't an infinite loop as the dso_data clears the
file descriptor prior to putting on the dso.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/dso.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 057fcf4225ac..c6c1637e098c 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1612,6 +1612,10 @@ struct dso *dso__get(struct dso *dso)
 
 void dso__put(struct dso *dso)
 {
+#ifdef REFCNT_CHECKING
+	if (dso && dso__data(dso) && refcount_read(&RC_CHK_ACCESS(dso)->refcnt) == 2)
+		dso__data_close(dso);
+#endif
 	if (dso && refcount_dec_and_test(&RC_CHK_ACCESS(dso)->refcnt))
 		dso__delete(dso);
 	else

From e9846f5ead26d2ed2eea0987e3991a667fc38d22 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 24 Jun 2025 12:03:25 -0700
Subject: [PATCH 081/179] perf test: In forked mode add check that fds aren't
 leaked

When a test is forked no file descriptors should be open, however,
parent ones may have been inherited - in particular those of the pipes
of other forked child test processes. Add a loop to clean-up/close
those file descriptors prior to running the test. At the end of the
test assert that no additional file descriptors are present as this
would indicate a file descriptor leak.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/builtin-test.c | 69 +++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index e242d56523ce..85142dfb3e01 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -4,6 +4,7 @@
  *
  * Builtin regression testing command: ever growing number of sanity tests
  */
+#include <ctype.h>
 #include <fcntl.h>
 #include <errno.h>
 #ifdef HAVE_BACKTRACE_SUPPORT
@@ -159,6 +160,71 @@ static struct test_workload *workloads[] = {
 #define test_suite__for_each_test_case(suite, idx)			\
 	for (idx = 0; (suite)->test_cases && (suite)->test_cases[idx].name != NULL; idx++)
 
+static void close_parent_fds(void)
+{
+	DIR *dir = opendir("/proc/self/fd");
+	struct dirent *ent;
+
+	while ((ent = readdir(dir))) {
+		char *end;
+		long fd;
+
+		if (ent->d_type != DT_LNK)
+			continue;
+
+		if (!isdigit(ent->d_name[0]))
+			continue;
+
+		fd = strtol(ent->d_name, &end, 10);
+		if (*end)
+			continue;
+
+		if (fd <= 3 || fd == dirfd(dir))
+			continue;
+
+		close(fd);
+	}
+	closedir(dir);
+}
+
+static void check_leaks(void)
+{
+	DIR *dir = opendir("/proc/self/fd");
+	struct dirent *ent;
+	int leaks = 0;
+
+	while ((ent = readdir(dir))) {
+		char path[PATH_MAX];
+		char *end;
+		long fd;
+		ssize_t len;
+
+		if (ent->d_type != DT_LNK)
+			continue;
+
+		if (!isdigit(ent->d_name[0]))
+			continue;
+
+		fd = strtol(ent->d_name, &end, 10);
+		if (*end)
+			continue;
+
+		if (fd <= 3 || fd == dirfd(dir))
+			continue;
+
+		leaks++;
+		len = readlinkat(dirfd(dir), ent->d_name, path, sizeof(path));
+		if (len > 0 && (size_t)len < sizeof(path))
+			path[len] = '\0';
+		else
+			strncpy(path, ent->d_name, sizeof(path));
+		pr_err("Leak of file descriptor %s that opened: '%s'\n", ent->d_name, path);
+	}
+	closedir(dir);
+	if (leaks)
+		abort();
+}
+
 static int test_suite__num_test_cases(const struct test_suite *t)
 {
 	int num;
@@ -256,6 +322,8 @@ static int run_test_child(struct child_process *process)
 	struct child_test *child = container_of(process, struct child_test, process);
 	int err;
 
+	close_parent_fds();
+
 	err = sigsetjmp(run_test_jmp_buf, 1);
 	if (err) {
 		/* Received signal. */
@@ -271,6 +339,7 @@ static int run_test_child(struct child_process *process)
 	err = test_function(child->test, child->test_case_num)(child->test, child->test_case_num);
 	pr_debug("---- end(%d) ----\n", err);
 
+	check_leaks();
 err_out:
 	fflush(NULL);
 	for (size_t i = 0; i < ARRAY_SIZE(signals); i++)

From 6c21316e52959f60e9367a41a7893d8459d7dfab Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 2 Jul 2025 21:20:00 -0700
Subject: [PATCH 082/179] perf header: Fix pipe mode header dumping

The pipe mode header dumping was accidentally removed when tracing of
header feature events in pipe mode was added.

Minor spelling tweak to header test failure message.

Fixes: 61051f9a8452 ("perf header: In pipe mode dump features without --header/-I")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250703042000.2740640-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/header.sh |  2 +-
 tools/perf/util/header.c         | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/header.sh b/tools/perf/tests/shell/header.sh
index 412263de6ed7..e1628ac0a614 100755
--- a/tools/perf/tests/shell/header.sh
+++ b/tools/perf/tests/shell/header.sh
@@ -42,7 +42,7 @@ check_header_output() {
   do
     if ! grep -q -E "$i" "${script_output}"
     then
-      echo "Failed to find expect $i in output"
+      echo "Failed to find expected $i in output"
       err=1
     fi
   done
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 487f663ed2de..53d54fbda10d 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -4343,6 +4343,7 @@ int perf_event__process_feature(struct perf_session *session,
 	int type = fe->header.type;
 	u64 feat = fe->feat_id;
 	int ret = 0;
+	bool print = dump_trace;
 
 	if (type < 0 || type >= PERF_RECORD_HEADER_MAX) {
 		pr_warning("invalid record type %d in pipe-mode\n", type);
@@ -4362,8 +4363,20 @@ int perf_event__process_feature(struct perf_session *session,
 		goto out;
 	}
 
-	if (dump_trace) {
+	if (session->tool->show_feat_hdr) {
+		if (!feat_ops[feat].full_only ||
+		    session->tool->show_feat_hdr >= SHOW_FEAT_HEADER_FULL_INFO) {
+			print = true;
+		} else {
+			fprintf(stdout, "# %s info available, use -I to display\n",
+				feat_ops[feat].name);
+		}
+	}
+
+	if (dump_trace)
 		printf(", ");
+
+	if (print) {
 		if (feat_ops[feat].print)
 			feat_ops[feat].print(&ff, stdout);
 		else

From 8081ca8d6be8c4b08b5d2fa06b2129f00aa95451 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 2 Jul 2025 22:36:22 -0700
Subject: [PATCH 083/179] perf tests make: Add NO_LIBDW=1 to minimal and add
 standalone test

Missing testing coverage of NO_LIBDW=1 and add NO_LIBDW=1 to the
minimal test configuration.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703053622.3141424-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/make | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index e3651e5b195a..c574a678c28a 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -81,6 +81,7 @@ make_no_gtk2        := NO_GTK2=1
 make_no_ui          := NO_SLANG=1 NO_GTK2=1
 make_no_demangle    := NO_DEMANGLE=1
 make_no_libelf      := NO_LIBELF=1
+make_no_libdw       := NO_LIBDW=1
 make_libunwind      := LIBUNWIND=1
 make_no_libdw_dwarf_unwind := NO_LIBDW_DWARF_UNWIND=1
 make_no_backtrace   := NO_BACKTRACE=1
@@ -119,7 +120,7 @@ make_static         := LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX3
 # all the NO_* variable combined
 make_minimal        := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_GTK2=1
 make_minimal        += NO_DEMANGLE=1 NO_LIBELF=1 NO_BACKTRACE=1
-make_minimal        += NO_LIBNUMA=1 NO_LIBBIONIC=1
+make_minimal        += NO_LIBNUMA=1 NO_LIBBIONIC=1 NO_LIBDW=1
 make_minimal        += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1
 make_minimal        += NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
 make_minimal        += NO_LIBCAP=1 NO_CAPSTONE=1
@@ -150,6 +151,7 @@ run += make_no_gtk2
 run += make_no_ui
 run += make_no_demangle
 run += make_no_libelf
+run += make_no_libdw
 run += make_libunwind
 run += make_no_libdw_dwarf_unwind
 run += make_no_backtrace

From 10d9b89203765fb776512742c13af8dd92821842 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:35 -0700
Subject: [PATCH 084/179] perf sched: Make sure it frees the usage string

The parse_options_subcommand() allocates the usage string based on the
given subcommands.  So it should reach the end of the function to free
the string to prevent memory leaks.

Fixes: 1a5efc9e13f357ab ("libsubcmd: Don't free the usage string")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 26ece6e9bfd1..b7bbfad0ed60 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -3902,9 +3902,9 @@ int cmd_sched(int argc, const char **argv)
 	 * Aliased to 'perf script' for now:
 	 */
 	if (!strcmp(argv[0], "script")) {
-		return cmd_script(argc, argv);
+		ret = cmd_script(argc, argv);
 	} else if (strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
-		return __cmd_record(argc, argv);
+		ret = __cmd_record(argc, argv);
 	} else if (strlen(argv[0]) > 2 && strstarts("latency", argv[0])) {
 		sched.tp_handler = &lat_ops;
 		if (argc > 1) {
@@ -3913,7 +3913,7 @@ int cmd_sched(int argc, const char **argv)
 				usage_with_options(latency_usage, latency_options);
 		}
 		setup_sorting(&sched, latency_options, latency_usage);
-		return perf_sched__lat(&sched);
+		ret = perf_sched__lat(&sched);
 	} else if (!strcmp(argv[0], "map")) {
 		if (argc) {
 			argc = parse_options(argc, argv, map_options, map_usage, 0);
@@ -3924,13 +3924,14 @@ int cmd_sched(int argc, const char **argv)
 				sched.map.task_names = strlist__new(sched.map.task_name, NULL);
 				if (sched.map.task_names == NULL) {
 					fprintf(stderr, "Failed to parse task names\n");
-					return -1;
+					ret = -1;
+					goto out;
 				}
 			}
 		}
 		sched.tp_handler = &map_ops;
 		setup_sorting(&sched, latency_options, latency_usage);
-		return perf_sched__map(&sched);
+		ret = perf_sched__map(&sched);
 	} else if (strlen(argv[0]) > 2 && strstarts("replay", argv[0])) {
 		sched.tp_handler = &replay_ops;
 		if (argc) {
@@ -3938,7 +3939,7 @@ int cmd_sched(int argc, const char **argv)
 			if (argc)
 				usage_with_options(replay_usage, replay_options);
 		}
-		return perf_sched__replay(&sched);
+		ret = perf_sched__replay(&sched);
 	} else if (!strcmp(argv[0], "timehist")) {
 		if (argc) {
 			argc = parse_options(argc, argv, timehist_options,
@@ -3954,19 +3955,19 @@ int cmd_sched(int argc, const char **argv)
 				parse_options_usage(NULL, timehist_options, "w", true);
 			if (sched.show_next)
 				parse_options_usage(NULL, timehist_options, "n", true);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto out;
 		}
 		ret = symbol__validate_sym_arguments();
-		if (ret)
-			return ret;
-
-		return perf_sched__timehist(&sched);
+		if (!ret)
+			ret = perf_sched__timehist(&sched);
 	} else {
 		usage_with_options(sched_usage, sched_options);
 	}
 
+out:
 	/* free usage string allocated by parse_options_subcommand */
 	free((void *)sched_usage[0]);
 
-	return 0;
+	return ret;
 }

From aa9fdd106bab8c478d37eba5703c0950ad5c0d4f Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:36 -0700
Subject: [PATCH 085/179] perf sched: Free thread->priv using priv_destructor

In many perf sched subcommand saves priv data structure in the thread
but it forgot to free them.  As it's an opaque type with 'void *', it
needs to register that knows how to free the data.  In this case, just
regular 'free()' is fine.

Fixes: 04cb4fc4d40a5bf1 ("perf thread: Allow tools to register a thread->priv destructor")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-3-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index b7bbfad0ed60..fa4052e04020 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -3898,6 +3898,8 @@ int cmd_sched(int argc, const char **argv)
 	if (!argc)
 		usage_with_options(sched_usage, sched_options);
 
+	thread__set_priv_destructor(free);
+
 	/*
 	 * Aliased to 'perf script' for now:
 	 */

From dc3a80c98884d86389b3b572c50ccc7f502cd41b Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:37 -0700
Subject: [PATCH 086/179] perf sched: Fix memory leaks in 'perf sched map'

It maintains per-cpu pointers for the current thread but it doesn't
release the refcounts.

Fixes: 5e895278697c014e ("perf sched: Move curr_thread initialization to perf_sched__map()")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-4-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index fa4052e04020..b73989fb6ace 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1634,6 +1634,7 @@ static int map_switch_event(struct perf_sched *sched, struct evsel *evsel,
 	const char *color = PERF_COLOR_NORMAL;
 	char stimestamp[32];
 	const char *str;
+	int ret = -1;
 
 	BUG_ON(this_cpu.cpu >= MAX_CPUS || this_cpu.cpu < 0);
 
@@ -1664,17 +1665,20 @@ static int map_switch_event(struct perf_sched *sched, struct evsel *evsel,
 	sched_in = map__findnew_thread(sched, machine, -1, next_pid);
 	sched_out = map__findnew_thread(sched, machine, -1, prev_pid);
 	if (sched_in == NULL || sched_out == NULL)
-		return -1;
+		goto out;
 
 	tr = thread__get_runtime(sched_in);
-	if (tr == NULL) {
-		thread__put(sched_in);
-		return -1;
-	}
+	if (tr == NULL)
+		goto out;
+
+	thread__put(sched->curr_thread[this_cpu.cpu]);
+	thread__put(sched->curr_out_thread[this_cpu.cpu]);
 
 	sched->curr_thread[this_cpu.cpu] = thread__get(sched_in);
 	sched->curr_out_thread[this_cpu.cpu] = thread__get(sched_out);
 
+	ret = 0;
+
 	str = thread__comm_str(sched_in);
 	new_shortname = 0;
 	if (!tr->shortname[0]) {
@@ -1769,12 +1773,10 @@ static int map_switch_event(struct perf_sched *sched, struct evsel *evsel,
 	color_fprintf(stdout, color, "\n");
 
 out:
-	if (sched->map.task_name)
-		thread__put(sched_out);
-
+	thread__put(sched_out);
 	thread__put(sched_in);
 
-	return 0;
+	return ret;
 }
 
 static int process_sched_switch_event(const struct perf_tool *tool,
@@ -3556,10 +3558,10 @@ static int perf_sched__map(struct perf_sched *sched)
 
 	sched->curr_out_thread = calloc(MAX_CPUS, sizeof(*(sched->curr_out_thread)));
 	if (!sched->curr_out_thread)
-		return rc;
+		goto out_free_curr_thread;
 
 	if (setup_cpus_switch_event(sched))
-		goto out_free_curr_thread;
+		goto out_free_curr_out_thread;
 
 	if (setup_map_cpus(sched))
 		goto out_free_cpus_switch_event;
@@ -3590,7 +3592,14 @@ static int perf_sched__map(struct perf_sched *sched)
 out_free_cpus_switch_event:
 	free_cpus_switch_event(sched);
 
+out_free_curr_out_thread:
+	for (int i = 0; i < MAX_CPUS; i++)
+		thread__put(sched->curr_out_thread[i]);
+	zfree(&sched->curr_out_thread);
+
 out_free_curr_thread:
+	for (int i = 0; i < MAX_CPUS; i++)
+		thread__put(sched->curr_thread[i]);
 	zfree(&sched->curr_thread);
 	return rc;
 }

From e2eb59260c4f6bac403491d0112891766b8650d1 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:38 -0700
Subject: [PATCH 087/179] perf sched: Fix thread leaks in 'perf sched timehist'

Add missing thread__put() after machine__findnew_thread() or
timehist_get_thread().  Also idle threads' last_thread should be
refcounted properly.

Fixes: 699b5b920db04a6f ("perf sched timehist: Save callchain when entering idle")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-5-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 48 +++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index b73989fb6ace..83b5a85a91b7 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2313,8 +2313,10 @@ static void save_task_callchain(struct perf_sched *sched,
 		return;
 	}
 
-	if (!sched->show_callchain || sample->callchain == NULL)
+	if (!sched->show_callchain || sample->callchain == NULL) {
+		thread__put(thread);
 		return;
+	}
 
 	cursor = get_tls_callchain_cursor();
 
@@ -2323,10 +2325,12 @@ static void save_task_callchain(struct perf_sched *sched,
 		if (verbose > 0)
 			pr_err("Failed to resolve callchain. Skipping\n");
 
+		thread__put(thread);
 		return;
 	}
 
 	callchain_cursor_commit(cursor);
+	thread__put(thread);
 
 	while (true) {
 		struct callchain_cursor_node *node;
@@ -2403,8 +2407,17 @@ static void free_idle_threads(void)
 		return;
 
 	for (i = 0; i < idle_max_cpu; ++i) {
-		if ((idle_threads[i]))
-			thread__delete(idle_threads[i]);
+		struct thread *idle = idle_threads[i];
+
+		if (idle) {
+			struct idle_thread_runtime *itr;
+
+			itr = thread__priv(idle);
+			if (itr)
+				thread__put(itr->last_thread);
+
+			thread__delete(idle);
+		}
 	}
 
 	free(idle_threads);
@@ -2441,7 +2454,7 @@ static struct thread *get_idle_thread(int cpu)
 		}
 	}
 
-	return idle_threads[cpu];
+	return thread__get(idle_threads[cpu]);
 }
 
 static void save_idle_callchain(struct perf_sched *sched,
@@ -2496,7 +2509,8 @@ static struct thread *timehist_get_thread(struct perf_sched *sched,
 			if (itr == NULL)
 				return NULL;
 
-			itr->last_thread = thread;
+			thread__put(itr->last_thread);
+			itr->last_thread = thread__get(thread);
 
 			/* copy task callchain when entering to idle */
 			if (evsel__intval(evsel, sample, "next_pid") == 0)
@@ -2567,6 +2581,7 @@ static void timehist_print_wakeup_event(struct perf_sched *sched,
 	/* show wakeup unless both awakee and awaker are filtered */
 	if (timehist_skip_sample(sched, thread, evsel, sample) &&
 	    timehist_skip_sample(sched, awakened, evsel, sample)) {
+		thread__put(thread);
 		return;
 	}
 
@@ -2583,6 +2598,8 @@ static void timehist_print_wakeup_event(struct perf_sched *sched,
 	printf("awakened: %s", timehist_get_commstr(awakened));
 
 	printf("\n");
+
+	thread__put(thread);
 }
 
 static int timehist_sched_wakeup_ignore(const struct perf_tool *tool __maybe_unused,
@@ -2611,8 +2628,10 @@ static int timehist_sched_wakeup_event(const struct perf_tool *tool,
 		return -1;
 
 	tr = thread__get_runtime(thread);
-	if (tr == NULL)
+	if (tr == NULL) {
+		thread__put(thread);
 		return -1;
+	}
 
 	if (tr->ready_to_run == 0)
 		tr->ready_to_run = sample->time;
@@ -2622,6 +2641,7 @@ static int timehist_sched_wakeup_event(const struct perf_tool *tool,
 	    !perf_time__skip_sample(&sched->ptime, sample->time))
 		timehist_print_wakeup_event(sched, evsel, sample, machine, thread);
 
+	thread__put(thread);
 	return 0;
 }
 
@@ -2649,6 +2669,7 @@ static void timehist_print_migration_event(struct perf_sched *sched,
 
 	if (timehist_skip_sample(sched, thread, evsel, sample) &&
 	    timehist_skip_sample(sched, migrated, evsel, sample)) {
+		thread__put(thread);
 		return;
 	}
 
@@ -2676,6 +2697,7 @@ static void timehist_print_migration_event(struct perf_sched *sched,
 	printf(" cpu %d => %d", ocpu, dcpu);
 
 	printf("\n");
+	thread__put(thread);
 }
 
 static int timehist_migrate_task_event(const struct perf_tool *tool,
@@ -2695,8 +2717,10 @@ static int timehist_migrate_task_event(const struct perf_tool *tool,
 		return -1;
 
 	tr = thread__get_runtime(thread);
-	if (tr == NULL)
+	if (tr == NULL) {
+		thread__put(thread);
 		return -1;
+	}
 
 	tr->migrations++;
 	tr->migrated = sample->time;
@@ -2706,6 +2730,7 @@ static int timehist_migrate_task_event(const struct perf_tool *tool,
 		timehist_print_migration_event(sched, evsel, sample,
 							machine, thread);
 	}
+	thread__put(thread);
 
 	return 0;
 }
@@ -2728,10 +2753,10 @@ static void timehist_update_task_prio(struct evsel *evsel,
 		return;
 
 	tr = thread__get_runtime(thread);
-	if (tr == NULL)
-		return;
+	if (tr != NULL)
+		tr->prio = next_prio;
 
-	tr->prio = next_prio;
+	thread__put(thread);
 }
 
 static int timehist_sched_change_event(const struct perf_tool *tool,
@@ -2743,7 +2768,7 @@ static int timehist_sched_change_event(const struct perf_tool *tool,
 	struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
 	struct perf_time_interval *ptime = &sched->ptime;
 	struct addr_location al;
-	struct thread *thread;
+	struct thread *thread = NULL;
 	struct thread_runtime *tr = NULL;
 	u64 tprev, t = sample->time;
 	int rc = 0;
@@ -2867,6 +2892,7 @@ static int timehist_sched_change_event(const struct perf_tool *tool,
 
 	evsel__save_time(evsel, sample->time, sample->cpu);
 
+	thread__put(thread);
 	addr_location__exit(&al);
 	return rc;
 }

From 117e5c33b1c44037af016d77ce6c0b086d55535f Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:39 -0700
Subject: [PATCH 088/179] perf sched: Fix memory leaks for evsel->priv in
 timehist

It uses evsel->priv to save per-cpu timing information.  It should be
freed when the evsel is released.

Add the priv destructor for evsel same as thread to handle that.

Fixes: 49394a2a24c78ce0 ("perf sched timehist: Introduce timehist command")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-6-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 12 ++++++++++++
 tools/perf/util/evsel.c    | 11 +++++++++++
 tools/perf/util/evsel.h    |  2 ++
 3 files changed, 25 insertions(+)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 83b5a85a91b7..a6eb0462dd5b 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2020,6 +2020,16 @@ static u64 evsel__get_time(struct evsel *evsel, u32 cpu)
 	return r->last_time[cpu];
 }
 
+static void timehist__evsel_priv_destructor(void *priv)
+{
+	struct evsel_runtime *r = priv;
+
+	if (r) {
+		free(r->last_time);
+		free(r);
+	}
+}
+
 static int comm_width = 30;
 
 static char *timehist_get_commstr(struct thread *thread)
@@ -3314,6 +3324,8 @@ static int perf_sched__timehist(struct perf_sched *sched)
 
 	setup_pager();
 
+	evsel__set_priv_destructor(timehist__evsel_priv_destructor);
+
 	/* prefer sched_waking if it is captured */
 	if (evlist__find_tracepoint_by_name(session->evlist, "sched:sched_waking"))
 		handlers[1].handler = timehist_sched_wakeup_ignore;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 9c50c3960487..3896a04d90af 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1657,6 +1657,15 @@ static void evsel__free_config_terms(struct evsel *evsel)
 	free_config_terms(&evsel->config_terms);
 }
 
+static void (*evsel__priv_destructor)(void *priv);
+
+void evsel__set_priv_destructor(void (*destructor)(void *priv))
+{
+	assert(evsel__priv_destructor == NULL);
+
+	evsel__priv_destructor = destructor;
+}
+
 void evsel__exit(struct evsel *evsel)
 {
 	assert(list_empty(&evsel->core.node));
@@ -1687,6 +1696,8 @@ void evsel__exit(struct evsel *evsel)
 	hashmap__free(evsel->per_pkg_mask);
 	evsel->per_pkg_mask = NULL;
 	zfree(&evsel->metric_events);
+	if (evsel__priv_destructor)
+		evsel__priv_destructor(evsel->priv);
 	perf_evsel__object.fini(evsel);
 	if (evsel__tool_event(evsel) == TOOL_PMU__EVENT_SYSTEM_TIME ||
 	    evsel__tool_event(evsel) == TOOL_PMU__EVENT_USER_TIME)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6dbc9690e0c9..b84ee274602d 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -280,6 +280,8 @@ void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
 void evsel__exit(struct evsel *evsel);
 void evsel__delete(struct evsel *evsel);
 
+void evsel__set_priv_destructor(void (*destructor)(void *priv));
+
 struct callchain_param;
 
 void evsel__config(struct evsel *evsel, struct record_opts *opts,

From 7a4002ec9e0fced907179da94f67c3082d7b4162 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:40 -0700
Subject: [PATCH 089/179] perf sched: Use RC_CHK_EQUAL() to compare pointers

So that it can check two pointers to the same object properly when
REFCNT_CHECKING is on.

Fixes: 78c32f4cb12f9430 ("libperf rc_check: Add RC_CHK_EQUAL")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-7-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index a6eb0462dd5b..087d4eaba5f7 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -994,7 +994,7 @@ thread_atoms_search(struct rb_root_cached *root, struct thread *thread,
 		else if (cmp < 0)
 			node = node->rb_right;
 		else {
-			BUG_ON(thread != atoms->thread);
+			BUG_ON(!RC_CHK_EQUAL(thread, atoms->thread));
 			return atoms;
 		}
 	}

From e68b1c0098b959cb88afce5c93dd6a9324e6da78 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:41 -0700
Subject: [PATCH 090/179] perf sched: Fix memory leaks in 'perf sched latency'

The work_atoms should be freed after use.  Add free_work_atoms() to
make sure to release all.  It should use list_splice_init() when merging
atoms to prevent accessing invalid pointers.

Fixes: b1ffe8f3e0c96f552 ("perf sched: Finish latency => atom rename and misc cleanups")
Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-8-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 087d4eaba5f7..4bbebd6ef2e4 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1111,6 +1111,21 @@ add_sched_in_event(struct work_atoms *atoms, u64 timestamp)
 	atoms->nb_atoms++;
 }
 
+static void free_work_atoms(struct work_atoms *atoms)
+{
+	struct work_atom *atom, *tmp;
+
+	if (atoms == NULL)
+		return;
+
+	list_for_each_entry_safe(atom, tmp, &atoms->work_list, list) {
+		list_del(&atom->list);
+		free(atom);
+	}
+	thread__zput(atoms->thread);
+	free(atoms);
+}
+
 static int latency_switch_event(struct perf_sched *sched,
 				struct evsel *evsel,
 				struct perf_sample *sample,
@@ -3426,13 +3441,13 @@ static void __merge_work_atoms(struct rb_root_cached *root, struct work_atoms *d
 			this->total_runtime += data->total_runtime;
 			this->nb_atoms += data->nb_atoms;
 			this->total_lat += data->total_lat;
-			list_splice(&data->work_list, &this->work_list);
+			list_splice_init(&data->work_list, &this->work_list);
 			if (this->max_lat < data->max_lat) {
 				this->max_lat = data->max_lat;
 				this->max_lat_start = data->max_lat_start;
 				this->max_lat_end = data->max_lat_end;
 			}
-			zfree(&data);
+			free_work_atoms(data);
 			return;
 		}
 	}
@@ -3511,7 +3526,6 @@ static int perf_sched__lat(struct perf_sched *sched)
 		work_list = rb_entry(next, struct work_atoms, node);
 		output_lat_thread(sched, work_list);
 		next = rb_next(next);
-		thread__zput(work_list->thread);
 	}
 
 	printf(" -----------------------------------------------------------------------------------------------------------------\n");
@@ -3525,6 +3539,13 @@ static int perf_sched__lat(struct perf_sched *sched)
 
 	rc = 0;
 
+	while ((next = rb_first_cached(&sched->sorted_atom_root))) {
+		struct work_atoms *data;
+
+		data = rb_entry(next, struct work_atoms, node);
+		rb_erase_cached(next, &sched->sorted_atom_root);
+		free_work_atoms(data);
+	}
 out_free_cpus_switch_event:
 	free_cpus_switch_event(sched);
 	return rc;

From cc4b392718dcbf64301681f8a3daa8a013cf6427 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Wed, 2 Jul 2025 18:49:42 -0700
Subject: [PATCH 091/179] perf test: Add more test cases to sched test

  $ sudo ./perf test -vv 92
   92: perf sched tests:
  --- start ---
  test child forked, pid 1360101
  Sched record
  pid 1360105's current affinity list: 0-3
  pid 1360105's new affinity list: 0
  pid 1360107's current affinity list: 0-3
  pid 1360107's new affinity list: 0
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 4.330 MB /tmp/__perf_test_sched.perf.data.b3319 (12246 samples) ]
  Sched latency
  Sched script
  Sched map
  Sched timehist
  Samples of sched_switch event do not have callchains.
  ---- end(0) ----
   92: perf sched tests                                                : Ok

Reviewed-by: Ian Rogers <irogers@google.com>
Tested-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250703014942.1369397-9-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/sched.sh | 41 +++++++++++++++++++++++++--------
 1 file changed, 32 insertions(+), 9 deletions(-)

diff --git a/tools/perf/tests/shell/sched.sh b/tools/perf/tests/shell/sched.sh
index c030126d1a0c..b9b81eaf856e 100755
--- a/tools/perf/tests/shell/sched.sh
+++ b/tools/perf/tests/shell/sched.sh
@@ -56,38 +56,61 @@ cleanup_noploops() {
   kill "$PID1" "$PID2"
 }
 
-test_sched_latency() {
-  echo "Sched latency"
+test_sched_record() {
+  echo "Sched record"
 
   start_noploops
 
   perf sched record --no-inherit -o "${perfdata}" sleep 1
+
+  cleanup_noploops
+}
+
+test_sched_latency() {
+  echo "Sched latency"
+
   if ! perf sched latency -i "${perfdata}" | grep -q perf-noploop
   then
     echo "Sched latency [Failed missing output]"
     err=1
   fi
-
-  cleanup_noploops
 }
 
 test_sched_script() {
   echo "Sched script"
 
-  start_noploops
-
-  perf sched record --no-inherit -o "${perfdata}" sleep 1
   if ! perf sched script -i "${perfdata}" | grep -q perf-noploop
   then
     echo "Sched script [Failed missing output]"
     err=1
   fi
-
-  cleanup_noploops
 }
 
+test_sched_map() {
+  echo "Sched map"
+
+  if ! perf sched map -i "${perfdata}" | grep -q perf-noploop
+  then
+    echo "Sched map [Failed missing output]"
+    err=1
+  fi
+}
+
+test_sched_timehist() {
+  echo "Sched timehist"
+
+  if ! perf sched timehist -i "${perfdata}" | grep -q perf-noploop
+  then
+    echo "Sched timehist [Failed missing output]"
+    err=1
+  fi
+}
+
+test_sched_record
 test_sched_latency
 test_sched_script
+test_sched_map
+test_sched_timehist
 
 cleanup
 exit $err

From a292d5733c5e9c0febaf901295eacb13e2df636c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:46 -0700
Subject: [PATCH 092/179] perf vendor events: Update Alderlake events

Update events from v1.29 to v1.31.

Bring in the event updates v1.31:
https://github.com/intel/perfmon/commit/5a1269c8af70e32a548e74e1fda736189c398ddc
https://github.com/intel/perfmon/commit/76c6d2c348c067e9ae1b616b35ee982da6d873b4

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/x86/alderlake/cache.json  | 56 +++++++------------
 .../arch/x86/alderlake/floating-point.json    |  1 -
 .../pmu-events/arch/x86/alderlake/other.json  |  1 -
 .../arch/x86/alderlake/pipeline.json          | 44 ++-------------
 .../arch/x86/alderlake/virtual-memory.json    |  3 -
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 6 files changed, 28 insertions(+), 79 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/alderlake/cache.json b/tools/perf/pmu-events/arch/x86/alderlake/cache.json
index c2802fbb853b..5461576dafc7 100644
--- a/tools/perf/pmu-events/arch/x86/alderlake/cache.json
+++ b/tools/perf/pmu-events/arch/x86/alderlake/cache.json
@@ -728,7 +728,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.DRAM_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in DRAM. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x80",
         "Unit": "cpu_atom"
@@ -739,7 +738,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.HITM",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache, in which a snoop was required and modified data was forwarded from another core or module. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x20",
         "Unit": "cpu_atom"
@@ -750,7 +748,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L1_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L1 data cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x1",
         "Unit": "cpu_atom"
@@ -761,7 +758,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L1_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L1 data cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x8",
         "Unit": "cpu_atom"
@@ -772,7 +768,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L2_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L2 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x2",
         "Unit": "cpu_atom"
@@ -783,7 +778,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L2_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L2 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x10",
         "Unit": "cpu_atom"
@@ -794,7 +788,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L3_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x4",
         "Unit": "cpu_atom"
@@ -805,7 +798,6 @@
         "Data_LA": "1",
         "EventCode": "0xd2",
         "EventName": "MEM_LOAD_UOPS_RETIRED_MISC.HIT_E_F",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache, in which a snoop was required, and non-modified data was forwarded. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x40",
         "Unit": "cpu_atom"
@@ -816,7 +808,6 @@
         "Data_LA": "1",
         "EventCode": "0xd2",
         "EventName": "MEM_LOAD_UOPS_RETIRED_MISC.L3_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L3 cache. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x20",
         "Unit": "cpu_atom"
@@ -873,7 +864,7 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.ALL_LOADS",
-        "PublicDescription": "Counts the total number of load uops retired. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of load uops retired.",
         "SampleAfterValue": "200003",
         "UMask": "0x81",
         "Unit": "cpu_atom"
@@ -884,111 +875,111 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.ALL_STORES",
-        "PublicDescription": "Counts the total number of store uops retired. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of store uops retired.",
         "SampleAfterValue": "200003",
         "UMask": "0x82",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_128",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x80",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_16",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x10",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_256",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x100",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_32",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x20",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_4",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x4",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_512",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x200",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_64",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x40",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_8",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x8",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5",
         "Unit": "cpu_atom"
@@ -999,7 +990,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOCK_LOADS",
-        "PublicDescription": "Counts the number of load uops retired that performed one or more locks. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x21",
         "Unit": "cpu_atom"
@@ -1010,7 +1000,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.SPLIT_LOADS",
-        "PublicDescription": "Counts the number of retired split load uops. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x41",
         "Unit": "cpu_atom"
@@ -1021,7 +1010,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS",
-        "PublicDescription": "Counts the total number of load and store uops retired that missed in the second level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x13",
         "Unit": "cpu_atom"
@@ -1032,7 +1020,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS_LOADS",
-        "PublicDescription": "Counts the number of load ops retired that miss in the second Level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x11",
         "Unit": "cpu_atom"
@@ -1043,7 +1030,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS_STORES",
-        "PublicDescription": "Counts the number of store ops retired that miss in the second level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x12",
         "Unit": "cpu_atom"
@@ -1054,7 +1040,7 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STORE_LATENCY",
-        "PublicDescription": "Counts the number of stores uops retired. Counts with or without PEBS enabled. If PEBS is enabled and a PEBS record is generated, will populate PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of stores uops retired. Counts with or without PEBS enabled. If PEBS is enabled and a PEBS record is generated, will populate PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x6",
         "Unit": "cpu_atom"
@@ -1478,12 +1464,12 @@
         "Unit": "cpu_core"
     },
     {
-        "BriefDescription": "For every cycle where the core is waiting on at least 1 outstanding Demand RFO request, increments by 1.",
+        "BriefDescription": "Cycles with offcore outstanding demand rfo reads transactions in SuperQueue (SQ), queue to uncore.",
         "Counter": "0,1,2,3",
         "CounterMask": "1",
         "EventCode": "0x20",
         "EventName": "OFFCORE_REQUESTS_OUTSTANDING.CYCLES_WITH_DEMAND_RFO",
-        "PublicDescription": "OFFCORE_REQUESTS_OUTSTANDING.CYCLES_WITH_DEMAND_RFO Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of offcore outstanding demand rfo Reads transactions in the super queue every cycle. The 'Offcore outstanding' state of the transaction lasts from the L2 miss until the sending transaction completion to requestor (SQ deallocation). See the corresponding Umask under OFFCORE_REQUESTS. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x4",
         "Unit": "cpu_core"
diff --git a/tools/perf/pmu-events/arch/x86/alderlake/floating-point.json b/tools/perf/pmu-events/arch/x86/alderlake/floating-point.json
index ce570b96360a..d01f1b163ed8 100644
--- a/tools/perf/pmu-events/arch/x86/alderlake/floating-point.json
+++ b/tools/perf/pmu-events/arch/x86/alderlake/floating-point.json
@@ -213,7 +213,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.FPDIV",
-        "PublicDescription": "Counts the number of floating point divide uops retired (x87 and SSE, including x87 sqrt). Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x8",
         "Unit": "cpu_atom"
diff --git a/tools/perf/pmu-events/arch/x86/alderlake/other.json b/tools/perf/pmu-events/arch/x86/alderlake/other.json
index e4e75b088ccc..5f64138edfe4 100644
--- a/tools/perf/pmu-events/arch/x86/alderlake/other.json
+++ b/tools/perf/pmu-events/arch/x86/alderlake/other.json
@@ -55,7 +55,6 @@
         "Deprecated": "1",
         "EventCode": "0xe4",
         "EventName": "LBR_INSERTS.ANY",
-        "PublicDescription": "This event is deprecated. [This event is alias to MISC_RETIRED.LBR_INSERTS] Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x1",
         "Unit": "cpu_atom"
diff --git a/tools/perf/pmu-events/arch/x86/alderlake/pipeline.json b/tools/perf/pmu-events/arch/x86/alderlake/pipeline.json
index 7e0e33792c45..48ef2a8cc49a 100644
--- a/tools/perf/pmu-events/arch/x86/alderlake/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/alderlake/pipeline.json
@@ -128,7 +128,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
-        "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for.",
         "SampleAfterValue": "200003",
         "Unit": "cpu_atom"
     },
@@ -147,7 +147,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.NEAR_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf9",
         "Unit": "cpu_atom"
@@ -157,7 +156,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.COND",
-        "PublicDescription": "Counts the number of retired JCC (Jump on Conditional Code) branch instructions retired, includes both taken and not taken branches. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e",
         "Unit": "cpu_atom"
@@ -187,7 +185,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.COND_TAKEN",
-        "PublicDescription": "Counts the number of taken JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe",
         "Unit": "cpu_atom"
@@ -207,7 +204,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.FAR_BRANCH",
-        "PublicDescription": "Counts the number of far branch instructions retired, includes far jump, far call and return, and interrupt call and return. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xbf",
         "Unit": "cpu_atom"
@@ -227,7 +223,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT",
-        "PublicDescription": "Counts the number of near indirect JMP and near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb",
         "Unit": "cpu_atom"
@@ -247,7 +242,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT_CALL",
-        "PublicDescription": "Counts the number of near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb",
         "Unit": "cpu_atom"
@@ -258,7 +252,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.IND_CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.INDIRECT_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb",
         "Unit": "cpu_atom"
@@ -269,7 +262,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.COND Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e",
         "Unit": "cpu_atom"
@@ -279,7 +271,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_CALL",
-        "PublicDescription": "Counts the number of near CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf9",
         "Unit": "cpu_atom"
@@ -299,7 +290,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_RETURN",
-        "PublicDescription": "Counts the number of near RET branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7",
         "Unit": "cpu_atom"
@@ -319,7 +309,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_TAKEN",
-        "PublicDescription": "Counts the number of near taken branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xc0",
         "Unit": "cpu_atom"
@@ -340,7 +329,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NON_RETURN_IND",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.INDIRECT Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb",
         "Unit": "cpu_atom"
@@ -350,7 +338,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.REL_CALL",
-        "PublicDescription": "Counts the number of near relative CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfd",
         "Unit": "cpu_atom"
@@ -361,7 +348,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.RETURN",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.NEAR_RETURN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7",
         "Unit": "cpu_atom"
@@ -372,7 +358,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.TAKEN_JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.COND_TAKEN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe",
         "Unit": "cpu_atom"
@@ -382,7 +367,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
-        "PublicDescription": "Counts the total number of mispredicted branch instructions retired.  All branch type instructions are accounted for.  Prediction of the branch target address enables the processor to begin executing instructions before the non-speculative execution path is known. The branch prediction unit (BPU) predicts the target address based on the instruction pointer (IP) of the branch and on the execution path through which execution reached this IP.    A branch misprediction occurs when the prediction is wrong, and results in discarding all instructions executed in the speculative path and re-fetching from the correct path. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of mispredicted branch instructions retired.  All branch type instructions are accounted for.  Prediction of the branch target address enables the processor to begin executing instructions before the non-speculative execution path is known. The branch prediction unit (BPU) predicts the target address based on the instruction pointer (IP) of the branch and on the execution path through which execution reached this IP.    A branch misprediction occurs when the prediction is wrong, and results in discarding all instructions executed in the speculative path and re-fetching from the correct path.",
         "SampleAfterValue": "200003",
         "Unit": "cpu_atom"
     },
@@ -400,7 +385,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.COND",
-        "PublicDescription": "Counts the number of mispredicted JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e",
         "Unit": "cpu_atom"
@@ -430,7 +414,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.COND_TAKEN",
-        "PublicDescription": "Counts the number of mispredicted taken JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe",
         "Unit": "cpu_atom"
@@ -450,7 +433,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.INDIRECT",
-        "PublicDescription": "Counts the number of mispredicted near indirect JMP and near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb",
         "Unit": "cpu_atom"
@@ -470,7 +452,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.INDIRECT_CALL",
-        "PublicDescription": "Counts the number of mispredicted near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb",
         "Unit": "cpu_atom"
@@ -491,7 +472,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.IND_CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.INDIRECT_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb",
         "Unit": "cpu_atom"
@@ -502,7 +482,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.COND Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e",
         "Unit": "cpu_atom"
@@ -512,7 +491,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.NEAR_TAKEN",
-        "PublicDescription": "Counts the number of mispredicted near taken branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x80",
         "Unit": "cpu_atom"
@@ -533,7 +511,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.NON_RETURN_IND",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.INDIRECT Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb",
         "Unit": "cpu_atom"
@@ -553,7 +530,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.RETURN",
-        "PublicDescription": "Counts the number of mispredicted near RET branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7",
         "Unit": "cpu_atom"
@@ -564,7 +540,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.TAKEN_JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.COND_TAKEN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe",
         "Unit": "cpu_atom"
@@ -934,7 +909,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc0",
         "EventName": "INST_RETIRED.ANY_P",
-        "PublicDescription": "Counts the total number of instructions that retired. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. This event continues counting during hardware interrupts, traps, and inside interrupt handlers. This event uses a programmable general purpose performance counter. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of instructions that retired. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. This event continues counting during hardware interrupts, traps, and inside interrupt handlers. This event uses a programmable general purpose performance counter.",
         "SampleAfterValue": "2000003",
         "Unit": "cpu_atom"
     },
@@ -1126,7 +1101,6 @@
         "Deprecated": "1",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.4K_ALIAS",
-        "PublicDescription": "This event is deprecated. Refer to new event LD_BLOCKS.ADDRESS_ALIAS Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x4",
         "Unit": "cpu_atom"
@@ -1136,7 +1110,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.ADDRESS_ALIAS",
-        "PublicDescription": "Counts the number of retired loads that are blocked because it initially appears to be store forward blocked, but subsequently is shown not to be blocked based on 4K alias check. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x4",
         "Unit": "cpu_atom"
@@ -1156,7 +1129,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.DATA_UNKNOWN",
-        "PublicDescription": "Counts the number of retired loads that are blocked because its address exactly matches an older store whose data is not ready. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x1",
         "Unit": "cpu_atom"
@@ -1186,7 +1158,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
         "SampleAfterValue": "100003",
         "UMask": "0x1",
         "Unit": "cpu_core"
@@ -1306,7 +1278,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xe4",
         "EventName": "MISC_RETIRED.LBR_INSERTS",
-        "PublicDescription": "Counts the number of LBR entries recorded. Requires LBRs to be enabled in IA32_LBR_CTL. This event is PDIR on GP0 and NPEBS on all other GPs [This event is alias to LBR_INSERTS.ANY] Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of LBR entries recorded. Requires LBRs to be enabled in IA32_LBR_CTL. This event is PDIR on GP0 and NPEBS on all other GPs [This event is alias to LBR_INSERTS.ANY]",
         "SampleAfterValue": "1000003",
         "UMask": "0x1",
         "Unit": "cpu_atom"
@@ -1681,7 +1653,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "TOPDOWN_RETIRING.ALL",
-        "PublicDescription": "Counts the total number of consumed retirement slots. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "Unit": "cpu_atom"
     },
@@ -1933,7 +1904,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.ALL",
-        "PublicDescription": "Counts the total number of uops retired. Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "Unit": "cpu_atom"
     },
@@ -1963,7 +1933,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.IDIV",
-        "PublicDescription": "Counts the number of integer divide uops retired. Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x10",
         "Unit": "cpu_atom"
@@ -1973,7 +1942,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.MS",
-        "PublicDescription": "Counts the number of uops that are from complex flows issued by the Microcode Sequencer (MS). This includes uops from flows due to complex instructions, faults, assists, and inserted flows. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of uops that are from complex flows issued by the Microcode Sequencer (MS). This includes uops from flows due to complex instructions, faults, assists, and inserted flows.",
         "SampleAfterValue": "2000003",
         "UMask": "0x1",
         "Unit": "cpu_atom"
@@ -2030,7 +1999,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.X87",
-        "PublicDescription": "Counts the number of x87 uops retired, includes those in MS flows. Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x2",
         "Unit": "cpu_atom"
diff --git a/tools/perf/pmu-events/arch/x86/alderlake/virtual-memory.json b/tools/perf/pmu-events/arch/x86/alderlake/virtual-memory.json
index 3d15275eca61..ffbbd08acc68 100644
--- a/tools/perf/pmu-events/arch/x86/alderlake/virtual-memory.json
+++ b/tools/perf/pmu-events/arch/x86/alderlake/virtual-memory.json
@@ -266,7 +266,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x13",
         "Unit": "cpu_atom"
@@ -278,7 +277,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_LOADS",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS_LOADS Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x11",
         "Unit": "cpu_atom"
@@ -290,7 +288,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_STORES",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS_STORES Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x12",
         "Unit": "cpu_atom"
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index bde2f32423a1..35c5a4088356 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -1,5 +1,5 @@
 Family-model,Version,Filename,EventType
-GenuineIntel-6-(97|9A|B7|BA|BF),v1.29,alderlake,core
+GenuineIntel-6-(97|9A|B7|BA|BF),v1.31,alderlake,core
 GenuineIntel-6-BE,v1.29,alderlaken,core
 GenuineIntel-6-C[56],v1.08,arrowlake,core
 GenuineIntel-6-(1C|26|27|35|36),v5,bonnell,core

From e393a7b9202b0958dca0398732f4e38869a71668 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:47 -0700
Subject: [PATCH 093/179] perf vendor events: Update AlderlakeN events

Update events from v1.29 to v1.31.

Bring in the event updates v1.31:
https://github.com/intel/perfmon/commit/5a1269c8af70e32a548e74e1fda736189c398ddc
https://github.com/intel/perfmon/commit/76c6d2c348c067e9ae1b616b35ee982da6d873b4

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/x86/alderlaken/cache.json | 52 +++++++------------
 .../arch/x86/alderlaken/floating-point.json   |  1 -
 .../pmu-events/arch/x86/alderlaken/other.json |  1 -
 .../arch/x86/alderlaken/pipeline.json         | 42 ++-------------
 .../arch/x86/alderlaken/virtual-memory.json   |  3 --
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 6 files changed, 25 insertions(+), 76 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/cache.json b/tools/perf/pmu-events/arch/x86/alderlaken/cache.json
index bf691aee1ef4..669f4979b651 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/cache.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/cache.json
@@ -118,7 +118,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.DRAM_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in DRAM. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x80"
     },
@@ -128,7 +127,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.HITM",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache, in which a snoop was required and modified data was forwarded from another core or module. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x20"
     },
@@ -138,7 +136,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L1_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L1 data cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x1"
     },
@@ -148,7 +145,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L1_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L1 data cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x8"
     },
@@ -158,7 +154,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L2_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L2 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x2"
     },
@@ -168,7 +163,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L2_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L2 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x10"
     },
@@ -178,7 +172,6 @@
         "Data_LA": "1",
         "EventCode": "0xd1",
         "EventName": "MEM_LOAD_UOPS_RETIRED.L3_HIT",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x4"
     },
@@ -188,7 +181,6 @@
         "Data_LA": "1",
         "EventCode": "0xd2",
         "EventName": "MEM_LOAD_UOPS_RETIRED_MISC.HIT_E_F",
-        "PublicDescription": "Counts the number of load uops retired that hit in the L3 cache, in which a snoop was required, and non-modified data was forwarded. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x40"
     },
@@ -198,7 +190,6 @@
         "Data_LA": "1",
         "EventCode": "0xd2",
         "EventName": "MEM_LOAD_UOPS_RETIRED_MISC.L3_MISS",
-        "PublicDescription": "Counts the number of load uops retired that miss in the L3 cache. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x20"
     },
@@ -240,7 +231,7 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.ALL_LOADS",
-        "PublicDescription": "Counts the total number of load uops retired. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of load uops retired.",
         "SampleAfterValue": "200003",
         "UMask": "0x81"
     },
@@ -250,103 +241,103 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.ALL_STORES",
-        "PublicDescription": "Counts the total number of store uops retired. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of store uops retired.",
         "SampleAfterValue": "200003",
         "UMask": "0x82"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_128",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x80",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 128 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_16",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x10",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 16 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_256",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x100",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 256 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_32",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x20",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 32 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_4",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x4",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 4 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_512",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x200",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 512 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_64",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x40",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 64 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
     {
         "BriefDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled.",
-        "Counter": "0,1",
+        "Counter": "0,1,2,3,4,5",
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_8",
         "MSRIndex": "0x3F6",
         "MSRValue": "0x8",
-        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of tagged loads with an instruction latency that exceeds or equals the threshold of 8 cycles as defined in MEC_CR_PEBS_LD_LAT_THRESHOLD (3F6H). Only counts with PEBS enabled. If a PEBS record is generated, will populate the PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x5"
     },
@@ -356,7 +347,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.LOCK_LOADS",
-        "PublicDescription": "Counts the number of load uops retired that performed one or more locks. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x21"
     },
@@ -366,7 +356,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.SPLIT_LOADS",
-        "PublicDescription": "Counts the number of retired split load uops. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x41"
     },
@@ -376,7 +365,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS",
-        "PublicDescription": "Counts the total number of load and store uops retired that missed in the second level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x13"
     },
@@ -386,7 +374,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS_LOADS",
-        "PublicDescription": "Counts the number of load ops retired that miss in the second Level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x11"
     },
@@ -396,7 +383,6 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STLB_MISS_STORES",
-        "PublicDescription": "Counts the number of store ops retired that miss in the second level TLB. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x12"
     },
@@ -406,7 +392,7 @@
         "Data_LA": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.STORE_LATENCY",
-        "PublicDescription": "Counts the number of stores uops retired. Counts with or without PEBS enabled. If PEBS is enabled and a PEBS record is generated, will populate PEBS Latency and PEBS Data Source fields accordingly. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of stores uops retired. Counts with or without PEBS enabled. If PEBS is enabled and a PEBS record is generated, will populate PEBS Latency and PEBS Data Source fields accordingly.",
         "SampleAfterValue": "1000003",
         "UMask": "0x6"
     },
diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/floating-point.json b/tools/perf/pmu-events/arch/x86/alderlaken/floating-point.json
index f44da31ff1f1..ed963fcb6485 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/floating-point.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/floating-point.json
@@ -29,7 +29,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.FPDIV",
-        "PublicDescription": "Counts the number of floating point divide uops retired (x87 and SSE, including x87 sqrt). Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x8"
     }
diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/other.json b/tools/perf/pmu-events/arch/x86/alderlaken/other.json
index 8c2b5a284f2a..144d7b06f240 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/other.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/other.json
@@ -5,7 +5,6 @@
         "Deprecated": "1",
         "EventCode": "0xe4",
         "EventName": "LBR_INSERTS.ANY",
-        "PublicDescription": "This event is deprecated. [This event is alias to MISC_RETIRED.LBR_INSERTS] Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/pipeline.json b/tools/perf/pmu-events/arch/x86/alderlaken/pipeline.json
index 9616bf0e9f1f..1dd61baec1a9 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/pipeline.json
@@ -54,7 +54,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
-        "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for.",
         "SampleAfterValue": "200003"
     },
     {
@@ -63,7 +63,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.NEAR_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf9"
     },
@@ -72,7 +71,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.COND",
-        "PublicDescription": "Counts the number of retired JCC (Jump on Conditional Code) branch instructions retired, includes both taken and not taken branches. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e"
     },
@@ -81,7 +79,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.COND_TAKEN",
-        "PublicDescription": "Counts the number of taken JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe"
     },
@@ -90,7 +87,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.FAR_BRANCH",
-        "PublicDescription": "Counts the number of far branch instructions retired, includes far jump, far call and return, and interrupt call and return. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xbf"
     },
@@ -99,7 +95,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT",
-        "PublicDescription": "Counts the number of near indirect JMP and near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb"
     },
@@ -108,7 +103,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT_CALL",
-        "PublicDescription": "Counts the number of near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb"
     },
@@ -118,7 +112,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.IND_CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.INDIRECT_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb"
     },
@@ -128,7 +121,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.COND Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e"
     },
@@ -137,7 +129,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_CALL",
-        "PublicDescription": "Counts the number of near CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf9"
     },
@@ -146,7 +137,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_RETURN",
-        "PublicDescription": "Counts the number of near RET branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7"
     },
@@ -155,7 +145,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_TAKEN",
-        "PublicDescription": "Counts the number of near taken branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xc0"
     },
@@ -165,7 +154,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NON_RETURN_IND",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.INDIRECT Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb"
     },
@@ -174,7 +162,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.REL_CALL",
-        "PublicDescription": "Counts the number of near relative CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfd"
     },
@@ -184,7 +171,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.RETURN",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.NEAR_RETURN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7"
     },
@@ -194,7 +180,6 @@
         "Deprecated": "1",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.TAKEN_JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.COND_TAKEN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe"
     },
@@ -203,7 +188,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
-        "PublicDescription": "Counts the total number of mispredicted branch instructions retired.  All branch type instructions are accounted for.  Prediction of the branch target address enables the processor to begin executing instructions before the non-speculative execution path is known. The branch prediction unit (BPU) predicts the target address based on the instruction pointer (IP) of the branch and on the execution path through which execution reached this IP.    A branch misprediction occurs when the prediction is wrong, and results in discarding all instructions executed in the speculative path and re-fetching from the correct path. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of mispredicted branch instructions retired.  All branch type instructions are accounted for.  Prediction of the branch target address enables the processor to begin executing instructions before the non-speculative execution path is known. The branch prediction unit (BPU) predicts the target address based on the instruction pointer (IP) of the branch and on the execution path through which execution reached this IP.    A branch misprediction occurs when the prediction is wrong, and results in discarding all instructions executed in the speculative path and re-fetching from the correct path.",
         "SampleAfterValue": "200003"
     },
     {
@@ -211,7 +196,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.COND",
-        "PublicDescription": "Counts the number of mispredicted JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e"
     },
@@ -220,7 +204,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.COND_TAKEN",
-        "PublicDescription": "Counts the number of mispredicted taken JCC (Jump on Conditional Code) branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe"
     },
@@ -229,7 +212,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.INDIRECT",
-        "PublicDescription": "Counts the number of mispredicted near indirect JMP and near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb"
     },
@@ -238,7 +220,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.INDIRECT_CALL",
-        "PublicDescription": "Counts the number of mispredicted near indirect CALL branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb"
     },
@@ -248,7 +229,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.IND_CALL",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.INDIRECT_CALL Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfb"
     },
@@ -258,7 +238,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.COND Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x7e"
     },
@@ -267,7 +246,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.NEAR_TAKEN",
-        "PublicDescription": "Counts the number of mispredicted near taken branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x80"
     },
@@ -277,7 +255,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.NON_RETURN_IND",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.INDIRECT Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xeb"
     },
@@ -286,7 +263,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.RETURN",
-        "PublicDescription": "Counts the number of mispredicted near RET branch instructions retired. Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xf7"
     },
@@ -296,7 +272,6 @@
         "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "BR_MISP_RETIRED.TAKEN_JCC",
-        "PublicDescription": "This event is deprecated. Refer to new event BR_MISP_RETIRED.COND_TAKEN Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0xfe"
     },
@@ -371,7 +346,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc0",
         "EventName": "INST_RETIRED.ANY_P",
-        "PublicDescription": "Counts the total number of instructions that retired. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. This event continues counting during hardware interrupts, traps, and inside interrupt handlers. This event uses a programmable general purpose performance counter. Available PDIST counters: 0",
+        "PublicDescription": "Counts the total number of instructions that retired. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. This event continues counting during hardware interrupts, traps, and inside interrupt handlers. This event uses a programmable general purpose performance counter.",
         "SampleAfterValue": "2000003"
     },
     {
@@ -380,7 +355,6 @@
         "Deprecated": "1",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.4K_ALIAS",
-        "PublicDescription": "This event is deprecated. Refer to new event LD_BLOCKS.ADDRESS_ALIAS Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x4"
     },
@@ -389,7 +363,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.ADDRESS_ALIAS",
-        "PublicDescription": "Counts the number of retired loads that are blocked because it initially appears to be store forward blocked, but subsequently is shown not to be blocked based on 4K alias check. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x4"
     },
@@ -398,7 +371,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0x03",
         "EventName": "LD_BLOCKS.DATA_UNKNOWN",
-        "PublicDescription": "Counts the number of retired loads that are blocked because its address exactly matches an older store whose data is not ready. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
         "UMask": "0x1"
     },
@@ -448,7 +420,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xe4",
         "EventName": "MISC_RETIRED.LBR_INSERTS",
-        "PublicDescription": "Counts the number of LBR entries recorded. Requires LBRs to be enabled in IA32_LBR_CTL. This event is PDIR on GP0 and NPEBS on all other GPs [This event is alias to LBR_INSERTS.ANY] Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of LBR entries recorded. Requires LBRs to be enabled in IA32_LBR_CTL. This event is PDIR on GP0 and NPEBS on all other GPs [This event is alias to LBR_INSERTS.ANY]",
         "SampleAfterValue": "1000003",
         "UMask": "0x1"
     },
@@ -651,7 +623,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "TOPDOWN_RETIRING.ALL",
-        "PublicDescription": "Counts the total number of consumed retirement slots. Available PDIST counters: 0",
         "SampleAfterValue": "1000003"
     },
     {
@@ -667,7 +638,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.ALL",
-        "PublicDescription": "Counts the total number of uops retired. Available PDIST counters: 0",
         "SampleAfterValue": "2000003"
     },
     {
@@ -675,7 +645,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.IDIV",
-        "PublicDescription": "Counts the number of integer divide uops retired. Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x10"
     },
@@ -684,7 +653,7 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.MS",
-        "PublicDescription": "Counts the number of uops that are from complex flows issued by the Microcode Sequencer (MS). This includes uops from flows due to complex instructions, faults, assists, and inserted flows. Available PDIST counters: 0",
+        "PublicDescription": "Counts the number of uops that are from complex flows issued by the Microcode Sequencer (MS). This includes uops from flows due to complex instructions, faults, assists, and inserted flows.",
         "SampleAfterValue": "2000003",
         "UMask": "0x1"
     },
@@ -693,7 +662,6 @@
         "Counter": "0,1,2,3,4,5",
         "EventCode": "0xc2",
         "EventName": "UOPS_RETIRED.X87",
-        "PublicDescription": "Counts the number of x87 uops retired, includes those in MS flows. Available PDIST counters: 0",
         "SampleAfterValue": "2000003",
         "UMask": "0x2"
     }
diff --git a/tools/perf/pmu-events/arch/x86/alderlaken/virtual-memory.json b/tools/perf/pmu-events/arch/x86/alderlaken/virtual-memory.json
index c348046696bf..d9c737a17df0 100644
--- a/tools/perf/pmu-events/arch/x86/alderlaken/virtual-memory.json
+++ b/tools/perf/pmu-events/arch/x86/alderlaken/virtual-memory.json
@@ -57,7 +57,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x13"
     },
@@ -68,7 +67,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_LOADS",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS_LOADS Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x11"
     },
@@ -79,7 +77,6 @@
         "Deprecated": "1",
         "EventCode": "0xd0",
         "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_STORES",
-        "PublicDescription": "This event is deprecated. Refer to new event MEM_UOPS_RETIRED.STLB_MISS_STORES Available PDIST counters: 0",
         "SampleAfterValue": "200003",
         "UMask": "0x12"
     }
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 35c5a4088356..8a2ee64cad7e 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -1,6 +1,6 @@
 Family-model,Version,Filename,EventType
 GenuineIntel-6-(97|9A|B7|BA|BF),v1.31,alderlake,core
-GenuineIntel-6-BE,v1.29,alderlaken,core
+GenuineIntel-6-BE,v1.31,alderlaken,core
 GenuineIntel-6-C[56],v1.08,arrowlake,core
 GenuineIntel-6-(1C|26|27|35|36),v5,bonnell,core
 GenuineIntel-6-(3D|47),v30,broadwell,core

From e7c38d634cad1c71220767375c6e276de72c2dbf Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:48 -0700
Subject: [PATCH 094/179] perf vendor events: Update Arrowlake events

Update events from v1.08 to v1.09.

Bring in the event updates v1.09:
https://github.com/intel/perfmon/commit/cf3be6daf0a751ad270b67890dfdb2261dfc75da

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/x86/arrowlake/cache.json  |  13 +-
 .../arch/x86/arrowlake/frontend.json          | 135 ++++++++++++++++++
 tools/perf/pmu-events/arch/x86/mapfile.csv    |   2 +-
 3 files changed, 148 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/arrowlake/cache.json b/tools/perf/pmu-events/arch/x86/arrowlake/cache.json
index 70175404540d..91929d8bcf47 100644
--- a/tools/perf/pmu-events/arch/x86/arrowlake/cache.json
+++ b/tools/perf/pmu-events/arch/x86/arrowlake/cache.json
@@ -237,7 +237,7 @@
         "Unit": "cpu_lowpower"
     },
     {
-        "BriefDescription": "Counts the number of L2 Cache Accesses that miss the L2 and get BBL reject  short and long rejects (includes those counted in L2_reject_XQ.any), per core event",
+        "BriefDescription": "Counts the number of L2 Cache Accesses that miss the L2 and get BBL reject  short and long rejects, per core event",
         "Counter": "0,1,2,3,4,5,6,7",
         "EventCode": "0x24",
         "EventName": "L2_REQUEST.REJECTS",
@@ -728,6 +728,17 @@
         "EventName": "MEM_LOAD_RETIRED.L1_HIT",
         "PublicDescription": "Counts retired load instructions with at least one uop that hit in the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
+        "UMask": "0x101",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts retired load instructions with at least one uop that hit in the Level 0 of the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source.",
+        "Counter": "0,1,2,3",
+        "Data_LA": "1",
+        "EventCode": "0xd1",
+        "EventName": "MEM_LOAD_RETIRED.L1_HIT_L0",
+        "PublicDescription": "Counts retired load instructions with at least one uop that hit in the Level 0 of the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source. Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
         "UMask": "0x1",
         "Unit": "cpu_core"
     },
diff --git a/tools/perf/pmu-events/arch/x86/arrowlake/frontend.json b/tools/perf/pmu-events/arch/x86/arrowlake/frontend.json
index 67cc83de18d3..56cf1ec63200 100644
--- a/tools/perf/pmu-events/arch/x86/arrowlake/frontend.json
+++ b/tools/perf/pmu-events/arch/x86/arrowlake/frontend.json
@@ -58,6 +58,22 @@
         "UMask": "0x2",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged with having preceded with frontend bound behavior",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ALL",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged with having preceded with frontend bound behavior",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ALL",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_lowpower"
+    },
     {
         "BriefDescription": "Retired ANT branches",
         "Counter": "0,1,2,3,4,5,6,7,8,9",
@@ -82,6 +98,80 @@
         "UMask": "0x3",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a baclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_DETECT",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a baclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_DETECT",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_lowpower"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles /empty issue slots due to a btclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_RESTEER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles /empty issue slots due to a btclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_RESTEER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40",
+        "Unit": "cpu_lowpower"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.CISC",
+        "PublicDescription": "Counts the number of  instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.CISC",
+        "PublicDescription": "Counts the number of  instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_lowpower"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged every cycle the decoder is unable to send 4 uops",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.DECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged every cycle the decoder is unable to send 3 uops per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.DECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_lowpower"
+    },
     {
         "BriefDescription": "Retired Instructions who experienced a critical DSB miss.",
         "Counter": "0,1,2,3,4,5,6,7,8,9",
@@ -103,6 +193,15 @@
         "UMask": "0x20",
         "Unit": "cpu_atom"
     },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to icache miss",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ICACHE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20",
+        "Unit": "cpu_lowpower"
+    },
     {
         "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to ITLB miss",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -301,6 +400,42 @@
         "UMask": "0x3",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instruction retired tagged after a wasted issue slot if none of the previous events occurred",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.OTHER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x80",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired tagged after a wasted issue slot if none of the previous events occurred",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.OTHER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x80",
+        "Unit": "cpu_lowpower"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a predecode wrong",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.PREDECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a predecode wrong.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.PREDECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_lowpower"
+    },
     {
         "BriefDescription": "Retired Instructions who experienced STLB (2nd level TLB) true miss.",
         "Counter": "0,1,2,3,4,5,6,7,8,9",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 8a2ee64cad7e..b2db2bb658ce 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -1,7 +1,7 @@
 Family-model,Version,Filename,EventType
 GenuineIntel-6-(97|9A|B7|BA|BF),v1.31,alderlake,core
 GenuineIntel-6-BE,v1.31,alderlaken,core
-GenuineIntel-6-C[56],v1.08,arrowlake,core
+GenuineIntel-6-C[56],v1.09,arrowlake,core
 GenuineIntel-6-(1C|26|27|35|36),v5,bonnell,core
 GenuineIntel-6-(3D|47),v30,broadwell,core
 GenuineIntel-6-56,v12,broadwellde,core

From 73a33656896f87962c47462ff8ebda03d9094e0a Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:49 -0700
Subject: [PATCH 095/179] perf vendor events: Update CascadelakeX events

Update events from v1.23 to v1.25.

Bring in the event updates v1.25:
https://github.com/intel/perfmon/commit/86f146e15626b0fd3b032cab4538cafaaf2d0635
https://github.com/intel/perfmon/commit/fef03ffc333ae44d1e9d695b4e67e5bbb4429729

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/x86/cascadelakex/floating-point.json    | 6 +++---
 tools/perf/pmu-events/arch/x86/cascadelakex/pipeline.json   | 2 +-
 tools/perf/pmu-events/arch/x86/mapfile.csv                  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/cascadelakex/floating-point.json b/tools/perf/pmu-events/arch/x86/cascadelakex/floating-point.json
index 1c709983b65f..3ef6f00f1135 100644
--- a/tools/perf/pmu-events/arch/x86/cascadelakex/floating-point.json
+++ b/tools/perf/pmu-events/arch/x86/cascadelakex/floating-point.json
@@ -111,7 +111,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0xCF",
         "EventName": "FP_ARITH_INST_RETIRED2.128BIT_PACKED_BF16",
-        "PublicDescription": "Counts once for each Intel AVX-512 computational 512-bit packed BFloat16 floating-point instruction retired. Applies to the ZMM based VDPBF16PS instruction.  Each count represents 64 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
+        "PublicDescription": "Counts once for each Intel AVX-512 computational 128-bit packed BFloat16 floating-point instruction retired. Applies to the XMM based VDPBF16PS instruction. Each count represents 16 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
         "SampleAfterValue": "2000003",
         "UMask": "0x20"
     },
@@ -120,7 +120,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0xCF",
         "EventName": "FP_ARITH_INST_RETIRED2.256BIT_PACKED_BF16",
-        "PublicDescription": "Counts once for each Intel AVX-512 computational 128-bit packed BFloat16 floating-point instruction retired. Applies to the XMM based VDPBF16PS instruction. Each count represents 16 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
+        "PublicDescription": "Counts once for each Intel AVX-512 computational 256-bit packed BFloat16 floating-point instruction retired. Applies to the YMM based VDPBF16PS instruction.  Each count represents 32 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
         "SampleAfterValue": "2000003",
         "UMask": "0x40"
     },
@@ -129,7 +129,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0xCF",
         "EventName": "FP_ARITH_INST_RETIRED2.512BIT_PACKED_BF16",
-        "PublicDescription": "Counts once for each Intel AVX-512 computational 256-bit packed BFloat16 floating-point instruction retired. Applies to the YMM based VDPBF16PS instruction.  Each count represents 32 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
+        "PublicDescription": "Counts once for each Intel AVX-512 computational 512-bit packed BFloat16 floating-point instruction retired. Applies to the ZMM based VDPBF16PS instruction.  Each count represents 64 computation operations. This event is only supported on products formerly named Cooper Lake and is not supported on products formerly named Cascade Lake.",
         "SampleAfterValue": "2000003",
         "UMask": "0x80"
     },
diff --git a/tools/perf/pmu-events/arch/x86/cascadelakex/pipeline.json b/tools/perf/pmu-events/arch/x86/cascadelakex/pipeline.json
index 3dd296ab4d78..9a1349527b66 100644
--- a/tools/perf/pmu-events/arch/x86/cascadelakex/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/cascadelakex/pipeline.json
@@ -542,7 +542,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4C",
         "EventName": "LOAD_HIT_PRE.SW_PF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index b2db2bb658ce..9a60e95a2e15 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -6,7 +6,7 @@ GenuineIntel-6-(1C|26|27|35|36),v5,bonnell,core
 GenuineIntel-6-(3D|47),v30,broadwell,core
 GenuineIntel-6-56,v12,broadwellde,core
 GenuineIntel-6-4F,v23,broadwellx,core
-GenuineIntel-6-55-[56789ABCDEF],v1.23,cascadelakex,core
+GenuineIntel-6-55-[56789ABCDEF],v1.25,cascadelakex,core
 GenuineIntel-6-DD,v1.00,clearwaterforest,core
 GenuineIntel-6-9[6C],v1.05,elkhartlake,core
 GenuineIntel-6-CF,v1.11,emeraldrapids,core

From 31c8714cf5b91da62ae549323fc41e32609a5b4b Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:50 -0700
Subject: [PATCH 096/179] perf vendor events: Update EmeraldRapids events

Update events from v1.11 to v1.14.

Bring in the event updates v1.14:
https://github.com/intel/perfmon/commit/6f6e4c8c906992b450cb2014d0501a9ec1cda0d0
https://github.com/intel/perfmon/commit/e363f82276c129aec60402a1d64efbbd41af844e

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../arch/x86/emeraldrapids/pipeline.json      |  2 +-
 .../arch/x86/emeraldrapids/uncore-io.json     | 12 +++++++++++
 .../arch/x86/emeraldrapids/uncore-memory.json | 20 +++++++++++++++++++
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 4 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/emeraldrapids/pipeline.json b/tools/perf/pmu-events/arch/x86/emeraldrapids/pipeline.json
index 00b05a77c289..48bec483b49a 100644
--- a/tools/perf/pmu-events/arch/x86/emeraldrapids/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/emeraldrapids/pipeline.json
@@ -684,7 +684,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-io.json b/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-io.json
index 94340dee1c9c..d4cf2199d46b 100644
--- a/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-io.json
@@ -1821,6 +1821,18 @@
         "UMask": "0x4",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Posted requests sent by the integrated IO (IIO) controller to the Ubox, useful for counting message signaled interrupts (MSI).",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x8e",
+        "EventName": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED",
+        "Experimental": "1",
+        "FCMask": "0x01",
+        "PerPkg": "1",
+        "PortMask": "0x00FF",
+        "UMask": "0x4",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "ITC address map 1",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-memory.json b/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-memory.json
index aa06088dd26f..68be01dad7c9 100644
--- a/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-memory.json
+++ b/tools/perf/pmu-events/arch/x86/emeraldrapids/uncore-memory.json
@@ -2145,6 +2145,16 @@
         "UMask": "0x1",
         "Unit": "MCHBM"
     },
+    {
+        "BriefDescription": "ECC Correctable Errors",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x09",
+        "EventName": "UNC_MCHBM_ECC_CORRECTABLE_ERRORS",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "ECC Correctable Errors.  Counts the number of ECC errors detected and corrected by the iMC on this channel.  This counter is only useful with ECC devices.  This count will increment one time for each correction regardless of the number of bits corrected.  The iMC can correct up to 4 bit errors in independent channel mode and 8 bit errors in lockstep mode.",
+        "Unit": "MCHBM"
+    },
     {
         "BriefDescription": "HBM Precharge All Commands",
         "Counter": "0,1,2,3",
@@ -2759,6 +2769,16 @@
         "UMask": "0x3",
         "Unit": "iMC"
     },
+    {
+        "BriefDescription": "ECC Correctable Errors",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x09",
+        "EventName": "UNC_M_ECC_CORRECTABLE_ERRORS",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "ECC Correctable Errors : Counts the number of ECC errors detected and corrected by the iMC on this channel.  This counter is only useful with ECC DRAM devices.  This count will increment one time for each correction regardless of the number of bits corrected.  The iMC can correct up to 4 bit errors in independent channel mode and 8 bit errors in lockstep mode.",
+        "Unit": "iMC"
+    },
     {
         "BriefDescription": "IMC Clockticks at HCLK frequency",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 9a60e95a2e15..e139a099374a 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -9,7 +9,7 @@ GenuineIntel-6-4F,v23,broadwellx,core
 GenuineIntel-6-55-[56789ABCDEF],v1.25,cascadelakex,core
 GenuineIntel-6-DD,v1.00,clearwaterforest,core
 GenuineIntel-6-9[6C],v1.05,elkhartlake,core
-GenuineIntel-6-CF,v1.11,emeraldrapids,core
+GenuineIntel-6-CF,v1.14,emeraldrapids,core
 GenuineIntel-6-5[CF],v13,goldmont,core
 GenuineIntel-6-7A,v1.01,goldmontplus,core
 GenuineIntel-6-B6,v1.07,grandridge,core

From 25da8939d615dc6cac67a57b320b2793691b39aa Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:51 -0700
Subject: [PATCH 097/179] perf vendor events: Update GrandRidge events

Update events from v1.07 to v1.09.

Bring in the event updates v1.09:
https://github.com/intel/perfmon/commit/8c74d09c8544421256a79f4f21e548ad756f5b7f
https://github.com/intel/perfmon/commit/18c7d2a75e45eacf5553f900ae2097a1290f5bed

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../arch/x86/grandridge/grr-metrics.json      | 30 +++++++++++++++----
 .../x86/grandridge/uncore-interconnect.json   | 10 +++++++
 .../arch/x86/grandridge/uncore-io.json        | 12 ++++++++
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 4 files changed, 47 insertions(+), 7 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/grandridge/grr-metrics.json b/tools/perf/pmu-events/arch/x86/grandridge/grr-metrics.json
index 1c6dba7b2822..878b1caf12de 100644
--- a/tools/perf/pmu-events/arch/x86/grandridge/grr-metrics.json
+++ b/tools/perf/pmu-events/arch/x86/grandridge/grr-metrics.json
@@ -106,6 +106,30 @@
         "MetricName": "io_bandwidth_write",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "The percent of inbound full cache line writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_ITOM / UNC_CHA_TOR_INSERTS.IO_ITOM",
+        "MetricName": "io_full_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "Message Signaled Interrupts (MSI) per second sent by the integrated I/O traffic controller (IIO) to System Configuration Controller (Ubox)",
+        "MetricExpr": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED / duration_time",
+        "MetricName": "io_msi",
+        "ScaleUnit": "1per_sec"
+    },
+    {
+        "BriefDescription": "The percent of inbound partial writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_MISS_RFO) / (UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_RFO)",
+        "MetricName": "io_partial_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "The percent of inbound reads initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_PCIRDCUR / UNC_CHA_TOR_INSERTS.IO_PCIRDCUR",
+        "MetricName": "io_read_l3_miss",
+        "ScaleUnit": "100%"
+    },
     {
         "BriefDescription": "Ratio of number of completed page walks (for 2 megabyte and 4 megabyte page sizes) caused by a code fetch to the total number of completed instructions",
         "MetricExpr": "ITLB_MISSES.WALK_COMPLETED_2M_4M / INST_RETIRED.ANY",
@@ -162,12 +186,6 @@
         "MetricName": "llc_data_read_mpi_demand_plus_prefetch",
         "ScaleUnit": "1per_instr"
     },
-    {
-        "BriefDescription": "Average latency of a last level cache (LLC) demand data read miss (read memory access) in nano seconds",
-        "MetricExpr": "1e9 * (UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_OPT / UNC_CHA_TOR_INSERTS.IA_MISS_DRD_OPT) / (UNC_CHA_CLOCKTICKS / (source_count(UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_OPT) * #num_packages)) * duration_time",
-        "MetricName": "llc_demand_data_read_miss_latency",
-        "ScaleUnit": "1ns"
-    },
     {
         "BriefDescription": "Load operations retired per instruction",
         "MetricExpr": "MEM_UOPS_RETIRED.ALL_LOADS / INST_RETIRED.ANY",
diff --git a/tools/perf/pmu-events/arch/x86/grandridge/uncore-interconnect.json b/tools/perf/pmu-events/arch/x86/grandridge/uncore-interconnect.json
index 2c18767511f3..c7250332d8aa 100644
--- a/tools/perf/pmu-events/arch/x86/grandridge/uncore-interconnect.json
+++ b/tools/perf/pmu-events/arch/x86/grandridge/uncore-interconnect.json
@@ -261,5 +261,15 @@
         "PerPkg": "1",
         "UMask": "0x8",
         "Unit": "IRP"
+    },
+    {
+        "BriefDescription": "Message Received : MSI",
+        "Counter": "0,1",
+        "EventCode": "0x42",
+        "EventName": "UNC_U_EVENT_MSG.MSI_RCVD",
+        "PerPkg": "1",
+        "PublicDescription": "Message Received : MSI : Message Signaled Interrupts - interrupts sent by devices (including PCIe via IOxAPIC) (Socket Mode only)",
+        "UMask": "0x2",
+        "Unit": "UBOX"
     }
 ]
diff --git a/tools/perf/pmu-events/arch/x86/grandridge/uncore-io.json b/tools/perf/pmu-events/arch/x86/grandridge/uncore-io.json
index c5b05c71c56d..764cf2f0b4a8 100644
--- a/tools/perf/pmu-events/arch/x86/grandridge/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/grandridge/uncore-io.json
@@ -907,6 +907,18 @@
         "UMask": "0x4",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Posted requests sent by the integrated IO (IIO) controller to the Ubox, useful for counting message signaled interrupts (MSI).",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x8e",
+        "EventName": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED",
+        "FCMask": "0x01",
+        "PerPkg": "1",
+        "PortMask": "0x0FF",
+        "PublicDescription": "-",
+        "UMask": "0x4",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "All 9 bits of Page Walk Tracker Occupancy",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index e139a099374a..f3fe686b6630 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -12,7 +12,7 @@ GenuineIntel-6-9[6C],v1.05,elkhartlake,core
 GenuineIntel-6-CF,v1.14,emeraldrapids,core
 GenuineIntel-6-5[CF],v13,goldmont,core
 GenuineIntel-6-7A,v1.01,goldmontplus,core
-GenuineIntel-6-B6,v1.07,grandridge,core
+GenuineIntel-6-B6,v1.09,grandridge,core
 GenuineIntel-6-A[DE],v1.08,graniterapids,core
 GenuineIntel-6-(3C|45|46),v36,haswell,core
 GenuineIntel-6-3F,v29,haswellx,core

From 81699249168750fd7bf9101d2e98b5133d5c23f2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:52 -0700
Subject: [PATCH 098/179] perf vendor events: Update GraniteRapids events

Update events from v1.08 to v1.10.

Bring in the event updates v1.10
https://github.com/intel/perfmon/commit/96259a932e2ce5f70ed7d347ca92fdeb78f83aa5
https://github.com/intel/perfmon/commit/19e315c8d2e0b44e170a6e60de44c9359062a6aa

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../arch/x86/graniterapids/cache.json         |  9 +++++
 .../arch/x86/graniterapids/counter.json       | 10 +++---
 .../arch/x86/graniterapids/gnr-metrics.json   | 36 +++++++++++++++++++
 .../arch/x86/graniterapids/pipeline.json      |  2 +-
 .../graniterapids/uncore-interconnect.json    | 19 ----------
 .../arch/x86/graniterapids/uncore-io.json     | 27 +++++++++++++-
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 7 files changed, 78 insertions(+), 27 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/cache.json b/tools/perf/pmu-events/arch/x86/graniterapids/cache.json
index 32f99a8a3871..dbdeade6fe6f 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/cache.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/cache.json
@@ -977,6 +977,15 @@
         "SampleAfterValue": "100003",
         "UMask": "0x4"
     },
+    {
+        "BriefDescription": "Offcore Uncacheable memory data read transactions.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x21",
+        "EventName": "OFFCORE_REQUESTS.MEM_UC",
+        "PublicDescription": "This event counts noncacheable memory data read transactions. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x20"
+    },
     {
         "BriefDescription": "Cycles when offcore outstanding cacheable Core Data Read transactions are present in SuperQueue (SQ), queue to uncore.",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/counter.json b/tools/perf/pmu-events/arch/x86/graniterapids/counter.json
index 5d3b202eadd3..d97211a0227e 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/counter.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/counter.json
@@ -59,6 +59,11 @@
         "CountersNumFixed": "0",
         "CountersNumGeneric": 4
     },
+    {
+        "Unit": "UBOX",
+        "CountersNumFixed": "0",
+        "CountersNumGeneric": "2"
+    },
     {
         "Unit": "PCU",
         "CountersNumFixed": "0",
@@ -73,10 +78,5 @@
         "Unit": "MDF",
         "CountersNumFixed": "0",
         "CountersNumGeneric": "4"
-    },
-    {
-        "Unit": "UBOX",
-        "CountersNumFixed": "0",
-        "CountersNumGeneric": "2"
     }
 ]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/gnr-metrics.json b/tools/perf/pmu-events/arch/x86/graniterapids/gnr-metrics.json
index af527f7f9d0c..9a620e1b8de8 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/gnr-metrics.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/gnr-metrics.json
@@ -95,6 +95,12 @@
         "MetricName": "io_bandwidth_read",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "Bandwidth of inbound IO reads that are initiated by end device controllers that are requesting memory from the CPU and miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_PCIRDCUR * 64 / 1e6 / duration_time",
+        "MetricName": "io_bandwidth_read_l3_miss",
+        "ScaleUnit": "1MB/s"
+    },
     {
         "BriefDescription": "Bandwidth of IO reads that are initiated by end device controllers that are requesting memory from the local CPU socket",
         "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_PCIRDCUR_LOCAL * 64 / 1e6 / duration_time",
@@ -113,6 +119,12 @@
         "MetricName": "io_bandwidth_write",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "Bandwidth of inbound IO writes that are initiated by end device controllers that are writing memory to the CPU",
+        "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_MISS_ITOM + UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR) * 64 / 1e6 / duration_time",
+        "MetricName": "io_bandwidth_write_l3_miss",
+        "ScaleUnit": "1MB/s"
+    },
     {
         "BriefDescription": "Bandwidth of IO writes that are initiated by end device controllers that are writing memory to the local CPU socket",
         "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_ITOM_LOCAL + UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR_LOCAL) * 64 / 1e6 / duration_time",
@@ -125,6 +137,30 @@
         "MetricName": "io_bandwidth_write_remote",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "The percent of inbound full cache line writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_ITOM / UNC_CHA_TOR_INSERTS.IO_ITOM",
+        "MetricName": "io_full_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "Message Signaled Interrupts (MSI) per second sent by the integrated I/O traffic controller (IIO) to System Configuration Controller (Ubox)",
+        "MetricExpr": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED / duration_time",
+        "MetricName": "io_msi",
+        "ScaleUnit": "1per_sec"
+    },
+    {
+        "BriefDescription": "The percent of inbound partial writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_MISS_RFO) / (UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_RFO)",
+        "MetricName": "io_partial_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "The percent of inbound reads initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_PCIRDCUR / UNC_CHA_TOR_INSERTS.IO_PCIRDCUR",
+        "MetricName": "io_read_l3_miss",
+        "ScaleUnit": "100%"
+    },
     {
         "BriefDescription": "Ratio of number of completed page walks (for all page sizes) caused by a code fetch to the total number of completed instructions",
         "MetricExpr": "ITLB_MISSES.WALK_COMPLETED / INST_RETIRED.ANY",
diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/pipeline.json b/tools/perf/pmu-events/arch/x86/graniterapids/pipeline.json
index 1edfdad1600d..27af3bd6bacf 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/pipeline.json
@@ -738,7 +738,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/uncore-interconnect.json b/tools/perf/pmu-events/arch/x86/graniterapids/uncore-interconnect.json
index e5bd11b27bcd..6667fbc50452 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/uncore-interconnect.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/uncore-interconnect.json
@@ -1915,24 +1915,6 @@
         "UMask": "0x4",
         "Unit": "UPI"
     },
-    {
-        "BriefDescription": "Tx Flit Buffer Allocations : Number of allocations into the UPI Tx Flit Buffer.  Generally, when data is transmitted across UPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.",
-        "Counter": "0,1,2,3",
-        "EventCode": "0x40",
-        "EventName": "UNC_UPI_TxL_INSERTS",
-        "Experimental": "1",
-        "PerPkg": "1",
-        "Unit": "UPI"
-    },
-    {
-        "BriefDescription": "Tx Flit Buffer Occupancy : Accumulates the number of flits in the TxQ.  Generally, when data is transmitted across UPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link. This can be used with the cycles not empty event to track average occupancy, or the allocations event to track average lifetime in the TxQ.",
-        "Counter": "0,1,2,3",
-        "EventCode": "0x42",
-        "EventName": "UNC_UPI_TxL_OCCUPANCY",
-        "Experimental": "1",
-        "PerPkg": "1",
-        "Unit": "UPI"
-    },
     {
         "BriefDescription": "Message Received : Doorbell",
         "Counter": "0,1",
@@ -1970,7 +1952,6 @@
         "Counter": "0,1",
         "EventCode": "0x42",
         "EventName": "UNC_U_EVENT_MSG.MSI_RCVD",
-        "Experimental": "1",
         "PerPkg": "1",
         "PublicDescription": "Message Received : MSI : Message Signaled Interrupts - interrupts sent by devices (including PCIe via IOxAPIC) (Socket Mode only)",
         "UMask": "0x2",
diff --git a/tools/perf/pmu-events/arch/x86/graniterapids/uncore-io.json b/tools/perf/pmu-events/arch/x86/graniterapids/uncore-io.json
index 886b99a971be..f4f956966e16 100644
--- a/tools/perf/pmu-events/arch/x86/graniterapids/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/graniterapids/uncore-io.json
@@ -1121,8 +1121,9 @@
         "Unit": "IIO"
     },
     {
-        "BriefDescription": "Occupancy of outbound request queue : To device : Counts number of outbound requests/completions IIO is currently processing",
+        "BriefDescription": "This event is deprecated. [This event is alias to UNC_IIO_NUM_OUTSTANDING_REQ_FROM_CPU.TO_IO]",
         "Counter": "2,3",
+        "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "UNC_IIO_NUM_OUSTANDING_REQ_FROM_CPU.TO_IO",
         "Experimental": "1",
@@ -1132,6 +1133,18 @@
         "UMask": "0x8",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Occupancy of outbound request queue : To device : Counts number of outbound requests/completions IIO is currently processing [This event is alias to UNC_IIO_NUM_OUSTANDING_REQ_FROM_CPU.TO_IO]",
+        "Counter": "2,3",
+        "EventCode": "0xc5",
+        "EventName": "UNC_IIO_NUM_OUTSTANDING_REQ_FROM_CPU.TO_IO",
+        "Experimental": "1",
+        "FCMask": "0x07",
+        "PerPkg": "1",
+        "PortMask": "0x0FF",
+        "UMask": "0x8",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "Passing data to be written",
         "Counter": "0,1,2,3",
@@ -1300,6 +1313,18 @@
         "UMask": "0x4",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Posted requests sent by the integrated IO (IIO) controller to the Ubox, useful for counting message signaled interrupts (MSI).",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x8e",
+        "EventName": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED",
+        "FCMask": "0x01",
+        "PerPkg": "1",
+        "PortMask": "0x0FF",
+        "PublicDescription": "-",
+        "UMask": "0x4",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "All 9 bits of Page Walk Tracker Occupancy",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index f3fe686b6630..960076e3f66f 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -13,7 +13,7 @@ GenuineIntel-6-CF,v1.14,emeraldrapids,core
 GenuineIntel-6-5[CF],v13,goldmont,core
 GenuineIntel-6-7A,v1.01,goldmontplus,core
 GenuineIntel-6-B6,v1.09,grandridge,core
-GenuineIntel-6-A[DE],v1.08,graniterapids,core
+GenuineIntel-6-A[DE],v1.10,graniterapids,core
 GenuineIntel-6-(3C|45|46),v36,haswell,core
 GenuineIntel-6-3F,v29,haswellx,core
 GenuineIntel-6-7[DE],v1.24,icelake,core

From 0a6b21da26e22b68a43cc763253a9ad0a8a24c1a Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:53 -0700
Subject: [PATCH 099/179] perf vendor events: Update IcelakeX events

Update events from v1.27 to v1.28.

Bring in the event updates v1.28:
https://github.com/intel/perfmon/commit/c52728a46cf37ba271c09b1eb7093cfc82dfbf29

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/icelakex/pipeline.json     | 2 +-
 tools/perf/pmu-events/arch/x86/icelakex/uncore-cache.json | 2 --
 tools/perf/pmu-events/arch/x86/mapfile.csv                | 2 +-
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/icelakex/pipeline.json b/tools/perf/pmu-events/arch/x86/icelakex/pipeline.json
index f1446f1b67c6..f3a0d7f49af4 100644
--- a/tools/perf/pmu-events/arch/x86/icelakex/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/icelakex/pipeline.json
@@ -477,7 +477,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/icelakex/uncore-cache.json b/tools/perf/pmu-events/arch/x86/icelakex/uncore-cache.json
index 8c73708befef..6f84ad47276d 100644
--- a/tools/perf/pmu-events/arch/x86/icelakex/uncore-cache.json
+++ b/tools/perf/pmu-events/arch/x86/icelakex/uncore-cache.json
@@ -8193,7 +8193,6 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x35",
         "EventName": "UNC_CHA_TOR_INSERTS.IO_MISS_RFO",
-        "Experimental": "1",
         "PerPkg": "1",
         "PublicDescription": "TOR Inserts : RFOs issued by IO Devices that missed the LLC : Counts the number of entries successfully inserted into the TOR that match qualifications specified by the subevent.   Does not include addressless requests such as locks and interrupts.",
         "UMask": "0xc803fe04",
@@ -8234,7 +8233,6 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x35",
         "EventName": "UNC_CHA_TOR_INSERTS.IO_RFO",
-        "Experimental": "1",
         "PerPkg": "1",
         "PublicDescription": "TOR Inserts : RFOs issued by IO Devices : Counts the number of entries successfully inserted into the TOR that match qualifications specified by the subevent.   Does not include addressless requests such as locks and interrupts.",
         "UMask": "0xc803ff04",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 960076e3f66f..53c0d19c51d4 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -17,7 +17,7 @@ GenuineIntel-6-A[DE],v1.10,graniterapids,core
 GenuineIntel-6-(3C|45|46),v36,haswell,core
 GenuineIntel-6-3F,v29,haswellx,core
 GenuineIntel-6-7[DE],v1.24,icelake,core
-GenuineIntel-6-6[AC],v1.27,icelakex,core
+GenuineIntel-6-6[AC],v1.28,icelakex,core
 GenuineIntel-6-3A,v24,ivybridge,core
 GenuineIntel-6-3E,v24,ivytown,core
 GenuineIntel-6-2D,v24,jaketown,core

From efafab4f491532c3293eeb1edeb9fcb2844d46b9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:54 -0700
Subject: [PATCH 100/179] perf vendor events: Update LunarLake events

Update events from v1.11 to v1.14.

Bring in the event updates v1.14:
https://github.com/intel/perfmon/commit/95634fec10542c0c466eb2c6d9a81e0c24fb1123
https://github.com/intel/perfmon/commit/84a49938387ac592af0a622273e4e8e4997e987d

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/x86/lunarlake/cache.json   | 11 +++++++++++
 .../arch/x86/lunarlake/pipeline.json           | 18 ++++++++++++++----
 .../arch/x86/lunarlake/virtual-memory.json     | 18 ------------------
 tools/perf/pmu-events/arch/x86/mapfile.csv     |  2 +-
 4 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/lunarlake/cache.json b/tools/perf/pmu-events/arch/x86/lunarlake/cache.json
index b1a6bb867a1e..ff37d49611c3 100644
--- a/tools/perf/pmu-events/arch/x86/lunarlake/cache.json
+++ b/tools/perf/pmu-events/arch/x86/lunarlake/cache.json
@@ -790,6 +790,17 @@
         "EventName": "MEM_LOAD_RETIRED.L1_HIT",
         "PublicDescription": "Counts retired load instructions with at least one uop that hit in the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source. Available PDIST counters: 0",
         "SampleAfterValue": "1000003",
+        "UMask": "0x101",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts retired load instructions with at least one uop that hit in the Level 0 of the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source.",
+        "Counter": "0,1,2,3",
+        "Data_LA": "1",
+        "EventCode": "0xd1",
+        "EventName": "MEM_LOAD_RETIRED.L1_HIT_L0",
+        "PublicDescription": "Counts retired load instructions with at least one uop that hit in the Level 0 of the L1 data cache. This event includes all SW prefetches and lock instructions regardless of the data source. Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
         "UMask": "0x1",
         "Unit": "cpu_core"
     },
diff --git a/tools/perf/pmu-events/arch/x86/lunarlake/pipeline.json b/tools/perf/pmu-events/arch/x86/lunarlake/pipeline.json
index 4875047fb65c..6ac410510628 100644
--- a/tools/perf/pmu-events/arch/x86/lunarlake/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/lunarlake/pipeline.json
@@ -1247,9 +1247,19 @@
         "Unit": "cpu_core"
     },
     {
-        "BriefDescription": "Counts the number of demand loads that match on a wcb (request buffer) allocated by an L1 hardware prefetch",
+        "BriefDescription": "Counts the number of demand loads that match on a wcb (request buffer) allocated by an L1 hardware prefetch [This event is alias to LOAD_HIT_PREFETCH.HW_PF]",
         "Counter": "0,1,2,3,4,5,6,7",
         "EventCode": "0x4c",
+        "EventName": "LOAD_HIT_PREFETCH.HWPF",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "This event is deprecated. [This event is alias to LOAD_HIT_PREFETCH.HWPF]",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "Deprecated": "1",
+        "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.HW_PF",
         "SampleAfterValue": "1000003",
         "UMask": "0x2",
@@ -1664,7 +1674,7 @@
     },
     {
         "BriefDescription": "Fixed Counter: Counts the number of issue slots not consumed by the backend because allocation is stalled due to a mispredicted jump or a machine clear.",
-        "Counter": "36",
+        "Counter": "Fixed counter 4",
         "EventName": "TOPDOWN_BAD_SPECULATION.ALL",
         "PublicDescription": "Fixed Counter: Counts the number of issue slots that were not consumed by the backend because allocation is stalled due to a mispredicted jump or a machine clear.  Counts all issue slots blocked during this recovery window including relevant microcode flows and while uops are not yet available in the IQ. Also, includes the issue slots that were consumed by the backend but were thrown away because they were younger than the mispredict or machine clear.",
         "SampleAfterValue": "1000003",
@@ -1797,7 +1807,7 @@
     },
     {
         "BriefDescription": "Fixed Counter: Counts the number of retirement slots not consumed due to front end stalls.",
-        "Counter": "37",
+        "Counter": "Fixed counter 5",
         "EventName": "TOPDOWN_FE_BOUND.ALL",
         "SampleAfterValue": "1000003",
         "UMask": "0x6",
@@ -1903,7 +1913,7 @@
     },
     {
         "BriefDescription": "Fixed Counter: Counts the number of consumed retirement slots.",
-        "Counter": "38",
+        "Counter": "Fixed counter 6",
         "EventName": "TOPDOWN_RETIRING.ALL",
         "SampleAfterValue": "1000003",
         "UMask": "0x7",
diff --git a/tools/perf/pmu-events/arch/x86/lunarlake/virtual-memory.json b/tools/perf/pmu-events/arch/x86/lunarlake/virtual-memory.json
index defa3a967754..e60a5e904da2 100644
--- a/tools/perf/pmu-events/arch/x86/lunarlake/virtual-memory.json
+++ b/tools/perf/pmu-events/arch/x86/lunarlake/virtual-memory.json
@@ -36,24 +36,6 @@
         "UMask": "0x320",
         "Unit": "cpu_core"
     },
-    {
-        "BriefDescription": "Counts the number of first level TLB misses but second level hits due to a demand load that did not start a page walk. Account for 4k page size only. Will result in a DTLB write from STLB.",
-        "Counter": "0,1,2,3,4,5,6,7",
-        "EventCode": "0x08",
-        "EventName": "DTLB_LOAD_MISSES.STLB_HIT_4K",
-        "SampleAfterValue": "200003",
-        "UMask": "0x20",
-        "Unit": "cpu_atom"
-    },
-    {
-        "BriefDescription": "Counts the number of first level TLB misses but second level hits due to a demand load that did not start a page walk. Account for large page sizes only. Will result in a DTLB write from STLB.",
-        "Counter": "0,1,2,3,4,5,6,7",
-        "EventCode": "0x08",
-        "EventName": "DTLB_LOAD_MISSES.STLB_HIT_LGPG",
-        "SampleAfterValue": "200003",
-        "UMask": "0x40",
-        "Unit": "cpu_atom"
-    },
     {
         "BriefDescription": "Cycles when at least one PMH is busy with a page walk for a demand load.",
         "Counter": "0,1,2,3,4,5,6,7,8,9",
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 53c0d19c51d4..5f27b3700c3c 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -22,7 +22,7 @@ GenuineIntel-6-3A,v24,ivybridge,core
 GenuineIntel-6-3E,v24,ivytown,core
 GenuineIntel-6-2D,v24,jaketown,core
 GenuineIntel-6-(57|85),v16,knightslanding,core
-GenuineIntel-6-BD,v1.11,lunarlake,core
+GenuineIntel-6-BD,v1.14,lunarlake,core
 GenuineIntel-6-(AA|AC|B5),v1.13,meteorlake,core
 GenuineIntel-6-1[AEF],v4,nehalemep,core
 GenuineIntel-6-2E,v4,nehalemex,core

From a04ab3e59d6a2be27a45d54aef706c7080c7db4e Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:55 -0700
Subject: [PATCH 101/179] perf vendor events: Update MeteorLake events

Update events from v1.13 to v1.14.

Bring in the event updates v1.14:
https://github.com/intel/perfmon/commit/6c53969b8d1a83afe6ae90149c8dd4ee416027ef

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 .../pmu-events/arch/x86/meteorlake/cache.json |  2 +-
 .../arch/x86/meteorlake/frontend.json         | 72 +++++++++++++++++++
 .../arch/x86/meteorlake/pipeline.json         |  2 +-
 4 files changed, 75 insertions(+), 3 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 5f27b3700c3c..1185ea93b44a 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -23,7 +23,7 @@ GenuineIntel-6-3E,v24,ivytown,core
 GenuineIntel-6-2D,v24,jaketown,core
 GenuineIntel-6-(57|85),v16,knightslanding,core
 GenuineIntel-6-BD,v1.14,lunarlake,core
-GenuineIntel-6-(AA|AC|B5),v1.13,meteorlake,core
+GenuineIntel-6-(AA|AC|B5),v1.14,meteorlake,core
 GenuineIntel-6-1[AEF],v4,nehalemep,core
 GenuineIntel-6-2E,v4,nehalemex,core
 GenuineIntel-6-A7,v1.04,rocketlake,core
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/cache.json b/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
index c980bbee6146..82b115183924 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/cache.json
@@ -231,7 +231,7 @@
         "Unit": "cpu_core"
     },
     {
-        "BriefDescription": "Counts the number of L2 Cache Accesses that miss the L2 and get BBL reject  short and long rejects (includes those counted in L2_reject_XQ.any), per core event",
+        "BriefDescription": "Counts the number of L2 Cache Accesses that miss the L2 and get BBL reject  short and long rejects, per core event",
         "Counter": "0,1,2,3,4,5,6,7",
         "EventCode": "0x24",
         "EventName": "L2_REQUEST.REJECTS",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/frontend.json b/tools/perf/pmu-events/arch/x86/meteorlake/frontend.json
index 509ce68c2ea6..82727022efb6 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/frontend.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/frontend.json
@@ -49,6 +49,14 @@
         "UMask": "0x2",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged with having preceded with frontend bound behavior",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ALL",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Retired ANT branches",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -73,6 +81,43 @@
         "UMask": "0x3",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a baclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_DETECT",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles /empty issue slots due to a btclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_RESTEER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.CISC",
+        "PublicDescription": "Counts the number of  instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged every cycle the decoder is unable to send 3 uops per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.DECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Retired Instructions who experienced a critical DSB miss.",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -85,6 +130,15 @@
         "UMask": "0x3",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to icache miss",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ICACHE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to ITLB miss",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -286,6 +340,24 @@
         "UMask": "0x3",
         "Unit": "cpu_core"
     },
+    {
+        "BriefDescription": "Counts the number of instruction retired tagged after a wasted issue slot if none of the previous events occurred",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.OTHER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x80",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a predecode wrong.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.PREDECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4",
+        "Unit": "cpu_atom"
+    },
     {
         "BriefDescription": "Retired Instructions who experienced STLB (2nd level TLB) true miss.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json b/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
index a833d6f53d0e..22b25708e799 100644
--- a/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/meteorlake/pipeline.json
@@ -1076,7 +1076,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
         "SampleAfterValue": "100003",
         "UMask": "0x1",
         "Unit": "cpu_core"

From 1f9e24e4df0099c407bc7eeed931baf58d9144a9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:56 -0700
Subject: [PATCH 102/179] perf vendor events: Add PantherLake events

Bring in the events at v1.00:
https://github.com/intel/perfmon/commit/d90a6737d0e4e6fbea4a5951e829615fd8317c24

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv    |   1 +
 .../arch/x86/pantherlake/cache.json           | 278 +++++++++++++++
 .../arch/x86/pantherlake/counter.json         |  12 +
 .../arch/x86/pantherlake/frontend.json        |  30 ++
 .../arch/x86/pantherlake/memory.json          | 215 ++++++++++++
 .../arch/x86/pantherlake/pipeline.json        | 325 ++++++++++++++++++
 .../arch/x86/pantherlake/virtual-memory.json  |  62 ++++
 7 files changed, 923 insertions(+)
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/cache.json
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/counter.json
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/frontend.json
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/memory.json
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/pipeline.json
 create mode 100644 tools/perf/pmu-events/arch/x86/pantherlake/virtual-memory.json

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 1185ea93b44a..252382751fa5 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -26,6 +26,7 @@ GenuineIntel-6-BD,v1.14,lunarlake,core
 GenuineIntel-6-(AA|AC|B5),v1.14,meteorlake,core
 GenuineIntel-6-1[AEF],v4,nehalemep,core
 GenuineIntel-6-2E,v4,nehalemex,core
+GenuineIntel-6-CC,v1.00,pantherlake,core
 GenuineIntel-6-A7,v1.04,rocketlake,core
 GenuineIntel-6-2A,v19,sandybridge,core
 GenuineIntel-6-8F,v1.25,sapphirerapids,core
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/cache.json b/tools/perf/pmu-events/arch/x86/pantherlake/cache.json
new file mode 100644
index 000000000000..c84f3d9fdb10
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/cache.json
@@ -0,0 +1,278 @@
+[
+    {
+        "BriefDescription": "Counts the number of L2 cache accesses from front door requests for Code Read, Data Read, RFO, ITOM, and L2 Prefetches. Does not include rejects or recycles, per core event.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x24",
+        "EventName": "L2_REQUEST.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1ff",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "L2 code requests",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x24",
+        "EventName": "L2_RQSTS.ALL_CODE_RD",
+        "PublicDescription": "Counts the total number of L2 code requests.",
+        "SampleAfterValue": "200003",
+        "UMask": "0xe4",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Demand Data Read access L2 cache",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x24",
+        "EventName": "L2_RQSTS.ALL_DEMAND_DATA_RD",
+        "PublicDescription": "Counts Demand Data Read requests accessing the L2 cache. These requests may hit or miss L2 cache. True-miss exclude misses that were merged with ongoing L2 misses. An access is counted once.",
+        "SampleAfterValue": "200003",
+        "UMask": "0xe1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of cacheable memory requests that miss in the LLC. Counts on a per core basis.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x2e",
+        "EventName": "LONGEST_LAT_CACHE.MISS",
+        "PublicDescription": "Counts the number of cacheable memory requests that miss in the Last Level Cache (LLC). Requests include demand loads, reads for ownership (RFO), instruction fetches and L1 HW prefetches. If the core has access to an L3 cache, the LLC is the L3 cache, otherwise it is the L2 cache. Counts on a per core basis.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x41",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Core-originated cacheable requests that missed L3  (Except hardware prefetches to the L3)",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x2e",
+        "EventName": "LONGEST_LAT_CACHE.MISS",
+        "PublicDescription": "Counts core-originated cacheable requests that miss the L3 cache (Longest Latency cache). Requests include data and code reads, Reads-for-Ownership (RFOs), speculative accesses and hardware prefetches to the L1 and L2.  It does not include hardware prefetches to the L3, and may not count other types of requests to the L3.",
+        "SampleAfterValue": "100003",
+        "UMask": "0x41",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of cacheable memory requests that access the LLC. Counts on a per core basis.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x2e",
+        "EventName": "LONGEST_LAT_CACHE.REFERENCE",
+        "PublicDescription": "Counts the number of cacheable memory requests that access the Last Level Cache (LLC). Requests include demand loads, reads for ownership (RFO), instruction fetches and L1 HW prefetches. If the core has access to an L3 cache, the LLC is the L3 cache, otherwise it is the L2 cache. Counts on a per core basis.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4f",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Core-originated cacheable requests that refer to L3 (Except hardware prefetches to the L3)",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x2e",
+        "EventName": "LONGEST_LAT_CACHE.REFERENCE",
+        "PublicDescription": "Counts core-originated cacheable requests to the L3 cache (Longest Latency cache). Requests include data and code reads, Reads-for-Ownership (RFOs), speculative accesses and hardware prefetches to the L1 and L2.  It does not include hardware prefetches to the L3, and may not count other types of requests to the L3.",
+        "SampleAfterValue": "100003",
+        "UMask": "0x4f",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts all retired load instructions.",
+        "Counter": "0,1,2,3",
+        "Data_LA": "1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_INST_RETIRED.ALL_LOADS",
+        "PublicDescription": "Counts Instructions with at least one architecturally visible load retired. Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x81",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Retired store instructions.",
+        "Counter": "0,1,2,3",
+        "Data_LA": "1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_INST_RETIRED.ALL_STORES",
+        "PublicDescription": "Counts all retired store instructions. Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x82",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of load ops retired.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.ALL_LOADS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x81",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of store ops retired.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.ALL_STORES",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x82",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_1024",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x400",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_128",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x80",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_16",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x10",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_2048",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x800",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_256",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x100",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_32",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x20",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_4",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x4",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_512",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x200",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_64",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x40",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of tagged load uops retired that exceed the latency threshold defined in MEC_CR_PEBS_LD_LAT_THRESHOLD - Only counts with PEBS enabled.",
+        "Counter": "0,1",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.LOAD_LATENCY_GT_8",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x8",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of  stores uops retired same as MEM_UOPS_RETIRED.ALL_STORES",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xd0",
+        "EventName": "MEM_UOPS_RETIRED.STORE_LATENCY",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x6",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that have any type of response.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xB7",
+        "EventName": "OCR.DEMAND_DATA_RD.ANY_RESPONSE",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x10001",
+        "PublicDescription": "Counts demand data reads that have any type of response. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that have any type of response.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x2A,0x2B",
+        "EventName": "OCR.DEMAND_DATA_RD.ANY_RESPONSE",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x10001",
+        "PublicDescription": "Counts demand data reads that have any type of response. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that have any type of response.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xB7",
+        "EventName": "OCR.DEMAND_RFO.ANY_RESPONSE",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x10002",
+        "PublicDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that have any type of response. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that have any type of response.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x2A,0x2B",
+        "EventName": "OCR.DEMAND_RFO.ANY_RESPONSE",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x10002",
+        "PublicDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that have any type of response. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/counter.json b/tools/perf/pmu-events/arch/x86/pantherlake/counter.json
new file mode 100644
index 000000000000..69f158a97707
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/counter.json
@@ -0,0 +1,12 @@
+[
+    {
+        "Unit": "cpu_atom",
+        "CountersNumFixed": "3",
+        "CountersNumGeneric": "39"
+    },
+    {
+        "Unit": "cpu_core",
+        "CountersNumFixed": "4",
+        "CountersNumGeneric": "10"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/frontend.json b/tools/perf/pmu-events/arch/x86/pantherlake/frontend.json
new file mode 100644
index 000000000000..aedf631e3c0f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/frontend.json
@@ -0,0 +1,30 @@
+[
+    {
+        "BriefDescription": "Counts every time the code stream enters into a new cache line by walking sequential from the previous line or being redirected by a jump.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x80",
+        "EventName": "ICACHE.ACCESSES",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x3",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts every time the code stream enters into a new cache line by walking sequential from the previous line or being redirected by a jump and the instruction cache registers bytes are not present. -",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x80",
+        "EventName": "ICACHE.MISSES",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "This event counts a subset of the Topdown Slots event that when no operation was delivered to the back-end pipeline due to instruction fetch limitations when the back-end could have accepted more operations. Common examples include instruction cache misses or x86 instruction decode limitations.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x9c",
+        "EventName": "IDQ_BUBBLES.CORE",
+        "PublicDescription": "This event counts a subset of the Topdown Slots event that when no operation was delivered to the back-end pipeline due to instruction fetch limitations when the back-end could have accepted more operations. Common examples include instruction cache misses or x86 instruction decode limitations. Software can use this event as the numerator for the Frontend Bound metric (or top-level category) of the Top-down Microarchitecture Analysis method.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/memory.json b/tools/perf/pmu-events/arch/x86/pantherlake/memory.json
new file mode 100644
index 000000000000..47daee8cc00f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/memory.json
@@ -0,0 +1,215 @@
+[
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 1024 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_1024",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x400",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 1024 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "53",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 128 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_128",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x80",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 128 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "1009",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 16 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_16",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x10",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 16 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "20011",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 2048 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_2048",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x800",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 2048 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "23",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 256 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_256",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x100",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 256 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "503",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 32 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_32",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x20",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 32 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "100007",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 4 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_4",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x4",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 4 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 512 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_512",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x200",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 512 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "101",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 64 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_64",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x40",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 64 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "2003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 8 cycles.",
+        "Counter": "2,3,4,5,6,7,8,9",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.LOAD_LATENCY_GT_8",
+        "MSRIndex": "0x3F6",
+        "MSRValue": "0x8",
+        "PublicDescription": "Counts randomly selected loads when the latency from first dispatch to completion is greater than 8 cycles.  Reported latency may be longer than just the memory latency. Available PDIST counters: 0",
+        "SampleAfterValue": "50021",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Retired memory store access operations. A PDist event for PEBS Store Latency Facility.",
+        "Counter": "0,1",
+        "Data_LA": "1",
+        "EventCode": "0xcd",
+        "EventName": "MEM_TRANS_RETIRED.STORE_SAMPLE",
+        "PublicDescription": "Counts Retired memory accesses with at least 1 store operation. This PEBS event is the precisely-distributed (PDist) trigger covering all stores uops for sampling by the PEBS Store Latency Facility. The facility is described in Intel SDM Volume 3 section 19.9.8 Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that were supplied by DRAM.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xB7",
+        "EventName": "OCR.DEMAND_DATA_RD.DRAM",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x7BC000001",
+        "PublicDescription": "Counts demand data reads that were supplied by DRAM. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that were supplied by DRAM.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x2A,0x2B",
+        "EventName": "OCR.DEMAND_DATA_RD.DRAM",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x1E780000001",
+        "PublicDescription": "Counts demand data reads that were supplied by DRAM. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that were not supplied by the L3 cache.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xB7",
+        "EventName": "OCR.DEMAND_DATA_RD.L3_MISS",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x13FBFC00001",
+        "PublicDescription": "Counts demand data reads that were not supplied by the L3 cache. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand data reads that were not supplied by the L3 cache.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x2A,0x2B",
+        "EventName": "OCR.DEMAND_DATA_RD.L3_MISS",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x9E7FA000001",
+        "PublicDescription": "Counts demand data reads that were not supplied by the L3 cache. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that were not supplied by the L3 cache.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xB7",
+        "EventName": "OCR.DEMAND_RFO.L3_MISS",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x13FBFC00002",
+        "PublicDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that were not supplied by the L3 cache. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that were not supplied by the L3 cache.",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x2A,0x2B",
+        "EventName": "OCR.DEMAND_RFO.L3_MISS",
+        "MSRIndex": "0x1a6,0x1a7",
+        "MSRValue": "0x9E7FA000002",
+        "PublicDescription": "Counts demand read for ownership (RFO) requests and software prefetches for exclusive ownership (PREFETCHW) that were not supplied by the L3 cache. Available PDIST counters: 0",
+        "SampleAfterValue": "100003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/pipeline.json b/tools/perf/pmu-events/arch/x86/pantherlake/pipeline.json
new file mode 100644
index 000000000000..2caf2f85327f
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/pipeline.json
@@ -0,0 +1,325 @@
+[
+    {
+        "BriefDescription": "Counts the total number of branch instructions retired for all branch types.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc4",
+        "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
+        "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for.",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "All branch instructions retired.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xc4",
+        "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
+        "PublicDescription": "Counts all branch instructions retired. Available PDIST counters: 0",
+        "SampleAfterValue": "400009",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the total number of mispredicted branch instructions retired for all branch types.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc5",
+        "EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
+        "PublicDescription": "Counts the total number of mispredicted branch instructions retired.  All branch type instructions are accounted for.  Prediction of the branch target address enables the processor to begin executing instructions before the non-speculative execution path is known. The branch prediction unit (BPU) predicts the target address based on the instruction pointer (IP) of the branch and on the execution path through which execution reached this IP.    A branch misprediction occurs when the prediction is wrong, and results in discarding all instructions executed in the speculative path and re-fetching from the correct path.",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "All mispredicted branch instructions retired.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xc5",
+        "EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
+        "PublicDescription": "Counts all the retired branch instructions that were mispredicted by the processor. A branch misprediction occurs when the processor incorrectly predicts the destination of the branch.  When the misprediction is discovered at execution, all the instructions executed in the wrong (speculative) path must be discarded, and the processor must start fetching from the correct path. Available PDIST counters: 0",
+        "SampleAfterValue": "400009",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of unhalted core clock cycles.",
+        "Counter": "Fixed counter 1",
+        "EventName": "CPU_CLK_UNHALTED.CORE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Core cycles when the core is not in a halt state.",
+        "Counter": "Fixed counter 1",
+        "EventName": "CPU_CLK_UNHALTED.CORE",
+        "PublicDescription": "Counts the number of core cycles while the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. This event is a component in many key event ratios. The core frequency may change from time to time due to transitions associated with Enhanced Intel SpeedStep Technology or TM2. For this reason this event may have a changing ratio with regards to time. When the core frequency is constant, this event can approximate elapsed time while the core was not in the halt state. It is counted on a dedicated fixed counter, leaving the programmable counters available for other events.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x2",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of unhalted core clock cycles. [This event is alias to CPU_CLK_UNHALTED.THREAD_P]",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.CORE_P",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Thread cycles when thread is not in halt state [This event is alias to CPU_CLK_UNHALTED.THREAD_P]",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.CORE_P",
+        "PublicDescription": "This is an architectural event that counts the number of thread cycles while the thread is not in a halt state. The thread enters the halt state when it is running the HLT instruction. The core frequency may change from time to time due to power or thermal throttling. For this reason, this event may have a changing ratio with regards to wall clock time. [This event is alias to CPU_CLK_UNHALTED.THREAD_P]",
+        "SampleAfterValue": "2000003",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of unhalted reference clock cycles.",
+        "Counter": "Fixed counter 2",
+        "EventName": "CPU_CLK_UNHALTED.REF_TSC",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x3",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Reference cycles when the core is not in halt state.",
+        "Counter": "Fixed counter 2",
+        "EventName": "CPU_CLK_UNHALTED.REF_TSC",
+        "PublicDescription": "Counts the number of reference cycles when the core is not in a halt state. The core enters the halt state when it is running the HLT instruction or the MWAIT instruction. This event is not affected by core frequency changes (for example, P states, TM2 transitions) but has the same incrementing frequency as the time stamp counter. This event can approximate elapsed time while the core was not in a halt state. Note: On all current platforms this event stops counting during 'throttling (TM)' states duty off periods the processor is 'halted'.  The counter update is done at a lower clock rate then the core clock the overflow status bit for this counter may appear 'sticky'.  After the counter has overflowed and software clears the overflow status bit and resets the counter to less than MAX. The reset value to the counter is not clocked immediately so the overflow status bit will flip 'high (1)' and generate another PMI (if enabled) after which the reset value gets clocked into the counter. Therefore, software will get the interrupt, read the overflow status bit '1 for bit 34 while the counter value is less than MAX. Software should ignore this case.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x3",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of unhalted reference clock cycles at TSC frequency.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.REF_TSC_P",
+        "PublicDescription": "Counts the number of reference cycles that the core is not in a halt state. The core enters the halt state when it is running the HLT instruction. This event is not affected by core frequency changes and increments at a fixed frequency that is also used for the Time Stamp Counter (TSC). This event uses a programmable general purpose performance counter.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Reference cycles when the core is not in halt state.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.REF_TSC_P",
+        "PublicDescription": "Counts the number of reference cycles when the core is not in a halt state. The core enters the halt state when it is running the HLT instruction or the MWAIT instruction. This event is not affected by core frequency changes (for example, P states, TM2 transitions) but has the same incrementing frequency as the time stamp counter. This event can approximate elapsed time while the core was not in a halt state. Note: On all current platforms this event stops counting during 'throttling (TM)' states duty off periods the processor is 'halted'.  The counter update is done at a lower clock rate then the core clock the overflow status bit for this counter may appear 'sticky'.  After the counter has overflowed and software clears the overflow status bit and resets the counter to less than MAX. The reset value to the counter is not clocked immediately so the overflow status bit will flip 'high (1)' and generate another PMI (if enabled) after which the reset value gets clocked into the counter. Therefore, software will get the interrupt, read the overflow status bit '1 for bit 34 while the counter value is less than MAX. Software should ignore this case.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of unhalted core clock cycles.",
+        "Counter": "Fixed counter 1",
+        "EventName": "CPU_CLK_UNHALTED.THREAD",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Core cycles when the thread is not in a halt state.",
+        "Counter": "Fixed counter 1",
+        "EventName": "CPU_CLK_UNHALTED.THREAD",
+        "PublicDescription": "Counts the number of core cycles while the thread is not in a halt state. The thread enters the halt state when it is running the HLT instruction. This event is a component in many key event ratios. The core frequency may change from time to time due to transitions associated with Enhanced Intel SpeedStep Technology or TM2. For this reason this event may have a changing ratio with regards to time. When the core frequency is constant, this event can approximate elapsed time while the core was not in the halt state. It is counted on a dedicated fixed counter, leaving the programmable counters available for other events.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x2",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of unhalted core clock cycles. [This event is alias to CPU_CLK_UNHALTED.CORE_P]",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.THREAD_P",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Thread cycles when thread is not in halt state [This event is alias to CPU_CLK_UNHALTED.CORE_P]",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x3c",
+        "EventName": "CPU_CLK_UNHALTED.THREAD_P",
+        "PublicDescription": "This is an architectural event that counts the number of thread cycles while the thread is not in a halt state. The thread enters the halt state when it is running the HLT instruction. The core frequency may change from time to time due to power or thermal throttling. For this reason, this event may have a changing ratio with regards to wall clock time. [This event is alias to CPU_CLK_UNHALTED.CORE_P]",
+        "SampleAfterValue": "2000003",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of instructions retired.",
+        "Counter": "Fixed counter 0",
+        "EventName": "INST_RETIRED.ANY",
+        "PublicDescription": "Fixed Counter: Counts the number of instructions retired. Available PDIST counters: 32",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Number of instructions retired. Fixed Counter - architectural event",
+        "Counter": "Fixed counter 0",
+        "EventName": "INST_RETIRED.ANY",
+        "PublicDescription": "Counts the number of X86 instructions retired - an Architectural PerfMon event. Counting continues during hardware interrupts, traps, and inside interrupt handlers. Notes: INST_RETIRED.ANY is counted by a designated fixed counter freeing up programmable counters to count other events. INST_RETIRED.ANY_P is counted by a programmable counter. Available PDIST counters: 32",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc0",
+        "EventName": "INST_RETIRED.ANY_P",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Number of instructions retired. General Counter - architectural event",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xc0",
+        "EventName": "INST_RETIRED.ANY_P",
+        "PublicDescription": "Counts the number of X86 instructions retired - an Architectural PerfMon event. Counting continues during hardware interrupts, traps, and inside interrupt handlers. Notes: INST_RETIRED.ANY is counted by a designated fixed counter freeing up programmable counters to count other events. INST_RETIRED.ANY_P is counted by a programmable counter. Available PDIST counters: 0",
+        "SampleAfterValue": "2000003",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of retired loads that are blocked because its address partially overlapped with an older store.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x03",
+        "EventName": "LD_BLOCKS.STORE_FORWARD",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Loads blocked due to overlapping with a preceding store that cannot be forwarded.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x03",
+        "EventName": "LD_BLOCKS.STORE_FORWARD",
+        "PublicDescription": "Counts the number of times where store forwarding was prevented for a load operation. The most common case is a load blocked due to the address of memory access (partially) overlapping with a preceding uncompleted store. Note: See the table of not supported store forwards in the Optimization Guide.",
+        "SampleAfterValue": "100003",
+        "UMask": "0x82",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of LBR entries recorded. Requires LBRs to be enabled in IA32_LBR_CTL.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xe4",
+        "EventName": "MISC_RETIRED.LBR_INSERTS",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "LBR record is inserted",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xe4",
+        "EventName": "MISC_RETIRED.LBR_INSERTS",
+        "PublicDescription": "LBR record is inserted Available PDIST counters: 0",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "This event counts a subset of the Topdown Slots event that were not consumed by the back-end pipeline due to lack of back-end resources, as a result of memory subsystem delays, execution units limitations, or other conditions.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xa4",
+        "EventName": "TOPDOWN.BACKEND_BOUND_SLOTS",
+        "PublicDescription": "This event counts a subset of the Topdown Slots event that were not consumed by the back-end pipeline due to lack of back-end resources, as a result of memory subsystem delays, execution units limitations, or other conditions. Software can use this event as the numerator for the Backend Bound metric (or top-level category) of the Top-down Microarchitecture Analysis method.",
+        "SampleAfterValue": "10000003",
+        "UMask": "0x2",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "TMA slots available for an unhalted logical processor. Fixed counter - architectural event",
+        "Counter": "Fixed counter 3",
+        "EventName": "TOPDOWN.SLOTS",
+        "PublicDescription": "Number of available slots for an unhalted logical processor. The event increments by machine-width of the narrowest pipeline as employed by the Top-down Microarchitecture Analysis method (TMA). Software can use this event as the denominator for the top-level metrics of the TMA method. This architectural event is counted on a designated fixed counter (Fixed Counter 3).",
+        "SampleAfterValue": "10000003",
+        "UMask": "0x4",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "TMA slots available for an unhalted logical processor. General counter - architectural event",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xa4",
+        "EventName": "TOPDOWN.SLOTS_P",
+        "PublicDescription": "Counts the number of available slots for an unhalted logical processor. The event increments by machine-width of the narrowest pipeline as employed by the Top-down Microarchitecture Analysis method.",
+        "SampleAfterValue": "10000003",
+        "UMask": "0x1",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of issue slots that were not consumed by the backend because allocation is stalled due to a mispredicted jump or a machine clear.",
+        "Counter": "36",
+        "EventName": "TOPDOWN_BAD_SPECULATION.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x5",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of issue slots that were not consumed by the backend because allocation is stalled due to a mispredicted jump or a machine clear.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x73",
+        "EventName": "TOPDOWN_BAD_SPECULATION.ALL_P",
+        "PublicDescription": "Counts the total number of issue slots that were not consumed by the backend because allocation is stalled due to a mispredicted jump or a machine clear. Only issue slots wasted due to fast nukes such as memory ordering nukes are counted. Other nukes are not accounted for. Counts all issue slots blocked during this recovery window, including relevant microcode flows, and while uops are not yet available in the instruction queue (IQ) or until an FE_BOUND event occurs besides OTHER and CISC. Also includes the issue slots that were consumed by the backend but were thrown away because they were younger than the mispredict or machine clear.",
+        "SampleAfterValue": "1000003",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of retirement slots not consumed due to backend stalls. [This event is alias to TOPDOWN_BE_BOUND.ALL_P]",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xa4",
+        "EventName": "TOPDOWN_BE_BOUND.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of retirement slots not consumed due to backend stalls. [This event is alias to TOPDOWN_BE_BOUND.ALL]",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xa4",
+        "EventName": "TOPDOWN_BE_BOUND.ALL_P",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of retirement slots not consumed due to front end stalls.",
+        "Counter": "37",
+        "EventName": "TOPDOWN_FE_BOUND.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x6",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of retirement slots not consumed due to front end stalls.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x9c",
+        "EventName": "TOPDOWN_FE_BOUND.ALL_P",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Fixed Counter: Counts the number of consumed retirement slots.",
+        "Counter": "38",
+        "EventName": "TOPDOWN_RETIRING.ALL",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x7",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Counts the number of consumed retirement slots.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc2",
+        "EventName": "TOPDOWN_RETIRING.ALL_P",
+        "PublicDescription": "Counts the number of consumed retirement slots. Available PDIST counters: 0,1",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "This event counts a subset of the Topdown Slots event that are utilized by operations that eventually get retired (committed) by the processor pipeline. Usually, this event positively correlates with higher performance  for example, as measured by the instructions-per-cycle metric.",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0xc2",
+        "EventName": "UOPS_RETIRED.SLOTS",
+        "PublicDescription": "This event counts a subset of the Topdown Slots event that are utilized by operations that eventually get retired (committed) by the processor pipeline. Usually, this event positively correlates with higher performance  for example, as measured by the instructions-per-cycle metric. Software can use this event as the numerator for the Retiring metric (or top-level category) of the Top-down Microarchitecture Analysis method.",
+        "SampleAfterValue": "2000003",
+        "UMask": "0x2",
+        "Unit": "cpu_core"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/pantherlake/virtual-memory.json b/tools/perf/pmu-events/arch/x86/pantherlake/virtual-memory.json
new file mode 100644
index 000000000000..690c5dff9d9e
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/pantherlake/virtual-memory.json
@@ -0,0 +1,62 @@
+[
+    {
+        "BriefDescription": "Counts the number of page walks completed due to load DTLB misses to any page size.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x08",
+        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts the number of page walks completed due to loads (including SW prefetches) whose address translations missed in all Translation Lookaside Buffer (TLB) levels and were mapped to any page size. Includes page walks that page fault.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xe",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Load miss in all TLB levels causes a page walk that completes. (All page sizes)",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x12",
+        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts completed page walks  (all page sizes) caused by demand data loads. This implies it missed in the DTLB and further levels of TLB. The page walk can end with or without a fault.",
+        "SampleAfterValue": "100003",
+        "UMask": "0xe",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of page walks completed due to store DTLB misses to any page size.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x49",
+        "EventName": "DTLB_STORE_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts the number of page walks completed due to stores whose address translations missed in all Translation Lookaside Buffer (TLB) levels and were mapped to any page size.  Includes page walks that page fault.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xe",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Store misses in all TLB levels causes a page walk that completes. (All page sizes)",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x13",
+        "EventName": "DTLB_STORE_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts completed page walks  (all page sizes) caused by demand data stores. This implies it missed in the DTLB and further levels of TLB. The page walk can end with or without a fault.",
+        "SampleAfterValue": "100003",
+        "UMask": "0xe",
+        "Unit": "cpu_core"
+    },
+    {
+        "BriefDescription": "Counts the number of page walks completed due to instruction fetch misses to any page size.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0x85",
+        "EventName": "ITLB_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts the number of page walks completed due to instruction fetches whose address translations missed in all Translation Lookaside Buffer (TLB) levels and were mapped to any page size.  Includes page walks that page fault.",
+        "SampleAfterValue": "1000003",
+        "UMask": "0xe",
+        "Unit": "cpu_atom"
+    },
+    {
+        "BriefDescription": "Code miss in all TLB levels causes a page walk that completes. (All page sizes)",
+        "Counter": "0,1,2,3,4,5,6,7,8,9",
+        "EventCode": "0x11",
+        "EventName": "ITLB_MISSES.WALK_COMPLETED",
+        "PublicDescription": "Counts completed page walks (all page sizes) caused by a code fetch. This implies it missed in the ITLB (Instruction TLB) and further levels of TLB. The page walk can end with or without a fault.",
+        "SampleAfterValue": "100003",
+        "UMask": "0xe",
+        "Unit": "cpu_core"
+    }
+]

From 8704418511944eb417e35af30da5cb4a0b3676a9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:57 -0700
Subject: [PATCH 103/179] perf vendor events: Update SapphireRapids events

Update events from v1.25 to v1.28.

Bring in the event updates v1.28:
https://github.com/intel/perfmon/commit/990bfdff270adf08d408534d6d66ba47ec6adb34
https://github.com/intel/perfmon/commit/b7b4d7f18cf9a893438777a571abc7ecc087368b

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-13-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 .../arch/x86/sapphirerapids/pipeline.json     |  2 +-
 .../arch/x86/sapphirerapids/uncore-io.json    | 12 +++++++++++
 .../x86/sapphirerapids/uncore-memory.json     | 20 +++++++++++++++++++
 4 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 252382751fa5..13eaed97b4ac 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -29,7 +29,7 @@ GenuineIntel-6-2E,v4,nehalemex,core
 GenuineIntel-6-CC,v1.00,pantherlake,core
 GenuineIntel-6-A7,v1.04,rocketlake,core
 GenuineIntel-6-2A,v19,sandybridge,core
-GenuineIntel-6-8F,v1.25,sapphirerapids,core
+GenuineIntel-6-8F,v1.28,sapphirerapids,core
 GenuineIntel-6-AF,v1.09,sierraforest,core
 GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
 GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v59,skylake,core
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/pipeline.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/pipeline.json
index 00b05a77c289..48bec483b49a 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/pipeline.json
@@ -684,7 +684,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions. Available PDIST counters: 0",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-io.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-io.json
index aab082ff9402..dac7e6c50f31 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-io.json
@@ -1901,6 +1901,18 @@
         "UMask": "0x4",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Posted requests sent by the integrated IO (IIO) controller to the Ubox, useful for counting message signaled interrupts (MSI).",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x8e",
+        "EventName": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED",
+        "Experimental": "1",
+        "FCMask": "0x01",
+        "PerPkg": "1",
+        "PortMask": "0x00FF",
+        "UMask": "0x4",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "ITC address map 1",
         "Counter": "0,1,2,3",
diff --git a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
index aa06088dd26f..68be01dad7c9 100644
--- a/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
+++ b/tools/perf/pmu-events/arch/x86/sapphirerapids/uncore-memory.json
@@ -2145,6 +2145,16 @@
         "UMask": "0x1",
         "Unit": "MCHBM"
     },
+    {
+        "BriefDescription": "ECC Correctable Errors",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x09",
+        "EventName": "UNC_MCHBM_ECC_CORRECTABLE_ERRORS",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "ECC Correctable Errors.  Counts the number of ECC errors detected and corrected by the iMC on this channel.  This counter is only useful with ECC devices.  This count will increment one time for each correction regardless of the number of bits corrected.  The iMC can correct up to 4 bit errors in independent channel mode and 8 bit errors in lockstep mode.",
+        "Unit": "MCHBM"
+    },
     {
         "BriefDescription": "HBM Precharge All Commands",
         "Counter": "0,1,2,3",
@@ -2759,6 +2769,16 @@
         "UMask": "0x3",
         "Unit": "iMC"
     },
+    {
+        "BriefDescription": "ECC Correctable Errors",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x09",
+        "EventName": "UNC_M_ECC_CORRECTABLE_ERRORS",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "ECC Correctable Errors : Counts the number of ECC errors detected and corrected by the iMC on this channel.  This counter is only useful with ECC DRAM devices.  This count will increment one time for each correction regardless of the number of bits corrected.  The iMC can correct up to 4 bit errors in independent channel mode and 8 bit errors in lockstep mode.",
+        "Unit": "iMC"
+    },
     {
         "BriefDescription": "IMC Clockticks at HCLK frequency",
         "Counter": "0,1,2,3",

From 336473ad0771890fc4106da08efa3cef4b30b106 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:58 -0700
Subject: [PATCH 104/179] perf vendor events: Update SierraForest events

Update events from v1.09 to v1.11.

Bring in the event updates v1.11:
https://github.com/intel/perfmon/commit/6b824df1dba3948146281c8ba2a8c3e7bf7f7c51
https://github.com/intel/perfmon/commit/4b0346fbee2b04dd34526522250116aee525c922

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-14-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv    |  2 +-
 .../arch/x86/sierraforest/frontend.json       | 64 +++++++++++++++++++
 .../arch/x86/sierraforest/pipeline.json       |  8 +++
 .../arch/x86/sierraforest/srf-metrics.json    | 48 ++++++++++++++
 .../arch/x86/sierraforest/uncore-cache.json   |  6 +-
 .../x86/sierraforest/uncore-interconnect.json | 53 ++++++++++++---
 .../arch/x86/sierraforest/uncore-io.json      | 27 +++++++-
 7 files changed, 194 insertions(+), 14 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 13eaed97b4ac..54c2cfb0af9c 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -30,7 +30,7 @@ GenuineIntel-6-CC,v1.00,pantherlake,core
 GenuineIntel-6-A7,v1.04,rocketlake,core
 GenuineIntel-6-2A,v19,sandybridge,core
 GenuineIntel-6-8F,v1.28,sapphirerapids,core
-GenuineIntel-6-AF,v1.09,sierraforest,core
+GenuineIntel-6-AF,v1.11,sierraforest,core
 GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
 GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v59,skylake,core
 GenuineIntel-6-55-[01234],v1.36,skylakex,core
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/frontend.json b/tools/perf/pmu-events/arch/x86/sierraforest/frontend.json
index fef5cba533bb..8a591e31d331 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/frontend.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/frontend.json
@@ -8,6 +8,54 @@
         "SampleAfterValue": "200003",
         "UMask": "0x1"
     },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged with having preceded with frontend bound behavior",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ALL",
+        "SampleAfterValue": "1000003"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a baclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_DETECT",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x2"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles /empty issue slots due to a btclear",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.BRANCH_RESTEER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x40"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.CISC",
+        "PublicDescription": "Counts the number of  instructions retired that were tagged following an ms flow due to the bubble/wasted issue slot from exiting long ms flow",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x1"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged every cycle the decoder is unable to send 3 uops per cycle.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.DECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x8"
+    },
+    {
+        "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to icache miss",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.ICACHE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x20"
+    },
     {
         "BriefDescription": "Counts the number of instructions retired that were tagged because empty issue slots were seen before the uop due to ITLB miss",
         "Counter": "0,1,2,3,4,5,6,7",
@@ -16,6 +64,22 @@
         "SampleAfterValue": "1000003",
         "UMask": "0x10"
     },
+    {
+        "BriefDescription": "Counts the number of instruction retired tagged after a wasted issue slot if none of the previous events occurred",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.OTHER",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x80"
+    },
+    {
+        "BriefDescription": "Counts the number of instruction retired that are tagged after a branch instruction causes bubbles/empty issue slots due to a predecode wrong.",
+        "Counter": "0,1,2,3,4,5,6,7",
+        "EventCode": "0xc6",
+        "EventName": "FRONTEND_RETIRED.PREDECODE",
+        "SampleAfterValue": "1000003",
+        "UMask": "0x4"
+    },
     {
         "BriefDescription": "Counts every time the code stream enters into a new cache line by walking sequential from the previous line or being redirected by a jump.",
         "Counter": "0,1,2,3,4,5,6,7",
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/pipeline.json b/tools/perf/pmu-events/arch/x86/sierraforest/pipeline.json
index f56d8d816e53..70af13143024 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/pipeline.json
@@ -11,6 +11,7 @@
     {
         "BriefDescription": "Counts the total number of branch instructions retired for all branch types.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF6, SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
         "PublicDescription": "Counts the total number of instructions in which the instruction pointer (IP) of the processor is resteered due to a branch instruction and the branch instruction successfully retires.  All branch type instructions are accounted for.",
@@ -19,6 +20,7 @@
     {
         "BriefDescription": "Counts the number of retired JCC (Jump on Conditional Code) branch instructions retired, includes both taken and not taken branches.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.COND",
         "SampleAfterValue": "200003",
@@ -35,6 +37,7 @@
     {
         "BriefDescription": "Counts the number of far branch instructions retired, includes far jump, far call and return, and interrupt call and return.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.FAR_BRANCH",
         "SampleAfterValue": "200003",
@@ -43,6 +46,7 @@
     {
         "BriefDescription": "Counts the number of near indirect JMP and near indirect CALL branch instructions retired.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT",
         "SampleAfterValue": "200003",
@@ -51,6 +55,7 @@
     {
         "BriefDescription": "Counts the number of near indirect CALL branch instructions retired.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.INDIRECT_CALL",
         "SampleAfterValue": "200003",
@@ -68,6 +73,7 @@
         "BriefDescription": "This event is deprecated. Refer to new event BR_INST_RETIRED.INDIRECT_CALL",
         "Counter": "0,1,2,3,4,5,6,7",
         "Deprecated": "1",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.IND_CALL",
         "SampleAfterValue": "200003",
@@ -76,6 +82,7 @@
     {
         "BriefDescription": "Counts the number of near CALL branch instructions retired.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF6, SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_CALL",
         "SampleAfterValue": "200003",
@@ -92,6 +99,7 @@
     {
         "BriefDescription": "Counts the number of near taken branch instructions retired.",
         "Counter": "0,1,2,3,4,5,6,7",
+        "Errata": "SRF7",
         "EventCode": "0xc4",
         "EventName": "BR_INST_RETIRED.NEAR_TAKEN",
         "SampleAfterValue": "200003",
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/srf-metrics.json b/tools/perf/pmu-events/arch/x86/sierraforest/srf-metrics.json
index ef629e4e91ce..b9f3c611d87b 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/srf-metrics.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/srf-metrics.json
@@ -61,6 +61,18 @@
         "MetricName": "cpi",
         "ScaleUnit": "1per_instr"
     },
+    {
+        "BriefDescription": "The average number of cores that are in cstate C0 as observed by the power control unit (PCU)",
+        "MetricExpr": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C0 / pcu_0@UNC_P_CLOCKTICKS@ * #num_packages",
+        "MetricGroup": "cpu_cstate",
+        "MetricName": "cpu_cstate_c0"
+    },
+    {
+        "BriefDescription": "The average number of cores that are in cstate C6 as observed by the power control unit (PCU)",
+        "MetricExpr": "UNC_P_POWER_STATE_OCCUPANCY_CORES_C6 / pcu_0@UNC_P_CLOCKTICKS@ * #num_packages",
+        "MetricGroup": "cpu_cstate",
+        "MetricName": "cpu_cstate_c6"
+    },
     {
         "BriefDescription": "CPU operating frequency (in GHz)",
         "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC * #SYSTEM_TSC_FREQ / 1e9",
@@ -112,6 +124,12 @@
         "MetricName": "io_bandwidth_read",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "Bandwidth of inbound IO reads that are initiated by end device controllers that are requesting memory from the CPU and miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_PCIRDCUR * 64 / 1e6 / duration_time",
+        "MetricName": "io_bandwidth_read_l3_miss",
+        "ScaleUnit": "1MB/s"
+    },
     {
         "BriefDescription": "Bandwidth of IO reads that are initiated by end device controllers that are requesting memory from the local CPU socket",
         "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_PCIRDCUR_LOCAL * 64 / 1e6 / duration_time",
@@ -130,6 +148,12 @@
         "MetricName": "io_bandwidth_write",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "Bandwidth of inbound IO writes that are initiated by end device controllers that are writing memory to the CPU",
+        "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_MISS_ITOM + UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR) * 64 / 1e6 / duration_time",
+        "MetricName": "io_bandwidth_write_l3_miss",
+        "ScaleUnit": "1MB/s"
+    },
     {
         "BriefDescription": "Bandwidth of IO writes that are initiated by end device controllers that are writing memory to the local CPU socket",
         "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_ITOM_LOCAL + UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR_LOCAL) * 64 / 1e6 / duration_time",
@@ -142,6 +166,30 @@
         "MetricName": "io_bandwidth_write_remote",
         "ScaleUnit": "1MB/s"
     },
+    {
+        "BriefDescription": "The percent of inbound full cache line writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_ITOM / UNC_CHA_TOR_INSERTS.IO_ITOM",
+        "MetricName": "io_full_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "Message Signaled Interrupts (MSI) per second sent by the integrated I/O traffic controller (IIO) to System Configuration Controller (Ubox)",
+        "MetricExpr": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED / duration_time",
+        "MetricName": "io_msi",
+        "ScaleUnit": "1per_sec"
+    },
+    {
+        "BriefDescription": "The percent of inbound partial writes initiated by IO that miss the L3 cache",
+        "MetricExpr": "(UNC_CHA_TOR_INSERTS.IO_MISS_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_MISS_RFO) / (UNC_CHA_TOR_INSERTS.IO_ITOMCACHENEAR + UNC_CHA_TOR_INSERTS.IO_RFO)",
+        "MetricName": "io_partial_write_l3_miss",
+        "ScaleUnit": "100%"
+    },
+    {
+        "BriefDescription": "The percent of inbound reads initiated by IO that miss the L3 cache",
+        "MetricExpr": "UNC_CHA_TOR_INSERTS.IO_MISS_PCIRDCUR / UNC_CHA_TOR_INSERTS.IO_PCIRDCUR",
+        "MetricName": "io_read_l3_miss",
+        "ScaleUnit": "100%"
+    },
     {
         "BriefDescription": "Ratio of number of completed page walks (for 2 megabyte and 4 megabyte page sizes) caused by a code fetch to the total number of completed instructions",
         "MetricExpr": "ITLB_MISSES.WALK_COMPLETED_2M_4M / INST_RETIRED.ANY",
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-cache.json b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-cache.json
index 7182ca00ef8d..3d1fb5f0417e 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-cache.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-cache.json
@@ -874,7 +874,7 @@
         "Unit": "CHA"
     },
     {
-        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking exclusive lines in the cores? cache.? Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry.? Does not count clean evictions such as when a core?s cache replaces a tracked cacheline with a new cacheline.",
+        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking exclusive lines in the core's cache. Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry. Does not count clean evictions such as when a core's cache replaces a tracked cacheline with a new cacheline.",
         "Counter": "0,1,2,3",
         "EventCode": "0x3d",
         "EventName": "UNC_CHA_SF_EVICTION.E_STATE",
@@ -885,7 +885,7 @@
         "Unit": "CHA"
     },
     {
-        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking modified lines in the cores? cache.? Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry.? Does not count clean evictions such as when a core?s cache replaces a tracked cacheline with a new cacheline.",
+        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking modified lines in the core's cache. Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry. Does not count clean evictions such as when a core's cache replaces a tracked cacheline with a new cacheline.",
         "Counter": "0,1,2,3",
         "EventCode": "0x3d",
         "EventName": "UNC_CHA_SF_EVICTION.M_STATE",
@@ -895,7 +895,7 @@
         "Unit": "CHA"
     },
     {
-        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking shared lines in the cores? cache.? Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry.? Does not count clean evictions such as when a core?s cache replaces a tracked cacheline with a new cacheline.",
+        "BriefDescription": "Counts snoop filter capacity evictions for entries tracking shared lines in the core's cache. Snoop filter capacity evictions occur when the snoop filter is full and evicts an existing entry to track a new entry. Does not count clean evictions such as when a core's cache replaces a tracked cacheline with a new cacheline.",
         "Counter": "0,1,2,3",
         "EventCode": "0x3d",
         "EventName": "UNC_CHA_SF_EVICTION.S_STATE",
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-interconnect.json b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-interconnect.json
index 2ccbc8bca24e..952b6de3fefc 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-interconnect.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-interconnect.json
@@ -1562,21 +1562,56 @@
         "Unit": "UPI"
     },
     {
-        "BriefDescription": "Tx Flit Buffer Allocations : Number of allocations into the UPI Tx Flit Buffer.  Generally, when data is transmitted across UPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link.  This event can be used in conjunction with the Flit Buffer Occupancy event in order to calculate the average flit buffer lifetime.",
-        "Counter": "0,1,2,3",
-        "EventCode": "0x40",
-        "EventName": "UNC_UPI_TxL_INSERTS",
+        "BriefDescription": "Message Received : Doorbell",
+        "Counter": "0,1",
+        "EventCode": "0x42",
+        "EventName": "UNC_U_EVENT_MSG.DOORBELL_RCVD",
         "Experimental": "1",
         "PerPkg": "1",
-        "Unit": "UPI"
+        "UMask": "0x8",
+        "Unit": "UBOX"
     },
     {
-        "BriefDescription": "Tx Flit Buffer Occupancy : Accumulates the number of flits in the TxQ.  Generally, when data is transmitted across UPI, it will bypass the TxQ and pass directly to the link.  However, the TxQ will be used with L0p and when LLR occurs, increasing latency to transfer out to the link. This can be used with the cycles not empty event to track average occupancy, or the allocations event to track average lifetime in the TxQ.",
-        "Counter": "0,1,2,3",
+        "BriefDescription": "Message Received : Interrupt",
+        "Counter": "0,1",
         "EventCode": "0x42",
-        "EventName": "UNC_UPI_TxL_OCCUPANCY",
+        "EventName": "UNC_U_EVENT_MSG.INT_PRIO",
         "Experimental": "1",
         "PerPkg": "1",
-        "Unit": "UPI"
+        "PublicDescription": "Message Received : Interrupt : Interrupts",
+        "UMask": "0x10",
+        "Unit": "UBOX"
+    },
+    {
+        "BriefDescription": "Message Received : IPI",
+        "Counter": "0,1",
+        "EventCode": "0x42",
+        "EventName": "UNC_U_EVENT_MSG.IPI_RCVD",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "Message Received : IPI : Inter Processor Interrupts",
+        "UMask": "0x4",
+        "Unit": "UBOX"
+    },
+    {
+        "BriefDescription": "Message Received : MSI",
+        "Counter": "0,1",
+        "EventCode": "0x42",
+        "EventName": "UNC_U_EVENT_MSG.MSI_RCVD",
+        "PerPkg": "1",
+        "PublicDescription": "Message Received : MSI : Message Signaled Interrupts - interrupts sent by devices (including PCIe via IOxAPIC) (Socket Mode only)",
+        "UMask": "0x2",
+        "Unit": "UBOX"
+    },
+    {
+        "BriefDescription": "Message Received : VLW",
+        "Counter": "0,1",
+        "EventCode": "0x42",
+        "EventName": "UNC_U_EVENT_MSG.VLW_RCVD",
+        "Experimental": "1",
+        "PerPkg": "1",
+        "PublicDescription": "Message Received : VLW : Virtual Logical Wire (legacy) message were received from Uncore.",
+        "UMask": "0x1",
+        "Unit": "UBOX"
     }
 ]
diff --git a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-io.json b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-io.json
index 886b99a971be..f4f956966e16 100644
--- a/tools/perf/pmu-events/arch/x86/sierraforest/uncore-io.json
+++ b/tools/perf/pmu-events/arch/x86/sierraforest/uncore-io.json
@@ -1121,8 +1121,9 @@
         "Unit": "IIO"
     },
     {
-        "BriefDescription": "Occupancy of outbound request queue : To device : Counts number of outbound requests/completions IIO is currently processing",
+        "BriefDescription": "This event is deprecated. [This event is alias to UNC_IIO_NUM_OUTSTANDING_REQ_FROM_CPU.TO_IO]",
         "Counter": "2,3",
+        "Deprecated": "1",
         "EventCode": "0xc5",
         "EventName": "UNC_IIO_NUM_OUSTANDING_REQ_FROM_CPU.TO_IO",
         "Experimental": "1",
@@ -1132,6 +1133,18 @@
         "UMask": "0x8",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Occupancy of outbound request queue : To device : Counts number of outbound requests/completions IIO is currently processing [This event is alias to UNC_IIO_NUM_OUSTANDING_REQ_FROM_CPU.TO_IO]",
+        "Counter": "2,3",
+        "EventCode": "0xc5",
+        "EventName": "UNC_IIO_NUM_OUTSTANDING_REQ_FROM_CPU.TO_IO",
+        "Experimental": "1",
+        "FCMask": "0x07",
+        "PerPkg": "1",
+        "PortMask": "0x0FF",
+        "UMask": "0x8",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "Passing data to be written",
         "Counter": "0,1,2,3",
@@ -1300,6 +1313,18 @@
         "UMask": "0x4",
         "Unit": "IIO"
     },
+    {
+        "BriefDescription": "Posted requests sent by the integrated IO (IIO) controller to the Ubox, useful for counting message signaled interrupts (MSI).",
+        "Counter": "0,1,2,3",
+        "EventCode": "0x8e",
+        "EventName": "UNC_IIO_NUM_REQ_OF_CPU_BY_TGT.UBOX_POSTED",
+        "FCMask": "0x01",
+        "PerPkg": "1",
+        "PortMask": "0x0FF",
+        "PublicDescription": "-",
+        "UMask": "0x4",
+        "Unit": "IIO"
+    },
     {
         "BriefDescription": "All 9 bits of Page Walk Tracker Occupancy",
         "Counter": "0,1,2,3",

From 80c6b82226c1d34e6bcad8e88c4cf319b43d5d3a Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:30:59 -0700
Subject: [PATCH 105/179] perf vendor events: Update SkylakeX events

Update events from v1.36 to v1.37.

Bring in the event updates v1.37:
https://github.com/intel/perfmon/commit/6ee8e4cadda8b6954bd84236e20fab95e345578f

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-15-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv            | 2 +-
 tools/perf/pmu-events/arch/x86/skylakex/pipeline.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 54c2cfb0af9c..2d9699efff58 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -33,7 +33,7 @@ GenuineIntel-6-8F,v1.28,sapphirerapids,core
 GenuineIntel-6-AF,v1.11,sierraforest,core
 GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
 GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v59,skylake,core
-GenuineIntel-6-55-[01234],v1.36,skylakex,core
+GenuineIntel-6-55-[01234],v1.37,skylakex,core
 GenuineIntel-6-86,v1.23,snowridgex,core
 GenuineIntel-6-8[CD],v1.17,tigerlake,core
 GenuineIntel-6-2C,v5,westmereep-dp,core
diff --git a/tools/perf/pmu-events/arch/x86/skylakex/pipeline.json b/tools/perf/pmu-events/arch/x86/skylakex/pipeline.json
index 3dd296ab4d78..9a1349527b66 100644
--- a/tools/perf/pmu-events/arch/x86/skylakex/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/skylakex/pipeline.json
@@ -542,7 +542,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4C",
         "EventName": "LOAD_HIT_PRE.SW_PF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },

From 585189332afe02c99e66c6a0d328fe05e456ff6a Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 30 Jun 2025 09:31:00 -0700
Subject: [PATCH 106/179] perf vendor events: Update TigerLake events

Update events from v1.17 to v1.18.

Bring in the event updates v1.18:
https://github.com/intel/perfmon/commit/943fea37d0d54232605f12abf72a812ac314cd1d

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Falcon <thomas.falcon@intel.com>
Link: https://lore.kernel.org/r/20250630163101.1920170-16-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/arch/x86/mapfile.csv             | 2 +-
 tools/perf/pmu-events/arch/x86/tigerlake/pipeline.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 2d9699efff58..354ce241500b 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -35,7 +35,7 @@ GenuineIntel-6-(37|4A|4C|4D|5A),v15,silvermont,core
 GenuineIntel-6-(4E|5E|8E|9E|A5|A6),v59,skylake,core
 GenuineIntel-6-55-[01234],v1.37,skylakex,core
 GenuineIntel-6-86,v1.23,snowridgex,core
-GenuineIntel-6-8[CD],v1.17,tigerlake,core
+GenuineIntel-6-8[CD],v1.18,tigerlake,core
 GenuineIntel-6-2C,v5,westmereep-dp,core
 GenuineIntel-6-25,v4,westmereep-sp,core
 GenuineIntel-6-2F,v4,westmereex,core
diff --git a/tools/perf/pmu-events/arch/x86/tigerlake/pipeline.json b/tools/perf/pmu-events/arch/x86/tigerlake/pipeline.json
index 7ef1bac08463..b417e1db9e07 100644
--- a/tools/perf/pmu-events/arch/x86/tigerlake/pipeline.json
+++ b/tools/perf/pmu-events/arch/x86/tigerlake/pipeline.json
@@ -497,7 +497,7 @@
         "Counter": "0,1,2,3",
         "EventCode": "0x4c",
         "EventName": "LOAD_HIT_PREFETCH.SWPF",
-        "PublicDescription": "Counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
+        "PublicDescription": "Counts all software-prefetch load dispatches that hit the fill buffer (FB) allocated for the software prefetch. It can also be incremented by some lock instructions. So it should only be used with profiling so that the locks can be excluded by ASM (Assembly File) inspection of the nearby instructions.",
         "SampleAfterValue": "100003",
         "UMask": "0x1"
     },

From a12a23720c135a299ed914adf623387c7404e014 Mon Sep 17 00:00:00 2001
From: Thomas Richter <tmricht@linux.ibm.com>
Date: Wed, 9 Jul 2025 09:24:52 +0200
Subject: [PATCH 107/179] perf list: Remove trailing A in PAI crypto event 4210

According to the z16 and z17 Principle of Operation documents
SA22-7832-13 and SA22-7832-14 the event 4210 is named
   PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256
without a trailing 'A'. Adjust the json definition files
for this event and remove the trailing 'A' character.
   PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256A

Also remove a black ' ' between the dash '-' and the number:
   xxx-AES- 192 ----> xxx-AES-192

Suggested-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Link: https://lore.kernel.org/r/20250709072452.1595257-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../pmu-events/arch/s390/cf_z16/pai_crypto.json    | 14 +++++++-------
 .../pmu-events/arch/s390/cf_z17/pai_crypto.json    |  6 +++---
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/perf/pmu-events/arch/s390/cf_z16/pai_crypto.json b/tools/perf/pmu-events/arch/s390/cf_z16/pai_crypto.json
index cf8563d059b9..a82674f62409 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z16/pai_crypto.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z16/pai_crypto.json
@@ -753,14 +753,14 @@
 		"EventCode": "4203",
 		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_TDEA_128",
 		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED TDEA 128",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA- 128 function ending with CC=0"
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA-128 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",
 		"EventCode": "4204",
 		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_TDEA_192",
 		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED TDEA 192",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA- 192 function ending with CC=0"
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-TDEA-192 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",
@@ -788,21 +788,21 @@
 		"EventCode": "4208",
 		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_128",
 		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 128",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES- 128 function ending with CC=0"
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-128 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",
 		"EventCode": "4209",
 		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_192",
 		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 192",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES- 192 function ending with CC=0"
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-192 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",
 		"EventCode": "4210",
-		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256A",
-		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 256A",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES- 256A function ending with CC=0"
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 256",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-256 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",
diff --git a/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json b/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
index a7176c988b8a..fd2eb536ecc7 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z17/pai_crypto.json
@@ -800,9 +800,9 @@
 	{
 		"Unit": "PAI-CRYPTO",
 		"EventCode": "4210",
-		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256A",
-		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 256A",
-		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-256A function ending with CC=0"
+		"EventName": "PCC_COMPUTE_LAST_BLOCK_CMAC_USING_ENCRYPTED_AES_256",
+		"BriefDescription": "PCC COMPUTE LAST BLOCK CMAC USING ENCRYPTED AES 256",
+		"PublicDescription": "PCC-Compute-Last-Block-CMAC-Using-Encrypted-AES-256 function ending with CC=0"
 	},
 	{
 		"Unit": "PAI-CRYPTO",

From 4a6cdecaa1497f1fbbd1d5307a225b6ca5a62a90 Mon Sep 17 00:00:00 2001
From: Leo Yan <leo.yan@arm.com>
Date: Fri, 11 Jul 2025 12:10:15 +0100
Subject: [PATCH 108/179] perf tests bp_account: Fix leaked file descriptor

Since the commit e9846f5ead26 ("perf test: In forked mode add check that
fds aren't leaked"), the test "Breakpoint accounting" reports the error:

  # perf test -vvv "Breakpoint accounting"
  20: Breakpoint accounting:
  --- start ---
  test child forked, pid 373
  failed opening event 0
  failed opening event 0
  watchpoints count 4, breakpoints count 6, has_ioctl 1, share 0
  wp 0 created
  wp 1 created
  wp 2 created
  wp 3 created
  wp 0 modified to bp
  wp max created
  ---- end(0) ----
  Leak of file descriptor 7 that opened: 'anon_inode:[perf_event]'

A watchpoint's file descriptor was not properly released. This patch
fixes the leak.

Fixes: 032db28e5fa3 ("perf tests: Add breakpoint accounting/modify test")
Reported-by: Aishwarya TCV <aishwarya.tcv@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250711-perf_fix_breakpoint_accounting-v1-1-b314393023f9@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/bp_account.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/tests/bp_account.c b/tools/perf/tests/bp_account.c
index 4cb7d486b5c1..047433c977bc 100644
--- a/tools/perf/tests/bp_account.c
+++ b/tools/perf/tests/bp_account.c
@@ -104,6 +104,7 @@ static int bp_accounting(int wp_cnt, int share)
 		fd_wp = wp_event((void *)&the_var, &attr_new);
 		TEST_ASSERT_VAL("failed to create max wp\n", fd_wp != -1);
 		pr_debug("wp max created\n");
+		close(fd_wp);
 	}
 
 	for (i = 0; i < wp_cnt; i++)

From 28f5aa8184c9c9b8eab35fa3884c416fe75e88e4 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:14 -0700
Subject: [PATCH 109/179] perf hwmon_pmu: Avoid shortening hwmon PMU name

Long names like ucsi_source_psy_USBC000:001 when prefixed with hwmon_
exceed the buffer size and the last digit is lost. This causes
confusion with similar names like ucsi_source_psy_USBC000:002. Extend
the buffer size to avoid this.

Fixes: 53cc0b351ec9 ("perf hwmon_pmu: Add a tool PMU exposing events from hwmon in sysfs")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/hwmon_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/hwmon_pmu.c b/tools/perf/util/hwmon_pmu.c
index 7edda010ba27..416dfea9ffff 100644
--- a/tools/perf/util/hwmon_pmu.c
+++ b/tools/perf/util/hwmon_pmu.c
@@ -345,7 +345,7 @@ static int hwmon_pmu__read_events(struct hwmon_pmu *pmu)
 struct perf_pmu *hwmon_pmu__new(struct list_head *pmus, const char *hwmon_dir,
 				const char *sysfs_name, const char *name)
 {
-	char buf[32];
+	char buf[64];
 	struct hwmon_pmu *hwm;
 	__u32 type = PERF_PMU_TYPE_HWMON_START + strtoul(sysfs_name + 5, NULL, 10);
 

From 679c098cd2db458b1899e4410150d41a550ec6d6 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:15 -0700
Subject: [PATCH 110/179] perf parse-events: Minor tidy up of event_type helper

Add missing breakpoint and raw types. Avoid a switch, just use a
lookup array. Switch the type to unsigned to avoid checking negative
values.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 31 +++++++++++++------------------
 tools/perf/util/parse-events.h |  2 +-
 2 files changed, 14 insertions(+), 19 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4cd64ffa4fcd..a59ae5ca0f89 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -135,26 +135,21 @@ const struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
 	},
 };
 
-const char *event_type(int type)
+static const char *const event_types[] = {
+	[PERF_TYPE_HARDWARE]	= "hardware",
+	[PERF_TYPE_SOFTWARE]	= "software",
+	[PERF_TYPE_TRACEPOINT]	= "tracepoint",
+	[PERF_TYPE_HW_CACHE]	= "hardware-cache",
+	[PERF_TYPE_RAW]		= "raw",
+	[PERF_TYPE_BREAKPOINT]	= "breakpoint",
+};
+
+const char *event_type(size_t type)
 {
-	switch (type) {
-	case PERF_TYPE_HARDWARE:
-		return "hardware";
+	if (type >= PERF_TYPE_MAX)
+		return "unknown";
 
-	case PERF_TYPE_SOFTWARE:
-		return "software";
-
-	case PERF_TYPE_TRACEPOINT:
-		return "tracepoint";
-
-	case PERF_TYPE_HW_CACHE:
-		return "hardware-cache";
-
-	default:
-		break;
-	}
-
-	return "unknown";
+	return event_types[type];
 }
 
 static char *get_config_str(const struct parse_events_terms *head_terms,
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 1c20ed0879aa..b47bf2810112 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -21,7 +21,7 @@ struct option;
 struct perf_pmu;
 struct strbuf;
 
-const char *event_type(int type);
+const char *event_type(size_t type);
 
 /* Arguments encoded in opt->value. */
 struct parse_events_option_args {

From bcc7693ad100ef9c778621edee2295b8c02f2271 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:16 -0700
Subject: [PATCH 111/179] perf spark: Fix includes and add SPDX

scnprintf is declared in linux/kernel.h, directly depend upon it.
Add missing SPDX comments.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/spark.c | 8 +++-----
 tools/perf/util/spark.h | 1 +
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/spark.c b/tools/perf/util/spark.c
index 70272a8b81a6..65ca253cc22e 100644
--- a/tools/perf/util/spark.c
+++ b/tools/perf/util/spark.c
@@ -1,9 +1,7 @@
-#include <stdio.h>
-#include <limits.h>
-#include <string.h>
-#include <stdlib.h>
+// SPDX-License-Identifier: GPL-2.0
 #include "spark.h"
-#include "stat.h"
+#include <limits.h>
+#include <linux/kernel.h>
 
 #define SPARK_SHIFT 8
 
diff --git a/tools/perf/util/spark.h b/tools/perf/util/spark.h
index 25402d7d7a64..78597c38ef35 100644
--- a/tools/perf/util/spark.h
+++ b/tools/perf/util/spark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SPARK_H
 #define SPARK_H 1
 

From 8c75dc742089c702cab6d0f21be80c5ddd3c6067 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:17 -0700
Subject: [PATCH 112/179] perf pmu: Tolerate failure to read the type for
 wellknown PMUs

If sysfs isn't mounted then we may fail to read a PMU's type. In this
situation resort to lookup of wellknown types. Only applies to
software, tracepoint and breakpoint PMUs.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pmu.c | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f795883c233f..23666883049d 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1182,6 +1182,32 @@ int perf_pmu__init(struct perf_pmu *pmu, __u32 type, const char *name)
 	return 0;
 }
 
+static __u32 wellknown_pmu_type(const char *pmu_name)
+{
+	struct {
+		const char *pmu_name;
+		__u32 type;
+	} wellknown_pmus[] = {
+		{
+			"software",
+			PERF_TYPE_SOFTWARE
+		},
+		{
+			"tracepoint",
+			PERF_TYPE_TRACEPOINT
+		},
+		{
+			"breakpoint",
+			PERF_TYPE_BREAKPOINT
+		},
+	};
+	for (size_t i = 0; i < ARRAY_SIZE(wellknown_pmus); i++) {
+		if (!strcmp(wellknown_pmus[i].pmu_name, pmu_name))
+			return wellknown_pmus[i].type;
+	}
+	return PERF_TYPE_MAX;
+}
+
 struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char *name,
 				  bool eager_load)
 {
@@ -1201,8 +1227,12 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char
 	 * that type value is successfully assigned (return 1).
 	 */
 	if (perf_pmu__scan_file_at(pmu, dirfd, "type", "%u", &pmu->type) != 1) {
-		perf_pmu__delete(pmu);
-		return NULL;
+		/* Double check the PMU's name isn't wellknown. */
+		pmu->type = wellknown_pmu_type(name);
+		if (pmu->type == PERF_TYPE_MAX) {
+			perf_pmu__delete(pmu);
+			return NULL;
+		}
 	}
 
 	/*

From cb336b6aaeb44be281df9a03684ddeadd3afab60 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:18 -0700
Subject: [PATCH 113/179] perf metricgroup: Factor out for-each function and
 move out printing

Factor metricgroup__for_each_metric into its own function handling
regular and sys metrics. Make the metric adding and printing code use
it, move the printing code into print-events files.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/metricgroup.c  | 241 ++++-----------------------------
 tools/perf/util/metricgroup.h  |   3 +-
 tools/perf/util/print-events.c | 133 ++++++++++++++++++
 tools/perf/util/print-events.h |   2 +
 4 files changed, 165 insertions(+), 214 deletions(-)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 43d35f956a33..ddd5c362d183 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -384,107 +384,6 @@ static bool match_pm_metric_or_groups(const struct pmu_metric *pm, const char *p
 	       match_metric_or_groups(pm->metric_name, metric_or_groups);
 }
 
-/** struct mep - RB-tree node for building printing information. */
-struct mep {
-	/** nd - RB-tree element. */
-	struct rb_node nd;
-	/** @metric_group: Owned metric group name, separated others with ';'. */
-	char *metric_group;
-	const char *metric_name;
-	const char *metric_desc;
-	const char *metric_long_desc;
-	const char *metric_expr;
-	const char *metric_threshold;
-	const char *metric_unit;
-	const char *pmu_name;
-};
-
-static int mep_cmp(struct rb_node *rb_node, const void *entry)
-{
-	struct mep *a = container_of(rb_node, struct mep, nd);
-	struct mep *b = (struct mep *)entry;
-	int ret;
-
-	ret = strcmp(a->metric_group, b->metric_group);
-	if (ret)
-		return ret;
-
-	return strcmp(a->metric_name, b->metric_name);
-}
-
-static struct rb_node *mep_new(struct rblist *rl __maybe_unused, const void *entry)
-{
-	struct mep *me = malloc(sizeof(struct mep));
-
-	if (!me)
-		return NULL;
-
-	memcpy(me, entry, sizeof(struct mep));
-	return &me->nd;
-}
-
-static void mep_delete(struct rblist *rl __maybe_unused,
-		       struct rb_node *nd)
-{
-	struct mep *me = container_of(nd, struct mep, nd);
-
-	zfree(&me->metric_group);
-	free(me);
-}
-
-static struct mep *mep_lookup(struct rblist *groups, const char *metric_group,
-			      const char *metric_name)
-{
-	struct rb_node *nd;
-	struct mep me = {
-		.metric_group = strdup(metric_group),
-		.metric_name = metric_name,
-	};
-	nd = rblist__find(groups, &me);
-	if (nd) {
-		free(me.metric_group);
-		return container_of(nd, struct mep, nd);
-	}
-	rblist__add_node(groups, &me);
-	nd = rblist__find(groups, &me);
-	if (nd)
-		return container_of(nd, struct mep, nd);
-	return NULL;
-}
-
-static int metricgroup__add_to_mep_groups(const struct pmu_metric *pm,
-					struct rblist *groups)
-{
-	const char *g;
-	char *omg, *mg;
-
-	mg = strdup(pm->metric_group ?: pm->metric_name);
-	if (!mg)
-		return -ENOMEM;
-	omg = mg;
-	while ((g = strsep(&mg, ";")) != NULL) {
-		struct mep *me;
-
-		g = skip_spaces(g);
-		if (strlen(g))
-			me = mep_lookup(groups, g, pm->metric_name);
-		else
-			me = mep_lookup(groups, pm->metric_name, pm->metric_name);
-
-		if (me) {
-			me->metric_desc = pm->desc;
-			me->metric_long_desc = pm->long_desc;
-			me->metric_expr = pm->metric_expr;
-			me->metric_threshold = pm->metric_threshold;
-			me->metric_unit = pm->unit;
-			me->pmu_name = pm->pmu;
-		}
-	}
-	free(omg);
-
-	return 0;
-}
-
 struct metricgroup_iter_data {
 	pmu_metric_iter_fn fn;
 	void *data;
@@ -510,54 +409,22 @@ static int metricgroup__sys_event_iter(const struct pmu_metric *pm,
 	return 0;
 }
 
-static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm,
-					const struct pmu_metrics_table *table __maybe_unused,
-					void *vdata)
+int metricgroup__for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
+				 void *data)
 {
-	struct rblist *groups = vdata;
+	struct metricgroup_iter_data sys_data = {
+		.fn = fn,
+		.data = data,
+	};
 
-	return metricgroup__add_to_mep_groups(pm, groups);
-}
-
-void metricgroup__print(const struct print_callbacks *print_cb, void *print_state)
-{
-	struct rblist groups;
-	const struct pmu_metrics_table *table;
-	struct rb_node *node, *next;
-
-	rblist__init(&groups);
-	groups.node_new = mep_new;
-	groups.node_cmp = mep_cmp;
-	groups.node_delete = mep_delete;
-	table = pmu_metrics_table__find();
 	if (table) {
-		pmu_metrics_table__for_each_metric(table,
-						 metricgroup__add_to_mep_groups_callback,
-						 &groups);
-	}
-	{
-		struct metricgroup_iter_data data = {
-			.fn = metricgroup__add_to_mep_groups_callback,
-			.data = &groups,
-		};
-		pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data);
+		int ret = pmu_metrics_table__for_each_metric(table, fn, data);
+
+		if (ret)
+			return ret;
 	}
 
-	for (node = rb_first_cached(&groups.entries); node; node = next) {
-		struct mep *me = container_of(node, struct mep, nd);
-
-		print_cb->print_metric(print_state,
-				me->metric_group,
-				me->metric_name,
-				me->metric_desc,
-				me->metric_long_desc,
-				me->metric_expr,
-				me->metric_threshold,
-				me->metric_unit,
-				me->pmu_name);
-		next = rb_next(node);
-		rblist__remove_node(&groups, node);
-	}
+	return pmu_for_each_sys_metric(metricgroup__sys_event_iter, &sys_data);
 }
 
 static const char *code_characters = ",-=@";
@@ -1090,29 +957,6 @@ static int add_metric(struct list_head *metric_list,
 	return ret;
 }
 
-static int metricgroup__add_metric_sys_event_iter(const struct pmu_metric *pm,
-					const struct pmu_metrics_table *table __maybe_unused,
-					void *data)
-{
-	struct metricgroup_add_iter_data *d = data;
-	int ret;
-
-	if (!match_pm_metric_or_groups(pm, d->pmu, d->metric_name))
-		return 0;
-
-	ret = add_metric(d->metric_list, pm, d->modifier, d->metric_no_group,
-			 d->metric_no_threshold, d->user_requested_cpu_list,
-			 d->system_wide, d->root_metric, d->visited, d->table);
-	if (ret)
-		goto out;
-
-	*(d->has_match) = true;
-
-out:
-	*(d->ret) = ret;
-	return ret;
-}
-
 /**
  * metric_list_cmp - list_sort comparator that sorts metrics with more events to
  *                   the front. tool events are excluded from the count.
@@ -1216,55 +1060,26 @@ static int metricgroup__add_metric(const char *pmu, const char *metric_name, con
 {
 	LIST_HEAD(list);
 	int ret;
-	bool has_match = false;
+	struct metricgroup__add_metric_data data = {
+		.list = &list,
+		.pmu = pmu,
+		.metric_name = metric_name,
+		.modifier = modifier,
+		.metric_no_group = metric_no_group,
+		.metric_no_threshold = metric_no_threshold,
+		.user_requested_cpu_list = user_requested_cpu_list,
+		.system_wide = system_wide,
+		.has_match = false,
+	};
 
-	{
-		struct metricgroup__add_metric_data data = {
-			.list = &list,
-			.pmu = pmu,
-			.metric_name = metric_name,
-			.modifier = modifier,
-			.metric_no_group = metric_no_group,
-			.metric_no_threshold = metric_no_threshold,
-			.user_requested_cpu_list = user_requested_cpu_list,
-			.system_wide = system_wide,
-			.has_match = false,
-		};
-		/*
-		 * Iterate over all metrics seeing if metric matches either the
-		 * name or group. When it does add the metric to the list.
-		 */
-		ret = pmu_metrics_table__for_each_metric(table, metricgroup__add_metric_callback,
-						       &data);
-		if (ret)
-			goto out;
-
-		has_match = data.has_match;
-	}
-	{
-		struct metricgroup_iter_data data = {
-			.fn = metricgroup__add_metric_sys_event_iter,
-			.data = (void *) &(struct metricgroup_add_iter_data) {
-				.metric_list = &list,
-				.pmu = pmu,
-				.metric_name = metric_name,
-				.modifier = modifier,
-				.metric_no_group = metric_no_group,
-				.user_requested_cpu_list = user_requested_cpu_list,
-				.system_wide = system_wide,
-				.has_match = &has_match,
-				.ret = &ret,
-				.table = table,
-			},
-		};
-
-		pmu_for_each_sys_metric(metricgroup__sys_event_iter, &data);
-	}
-	/* End of pmu events. */
-	if (!has_match)
+	/*
+	 * Iterate over all metrics seeing if metric matches either the
+	 * name or group. When it does add the metric to the list.
+	 */
+	ret = metricgroup__for_each_metric(table, metricgroup__add_metric_callback, &data);
+	if (!ret && !data.has_match)
 		ret = -EINVAL;
 
-out:
 	/*
 	 * add to metric_list so that they can be released
 	 * even if it's failed
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index a04ac1afa6cc..1c07295931c1 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -84,7 +84,8 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
 				   const char *str,
 				   struct rblist *metric_events);
 
-void metricgroup__print(const struct print_callbacks *print_cb, void *print_state);
+int metricgroup__for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
+				 void *data);
 bool metricgroup__has_metric_or_groups(const char *pmu, const char *metric_or_groups);
 unsigned int metricgroups__topdown_max_level(void);
 int arch_get_runtimeparam(const struct pmu_metric *pm);
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index 83aaf7cda635..e233bacaa641 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -381,6 +381,139 @@ void print_symbol_events(const struct print_callbacks *print_cb, void *print_sta
 	strlist__delete(evt_name_list);
 }
 
+/** struct mep - RB-tree node for building printing information. */
+struct mep {
+	/** nd - RB-tree element. */
+	struct rb_node nd;
+	/** @metric_group: Owned metric group name, separated others with ';'. */
+	char *metric_group;
+	const char *metric_name;
+	const char *metric_desc;
+	const char *metric_long_desc;
+	const char *metric_expr;
+	const char *metric_threshold;
+	const char *metric_unit;
+	const char *pmu_name;
+};
+
+static int mep_cmp(struct rb_node *rb_node, const void *entry)
+{
+	struct mep *a = container_of(rb_node, struct mep, nd);
+	struct mep *b = (struct mep *)entry;
+	int ret;
+
+	ret = strcmp(a->metric_group, b->metric_group);
+	if (ret)
+		return ret;
+
+	return strcmp(a->metric_name, b->metric_name);
+}
+
+static struct rb_node *mep_new(struct rblist *rl __maybe_unused, const void *entry)
+{
+	struct mep *me = malloc(sizeof(struct mep));
+
+	if (!me)
+		return NULL;
+
+	memcpy(me, entry, sizeof(struct mep));
+	return &me->nd;
+}
+
+static void mep_delete(struct rblist *rl __maybe_unused,
+		       struct rb_node *nd)
+{
+	struct mep *me = container_of(nd, struct mep, nd);
+
+	zfree(&me->metric_group);
+	free(me);
+}
+
+static struct mep *mep_lookup(struct rblist *groups, const char *metric_group,
+			      const char *metric_name)
+{
+	struct rb_node *nd;
+	struct mep me = {
+		.metric_group = strdup(metric_group),
+		.metric_name = metric_name,
+	};
+	nd = rblist__find(groups, &me);
+	if (nd) {
+		free(me.metric_group);
+		return container_of(nd, struct mep, nd);
+	}
+	rblist__add_node(groups, &me);
+	nd = rblist__find(groups, &me);
+	if (nd)
+		return container_of(nd, struct mep, nd);
+	return NULL;
+}
+
+static int metricgroup__add_to_mep_groups_callback(const struct pmu_metric *pm,
+					const struct pmu_metrics_table *table __maybe_unused,
+					void *vdata)
+{
+	struct rblist *groups = vdata;
+	const char *g;
+	char *omg, *mg;
+
+	mg = strdup(pm->metric_group ?: pm->metric_name);
+	if (!mg)
+		return -ENOMEM;
+	omg = mg;
+	while ((g = strsep(&mg, ";")) != NULL) {
+		struct mep *me;
+
+		g = skip_spaces(g);
+		if (strlen(g))
+			me = mep_lookup(groups, g, pm->metric_name);
+		else
+			me = mep_lookup(groups, pm->metric_name, pm->metric_name);
+
+		if (me) {
+			me->metric_desc = pm->desc;
+			me->metric_long_desc = pm->long_desc;
+			me->metric_expr = pm->metric_expr;
+			me->metric_threshold = pm->metric_threshold;
+			me->metric_unit = pm->unit;
+			me->pmu_name = pm->pmu;
+		}
+	}
+	free(omg);
+
+	return 0;
+}
+
+void metricgroup__print(const struct print_callbacks *print_cb, void *print_state)
+{
+	struct rblist groups;
+	struct rb_node *node, *next;
+	const struct pmu_metrics_table *table = pmu_metrics_table__find();
+
+	rblist__init(&groups);
+	groups.node_new = mep_new;
+	groups.node_cmp = mep_cmp;
+	groups.node_delete = mep_delete;
+
+	metricgroup__for_each_metric(table, metricgroup__add_to_mep_groups_callback, &groups);
+
+	for (node = rb_first_cached(&groups.entries); node; node = next) {
+		struct mep *me = container_of(node, struct mep, nd);
+
+		print_cb->print_metric(print_state,
+				me->metric_group,
+				me->metric_name,
+				me->metric_desc,
+				me->metric_long_desc,
+				me->metric_expr,
+				me->metric_threshold,
+				me->metric_unit,
+				me->pmu_name);
+		next = rb_next(node);
+		rblist__remove_node(&groups, node);
+	}
+}
+
 /*
  * Print the help text for the event symbols:
  */
diff --git a/tools/perf/util/print-events.h b/tools/perf/util/print-events.h
index 8f19c2bea64a..48682e2d166d 100644
--- a/tools/perf/util/print-events.h
+++ b/tools/perf/util/print-events.h
@@ -37,7 +37,9 @@ void print_sdt_events(const struct print_callbacks *print_cb, void *print_state)
 void print_symbol_events(const struct print_callbacks *print_cb, void *print_state,
 			 unsigned int type, const struct event_symbol *syms,
 			 unsigned int max);
+
 void print_tracepoint_events(const struct print_callbacks *print_cb, void *print_state);
+void metricgroup__print(const struct print_callbacks *print_cb, void *print_state);
 bool is_event_supported(u8 type, u64 config);
 
 #endif /* __PERF_PRINT_EVENTS_H */

From faebee18d720d9e209946ece3e468c06cf13f5ec Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:19 -0700
Subject: [PATCH 114/179] perf stat: Move metric list from config to evlist

The rblist of metric_event that then have a list of associated
metric_expr is moved out of the stat_config and into the evlist. This
is done as part of refactoring things for python, having the state
split in two places complicates that implementation. The evlist is
doing the harder work of enabling and disabling events, the metrics
are needed to compute a value and it doesn't seem unreasonable to hang
them from the evlist.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-script.c      |  3 +--
 tools/perf/builtin-stat.c        | 25 ++++++++++++-------------
 tools/perf/tests/expand-cgroup.c | 24 +++++++-----------------
 tools/perf/tests/parse-metric.c  | 16 +++++-----------
 tools/perf/tests/pmu-events.c    |  8 ++------
 tools/perf/util/cgroup.c         | 23 ++++++++---------------
 tools/perf/util/cgroup.h         |  3 +--
 tools/perf/util/evlist.c         |  3 +++
 tools/perf/util/evlist.h         |  6 ++++++
 tools/perf/util/metricgroup.c    | 20 ++++++++------------
 tools/perf/util/metricgroup.h    |  7 +++----
 tools/perf/util/python.c         |  4 ++++
 tools/perf/util/stat-display.c   | 16 ++++++----------
 tools/perf/util/stat-shadow.c    | 13 ++++++-------
 tools/perf/util/stat.h           | 12 +++---------
 15 files changed, 75 insertions(+), 108 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 4001e621b6cb..271f22962e32 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2136,8 +2136,7 @@ static void perf_sample__fprint_metric(struct perf_script *script,
 			perf_stat__print_shadow_stats(&stat_config, ev2,
 						      evsel_script(ev2)->val,
 						      sample->cpu,
-						      &ctx,
-						      NULL);
+						      &ctx);
 		}
 		evsel_script(leader)->gnum = 0;
 	}
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 50fc53adb7e4..77e2248fa7fc 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1863,8 +1863,7 @@ static int add_default_events(void)
 						stat_config.metric_no_threshold,
 						stat_config.user_requested_cpu_list,
 						stat_config.system_wide,
-						stat_config.hardware_aware_grouping,
-						&stat_config.metric_events);
+						stat_config.hardware_aware_grouping);
 		goto out;
 	}
 
@@ -1901,8 +1900,7 @@ static int add_default_events(void)
 						stat_config.metric_no_threshold,
 						stat_config.user_requested_cpu_list,
 						stat_config.system_wide,
-						stat_config.hardware_aware_grouping,
-						&stat_config.metric_events);
+						stat_config.hardware_aware_grouping);
 		goto out;
 	}
 
@@ -1939,8 +1937,7 @@ static int add_default_events(void)
 						/*metric_no_threshold=*/true,
 						stat_config.user_requested_cpu_list,
 						stat_config.system_wide,
-						stat_config.hardware_aware_grouping,
-						&stat_config.metric_events) < 0) {
+						stat_config.hardware_aware_grouping) < 0) {
 			ret = -1;
 			goto out;
 		}
@@ -1989,8 +1986,7 @@ static int add_default_events(void)
 							/*metric_no_threshold=*/true,
 							stat_config.user_requested_cpu_list,
 							stat_config.system_wide,
-							stat_config.hardware_aware_grouping,
-							&stat_config.metric_events) < 0) {
+							stat_config.hardware_aware_grouping) < 0) {
 				ret = -1;
 				goto out;
 			}
@@ -1999,6 +1995,9 @@ static int add_default_events(void)
 				evsel->default_metricgroup = true;
 
 			evlist__splice_list_tail(evlist, &metric_evlist->core.entries);
+			metricgroup__copy_metric_events(evlist, /*cgrp=*/NULL,
+							&evlist->metric_events,
+							&metric_evlist->metric_events);
 			evlist__delete(metric_evlist);
 		}
 	}
@@ -2053,6 +2052,9 @@ static int add_default_events(void)
 	}
 	parse_events_error__exit(&err);
 	evlist__splice_list_tail(evsel_list, &evlist->core.entries);
+	metricgroup__copy_metric_events(evsel_list, /*cgrp=*/NULL,
+					&evsel_list->metric_events,
+					&evlist->metric_events);
 	evlist__delete(evlist);
 	return ret;
 }
@@ -2739,8 +2741,7 @@ int cmd_stat(int argc, const char **argv)
 						stat_config.metric_no_threshold,
 						stat_config.user_requested_cpu_list,
 						stat_config.system_wide,
-						stat_config.hardware_aware_grouping,
-						&stat_config.metric_events);
+						stat_config.hardware_aware_grouping);
 
 		zfree(&metrics);
 		if (ret) {
@@ -2760,8 +2761,7 @@ int cmd_stat(int argc, const char **argv)
 			goto out;
 		}
 
-		if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list,
-					  &stat_config.metric_events, true) < 0) {
+		if (evlist__expand_cgroup(evsel_list, stat_config.cgroup_list, true) < 0) {
 			parse_options_usage(stat_usage, stat_options,
 					    "for-each-cgroup", 0);
 			goto out;
@@ -2936,7 +2936,6 @@ int cmd_stat(int argc, const char **argv)
 
 	evlist__delete(evsel_list);
 
-	metricgroup__rblist_exit(&stat_config.metric_events);
 	evlist__close_control(stat_config.ctl_fd, stat_config.ctl_fd_ack, &stat_config.ctl_fd_close);
 
 	return status;
diff --git a/tools/perf/tests/expand-cgroup.c b/tools/perf/tests/expand-cgroup.c
index 31966ff856f8..c7b32a220ca1 100644
--- a/tools/perf/tests/expand-cgroup.c
+++ b/tools/perf/tests/expand-cgroup.c
@@ -13,8 +13,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-static int test_expand_events(struct evlist *evlist,
-			      struct rblist *metric_events)
+static int test_expand_events(struct evlist *evlist)
 {
 	int i, ret = TEST_FAIL;
 	int nr_events;
@@ -47,7 +46,7 @@ static int test_expand_events(struct evlist *evlist,
 	was_group_event = evsel__is_group_event(evlist__first(evlist));
 	nr_members = evlist__first(evlist)->core.nr_members;
 
-	ret = evlist__expand_cgroup(evlist, cgrp_str, metric_events, false);
+	ret = evlist__expand_cgroup(evlist, cgrp_str, false);
 	if (ret < 0) {
 		pr_debug("failed to expand events for cgroups\n");
 		goto out;
@@ -100,13 +99,11 @@ out:	for (i = 0; i < nr_events; i++)
 static int expand_default_events(void)
 {
 	int ret;
-	struct rblist metric_events;
 	struct evlist *evlist = evlist__new_default();
 
 	TEST_ASSERT_VAL("failed to get evlist", evlist);
 
-	rblist__init(&metric_events);
-	ret = test_expand_events(evlist, &metric_events);
+	ret = test_expand_events(evlist);
 	evlist__delete(evlist);
 	return ret;
 }
@@ -115,7 +112,6 @@ static int expand_group_events(void)
 {
 	int ret;
 	struct evlist *evlist;
-	struct rblist metric_events;
 	struct parse_events_error err;
 	const char event_str[] = "{cycles,instructions}";
 
@@ -132,8 +128,7 @@ static int expand_group_events(void)
 		goto out;
 	}
 
-	rblist__init(&metric_events);
-	ret = test_expand_events(evlist, &metric_events);
+	ret = test_expand_events(evlist);
 out:
 	parse_events_error__exit(&err);
 	evlist__delete(evlist);
@@ -144,7 +139,6 @@ static int expand_libpfm_events(void)
 {
 	int ret;
 	struct evlist *evlist;
-	struct rblist metric_events;
 	const char event_str[] = "CYCLES";
 	struct option opt = {
 		.value = &evlist,
@@ -166,8 +160,7 @@ static int expand_libpfm_events(void)
 		goto out;
 	}
 
-	rblist__init(&metric_events);
-	ret = test_expand_events(evlist, &metric_events);
+	ret = test_expand_events(evlist);
 out:
 	evlist__delete(evlist);
 	return ret;
@@ -177,25 +170,22 @@ static int expand_metric_events(void)
 {
 	int ret;
 	struct evlist *evlist;
-	struct rblist metric_events;
 	const char metric_str[] = "CPI";
 	const struct pmu_metrics_table *pme_test;
 
 	evlist = evlist__new();
 	TEST_ASSERT_VAL("failed to get evlist", evlist);
 
-	rblist__init(&metric_events);
 	pme_test = find_core_metrics_table("testarch", "testcpu");
-	ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str, &metric_events);
+	ret = metricgroup__parse_groups_test(evlist, pme_test, metric_str);
 	if (ret < 0) {
 		pr_debug("failed to parse '%s' metric\n", metric_str);
 		goto out;
 	}
 
-	ret = test_expand_events(evlist, &metric_events);
+	ret = test_expand_events(evlist);
 
 out:
-	metricgroup__rblist_exit(&metric_events);
 	evlist__delete(evlist);
 	return ret;
 }
diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
index 2c28fb50dc24..66a5275917e2 100644
--- a/tools/perf/tests/parse-metric.c
+++ b/tools/perf/tests/parse-metric.c
@@ -45,15 +45,14 @@ static void load_runtime_stat(struct evlist *evlist, struct value *vals)
 	}
 }
 
-static double compute_single(struct rblist *metric_events, struct evlist *evlist,
-			     const char *name)
+static double compute_single(struct evlist *evlist, const char *name)
 {
 	struct metric_expr *mexp;
 	struct metric_event *me;
 	struct evsel *evsel;
 
 	evlist__for_each_entry(evlist, evsel) {
-		me = metricgroup__lookup(metric_events, evsel, false);
+		me = metricgroup__lookup(&evlist->metric_events, evsel, false);
 		if (me != NULL) {
 			list_for_each_entry (mexp, &me->head, nd) {
 				if (strcmp(mexp->metric_name, name))
@@ -69,9 +68,6 @@ static int __compute_metric(const char *name, struct value *vals,
 			    const char *name1, double *ratio1,
 			    const char *name2, double *ratio2)
 {
-	struct rblist metric_events = {
-		.nr_entries = 0,
-	};
 	const struct pmu_metrics_table *pme_test;
 	struct perf_cpu_map *cpus;
 	struct evlist *evlist;
@@ -95,8 +91,7 @@ static int __compute_metric(const char *name, struct value *vals,
 
 	/* Parse the metric into metric_events list. */
 	pme_test = find_core_metrics_table("testarch", "testcpu");
-	err = metricgroup__parse_groups_test(evlist, pme_test, name,
-					     &metric_events);
+	err = metricgroup__parse_groups_test(evlist, pme_test, name);
 	if (err)
 		goto out;
 
@@ -109,13 +104,12 @@ static int __compute_metric(const char *name, struct value *vals,
 
 	/* And execute the metric */
 	if (name1 && ratio1)
-		*ratio1 = compute_single(&metric_events, evlist, name1);
+		*ratio1 = compute_single(evlist, name1);
 	if (name2 && ratio2)
-		*ratio2 = compute_single(&metric_events, evlist, name2);
+		*ratio2 = compute_single(evlist, name2);
 
 out:
 	/* ... cleanup. */
-	metricgroup__rblist_exit(&metric_events);
 	evlist__free_stats(evlist);
 	perf_cpu_map__put(cpus);
 	evlist__delete(evlist);
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 815b40097428..8bbe0516ecc0 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -868,9 +868,6 @@ static int test__parsing_callback(const struct pmu_metric *pm,
 	struct evlist *evlist;
 	struct perf_cpu_map *cpus;
 	struct evsel *evsel;
-	struct rblist metric_events = {
-		.nr_entries = 0,
-	};
 	int err = 0;
 
 	if (!pm->metric_expr)
@@ -895,7 +892,7 @@ static int test__parsing_callback(const struct pmu_metric *pm,
 
 	perf_evlist__set_maps(&evlist->core, cpus, NULL);
 
-	err = metricgroup__parse_groups_test(evlist, table, pm->metric_name, &metric_events);
+	err = metricgroup__parse_groups_test(evlist, table, pm->metric_name);
 	if (err) {
 		if (!strcmp(pm->metric_name, "M1") || !strcmp(pm->metric_name, "M2") ||
 		    !strcmp(pm->metric_name, "M3")) {
@@ -922,7 +919,7 @@ static int test__parsing_callback(const struct pmu_metric *pm,
 		k++;
 	}
 	evlist__for_each_entry(evlist, evsel) {
-		struct metric_event *me = metricgroup__lookup(&metric_events, evsel, false);
+		struct metric_event *me = metricgroup__lookup(&evlist->metric_events, evsel, false);
 
 		if (me != NULL) {
 			struct metric_expr *mexp;
@@ -944,7 +941,6 @@ static int test__parsing_callback(const struct pmu_metric *pm,
 		pr_debug("Broken metric %s\n", pm->metric_name);
 
 	/* ... cleanup. */
-	metricgroup__rblist_exit(&metric_events);
 	evlist__free_stats(evlist);
 	perf_cpu_map__put(cpus);
 	evlist__delete(evlist);
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index fbcc0626f9ce..25e2769b5e74 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -413,8 +413,7 @@ static bool has_pattern_string(const char *str)
 	return !!strpbrk(str, "{}[]()|*+?^$");
 }
 
-int evlist__expand_cgroup(struct evlist *evlist, const char *str,
-			  struct rblist *metric_events, bool open_cgroup)
+int evlist__expand_cgroup(struct evlist *evlist, const char *str, bool open_cgroup)
 {
 	struct evlist *orig_list, *tmp_list;
 	struct evsel *pos, *evsel, *leader;
@@ -440,12 +439,8 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str,
 	evlist__splice_list_tail(orig_list, &evlist->core.entries);
 	evlist->core.nr_entries = 0;
 
-	if (metric_events) {
-		orig_metric_events = *metric_events;
-		rblist__init(metric_events);
-	} else {
-		rblist__init(&orig_metric_events);
-	}
+	orig_metric_events = evlist->metric_events;
+	metricgroup__rblist_init(&evlist->metric_events);
 
 	if (has_pattern_string(str))
 		prefix_len = match_cgroups(str);
@@ -490,12 +485,10 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str,
 		cgroup__put(cgrp);
 		nr_cgroups++;
 
-		if (metric_events) {
-			if (metricgroup__copy_metric_events(tmp_list, cgrp,
-							    metric_events,
-							    &orig_metric_events) < 0)
-				goto out_err;
-		}
+		if (metricgroup__copy_metric_events(tmp_list, cgrp,
+						    &evlist->metric_events,
+						    &orig_metric_events) < 0)
+			goto out_err;
 
 		evlist__splice_list_tail(evlist, &tmp_list->core.entries);
 		tmp_list->core.nr_entries = 0;
@@ -512,7 +505,7 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str,
 out_err:
 	evlist__delete(orig_list);
 	evlist__delete(tmp_list);
-	rblist__exit(&orig_metric_events);
+	metricgroup__rblist_exit(&orig_metric_events);
 	release_cgroup_list();
 
 	return ret;
diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h
index de8882d6e8d3..7b1bda22878c 100644
--- a/tools/perf/util/cgroup.h
+++ b/tools/perf/util/cgroup.h
@@ -28,8 +28,7 @@ struct rblist;
 
 struct cgroup *cgroup__new(const char *name, bool do_open);
 struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name);
-int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups,
-			  struct rblist *metric_events, bool open_cgroup);
+int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups, bool open_cgroup);
 
 void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup);
 
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 5664ebf6bbc6..995ad5f654d0 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -35,6 +35,7 @@
 #include "util/util.h"
 #include "util/env.h"
 #include "util/intel-tpebs.h"
+#include "util/metricgroup.h"
 #include "util/strbuf.h"
 #include <signal.h>
 #include <unistd.h>
@@ -83,6 +84,7 @@ void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
 	evlist->ctl_fd.ack = -1;
 	evlist->ctl_fd.pos = -1;
 	evlist->nr_br_cntr = -1;
+	metricgroup__rblist_init(&evlist->metric_events);
 }
 
 struct evlist *evlist__new(void)
@@ -173,6 +175,7 @@ static void evlist__purge(struct evlist *evlist)
 
 void evlist__exit(struct evlist *evlist)
 {
+	metricgroup__rblist_exit(&evlist->metric_events);
 	event_enable_timer__exit(&evlist->eet);
 	zfree(&evlist->mmap);
 	zfree(&evlist->overwrite_mmap);
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 85859708393e..fac1a01ba13f 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -12,6 +12,7 @@
 #include <perf/evlist.h>
 #include "events_stats.h"
 #include "evsel.h"
+#include "rblist.h"
 #include <pthread.h>
 #include <signal.h>
 #include <unistd.h>
@@ -86,6 +87,11 @@ struct evlist {
 		int	pos;	/* index at evlist core object to check signals */
 	} ctl_fd;
 	struct event_enable_timer *eet;
+	/**
+	 * @metric_events: A list of struct metric_event which each have a list
+	 * of struct metric_expr.
+	 */
+	struct rblist	metric_events;
 };
 
 struct evsel_str_handler {
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index ddd5c362d183..3cc6c47402bd 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -103,7 +103,7 @@ static void metric_event_delete(struct rblist *rblist __maybe_unused,
 	free(me);
 }
 
-static void metricgroup__rblist_init(struct rblist *metric_events)
+void metricgroup__rblist_init(struct rblist *metric_events)
 {
 	rblist__init(metric_events);
 	metric_events->node_cmp = metric_event_cmp;
@@ -1323,7 +1323,6 @@ static int parse_groups(struct evlist *perf_evlist,
 			const char *user_requested_cpu_list,
 			bool system_wide,
 			bool fake_pmu,
-			struct rblist *metric_events_list,
 			const struct pmu_metrics_table *table)
 {
 	struct evlist *combined_evlist = NULL;
@@ -1333,8 +1332,6 @@ static int parse_groups(struct evlist *perf_evlist,
 	bool is_default = !strcmp(str, "Default");
 	int ret;
 
-	if (metric_events_list->nr_entries == 0)
-		metricgroup__rblist_init(metric_events_list);
 	ret = metricgroup__add_metric_list(pmu, str, metric_no_group, metric_no_threshold,
 					   user_requested_cpu_list,
 					   system_wide, &metric_list, table);
@@ -1425,7 +1422,8 @@ static int parse_groups(struct evlist *perf_evlist,
 			goto out;
 		}
 
-		me = metricgroup__lookup(metric_events_list, metric_events[0], true);
+		me = metricgroup__lookup(&perf_evlist->metric_events, metric_events[0],
+					 /*create=*/true);
 
 		expr = malloc(sizeof(struct metric_expr));
 		if (!expr) {
@@ -1485,8 +1483,7 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
 			      bool metric_no_threshold,
 			      const char *user_requested_cpu_list,
 			      bool system_wide,
-			      bool hardware_aware_grouping,
-			      struct rblist *metric_events)
+			      bool hardware_aware_grouping)
 {
 	const struct pmu_metrics_table *table = pmu_metrics_table__find();
 
@@ -1497,13 +1494,12 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
 
 	return parse_groups(perf_evlist, pmu, str, metric_no_group, metric_no_merge,
 			    metric_no_threshold, user_requested_cpu_list, system_wide,
-			    /*fake_pmu=*/false, metric_events, table);
+			    /*fake_pmu=*/false, table);
 }
 
 int metricgroup__parse_groups_test(struct evlist *evlist,
 				   const struct pmu_metrics_table *table,
-				   const char *str,
-				   struct rblist *metric_events)
+				   const char *str)
 {
 	return parse_groups(evlist, "all", str,
 			    /*metric_no_group=*/false,
@@ -1511,7 +1507,7 @@ int metricgroup__parse_groups_test(struct evlist *evlist,
 			    /*metric_no_threshold=*/false,
 			    /*user_requested_cpu_list=*/NULL,
 			    /*system_wide=*/false,
-			    /*fake_pmu=*/true, metric_events, table);
+			    /*fake_pmu=*/true, table);
 }
 
 struct metricgroup__has_metric_data {
@@ -1596,7 +1592,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
 		evsel = evlist__find_evsel(evlist, old_me->evsel->core.idx);
 		if (!evsel)
 			return -EINVAL;
-		new_me = metricgroup__lookup(new_metric_events, evsel, true);
+		new_me = metricgroup__lookup(new_metric_events, evsel, /*create=*/true);
 		if (!new_me)
 			return -ENOMEM;
 
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
index 1c07295931c1..324880b2ed8f 100644
--- a/tools/perf/util/metricgroup.h
+++ b/tools/perf/util/metricgroup.h
@@ -77,18 +77,17 @@ int metricgroup__parse_groups(struct evlist *perf_evlist,
 			      bool metric_no_threshold,
 			      const char *user_requested_cpu_list,
 			      bool system_wide,
-			      bool hardware_aware_grouping,
-			      struct rblist *metric_events);
+			      bool hardware_aware_grouping);
 int metricgroup__parse_groups_test(struct evlist *evlist,
 				   const struct pmu_metrics_table *table,
-				   const char *str,
-				   struct rblist *metric_events);
+				   const char *str);
 
 int metricgroup__for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
 				 void *data);
 bool metricgroup__has_metric_or_groups(const char *pmu, const char *metric_or_groups);
 unsigned int metricgroups__topdown_max_level(void);
 int arch_get_runtimeparam(const struct pmu_metric *pm);
+void metricgroup__rblist_init(struct rblist *metric_events);
 void metricgroup__rblist_exit(struct rblist *metric_events);
 
 int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 82666bcd2eda..b5ee9f7a4662 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -18,6 +18,7 @@
 #include "strbuf.h"
 #include "thread_map.h"
 #include "trace-event.h"
+#include "metricgroup.h"
 #include "mmap.h"
 #include "util/sample.h"
 #include <internal/lib.h>
@@ -1544,6 +1545,9 @@ static PyObject *pyrf_evlist__from_evlist(struct evlist *evlist)
 
 		evlist__add(&pevlist->evlist, &pevsel->evsel);
 	}
+	metricgroup__copy_metric_events(&pevlist->evlist, /*cgrp=*/NULL,
+					&pevlist->evlist.metric_events,
+					&evlist->metric_events);
 	return (PyObject *)pevlist;
 }
 
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 9cb5245a92aa..a67b991f4e81 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -899,12 +899,11 @@ static void printout(struct perf_stat_config *config, struct outstate *os,
 				print_noise(config, os, counter, noise, /*before_metric=*/true);
 				print_running(config, os, run, ena, /*before_metric=*/true);
 				from = perf_stat__print_shadow_stats_metricgroup(config, counter, aggr_idx,
-										 &num, from, &out,
-										 &config->metric_events);
+										 &num, from, &out);
 			} while (from != NULL);
-		} else
-			perf_stat__print_shadow_stats(config, counter, uval, aggr_idx,
-						      &out, &config->metric_events);
+		} else {
+			perf_stat__print_shadow_stats(config, counter, uval, aggr_idx, &out);
+		}
 	} else {
 		pm(config, os, METRIC_THRESHOLD_UNKNOWN, /*format=*/NULL, /*unit=*/NULL, /*val=*/0);
 	}
@@ -1016,7 +1015,7 @@ static void print_counter_aggrdata(struct perf_stat_config *config,
 	ena = aggr->counts.ena;
 	run = aggr->counts.run;
 
-	if (perf_stat__skip_metric_event(counter, &config->metric_events, ena, run))
+	if (perf_stat__skip_metric_event(counter, ena, run))
 		return;
 
 	if (val == 0 && should_skip_zero_counter(config, counter, &id))
@@ -1275,10 +1274,7 @@ static void print_metric_headers(struct perf_stat_config *config,
 
 		os.evsel = counter;
 
-		perf_stat__print_shadow_stats(config, counter, 0,
-					      0,
-					      &out,
-					      &config->metric_events);
+		perf_stat__print_shadow_stats(config, counter, 0, 0, &out);
 	}
 
 	if (!config->json_output)
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index d83bda5824d2..2b4950f56fae 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -15,6 +15,7 @@
 #include <linux/zalloc.h>
 #include "iostat.h"
 #include "util/hashmap.h"
+#include "rblist.h"
 #include "tool_pmu.h"
 
 struct stats walltime_nsecs_stats;
@@ -635,14 +636,14 @@ void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
 						int aggr_idx,
 						int *num,
 						void *from,
-						struct perf_stat_output_ctx *out,
-						struct rblist *metric_events)
+						struct perf_stat_output_ctx *out)
 {
 	struct metric_event *me;
 	struct metric_expr *mexp = from;
 	void *ctxp = out->ctx;
 	bool header_printed = false;
 	const char *name = NULL;
+	struct rblist *metric_events = &evsel->evlist->metric_events;
 
 	me = metricgroup__lookup(metric_events, evsel, false);
 	if (me == NULL)
@@ -683,8 +684,7 @@ void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 				   struct evsel *evsel,
 				   double avg, int aggr_idx,
-				   struct perf_stat_output_ctx *out,
-				   struct rblist *metric_events)
+				   struct perf_stat_output_ctx *out)
 {
 	typedef void (*stat_print_function_t)(struct perf_stat_config *config,
 					const struct evsel *evsel,
@@ -735,7 +735,7 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 	}
 
 	perf_stat__print_shadow_stats_metricgroup(config, evsel, aggr_idx,
-						  &num, NULL, out, metric_events);
+						  &num, NULL, out);
 
 	if (num == 0) {
 		print_metric(config, ctxp, METRIC_THRESHOLD_UNKNOWN,
@@ -748,7 +748,6 @@ void perf_stat__print_shadow_stats(struct perf_stat_config *config,
  *				  if it's not running or not the metric event.
  */
 bool perf_stat__skip_metric_event(struct evsel *evsel,
-				  struct rblist *metric_events,
 				  u64 ena, u64 run)
 {
 	if (!evsel->default_metricgroup)
@@ -757,5 +756,5 @@ bool perf_stat__skip_metric_event(struct evsel *evsel,
 	if (!ena || !run)
 		return true;
 
-	return !metricgroup__lookup(metric_events, evsel, false);
+	return !metricgroup__lookup(&evsel->evlist->metric_events, evsel, false);
 }
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 1bcd7634bf47..4b0f14ae4e5f 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -7,7 +7,6 @@
 #include <sys/types.h>
 #include <sys/resource.h>
 #include "cpumap.h"
-#include "rblist.h"
 #include "counts.h"
 
 struct perf_cpu_map;
@@ -108,7 +107,6 @@ struct perf_stat_config {
 	aggr_get_id_t		 aggr_get_id;
 	struct cpu_aggr_map	*cpus_aggr_map;
 	u64			*walltime_run;
-	struct rblist		 metric_events;
 	int			 ctl_fd;
 	int			 ctl_fd_ack;
 	bool			 ctl_fd_close;
@@ -187,18 +185,14 @@ struct perf_stat_output_ctx {
 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
 				   struct evsel *evsel,
 				   double avg, int aggr_idx,
-				   struct perf_stat_output_ctx *out,
-				   struct rblist *metric_events);
-bool perf_stat__skip_metric_event(struct evsel *evsel,
-				  struct rblist *metric_events,
-				  u64 ena, u64 run);
+				   struct perf_stat_output_ctx *out);
+bool perf_stat__skip_metric_event(struct evsel *evsel, u64 ena, u64 run);
 void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
 						struct evsel *evsel,
 						int aggr_idx,
 						int *num,
 						void *from,
-						struct perf_stat_output_ctx *out,
-						struct rblist *metric_events);
+						struct perf_stat_output_ctx *out);
 
 int evlist__alloc_stats(struct perf_stat_config *config,
 			struct evlist *evlist, bool alloc_raw);

From 3787cdaf387cdc14a9a000624742b4ee0a509244 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:20 -0700
Subject: [PATCH 115/179] perf expr: Accumulate rather than replace in the
 context counts

Metrics will fill in the context to have mappings from an event to a
count. When counts are added they replace existing mappings which
generally shouldn't exist with aggregation. Switch to accumulating to
better support cases where perf stat's aggregation isn't used and we
may see a counter more than once.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/expr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index 6413537442aa..ca70a14c7cdf 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -166,8 +166,12 @@ int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id,
 	data_ptr->kind = EXPR_ID_DATA__VALUE;
 
 	ret = hashmap__set(ctx->ids, id, data_ptr, &old_key, &old_data);
-	if (ret)
+	if (ret) {
 		free(data_ptr);
+	} else if (old_data) {
+		data_ptr->val.val += old_data->val.val;
+		data_ptr->val.source_count += old_data->val.source_count;
+	}
 	free(old_key);
 	free(old_data);
 	return ret;

From 5c255832deaf34d74c0adf2200eb50a8bba0fc00 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:21 -0700
Subject: [PATCH 116/179] perf jevents: If the long_desc and desc are identical
 then drop the long_desc

If the short and long descriptions are the same then save space and
don't store both of them. When storing the desc in the perf_pmu_alias,
don't duplicate the desc into the long_desc.

By avoiding storing the duplicate the size of the events string in the
binary on x86 is reduced by 29,840 bytes.

Fix tests that expect a duplicated description.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/empty-pmu-events.c | 128 +++++++++++------------
 tools/perf/pmu-events/jevents.py         |   3 +
 tools/perf/tests/pmu-events.c            |  22 ----
 tools/perf/util/pmu.c                    |   3 +-
 4 files changed, 68 insertions(+), 88 deletions(-)

diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index d4017007a991..a4569a74db07 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -40,38 +40,38 @@ static const char *const big_c_string =
 /* offset=1475 */ "dispatch_blocked.any\000other\000Memory cluster signals to block micro-op dispatch for any reason\000event=9,period=200000,umask=0x20\000\00000\000\000\000\000\000"
 /* offset=1608 */ "eist_trans\000other\000Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions\000event=0x3a,period=200000\000\00000\000\000\000\000\000"
 /* offset=1726 */ "hisi_sccl,ddrc\000"
-/* offset=1741 */ "uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000DDRC write commands\000"
-/* offset=1830 */ "uncore_cbox\000"
-/* offset=1842 */ "unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000"
-/* offset=2076 */ "event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000UNC_CBO_HYPHEN\000"
-/* offset=2144 */ "event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000UNC_CBO_TWO_HYPH\000"
-/* offset=2218 */ "hisi_sccl,l3c\000"
-/* offset=2232 */ "uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000Total read hits\000"
-/* offset=2315 */ "uncore_imc_free_running\000"
-/* offset=2339 */ "uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000Total cache misses\000"
-/* offset=2437 */ "uncore_imc\000"
-/* offset=2448 */ "uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000Total cache hits\000"
-/* offset=2529 */ "uncore_sys_ddr_pmu\000"
-/* offset=2548 */ "sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000"
-/* offset=2624 */ "uncore_sys_ccn_pmu\000"
-/* offset=2643 */ "sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000"
-/* offset=2720 */ "uncore_sys_cmn_pmu\000"
-/* offset=2739 */ "sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000"
-/* offset=2882 */ "CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000"
-/* offset=2904 */ "IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000"
-/* offset=2967 */ "Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000"
-/* offset=3133 */ "dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
-/* offset=3197 */ "icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
-/* offset=3264 */ "cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000"
-/* offset=3335 */ "DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000"
-/* offset=3429 */ "DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000"
-/* offset=3563 */ "DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000"
-/* offset=3627 */ "DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000"
-/* offset=3695 */ "DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000"
-/* offset=3765 */ "M1\000\000ipc + M2\000\000\000\000\000\000\000\00000"
-/* offset=3787 */ "M2\000\000ipc + M1\000\000\000\000\000\000\000\00000"
-/* offset=3809 */ "M3\000\0001 / M3\000\000\000\000\000\000\000\00000"
-/* offset=3829 */ "L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000"
+/* offset=1741 */ "uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000"
+/* offset=1811 */ "uncore_cbox\000"
+/* offset=1823 */ "unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000"
+/* offset=1977 */ "event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000"
+/* offset=2031 */ "event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000"
+/* offset=2089 */ "hisi_sccl,l3c\000"
+/* offset=2103 */ "uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000"
+/* offset=2171 */ "uncore_imc_free_running\000"
+/* offset=2195 */ "uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000"
+/* offset=2275 */ "uncore_imc\000"
+/* offset=2286 */ "uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000"
+/* offset=2351 */ "uncore_sys_ddr_pmu\000"
+/* offset=2370 */ "sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000"
+/* offset=2446 */ "uncore_sys_ccn_pmu\000"
+/* offset=2465 */ "sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000"
+/* offset=2542 */ "uncore_sys_cmn_pmu\000"
+/* offset=2561 */ "sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000"
+/* offset=2704 */ "CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000"
+/* offset=2726 */ "IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000"
+/* offset=2789 */ "Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000"
+/* offset=2955 */ "dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
+/* offset=3019 */ "icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
+/* offset=3086 */ "cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000"
+/* offset=3157 */ "DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000"
+/* offset=3251 */ "DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000"
+/* offset=3385 */ "DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000"
+/* offset=3449 */ "DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000"
+/* offset=3517 */ "DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000"
+/* offset=3587 */ "M1\000\000ipc + M2\000\000\000\000\000\000\000\00000"
+/* offset=3609 */ "M2\000\000ipc + M1\000\000\000\000\000\000\000\00000"
+/* offset=3631 */ "M3\000\0001 / M3\000\000\000\000\000\000\000\00000"
+/* offset=3651 */ "L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000"
 ;
 
 static const struct compact_pmu_event pmu_events__common_tool[] = {
@@ -107,21 +107,21 @@ static const struct compact_pmu_event pmu_events__test_soc_cpu_default_core[] =
 { 1373 }, /* segment_reg_loads.any\000other\000Number of segment register loads\000event=6,period=200000,umask=0x80\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_hisi_sccl_ddrc[] = {
-{ 1741 }, /* uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000DDRC write commands\000 */
+{ 1741 }, /* uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_hisi_sccl_l3c[] = {
-{ 2232 }, /* uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000Total read hits\000 */
+{ 2103 }, /* uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_cbox[] = {
-{ 2076 }, /* event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000UNC_CBO_HYPHEN\000 */
-{ 2144 }, /* event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000UNC_CBO_TWO_HYPH\000 */
-{ 1842 }, /* unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000 */
+{ 1977 }, /* event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000 */
+{ 2031 }, /* event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000 */
+{ 1823 }, /* unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_imc[] = {
-{ 2448 }, /* uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000Total cache hits\000 */
+{ 2286 }, /* uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_imc_free_running[] = {
-{ 2339 }, /* uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000Total cache misses\000 */
+{ 2195 }, /* uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000 */
 
 };
 
@@ -139,41 +139,41 @@ const struct pmu_table_entry pmu_events__test_soc_cpu[] = {
 {
      .entries = pmu_events__test_soc_cpu_hisi_sccl_l3c,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_hisi_sccl_l3c),
-     .pmu_name = { 2218 /* hisi_sccl,l3c\000 */ },
+     .pmu_name = { 2089 /* hisi_sccl,l3c\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_cbox,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_cbox),
-     .pmu_name = { 1830 /* uncore_cbox\000 */ },
+     .pmu_name = { 1811 /* uncore_cbox\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_imc,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_imc),
-     .pmu_name = { 2437 /* uncore_imc\000 */ },
+     .pmu_name = { 2275 /* uncore_imc\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_imc_free_running,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_imc_free_running),
-     .pmu_name = { 2315 /* uncore_imc_free_running\000 */ },
+     .pmu_name = { 2171 /* uncore_imc_free_running\000 */ },
 },
 };
 
 static const struct compact_pmu_event pmu_metrics__test_soc_cpu_default_core[] = {
-{ 2882 }, /* CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000 */
-{ 3563 }, /* DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000 */
-{ 3335 }, /* DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000 */
-{ 3429 }, /* DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000 */
-{ 3627 }, /* DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
-{ 3695 }, /* DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
-{ 2967 }, /* Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000 */
-{ 2904 }, /* IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000 */
-{ 3829 }, /* L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000 */
-{ 3765 }, /* M1\000\000ipc + M2\000\000\000\000\000\000\000\00000 */
-{ 3787 }, /* M2\000\000ipc + M1\000\000\000\000\000\000\000\00000 */
-{ 3809 }, /* M3\000\0001 / M3\000\000\000\000\000\000\000\00000 */
-{ 3264 }, /* cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000 */
-{ 3133 }, /* dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
-{ 3197 }, /* icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
+{ 2704 }, /* CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000 */
+{ 3385 }, /* DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000 */
+{ 3157 }, /* DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000 */
+{ 3251 }, /* DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000 */
+{ 3449 }, /* DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
+{ 3517 }, /* DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
+{ 2789 }, /* Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000 */
+{ 2726 }, /* IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000 */
+{ 3651 }, /* L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000 */
+{ 3587 }, /* M1\000\000ipc + M2\000\000\000\000\000\000\000\00000 */
+{ 3609 }, /* M2\000\000ipc + M1\000\000\000\000\000\000\000\00000 */
+{ 3631 }, /* M3\000\0001 / M3\000\000\000\000\000\000\000\00000 */
+{ 3086 }, /* cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000 */
+{ 2955 }, /* dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
+{ 3019 }, /* icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
 
 };
 
@@ -186,13 +186,13 @@ const struct pmu_table_entry pmu_metrics__test_soc_cpu[] = {
 };
 
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_ccn_pmu[] = {
-{ 2643 }, /* sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000 */
+{ 2465 }, /* sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_cmn_pmu[] = {
-{ 2739 }, /* sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000 */
+{ 2561 }, /* sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_ddr_pmu[] = {
-{ 2548 }, /* sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000 */
+{ 2370 }, /* sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000 */
 
 };
 
@@ -200,17 +200,17 @@ const struct pmu_table_entry pmu_events__test_soc_sys[] = {
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_ccn_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_ccn_pmu),
-     .pmu_name = { 2624 /* uncore_sys_ccn_pmu\000 */ },
+     .pmu_name = { 2446 /* uncore_sys_ccn_pmu\000 */ },
 },
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_cmn_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_cmn_pmu),
-     .pmu_name = { 2720 /* uncore_sys_cmn_pmu\000 */ },
+     .pmu_name = { 2542 /* uncore_sys_cmn_pmu\000 */ },
 },
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_ddr_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_ddr_pmu),
-     .pmu_name = { 2529 /* uncore_sys_ddr_pmu\000 */ },
+     .pmu_name = { 2351 /* uncore_sys_ddr_pmu\000 */ },
 },
 };
 
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index a1899f35ec74..e821155151ec 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -397,6 +397,9 @@ class JsonEvent:
       self.desc += extra_desc
     if self.long_desc and extra_desc:
       self.long_desc += extra_desc
+    if self.desc and self.long_desc and self.desc == self.long_desc:
+        # Avoid duplicated descriptions.
+        self.long_desc = None
     if arch_std:
       if arch_std.lower() in _arch_std_events:
         event = _arch_std_events[arch_std.lower()].event
diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 8bbe0516ecc0..95fd9f671a22 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -53,7 +53,6 @@ static const struct perf_pmu_test_event bp_l1_btb_correct = {
 		.topic = "branch",
 	},
 	.alias_str = "event=0x8a",
-	.alias_long_desc = "L1 BTB Correction",
 };
 
 static const struct perf_pmu_test_event bp_l2_btb_correct = {
@@ -65,7 +64,6 @@ static const struct perf_pmu_test_event bp_l2_btb_correct = {
 		.topic = "branch",
 	},
 	.alias_str = "event=0x8b",
-	.alias_long_desc = "L2 BTB Correction",
 };
 
 static const struct perf_pmu_test_event segment_reg_loads_any = {
@@ -77,7 +75,6 @@ static const struct perf_pmu_test_event segment_reg_loads_any = {
 		.topic = "other",
 	},
 	.alias_str = "event=0x6,period=0x30d40,umask=0x80",
-	.alias_long_desc = "Number of segment register loads",
 };
 
 static const struct perf_pmu_test_event dispatch_blocked_any = {
@@ -89,7 +86,6 @@ static const struct perf_pmu_test_event dispatch_blocked_any = {
 		.topic = "other",
 	},
 	.alias_str = "event=0x9,period=0x30d40,umask=0x20",
-	.alias_long_desc = "Memory cluster signals to block micro-op dispatch for any reason",
 };
 
 static const struct perf_pmu_test_event eist_trans = {
@@ -101,7 +97,6 @@ static const struct perf_pmu_test_event eist_trans = {
 		.topic = "other",
 	},
 	.alias_str = "event=0x3a,period=0x30d40",
-	.alias_long_desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
 };
 
 static const struct perf_pmu_test_event l3_cache_rd = {
@@ -133,11 +128,9 @@ static const struct perf_pmu_test_event uncore_hisi_ddrc_flux_wcmd = {
 		.event = "event=2",
 		.desc = "DDRC write commands",
 		.topic = "uncore",
-		.long_desc = "DDRC write commands",
 		.pmu = "hisi_sccl,ddrc",
 	},
 	.alias_str = "event=0x2",
-	.alias_long_desc = "DDRC write commands",
 	.matching_pmu = "hisi_sccl1_ddrc2",
 };
 
@@ -147,11 +140,9 @@ static const struct perf_pmu_test_event unc_cbo_xsnp_response_miss_eviction = {
 		.event = "event=0x22,umask=0x81",
 		.desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
 		.topic = "uncore",
-		.long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
 		.pmu = "uncore_cbox",
 	},
 	.alias_str = "event=0x22,umask=0x81",
-	.alias_long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
 	.matching_pmu = "uncore_cbox_0",
 };
 
@@ -161,11 +152,9 @@ static const struct perf_pmu_test_event uncore_hyphen = {
 		.event = "event=0xe0",
 		.desc = "UNC_CBO_HYPHEN",
 		.topic = "uncore",
-		.long_desc = "UNC_CBO_HYPHEN",
 		.pmu = "uncore_cbox",
 	},
 	.alias_str = "event=0xe0",
-	.alias_long_desc = "UNC_CBO_HYPHEN",
 	.matching_pmu = "uncore_cbox_0",
 };
 
@@ -175,11 +164,9 @@ static const struct perf_pmu_test_event uncore_two_hyph = {
 		.event = "event=0xc0",
 		.desc = "UNC_CBO_TWO_HYPH",
 		.topic = "uncore",
-		.long_desc = "UNC_CBO_TWO_HYPH",
 		.pmu = "uncore_cbox",
 	},
 	.alias_str = "event=0xc0",
-	.alias_long_desc = "UNC_CBO_TWO_HYPH",
 	.matching_pmu = "uncore_cbox_0",
 };
 
@@ -189,11 +176,9 @@ static const struct perf_pmu_test_event uncore_hisi_l3c_rd_hit_cpipe = {
 		.event = "event=7",
 		.desc = "Total read hits",
 		.topic = "uncore",
-		.long_desc = "Total read hits",
 		.pmu = "hisi_sccl,l3c",
 	},
 	.alias_str = "event=0x7",
-	.alias_long_desc = "Total read hits",
 	.matching_pmu = "hisi_sccl3_l3c7",
 };
 
@@ -203,11 +188,9 @@ static const struct perf_pmu_test_event uncore_imc_free_running_cache_miss = {
 		.event = "event=0x12",
 		.desc = "Total cache misses",
 		.topic = "uncore",
-		.long_desc = "Total cache misses",
 		.pmu = "uncore_imc_free_running",
 	},
 	.alias_str = "event=0x12",
-	.alias_long_desc = "Total cache misses",
 	.matching_pmu = "uncore_imc_free_running_0",
 };
 
@@ -217,11 +200,9 @@ static const struct perf_pmu_test_event uncore_imc_cache_hits = {
 		.event = "event=0x34",
 		.desc = "Total cache hits",
 		.topic = "uncore",
-		.long_desc = "Total cache hits",
 		.pmu = "uncore_imc",
 	},
 	.alias_str = "event=0x34",
-	.alias_long_desc = "Total cache hits",
 	.matching_pmu = "uncore_imc_0",
 };
 
@@ -246,7 +227,6 @@ static const struct perf_pmu_test_event sys_ddr_pmu_write_cycles = {
 		.compat = "v8",
 	},
 	.alias_str = "event=0x2b",
-	.alias_long_desc = "ddr write-cycles event",
 	.matching_pmu = "uncore_sys_ddr_pmu0",
 };
 
@@ -260,7 +240,6 @@ static const struct perf_pmu_test_event sys_ccn_pmu_read_cycles = {
 		.compat = "0x01",
 	},
 	.alias_str = "config=0x2c",
-	.alias_long_desc = "ccn read-cycles event",
 	.matching_pmu = "uncore_sys_ccn_pmu4",
 };
 
@@ -274,7 +253,6 @@ static const struct perf_pmu_test_event sys_cmn_pmu_hnf_cache_miss = {
 		.compat = "(434|436|43c|43a).*",
 	},
 	.alias_str = "eventid=0x1,type=0x5",
-	.alias_long_desc = "Counts total cache misses in first lookup result (high priority)",
 	.matching_pmu = "uncore_sys_cmn_pmu0",
 };
 
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 23666883049d..b09b2ea2407a 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -623,8 +623,7 @@ static int perf_pmu__new_alias(struct perf_pmu *pmu, const char *name,
 
 	alias->name = strdup(name);
 	alias->desc = desc ? strdup(desc) : NULL;
-	alias->long_desc = long_desc ? strdup(long_desc) :
-				desc ? strdup(desc) : NULL;
+	alias->long_desc = long_desc ? strdup(long_desc) : NULL;
 	alias->topic = topic ? strdup(topic) : NULL;
 	alias->pmu_name = pmu_name ? strdup(pmu_name) : NULL;
 	if (unit) {

From 7d5b635d9f4314c93bc1f9828f5d757decb860bc Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:22 -0700
Subject: [PATCH 117/179] perf python: In str(evsel) use the evsel__pmu_name
 helper

The evsel__pmu_name helper will internally use evsel__find_pmu that
handles legacy events, extended types, etc. in determining a PMU and
will provide a better value than just trying to access the PMU's name
directly as the PMU may not have been computed.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index b5ee9f7a4662..0821205b1aaa 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -925,10 +925,7 @@ static PyObject *pyrf_evsel__str(PyObject *self)
 	struct pyrf_evsel *pevsel = (void *)self;
 	struct evsel *evsel = &pevsel->evsel;
 
-	if (!evsel->pmu)
-		return PyUnicode_FromFormat("evsel(%s)", evsel__name(evsel));
-
-	return PyUnicode_FromFormat("evsel(%s/%s/)", evsel->pmu->name, evsel__name(evsel));
+	return PyUnicode_FromFormat("evsel(%s/%s/)", evsel__pmu_name(evsel), evsel__name(evsel));
 }
 
 static PyMethodDef pyrf_evsel__methods[] = {

From 64ec9b997f3a9462901a404ad60f452f76dd2d6e Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:23 -0700
Subject: [PATCH 118/179] perf python: Fix thread check in pyrf_evsel__read

The CPU index is incorrectly checked rather than the thread index.

Fixes: 739621f65702 ("perf python: Add evsel read method")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 0821205b1aaa..4a3c2b4dd79f 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -910,7 +910,7 @@ static PyObject *pyrf_evsel__read(struct pyrf_evsel *pevsel,
 		return NULL;
 	}
 	thread_idx = perf_thread_map__idx(evsel->core.threads, thread);
-	if (cpu_idx < 0) {
+	if (thread_idx < 0) {
 		PyErr_Format(PyExc_TypeError, "Thread %d is not part of evsel's threads",
 			     thread);
 		return NULL;

From 6183afcba9c1c810656ddb36170106aaf3cf778c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:24 -0700
Subject: [PATCH 119/179] perf python: Correct pyrf_evsel__read for tool PMUs

Tool PMUs assume that stat's process_counter_values is being used to
read the counters. Specifically they hold onto old values in
evsel->prev_raw_counts and give the cumulative count based off of this
value. Update pyrf_evsel__read to allocate counts and prev_raw_counts,
use evsel__read_counter rather than perf_evsel__read so tool PMUs are
read from not just perf_event_open events, make the returned
pyrf_counts_values contain the delta value rather than the cumulative
value.

Fixes: 739621f65702 ("perf python: Add evsel read method")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 47 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 4a3c2b4dd79f..f689560192f4 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -10,6 +10,7 @@
 #endif
 #include <perf/mmap.h>
 #include "callchain.h"
+#include "counts.h"
 #include "evlist.h"
 #include "evsel.h"
 #include "event.h"
@@ -889,12 +890,38 @@ static PyObject *pyrf_evsel__threads(struct pyrf_evsel *pevsel)
 	return (PyObject *)pthread_map;
 }
 
+/*
+ * Ensure evsel's counts and prev_raw_counts are allocated, the latter
+ * used by tool PMUs to compute the cumulative count as expected by
+ * stat's process_counter_values.
+ */
+static int evsel__ensure_counts(struct evsel *evsel)
+{
+	int nthreads, ncpus;
+
+	if (evsel->counts != NULL)
+		return 0;
+
+	nthreads = perf_thread_map__nr(evsel->core.threads);
+	ncpus = perf_cpu_map__nr(evsel->core.cpus);
+
+	evsel->counts = perf_counts__new(ncpus, nthreads);
+	if (evsel->counts == NULL)
+		return -ENOMEM;
+
+	evsel->prev_raw_counts = perf_counts__new(ncpus, nthreads);
+	if (evsel->prev_raw_counts == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
 static PyObject *pyrf_evsel__read(struct pyrf_evsel *pevsel,
 				  PyObject *args, PyObject *kwargs)
 {
 	struct evsel *evsel = &pevsel->evsel;
 	int cpu = 0, cpu_idx, thread = 0, thread_idx;
-	struct perf_counts_values counts;
+	struct perf_counts_values *old_count, *new_count;
 	struct pyrf_counts_values *count_values = PyObject_New(struct pyrf_counts_values,
 							       &pyrf_counts_values__type);
 
@@ -915,8 +942,22 @@ static PyObject *pyrf_evsel__read(struct pyrf_evsel *pevsel,
 			     thread);
 		return NULL;
 	}
-	perf_evsel__read(&(evsel->core), cpu_idx, thread_idx, &counts);
-	count_values->values = counts;
+
+	if (evsel__ensure_counts(evsel))
+		return PyErr_NoMemory();
+
+	/* Set up pointers to the old and newly read counter values. */
+	old_count = perf_counts(evsel->prev_raw_counts, cpu_idx, thread_idx);
+	new_count = perf_counts(evsel->counts, cpu_idx, thread_idx);
+	/* Update the value in evsel->counts. */
+	evsel__read_counter(evsel, cpu_idx, thread_idx);
+	/* Copy the value and turn it into the delta from old_count. */
+	count_values->values = *new_count;
+	count_values->values.val -= old_count->val;
+	count_values->values.ena -= old_count->ena;
+	count_values->values.run -= old_count->run;
+	/* Save the new count over the old_count for the next read. */
+	*old_count = *new_count;
 	return (PyObject *)count_values;
 }
 

From 421c5f39adcdf292ca5c7162f40ed6d120d136a8 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:25 -0700
Subject: [PATCH 120/179] perf python: Improve leader copying from evlist

The struct pyrf_evlist embeds the evlist requiring the copying from
things like parsed events. The copying logic handles the leader being
the event itself, but if the leader group event is a different in the
list it will cause an evsel to point to the evsel in the list that was
copied from which is bad. Fix this by adding another pass over the
evlist rewriting leaders, simplified by the introductin of two evlist
helpers.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-13-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 57 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index f689560192f4..1d9fa33d377a 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1568,10 +1568,37 @@ static PyObject *pyrf_evsel__from_evsel(struct evsel *evsel)
 	return (PyObject *)pevsel;
 }
 
+static int evlist__pos(struct evlist *evlist, struct evsel *evsel)
+{
+	struct evsel *pos;
+	int idx = 0;
+
+	evlist__for_each_entry(evlist, pos) {
+		if (evsel == pos)
+			return idx;
+		idx++;
+	}
+	return -1;
+}
+
+static struct evsel *evlist__at(struct evlist *evlist, int idx)
+{
+	struct evsel *pos;
+	int idx2 = 0;
+
+	evlist__for_each_entry(evlist, pos) {
+		if (idx == idx2)
+			return pos;
+		idx2++;
+	}
+	return NULL;
+}
+
 static PyObject *pyrf_evlist__from_evlist(struct evlist *evlist)
 {
 	struct pyrf_evlist *pevlist = PyObject_New(struct pyrf_evlist, &pyrf_evlist__type);
 	struct evsel *pos;
+	struct rb_node *node;
 
 	if (!pevlist)
 		return NULL;
@@ -1583,9 +1610,39 @@ static PyObject *pyrf_evlist__from_evlist(struct evlist *evlist)
 
 		evlist__add(&pevlist->evlist, &pevsel->evsel);
 	}
+	evlist__for_each_entry(&pevlist->evlist, pos) {
+		struct evsel *leader = evsel__leader(pos);
+
+		if (pos != leader) {
+			int idx = evlist__pos(evlist, leader);
+
+			if (idx >= 0)
+				evsel__set_leader(pos, evlist__at(&pevlist->evlist, idx));
+			else if (leader == NULL)
+				evsel__set_leader(pos, pos);
+		}
+	}
 	metricgroup__copy_metric_events(&pevlist->evlist, /*cgrp=*/NULL,
 					&pevlist->evlist.metric_events,
 					&evlist->metric_events);
+	for (node = rb_first_cached(&pevlist->evlist.metric_events.entries); node;
+	     node = rb_next(node)) {
+		struct metric_event *me = container_of(node, struct metric_event, nd);
+		struct list_head *mpos;
+		int idx = evlist__pos(evlist, me->evsel);
+
+		if (idx >= 0)
+			me->evsel = evlist__at(&pevlist->evlist, idx);
+		list_for_each(mpos, &me->head) {
+			struct metric_expr *e = container_of(mpos, struct metric_expr, nd);
+
+			for (int j = 0; e->metric_events[j]; j++) {
+				idx = evlist__pos(evlist, e->metric_events[j]);
+				if (idx >= 0)
+					e->metric_events[j] = evlist__at(&pevlist->evlist, idx);
+			}
+		}
+	}
 	return (PyObject *)pevlist;
 }
 

From b4aff7ed7a4c1360e8b29d545c7bc9e05af1a995 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 10 Jul 2025 16:51:26 -0700
Subject: [PATCH 121/179] perf python: Set index error for invalid thread/cpu
 map items

Returning NULL for out of bound CPU or thread map items causes
internal errors. Fix by correctly setting the error to be an index
error.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250710235126.1086011-14-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 1d9fa33d377a..2f28f71325a8 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -529,8 +529,10 @@ static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
 {
 	struct pyrf_cpu_map *pcpus = (void *)obj;
 
-	if (i >= perf_cpu_map__nr(pcpus->cpus))
+	if (i >= perf_cpu_map__nr(pcpus->cpus)) {
+		PyErr_SetString(PyExc_IndexError, "Index out of range");
 		return NULL;
+	}
 
 	return Py_BuildValue("i", perf_cpu_map__cpu(pcpus->cpus, i).cpu);
 }
@@ -598,8 +600,10 @@ static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
 {
 	struct pyrf_thread_map *pthreads = (void *)obj;
 
-	if (i >= perf_thread_map__nr(pthreads->threads))
+	if (i >= perf_thread_map__nr(pthreads->threads)) {
+		PyErr_SetString(PyExc_IndexError, "Index out of range");
 		return NULL;
+	}
 
 	return Py_BuildValue("i", perf_thread_map__pid(pthreads->threads, i));
 }

From 8db1d772484dfa959044dd43dc28482c8c543b74 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Sun, 13 Jul 2025 22:21:43 -0700
Subject: [PATCH 122/179] perf ftrace latency: Add -e option to measure time
 between two events

In addition to the function latency, it can measure events latencies.
Some kernel tracepoints are paired and it's menningful to measure how
long it takes between the two events.  The latency is tracked for the
same thread.

Currently it only uses BPF to do the work but it can be lifted later.
Instead of having separate a BPF program for each tracepoint, it only
uses generic 'event_begin' and 'event_end' programs to attach to any
(raw) tracepoints.

  $ sudo perf ftrace latency -a -b --hide-empty \
    -e i915_request_wait_begin,i915_request_wait_end -- sleep 1
  #   DURATION     |      COUNT | GRAPH                                |
     256 -  512 us |          4 | ######                               |
       2 -    4 ms |          2 | ###                                  |
       4 -    8 ms |         12 | ###################                  |
       8 -   16 ms |         10 | ################                     |

  # statistics  (in usec)
    total time:               194915
      avg time:                 6961
      max time:                12855
      min time:                  373
         count:                   28

Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250714052143.342851-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-ftrace.txt    |   6 +
 tools/perf/builtin-ftrace.c                 |  50 +++++-
 tools/perf/util/bpf_ftrace.c                |  75 ++++++---
 tools/perf/util/bpf_skel/func_latency.bpf.c | 166 ++++++++++++--------
 tools/perf/util/ftrace.h                    |   1 +
 5 files changed, 214 insertions(+), 84 deletions(-)

diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index b77f58c4d2fd..914457853bcf 100644
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -139,6 +139,12 @@ OPTIONS for 'perf ftrace latency'
 	Set the function name to get the histogram.  Unlike perf ftrace trace,
 	it only allows single function to calculate the histogram.
 
+-e::
+--events=::
+	Set the pair of events to get the histogram.  The histogram is calculated
+	by the time difference between the two events from the same thread.  This
+	requires -b/--use-bpf option.
+
 -b::
 --use-bpf::
 	Use BPF to measure function latency instead of using the ftrace (it
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index 3a253a1b9f45..e1f2f3fb1b08 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -1549,6 +1549,33 @@ static void delete_filter_func(struct list_head *head)
 	}
 }
 
+static int parse_filter_event(const struct option *opt, const char *str,
+			     int unset __maybe_unused)
+{
+	struct list_head *head = opt->value;
+	struct filter_entry *entry;
+	char *s, *p;
+	int ret = -ENOMEM;
+
+	s = strdup(str);
+	if (s == NULL)
+		return -ENOMEM;
+
+	while ((p = strsep(&s, ",")) != NULL) {
+		entry = malloc(sizeof(*entry) + strlen(p) + 1);
+		if (entry == NULL)
+			goto out;
+
+		strcpy(entry->name, p);
+		list_add_tail(&entry->list, head);
+	}
+	ret = 0;
+
+out:
+	free(s);
+	return ret;
+}
+
 static int parse_buffer_size(const struct option *opt,
 			     const char *str, int unset)
 {
@@ -1711,6 +1738,8 @@ int cmd_ftrace(int argc, const char **argv)
 	const struct option latency_options[] = {
 	OPT_CALLBACK('T', "trace-funcs", &ftrace.filters, "func",
 		     "Show latency of given function", parse_filter_func),
+	OPT_CALLBACK('e', "events", &ftrace.event_pair, "event1,event2",
+		     "Show latency between the two events", parse_filter_event),
 #ifdef HAVE_BPF_SKEL
 	OPT_BOOLEAN('b', "use-bpf", &ftrace.target.use_bpf,
 		    "Use BPF to measure function latency"),
@@ -1763,6 +1792,7 @@ int cmd_ftrace(int argc, const char **argv)
 	INIT_LIST_HEAD(&ftrace.notrace);
 	INIT_LIST_HEAD(&ftrace.graph_funcs);
 	INIT_LIST_HEAD(&ftrace.nograph_funcs);
+	INIT_LIST_HEAD(&ftrace.event_pair);
 
 	signal(SIGINT, sig_handler);
 	signal(SIGUSR1, sig_handler);
@@ -1817,9 +1847,24 @@ int cmd_ftrace(int argc, const char **argv)
 		cmd_func = __cmd_ftrace;
 		break;
 	case PERF_FTRACE_LATENCY:
-		if (list_empty(&ftrace.filters)) {
-			pr_err("Should provide a function to measure\n");
+		if (list_empty(&ftrace.filters) && list_empty(&ftrace.event_pair)) {
+			pr_err("Should provide a function or events to measure\n");
 			parse_options_usage(ftrace_usage, options, "T", 1);
+			parse_options_usage(NULL, options, "e", 1);
+			ret = -EINVAL;
+			goto out_delete_filters;
+		}
+		if (!list_empty(&ftrace.filters) && !list_empty(&ftrace.event_pair)) {
+			pr_err("Please specify either of function or events\n");
+			parse_options_usage(ftrace_usage, options, "T", 1);
+			parse_options_usage(NULL, options, "e", 1);
+			ret = -EINVAL;
+			goto out_delete_filters;
+		}
+		if (!list_empty(&ftrace.event_pair) && !ftrace.target.use_bpf) {
+			pr_err("Event processing needs BPF\n");
+			parse_options_usage(ftrace_usage, options, "b", 1);
+			parse_options_usage(NULL, options, "e", 1);
 			ret = -EINVAL;
 			goto out_delete_filters;
 		}
@@ -1910,6 +1955,7 @@ int cmd_ftrace(int argc, const char **argv)
 	delete_filter_func(&ftrace.notrace);
 	delete_filter_func(&ftrace.graph_funcs);
 	delete_filter_func(&ftrace.nograph_funcs);
+	delete_filter_func(&ftrace.event_pair);
 
 	return ret;
 }
diff --git a/tools/perf/util/bpf_ftrace.c b/tools/perf/util/bpf_ftrace.c
index 7324668cc83e..0cb02412043c 100644
--- a/tools/perf/util/bpf_ftrace.c
+++ b/tools/perf/util/bpf_ftrace.c
@@ -21,16 +21,27 @@ int perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace)
 {
 	int fd, err;
 	int i, ncpus = 1, ntasks = 1;
-	struct filter_entry *func;
+	struct filter_entry *func = NULL;
 
-	if (!list_is_singular(&ftrace->filters)) {
-		pr_err("ERROR: %s target function(s).\n",
-		       list_empty(&ftrace->filters) ? "No" : "Too many");
-		return -1;
+	if (!list_empty(&ftrace->filters)) {
+		if (!list_is_singular(&ftrace->filters)) {
+			pr_err("ERROR: Too many target functions.\n");
+			return -1;
+		}
+		func = list_first_entry(&ftrace->filters, struct filter_entry, list);
+	} else {
+		int count = 0;
+		struct list_head *pos;
+
+		list_for_each(pos, &ftrace->event_pair)
+			count++;
+
+		if (count != 2) {
+			pr_err("ERROR: Needs two target events.\n");
+			return -1;
+		}
 	}
 
-	func = list_first_entry(&ftrace->filters, struct filter_entry, list);
-
 	skel = func_latency_bpf__open();
 	if (!skel) {
 		pr_err("Failed to open func latency skeleton\n");
@@ -93,20 +104,44 @@ int perf_ftrace__latency_prepare_bpf(struct perf_ftrace *ftrace)
 
 	skel->bss->min = INT64_MAX;
 
-	skel->links.func_begin = bpf_program__attach_kprobe(skel->progs.func_begin,
-							    false, func->name);
-	if (IS_ERR(skel->links.func_begin)) {
-		pr_err("Failed to attach fentry program\n");
-		err = PTR_ERR(skel->links.func_begin);
-		goto out;
-	}
+	if (func) {
+		skel->links.func_begin = bpf_program__attach_kprobe(skel->progs.func_begin,
+								    false, func->name);
+		if (IS_ERR(skel->links.func_begin)) {
+			pr_err("Failed to attach fentry program\n");
+			err = PTR_ERR(skel->links.func_begin);
+			goto out;
+		}
 
-	skel->links.func_end = bpf_program__attach_kprobe(skel->progs.func_end,
-							  true, func->name);
-	if (IS_ERR(skel->links.func_end)) {
-		pr_err("Failed to attach fexit program\n");
-		err = PTR_ERR(skel->links.func_end);
-		goto out;
+		skel->links.func_end = bpf_program__attach_kprobe(skel->progs.func_end,
+								  true, func->name);
+		if (IS_ERR(skel->links.func_end)) {
+			pr_err("Failed to attach fexit program\n");
+			err = PTR_ERR(skel->links.func_end);
+			goto out;
+		}
+	} else {
+		struct filter_entry *event;
+
+		event = list_first_entry(&ftrace->event_pair, struct filter_entry, list);
+
+		skel->links.event_begin = bpf_program__attach_raw_tracepoint(skel->progs.event_begin,
+									     event->name);
+		if (IS_ERR(skel->links.event_begin)) {
+			pr_err("Failed to attach first tracepoint program\n");
+			err = PTR_ERR(skel->links.event_begin);
+			goto out;
+		}
+
+		event = list_next_entry(event, list);
+
+		skel->links.event_end = bpf_program__attach_raw_tracepoint(skel->progs.event_end,
+									     event->name);
+		if (IS_ERR(skel->links.event_end)) {
+			pr_err("Failed to attach second tracepoint program\n");
+			err = PTR_ERR(skel->links.event_end);
+			goto out;
+		}
 	}
 
 	/* XXX: we don't actually use this fd - just for poll() */
diff --git a/tools/perf/util/bpf_skel/func_latency.bpf.c b/tools/perf/util/bpf_skel/func_latency.bpf.c
index e731a79a753a..621e2022c8bc 100644
--- a/tools/perf/util/bpf_skel/func_latency.bpf.c
+++ b/tools/perf/util/bpf_skel/func_latency.bpf.c
@@ -52,34 +52,89 @@ const volatile unsigned int min_latency;
 const volatile unsigned int max_latency;
 const volatile unsigned int bucket_num = NUM_BUCKET;
 
-SEC("kprobe/func")
-int BPF_PROG(func_begin)
+static bool can_record(void)
 {
-	__u64 key, now;
-
-	if (!enabled)
-		return 0;
-
-	key = bpf_get_current_pid_tgid();
-
 	if (has_cpu) {
 		__u32 cpu = bpf_get_smp_processor_id();
 		__u8 *ok;
 
 		ok = bpf_map_lookup_elem(&cpu_filter, &cpu);
 		if (!ok)
-			return 0;
+			return false;
 	}
 
 	if (has_task) {
-		__u32 pid = key & 0xffffffff;
+		__u32 pid = bpf_get_current_pid_tgid();
 		__u8 *ok;
 
 		ok = bpf_map_lookup_elem(&task_filter, &pid);
 		if (!ok)
-			return 0;
+			return false;
+	}
+	return true;
+}
+
+static void update_latency(__s64 delta)
+{
+	__u64 val = delta;
+	__u32 key = 0;
+	__u64 *hist;
+	__u64 cmp_base = use_nsec ? 1 : 1000;
+
+	if (delta < 0)
+		return;
+
+	if (bucket_range != 0) {
+		val = delta / cmp_base;
+
+		if (min_latency > 0) {
+			if (val > min_latency)
+				val -= min_latency;
+			else
+				goto do_lookup;
+		}
+
+		// Less than 1 unit (ms or ns), or, in the future,
+		// than the min latency desired.
+		if (val > 0) { // 1st entry: [ 1 unit .. bucket_range units )
+			key = val / bucket_range + 1;
+			if (key >= bucket_num)
+				key = bucket_num - 1;
+		}
+
+		goto do_lookup;
+	}
+	// calculate index using delta
+	for (key = 0; key < (bucket_num - 1); key++) {
+		if (delta < (cmp_base << key))
+			break;
 	}
 
+do_lookup:
+	hist = bpf_map_lookup_elem(&latency, &key);
+	if (!hist)
+		return;
+
+	__sync_fetch_and_add(hist, 1);
+
+	__sync_fetch_and_add(&total, delta); // always in nsec
+	__sync_fetch_and_add(&count, 1);
+
+	if (delta > max)
+		max = delta;
+	if (delta < min)
+		min = delta;
+}
+
+SEC("kprobe/func")
+int BPF_PROG(func_begin)
+{
+	__u64 key, now;
+
+	if (!enabled || !can_record())
+		return 0;
+
+	key = bpf_get_current_pid_tgid();
 	now = bpf_ktime_get_ns();
 
 	// overwrite timestamp for nested functions
@@ -92,7 +147,6 @@ int BPF_PROG(func_end)
 {
 	__u64 tid;
 	__u64 *start;
-	__u64 cmp_base = use_nsec ? 1 : 1000;
 
 	if (!enabled)
 		return 0;
@@ -101,56 +155,44 @@ int BPF_PROG(func_end)
 
 	start = bpf_map_lookup_elem(&functime, &tid);
 	if (start) {
-		__s64 delta = bpf_ktime_get_ns() - *start;
-		__u64 val = delta;
-		__u32 key = 0;
-		__u64 *hist;
-
+		update_latency(bpf_ktime_get_ns() - *start);
+		bpf_map_delete_elem(&functime, &tid);
+	}
+
+	return 0;
+}
+
+SEC("raw_tp")
+int BPF_PROG(event_begin)
+{
+	__u64 key, now;
+
+	if (!enabled || !can_record())
+		return 0;
+
+	key = bpf_get_current_pid_tgid();
+	now = bpf_ktime_get_ns();
+
+	// overwrite timestamp for nested events
+	bpf_map_update_elem(&functime, &key, &now, BPF_ANY);
+	return 0;
+}
+
+SEC("raw_tp")
+int BPF_PROG(event_end)
+{
+	__u64 tid;
+	__u64 *start;
+
+	if (!enabled)
+		return 0;
+
+	tid = bpf_get_current_pid_tgid();
+
+	start = bpf_map_lookup_elem(&functime, &tid);
+	if (start) {
+		update_latency(bpf_ktime_get_ns() - *start);
 		bpf_map_delete_elem(&functime, &tid);
-
-		if (delta < 0)
-			return 0;
-
-		if (bucket_range != 0) {
-			val = delta / cmp_base;
-
-			if (min_latency > 0) {
-				if (val > min_latency)
-					val -= min_latency;
-				else
-					goto do_lookup;
-			}
-
-			// Less than 1 unit (ms or ns), or, in the future,
-			// than the min latency desired.
-			if (val > 0) { // 1st entry: [ 1 unit .. bucket_range units )
-				key = val / bucket_range + 1;
-				if (key >= bucket_num)
-					key = bucket_num - 1;
-			}
-
-			goto do_lookup;
-		}
-		// calculate index using delta
-		for (key = 0; key < (bucket_num - 1); key++) {
-			if (delta < (cmp_base << key))
-				break;
-		}
-
-do_lookup:
-		hist = bpf_map_lookup_elem(&latency, &key);
-		if (!hist)
-			return 0;
-
-		__sync_fetch_and_add(hist, 1);
-
-		__sync_fetch_and_add(&total, delta); // always in nsec
-		__sync_fetch_and_add(&count, 1);
-
-		if (delta > max)
-			max = delta;
-		if (delta < min)
-			min = delta;
 	}
 
 	return 0;
diff --git a/tools/perf/util/ftrace.h b/tools/perf/util/ftrace.h
index a9bc47da83a5..3f5094ac5908 100644
--- a/tools/perf/util/ftrace.h
+++ b/tools/perf/util/ftrace.h
@@ -17,6 +17,7 @@ struct perf_ftrace {
 	struct list_head	notrace;
 	struct list_head	graph_funcs;
 	struct list_head	nograph_funcs;
+	struct list_head	event_pair;
 	struct hashmap		*profile_hash;
 	unsigned long		percpu_buffer_size;
 	bool			inherit;

From 95d692f9aba7c13b5b3e8d842656c47bde7e551f Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 15 Jul 2025 17:46:35 -0700
Subject: [PATCH 123/179] perf flamegraph: Fix minor pylint/type hint issues

Switch to assuming python3. Fix minor pylint issues on line length,
repeated compares, not using f-strings and variable case. Add type
hints and check with mypy.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250716004635.31161-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/scripts/python/flamegraph.py | 61 +++++++++++++------------
 1 file changed, 33 insertions(+), 28 deletions(-)

diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py
index e49ff242b779..ad735990c5be 100755
--- a/tools/perf/scripts/python/flamegraph.py
+++ b/tools/perf/scripts/python/flamegraph.py
@@ -18,7 +18,6 @@
 # pylint: disable=missing-class-docstring
 # pylint: disable=missing-function-docstring
 
-from __future__ import print_function
 import argparse
 import hashlib
 import io
@@ -26,9 +25,10 @@ import json
 import os
 import subprocess
 import sys
+from typing import Dict, Optional, Union
 import urllib.request
 
-minimal_html = """<head>
+MINIMAL_HTML = """<head>
   <link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/d3-flamegraph.css">
 </head>
 <body>
@@ -50,20 +50,20 @@ minimal_html = """<head>
 
 # pylint: disable=too-few-public-methods
 class Node:
-    def __init__(self, name, libtype):
+    def __init__(self, name: str, libtype: str):
         self.name = name
         # "root" | "kernel" | ""
         # "" indicates user space
         self.libtype = libtype
-        self.value = 0
-        self.children = []
+        self.value: int = 0
+        self.children: list[Node] = []
 
-    def to_json(self):
+    def to_json(self) -> Dict[str, Union[str, int, list[Dict]]]:
         return {
             "n": self.name,
             "l": self.libtype,
             "v": self.value,
-            "c": self.children
+            "c": [x.to_json() for x in self.children]
         }
 
 
@@ -73,7 +73,7 @@ class FlameGraphCLI:
         self.stack = Node("all", "root")
 
     @staticmethod
-    def get_libtype_from_dso(dso):
+    def get_libtype_from_dso(dso: Optional[str]) -> str:
         """
         when kernel-debuginfo is installed,
         dso points to /usr/lib/debug/lib/modules/*/vmlinux
@@ -84,7 +84,7 @@ class FlameGraphCLI:
         return ""
 
     @staticmethod
-    def find_or_create_node(node, name, libtype):
+    def find_or_create_node(node: Node, name: str, libtype: str) -> Node:
         for child in node.children:
             if child.name == name:
                 return child
@@ -93,7 +93,7 @@ class FlameGraphCLI:
         node.children.append(child)
         return child
 
-    def process_event(self, event):
+    def process_event(self, event) -> None:
         # ignore events where the event name does not match
         # the one specified by the user
         if self.args.event_name and event.get("ev_name") != self.args.event_name:
@@ -106,7 +106,7 @@ class FlameGraphCLI:
             comm = event["comm"]
             libtype = "kernel"
         else:
-            comm = "{} ({})".format(event["comm"], pid)
+            comm = f"{event['comm']} ({pid})"
             libtype = ""
         node = self.find_or_create_node(self.stack, comm, libtype)
 
@@ -121,7 +121,7 @@ class FlameGraphCLI:
             node = self.find_or_create_node(node, name, libtype)
         node.value += 1
 
-    def get_report_header(self):
+    def get_report_header(self) -> str:
         if self.args.input == "-":
             # when this script is invoked with "perf script flamegraph",
             # no perf.data is created and we cannot read the header of it
@@ -131,7 +131,8 @@ class FlameGraphCLI:
             # if the file name other than perf.data is given,
             # we read the header of that file
             if self.args.input:
-                output = subprocess.check_output(["perf", "report", "--header-only", "-i", self.args.input])
+                output = subprocess.check_output(["perf", "report", "--header-only",
+                                                  "-i", self.args.input])
             else:
                 output = subprocess.check_output(["perf", "report", "--header-only"])
 
@@ -140,10 +141,10 @@ class FlameGraphCLI:
                 result += "\nFocused event: " + self.args.event_name
             return result
         except Exception as err:  # pylint: disable=broad-except
-            print("Error reading report header: {}".format(err), file=sys.stderr)
+            print(f"Error reading report header: {err}", file=sys.stderr)
             return ""
 
-    def trace_end(self):
+    def trace_end(self) -> None:
         stacks_json = json.dumps(self.stack, default=lambda x: x.to_json())
 
         if self.args.format == "html":
@@ -167,7 +168,8 @@ graph template (--template PATH) or use another output format (--format
 FORMAT).""",
                               file=sys.stderr)
                         if self.args.input == "-":
-                            print("""Not attempting to download Flame Graph template as script command line
+                            print(
+"""Not attempting to download Flame Graph template as script command line
 input is disabled due to using live mode. If you want to download the
 template retry without live mode. For example, use 'perf record -a -g
 -F 99 sleep 60' and 'perf script report flamegraph'. Alternatively,
@@ -176,37 +178,40 @@ https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/d3-flamegraph-b
 and place it at:
 /usr/share/d3-flame-graph/d3-flamegraph-base.html""",
                                   file=sys.stderr)
-                            quit()
+                            sys.exit(1)
                         s = None
-                        while s != "y" and s != "n":
-                            s = input("Do you wish to download a template from cdn.jsdelivr.net? (this warning can be suppressed with --allow-download) [yn] ").lower()
+                        while s not in ["y", "n"]:
+                            s = input("Do you wish to download a template from cdn.jsdelivr.net?" +
+                                      "(this warning can be suppressed with --allow-download) [yn] "
+                                      ).lower()
                         if s == "n":
-                            quit()
-                    template = "https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/d3-flamegraph-base.html"
+                            sys.exit(1)
+                    template = ("https://cdn.jsdelivr.net/npm/d3-flame-graph@4.1.3/dist/templates/"
+                                "d3-flamegraph-base.html")
                     template_md5sum = "143e0d06ba69b8370b9848dcd6ae3f36"
 
             try:
-                with urllib.request.urlopen(template) as template:
+                with urllib.request.urlopen(template) as url_template:
                     output_str = "".join([
-                        l.decode("utf-8") for l in template.readlines()
+                        l.decode("utf-8") for l in url_template.readlines()
                     ])
             except Exception as err:
                 print(f"Error reading template {template}: {err}\n"
                       "a minimal flame graph will be generated", file=sys.stderr)
-                output_str = minimal_html
+                output_str = MINIMAL_HTML
                 template_md5sum = None
 
             if template_md5sum:
                 download_md5sum = hashlib.md5(output_str.encode("utf-8")).hexdigest()
                 if download_md5sum != template_md5sum:
                     s = None
-                    while s != "y" and s != "n":
+                    while s not in ["y", "n"]:
                         s = input(f"""Unexpected template md5sum.
 {download_md5sum} != {template_md5sum}, for:
 {output_str}
 continue?[yn] """).lower()
                     if s == "n":
-                        quit()
+                        sys.exit(1)
 
             output_str = output_str.replace("/** @options_json **/", options_json)
             output_str = output_str.replace("/** @flamegraph_json **/", stacks_json)
@@ -220,12 +225,12 @@ continue?[yn] """).lower()
             with io.open(sys.stdout.fileno(), "w", encoding="utf-8", closefd=False) as out:
                 out.write(output_str)
         else:
-            print("dumping data to {}".format(output_fn))
+            print(f"dumping data to {output_fn}")
             try:
                 with io.open(output_fn, "w", encoding="utf-8") as out:
                     out.write(output_str)
             except IOError as err:
-                print("Error writing output file: {}".format(err), file=sys.stderr)
+                print(f"Error writing output file: {err}", file=sys.stderr)
                 sys.exit(1)
 
 

From 39f473f6d0b24cf375893f2110b1cc9d8a079a42 Mon Sep 17 00:00:00 2001
From: Anubhav Shelat <ashelat@redhat.com>
Date: Wed, 16 Jul 2025 16:39:15 -0400
Subject: [PATCH 124/179] perf sched timehist: decode process names of
 processes in zombie state

Previously when running perf trace timehist --state, when recording
processes in the zombie state the process name would not be decoded
properly and appears with just the PID:

1140057.412177 [0006]  Mutter Input Th[3139/3104]          0.956      0.019      0.041      S
1140057.412222 [0012]  :1248612[1248612]                   0.000      0.000      0.332      Z
1140057.412275 [0004]  <idle>                              0.052      0.052      0.953      I
1140057.412284 [0008]  <idle>                              0.070      0.070      0.932      I
1140057.412333 [0004]  KMS thread[3126/3104]               0.953      0.112      0.058      S

Now some extra processing has been added to decode the process name:

1140057.412177 [0006]  Mutter Input Th[3139/3104]          0.956      0.019      0.041      S
1140057.412222 [0012]  sleep[1248612]                      0.000      0.000      0.332      Z
1140057.412275 [0004]  <idle>                              0.052      0.052      0.953      I
1140057.412284 [0008]  <idle>                              0.070      0.070      0.932      I
1140057.412333 [0004]  KMS thread[3126/3104]               0.953      0.112      0.058      S

Signed-off-by: Anubhav Shelat <ashelat@redhat.com>
Link: https://lore.kernel.org/r/20250716203914.45772-2-ashelat@redhat.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 4bbebd6ef2e4..34051ad23493 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -2201,6 +2201,11 @@ static void timehist_print_sample(struct perf_sched *sched,
 		printf(" ");
 	}
 
+	if (!thread__comm_set(thread)) {
+                const char *prev_comm = evsel__strval(evsel, sample, "prev_comm");
+                thread__set_comm(thread, prev_comm, sample->time);
+        }
+
 	printf(" %-*s ", comm_width, timehist_get_commstr(thread));
 
 	if (sched->show_prio)

From e9fdf0d2ecc095ce9f078588c7ce06967e0138b2 Mon Sep 17 00:00:00 2001
From: Federico Pellegrin <fede@evolware.org>
Date: Fri, 18 Jul 2025 06:12:24 +0200
Subject: [PATCH 125/179] perf build: Always disable stack protection for BPF
 skeleton objects

When the clang toolchain has stack protection enabled, the bpf
skeletons build fails with:

error: A call to built-in function '__stack_chk_fail' is not supported.

Since stack-protector makes no sense for the BPF bits, just unconditionally
disable it.

See also similar case at 878625e1c7a10dfbb1fdaaaae2c4d2a58fbce627

Signed-off-by: Federico Pellegrin <fede@evolware.org>
Link: https://lore.kernel.org/r/20250718041224.12389-1-fede@evolware.org
[ rearrange long lines ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Makefile.perf | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 9b51593628c1..e2150acc2c13 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -1249,8 +1249,10 @@ else
 	$(Q)cp "$(VMLINUX_H)" $@
 endif
 
-$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(OUTPUT)PERF-VERSION-FILE util/bpf_skel/perf_version.h $(LIBBPF) $(SKEL_OUT)/vmlinux.h | $(SKEL_TMP_OUT)
-	$(QUIET_CLANG)$(CLANG) -g -O2 --target=bpf $(CLANG_OPTIONS) $(BPF_INCLUDE) $(TOOLS_UAPI_INCLUDE) \
+$(SKEL_TMP_OUT)/%.bpf.o: $(OUTPUT)PERF-VERSION-FILE util/bpf_skel/perf_version.h | $(SKEL_TMP_OUT)
+$(SKEL_TMP_OUT)/%.bpf.o: util/bpf_skel/%.bpf.c $(LIBBPF) $(SKEL_OUT)/vmlinux.h
+	$(QUIET_CLANG)$(CLANG) -g -O2 -fno-stack-protector --target=bpf \
+	  $(CLANG_OPTIONS) $(BPF_INCLUDE) $(TOOLS_UAPI_INCLUDE) \
 	  -include $(OUTPUT)PERF-VERSION-FILE -include util/bpf_skel/perf_version.h \
 	  -c $(filter util/bpf_skel/%.bpf.c,$^) -o $@
 

From 129f70bd6063d701c3ecb63ecdd4b5ee520cfd45 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@huawei.com>
Date: Fri, 13 Jun 2025 19:40:47 +0800
Subject: [PATCH 126/179] perf: ftrace: add graph tracer options
 args/retval/retval-hex/retaddr

This change adds support for new funcgraph tracer options funcgraph-args,
funcgraph-retval, funcgraph-retval-hex and funcgraph-retaddr.

The new added options are:
  - args       : Show function arguments.
  - retval     : Show function return value.
  - retval-hex : Show function return value in hexadecimal format.
  - retaddr    : Show function return address.

 # ./perf ftrace -G vfs_write --graph-opts retval,retaddr
 # tracer: function_graph
 #
 # CPU  DURATION                  FUNCTION CALLS
 # |     |   |                     |   |   |   |
 5)               |  mutex_unlock() { /* <-rb_simple_write+0xda/0x150 */
 5)   0.188 us    |    local_clock(); /* <-lock_release+0x2ad/0x440 ret=0x3bf2a3cf90e */
 5)               |    rt_mutex_slowunlock() { /* <-rb_simple_write+0xda/0x150 */
 5)               |      _raw_spin_lock_irqsave() { /* <-rt_mutex_slowunlock+0x4f/0x200 */
 5)   0.123 us    |        preempt_count_add(); /* <-_raw_spin_lock_irqsave+0x23/0x90 ret=0x0 */
 5)   0.128 us    |        local_clock(); /* <-__lock_acquire.isra.0+0x17a/0x740 ret=0x3bf2a3cfc8b */
 5)   0.086 us    |        do_raw_spin_trylock(); /* <-_raw_spin_lock_irqsave+0x4a/0x90 ret=0x1 */
 5)   0.845 us    |      } /* _raw_spin_lock_irqsave ret=0x292 */
 5)               |      _raw_spin_unlock_irqrestore() { /* <-rt_mutex_slowunlock+0x191/0x200 */
 5)   0.097 us    |        local_clock(); /* <-lock_release+0x2ad/0x440 ret=0x3bf2a3cff1f */
 5)   0.086 us    |        do_raw_spin_unlock(); /* <-_raw_spin_unlock_irqrestore+0x23/0x60 ret=0x1 */
 5)   0.104 us    |        preempt_count_sub(); /* <-_raw_spin_unlock_irqrestore+0x35/0x60 ret=0x0 */
 5)   0.726 us    |      } /* _raw_spin_unlock_irqrestore ret=0x80000000 */
 5)   1.881 us    |    } /* rt_mutex_slowunlock ret=0x0 */
 5)   2.931 us    |  } /* mutex_unlock ret=0x0 */

Signed-off-by: Changbin Du <changbin.du@huawei.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250613114048.132336-1-changbin.du@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-ftrace.txt |  4 ++
 tools/perf/builtin-ftrace.c              | 60 +++++++++++++++++++++++-
 tools/perf/util/ftrace.h                 |  4 ++
 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-ftrace.txt b/tools/perf/Documentation/perf-ftrace.txt
index 914457853bcf..3f3808e513fe 100644
--- a/tools/perf/Documentation/perf-ftrace.txt
+++ b/tools/perf/Documentation/perf-ftrace.txt
@@ -123,6 +123,10 @@ OPTIONS for 'perf ftrace trace'
 --graph-opts::
 	List of options allowed to set:
 
+	  - args         - Show function arguments.
+	  - retval       - Show function return value.
+	  - retval-hex   - Show function return value in hexadecimal format.
+	  - retaddr      - Show function return address.
 	  - nosleep-time - Measure on-CPU time only for function_graph tracer.
 	  - noirqs       - Ignore functions that happen inside interrupt.
 	  - verbose      - Show process names, PIDs, timestamps, etc.
diff --git a/tools/perf/builtin-ftrace.c b/tools/perf/builtin-ftrace.c
index e1f2f3fb1b08..6b6eec65f93f 100644
--- a/tools/perf/builtin-ftrace.c
+++ b/tools/perf/builtin-ftrace.c
@@ -301,6 +301,10 @@ static void reset_tracing_options(struct perf_ftrace *ftrace __maybe_unused)
 	write_tracing_option_file("funcgraph-proc", "0");
 	write_tracing_option_file("funcgraph-abstime", "0");
 	write_tracing_option_file("funcgraph-tail", "0");
+	write_tracing_option_file("funcgraph-args", "0");
+	write_tracing_option_file("funcgraph-retval", "0");
+	write_tracing_option_file("funcgraph-retval-hex", "0");
+	write_tracing_option_file("funcgraph-retaddr", "0");
 	write_tracing_option_file("latency-format", "0");
 	write_tracing_option_file("irq-info", "0");
 }
@@ -542,6 +546,41 @@ static int set_tracing_sleep_time(struct perf_ftrace *ftrace)
 	return 0;
 }
 
+static int set_tracing_funcgraph_args(struct perf_ftrace *ftrace)
+{
+	if (ftrace->graph_args) {
+		if (write_tracing_option_file("funcgraph-args", "1") < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int set_tracing_funcgraph_retval(struct perf_ftrace *ftrace)
+{
+	if (ftrace->graph_retval || ftrace->graph_retval_hex) {
+		if (write_tracing_option_file("funcgraph-retval", "1") < 0)
+			return -1;
+	}
+
+	if (ftrace->graph_retval_hex) {
+		if (write_tracing_option_file("funcgraph-retval-hex", "1") < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int set_tracing_funcgraph_retaddr(struct perf_ftrace *ftrace)
+{
+	if (ftrace->graph_retaddr) {
+		if (write_tracing_option_file("funcgraph-retaddr", "1") < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
 static int set_tracing_funcgraph_irqs(struct perf_ftrace *ftrace)
 {
 	if (!ftrace->graph_noirqs)
@@ -642,6 +681,21 @@ static int set_tracing_options(struct perf_ftrace *ftrace)
 		return -1;
 	}
 
+	if (set_tracing_funcgraph_args(ftrace) < 0) {
+		pr_err("failed to set tracing option funcgraph-args\n");
+		return -1;
+	}
+
+	if (set_tracing_funcgraph_retval(ftrace) < 0) {
+		pr_err("failed to set tracing option funcgraph-retval\n");
+		return -1;
+	}
+
+	if (set_tracing_funcgraph_retaddr(ftrace) < 0) {
+		pr_err("failed to set tracing option funcgraph-retaddr\n");
+		return -1;
+	}
+
 	if (set_tracing_funcgraph_irqs(ftrace) < 0) {
 		pr_err("failed to set tracing option funcgraph-irqs\n");
 		return -1;
@@ -1634,6 +1688,10 @@ static int parse_graph_tracer_opts(const struct option *opt,
 	int ret;
 	struct perf_ftrace *ftrace = (struct perf_ftrace *) opt->value;
 	struct sublevel_option graph_tracer_opts[] = {
+		{ .name = "args",		.value_ptr = &ftrace->graph_args },
+		{ .name = "retval",		.value_ptr = &ftrace->graph_retval },
+		{ .name = "retval-hex",		.value_ptr = &ftrace->graph_retval_hex },
+		{ .name = "retaddr",		.value_ptr = &ftrace->graph_retaddr },
 		{ .name = "nosleep-time",	.value_ptr = &ftrace->graph_nosleep_time },
 		{ .name = "noirqs",		.value_ptr = &ftrace->graph_noirqs },
 		{ .name = "verbose",		.value_ptr = &ftrace->graph_verbose },
@@ -1725,7 +1783,7 @@ int cmd_ftrace(int argc, const char **argv)
 	OPT_CALLBACK('g', "nograph-funcs", &ftrace.nograph_funcs, "func",
 		     "Set nograph filter on given functions", parse_filter_func),
 	OPT_CALLBACK(0, "graph-opts", &ftrace, "options",
-		     "Graph tracer options, available options: nosleep-time,noirqs,verbose,thresh=<n>,depth=<n>",
+		     "Graph tracer options, available options: args,retval,retval-hex,retaddr,nosleep-time,noirqs,verbose,thresh=<n>,depth=<n>",
 		     parse_graph_tracer_opts),
 	OPT_CALLBACK('m', "buffer-size", &ftrace.percpu_buffer_size, "size",
 		     "Size of per cpu buffer, needs to use a B, K, M or G suffix.", parse_buffer_size),
diff --git a/tools/perf/util/ftrace.h b/tools/perf/util/ftrace.h
index 3f5094ac5908..950f2efafad2 100644
--- a/tools/perf/util/ftrace.h
+++ b/tools/perf/util/ftrace.h
@@ -30,6 +30,10 @@ struct perf_ftrace {
 	int			graph_depth;
 	int			func_stack_trace;
 	int			func_irq_info;
+	int			graph_args;
+	int			graph_retval;
+	int			graph_retval_hex;
+	int			graph_retaddr;
 	int			graph_nosleep_time;
 	int			graph_noirqs;
 	int			graph_verbose;

From 478272d1cdd9959a6d638e9d81f70642f04290c9 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 17 Jul 2025 08:08:53 -0700
Subject: [PATCH 127/179] tools subcmd: Tighten the filename size in
 check_if_command_finished

FILENAME_MAX is often PATH_MAX (4kb), far more than needed for the
/proc path. Make the buffer size sufficient for the maximum integer
plus "/proc/" and "/status" with a '\0' terminator.

Fixes: 5ce42b5de461 ("tools subcmd: Add non-waitpid check_if_command_finished()")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250717150855.1032526-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/subcmd/run-command.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/lib/subcmd/run-command.c b/tools/lib/subcmd/run-command.c
index 0a764c25c384..b7510f83209a 100644
--- a/tools/lib/subcmd/run-command.c
+++ b/tools/lib/subcmd/run-command.c
@@ -5,6 +5,7 @@
 #include <ctype.h>
 #include <fcntl.h>
 #include <string.h>
+#include <linux/compiler.h>
 #include <linux/string.h>
 #include <errno.h>
 #include <sys/wait.h>
@@ -216,10 +217,20 @@ static int wait_or_whine(struct child_process *cmd, bool block)
 	return result;
 }
 
+/*
+ * Conservative estimate of number of characaters needed to hold an a decoded
+ * integer, assume each 3 bits needs a character byte and plus a possible sign
+ * character.
+ */
+#ifndef is_signed_type
+#define is_signed_type(type) (((type)(-1)) < (type)1)
+#endif
+#define MAX_STRLEN_TYPE(type) (sizeof(type) * 8 / 3 + (is_signed_type(type) ? 1 : 0))
+
 int check_if_command_finished(struct child_process *cmd)
 {
 #ifdef __linux__
-	char filename[FILENAME_MAX + 12];
+	char filename[6 + MAX_STRLEN_TYPE(typeof(cmd->pid)) + 7 + 1];
 	char status_line[256];
 	FILE *status_file;
 
@@ -227,7 +238,7 @@ int check_if_command_finished(struct child_process *cmd)
 	 * Check by reading /proc/<pid>/status as calling waitpid causes
 	 * stdout/stderr to be closed and data lost.
 	 */
-	sprintf(filename, "/proc/%d/status", cmd->pid);
+	sprintf(filename, "/proc/%u/status", cmd->pid);
 	status_file = fopen(filename, "r");
 	if (status_file == NULL) {
 		/* Open failed assume finish_command was called. */

From 82aac553372cd201b91a8b064be0cd5a501932b2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 17 Jul 2025 08:08:54 -0700
Subject: [PATCH 128/179] perf pmu: Switch FILENAME_MAX to NAME_MAX

FILENAME_MAX is the same as PATH_MAX (4kb) in glibc rather than
NAME_MAX's 255. Switch to using NAME_MAX and ensure the '\0' is
accounted for in the path's buffer size.

Fixes: 754baf426e09 ("perf pmu: Change aliases from list to hashmap")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250717150855.1032526-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index b09b2ea2407a..f3da6e27bfcb 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -453,7 +453,7 @@ static struct perf_pmu_alias *perf_pmu__find_alias(struct perf_pmu *pmu,
 {
 	struct perf_pmu_alias *alias;
 	bool has_sysfs_event;
-	char event_file_name[FILENAME_MAX + 8];
+	char event_file_name[NAME_MAX + 8];
 
 	if (hashmap__find(pmu->aliases, name, &alias))
 		return alias;
@@ -752,7 +752,7 @@ static int pmu_aliases_parse(struct perf_pmu *pmu)
 
 static int pmu_aliases_parse_eager(struct perf_pmu *pmu, int sysfs_fd)
 {
-	char path[FILENAME_MAX + 7];
+	char path[NAME_MAX + 8];
 	int ret, events_dir_fd;
 
 	scnprintf(path, sizeof(path), "%s/events", pmu->name);

From 008b75759eb98fa6ee83eae8e9e19722121de633 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 17 Jul 2025 08:08:55 -0700
Subject: [PATCH 129/179] perf ui scripts: Switch FILENAME_MAX to NAME_MAX

FILENAME_MAX is the same as PATH_MAX (4kb) in glibc rather than
NAME_MAX's 255. Switch to using NAME_MAX and ensure the '\0' is
accounted for in the path's buffer size.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250717150855.1032526-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/ui/browsers/scripts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
index 2d04ece833aa..1e8c2c2f952d 100644
--- a/tools/perf/ui/browsers/scripts.c
+++ b/tools/perf/ui/browsers/scripts.c
@@ -94,7 +94,7 @@ static int check_ev_match(int dir_fd, const char *scriptname, struct perf_sessio
 	FILE *fp;
 
 	{
-		char filename[FILENAME_MAX + 5];
+		char filename[NAME_MAX + 5];
 		int fd;
 
 		scnprintf(filename, sizeof(filename), "bin/%s-record", scriptname);

From db12d7ec6bdfdac39850198cc97a797b2c4dcda6 Mon Sep 17 00:00:00 2001
From: Yang Li <yang.lee@linux.alibaba.com>
Date: Wed, 23 Jul 2025 15:04:18 +0800
Subject: [PATCH 130/179] perf stat: Remove duplicated include in stat-shadow.c

The header files rblist.h is included twice in stat-shadow.c,
so one inclusion of each can be removed.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=22933
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250723070418.2195172-1-yang.lee@linux.alibaba.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/stat-shadow.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 2b4950f56fae..abaf6b579bfc 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -15,7 +15,6 @@
 #include <linux/zalloc.h>
 #include "iostat.h"
 #include "util/hashmap.h"
-#include "rblist.h"
 #include "tool_pmu.h"
 
 struct stats walltime_nsecs_stats;

From 12d30725bf997ffd5baa849d4b20be86105fc070 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Mon, 21 Jul 2025 18:34:49 -0700
Subject: [PATCH 131/179] perf pfm: Don't force loading of all PMUs

Force loading all PMUs adds significant cost because DRM and other
PMUs are loaded, it should also not be required if the pmus__
functions are used.

Tested by run perf test, in particular the pfm related tests. Also
`perf list` is identical before and after.

Before:
  $ time ./perf test pfm
   54: Test libpfm4 support                                            :
   54.1: test of individual --pfm-events                               : Ok
   54.2: test groups of --pfm-events                                   : Ok
  103: perf all libpfm4 events test                                    : Ok

  real	0m8.933s
  user	0m1.824s
  sys	0m7.122s

After:
  $ time ./perf test pfm
   54: Test libpfm4 support                                            :
   54.1: test of individual --pfm-events                               : Ok
   54.2: test groups of --pfm-events                                   : Ok
  103: perf all libpfm4 events test                                    : Ok

  real	0m5.259s
  user	0m1.793s
  sys	0m3.570s

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250722013449.146233-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pfm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/tools/perf/util/pfm.c b/tools/perf/util/pfm.c
index 0dacc133ed39..e89395814e88 100644
--- a/tools/perf/util/pfm.c
+++ b/tools/perf/util/pfm.c
@@ -47,10 +47,6 @@ int parse_libpfm_events_option(const struct option *opt, const char *str,
 	p_orig = p = strdup(str);
 	if (!p)
 		return -1;
-	/*
-	 * force loading of the PMU list
-	 */
-	perf_pmus__scan(NULL);
 
 	for (q = p; strsep(&p, ",{}"); q = p) {
 		sep = p ? str + (p - p_orig - 1) : "";

From 62f4512238f5541d864a783cbcd8d95d067a17b3 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:03 -0700
Subject: [PATCH 132/179] perf parse-events: Warn if a cpu term is unsupported
 by a CPU

Factor requested CPU warning out of evlist and into evsel. At the end
of adding an event, perform the warning check. To avoid repeatedly
testing if the cpu_list is empty, add a local variable.

```
$ perf stat -e cpu_atom/cycles,cpu=1/ -a true
WARNING: A requested CPU in '1' is not supported by PMU 'cpu_atom' (CPUs 16-27) for event 'cpu_atom/cycles/'

 Performance counter stats for 'system wide':

   <not supported>      cpu_atom/cycles/

       0.000781511 seconds time elapsed
```

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/evlist.c       | 15 +--------------
 tools/perf/util/evsel.c        | 24 ++++++++++++++++++++++++
 tools/perf/util/evsel.h        |  2 ++
 tools/perf/util/parse-events.c | 12 ++++++++----
 4 files changed, 35 insertions(+), 18 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 995ad5f654d0..80d8387e6b97 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -2549,20 +2549,7 @@ void evlist__warn_user_requested_cpus(struct evlist *evlist, const char *cpu_lis
 		return;
 
 	evlist__for_each_entry(evlist, pos) {
-		struct perf_cpu_map *intersect, *to_test, *online = cpu_map__online();
-		const struct perf_pmu *pmu = evsel__find_pmu(pos);
-
-		to_test = pmu && pmu->is_core ? pmu->cpus : online;
-		intersect = perf_cpu_map__intersect(to_test, user_requested_cpus);
-		if (!perf_cpu_map__equal(intersect, user_requested_cpus)) {
-			char buf[128];
-
-			cpu_map__snprint(to_test, buf, sizeof(buf));
-			pr_warning("WARNING: A requested CPU in '%s' is not supported by PMU '%s' (CPUs %s) for event '%s'\n",
-				cpu_list, pmu ? pmu->name : "cpu", buf, evsel__name(pos));
-		}
-		perf_cpu_map__put(intersect);
-		perf_cpu_map__put(online);
+		evsel__warn_user_requested_cpus(pos, user_requested_cpus);
 	}
 	perf_cpu_map__put(user_requested_cpus);
 }
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3896a04d90af..d9b6bf78d67b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -4091,3 +4091,27 @@ void evsel__uniquify_counter(struct evsel *counter)
 		counter->uniquified_name = false;
 	}
 }
+
+void evsel__warn_user_requested_cpus(struct evsel *evsel, struct perf_cpu_map *user_requested_cpus)
+{
+	struct perf_cpu_map *intersect, *online = NULL;
+	const struct perf_pmu *pmu = evsel__find_pmu(evsel);
+
+	if (pmu && pmu->is_core) {
+		intersect = perf_cpu_map__intersect(pmu->cpus, user_requested_cpus);
+	} else {
+		online = cpu_map__online();
+		intersect = perf_cpu_map__intersect(online, user_requested_cpus);
+	}
+	if (!perf_cpu_map__equal(intersect, user_requested_cpus)) {
+		char buf1[128];
+		char buf2[128];
+
+		cpu_map__snprint(user_requested_cpus, buf1, sizeof(buf1));
+		cpu_map__snprint(online ?: pmu->cpus, buf2, sizeof(buf2));
+		pr_warning("WARNING: A requested CPU in '%s' is not supported by PMU '%s' (CPUs %s) for event '%s'\n",
+			   buf1, pmu ? pmu->name : "cpu", buf2, evsel__name(evsel));
+	}
+	perf_cpu_map__put(intersect);
+	perf_cpu_map__put(online);
+}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index b84ee274602d..cefa8e64c0d5 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -574,4 +574,6 @@ void evsel__set_config_if_unset(struct perf_pmu *pmu, struct evsel *evsel,
 
 bool evsel__is_offcpu_event(struct evsel *evsel);
 
+void evsel__warn_user_requested_cpus(struct evsel *evsel, struct perf_cpu_map *user_requested_cpus);
+
 #endif /* __PERF_EVSEL_H */
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a59ae5ca0f89..3fd6cc0c2794 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -252,6 +252,7 @@ __add_event(struct list_head *list, int *idx,
 	struct evsel *evsel;
 	bool is_pmu_core;
 	struct perf_cpu_map *cpus;
+	bool has_cpu_list = !perf_cpu_map__is_empty(cpu_list);
 
 	/*
 	 * Ensure the first_wildcard_match's PMU matches that of the new event
@@ -276,7 +277,7 @@ __add_event(struct list_head *list, int *idx,
 
 	if (pmu) {
 		is_pmu_core = pmu->is_core;
-		cpus = perf_cpu_map__get(perf_cpu_map__is_empty(cpu_list) ? pmu->cpus : cpu_list);
+		cpus = perf_cpu_map__get(has_cpu_list ? cpu_list : pmu->cpus);
 		perf_pmu__warn_invalid_formats(pmu);
 		if (attr->type == PERF_TYPE_RAW || attr->type >= PERF_TYPE_MAX) {
 			perf_pmu__warn_invalid_config(pmu, attr->config, name,
@@ -291,10 +292,10 @@ __add_event(struct list_head *list, int *idx,
 	} else {
 		is_pmu_core = (attr->type == PERF_TYPE_HARDWARE ||
 			       attr->type == PERF_TYPE_HW_CACHE);
-		if (perf_cpu_map__is_empty(cpu_list))
-			cpus = is_pmu_core ? perf_cpu_map__new_online_cpus() : NULL;
-		else
+		if (has_cpu_list)
 			cpus = perf_cpu_map__get(cpu_list);
+		else
+			cpus = is_pmu_core ? cpu_map__online() : NULL;
 	}
 	if (init_attr)
 		event_attr_init(attr);
@@ -326,6 +327,9 @@ __add_event(struct list_head *list, int *idx,
 	if (list)
 		list_add_tail(&evsel->core.node, list);
 
+	if (has_cpu_list)
+		evsel__warn_user_requested_cpus(evsel, cpu_list);
+
 	return evsel;
 }
 

From 848e7a06fea9be249c5b788b3f498196925e4d7e Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:04 -0700
Subject: [PATCH 133/179] perf stat: Avoid buffer overflow to the aggregation
 map

CPUs may be created and passed to perf_stat__get_aggr (via
config->aggr_get_id), such as in the stat display
should_skip_zero_counter. There may be no such aggr_id, for example,
if running with a thread. Add a missing bound check and just create
IDs for these cases.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-stat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 77e2248fa7fc..73b4521ab8af 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1365,7 +1365,7 @@ static struct aggr_cpu_id perf_stat__get_aggr(struct perf_stat_config *config,
 	struct aggr_cpu_id id;
 
 	/* per-process mode - should use global aggr mode */
-	if (cpu.cpu == -1)
+	if (cpu.cpu == -1 || cpu.cpu >= config->cpus_aggr_map->nr)
 		return get_id(config, cpu);
 
 	if (aggr_cpu_id__is_empty(&config->cpus_aggr_map->map[cpu.cpu]))

From ced4c249569ab25c32b0d36e2ebdb19c74394bdf Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:05 -0700
Subject: [PATCH 134/179] perf stat: Don't size aggregation ids from
 user_requested_cpus

As evsels may have additional CPU terms, the user_requested_cpus may
not reflect all the CPUs requested. Use evlist->all_cpus to size the
array as that reflects all the CPUs potentially needed by the evlist.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-stat.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 73b4521ab8af..00fce828cd5e 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1513,11 +1513,8 @@ static int perf_stat_init_aggr_mode(void)
 	 * taking the highest cpu number to be the size of
 	 * the aggregation translate cpumap.
 	 */
-	if (!perf_cpu_map__is_any_cpu_or_is_empty(evsel_list->core.user_requested_cpus))
-		nr = perf_cpu_map__max(evsel_list->core.user_requested_cpus).cpu;
-	else
-		nr = 0;
-	stat_config.cpus_aggr_map = cpu_aggr_map__empty_new(nr + 1);
+	nr = perf_cpu_map__max(evsel_list->core.all_cpus).cpu + 1;
+	stat_config.cpus_aggr_map = cpu_aggr_map__empty_new(nr);
 	return stat_config.cpus_aggr_map ? 0 : -ENOMEM;
 }
 

From bd741d80dc65922c7d6e5fd855a934f5d2cf2309 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:06 -0700
Subject: [PATCH 135/179] perf parse-events: Allow the cpu term to be a PMU or
 CPU range

On hybrid systems, events like msr/tsc/ will aggregate counts across
all CPUs. Often metrics only want a value like msr/tsc/ for the cores
on which the metric is being computed. Listing each CPU with terms
cpu=0,cpu=1.. is laborious and would need to be encoded for all
variations of a CPU model.

Allow the cpumask from a PMU to be an argument to the cpu term. For
example in the following the cpumask of the cstate_pkg PMU selects the
CPUs to count msr/tsc/ counter upon:
```
$ cat /sys/bus/event_source/devices/cstate_pkg/cpumask
0
$ perf stat -A -e 'msr/tsc,cpu=cstate_pkg/' -a sleep 0.1

 Performance counter stats for 'system wide':

CPU0          252,621,253      msr/tsc,cpu=cstate_pkg/

       0.101184092 seconds time elapsed
```

As the cpu term is now also allowed to be a string, allow it to encode
a range of CPUs (a list can't be supported as ',' is already a special
token).

The "event qualifiers" section of the `perf list` man page is updated
to detail the additional behavior.  The man page formatting is tidied
up in this section, as it was incorrectly appearing within the
"parameterized events" section.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250719030517.1990983-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-list.txt | 25 ++++++++------
 tools/perf/util/parse-events.c         | 45 +++++++++++++++++++++-----
 2 files changed, 53 insertions(+), 17 deletions(-)

diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index ce0735021473..28215306a78a 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -278,26 +278,33 @@ also be supplied. For example:
 
   perf stat -C 0 -e 'hv_gpci/dtbp_ptitc,phys_processor_idx=0x2/' ...
 
-EVENT QUALIFIERS:
+EVENT QUALIFIERS
+----------------
 
 It is also possible to add extra qualifiers to an event:
 
 percore:
 
-Sums up the event counts for all hardware threads in a core, e.g.:
-
-
-  perf stat -e cpu/event=0,umask=0x3,percore=1/
+  Sums up the event counts for all hardware threads in a core, e.g.:
+    perf stat -e cpu/event=0,umask=0x3,percore=1/
 
 cpu:
 
-Specifies the CPU to open the event upon. The value may be repeated to
-specify opening the event on multiple CPUs:
+  Specifies a CPU or a range of CPUs to open the event upon. It may
+  also reference a PMU to copy the CPU mask from. The value may be
+  repeated to specify opening the event on multiple CPUs.
 
+  Example 1: to open the instructions event on CPUs 0 and 2, the
+  cycles event on CPUs 1 and 2:
+    perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1-2/ -a sleep 1
 
-  perf stat -e instructions/cpu=0,cpu=2/,cycles/cpu=1,cpu=2/ -a sleep 1
-  perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
+  Example 2: to open the data_read uncore event on CPU 0 and the
+  data_write uncore event on CPU 1:
+    perf stat -e data_read/cpu=0/,data_write/cpu=1/ -a sleep 1
 
+  Example 3: to open the software msr/tsc/ event only on the CPUs
+  matching those from the cpu_core PMU:
+    perf stat -e msr/tsc,cpu=cpu_core/ -a sleep 1
 
 EVENT GROUPS
 ------------
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 3fd6cc0c2794..a337e4d22ff2 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -187,10 +187,22 @@ static struct perf_cpu_map *get_config_cpu(const struct parse_events_terms *head
 
 	list_for_each_entry(term, &head_terms->terms, list) {
 		if (term->type_term == PARSE_EVENTS__TERM_TYPE_CPU) {
-			struct perf_cpu_map *cpu = perf_cpu_map__new_int(term->val.num);
+			struct perf_cpu_map *term_cpus;
 
-			perf_cpu_map__merge(&cpus, cpu);
-			perf_cpu_map__put(cpu);
+			if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
+				term_cpus = perf_cpu_map__new_int(term->val.num);
+			} else {
+				struct perf_pmu *pmu = perf_pmus__find(term->val.str);
+
+				if (pmu && perf_cpu_map__is_empty(pmu->cpus))
+					term_cpus = pmu->is_core ? cpu_map__online() : NULL;
+				else if (pmu)
+					term_cpus = perf_cpu_map__get(pmu->cpus);
+				else
+					term_cpus = perf_cpu_map__new(term->val.str);
+			}
+			perf_cpu_map__merge(&cpus, term_cpus);
+			perf_cpu_map__put(term_cpus);
 		}
 	}
 
@@ -1048,15 +1060,32 @@ do {									   \
 			return -EINVAL;
 		}
 		break;
-	case PARSE_EVENTS__TERM_TYPE_CPU:
-		CHECK_TYPE_VAL(NUM);
-		if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
+	case PARSE_EVENTS__TERM_TYPE_CPU: {
+		struct perf_cpu_map *map;
+
+		if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
+			if (term->val.num >= (u64)cpu__max_present_cpu().cpu) {
+				parse_events_error__handle(err, term->err_val,
+							strdup("too big"),
+							/*help=*/NULL);
+				return -EINVAL;
+			}
+			break;
+		}
+		assert(term->type_val == PARSE_EVENTS__TERM_TYPE_STR);
+		if (perf_pmus__find(term->val.str) != NULL)
+			break;
+
+		map = perf_cpu_map__new(term->val.str);
+		if (!map) {
 			parse_events_error__handle(err, term->err_val,
-						strdup("too big"),
-						NULL);
+						   strdup("not a valid PMU or CPU number"),
+						   /*help=*/NULL);
 			return -EINVAL;
 		}
+		perf_cpu_map__put(map);
 		break;
+	}
 	case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
 	case PARSE_EVENTS__TERM_TYPE_USER:
 	case PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE:

From 175c852325a1f566426e2470e5d5d67efc7621dd Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:07 -0700
Subject: [PATCH 136/179] perf tool_pmu: Allow num_cpus(_online) to be specific
 to a cpumask

For hybrid metrics it is useful to know the number of p-core or e-core
CPUs. If a cpumask is specified for the num_cpus or num_cpus_online
tool events, compute the value relative to the given mask rather than
for the full system.

```
$ sudo /tmp/perf/perf stat -e 'tool/num_cpus/,tool/num_cpus,cpu=cpu_core/,
  tool/num_cpus,cpu=cpu_atom/,tool/num_cpus_online/,tool/num_cpus_online,
  cpu=cpu_core/,tool/num_cpus_online,cpu=cpu_atom/' true

 Performance counter stats for 'true':

                28      tool/num_cpus/
                16      tool/num_cpus,cpu=cpu_core/
                12      tool/num_cpus,cpu=cpu_atom/
                28      tool/num_cpus_online/
                16      tool/num_cpus_online,cpu=cpu_core/
                12      tool/num_cpus_online,cpu=cpu_atom/

       0.000767205 seconds time elapsed

       0.000938000 seconds user
       0.000000000 seconds sys
```

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/expr.c     |  2 +-
 tools/perf/util/tool_pmu.c | 56 +++++++++++++++++++++++++++++++++-----
 tools/perf/util/tool_pmu.h |  2 +-
 3 files changed, 51 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index ca70a14c7cdf..7fda0ff89c16 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -401,7 +401,7 @@ double expr__get_literal(const char *literal, const struct expr_scanner_ctx *ctx
 	if (ev != TOOL_PMU__EVENT_NONE) {
 		u64 count;
 
-		if (tool_pmu__read_event(ev, &count))
+		if (tool_pmu__read_event(ev, /*evsel=*/NULL, &count))
 			result = count;
 		else
 			pr_err("Failure to read '%s'", literal);
diff --git a/tools/perf/util/tool_pmu.c b/tools/perf/util/tool_pmu.c
index 4630b8cc8e52..7aa4f315b0ac 100644
--- a/tools/perf/util/tool_pmu.c
+++ b/tools/perf/util/tool_pmu.c
@@ -332,7 +332,7 @@ static bool has_pmem(void)
 	return has_pmem;
 }
 
-bool tool_pmu__read_event(enum tool_pmu_event ev, u64 *result)
+bool tool_pmu__read_event(enum tool_pmu_event ev, struct evsel *evsel, u64 *result)
 {
 	const struct cpu_topology *topology;
 
@@ -347,18 +347,60 @@ bool tool_pmu__read_event(enum tool_pmu_event ev, u64 *result)
 		return true;
 
 	case TOOL_PMU__EVENT_NUM_CPUS:
-		*result = cpu__max_present_cpu().cpu;
+		if (!evsel || perf_cpu_map__is_empty(evsel->core.cpus)) {
+			/* No evsel to be specific to. */
+			*result = cpu__max_present_cpu().cpu;
+		} else if (!perf_cpu_map__has_any_cpu(evsel->core.cpus)) {
+			/* Evsel just has specific CPUs. */
+			*result = perf_cpu_map__nr(evsel->core.cpus);
+		} else {
+			/*
+			 * "Any CPU" event that can be scheduled on any CPU in
+			 * the PMU's cpumask. The PMU cpumask should be saved in
+			 * own_cpus. If not present fall back to max.
+			 */
+			if (!perf_cpu_map__is_empty(evsel->core.own_cpus))
+				*result = perf_cpu_map__nr(evsel->core.own_cpus);
+			else
+				*result = cpu__max_present_cpu().cpu;
+		}
 		return true;
 
 	case TOOL_PMU__EVENT_NUM_CPUS_ONLINE: {
 		struct perf_cpu_map *online = cpu_map__online();
 
-		if (online) {
+		if (!online)
+			return false;
+
+		if (!evsel || perf_cpu_map__is_empty(evsel->core.cpus)) {
+			/* No evsel to be specific to. */
 			*result = perf_cpu_map__nr(online);
-			perf_cpu_map__put(online);
-			return true;
+		} else if (!perf_cpu_map__has_any_cpu(evsel->core.cpus)) {
+			/* Evsel just has specific CPUs. */
+			struct perf_cpu_map *tmp =
+				perf_cpu_map__intersect(online, evsel->core.cpus);
+
+			*result = perf_cpu_map__nr(tmp);
+			perf_cpu_map__put(tmp);
+		} else {
+			/*
+			 * "Any CPU" event that can be scheduled on any CPU in
+			 * the PMU's cpumask. The PMU cpumask should be saved in
+			 * own_cpus, if not present then just the online cpu
+			 * mask.
+			 */
+			if (!perf_cpu_map__is_empty(evsel->core.own_cpus)) {
+				struct perf_cpu_map *tmp =
+					perf_cpu_map__intersect(online, evsel->core.own_cpus);
+
+				*result = perf_cpu_map__nr(tmp);
+				perf_cpu_map__put(tmp);
+			} else {
+				*result = perf_cpu_map__nr(online);
+			}
 		}
-		return false;
+		perf_cpu_map__put(online);
+		return true;
 	}
 	case TOOL_PMU__EVENT_NUM_DIES:
 		topology = online_topology();
@@ -417,7 +459,7 @@ int evsel__tool_pmu_read(struct evsel *evsel, int cpu_map_idx, int thread)
 			old_count = perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread);
 		val = 0;
 		if (cpu_map_idx == 0 && thread == 0) {
-			if (!tool_pmu__read_event(ev, &val)) {
+			if (!tool_pmu__read_event(ev, evsel, &val)) {
 				count->lost++;
 				val = 0;
 			}
diff --git a/tools/perf/util/tool_pmu.h b/tools/perf/util/tool_pmu.h
index c6ad1dd90a56..d642e7d73910 100644
--- a/tools/perf/util/tool_pmu.h
+++ b/tools/perf/util/tool_pmu.h
@@ -34,7 +34,7 @@ enum tool_pmu_event tool_pmu__str_to_event(const char *str);
 bool tool_pmu__skip_event(const char *name);
 int tool_pmu__num_skip_events(void);
 
-bool tool_pmu__read_event(enum tool_pmu_event ev, u64 *result);
+bool tool_pmu__read_event(enum tool_pmu_event ev, struct evsel *evsel, u64 *result);
 
 u64 tool_pmu__cpu_slots_per_cycle(void);
 

From 6d765f5f7ec669f2a16b44afd23cd877efa640de Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:08 -0700
Subject: [PATCH 137/179] libperf evsel: Rename own_cpus to pmu_cpus

own_cpus is generally the cpumask from the PMU. Rename to pmu_cpus to
try to make this clearer. Variable rename with no other changes.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/perf/evlist.c                 |  8 ++++----
 tools/lib/perf/evsel.c                  |  2 +-
 tools/lib/perf/include/internal/evsel.h |  2 +-
 tools/perf/tests/event_update.c         |  4 ++--
 tools/perf/util/evsel.c                 |  6 +++---
 tools/perf/util/header.c                |  4 ++--
 tools/perf/util/parse-events.c          |  2 +-
 tools/perf/util/synthetic-events.c      |  4 ++--
 tools/perf/util/tool_pmu.c              | 12 ++++++------
 9 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c
index b1f4c8176b32..9d9dec21f510 100644
--- a/tools/lib/perf/evlist.c
+++ b/tools/lib/perf/evlist.c
@@ -46,7 +46,7 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
 		 * are valid by intersecting with those of the PMU.
 		 */
 		perf_cpu_map__put(evsel->cpus);
-		evsel->cpus = perf_cpu_map__intersect(evlist->user_requested_cpus, evsel->own_cpus);
+		evsel->cpus = perf_cpu_map__intersect(evlist->user_requested_cpus, evsel->pmu_cpus);
 
 		/*
 		 * Empty cpu lists would eventually get opened as "any" so remove
@@ -61,7 +61,7 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
 				list_for_each_entry_from(next, &evlist->entries, node)
 					next->idx--;
 		}
-	} else if (!evsel->own_cpus || evlist->has_user_cpus ||
+	} else if (!evsel->pmu_cpus || evlist->has_user_cpus ||
 		(!evsel->requires_cpu && perf_cpu_map__has_any_cpu(evlist->user_requested_cpus))) {
 		/*
 		 * The PMU didn't specify a default cpu map, this isn't a core
@@ -72,13 +72,13 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
 		 */
 		perf_cpu_map__put(evsel->cpus);
 		evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
-	} else if (evsel->cpus != evsel->own_cpus) {
+	} else if (evsel->cpus != evsel->pmu_cpus) {
 		/*
 		 * No user requested cpu map but the PMU cpu map doesn't match
 		 * the evsel's. Reset it back to the PMU cpu map.
 		 */
 		perf_cpu_map__put(evsel->cpus);
-		evsel->cpus = perf_cpu_map__get(evsel->own_cpus);
+		evsel->cpus = perf_cpu_map__get(evsel->pmu_cpus);
 	}
 
 	if (evsel->system_wide) {
diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
index 2a85e0bfee1e..127abe7df63d 100644
--- a/tools/lib/perf/evsel.c
+++ b/tools/lib/perf/evsel.c
@@ -46,7 +46,7 @@ void perf_evsel__delete(struct perf_evsel *evsel)
 	assert(evsel->mmap == NULL); /* If not munmap wasn't called. */
 	assert(evsel->sample_id == NULL); /* If not free_id wasn't called. */
 	perf_cpu_map__put(evsel->cpus);
-	perf_cpu_map__put(evsel->own_cpus);
+	perf_cpu_map__put(evsel->pmu_cpus);
 	perf_thread_map__put(evsel->threads);
 	free(evsel);
 }
diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h
index ea78defa77d0..b97dc8c92882 100644
--- a/tools/lib/perf/include/internal/evsel.h
+++ b/tools/lib/perf/include/internal/evsel.h
@@ -99,7 +99,7 @@ struct perf_evsel {
 	 * cpu map for opening the event on, for example, the first CPU on a
 	 * socket for an uncore event.
 	 */
-	struct perf_cpu_map	*own_cpus;
+	struct perf_cpu_map	*pmu_cpus;
 	struct perf_thread_map	*threads;
 	struct xyarray		*fd;
 	struct xyarray		*mmap;
diff --git a/tools/perf/tests/event_update.c b/tools/perf/tests/event_update.c
index 9301fde11366..cb9e6de2e033 100644
--- a/tools/perf/tests/event_update.c
+++ b/tools/perf/tests/event_update.c
@@ -109,8 +109,8 @@ static int test__event_update(struct test_suite *test __maybe_unused, int subtes
 	TEST_ASSERT_VAL("failed to synthesize attr update name",
 			!perf_event__synthesize_event_update_name(&tmp.tool, evsel, process_event_name));
 
-	perf_cpu_map__put(evsel->core.own_cpus);
-	evsel->core.own_cpus = perf_cpu_map__new("1,2,3");
+	perf_cpu_map__put(evsel->core.pmu_cpus);
+	evsel->core.pmu_cpus = perf_cpu_map__new("1,2,3");
 
 	TEST_ASSERT_VAL("failed to synthesize attr update cpus",
 			!perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus));
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index d9b6bf78d67b..ba0c9799928b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -488,7 +488,7 @@ struct evsel *evsel__clone(struct evsel *dest, struct evsel *orig)
 		return NULL;
 
 	evsel->core.cpus = perf_cpu_map__get(orig->core.cpus);
-	evsel->core.own_cpus = perf_cpu_map__get(orig->core.own_cpus);
+	evsel->core.pmu_cpus = perf_cpu_map__get(orig->core.pmu_cpus);
 	evsel->core.threads = perf_thread_map__get(orig->core.threads);
 	evsel->core.nr_members = orig->core.nr_members;
 	evsel->core.system_wide = orig->core.system_wide;
@@ -1527,7 +1527,7 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts,
 		attr->exclude_user   = 1;
 	}
 
-	if (evsel->core.own_cpus || evsel->unit)
+	if (evsel->core.pmu_cpus || evsel->unit)
 		evsel->core.attr.read_format |= PERF_FORMAT_ID;
 
 	/*
@@ -1680,7 +1680,7 @@ void evsel__exit(struct evsel *evsel)
 	evsel__free_config_terms(evsel);
 	cgroup__put(evsel->cgrp);
 	perf_cpu_map__put(evsel->core.cpus);
-	perf_cpu_map__put(evsel->core.own_cpus);
+	perf_cpu_map__put(evsel->core.pmu_cpus);
 	perf_thread_map__put(evsel->core.threads);
 	zfree(&evsel->group_name);
 	zfree(&evsel->name);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 53d54fbda10d..d941d7aa0f49 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -4507,8 +4507,8 @@ int perf_event__process_event_update(const struct perf_tool *tool __maybe_unused
 	case PERF_EVENT_UPDATE__CPUS:
 		map = cpu_map__new_data(&ev->cpus.cpus);
 		if (map) {
-			perf_cpu_map__put(evsel->core.own_cpus);
-			evsel->core.own_cpus = map;
+			perf_cpu_map__put(evsel->core.pmu_cpus);
+			evsel->core.pmu_cpus = map;
 		} else
 			pr_err("failed to get event_update cpus\n");
 	default:
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a337e4d22ff2..d506f9943506 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -320,7 +320,7 @@ __add_event(struct list_head *list, int *idx,
 
 	(*idx)++;
 	evsel->core.cpus = cpus;
-	evsel->core.own_cpus = perf_cpu_map__get(cpus);
+	evsel->core.pmu_cpus = perf_cpu_map__get(cpus);
 	evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
 	evsel->core.is_pmu_core = is_pmu_core;
 	evsel->pmu = pmu;
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index 2fc4d0537840..7c00b09e3a93 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -2045,7 +2045,7 @@ int perf_event__synthesize_event_update_name(const struct perf_tool *tool, struc
 int perf_event__synthesize_event_update_cpus(const struct perf_tool *tool, struct evsel *evsel,
 					     perf_event__handler_t process)
 {
-	struct synthesize_cpu_map_data syn_data = { .map = evsel->core.own_cpus };
+	struct synthesize_cpu_map_data syn_data = { .map = evsel->core.pmu_cpus };
 	struct perf_record_event_update *ev;
 	int err;
 
@@ -2126,7 +2126,7 @@ int perf_event__synthesize_extra_attr(const struct perf_tool *tool, struct evlis
 			}
 		}
 
-		if (evsel->core.own_cpus) {
+		if (evsel->core.pmu_cpus) {
 			err = perf_event__synthesize_event_update_cpus(tool, evsel, process);
 			if (err < 0) {
 				pr_err("Couldn't synthesize evsel cpus.\n");
diff --git a/tools/perf/util/tool_pmu.c b/tools/perf/util/tool_pmu.c
index 7aa4f315b0ac..d99e699e646d 100644
--- a/tools/perf/util/tool_pmu.c
+++ b/tools/perf/util/tool_pmu.c
@@ -357,10 +357,10 @@ bool tool_pmu__read_event(enum tool_pmu_event ev, struct evsel *evsel, u64 *resu
 			/*
 			 * "Any CPU" event that can be scheduled on any CPU in
 			 * the PMU's cpumask. The PMU cpumask should be saved in
-			 * own_cpus. If not present fall back to max.
+			 * pmu_cpus. If not present fall back to max.
 			 */
-			if (!perf_cpu_map__is_empty(evsel->core.own_cpus))
-				*result = perf_cpu_map__nr(evsel->core.own_cpus);
+			if (!perf_cpu_map__is_empty(evsel->core.pmu_cpus))
+				*result = perf_cpu_map__nr(evsel->core.pmu_cpus);
 			else
 				*result = cpu__max_present_cpu().cpu;
 		}
@@ -386,12 +386,12 @@ bool tool_pmu__read_event(enum tool_pmu_event ev, struct evsel *evsel, u64 *resu
 			/*
 			 * "Any CPU" event that can be scheduled on any CPU in
 			 * the PMU's cpumask. The PMU cpumask should be saved in
-			 * own_cpus, if not present then just the online cpu
+			 * pmu_cpus, if not present then just the online cpu
 			 * mask.
 			 */
-			if (!perf_cpu_map__is_empty(evsel->core.own_cpus)) {
+			if (!perf_cpu_map__is_empty(evsel->core.pmu_cpus)) {
 				struct perf_cpu_map *tmp =
-					perf_cpu_map__intersect(online, evsel->core.own_cpus);
+					perf_cpu_map__intersect(online, evsel->core.pmu_cpus);
 
 				*result = perf_cpu_map__nr(tmp);
 				perf_cpu_map__put(tmp);

From 9a711ef3bd57c124cb7255a4bb8a5166c6b0cef0 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:09 -0700
Subject: [PATCH 138/179] libperf evsel: Factor perf_evsel__exit out of
 perf_evsel__delete

This allows the perf_evsel__exit to be called when the struct
perf_evsel is embedded inside another struct, such as struct evsel in
perf.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/perf/evsel.c                  | 7 ++++++-
 tools/lib/perf/include/internal/evsel.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
index 127abe7df63d..13a307fc75ae 100644
--- a/tools/lib/perf/evsel.c
+++ b/tools/lib/perf/evsel.c
@@ -40,7 +40,7 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
 	return evsel;
 }
 
-void perf_evsel__delete(struct perf_evsel *evsel)
+void perf_evsel__exit(struct perf_evsel *evsel)
 {
 	assert(evsel->fd == NULL);  /* If not fds were not closed. */
 	assert(evsel->mmap == NULL); /* If not munmap wasn't called. */
@@ -48,6 +48,11 @@ void perf_evsel__delete(struct perf_evsel *evsel)
 	perf_cpu_map__put(evsel->cpus);
 	perf_cpu_map__put(evsel->pmu_cpus);
 	perf_thread_map__put(evsel->threads);
+}
+
+void perf_evsel__delete(struct perf_evsel *evsel)
+{
+	perf_evsel__exit(evsel);
 	free(evsel);
 }
 
diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h
index b97dc8c92882..fefe64ba5e26 100644
--- a/tools/lib/perf/include/internal/evsel.h
+++ b/tools/lib/perf/include/internal/evsel.h
@@ -133,6 +133,7 @@ struct perf_evsel {
 
 void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
 		      int idx);
+void perf_evsel__exit(struct perf_evsel *evsel);
 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 void perf_evsel__close_fd(struct perf_evsel *evsel);
 void perf_evsel__free_fd(struct perf_evsel *evsel);

From f958537f185216b2be028ed793508248503bef83 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:10 -0700
Subject: [PATCH 139/179] perf evsel: Use libperf perf_evsel__exit

Avoid the duplicated code and better enable perf_evsel to change.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/evsel.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ba0c9799928b..af2b26c6456a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1679,9 +1679,7 @@ void evsel__exit(struct evsel *evsel)
 	perf_evsel__free_id(&evsel->core);
 	evsel__free_config_terms(evsel);
 	cgroup__put(evsel->cgrp);
-	perf_cpu_map__put(evsel->core.cpus);
-	perf_cpu_map__put(evsel->core.pmu_cpus);
-	perf_thread_map__put(evsel->core.threads);
+	perf_evsel__exit(&evsel->core);
 	zfree(&evsel->group_name);
 	zfree(&evsel->name);
 #ifdef HAVE_LIBTRACEEVENT

From 3cb614a261e43a82acfef437c3242820c1444e2d Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:11 -0700
Subject: [PATCH 140/179] perf pmus: Factor perf_pmus__find_by_attr out of
 evsel__find_pmu

Allow a PMU to be found by a perf_event_attr, useful when creating
evsels.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pmus.c | 29 +++++++++++++++++------------
 tools/perf/util/pmus.h |  2 ++
 2 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index 409b909cfa02..9137bb9036ed 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -814,24 +814,18 @@ bool perf_pmus__supports_extended_type(void)
 	return perf_pmus__do_support_extended_type;
 }
 
-struct perf_pmu *evsel__find_pmu(const struct evsel *evsel)
+struct perf_pmu *perf_pmus__find_by_attr(const struct perf_event_attr *attr)
 {
-	struct perf_pmu *pmu = evsel->pmu;
-	bool legacy_core_type;
+	struct perf_pmu *pmu = perf_pmus__find_by_type(attr->type);
+	u32 type = attr->type;
+	bool legacy_core_type = type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE;
 
-	if (pmu)
-		return pmu;
-
-	pmu = perf_pmus__find_by_type(evsel->core.attr.type);
-	legacy_core_type =
-		evsel->core.attr.type == PERF_TYPE_HARDWARE ||
-		evsel->core.attr.type == PERF_TYPE_HW_CACHE;
 	if (!pmu && legacy_core_type && perf_pmus__supports_extended_type()) {
-		u32 type = evsel->core.attr.config >> PERF_PMU_TYPE_SHIFT;
+		type = attr->config >> PERF_PMU_TYPE_SHIFT;
 
 		pmu = perf_pmus__find_by_type(type);
 	}
-	if (!pmu && (legacy_core_type || evsel->core.attr.type == PERF_TYPE_RAW)) {
+	if (!pmu && (legacy_core_type || type == PERF_TYPE_RAW)) {
 		/*
 		 * For legacy events, if there was no extended type info then
 		 * assume the PMU is the first core PMU.
@@ -842,6 +836,17 @@ struct perf_pmu *evsel__find_pmu(const struct evsel *evsel)
 		 */
 		pmu = perf_pmus__find_core_pmu();
 	}
+	return pmu;
+}
+
+struct perf_pmu *evsel__find_pmu(const struct evsel *evsel)
+{
+	struct perf_pmu *pmu = evsel->pmu;
+
+	if (pmu)
+		return pmu;
+
+	pmu = perf_pmus__find_by_attr(&evsel->core.attr);
 	((struct evsel *)evsel)->pmu = pmu;
 	return pmu;
 }
diff --git a/tools/perf/util/pmus.h b/tools/perf/util/pmus.h
index 86842ee5f539..7cb36863711a 100644
--- a/tools/perf/util/pmus.h
+++ b/tools/perf/util/pmus.h
@@ -5,6 +5,7 @@
 #include <stdbool.h>
 #include <stddef.h>
 
+struct perf_event_attr;
 struct perf_pmu;
 struct print_callbacks;
 
@@ -16,6 +17,7 @@ void perf_pmus__destroy(void);
 
 struct perf_pmu *perf_pmus__find(const char *name);
 struct perf_pmu *perf_pmus__find_by_type(unsigned int type);
+struct perf_pmu *perf_pmus__find_by_attr(const struct perf_event_attr *attr);
 
 struct perf_pmu *perf_pmus__scan(struct perf_pmu *pmu);
 struct perf_pmu *perf_pmus__scan_core(struct perf_pmu *pmu);

From cd63c22168257a0b0b59245394915e2488065f7d Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:12 -0700
Subject: [PATCH 141/179] perf parse-events: Minor __add_event refactoring

Rename cpu_list to user_cpus. If a PMU isn't given, find it early from
the perf_event_attr. Make the pmu_cpus more explicitly a copy from the
PMU (except when user_cpus are given). Derive the cpus from pmu_cpus
and user_cpus as appropriate. Handle strdup errors on name and
metric_id.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/parse-events.c | 69 +++++++++++++++++++++++-----------
 1 file changed, 48 insertions(+), 21 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index d506f9943506..bd2d831d5123 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -259,12 +259,12 @@ __add_event(struct list_head *list, int *idx,
 	    bool init_attr,
 	    const char *name, const char *metric_id, struct perf_pmu *pmu,
 	    struct list_head *config_terms, struct evsel *first_wildcard_match,
-	    struct perf_cpu_map *cpu_list, u64 alternate_hw_config)
+	    struct perf_cpu_map *user_cpus, u64 alternate_hw_config)
 {
 	struct evsel *evsel;
 	bool is_pmu_core;
-	struct perf_cpu_map *cpus;
-	bool has_cpu_list = !perf_cpu_map__is_empty(cpu_list);
+	struct perf_cpu_map *cpus, *pmu_cpus;
+	bool has_user_cpus = !perf_cpu_map__is_empty(user_cpus);
 
 	/*
 	 * Ensure the first_wildcard_match's PMU matches that of the new event
@@ -288,8 +288,6 @@ __add_event(struct list_head *list, int *idx,
 	}
 
 	if (pmu) {
-		is_pmu_core = pmu->is_core;
-		cpus = perf_cpu_map__get(has_cpu_list ? cpu_list : pmu->cpus);
 		perf_pmu__warn_invalid_formats(pmu);
 		if (attr->type == PERF_TYPE_RAW || attr->type >= PERF_TYPE_MAX) {
 			perf_pmu__warn_invalid_config(pmu, attr->config, name,
@@ -301,48 +299,77 @@ __add_event(struct list_head *list, int *idx,
 			perf_pmu__warn_invalid_config(pmu, attr->config3, name,
 						PERF_PMU_FORMAT_VALUE_CONFIG3, "config3");
 		}
+	}
+	/*
+	 * If a PMU wasn't given, such as for legacy events, find now that
+	 * warnings won't be generated.
+	 */
+	if (!pmu)
+		pmu = perf_pmus__find_by_attr(attr);
+
+	if (pmu) {
+		is_pmu_core = pmu->is_core;
+		pmu_cpus = perf_cpu_map__get(pmu->cpus);
 	} else {
 		is_pmu_core = (attr->type == PERF_TYPE_HARDWARE ||
 			       attr->type == PERF_TYPE_HW_CACHE);
-		if (has_cpu_list)
-			cpus = perf_cpu_map__get(cpu_list);
-		else
-			cpus = is_pmu_core ? cpu_map__online() : NULL;
+		pmu_cpus = is_pmu_core ? cpu_map__online() : NULL;
 	}
+
+	if (has_user_cpus) {
+		cpus = perf_cpu_map__get(user_cpus);
+		/* Existing behavior that pmu_cpus matches the given user ones. */
+		perf_cpu_map__put(pmu_cpus);
+		pmu_cpus = perf_cpu_map__get(user_cpus);
+	} else {
+		cpus = perf_cpu_map__get(pmu_cpus);
+	}
+
 	if (init_attr)
 		event_attr_init(attr);
 
 	evsel = evsel__new_idx(attr, *idx);
-	if (!evsel) {
-		perf_cpu_map__put(cpus);
-		return NULL;
+	if (!evsel)
+		goto out_err;
+
+	if (name) {
+		evsel->name = strdup(name);
+		if (!evsel->name)
+			goto out_err;
+	}
+
+	if (metric_id) {
+		evsel->metric_id = strdup(metric_id);
+		if (!evsel->metric_id)
+			goto out_err;
 	}
 
 	(*idx)++;
 	evsel->core.cpus = cpus;
-	evsel->core.pmu_cpus = perf_cpu_map__get(cpus);
+	evsel->core.pmu_cpus = pmu_cpus;
 	evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
 	evsel->core.is_pmu_core = is_pmu_core;
 	evsel->pmu = pmu;
 	evsel->alternate_hw_config = alternate_hw_config;
 	evsel->first_wildcard_match = first_wildcard_match;
 
-	if (name)
-		evsel->name = strdup(name);
-
-	if (metric_id)
-		evsel->metric_id = strdup(metric_id);
-
 	if (config_terms)
 		list_splice_init(config_terms, &evsel->config_terms);
 
 	if (list)
 		list_add_tail(&evsel->core.node, list);
 
-	if (has_cpu_list)
-		evsel__warn_user_requested_cpus(evsel, cpu_list);
+	if (has_user_cpus)
+		evsel__warn_user_requested_cpus(evsel, user_cpus);
 
 	return evsel;
+out_err:
+	perf_cpu_map__put(cpus);
+	perf_cpu_map__put(pmu_cpus);
+	zfree(&evsel->name);
+	zfree(&evsel->metric_id);
+	free(evsel);
+	return NULL;
 }
 
 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,

From e9387ba56918eb3c16aab3e6f0155a7251e339ec Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:13 -0700
Subject: [PATCH 142/179] perf evsel: Add evsel__open_per_cpu_and_thread

Add evsel__open_per_cpu_and_thread that combines the operation of
evsel__open_per_cpu and evsel__open_per_thread so that an event
without the "any" cpumask can be opened with its cpumask and with
threads it specifies. Change the implementation of evsel__open_per_cpu
and evsel__open_per_thread to use evsel__open_per_cpu_and_thread to
make the implementation of those functions clearer.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250719030517.1990983-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/evsel.c | 23 +++++++++++++++++++----
 tools/perf/util/evsel.h |  3 +++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index af2b26c6456a..ae11df1e7902 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2761,17 +2761,32 @@ void evsel__close(struct evsel *evsel)
 	perf_evsel__free_id(&evsel->core);
 }
 
-int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx)
+int evsel__open_per_cpu_and_thread(struct evsel *evsel,
+				   struct perf_cpu_map *cpus, int cpu_map_idx,
+				   struct perf_thread_map *threads)
 {
 	if (cpu_map_idx == -1)
-		return evsel__open_cpu(evsel, cpus, NULL, 0, perf_cpu_map__nr(cpus));
+		return evsel__open_cpu(evsel, cpus, threads, 0, perf_cpu_map__nr(cpus));
 
-	return evsel__open_cpu(evsel, cpus, NULL, cpu_map_idx, cpu_map_idx + 1);
+	return evsel__open_cpu(evsel, cpus, threads, cpu_map_idx, cpu_map_idx + 1);
+}
+
+int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx)
+{
+	struct perf_thread_map *threads = thread_map__new_by_tid(-1);
+	int ret = evsel__open_per_cpu_and_thread(evsel, cpus, cpu_map_idx, threads);
+
+	perf_thread_map__put(threads);
+	return ret;
 }
 
 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads)
 {
-	return evsel__open(evsel, NULL, threads);
+	struct perf_cpu_map *cpus = perf_cpu_map__new_any_cpu();
+	int ret = evsel__open_per_cpu_and_thread(evsel, cpus, -1, threads);
+
+	perf_cpu_map__put(cpus);
+	return ret;
 }
 
 static int perf_evsel__parse_id_sample(const struct evsel *evsel,
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index cefa8e64c0d5..8e79eb6d41b3 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -351,6 +351,9 @@ int evsel__enable(struct evsel *evsel);
 int evsel__disable(struct evsel *evsel);
 int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx);
 
+int evsel__open_per_cpu_and_thread(struct evsel *evsel,
+				   struct perf_cpu_map *cpus, int cpu_map_idx,
+				   struct perf_thread_map *threads);
 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx);
 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,

From 811082e4b668db9689f8ce927a106036b4ed4e96 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:14 -0700
Subject: [PATCH 143/179] perf parse-events: Support user CPUs mixed with
 threads/processes

Counting events system-wide with a specified CPU prior to this change
worked:
```
$ perf stat -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' -a sleep 1

  Performance counter stats for 'system wide':

     59,393,419,099      msr/tsc/
     33,927,965,927      msr/tsc,cpu=cpu_core/
     25,465,608,044      msr/tsc,cpu=cpu_atom/
```

However, when counting with process the counts became system wide:
```
$ perf stat -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' perf test -F 10
 10.1: Basic parsing test                                            : Ok
 10.2: Parsing without PMU name                                      : Ok
 10.3: Parsing with PMU name                                         : Ok

 Performance counter stats for 'perf test -F 10':

        59,233,549      msr/tsc/
        59,227,556      msr/tsc,cpu=cpu_core/
        59,224,053      msr/tsc,cpu=cpu_atom/
```

Make the handling of CPU maps with event parsing clearer. When an
event is parsed creating an evsel the cpus should be either the PMU's
cpumask or user specified CPUs.

Update perf_evlist__propagate_maps so that it doesn't clobber the user
specified CPUs. Try to make the behavior clearer, firstly fix up
missing cpumasks. Next, perform sanity checks and adjustments from the
global evlist CPU requests and for the PMU including simplifying to
the "any CPU"(-1) value. Finally remove the event if the cpumask is
empty.

So that events are opened with a CPU and a thread change stat's
create_perf_stat_counter to give both.

With the change things are fixed:
```
$ perf stat --no-scale -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' perf test -F 10
 10.1: Basic parsing test                                            : Ok
 10.2: Parsing without PMU name                                      : Ok
 10.3: Parsing with PMU name                                         : Ok

 Performance counter stats for 'perf test -F 10':

        63,704,975      msr/tsc/
        47,060,704      msr/tsc,cpu=cpu_core/                        (4.62%)
        16,640,591      msr/tsc,cpu=cpu_atom/                        (2.18%)
```

However, note the "--no-scale" option is used. This is necessary as
the running time for the event on the counter isn't the same as the
enabled time because the thread doesn't necessarily run on the CPUs
specified for the counter. All counter values are scaled with:

  scaled_value = value * time_enabled / time_running

and so without --no-scale the scaled_value becomes very large. This
problem already exists on hybrid systems for the same reason. Here are
2 runs of the same code with an instructions event that counts the
same on both types of core, there is no real multiplexing happening on
the event:

```
$ perf stat -e instructions perf test -F 10
...
 Performance counter stats for 'perf test -F 10':

        87,896,447      cpu_atom/instructions/                       (14.37%)
        98,171,964      cpu_core/instructions/                       (85.63%)
...
$ perf stat --no-scale -e instructions perf test -F 10
...
 Performance counter stats for 'perf test -F 10':

        13,069,890      cpu_atom/instructions/                       (19.32%)
        83,460,274      cpu_core/instructions/                       (80.68%)
...
```
The scaling has inflated per-PMU instruction counts and the overall
count by 2x.

To fix this the kernel needs changing when a task+CPU event (or just
task event on hybrid) is scheduled out. A fix could be that the state
isn't inactive but off for such events, so that time_enabled counts
don't accumulate on them.

Reviewed-by: Thomas Falcon <thomas.falcon@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250719030517.1990983-13-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/lib/perf/evlist.c        | 123 ++++++++++++++++++++++-----------
 tools/perf/util/parse-events.c |  10 ++-
 tools/perf/util/stat.c         |   6 +-
 3 files changed, 89 insertions(+), 50 deletions(-)

diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c
index 9d9dec21f510..3ed023f4b190 100644
--- a/tools/lib/perf/evlist.c
+++ b/tools/lib/perf/evlist.c
@@ -36,51 +36,90 @@ void perf_evlist__init(struct perf_evlist *evlist)
 static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
 					  struct perf_evsel *evsel)
 {
-	if (evsel->system_wide) {
-		/* System wide: set the cpu map of the evsel to all online CPUs. */
-		perf_cpu_map__put(evsel->cpus);
-		evsel->cpus = perf_cpu_map__new_online_cpus();
-	} else if (evlist->has_user_cpus && evsel->is_pmu_core) {
-		/*
-		 * User requested CPUs on a core PMU, ensure the requested CPUs
-		 * are valid by intersecting with those of the PMU.
-		 */
-		perf_cpu_map__put(evsel->cpus);
-		evsel->cpus = perf_cpu_map__intersect(evlist->user_requested_cpus, evsel->pmu_cpus);
-
-		/*
-		 * Empty cpu lists would eventually get opened as "any" so remove
-		 * genuinely empty ones before they're opened in the wrong place.
-		 */
-		if (perf_cpu_map__is_empty(evsel->cpus)) {
-			struct perf_evsel *next = perf_evlist__next(evlist, evsel);
-
-			perf_evlist__remove(evlist, evsel);
-			/* Keep idx contiguous */
-			if (next)
-				list_for_each_entry_from(next, &evlist->entries, node)
-					next->idx--;
+	if (perf_cpu_map__is_empty(evsel->cpus)) {
+		if (perf_cpu_map__is_empty(evsel->pmu_cpus)) {
+			/*
+			 * Assume the unset PMU cpus were for a system-wide
+			 * event, like a software or tracepoint.
+			 */
+			evsel->pmu_cpus = perf_cpu_map__new_online_cpus();
 		}
-	} else if (!evsel->pmu_cpus || evlist->has_user_cpus ||
-		(!evsel->requires_cpu && perf_cpu_map__has_any_cpu(evlist->user_requested_cpus))) {
-		/*
-		 * The PMU didn't specify a default cpu map, this isn't a core
-		 * event and the user requested CPUs or the evlist user
-		 * requested CPUs have the "any CPU" (aka dummy) CPU value. In
-		 * which case use the user requested CPUs rather than the PMU
-		 * ones.
-		 */
-		perf_cpu_map__put(evsel->cpus);
-		evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
-	} else if (evsel->cpus != evsel->pmu_cpus) {
-		/*
-		 * No user requested cpu map but the PMU cpu map doesn't match
-		 * the evsel's. Reset it back to the PMU cpu map.
-		 */
+		if (evlist->has_user_cpus && !evsel->system_wide) {
+			/*
+			 * Use the user CPUs unless the evsel is set to be
+			 * system wide, such as the dummy event.
+			 */
+			evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
+		} else {
+			/*
+			 * System wide and other modes, assume the cpu map
+			 * should be set to all PMU CPUs.
+			 */
+			evsel->cpus = perf_cpu_map__get(evsel->pmu_cpus);
+		}
+	}
+	/*
+	 * Avoid "any CPU"(-1) for uncore and PMUs that require a CPU, even if
+	 * requested.
+	 */
+	if (evsel->requires_cpu && perf_cpu_map__has_any_cpu(evsel->cpus)) {
 		perf_cpu_map__put(evsel->cpus);
 		evsel->cpus = perf_cpu_map__get(evsel->pmu_cpus);
 	}
 
+	/*
+	 * Globally requested CPUs replace user requested unless the evsel is
+	 * set to be system wide.
+	 */
+	if (evlist->has_user_cpus && !evsel->system_wide) {
+		assert(!perf_cpu_map__has_any_cpu(evlist->user_requested_cpus));
+		if (!perf_cpu_map__equal(evsel->cpus, evlist->user_requested_cpus)) {
+			perf_cpu_map__put(evsel->cpus);
+			evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
+		}
+	}
+
+	/* Ensure cpus only references valid PMU CPUs. */
+	if (!perf_cpu_map__has_any_cpu(evsel->cpus) &&
+	    !perf_cpu_map__is_subset(evsel->pmu_cpus, evsel->cpus)) {
+		struct perf_cpu_map *tmp = perf_cpu_map__intersect(evsel->pmu_cpus, evsel->cpus);
+
+		perf_cpu_map__put(evsel->cpus);
+		evsel->cpus = tmp;
+	}
+
+	/*
+	 * Was event requested on all the PMU's CPUs but the user requested is
+	 * any CPU (-1)? If so switch to using any CPU (-1) to reduce the number
+	 * of events.
+	 */
+	if (!evsel->system_wide &&
+	    !evsel->requires_cpu &&
+	    perf_cpu_map__equal(evsel->cpus, evsel->pmu_cpus) &&
+	    perf_cpu_map__has_any_cpu(evlist->user_requested_cpus)) {
+		perf_cpu_map__put(evsel->cpus);
+		evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus);
+	}
+
+	/* Sanity check assert before the evsel is potentially removed. */
+	assert(!evsel->requires_cpu || !perf_cpu_map__has_any_cpu(evsel->cpus));
+
+	/*
+	 * Empty cpu lists would eventually get opened as "any" so remove
+	 * genuinely empty ones before they're opened in the wrong place.
+	 */
+	if (perf_cpu_map__is_empty(evsel->cpus)) {
+		struct perf_evsel *next = perf_evlist__next(evlist, evsel);
+
+		perf_evlist__remove(evlist, evsel);
+		/* Keep idx contiguous */
+		if (next)
+			list_for_each_entry_from(next, &evlist->entries, node)
+				next->idx--;
+
+		return;
+	}
+
 	if (evsel->system_wide) {
 		perf_thread_map__put(evsel->threads);
 		evsel->threads = perf_thread_map__new_dummy();
@@ -98,6 +137,10 @@ static void perf_evlist__propagate_maps(struct perf_evlist *evlist)
 
 	evlist->needs_map_propagation = true;
 
+	/* Clear the all_cpus set which will be merged into during propagation. */
+	perf_cpu_map__put(evlist->all_cpus);
+	evlist->all_cpus = NULL;
+
 	list_for_each_entry_safe(evsel, n, &evlist->entries, node)
 		__perf_evlist__propagate_maps(evlist, evsel);
 }
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index bd2d831d5123..fe2073c6b549 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -310,20 +310,18 @@ __add_event(struct list_head *list, int *idx,
 	if (pmu) {
 		is_pmu_core = pmu->is_core;
 		pmu_cpus = perf_cpu_map__get(pmu->cpus);
+		if (perf_cpu_map__is_empty(pmu_cpus))
+			pmu_cpus = cpu_map__online();
 	} else {
 		is_pmu_core = (attr->type == PERF_TYPE_HARDWARE ||
 			       attr->type == PERF_TYPE_HW_CACHE);
 		pmu_cpus = is_pmu_core ? cpu_map__online() : NULL;
 	}
 
-	if (has_user_cpus) {
+	if (has_user_cpus)
 		cpus = perf_cpu_map__get(user_cpus);
-		/* Existing behavior that pmu_cpus matches the given user ones. */
-		perf_cpu_map__put(pmu_cpus);
-		pmu_cpus = perf_cpu_map__get(user_cpus);
-	} else {
+	else
 		cpus = perf_cpu_map__get(pmu_cpus);
-	}
 
 	if (init_attr)
 		event_attr_init(attr);
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index b0205e99a4c9..50b1a92d16df 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -769,8 +769,6 @@ int create_perf_stat_counter(struct evsel *evsel,
 			attr->enable_on_exec = 1;
 	}
 
-	if (target__has_cpu(target) && !target__has_per_thread(target))
-		return evsel__open_per_cpu(evsel, evsel__cpus(evsel), cpu_map_idx);
-
-	return evsel__open_per_thread(evsel, evsel->core.threads);
+	return evsel__open_per_cpu_and_thread(evsel, evsel__cpus(evsel), cpu_map_idx,
+					      evsel->core.threads);
 }

From 5b546de9cc177936a3ed07d7d46ef072db4fdbab Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:15 -0700
Subject: [PATCH 144/179] perf topdown: Use attribute to see an event is a
 topdown metic or slots

The string comparisons were overly broad and could fire for the
incorrect PMU and events. Switch to using the config in the attribute
then add a perf test to confirm the attribute config values match
those of parsed events of that name and don't match others. This
exposed matches for slots events that shouldn't have matched as the
slots fixed counter event, such as topdown.slots_p.

Fixes: fbc798316bef ("perf x86/topdown: Refine helper arch_is_topdown_metrics()")
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250719030517.1990983-14-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/arch/x86/include/arch-tests.h |  4 ++
 tools/perf/arch/x86/tests/Build          |  1 +
 tools/perf/arch/x86/tests/arch-tests.c   |  1 +
 tools/perf/arch/x86/tests/topdown.c      | 76 ++++++++++++++++++++++++
 tools/perf/arch/x86/util/evsel.c         | 46 ++++----------
 tools/perf/arch/x86/util/topdown.c       | 31 ++++------
 tools/perf/arch/x86/util/topdown.h       |  4 ++
 7 files changed, 108 insertions(+), 55 deletions(-)
 create mode 100644 tools/perf/arch/x86/tests/topdown.c

diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h
index 4fd425157d7d..8713e9122d4c 100644
--- a/tools/perf/arch/x86/include/arch-tests.h
+++ b/tools/perf/arch/x86/include/arch-tests.h
@@ -2,6 +2,8 @@
 #ifndef ARCH_TESTS_H
 #define ARCH_TESTS_H
 
+#include "tests/tests.h"
+
 struct test_suite;
 
 /* Tests */
@@ -17,6 +19,8 @@ int test__amd_ibs_via_core_pmu(struct test_suite *test, int subtest);
 int test__amd_ibs_period(struct test_suite *test, int subtest);
 int test__hybrid(struct test_suite *test, int subtest);
 
+DECLARE_SUITE(x86_topdown);
+
 extern struct test_suite *arch_tests[];
 
 #endif
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index 01d5527f38c7..311b6b53d3d8 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -11,6 +11,7 @@ endif
 perf-test-$(CONFIG_X86_64) += bp-modify.o
 perf-test-y += amd-ibs-via-core-pmu.o
 perf-test-y += amd-ibs-period.o
+perf-test-y += topdown.o
 
 ifdef SHELLCHECK
   SHELL_TESTS := gen-insn-x86-dat.sh
diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c
index bfee2432515b..29ec1861ccef 100644
--- a/tools/perf/arch/x86/tests/arch-tests.c
+++ b/tools/perf/arch/x86/tests/arch-tests.c
@@ -53,5 +53,6 @@ struct test_suite *arch_tests[] = {
 	&suite__amd_ibs_via_core_pmu,
 	&suite__amd_ibs_period,
 	&suite__hybrid,
+	&suite__x86_topdown,
 	NULL,
 };
diff --git a/tools/perf/arch/x86/tests/topdown.c b/tools/perf/arch/x86/tests/topdown.c
new file mode 100644
index 000000000000..8d0ea7a4bbc1
--- /dev/null
+++ b/tools/perf/arch/x86/tests/topdown.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arch-tests.h"
+#include "../util/topdown.h"
+#include "evlist.h"
+#include "parse-events.h"
+#include "pmu.h"
+#include "pmus.h"
+
+static int event_cb(void *state, struct pmu_event_info *info)
+{
+	char buf[256];
+	struct parse_events_error parse_err;
+	int *ret = state, err;
+	struct evlist *evlist = evlist__new();
+	struct evsel *evsel;
+
+	if (!evlist)
+		return -ENOMEM;
+
+	parse_events_error__init(&parse_err);
+	snprintf(buf, sizeof(buf), "%s/%s/", info->pmu->name, info->name);
+	err = parse_events(evlist, buf, &parse_err);
+	if (err) {
+		parse_events_error__print(&parse_err, buf);
+		*ret = TEST_FAIL;
+	}
+	parse_events_error__exit(&parse_err);
+	evlist__for_each_entry(evlist, evsel) {
+		bool fail = false;
+		bool p_core_pmu = evsel->pmu->type == PERF_TYPE_RAW;
+		const char *name = evsel__name(evsel);
+
+		if (strcasestr(name, "uops_retired.slots") ||
+		    strcasestr(name, "topdown.backend_bound_slots") ||
+		    strcasestr(name, "topdown.br_mispredict_slots") ||
+		    strcasestr(name, "topdown.memory_bound_slots") ||
+		    strcasestr(name, "topdown.bad_spec_slots") ||
+		    strcasestr(name, "topdown.slots_p")) {
+			if (arch_is_topdown_slots(evsel) || arch_is_topdown_metrics(evsel))
+				fail = true;
+		} else if (strcasestr(name, "slots")) {
+			if (arch_is_topdown_slots(evsel) != p_core_pmu ||
+			    arch_is_topdown_metrics(evsel))
+				fail = true;
+		} else if (strcasestr(name, "topdown")) {
+			if (arch_is_topdown_slots(evsel) ||
+			    arch_is_topdown_metrics(evsel) != p_core_pmu)
+				fail = true;
+		} else if (arch_is_topdown_slots(evsel) || arch_is_topdown_metrics(evsel)) {
+			fail = true;
+		}
+		if (fail) {
+			pr_debug("Broken topdown information for '%s'\n", evsel__name(evsel));
+			*ret = TEST_FAIL;
+		}
+	}
+	evlist__delete(evlist);
+	return 0;
+}
+
+static int test__x86_topdown(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+	int ret = TEST_OK;
+	struct perf_pmu *pmu = NULL;
+
+	if (!topdown_sys_has_perf_metrics())
+		return TEST_OK;
+
+	while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
+		if (perf_pmu__for_each_event(pmu, /*skip_duplicate_pmus=*/false, &ret, event_cb))
+			break;
+	}
+	return ret;
+}
+
+DEFINE_SUITE("x86 topdown", x86_topdown);
diff --git a/tools/perf/arch/x86/util/evsel.c b/tools/perf/arch/x86/util/evsel.c
index 3dd29ba2c23b..9bc80fff3aa0 100644
--- a/tools/perf/arch/x86/util/evsel.c
+++ b/tools/perf/arch/x86/util/evsel.c
@@ -23,47 +23,25 @@ void arch_evsel__set_sample_weight(struct evsel *evsel)
 bool evsel__sys_has_perf_metrics(const struct evsel *evsel)
 {
 	struct perf_pmu *pmu;
-	u32 type = evsel->core.attr.type;
+
+	if (!topdown_sys_has_perf_metrics())
+		return false;
 
 	/*
-	 * The PERF_TYPE_RAW type is the core PMU type, e.g., "cpu" PMU
-	 * on a non-hybrid machine, "cpu_core" PMU on a hybrid machine.
-	 * The slots event is only available for the core PMU, which
-	 * supports the perf metrics feature.
-	 * Checking both the PERF_TYPE_RAW type and the slots event
-	 * should be good enough to detect the perf metrics feature.
+	 * The PERF_TYPE_RAW type is the core PMU type, e.g., "cpu" PMU on a
+	 * non-hybrid machine, "cpu_core" PMU on a hybrid machine.  The
+	 * topdown_sys_has_perf_metrics checks the slots event is only available
+	 * for the core PMU, which supports the perf metrics feature. Checking
+	 * both the PERF_TYPE_RAW type and the slots event should be good enough
+	 * to detect the perf metrics feature.
 	 */
-again:
-	switch (type) {
-	case PERF_TYPE_HARDWARE:
-	case PERF_TYPE_HW_CACHE:
-		type = evsel->core.attr.config >> PERF_PMU_TYPE_SHIFT;
-		if (type)
-			goto again;
-		break;
-	case PERF_TYPE_RAW:
-		break;
-	default:
-		return false;
-	}
-
-	pmu = evsel->pmu;
-	if (pmu && perf_pmu__is_fake(pmu))
-		pmu = NULL;
-
-	if (!pmu) {
-		while ((pmu = perf_pmus__scan_core(pmu)) != NULL) {
-			if (pmu->type == PERF_TYPE_RAW)
-				break;
-		}
-	}
-	return pmu && perf_pmu__have_event(pmu, "slots");
+	pmu = evsel__find_pmu(evsel);
+	return pmu && pmu->type == PERF_TYPE_RAW;
 }
 
 bool arch_evsel__must_be_in_group(const struct evsel *evsel)
 {
-	if (!evsel__sys_has_perf_metrics(evsel) || !evsel->name ||
-	    strcasestr(evsel->name, "uops_retired.slots"))
+	if (!evsel__sys_has_perf_metrics(evsel))
 		return false;
 
 	return arch_is_topdown_metrics(evsel) || arch_is_topdown_slots(evsel);
diff --git a/tools/perf/arch/x86/util/topdown.c b/tools/perf/arch/x86/util/topdown.c
index d1c654839049..66b231fbf52e 100644
--- a/tools/perf/arch/x86/util/topdown.c
+++ b/tools/perf/arch/x86/util/topdown.c
@@ -1,6 +1,4 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "api/fs/fs.h"
-#include "util/evsel.h"
 #include "util/evlist.h"
 #include "util/pmu.h"
 #include "util/pmus.h"
@@ -8,6 +6,9 @@
 #include "topdown.h"
 #include "evsel.h"
 
+// cmask=0, inv=0, pc=0, edge=0, umask=4, event=0
+#define TOPDOWN_SLOTS		0x0400
+
 /* Check whether there is a PMU which supports the perf metrics. */
 bool topdown_sys_has_perf_metrics(void)
 {
@@ -32,31 +33,19 @@ bool topdown_sys_has_perf_metrics(void)
 	return has_perf_metrics;
 }
 
-#define TOPDOWN_SLOTS		0x0400
 bool arch_is_topdown_slots(const struct evsel *evsel)
 {
-	if (evsel->core.attr.config == TOPDOWN_SLOTS)
-		return true;
-
-	return false;
+	return evsel->core.attr.type == PERF_TYPE_RAW &&
+	       evsel->core.attr.config == TOPDOWN_SLOTS &&
+	       evsel->core.attr.config1 == 0;
 }
 
 bool arch_is_topdown_metrics(const struct evsel *evsel)
 {
-	int config = evsel->core.attr.config;
-	const char *name_from_config;
-	struct perf_pmu *pmu;
-
-	/* All topdown events have an event code of 0. */
-	if ((config & 0xFF) != 0)
-		return false;
-
-	pmu = evsel__find_pmu(evsel);
-	if (!pmu || !pmu->is_core)
-		return false;
-
-	name_from_config = perf_pmu__name_from_config(pmu, config);
-	return name_from_config && strcasestr(name_from_config, "topdown");
+	// cmask=0, inv=0, pc=0, edge=0, umask=0x80-0x87, event=0
+	return evsel->core.attr.type == PERF_TYPE_RAW &&
+		(evsel->core.attr.config & 0xFFFFF8FF) == 0x8000 &&
+		evsel->core.attr.config1 == 0;
 }
 
 /*
diff --git a/tools/perf/arch/x86/util/topdown.h b/tools/perf/arch/x86/util/topdown.h
index 1bae9b1822d7..2349536cf882 100644
--- a/tools/perf/arch/x86/util/topdown.h
+++ b/tools/perf/arch/x86/util/topdown.h
@@ -2,6 +2,10 @@
 #ifndef _TOPDOWN_H
 #define _TOPDOWN_H 1
 
+#include <stdbool.h>
+
+struct evsel;
+
 bool topdown_sys_has_perf_metrics(void);
 bool arch_is_topdown_slots(const struct evsel *evsel);
 bool arch_is_topdown_metrics(const struct evsel *evsel);

From 8dcd27b1b8661f64e220bc26a499865261d5d0f1 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:16 -0700
Subject: [PATCH 145/179] perf parse-events: Fix missing slots for Intel
 topdown metric events

Topdown metric events require grouping with a slots event. In perf
metrics this is currently achieved by metrics adding an unnecessary
"0 * tma_info_thread_slots". New TMA metrics trigger optimizations of
the metric expression that removes the event and breaks the metric due
to the missing but required event. Add a pass immediately before
sorting and fixing parsed events, that insert a slots event if one is
missing. Update test expectations to match this.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250719030517.1990983-15-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/arch/x86/util/evlist.c  | 24 ++++++++++++++++++++++++
 tools/perf/arch/x86/util/topdown.c | 28 ++++++++++++++++++++++++++++
 tools/perf/arch/x86/util/topdown.h |  2 ++
 tools/perf/tests/parse-events.c    | 24 ++++++++++++------------
 tools/perf/util/evlist.h           |  1 +
 tools/perf/util/parse-events.c     | 10 ++++++++++
 6 files changed, 77 insertions(+), 12 deletions(-)

diff --git a/tools/perf/arch/x86/util/evlist.c b/tools/perf/arch/x86/util/evlist.c
index 1969758cc8c1..75e9d00a1494 100644
--- a/tools/perf/arch/x86/util/evlist.c
+++ b/tools/perf/arch/x86/util/evlist.c
@@ -81,3 +81,27 @@ int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs)
 	/* Default ordering by insertion index. */
 	return lhs->core.idx - rhs->core.idx;
 }
+
+int arch_evlist__add_required_events(struct list_head *list)
+{
+	struct evsel *pos, *metric_event = NULL;
+	int idx = 0;
+
+	if (!topdown_sys_has_perf_metrics())
+		return 0;
+
+	list_for_each_entry(pos, list, core.node) {
+		if (arch_is_topdown_slots(pos)) {
+			/* Slots event already present, nothing to do. */
+			return 0;
+		}
+		if (metric_event == NULL && arch_is_topdown_metrics(pos))
+			metric_event = pos;
+		idx++;
+	}
+	if (metric_event == NULL) {
+		/* No topdown metric events, nothing to do. */
+		return 0;
+	}
+	return topdown_insert_slots_event(list, idx + 1, metric_event);
+}
diff --git a/tools/perf/arch/x86/util/topdown.c b/tools/perf/arch/x86/util/topdown.c
index 66b231fbf52e..0d01b662627a 100644
--- a/tools/perf/arch/x86/util/topdown.c
+++ b/tools/perf/arch/x86/util/topdown.c
@@ -77,3 +77,31 @@ bool arch_topdown_sample_read(struct evsel *leader)
 
 	return false;
 }
+
+/*
+ * Make a copy of the topdown metric event metric_event with the given index but
+ * change its configuration to be a topdown slots event. Copying from
+ * metric_event ensures modifiers are the same.
+ */
+int topdown_insert_slots_event(struct list_head *list, int idx, struct evsel *metric_event)
+{
+	struct evsel *evsel = evsel__new_idx(&metric_event->core.attr, idx);
+
+	if (!evsel)
+		return -ENOMEM;
+
+	evsel->core.attr.config = TOPDOWN_SLOTS;
+	evsel->core.cpus = perf_cpu_map__get(metric_event->core.cpus);
+	evsel->core.pmu_cpus = perf_cpu_map__get(metric_event->core.pmu_cpus);
+	evsel->core.is_pmu_core = true;
+	evsel->pmu = metric_event->pmu;
+	evsel->name = strdup("slots");
+	evsel->precise_max = metric_event->precise_max;
+	evsel->sample_read = metric_event->sample_read;
+	evsel->weak_group = metric_event->weak_group;
+	evsel->bpf_counter = metric_event->bpf_counter;
+	evsel->retire_lat = metric_event->retire_lat;
+	evsel__set_leader(evsel, evsel__leader(metric_event));
+	list_add_tail(&evsel->core.node, list);
+	return 0;
+}
diff --git a/tools/perf/arch/x86/util/topdown.h b/tools/perf/arch/x86/util/topdown.h
index 2349536cf882..69035565e649 100644
--- a/tools/perf/arch/x86/util/topdown.h
+++ b/tools/perf/arch/x86/util/topdown.h
@@ -5,9 +5,11 @@
 #include <stdbool.h>
 
 struct evsel;
+struct list_head;
 
 bool topdown_sys_has_perf_metrics(void);
 bool arch_is_topdown_slots(const struct evsel *evsel);
 bool arch_is_topdown_metrics(const struct evsel *evsel);
+int topdown_insert_slots_event(struct list_head *list, int idx, struct evsel *metric_event);
 
 #endif
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 5ec2e5607987..bb8004397650 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -719,20 +719,20 @@ static int test__checkevent_pmu_partial_time_callgraph(struct evlist *evlist)
 
 static int test__checkevent_pmu_events(struct evlist *evlist)
 {
-	struct evsel *evsel = evlist__first(evlist);
+	struct evsel *evsel;
 
-	TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->core.nr_entries);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type ||
-				      strcmp(evsel->pmu->name, "cpu"));
-	TEST_ASSERT_VAL("wrong exclude_user",
-			!evsel->core.attr.exclude_user);
-	TEST_ASSERT_VAL("wrong exclude_kernel",
-			evsel->core.attr.exclude_kernel);
-	TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv);
-	TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip);
-	TEST_ASSERT_VAL("wrong pinned", !evsel->core.attr.pinned);
-	TEST_ASSERT_VAL("wrong exclusive", !evsel->core.attr.exclusive);
+	TEST_ASSERT_VAL("wrong number of entries", 1 <= evlist->core.nr_entries);
 
+	evlist__for_each_entry(evlist, evsel) {
+		TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type ||
+					      strcmp(evsel->pmu->name, "cpu"));
+		TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user);
+		TEST_ASSERT_VAL("wrong exclude_kernel", evsel->core.attr.exclude_kernel);
+		TEST_ASSERT_VAL("wrong exclude_hv", evsel->core.attr.exclude_hv);
+		TEST_ASSERT_VAL("wrong precise_ip", !evsel->core.attr.precise_ip);
+		TEST_ASSERT_VAL("wrong pinned", !evsel->core.attr.pinned);
+		TEST_ASSERT_VAL("wrong exclusive", !evsel->core.attr.exclusive);
+	}
 	return TEST_OK;
 }
 
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index fac1a01ba13f..1472d2179be1 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -111,6 +111,7 @@ void evlist__add(struct evlist *evlist, struct evsel *entry);
 void evlist__remove(struct evlist *evlist, struct evsel *evsel);
 
 int arch_evlist__cmp(const struct evsel *lhs, const struct evsel *rhs);
+int arch_evlist__add_required_events(struct list_head *list);
 
 int evlist__add_dummy(struct evlist *evlist);
 struct evsel *evlist__add_aux_dummy(struct evlist *evlist, bool system_wide);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index fe2073c6b549..01fa8c80998b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2190,6 +2190,11 @@ static int evlist__cmp(void *_fg_idx, const struct list_head *l, const struct li
 	return arch_evlist__cmp(lhs, rhs);
 }
 
+int __weak arch_evlist__add_required_events(struct list_head *list __always_unused)
+{
+	return 0;
+}
+
 static int parse_events__sort_events_and_fix_groups(struct list_head *list)
 {
 	int idx = 0, force_grouped_idx = -1;
@@ -2201,6 +2206,11 @@ static int parse_events__sort_events_and_fix_groups(struct list_head *list)
 	struct evsel *force_grouped_leader = NULL;
 	bool last_event_was_forced_leader = false;
 
+	/* On x86 topdown metrics events require a slots event. */
+	ret = arch_evlist__add_required_events(list);
+	if (ret)
+		return ret;
+
 	/*
 	 * Compute index to insert ungrouped events at. Place them where the
 	 * first ungrouped event appears.

From fcc7cc31239d0fbf0ebf25e65f7f572caed40206 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 18 Jul 2025 20:05:17 -0700
Subject: [PATCH 146/179] perf metricgroups: Add NO_THRESHOLD_AND_NMI
 constraint

Thresholds can increase the number of counters a metric needs. The NMI
watchdog can take away a counter (hopefully the buddy watchdog will
become the default and this will no longer be true). Add a new
constraint for the case that a metric and its thresholds would fit in
counters but only if the NMI watchdog isn't enabled. Either the
threshold or the NMI watchdog should be disabled to make the metric
fit. Wire this up into the metric__group_events logic.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250719030517.1990983-16-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/pmu-events/jevents.py   |  1 +
 tools/perf/pmu-events/pmu-events.h | 14 ++++++++++----
 tools/perf/util/metricgroup.c      | 16 ++++++++++++----
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index e821155151ec..0abd3cfb15ea 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -235,6 +235,7 @@ class JsonEvent:
           'NO_GROUP_EVENTS_NMI': '2',
           'NO_NMI_WATCHDOG': '2',
           'NO_GROUP_EVENTS_SMT': '3',
+          'NO_THRESHOLD_AND_NMI': '4',
       }
       return metric_constraint_to_enum[metric_constraint]
 
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index a523936846e0..ea022ea55087 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -25,15 +25,21 @@ enum metric_event_groups {
 	 */
 	MetricNoGroupEvents = 1,
 	/**
-	 * @MetricNoGroupEventsNmi: Don't group events for the metric if the NMI
-	 *                          watchdog is enabled.
+	 * @MetricNoGroupEventsNmi:
+	 * Don't group events for the metric if the NMI watchdog is enabled.
 	 */
 	MetricNoGroupEventsNmi = 2,
 	/**
-	 * @MetricNoGroupEventsSmt: Don't group events for the metric if SMT is
-	 *                          enabled.
+	 * @MetricNoGroupEventsSmt:
+	 * Don't group events for the metric if SMT is enabled.
 	 */
 	MetricNoGroupEventsSmt = 3,
+	/**
+	 * @MetricNoGroupEventsThresholdAndNmi:
+	 * Don't group events for the metric thresholds and if the NMI watchdog
+	 * is enabled.
+	 */
+	MetricNoGroupEventsThresholdAndNmi = 4,
 };
 /*
  * Describe each PMU event. Each CPU has a table of PMU events.
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 3cc6c47402bd..595b83142d2c 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -179,7 +179,7 @@ static void metric__watchdog_constraint_hint(const char *name, bool foot)
 		   "    echo 1 > /proc/sys/kernel/nmi_watchdog\n");
 }
 
-static bool metric__group_events(const struct pmu_metric *pm)
+static bool metric__group_events(const struct pmu_metric *pm, bool metric_no_threshold)
 {
 	switch (pm->event_grouping) {
 	case MetricNoGroupEvents:
@@ -191,6 +191,13 @@ static bool metric__group_events(const struct pmu_metric *pm)
 		return false;
 	case MetricNoGroupEventsSmt:
 		return !smt_on();
+	case MetricNoGroupEventsThresholdAndNmi:
+		if (metric_no_threshold)
+			return true;
+		if (!sysctl__nmi_watchdog_enabled())
+			return true;
+		metric__watchdog_constraint_hint(pm->metric_name, /*foot=*/false);
+		return false;
 	case MetricGroupEvents:
 	default:
 		return true;
@@ -212,6 +219,7 @@ static void metric__free(struct metric *m)
 static struct metric *metric__new(const struct pmu_metric *pm,
 				  const char *modifier,
 				  bool metric_no_group,
+				  bool metric_no_threshold,
 				  int runtime,
 				  const char *user_requested_cpu_list,
 				  bool system_wide)
@@ -246,7 +254,7 @@ static struct metric *metric__new(const struct pmu_metric *pm,
 	}
 	m->pctx->sctx.runtime = runtime;
 	m->pctx->sctx.system_wide = system_wide;
-	m->group_events = !metric_no_group && metric__group_events(pm);
+	m->group_events = !metric_no_group && metric__group_events(pm, metric_no_threshold);
 	m->metric_refs = NULL;
 	m->evlist = NULL;
 
@@ -831,8 +839,8 @@ static int __add_metric(struct list_head *metric_list,
 		 * This metric is the root of a tree and may reference other
 		 * metrics that are added recursively.
 		 */
-		root_metric = metric__new(pm, modifier, metric_no_group, runtime,
-					  user_requested_cpu_list, system_wide);
+		root_metric = metric__new(pm, modifier, metric_no_group, metric_no_threshold,
+					  runtime, user_requested_cpu_list, system_wide);
 		if (!root_metric)
 			return -ENOMEM;
 

From f3982385bc507991f1ed732c3c7907bff703f4d4 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:41 -0700
Subject: [PATCH 147/179] perf build-id: Reduce size of "size" variable

Later clean up of the dso_id to include a build_id will suffer from
alignment and size issues. The size can only hold up to a value of
BUILD_ID_SIZE (20) and the mmap2 event uses a byte for the value.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/build-id.h         | 2 +-
 tools/perf/util/synthetic-events.c | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index a212497bfdb0..e3e0a446ff0c 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -13,7 +13,7 @@
 
 struct build_id {
 	u8	data[BUILD_ID_SIZE];
-	size_t	size;
+	u8	size;
 };
 
 struct dso;
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index 7c00b09e3a93..d3c454174602 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -2248,7 +2248,9 @@ int perf_event__synthesize_build_id(const struct perf_tool *tool,
 
 	memset(&ev, 0, len);
 
-	ev.build_id.size = min(bid->size, sizeof(ev.build_id.build_id));
+	ev.build_id.size = bid->size;
+	if (ev.build_id.size > sizeof(ev.build_id.build_id))
+		ev.build_id.size = sizeof(ev.build_id.build_id);
 	memcpy(ev.build_id.build_id, bid->data, ev.build_id.size);
 	ev.build_id.header.type = PERF_RECORD_HEADER_BUILD_ID;
 	ev.build_id.header.misc = misc | PERF_RECORD_MISC_BUILD_ID_SIZE;
@@ -2308,7 +2310,9 @@ int perf_event__synthesize_mmap2_build_id(const struct perf_tool *tool,
 	ev.mmap2.len = len;
 	ev.mmap2.pgoff = pgoff;
 
-	ev.mmap2.build_id_size = min(bid->size, sizeof(ev.mmap2.build_id));
+	ev.mmap2.build_id_size = bid->size;
+	if (ev.mmap2.build_id_size > sizeof(ev.mmap2.build_id))
+		ev.build_id.size = sizeof(ev.mmap2.build_id);
 	memcpy(ev.mmap2.build_id, bid->data, ev.mmap2.build_id_size);
 
 	ev.mmap2.prot = prot;

From 5a2ceebd8175874ae0e91a304ad6600d82806973 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:42 -0700
Subject: [PATCH 148/179] perf build-id: Truncate to avoid overflowing the
 build_id data

Warning when the build_id data would be overflowed would lead to
memory corruption, switch to truncation.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/build-id.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index e763e8d99a43..5bc2040bdd0d 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -951,7 +951,10 @@ bool perf_session__read_build_ids(struct perf_session *session, bool with_hits)
 
 void build_id__init(struct build_id *bid, const u8 *data, size_t size)
 {
-	WARN_ON(size > BUILD_ID_SIZE);
+	if (size > BUILD_ID_SIZE) {
+		pr_debug("Truncating build_id size from %zd\n", size);
+		size = BUILD_ID_SIZE;
+	}
 	memcpy(bid->data, data, size);
 	bid->size = size;
 }

From fccaaf6fbbc59910edcf276f97a5b2ef5778c55e Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:43 -0700
Subject: [PATCH 149/179] perf build-id: Change sprintf functions to snprintf

Pass in a size argument rather than implying all build id strings must
be SBUILD_ID_SIZE.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-4-irogers@google.com
[ fixed some build errors ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-buildid-cache.c            | 12 +++----
 tools/perf/builtin-buildid-list.c             |  6 ++--
 tools/perf/tests/sdt.c                        |  2 +-
 tools/perf/util/build-id.c                    | 33 ++++++++-----------
 tools/perf/util/build-id.h                    |  6 ++--
 tools/perf/util/disasm.c                      |  2 +-
 tools/perf/util/dso.c                         |  4 +--
 tools/perf/util/dsos.c                        |  2 +-
 tools/perf/util/event.c                       |  2 +-
 tools/perf/util/header.c                      |  2 +-
 tools/perf/util/map.c                         |  2 +-
 tools/perf/util/probe-event.c                 |  4 +--
 tools/perf/util/probe-file.c                  |  4 +--
 tools/perf/util/probe-finder.c                |  2 +-
 .../scripting-engines/trace-event-python.c    |  7 ++--
 tools/perf/util/symbol.c                      |  2 +-
 16 files changed, 42 insertions(+), 50 deletions(-)

diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index b0511d16aeb6..3f7739b21148 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -31,7 +31,7 @@
 #include <linux/string.h>
 #include <linux/err.h>
 
-static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
+static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid, size_t sbuildid_size)
 {
 	char root_dir[PATH_MAX];
 	char *p;
@@ -42,7 +42,7 @@ static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
 	if (!p)
 		return -1;
 	*p = '\0';
-	return sysfs__sprintf_build_id(root_dir, sbuildid);
+	return sysfs__snprintf_build_id(root_dir, sbuildid, sbuildid_size);
 }
 
 static int build_id_cache__kcore_dir(char *dir, size_t sz)
@@ -128,7 +128,7 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 		return -1;
 	*p = '\0';
 
-	if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
+	if (build_id_cache__kcore_buildid(from_dir, sbuildid, sizeof(sbuildid)) < 0)
 		return -1;
 
 	scnprintf(to_dir, sizeof(to_dir), "%s/%s/%s",
@@ -187,7 +187,7 @@ static int build_id_cache__add_file(const char *filename, struct nsinfo *nsi)
 		return -1;
 	}
 
-	build_id__sprintf(&bid, sbuild_id);
+	build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	err = build_id_cache__add_s(sbuild_id, filename, nsi,
 				    false, false);
 	pr_debug("Adding %s %s: %s\n", sbuild_id, filename,
@@ -211,7 +211,7 @@ static int build_id_cache__remove_file(const char *filename, struct nsinfo *nsi)
 		return -1;
 	}
 
-	build_id__sprintf(&bid, sbuild_id);
+	build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	err = build_id_cache__remove_s(sbuild_id);
 	pr_debug("Removing %s %s: %s\n", sbuild_id, filename,
 		 err ? "FAIL" : "Ok");
@@ -317,7 +317,7 @@ static int build_id_cache__update_file(const char *filename, struct nsinfo *nsi)
 	}
 	err = 0;
 
-	build_id__sprintf(&bid, sbuild_id);
+	build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	if (build_id_cache__cached(sbuild_id))
 		err = build_id_cache__remove_s(sbuild_id);
 
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 52dfacaff8e3..ba8ba0303920 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -31,7 +31,7 @@ static int buildid__map_cb(struct map *map, void *arg __maybe_unused)
 
 	memset(bid_buf, 0, sizeof(bid_buf));
 	if (dso__has_build_id(dso))
-		build_id__sprintf(dso__bid_const(dso), bid_buf);
+		build_id__snprintf(dso__bid_const(dso), bid_buf, sizeof(bid_buf));
 	printf("%s %16" PRIx64 " %16" PRIx64, bid_buf, map__start(map), map__end(map));
 	if (dso_long_name != NULL)
 		printf(" %s", dso_long_name);
@@ -57,7 +57,7 @@ static int sysfs__fprintf_build_id(FILE *fp)
 	char sbuild_id[SBUILD_ID_SIZE];
 	int ret;
 
-	ret = sysfs__sprintf_build_id("/", sbuild_id);
+	ret = sysfs__snprintf_build_id("/", sbuild_id, sizeof(sbuild_id));
 	if (ret != sizeof(sbuild_id))
 		return ret < 0 ? ret : -EINVAL;
 
@@ -69,7 +69,7 @@ static int filename__fprintf_build_id(const char *name, FILE *fp)
 	char sbuild_id[SBUILD_ID_SIZE];
 	int ret;
 
-	ret = filename__sprintf_build_id(name, sbuild_id);
+	ret = filename__snprintf_build_id(name, sbuild_id, sizeof(sbuild_id));
 	if (ret != sizeof(sbuild_id))
 		return ret < 0 ? ret : -EINVAL;
 
diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c
index 919712899251..663c8f700069 100644
--- a/tools/perf/tests/sdt.c
+++ b/tools/perf/tests/sdt.c
@@ -37,7 +37,7 @@ static int build_id_cache__add_file(const char *filename)
 		return err;
 	}
 
-	build_id__sprintf(&bid, sbuild_id);
+	build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	err = build_id_cache__add_s(sbuild_id, filename, NULL, false, false);
 	if (err < 0)
 		pr_debug("Failed to add build id cache of %s\n", filename);
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 5bc2040bdd0d..aa35dceace90 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -67,24 +67,17 @@ int build_id__mark_dso_hit(const struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
-int build_id__sprintf(const struct build_id *build_id, char *bf)
+int build_id__snprintf(const struct build_id *build_id, char *bf, size_t bf_size)
 {
-	char *bid = bf;
-	const u8 *raw = build_id->data;
-	size_t i;
+	size_t offs = 0;
 
-	bf[0] = 0x0;
+	for (size_t i = 0; i < build_id->size && offs < bf_size; ++i)
+		offs += snprintf(bf + offs, bf_size - offs, "%02x", build_id->data[i]);
 
-	for (i = 0; i < build_id->size; ++i) {
-		sprintf(bid, "%02x", *raw);
-		++raw;
-		bid += 2;
-	}
-
-	return (bid - bf) + 1;
+	return offs;
 }
 
-int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id)
+int sysfs__snprintf_build_id(const char *root_dir, char *sbuild_id, size_t sbuild_id_size)
 {
 	char notes[PATH_MAX];
 	struct build_id bid;
@@ -99,10 +92,10 @@ int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id)
 	if (ret < 0)
 		return ret;
 
-	return build_id__sprintf(&bid, sbuild_id);
+	return build_id__snprintf(&bid, sbuild_id, sbuild_id_size);
 }
 
-int filename__sprintf_build_id(const char *pathname, char *sbuild_id)
+int filename__snprintf_build_id(const char *pathname, char *sbuild_id, size_t sbuild_id_size)
 {
 	struct build_id bid;
 	int ret;
@@ -111,7 +104,7 @@ int filename__sprintf_build_id(const char *pathname, char *sbuild_id)
 	if (ret < 0)
 		return ret;
 
-	return build_id__sprintf(&bid, sbuild_id);
+	return build_id__snprintf(&bid, sbuild_id, sbuild_id_size);
 }
 
 /* asnprintf consolidates asprintf and snprintf */
@@ -212,9 +205,9 @@ static bool build_id_cache__valid_id(char *sbuild_id)
 		return false;
 
 	if (!strcmp(pathname, DSO__NAME_KALLSYMS))
-		ret = sysfs__sprintf_build_id("/", real_sbuild_id);
+		ret = sysfs__snprintf_build_id("/", real_sbuild_id, sizeof(real_sbuild_id));
 	else if (pathname[0] == '/')
-		ret = filename__sprintf_build_id(pathname, real_sbuild_id);
+		ret = filename__snprintf_build_id(pathname, real_sbuild_id, sizeof(real_sbuild_id));
 	else
 		ret = -EINVAL;	/* Should we support other special DSO cache? */
 	if (ret >= 0)
@@ -243,7 +236,7 @@ char *__dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
 	if (!dso__has_build_id(dso))
 		return NULL;
 
-	build_id__sprintf(dso__bid_const(dso), sbuild_id);
+	build_id__snprintf(dso__bid_const(dso), sbuild_id, sizeof(sbuild_id));
 	linkname = build_id_cache__linkname(sbuild_id, NULL, 0);
 	if (!linkname)
 		return NULL;
@@ -769,7 +762,7 @@ static int build_id_cache__add_b(const struct build_id *bid,
 {
 	char sbuild_id[SBUILD_ID_SIZE];
 
-	build_id__sprintf(bid, sbuild_id);
+	build_id__snprintf(bid, sbuild_id, sizeof(sbuild_id));
 
 	return __build_id_cache__add_s(sbuild_id, name, nsi, is_kallsyms,
 				       is_vdso, proper_name, root_dir);
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index e3e0a446ff0c..47e621cebe1b 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -21,10 +21,10 @@ struct feat_fd;
 struct nsinfo;
 
 void build_id__init(struct build_id *bid, const u8 *data, size_t size);
-int build_id__sprintf(const struct build_id *build_id, char *bf);
+int build_id__snprintf(const struct build_id *build_id, char *bf, size_t bf_size);
 bool build_id__is_defined(const struct build_id *bid);
-int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
-int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
+int sysfs__snprintf_build_id(const char *root_dir, char *sbuild_id, size_t sbuild_id_size);
+int filename__snprintf_build_id(const char *pathname, char *sbuild_id, size_t sbuild_id_size);
 char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
 				    size_t size);
 
diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c
index ff475a239f4b..b1e4919d016f 100644
--- a/tools/perf/util/disasm.c
+++ b/tools/perf/util/disasm.c
@@ -1218,7 +1218,7 @@ int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, s
 		char *build_id_msg = NULL;
 
 		if (dso__has_build_id(dso)) {
-			build_id__sprintf(dso__bid(dso), bf + 15);
+			build_id__snprintf(dso__bid(dso), bf + 15, sizeof(bf) - 15);
 			build_id_msg = bf;
 		}
 		scnprintf(buf, buflen,
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index c6c1637e098c..4ff94029632e 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -217,7 +217,7 @@ int dso__read_binary_type_filename(const struct dso *dso,
 			break;
 		}
 
-		build_id__sprintf(dso__bid_const(dso), build_id_hex);
+		build_id__snprintf(dso__bid_const(dso), build_id_hex, sizeof(build_id_hex));
 		len = __symbol__join_symfs(filename, size, "/usr/lib/debug/.build-id/");
 		snprintf(filename + len, size - len, "%.2s/%s.debug",
 			 build_id_hex, build_id_hex + 2);
@@ -1708,7 +1708,7 @@ static size_t dso__fprintf_buildid(struct dso *dso, FILE *fp)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
 
-	build_id__sprintf(dso__bid(dso), sbuild_id);
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 	return fprintf(fp, "%s", sbuild_id);
 }
 
diff --git a/tools/perf/util/dsos.c b/tools/perf/util/dsos.c
index 4d213017d202..47538273915d 100644
--- a/tools/perf/util/dsos.c
+++ b/tools/perf/util/dsos.c
@@ -373,7 +373,7 @@ static int dsos__fprintf_buildid_cb(struct dso *dso, void *data)
 
 	if (args->skip && args->skip(dso, args->parm))
 		return 0;
-	build_id__sprintf(dso__bid(dso), sbuild_id);
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 	args->ret += fprintf(args->fp, "%-40s %s\n", sbuild_id, dso__long_name(dso));
 	return 0;
 }
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 14b0d3689137..fcf44149feb2 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -334,7 +334,7 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 
 		build_id__init(&bid, event->mmap2.build_id,
 			       event->mmap2.build_id_size);
-		build_id__sprintf(&bid, sbuild_id);
+		build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 
 		return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
 				   " <%s>]: %c%c%c%c %s\n",
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index d941d7aa0f49..4f8133a18312 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2303,7 +2303,7 @@ static int __event_process_build_id(struct perf_record_header_build_id *bev,
 			free(m.name);
 		}
 
-		build_id__sprintf(dso__bid(dso), sbuild_id);
+		build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 		pr_debug("build id event received for %s: %s [%zu]\n",
 			 dso__long_name(dso), sbuild_id, size);
 		dso__put(dso);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index d729438b7d65..0f6b185f9589 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -354,7 +354,7 @@ int map__load(struct map *map)
 		if (dso__has_build_id(dso)) {
 			char sbuild_id[SBUILD_ID_SIZE];
 
-			build_id__sprintf(dso__bid(dso), sbuild_id);
+			build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 			pr_debug("%s with build id %s not found", name, sbuild_id);
 		} else
 			pr_debug("Failed to open %s", name);
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 307ad6242a4e..c10549fc451b 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -502,7 +502,7 @@ static struct debuginfo *open_from_debuginfod(struct dso *dso, struct nsinfo *ns
 	if (!c)
 		return NULL;
 
-	build_id__sprintf(dso__bid(dso), sbuild_id);
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 	fd = debuginfod_find_debuginfo(c, (const unsigned char *)sbuild_id,
 					0, &path);
 	if (fd >= 0)
@@ -1089,7 +1089,7 @@ static int __show_line_range(struct line_range *lr, const char *module,
 	}
 	if (dinfo->build_id) {
 		build_id__init(&bid, dinfo->build_id, BUILD_ID_SIZE);
-		build_id__sprintf(&bid, sbuild_id);
+		build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	}
 	debuginfo__delete(dinfo);
 	if (ret == 0 || ret == -ENOENT) {
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index ec8ac242fedb..5069fb61f48c 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -448,10 +448,10 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target,
 	if (!target || !strcmp(target, DSO__NAME_KALLSYMS)) {
 		target = DSO__NAME_KALLSYMS;
 		is_kallsyms = true;
-		ret = sysfs__sprintf_build_id("/", sbuildid);
+		ret = sysfs__snprintf_build_id("/", sbuildid, sizeof(sbuildid));
 	} else {
 		nsinfo__mountns_enter(nsi, &nsc);
-		ret = filename__sprintf_build_id(target, sbuildid);
+		ret = filename__snprintf_build_id(target, sbuildid, sizeof(sbuildid));
 		nsinfo__mountns_exit(&nsc);
 	}
 
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 3cc7c40f5097..b74f6fe24bb6 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -859,7 +859,7 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
 		comp_dir = cu_get_comp_dir(&pf->cu_die);
 		if (pf->dbg->build_id) {
 			build_id__init(&bid, pf->dbg->build_id, BUILD_ID_SIZE);
-			build_id__sprintf(&bid, sbuild_id);
+			build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 		}
 		ret = find_source_path(pf->fname, sbuild_id, comp_dir, &fpath);
 		if (ret < 0) {
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 00f2c6c5114d..6655c0bbe0d8 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -780,14 +780,13 @@ static void set_sym_in_dict(PyObject *dict, struct addr_location *al,
 			    const char *sym_field, const char *symoff_field,
 			    const char *map_pgoff)
 {
-	char sbuild_id[SBUILD_ID_SIZE];
-
 	if (al->map) {
+		char sbuild_id[SBUILD_ID_SIZE];
 		struct dso *dso = map__dso(al->map);
 
 		pydict_set_item_string_decref(dict, dso_field,
 					      _PyUnicode_FromString(dso__name(dso)));
-		build_id__sprintf(dso__bid(dso), sbuild_id);
+		build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 		pydict_set_item_string_decref(dict, dso_bid_field,
 			_PyUnicode_FromString(sbuild_id));
 		pydict_set_item_string_decref(dict, dso_map_start,
@@ -1238,7 +1237,7 @@ static int python_export_dso(struct db_export *dbe, struct dso *dso,
 	char sbuild_id[SBUILD_ID_SIZE];
 	PyObject *t;
 
-	build_id__sprintf(dso__bid(dso), sbuild_id);
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 
 	t = tuple_new(5);
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index ae0bd568ac45..573c65da9fe0 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2152,7 +2152,7 @@ static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 			goto proc_kallsyms;
 	}
 
-	build_id__sprintf(dso__bid(dso), sbuild_id);
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 
 	/* Find kallsyms in build-id cache with kcore */
 	scnprintf(path, sizeof(path), "%s/%s/%s",

From 29be60c93d2d9300571230edaa484930cdbec437 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:44 -0700
Subject: [PATCH 150/179] perf build-id: Mark DSO in sample callchains

Previously only the sample IP's map DSO would be marked hit for the
purposes of populating the build ID cache. Walk the call chain to mark
all IPs and DSOs.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/build-id.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index aa35dceace90..3386fa8e1e7e 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -42,10 +42,20 @@
 
 static bool no_buildid_cache;
 
+static int mark_dso_hit_callback(struct callchain_cursor_node *node, void *data __maybe_unused)
+{
+	struct map *map = node->ms.map;
+
+	if (map)
+		dso__set_hit(map__dso(map));
+
+	return 0;
+}
+
 int build_id__mark_dso_hit(const struct perf_tool *tool __maybe_unused,
 			   union perf_event *event,
 			   struct perf_sample *sample,
-			   struct evsel *evsel __maybe_unused,
+			   struct evsel *evsel,
 			   struct machine *machine)
 {
 	struct addr_location al;
@@ -63,6 +73,11 @@ int build_id__mark_dso_hit(const struct perf_tool *tool __maybe_unused,
 		dso__set_hit(map__dso(al.map));
 
 	addr_location__exit(&al);
+
+	sample__for_each_callchain_node(thread, evsel, sample, PERF_MAX_STACK_DEPTH,
+					/*symbols=*/false, mark_dso_hit_callback, /*data=*/NULL);
+
+
 	thread__put(thread);
 	return 0;
 }

From eee4b66105a6fa3b85fe5260d3791d607570ba95 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:45 -0700
Subject: [PATCH 151/179] perf build-id: Ensure struct build_id is empty before
 use

If a build ID is read then not all code paths may ensure it is empty
before use. Initialize the build_id to be zero-ed unless there is
clear initialization such as a call to build_id__init.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/bench/inject-buildid.c  | 2 +-
 tools/perf/builtin-buildid-cache.c | 8 ++++----
 tools/perf/tests/pe-file-parsing.c | 2 +-
 tools/perf/tests/sdt.c             | 2 +-
 tools/perf/util/build-id.c         | 6 +++---
 tools/perf/util/debuginfo.c        | 2 +-
 tools/perf/util/probe-event.c      | 3 ++-
 tools/perf/util/probe-finder.c     | 3 ++-
 tools/perf/util/symbol-minimal.c   | 2 +-
 tools/perf/util/symbol.c           | 5 +++--
 tools/perf/util/synthetic-events.c | 2 +-
 11 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/tools/perf/bench/inject-buildid.c b/tools/perf/bench/inject-buildid.c
index f55c07e4be94..aad572a78d7f 100644
--- a/tools/perf/bench/inject-buildid.c
+++ b/tools/perf/bench/inject-buildid.c
@@ -80,7 +80,7 @@ static int add_dso(const char *fpath, const struct stat *sb __maybe_unused,
 		   int typeflag, struct FTW *ftwbuf __maybe_unused)
 {
 	struct bench_dso *dso = &dsos[nr_dsos];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 
 	if (typeflag == FTW_D || typeflag == FTW_SL)
 		return 0;
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 3f7739b21148..e936a34b7d37 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -175,7 +175,7 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
 static int build_id_cache__add_file(const char *filename, struct nsinfo *nsi)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	int err;
 	struct nscookie nsc;
 
@@ -198,7 +198,7 @@ static int build_id_cache__add_file(const char *filename, struct nsinfo *nsi)
 static int build_id_cache__remove_file(const char *filename, struct nsinfo *nsi)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	struct nscookie nsc;
 
 	int err;
@@ -275,7 +275,7 @@ static int build_id_cache__purge_all(void)
 static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
 {
 	char filename[PATH_MAX];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 
 	if (!dso__build_id_filename(dso, filename, sizeof(filename), false))
 		return true;
@@ -303,7 +303,7 @@ static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *f
 static int build_id_cache__update_file(const char *filename, struct nsinfo *nsi)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	struct nscookie nsc;
 
 	int err;
diff --git a/tools/perf/tests/pe-file-parsing.c b/tools/perf/tests/pe-file-parsing.c
index fff58b220c07..30c7da79e109 100644
--- a/tools/perf/tests/pe-file-parsing.c
+++ b/tools/perf/tests/pe-file-parsing.c
@@ -24,7 +24,7 @@ static int run_dir(const char *d)
 {
 	char filename[PATH_MAX];
 	char debugfile[PATH_MAX];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	char debuglink[PATH_MAX];
 	char expect_build_id[] = {
 		0x5a, 0x0f, 0xd8, 0x82, 0xb5, 0x30, 0x84, 0x22,
diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c
index 663c8f700069..93baee2eae42 100644
--- a/tools/perf/tests/sdt.c
+++ b/tools/perf/tests/sdt.c
@@ -28,7 +28,7 @@ static int target_function(void)
 static int build_id_cache__add_file(const char *filename)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	int err;
 
 	err = filename__read_build_id(filename, &bid);
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 3386fa8e1e7e..1abd5a670665 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -95,7 +95,7 @@ int build_id__snprintf(const struct build_id *build_id, char *bf, size_t bf_size
 int sysfs__snprintf_build_id(const char *root_dir, char *sbuild_id, size_t sbuild_id_size)
 {
 	char notes[PATH_MAX];
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	int ret;
 
 	if (!root_dir)
@@ -112,7 +112,7 @@ int sysfs__snprintf_build_id(const char *root_dir, char *sbuild_id, size_t sbuil
 
 int filename__snprintf_build_id(const char *pathname, char *sbuild_id, size_t sbuild_id_size)
 {
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	int ret;
 
 	ret = filename__read_build_id(pathname, &bid);
@@ -849,7 +849,7 @@ static int filename__read_build_id_ns(const char *filename,
 
 static bool dso__build_id_mismatch(struct dso *dso, const char *name)
 {
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	bool ret = false;
 
 	mutex_lock(dso__lock(dso));
diff --git a/tools/perf/util/debuginfo.c b/tools/perf/util/debuginfo.c
index b5deea7cbdf2..a44c70f93156 100644
--- a/tools/perf/util/debuginfo.c
+++ b/tools/perf/util/debuginfo.c
@@ -103,7 +103,7 @@ struct debuginfo *debuginfo__new(const char *path)
 	char buf[PATH_MAX], nil = '\0';
 	struct dso *dso;
 	struct debuginfo *dinfo = NULL;
-	struct build_id bid;
+	struct build_id bid = { .size = 0};
 
 	/* Try to open distro debuginfo files */
 	dso = dso__new(path);
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index c10549fc451b..57ad150f8c43 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1063,7 +1063,6 @@ static int sprint_line_description(char *sbuf, size_t size, struct line_range *l
 static int __show_line_range(struct line_range *lr, const char *module,
 			     bool user)
 {
-	struct build_id bid;
 	int l = 1;
 	struct int_node *ln;
 	struct debuginfo *dinfo;
@@ -1088,6 +1087,8 @@ static int __show_line_range(struct line_range *lr, const char *module,
 			ret = -ENOENT;
 	}
 	if (dinfo->build_id) {
+		struct build_id bid;
+
 		build_id__init(&bid, dinfo->build_id, BUILD_ID_SIZE);
 		build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 	}
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index b74f6fe24bb6..5ffd97ee4898 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -848,7 +848,6 @@ static int probe_point_lazy_walker(const char *fname, int lineno,
 /* Find probe points from lazy pattern  */
 static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
 {
-	struct build_id bid;
 	char sbuild_id[SBUILD_ID_SIZE] = "";
 	int ret = 0;
 	char *fpath;
@@ -858,6 +857,8 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
 
 		comp_dir = cu_get_comp_dir(&pf->cu_die);
 		if (pf->dbg->build_id) {
+			struct build_id bid;
+
 			build_id__init(&bid, pf->dbg->build_id, BUILD_ID_SIZE);
 			build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
 		}
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index c73fe2e09fe9..7201494c5c20 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -317,7 +317,7 @@ int dso__load_sym(struct dso *dso, struct map *map __maybe_unused,
 		  struct symsrc *runtime_ss __maybe_unused,
 		  int kmodule __maybe_unused)
 {
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	int ret;
 
 	ret = fd__is_64_bit(ss->fd);
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 573c65da9fe0..e816e4220d33 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1813,7 +1813,6 @@ int dso__load(struct dso *dso, struct map *map)
 	struct symsrc *syms_ss = NULL, *runtime_ss = NULL;
 	bool kmod;
 	bool perfmap;
-	struct build_id bid;
 	struct nscookie nsc;
 	char newmapname[PATH_MAX];
 	const char *map_path = dso__long_name(dso);
@@ -1874,6 +1873,8 @@ int dso__load(struct dso *dso, struct map *map)
 	 */
 	if (!dso__has_build_id(dso) &&
 	    is_regular_file(dso__long_name(dso))) {
+		struct build_id bid = { .size = 0, };
+
 		__symbol__join_symfs(name, PATH_MAX, dso__long_name(dso));
 		if (filename__read_build_id(name, &bid) > 0)
 			dso__set_build_id(dso, &bid);
@@ -2122,7 +2123,7 @@ static bool filename__readable(const char *file)
 
 static char *dso__find_kallsyms(struct dso *dso, struct map *map)
 {
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	char sbuild_id[SBUILD_ID_SIZE];
 	bool is_host = false;
 	char path[PATH_MAX];
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index d3c454174602..d6f9a4548c92 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -368,7 +368,7 @@ static void perf_record_mmap2__read_build_id(struct perf_record_mmap2 *event,
 					     struct machine *machine,
 					     bool is_kernel)
 {
-	struct build_id bid;
+	struct build_id bid = { .size = 0, };
 	struct nsinfo *nsi;
 	struct nscookie nc;
 	struct dso *dso = NULL;

From d9f2ecbc5e47fca7bda7c13cff3b3534b1467b32 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:46 -0700
Subject: [PATCH 152/179] perf dso: Move build_id to dso_id

The dso_id previously contained the major, minor, inode and inode
generation information from a mmap2 event - the inode generation would
be zero when reading from /proc/pid/maps. The build_id was in the
dso. With build ID mmap2 events these fields wouldn't be initialized
which would largely mean the special empty case where any dso would
match for equality. This isn't desirable as if a dso is replaced we
want the comparison to yield a difference.

To support detecting the difference between DSOs based on build_id,
move the build_id out of the DSO and into the dso_id. The dso_id is
also stored in the DSO so nothing is lost. Capture in the dso_id what
parts have been initialized and rename dso_id__inject to
dso_id__improve_id so that it is clear the dso_id is being improved
upon with additional information. With the build_id in the dso_id, use
memcmp to compare for equality.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-buildid-list.c       |   2 +-
 tools/perf/builtin-inject.c             |  36 ++++----
 tools/perf/builtin-report.c             |  11 ++-
 tools/perf/include/perf/perf_dlfilter.h |   2 +-
 tools/perf/tests/symbols.c              |   4 +-
 tools/perf/util/build-id.c              |   4 +-
 tools/perf/util/dso.c                   | 109 +++++++++++++-----------
 tools/perf/util/dso.h                   |  75 ++++++++--------
 tools/perf/util/dsos.c                  |  18 ++--
 tools/perf/util/machine.c               |  28 +++---
 tools/perf/util/map.c                   |  13 ++-
 tools/perf/util/map.h                   |   5 +-
 tools/perf/util/sort.c                  |  27 +++---
 tools/perf/util/synthetic-events.c      |  18 ++--
 14 files changed, 197 insertions(+), 155 deletions(-)

diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index ba8ba0303920..151cd84b6dfe 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -31,7 +31,7 @@ static int buildid__map_cb(struct map *map, void *arg __maybe_unused)
 
 	memset(bid_buf, 0, sizeof(bid_buf));
 	if (dso__has_build_id(dso))
-		build_id__snprintf(dso__bid_const(dso), bid_buf, sizeof(bid_buf));
+		build_id__snprintf(dso__bid(dso), bid_buf, sizeof(bid_buf));
 	printf("%s %16" PRIx64 " %16" PRIx64, bid_buf, map__start(map), map__end(map));
 	if (dso_long_name != NULL)
 		printf(" %s", dso_long_name);
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index b15eac0716f7..13bbb493141f 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -587,15 +587,17 @@ static int perf_event__repipe_mmap2(const struct perf_tool *tool,
 				struct perf_sample *sample,
 				struct machine *machine)
 {
-	struct dso_id id;
-	struct dso_id *dso_id = NULL;
+	struct dso_id id = dso_id_empty;
 
-	if (!(event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID)) {
+	if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
+		build_id__init(&id.build_id, event->mmap2.build_id, event->mmap2.build_id_size);
+	} else {
 		id.maj = event->mmap2.maj;
 		id.min = event->mmap2.min;
 		id.ino = event->mmap2.ino;
 		id.ino_generation = event->mmap2.ino_generation;
-		dso_id = &id;
+		id.mmap2_valid = true;
+		id.mmap2_ino_generation_valid = true;
 	}
 
 	return perf_event__repipe_common_mmap(
@@ -603,7 +605,7 @@ static int perf_event__repipe_mmap2(const struct perf_tool *tool,
 		event->mmap2.pid, event->mmap2.tid,
 		event->mmap2.start, event->mmap2.len, event->mmap2.pgoff,
 		event->mmap2.flags, event->mmap2.prot,
-		event->mmap2.filename, dso_id,
+		event->mmap2.filename, &id,
 		perf_event__process_mmap2);
 }
 
@@ -671,19 +673,20 @@ static int perf_event__repipe_tracing_data(struct perf_session *session,
 static int dso__read_build_id(struct dso *dso)
 {
 	struct nscookie nsc;
+	struct build_id bid = { .size = 0, };
 
 	if (dso__has_build_id(dso))
 		return 0;
 
 	mutex_lock(dso__lock(dso));
 	nsinfo__mountns_enter(dso__nsinfo(dso), &nsc);
-	if (filename__read_build_id(dso__long_name(dso), dso__bid(dso)) > 0)
-		dso__set_has_build_id(dso);
+	if (filename__read_build_id(dso__long_name(dso), &bid) > 0)
+		dso__set_build_id(dso, &bid);
 	else if (dso__nsinfo(dso)) {
 		char *new_name = dso__filename_with_chroot(dso, dso__long_name(dso));
 
-		if (new_name && filename__read_build_id(new_name, dso__bid(dso)) > 0)
-			dso__set_has_build_id(dso);
+		if (new_name && filename__read_build_id(new_name, &bid) > 0)
+			dso__set_build_id(dso, &bid);
 		free(new_name);
 	}
 	nsinfo__mountns_exit(&nsc);
@@ -732,23 +735,26 @@ static bool perf_inject__lookup_known_build_id(struct perf_inject *inject,
 					       struct dso *dso)
 {
 	struct str_node *pos;
-	int bid_len;
 
 	strlist__for_each_entry(pos, inject->known_build_ids) {
+		struct build_id bid;
 		const char *build_id, *dso_name;
+		size_t bid_len;
 
 		build_id = skip_spaces(pos->s);
 		dso_name = strchr(build_id, ' ');
 		bid_len = dso_name - pos->s;
+		if (bid_len > sizeof(bid.data))
+			bid_len = sizeof(bid.data);
 		dso_name = skip_spaces(dso_name);
 		if (strcmp(dso__long_name(dso), dso_name))
 			continue;
-		for (int ix = 0; 2 * ix + 1 < bid_len; ++ix) {
-			dso__bid(dso)->data[ix] = (hex(build_id[2 * ix]) << 4 |
-						  hex(build_id[2 * ix + 1]));
+		for (size_t ix = 0; 2 * ix + 1 < bid_len; ++ix) {
+			bid.data[ix] = (hex(build_id[2 * ix]) << 4 |
+					hex(build_id[2 * ix + 1]));
 		}
-		dso__bid(dso)->size = bid_len / 2;
-		dso__set_has_build_id(dso);
+		bid.size = bid_len / 2;
+		dso__set_build_id(dso, &bid);
 		return true;
 	}
 	return false;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index e662e1c3a7c6..26186717fe9b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -861,17 +861,24 @@ static int maps__fprintf_task_cb(struct map *map, void *data)
 	struct maps__fprintf_task_args *args = data;
 	const struct dso *dso = map__dso(map);
 	u32 prot = map__prot(map);
+	const struct dso_id *dso_id = dso__id_const(dso);
 	int ret;
+	char buf[SBUILD_ID_SIZE];
+
+	if (dso_id->mmap2_valid)
+		snprintf(buf, sizeof(buf), "%" PRIu64, dso_id->ino);
+	else
+		build_id__snprintf(&dso_id->build_id, buf, sizeof(buf));
 
 	ret = fprintf(args->fp,
-		"%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
+		"%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %s %s\n",
 		args->indent, "", map__start(map), map__end(map),
 		prot & PROT_READ ? 'r' : '-',
 		prot & PROT_WRITE ? 'w' : '-',
 		prot & PROT_EXEC ? 'x' : '-',
 		map__flags(map) ? 's' : 'p',
 		map__pgoff(map),
-		dso__id_const(dso)->ino, dso__name(dso));
+		buf, dso__name(dso));
 
 	if (ret < 0)
 		return ret;
diff --git a/tools/perf/include/perf/perf_dlfilter.h b/tools/perf/include/perf/perf_dlfilter.h
index 16fc4568ac53..2d3540ed3c58 100644
--- a/tools/perf/include/perf/perf_dlfilter.h
+++ b/tools/perf/include/perf/perf_dlfilter.h
@@ -87,7 +87,7 @@ struct perf_dlfilter_al {
 	__u8  is_64_bit; /* Only valid if dso is not NULL */
 	__u8  is_kernel_ip; /* True if in kernel space */
 	__u32 buildid_size;
-	__u8 *buildid;
+	const __u8 *buildid;
 	/* Below members are only populated by resolve_ip() */
 	__u8 filtered; /* True if this sample event will be filtered out */
 	const char *comm;
diff --git a/tools/perf/tests/symbols.c b/tools/perf/tests/symbols.c
index ee20a366f32f..b07fdf831868 100644
--- a/tools/perf/tests/symbols.c
+++ b/tools/perf/tests/symbols.c
@@ -96,8 +96,8 @@ static int create_map(struct test_info *ti, char *filename, struct map **map_p)
 	dso__put(dso);
 
 	/* Create a dummy map at 0x100000 */
-	*map_p = map__new(ti->machine, 0x100000, 0xffffffff, 0, NULL,
-			  PROT_EXEC, 0, NULL, filename, ti->thread);
+	*map_p = map__new(ti->machine, 0x100000, 0xffffffff, 0, &dso_id_empty,
+			  PROT_EXEC, /*flags=*/0, filename, ti->thread);
 	if (!*map_p) {
 		pr_debug("Failed to create map!");
 		return TEST_FAIL;
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 1abd5a670665..e2b295fe4d2f 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -251,7 +251,7 @@ char *__dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
 	if (!dso__has_build_id(dso))
 		return NULL;
 
-	build_id__snprintf(dso__bid_const(dso), sbuild_id, sizeof(sbuild_id));
+	build_id__snprintf(dso__bid(dso), sbuild_id, sizeof(sbuild_id));
 	linkname = build_id_cache__linkname(sbuild_id, NULL, 0);
 	if (!linkname)
 		return NULL;
@@ -334,7 +334,7 @@ static int machine__write_buildid_table_cb(struct dso *dso, void *data)
 	}
 
 	in_kernel = dso__kernel(dso) || is_kernel_module(name, PERF_RECORD_MISC_CPUMODE_UNKNOWN);
-	return write_buildid(name, name_len, dso__bid(dso), args->machine->pid,
+	return write_buildid(name, name_len, &dso__id(dso)->build_id, args->machine->pid,
 			     in_kernel ? args->kmisc : args->umisc, args->fd);
 }
 
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 4ff94029632e..282e3af85d5a 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -217,7 +217,7 @@ int dso__read_binary_type_filename(const struct dso *dso,
 			break;
 		}
 
-		build_id__snprintf(dso__bid_const(dso), build_id_hex, sizeof(build_id_hex));
+		build_id__snprintf(dso__bid(dso), build_id_hex, sizeof(build_id_hex));
 		len = __symbol__join_symfs(filename, size, "/usr/lib/debug/.build-id/");
 		snprintf(filename + len, size - len, "%.2s/%s.debug",
 			 build_id_hex, build_id_hex + 2);
@@ -1382,64 +1382,76 @@ static void dso__set_long_name_id(struct dso *dso, const char *name, bool name_a
 
 static int __dso_id__cmp(const struct dso_id *a, const struct dso_id *b)
 {
-	if (a->maj > b->maj) return -1;
-	if (a->maj < b->maj) return 1;
+	if (a->mmap2_valid && b->mmap2_valid) {
+		if (a->maj > b->maj) return -1;
+		if (a->maj < b->maj) return 1;
 
-	if (a->min > b->min) return -1;
-	if (a->min < b->min) return 1;
+		if (a->min > b->min) return -1;
+		if (a->min < b->min) return 1;
 
-	if (a->ino > b->ino) return -1;
-	if (a->ino < b->ino) return 1;
-
-	/*
-	 * Synthesized MMAP events have zero ino_generation, avoid comparing
-	 * them with MMAP events with actual ino_generation.
-	 *
-	 * I found it harmful because the mismatch resulted in a new
-	 * dso that did not have a build ID whereas the original dso did have a
-	 * build ID. The build ID was essential because the object was not found
-	 * otherwise. - Adrian
-	 */
-	if (a->ino_generation && b->ino_generation) {
+		if (a->ino > b->ino) return -1;
+		if (a->ino < b->ino) return 1;
+	}
+	if (a->mmap2_ino_generation_valid && b->mmap2_ino_generation_valid) {
 		if (a->ino_generation > b->ino_generation) return -1;
 		if (a->ino_generation < b->ino_generation) return 1;
 	}
-
+	if (build_id__is_defined(&a->build_id) && build_id__is_defined(&b->build_id)) {
+		if (a->build_id.size != b->build_id.size)
+			return a->build_id.size < b->build_id.size ? -1 : 1;
+		return memcmp(a->build_id.data, b->build_id.data, a->build_id.size);
+	}
 	return 0;
 }
 
-bool dso_id__empty(const struct dso_id *id)
-{
-	if (!id)
-		return true;
+const struct dso_id dso_id_empty = {
+	{
+		.maj = 0,
+		.min = 0,
+		.ino = 0,
+		.ino_generation = 0,
+	},
+	.mmap2_valid = false,
+	.mmap2_ino_generation_valid = false,
+	{
+		.size = 0,
+	}
+};
 
-	return !id->maj && !id->min && !id->ino && !id->ino_generation;
-}
-
-void __dso__inject_id(struct dso *dso, const struct dso_id *id)
+void __dso__improve_id(struct dso *dso, const struct dso_id *id)
 {
 	struct dsos *dsos = dso__dsos(dso);
 	struct dso_id *dso_id = dso__id(dso);
+	bool changed = false;
 
 	/* dsos write lock held by caller. */
 
-	dso_id->maj = id->maj;
-	dso_id->min = id->min;
-	dso_id->ino = id->ino;
-	dso_id->ino_generation = id->ino_generation;
-
-	if (dsos)
+	if (id->mmap2_valid && !dso_id->mmap2_valid) {
+		dso_id->maj = id->maj;
+		dso_id->min = id->min;
+		dso_id->ino = id->ino;
+		dso_id->mmap2_valid = true;
+		changed = true;
+	}
+	if (id->mmap2_ino_generation_valid && !dso_id->mmap2_ino_generation_valid) {
+		dso_id->ino_generation = id->ino_generation;
+		dso_id->mmap2_ino_generation_valid = true;
+		changed = true;
+	}
+	if (build_id__is_defined(&id->build_id) && !build_id__is_defined(&dso_id->build_id)) {
+		dso_id->build_id = id->build_id;
+		changed = true;
+	}
+	if (changed && dsos)
 		dsos->sorted = false;
 }
 
 int dso_id__cmp(const struct dso_id *a, const struct dso_id *b)
 {
-	/*
-	 * The second is always dso->id, so zeroes if not set, assume passing
-	 * NULL for a means a zeroed id
-	 */
-	if (dso_id__empty(a) || dso_id__empty(b))
+	if (a == &dso_id_empty || b == &dso_id_empty) {
+		/* There is no valid data to compare so the comparison always returns identical. */
 		return 0;
+	}
 
 	return __dso_id__cmp(a, b);
 }
@@ -1540,7 +1552,6 @@ struct dso *dso__new_id(const char *name, const struct dso_id *id)
 		dso->loaded = 0;
 		dso->rel = 0;
 		dso->sorted_by_name = 0;
-		dso->has_build_id = 0;
 		dso->has_srcline = 1;
 		dso->a2l_fails = 1;
 		dso->kernel = DSO_SPACE__USER;
@@ -1649,15 +1660,14 @@ int dso__swap_init(struct dso *dso, unsigned char eidata)
 	return 0;
 }
 
-void dso__set_build_id(struct dso *dso, struct build_id *bid)
+void dso__set_build_id(struct dso *dso, const struct build_id *bid)
 {
-	RC_CHK_ACCESS(dso)->bid = *bid;
-	RC_CHK_ACCESS(dso)->has_build_id = 1;
+	dso__id(dso)->build_id = *bid;
 }
 
-bool dso__build_id_equal(const struct dso *dso, struct build_id *bid)
+bool dso__build_id_equal(const struct dso *dso, const struct build_id *bid)
 {
-	const struct build_id *dso_bid = dso__bid_const(dso);
+	const struct build_id *dso_bid = dso__bid(dso);
 
 	if (dso_bid->size > bid->size && dso_bid->size == BUILD_ID_SIZE) {
 		/*
@@ -1676,18 +1686,20 @@ bool dso__build_id_equal(const struct dso *dso, struct build_id *bid)
 void dso__read_running_kernel_build_id(struct dso *dso, struct machine *machine)
 {
 	char path[PATH_MAX];
+	struct build_id bid = { .size = 0, };
 
 	if (machine__is_default_guest(machine))
 		return;
 	sprintf(path, "%s/sys/kernel/notes", machine->root_dir);
-	if (sysfs__read_build_id(path, dso__bid(dso)) == 0)
-		dso__set_has_build_id(dso);
+	sysfs__read_build_id(path, &bid);
+	dso__set_build_id(dso, &bid);
 }
 
 int dso__kernel_module_get_build_id(struct dso *dso,
 				    const char *root_dir)
 {
 	char filename[PATH_MAX];
+	struct build_id bid = { .size = 0, };
 	/*
 	 * kernel module short names are of the form "[module]" and
 	 * we need just "module" here.
@@ -1698,9 +1710,8 @@ int dso__kernel_module_get_build_id(struct dso *dso,
 		 "%s/sys/module/%.*s/notes/.note.gnu.build-id",
 		 root_dir, (int)strlen(name) - 1, name);
 
-	if (sysfs__read_build_id(filename, dso__bid(dso)) == 0)
-		dso__set_has_build_id(dso);
-
+	sysfs__read_build_id(filename, &bid);
+	dso__set_build_id(dso, &bid);
 	return 0;
 }
 
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index c87564471f9b..3457d713d3c5 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -185,14 +185,33 @@ enum dso_load_errno {
 #define DSO__DATA_CACHE_SIZE 4096
 #define DSO__DATA_CACHE_MASK ~(DSO__DATA_CACHE_SIZE - 1)
 
-/*
- * Data about backing storage DSO, comes from PERF_RECORD_MMAP2 meta events
+/**
+ * struct dso_id
+ *
+ * Data about backing storage DSO, comes from PERF_RECORD_MMAP2 meta events,
+ * reading from /proc/pid/maps or synthesis of build_ids from DSOs. Possibly
+ * incomplete at any particular use.
  */
 struct dso_id {
-	u32	maj;
-	u32	min;
-	u64	ino;
-	u64	ino_generation;
+	/* Data related to the mmap2 event or read from /proc/pid/maps. */
+	struct {
+		u32	maj;
+		u32	min;
+		u64	ino;
+		u64	ino_generation;
+	};
+	/** @mmap2_valid: Are the maj, min and ino fields valid? */
+	bool	mmap2_valid;
+	/**
+	 * @mmap2_ino_generation_valid: Is the ino_generation valid? Generally
+	 * false for /proc/pid/maps mmap event.
+	 */
+	bool	mmap2_ino_generation_valid;
+	/**
+	 * @build_id: A possibly populated build_id. build_id__is_defined checks
+	 * whether it is populated.
+	 */
+	struct build_id build_id;
 };
 
 struct dso_cache {
@@ -243,7 +262,6 @@ DECLARE_RC_STRUCT(dso) {
 		u64		addr;
 		struct symbol	*symbol;
 	} last_find_result;
-	struct build_id	 bid;
 	u64		 text_offset;
 	u64		 text_end;
 	const char	 *short_name;
@@ -276,7 +294,6 @@ DECLARE_RC_STRUCT(dso) {
 	enum dso_swap_type	needs_swap:2;
 	bool			is_kmod:1;
 	u8		 adjust_symbols:1;
-	u8		 has_build_id:1;
 	u8		 header_build_id:1;
 	u8		 has_srcline:1;
 	u8		 hit:1;
@@ -292,6 +309,9 @@ DECLARE_RC_STRUCT(dso) {
 };
 
 extern struct mutex _dso__data_open_lock;
+extern const struct dso_id dso_id_empty;
+
+int dso_id__cmp(const struct dso_id *a, const struct dso_id *b);
 
 /* dso__for_each_symbol - iterate over the symbols of given type
  *
@@ -362,31 +382,11 @@ static inline void dso__set_auxtrace_cache(struct dso *dso, struct auxtrace_cach
 	RC_CHK_ACCESS(dso)->auxtrace_cache = cache;
 }
 
-static inline struct build_id *dso__bid(struct dso *dso)
-{
-	return &RC_CHK_ACCESS(dso)->bid;
-}
-
-static inline const struct build_id *dso__bid_const(const struct dso *dso)
-{
-	return &RC_CHK_ACCESS(dso)->bid;
-}
-
 static inline struct dso_bpf_prog *dso__bpf_prog(struct dso *dso)
 {
 	return &RC_CHK_ACCESS(dso)->bpf_prog;
 }
 
-static inline bool dso__has_build_id(const struct dso *dso)
-{
-	return RC_CHK_ACCESS(dso)->has_build_id;
-}
-
-static inline void dso__set_has_build_id(struct dso *dso)
-{
-	RC_CHK_ACCESS(dso)->has_build_id = true;
-}
-
 static inline bool dso__has_srcline(const struct dso *dso)
 {
 	return RC_CHK_ACCESS(dso)->has_srcline;
@@ -462,6 +462,16 @@ static inline const struct dso_id *dso__id_const(const struct dso *dso)
 	return &RC_CHK_ACCESS(dso)->id;
 }
 
+static inline const struct build_id *dso__bid(const struct dso *dso)
+{
+	return &dso__id_const(dso)->build_id;
+}
+
+static inline bool dso__has_build_id(const struct dso *dso)
+{
+	return build_id__is_defined(dso__bid(dso));
+}
+
 static inline struct rb_root_cached *dso__inlined_nodes(struct dso *dso)
 {
 	return &RC_CHK_ACCESS(dso)->inlined_nodes;
@@ -699,9 +709,6 @@ static inline void dso__set_text_offset(struct dso *dso, u64 val)
 	RC_CHK_ACCESS(dso)->text_offset = val;
 }
 
-int dso_id__cmp(const struct dso_id *a, const struct dso_id *b);
-bool dso_id__empty(const struct dso_id *id);
-
 struct dso *dso__new_id(const char *name, const struct dso_id *id);
 struct dso *dso__new(const char *name);
 void dso__delete(struct dso *dso);
@@ -709,7 +716,7 @@ void dso__delete(struct dso *dso);
 int dso__cmp_id(struct dso *a, struct dso *b);
 void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated);
 void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated);
-void __dso__inject_id(struct dso *dso, const struct dso_id *id);
+void __dso__improve_id(struct dso *dso, const struct dso_id *id);
 
 int dso__name_len(const struct dso *dso);
 
@@ -739,8 +746,8 @@ void dso__sort_by_name(struct dso *dso);
 
 int dso__swap_init(struct dso *dso, unsigned char eidata);
 
-void dso__set_build_id(struct dso *dso, struct build_id *bid);
-bool dso__build_id_equal(const struct dso *dso, struct build_id *bid);
+void dso__set_build_id(struct dso *dso, const struct build_id *bid);
+bool dso__build_id_equal(const struct dso *dso, const struct build_id *bid);
 void dso__read_running_kernel_build_id(struct dso *dso,
 				       struct machine *machine);
 int dso__kernel_module_get_build_id(struct dso *dso, const char *root_dir);
diff --git a/tools/perf/util/dsos.c b/tools/perf/util/dsos.c
index 47538273915d..0a7645c7fae7 100644
--- a/tools/perf/util/dsos.c
+++ b/tools/perf/util/dsos.c
@@ -72,6 +72,7 @@ static int dsos__read_build_ids_cb(struct dso *dso, void *data)
 {
 	struct dsos__read_build_ids_cb_args *args = data;
 	struct nscookie nsc;
+	struct build_id bid = { .size = 0, };
 
 	if (args->with_hits && !dso__hit(dso) && !dso__is_vdso(dso))
 		return 0;
@@ -80,15 +81,15 @@ static int dsos__read_build_ids_cb(struct dso *dso, void *data)
 		return 0;
 	}
 	nsinfo__mountns_enter(dso__nsinfo(dso), &nsc);
-	if (filename__read_build_id(dso__long_name(dso), dso__bid(dso)) > 0) {
+	if (filename__read_build_id(dso__long_name(dso), &bid) > 0) {
+		dso__set_build_id(dso, &bid);
 		args->have_build_id = true;
-		dso__set_has_build_id(dso);
 	} else if (errno == ENOENT && dso__nsinfo(dso)) {
 		char *new_name = dso__filename_with_chroot(dso, dso__long_name(dso));
 
-		if (new_name && filename__read_build_id(new_name, dso__bid(dso)) > 0) {
+		if (new_name && filename__read_build_id(new_name, &bid) > 0) {
+			dso__set_build_id(dso, &bid);
 			args->have_build_id = true;
-			dso__set_has_build_id(dso);
 		}
 		free(new_name);
 	}
@@ -286,7 +287,7 @@ struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
 	struct dso *res;
 
 	down_read(&dsos->lock);
-	res = __dsos__find_id(dsos, name, NULL, cmp_short, /*write_locked=*/false);
+	res = __dsos__find_id(dsos, name, &dso_id_empty, cmp_short, /*write_locked=*/false);
 	up_read(&dsos->lock);
 	return res;
 }
@@ -344,8 +345,8 @@ static struct dso *__dsos__findnew_id(struct dsos *dsos, const char *name, const
 {
 	struct dso *dso = __dsos__find_id(dsos, name, id, false, /*write_locked=*/true);
 
-	if (dso && dso_id__empty(dso__id(dso)) && !dso_id__empty(id))
-		__dso__inject_id(dso, id);
+	if (dso)
+		__dso__improve_id(dso, id);
 
 	return dso ? dso : __dsos__addnew_id(dsos, name, id);
 }
@@ -436,7 +437,8 @@ struct dso *dsos__findnew_module_dso(struct dsos *dsos,
 
 	down_write(&dsos->lock);
 
-	dso = __dsos__find_id(dsos, m->name, NULL, /*cmp_short=*/true, /*write_locked=*/true);
+	dso = __dsos__find_id(dsos, m->name, &dso_id_empty, /*cmp_short=*/true,
+			      /*write_locked=*/true);
 	if (dso) {
 		up_write(&dsos->lock);
 		return dso;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7ec12c207970..2ef8c1cfae1e 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1731,21 +1731,21 @@ int machine__process_mmap2_event(struct machine *machine,
 {
 	struct thread *thread;
 	struct map *map;
-	struct dso_id dso_id = {
-		.maj = event->mmap2.maj,
-		.min = event->mmap2.min,
-		.ino = event->mmap2.ino,
-		.ino_generation = event->mmap2.ino_generation,
-	};
-	struct build_id __bid, *bid = NULL;
+	struct dso_id dso_id = dso_id_empty;
 	int ret = 0;
 
 	if (dump_trace)
 		perf_event__fprintf_mmap2(event, stdout);
 
 	if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
-		bid = &__bid;
-		build_id__init(bid, event->mmap2.build_id, event->mmap2.build_id_size);
+		build_id__init(&dso_id.build_id, event->mmap2.build_id, event->mmap2.build_id_size);
+	} else {
+		dso_id.maj = event->mmap2.maj;
+		dso_id.min = event->mmap2.min;
+		dso_id.ino = event->mmap2.ino;
+		dso_id.ino_generation = event->mmap2.ino_generation;
+		dso_id.mmap2_valid = true;
+		dso_id.mmap2_ino_generation_valid = true;
 	}
 
 	if (sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
@@ -1757,7 +1757,7 @@ int machine__process_mmap2_event(struct machine *machine,
 		};
 
 		strlcpy(xm.name, event->mmap2.filename, KMAP_NAME_LEN);
-		ret = machine__process_kernel_mmap_event(machine, &xm, bid);
+		ret = machine__process_kernel_mmap_event(machine, &xm, &dso_id.build_id);
 		if (ret < 0)
 			goto out_problem;
 		return 0;
@@ -1771,7 +1771,7 @@ int machine__process_mmap2_event(struct machine *machine,
 	map = map__new(machine, event->mmap2.start,
 			event->mmap2.len, event->mmap2.pgoff,
 			&dso_id, event->mmap2.prot,
-			event->mmap2.flags, bid,
+			event->mmap2.flags,
 			event->mmap2.filename, thread);
 
 	if (map == NULL)
@@ -1829,8 +1829,8 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
 		prot = PROT_EXEC;
 
 	map = map__new(machine, event->mmap.start,
-			event->mmap.len, event->mmap.pgoff,
-			NULL, prot, 0, NULL, event->mmap.filename, thread);
+		       event->mmap.len, event->mmap.pgoff,
+		       &dso_id_empty, prot, /*flags=*/0, event->mmap.filename, thread);
 
 	if (map == NULL)
 		goto out_problem_map;
@@ -3192,7 +3192,7 @@ struct dso *machine__findnew_dso_id(struct machine *machine, const char *filenam
 
 struct dso *machine__findnew_dso(struct machine *machine, const char *filename)
 {
-	return machine__findnew_dso_id(machine, filename, NULL);
+	return machine__findnew_dso_id(machine, filename, &dso_id_empty);
 }
 
 char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 0f6b185f9589..b46c68c24d1c 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -120,8 +120,8 @@ static void map__init(struct map *map, u64 start, u64 end, u64 pgoff,
 }
 
 struct map *map__new(struct machine *machine, u64 start, u64 len,
-		     u64 pgoff, struct dso_id *id,
-		     u32 prot, u32 flags, struct build_id *bid,
+		     u64 pgoff, const struct dso_id *id,
+		     u32 prot, u32 flags,
 		     char *filename, struct thread *thread)
 {
 	struct map *result;
@@ -132,7 +132,7 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 	map = zalloc(sizeof(*map));
 	if (ADD_RC_CHK(result, map)) {
 		char newfilename[PATH_MAX];
-		struct dso *dso, *header_bid_dso;
+		struct dso *dso;
 		int anon, no_dso, vdso, android;
 
 		android = is_android_lib(filename);
@@ -189,16 +189,15 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 		dso__set_nsinfo(dso, nsi);
 		mutex_unlock(dso__lock(dso));
 
-		if (build_id__is_defined(bid)) {
-			dso__set_build_id(dso, bid);
-		} else {
+		if (!build_id__is_defined(&id->build_id)) {
 			/*
 			 * If the mmap event had no build ID, search for an existing dso from the
 			 * build ID header by name. Otherwise only the dso loaded at the time of
 			 * reading the header will have the build ID set and all future mmaps will
 			 * have it missing.
 			 */
-			header_bid_dso = dsos__find(&machine->dsos, filename, false);
+			struct dso *header_bid_dso = dsos__find(&machine->dsos, filename, false);
+
 			if (header_bid_dso && dso__header_build_id(header_bid_dso)) {
 				dso__set_build_id(dso, dso__bid(header_bid_dso));
 				dso__set_header_build_id(dso, 1);
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 4262f5a143be..9cadf533a561 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -173,11 +173,10 @@ struct thread;
 	__map__for_each_symbol_by_name(map, sym_name, (pos), idx)
 
 struct dso_id;
-struct build_id;
 
 struct map *map__new(struct machine *machine, u64 start, u64 len,
-		     u64 pgoff, struct dso_id *id, u32 prot, u32 flags,
-		     struct build_id *bid, char *filename, struct thread *thread);
+		     u64 pgoff, const struct dso_id *id, u32 prot, u32 flags,
+		     char *filename, struct thread *thread);
 struct map *map__new2(u64 start, struct dso *dso);
 void map__delete(struct map *map);
 struct map *map__clone(struct map *map);
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 45e654653960..7969d64a47bf 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1746,22 +1746,27 @@ sort__dcacheline_cmp(struct hist_entry *left, struct hist_entry *right)
 	if (rc)
 		return rc;
 	/*
-	 * Addresses with no major/minor numbers are assumed to be
+	 * Addresses with no major/minor numbers or build ID are assumed to be
 	 * anonymous in userspace.  Sort those on pid then address.
 	 *
 	 * The kernel and non-zero major/minor mapped areas are
 	 * assumed to be unity mapped.  Sort those on address.
 	 */
+	if (left->cpumode != PERF_RECORD_MISC_KERNEL && (map__flags(l_map) & MAP_SHARED) == 0) {
+		const struct dso_id *dso_id = dso__id_const(l_dso);
 
-	if ((left->cpumode != PERF_RECORD_MISC_KERNEL) &&
-	    (!(map__flags(l_map) & MAP_SHARED)) && !dso__id(l_dso)->maj && !dso__id(l_dso)->min &&
-	     !dso__id(l_dso)->ino && !dso__id(l_dso)->ino_generation) {
-		/* userspace anonymous */
+		if (!dso_id->mmap2_valid)
+			dso_id = dso__id_const(r_dso);
 
-		if (thread__pid(left->thread) > thread__pid(right->thread))
-			return -1;
-		if (thread__pid(left->thread) < thread__pid(right->thread))
-			return 1;
+		if (!build_id__is_defined(&dso_id->build_id) &&
+		    (!dso_id->mmap2_valid || (dso_id->maj == 0 && dso_id->min == 0))) {
+			/* userspace anonymous */
+
+			if (thread__pid(left->thread) > thread__pid(right->thread))
+				return -1;
+			if (thread__pid(left->thread) < thread__pid(right->thread))
+				return 1;
+		}
 	}
 
 addr:
@@ -1786,6 +1791,7 @@ static int hist_entry__dcacheline_snprintf(struct hist_entry *he, char *bf,
 	if (he->mem_info) {
 		struct map *map = mem_info__daddr(he->mem_info)->ms.map;
 		struct dso *dso = map ? map__dso(map) : NULL;
+		const struct dso_id *dso_id = dso ? dso__id_const(dso) : &dso_id_empty;
 
 		addr = cl_address(mem_info__daddr(he->mem_info)->al_addr, chk_double_cl);
 		ms = &mem_info__daddr(he->mem_info)->ms;
@@ -1794,8 +1800,7 @@ static int hist_entry__dcacheline_snprintf(struct hist_entry *he, char *bf,
 		if ((he->cpumode != PERF_RECORD_MISC_KERNEL) &&
 		     map && !(map__prot(map) & PROT_EXEC) &&
 		     (map__flags(map) & MAP_SHARED) &&
-		     (dso__id(dso)->maj || dso__id(dso)->min || dso__id(dso)->ino ||
-		      dso__id(dso)->ino_generation))
+		     (!dso_id->mmap2_valid || (dso_id->maj == 0 && dso_id->min == 0)))
 			level = 's';
 		else if (!map)
 			level = 'X';
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index d6f9a4548c92..3b1240c82b30 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -372,7 +372,7 @@ static void perf_record_mmap2__read_build_id(struct perf_record_mmap2 *event,
 	struct nsinfo *nsi;
 	struct nscookie nc;
 	struct dso *dso = NULL;
-	struct dso_id id;
+	struct dso_id dso_id = dso_id_empty;
 	int rc;
 
 	if (is_kernel) {
@@ -380,12 +380,18 @@ static void perf_record_mmap2__read_build_id(struct perf_record_mmap2 *event,
 		goto out;
 	}
 
-	id.maj = event->maj;
-	id.min = event->min;
-	id.ino = event->ino;
-	id.ino_generation = event->ino_generation;
+	if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
+		build_id__init(&dso_id.build_id, event->build_id, event->build_id_size);
+	} else {
+		dso_id.maj = event->maj;
+		dso_id.min = event->min;
+		dso_id.ino = event->ino;
+		dso_id.ino_generation = event->ino_generation;
+		dso_id.mmap2_valid = true;
+		dso_id.mmap2_ino_generation_valid = true;
+	};
 
-	dso = dsos__findnew_id(&machine->dsos, event->filename, &id);
+	dso = dsos__findnew_id(&machine->dsos, event->filename, &dso_id);
 	if (dso && dso__has_build_id(dso)) {
 		bid = *dso__bid(dso);
 		rc = 0;

From 5b11409b924631745eef60a65218ffa496acafd6 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:47 -0700
Subject: [PATCH 153/179] perf jitdump: Directly mark the jitdump DSO

The DSO being generated was being accessed through a thread's maps,
this is unnecessary as the dso can just be directly found. This avoids
problems with passing a NULL evsel which may be inspected to determine
properties of a callchain when using the buildid DSO marking code.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/jitdump.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index 624964f01b5f..b062b1f234b6 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -14,9 +14,9 @@
 #include <sys/mman.h>
 #include <linux/stringify.h>
 
-#include "build-id.h"
 #include "event.h"
 #include "debug.h"
+#include "dso.h"
 #include "evlist.h"
 #include "namespaces.h"
 #include "symbol.h"
@@ -531,9 +531,22 @@ static int jit_repipe_code_load(struct jit_buf_desc *jd, union jr_entry *jr)
 	/*
 	 * mark dso as use to generate buildid in the header
 	 */
-	if (!ret)
-		build_id__mark_dso_hit(tool, event, &sample, NULL, jd->machine);
+	if (!ret) {
+		struct dso_id dso_id = {
+			{
+				.maj = event->mmap2.maj,
+				.min = event->mmap2.min,
+				.ino = event->mmap2.ino,
+				.ino_generation = event->mmap2.ino_generation,
+			},
+			.mmap2_valid = true,
+			.mmap2_ino_generation_valid = true,
+		};
+		struct dso *dso = machine__findnew_dso_id(jd->machine, filename, &dso_id);
 
+		if (dso)
+			dso__set_hit(dso);
+	}
 out:
 	perf_sample__exit(&sample);
 	free(event);

From 53b00ff358dc75b12042b2b2aaf1d0e998fd0075 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:48 -0700
Subject: [PATCH 154/179] perf record: Make --buildid-mmap the default

Support for build IDs in mmap2 perf events has been present since
Linux v5.12:
https://lore.kernel.org/lkml/20210219194619.1780437-1-acme@kernel.org/
Build ID mmap events don't avoid the need to inject build IDs for DSO
touched by samples as the build ID cache is populated by perf
record. They can avoid some cases of symbol mis-resolution caused by
the file system changing from when a sample occurred and when the DSO
is sought.

Unlike the --buildid-mmap option, this chnage doesn't disable the
build ID cache but it does disable the processing of samples looking
for DSOs to inject build IDs for. To disable the build ID cache the -B
(--no-buildid) option should be used.

Making this option the default was raised on the list in:
https://lore.kernel.org/linux-perf-users/CAP-5=fXP7jN_QrGUcd55_QH5J-Y-FCaJ6=NaHVtyx0oyNh8_-Q@mail.gmail.com/

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/Documentation/perf-record.txt |  4 ++-
 tools/perf/builtin-record.c              | 34 +++++++++++++++---------
 tools/perf/util/symbol_conf.h            |  2 +-
 tools/perf/util/synthetic-events.c       | 16 +++++------
 4 files changed, 34 insertions(+), 22 deletions(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 612612fa2d80..067891bd7da6 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -563,7 +563,9 @@ Specify vmlinux path which has debuginfo.
 Record build-id of all DSOs regardless whether it's actually hit or not.
 
 --buildid-mmap::
-Record build ids in mmap2 events, disables build id cache (implies --no-buildid).
+Legacy record build-id in map events option which is now the
+default. Behaves indentically to --no-buildid. Disable with
+--no-buildid-mmap.
 
 --aio[=n]::
 Use <n> control blocks in asynchronous (Posix AIO) trace writing mode (default: 1, max: 4).
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 53971b9de3ba..a59c4e15575c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -171,6 +171,7 @@ struct record {
 	bool			no_buildid_cache_set;
 	bool			buildid_all;
 	bool			buildid_mmap;
+	bool			buildid_mmap_set;
 	bool			timestamp_filename;
 	bool			timestamp_boundary;
 	bool			off_cpu;
@@ -1811,6 +1812,7 @@ record__finish_output(struct record *rec)
 			data->dir.files[i].size = lseek(data->dir.files[i].fd, 0, SEEK_CUR);
 	}
 
+	/* Buildid scanning disabled or build ID in kernel and synthesized map events. */
 	if (!rec->no_buildid) {
 		process_buildids(rec);
 
@@ -3005,6 +3007,8 @@ static int perf_record_config(const char *var, const char *value, void *cb)
 			rec->no_buildid = true;
 		else if (!strcmp(value, "mmap"))
 			rec->buildid_mmap = true;
+		else if (!strcmp(value, "no-mmap"))
+			rec->buildid_mmap = false;
 		else
 			return -1;
 		return 0;
@@ -3411,6 +3415,7 @@ static struct record record = {
 		.synth               = PERF_SYNTH_ALL,
 		.off_cpu_thresh_ns   = OFFCPU_THRESH,
 	},
+	.buildid_mmap = true,
 };
 
 const char record_callchain_help[] = CALLCHAIN_RECORD_HELP
@@ -3577,8 +3582,8 @@ static struct option __record_options[] = {
 		   "file", "vmlinux pathname"),
 	OPT_BOOLEAN(0, "buildid-all", &record.buildid_all,
 		    "Record build-id of all DSOs regardless of hits"),
-	OPT_BOOLEAN(0, "buildid-mmap", &record.buildid_mmap,
-		    "Record build-id in map events"),
+	OPT_BOOLEAN_SET(0, "buildid-mmap", &record.buildid_mmap, &record.buildid_mmap_set,
+			"Record build-id in mmap events and skip build-id processing."),
 	OPT_BOOLEAN(0, "timestamp-filename", &record.timestamp_filename,
 		    "append timestamp to output filename"),
 	OPT_BOOLEAN(0, "timestamp-boundary", &record.timestamp_boundary,
@@ -4108,19 +4113,24 @@ int cmd_record(int argc, const char **argv)
 		record.opts.record_switch_events = true;
 	}
 
+	if (!rec->buildid_mmap) {
+		pr_debug("Disabling build id in synthesized mmap2 events.\n");
+		symbol_conf.no_buildid_mmap2 = true;
+	} else if (rec->buildid_mmap_set) {
+		/*
+		 * Explicitly passing --buildid-mmap disables buildid processing
+		 * and cache generation.
+		 */
+		rec->no_buildid = true;
+	}
+	if (rec->buildid_mmap && !perf_can_record_build_id()) {
+		pr_warning("Missing support for build id in kernel mmap events.\n"
+			   "Disable this warning with --no-buildid-mmap\n");
+		rec->buildid_mmap = false;
+	}
 	if (rec->buildid_mmap) {
-		if (!perf_can_record_build_id()) {
-			pr_err("Failed: no support to record build id in mmap events, update your kernel.\n");
-			err = -EINVAL;
-			goto out_opts;
-		}
-		pr_debug("Enabling build id in mmap2 events.\n");
-		/* Enable mmap build id synthesizing. */
-		symbol_conf.buildid_mmap2 = true;
 		/* Enable perf_event_attr::build_id bit. */
 		rec->opts.build_id = true;
-		/* Disable build id cache. */
-		rec->no_buildid = true;
 	}
 
 	if (rec->opts.record_cgroup && !perf_can_record_cgroup()) {
diff --git a/tools/perf/util/symbol_conf.h b/tools/perf/util/symbol_conf.h
index cd9aa82c7d5a..7a80d2c14d9b 100644
--- a/tools/perf/util/symbol_conf.h
+++ b/tools/perf/util/symbol_conf.h
@@ -43,7 +43,7 @@ struct symbol_conf {
 			report_individual_block,
 			inline_name,
 			disable_add2line_warn,
-			buildid_mmap2,
+			no_buildid_mmap2,
 			guest_code,
 			lazy_load_kernel_maps,
 			keep_exited_threads,
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index 3b1240c82b30..e7ca3f5eb493 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -532,7 +532,7 @@ int perf_event__synthesize_mmap_events(const struct perf_tool *tool,
 		event->mmap2.pid = tgid;
 		event->mmap2.tid = pid;
 
-		if (symbol_conf.buildid_mmap2)
+		if (!symbol_conf.no_buildid_mmap2)
 			perf_record_mmap2__read_build_id(&event->mmap2, machine, false);
 
 		if (perf_tool__process_synth_event(tool, event, machine, process) != 0) {
@@ -690,7 +690,7 @@ static int perf_event__synthesize_modules_maps_cb(struct map *map, void *data)
 		return 0;
 
 	dso = map__dso(map);
-	if (symbol_conf.buildid_mmap2) {
+	if (!symbol_conf.no_buildid_mmap2) {
 		size = PERF_ALIGN(dso__long_name_len(dso) + 1, sizeof(u64));
 		event->mmap2.header.type = PERF_RECORD_MMAP2;
 		event->mmap2.header.size = (sizeof(event->mmap2) -
@@ -734,9 +734,9 @@ int perf_event__synthesize_modules(const struct perf_tool *tool, perf_event__han
 		.process = process,
 		.machine = machine,
 	};
-	size_t size = symbol_conf.buildid_mmap2
-		? sizeof(args.event->mmap2)
-		: sizeof(args.event->mmap);
+	size_t size = symbol_conf.no_buildid_mmap2
+		? sizeof(args.event->mmap)
+		: sizeof(args.event->mmap2);
 
 	args.event = zalloc(size + machine->id_hdr_size);
 	if (args.event == NULL) {
@@ -1124,8 +1124,8 @@ static int __perf_event__synthesize_kernel_mmap(const struct perf_tool *tool,
 						struct machine *machine)
 {
 	union perf_event *event;
-	size_t size = symbol_conf.buildid_mmap2 ?
-			sizeof(event->mmap2) : sizeof(event->mmap);
+	size_t size = symbol_conf.no_buildid_mmap2 ?
+			sizeof(event->mmap) : sizeof(event->mmap2);
 	struct map *map = machine__kernel_map(machine);
 	struct kmap *kmap;
 	int err;
@@ -1159,7 +1159,7 @@ static int __perf_event__synthesize_kernel_mmap(const struct perf_tool *tool,
 		event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL;
 	}
 
-	if (symbol_conf.buildid_mmap2) {
+	if (!symbol_conf.no_buildid_mmap2) {
 		size = snprintf(event->mmap2.filename, sizeof(event->mmap2.filename),
 				"%s%s", machine->mmap_name, kmap->ref_reloc_sym->name) + 1;
 		size = PERF_ALIGN(size, sizeof(u64));

From c3e5b9ec96dee864c2d6b00fbfe52e784f0d7bee Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:49 -0700
Subject: [PATCH 155/179] perf session: Add accessor for session->header.env

The perf_env from the header in the session is frequently accessed,
add an accessor function rather than access directly. Cache the value
to avoid repeated calls. No behavioral change.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-10-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-annotate.c       |  4 +--
 tools/perf/builtin-buildid-cache.c  |  2 +-
 tools/perf/builtin-c2c.c            | 16 ++++++------
 tools/perf/builtin-inject.c         |  2 +-
 tools/perf/builtin-kmem.c           |  2 +-
 tools/perf/builtin-kvm.c            |  4 +--
 tools/perf/builtin-kwork.c          |  2 +-
 tools/perf/builtin-lock.c           |  4 +--
 tools/perf/builtin-mem.c            |  2 +-
 tools/perf/builtin-record.c         | 22 +++++++++--------
 tools/perf/builtin-report.c         |  8 +++---
 tools/perf/builtin-sched.c          |  8 +++---
 tools/perf/builtin-script.c         | 14 ++++++-----
 tools/perf/builtin-stat.c           | 23 ++++++++---------
 tools/perf/builtin-timechart.c      |  2 +-
 tools/perf/builtin-top.c            |  5 ++--
 tools/perf/builtin-trace.c          |  2 +-
 tools/perf/tests/topology.c         | 38 +++++++++++++----------------
 tools/perf/util/bpf-event.c         |  2 +-
 tools/perf/util/branch.c            |  2 +-
 tools/perf/util/data-convert-bt.c   | 16 ++++++------
 tools/perf/util/data-convert-json.c | 36 +++++++++++++--------------
 tools/perf/util/session.c           |  7 +++++-
 tools/perf/util/session.h           |  2 ++
 tools/perf/util/tool.c              |  2 +-
 25 files changed, 120 insertions(+), 107 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 9833c2c82a2f..326593862998 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -562,7 +562,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
 	}
 
 	if (!annotate_opts.objdump_path) {
-		ret = perf_env__lookup_objdump(&session->header.env,
+		ret = perf_env__lookup_objdump(perf_session__env(session),
 					       &annotate_opts.objdump_path);
 		if (ret)
 			goto out;
@@ -896,7 +896,7 @@ int cmd_annotate(int argc, const char **argv)
 
 	symbol_conf.try_vmlinux_path = true;
 
-	ret = symbol__init(&annotate.session->header.env);
+	ret = symbol__init(perf_session__env(annotate.session));
 	if (ret < 0)
 		goto out_delete;
 
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index e936a34b7d37..c98104481c8a 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -453,7 +453,7 @@ int cmd_buildid_cache(int argc, const char **argv)
 			return PTR_ERR(session);
 	}
 
-	if (symbol__init(session ? &session->header.env : NULL) < 0)
+	if (symbol__init(session ? perf_session__env(session) : NULL) < 0)
 		goto out;
 
 	setup_pager();
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index e2e257bcc461..8cb36d9433f8 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -2267,14 +2267,15 @@ static int setup_nodes(struct perf_session *session)
 	int node, idx;
 	struct perf_cpu cpu;
 	int *cpu2node;
+	struct perf_env *env = perf_session__env(session);
 
 	if (c2c.node_info > 2)
 		c2c.node_info = 2;
 
-	c2c.nodes_cnt = session->header.env.nr_numa_nodes;
-	c2c.cpus_cnt  = session->header.env.nr_cpus_avail;
+	c2c.nodes_cnt = env->nr_numa_nodes;
+	c2c.cpus_cnt  = env->nr_cpus_avail;
 
-	n = session->header.env.numa_nodes;
+	n = env->numa_nodes;
 	if (!n)
 		return -EINVAL;
 
@@ -3030,6 +3031,7 @@ static int perf_c2c__report(int argc, const char **argv)
 	};
 	int err = 0;
 	const char *output_str, *sort_str = NULL;
+	struct perf_env *env;
 
 	argc = parse_options(argc, argv, options, report_c2c_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
@@ -3072,14 +3074,14 @@ static int perf_c2c__report(int argc, const char **argv)
 		pr_debug("Error creating perf session\n");
 		goto out;
 	}
-
+	env = perf_session__env(session);
 	/*
 	 * Use the 'tot' as default display type if user doesn't specify it;
 	 * since Arm64 platform doesn't support HITMs flag, use 'peer' as the
 	 * default display type.
 	 */
 	if (!display) {
-		if (!strcmp(perf_env__arch(&session->header.env), "arm64"))
+		if (!strcmp(perf_env__arch(env), "arm64"))
 			display = "peer";
 		else
 			display = "tot";
@@ -3109,7 +3111,7 @@ static int perf_c2c__report(int argc, const char **argv)
 		goto out_session;
 	}
 
-	err = mem2node__init(&c2c.mem2node, &session->header.env);
+	err = mem2node__init(&c2c.mem2node, env);
 	if (err)
 		goto out_session;
 
@@ -3117,7 +3119,7 @@ static int perf_c2c__report(int argc, const char **argv)
 	if (err)
 		goto out_mem2node;
 
-	if (symbol__init(&session->header.env) < 0)
+	if (symbol__init(env) < 0)
 		goto out_mem2node;
 
 	/* No pipe support at the moment. */
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 13bbb493141f..f73350a3417a 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -2608,7 +2608,7 @@ int cmd_inject(int argc, const char **argv)
 		inject.tool.finished_round = perf_event__drop_oe;
 	}
 #endif
-	ret = symbol__init(&inject.session->header.env);
+	ret = symbol__init(perf_session__env(inject.session));
 	if (ret < 0)
 		goto out_delete;
 
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 67fb1946ef13..7929a5fa5f46 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -2024,7 +2024,7 @@ int cmd_kmem(int argc, const char **argv)
 		symbol_conf.use_callchain = true;
 	}
 
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	if (perf_time__parse_str(&ptime, time_str) != 0) {
 		pr_err("Invalid time string\n");
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index d75bd3684980..7b15b4a705e4 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1175,7 +1175,7 @@ static int cpu_isa_config(struct perf_kvm_stat *kvm)
 		}
 		cpuid = buf;
 	} else
-		cpuid = kvm->session->header.env.cpuid;
+		cpuid = perf_session__env(kvm->session)->cpuid;
 
 	if (!cpuid) {
 		pr_err("Failed to look up CPU type\n");
@@ -1561,7 +1561,7 @@ static int read_events(struct perf_kvm_stat *kvm)
 		return PTR_ERR(kvm->session);
 	}
 
-	symbol__init(&kvm->session->header.env);
+	symbol__init(perf_session__env(kvm->session));
 
 	if (!perf_session__has_traces(kvm->session, "kvm record")) {
 		ret = -EINVAL;
diff --git a/tools/perf/builtin-kwork.c b/tools/perf/builtin-kwork.c
index c41a68d073de..d2e08de5976d 100644
--- a/tools/perf/builtin-kwork.c
+++ b/tools/perf/builtin-kwork.c
@@ -1804,7 +1804,7 @@ static int perf_kwork__read_events(struct perf_kwork *kwork)
 		return PTR_ERR(session);
 	}
 
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	if (perf_kwork__check_config(kwork, session) != 0)
 		goto out_delete;
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 3b3ade7a39ca..fd49703021fd 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -1876,7 +1876,7 @@ static int __cmd_report(bool display_info)
 	}
 
 	symbol_conf.allow_aliases = true;
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	if (!data.is_pipe) {
 		if (!perf_session__has_traces(session, "lock record"))
@@ -2042,7 +2042,7 @@ static int __cmd_contention(int argc, const char **argv)
 		con.save_callstack = true;
 
 	symbol_conf.allow_aliases = true;
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	if (use_bpf) {
 		err = target__validate(&target);
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 5ec83cd85650..c6496adff3fe 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -304,7 +304,7 @@ static int report_raw_events(struct perf_mem *mem)
 			goto out_delete;
 	}
 
-	ret = symbol__init(&session->header.env);
+	ret = symbol__init(perf_session__env(session));
 	if (ret < 0)
 		goto out_delete;
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index a59c4e15575c..8a829ddff6f2 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2203,7 +2203,7 @@ static int record__setup_sb_evlist(struct record *rec)
 			}
 		}
 
-		if (evlist__add_bpf_sb_event(rec->sb_evlist, &rec->session->header.env)) {
+		if (evlist__add_bpf_sb_event(rec->sb_evlist, perf_session__env(rec->session))) {
 			pr_err("Couldn't ask for PERF_RECORD_BPF_EVENT side band events.\n.");
 			return -1;
 		}
@@ -2222,15 +2222,16 @@ static int record__init_clock(struct record *rec)
 	struct perf_session *session = rec->session;
 	struct timespec ref_clockid;
 	struct timeval ref_tod;
+	struct perf_env *env = perf_session__env(session);
 	u64 ref;
 
 	if (!rec->opts.use_clockid)
 		return 0;
 
 	if (rec->opts.use_clockid && rec->opts.clockid_res_ns)
-		session->header.env.clock.clockid_res_ns = rec->opts.clockid_res_ns;
+		env->clock.clockid_res_ns = rec->opts.clockid_res_ns;
 
-	session->header.env.clock.clockid = rec->opts.clockid;
+	env->clock.clockid = rec->opts.clockid;
 
 	if (gettimeofday(&ref_tod, NULL) != 0) {
 		pr_err("gettimeofday failed, cannot set reference time.\n");
@@ -2245,12 +2246,12 @@ static int record__init_clock(struct record *rec)
 	ref = (u64) ref_tod.tv_sec * NSEC_PER_SEC +
 	      (u64) ref_tod.tv_usec * NSEC_PER_USEC;
 
-	session->header.env.clock.tod_ns = ref;
+	env->clock.tod_ns = ref;
 
 	ref = (u64) ref_clockid.tv_sec * NSEC_PER_SEC +
 	      (u64) ref_clockid.tv_nsec;
 
-	session->header.env.clock.clockid_ns = ref;
+	env->clock.clockid_ns = ref;
 	return 0;
 }
 
@@ -2396,6 +2397,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	int fd;
 	float ratio = 0;
 	enum evlist_ctl_cmd cmd = EVLIST_CTL_CMD_UNSUPPORTED;
+	struct perf_env *env;
 
 	atexit(record__sig_exit);
 	signal(SIGCHLD, sig_handler);
@@ -2437,7 +2439,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 		pr_err("Perf session creation failed.\n");
 		return PTR_ERR(session);
 	}
-
+	env = perf_session__env(session);
 	if (record__threads_enabled(rec)) {
 		if (perf_data__is_pipe(&rec->data)) {
 			pr_err("Parallel trace streaming is not available in pipe mode.\n");
@@ -2471,8 +2473,8 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	}
 #endif // HAVE_EVENTFD_SUPPORT
 
-	session->header.env.comp_type  = PERF_COMP_ZSTD;
-	session->header.env.comp_level = rec->opts.comp_level;
+	env->comp_type  = PERF_COMP_ZSTD;
+	env->comp_level = rec->opts.comp_level;
 
 	if (rec->opts.kcore &&
 	    !record__kcore_readable(&session->machines.host)) {
@@ -2525,7 +2527,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	}
 	/* Debug message used by test scripts */
 	pr_debug3("perf record done opening and mmapping events\n");
-	session->header.env.comp_mmap_len = session->evlist->core.mmap_len;
+	env->comp_mmap_len = session->evlist->core.mmap_len;
 
 	if (rec->opts.kcore) {
 		err = record__kcore_copy(&session->machines.host, data);
@@ -2855,7 +2857,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 
 	if (rec->session->bytes_transferred && rec->session->bytes_compressed) {
 		ratio = (float)rec->session->bytes_transferred/(float)rec->session->bytes_compressed;
-		session->header.env.comp_ratio = ratio + 0.5;
+		env->comp_ratio = ratio + 0.5;
 	}
 
 	if (forks) {
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 26186717fe9b..704576e46e4b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -447,7 +447,7 @@ static int report__setup_sample_type(struct report *rep)
 		}
 	}
 
-	callchain_param_setup(sample_type, perf_env__arch(&rep->session->header.env));
+	callchain_param_setup(sample_type, perf_env__arch(perf_session__env(rep->session)));
 
 	if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
 		ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
@@ -550,7 +550,7 @@ static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *
 	evlist__for_each_entry(evlist, pos) {
 		ret = report__browse_block_hists(&rep->block_reports[i++].hist,
 						 rep->min_percent, pos,
-						 &rep->session->header.env);
+						 perf_session__env(rep->session));
 		if (ret != 0)
 			return ret;
 	}
@@ -685,7 +685,7 @@ static int report__browse_hists(struct report *rep)
 		}
 
 		ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent,
-					       &session->header.env, true);
+					       perf_session__env(session), true);
 		/*
 		 * Usually "ret" is the last pressed key, and we only
 		 * care if the key notifies us to switch data file.
@@ -1842,7 +1842,7 @@ int cmd_report(int argc, const char **argv)
 		annotation_config__init();
 	}
 
-	if (symbol__init(&session->header.env) < 0)
+	if (symbol__init(perf_session__env(session)) < 0)
 		goto error;
 
 	if (report.time_str) {
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 34051ad23493..f166d6cbc083 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1939,7 +1939,7 @@ static int perf_sched__read_events(struct perf_sched *sched)
 		return PTR_ERR(session);
 	}
 
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	/* prefer sched_waking if it is captured */
 	if (evlist__find_tracepoint_by_name(session->evlist, "sched:sched_waking"))
@@ -3294,6 +3294,7 @@ static int perf_sched__timehist(struct perf_sched *sched)
 	};
 
 	struct perf_session *session;
+	struct perf_env *env;
 	struct evlist *evlist;
 	int err = -1;
 
@@ -3318,6 +3319,7 @@ static int perf_sched__timehist(struct perf_sched *sched)
 	if (IS_ERR(session))
 		return PTR_ERR(session);
 
+	env = perf_session__env(session);
 	if (cpu_list) {
 		err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
 		if (err < 0)
@@ -3326,7 +3328,7 @@ static int perf_sched__timehist(struct perf_sched *sched)
 
 	evlist = session->evlist;
 
-	symbol__init(&session->header.env);
+	symbol__init(env);
 
 	if (perf_time__parse_str(&sched->ptime, sched->time_str) != 0) {
 		pr_err("Invalid time string\n");
@@ -3365,7 +3367,7 @@ static int perf_sched__timehist(struct perf_sched *sched)
 		goto out;
 
 	/* pre-allocate struct for per-CPU idle stats */
-	sched->max_cpu.cpu = session->header.env.nr_cpus_online;
+	sched->max_cpu.cpu = env->nr_cpus_online;
 	if (sched->max_cpu.cpu == 0)
 		sched->max_cpu.cpu = 4;
 	if (init_idle_threads(sched->max_cpu.cpu))
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 271f22962e32..31cce67217b0 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -714,7 +714,7 @@ static int perf_session__check_output_opt(struct perf_session *session)
 		}
 	}
 
-	if (tod && !session->header.env.clock.enabled) {
+	if (tod && !perf_session__env(session)->clock.enabled) {
 		pr_err("Can't provide 'tod' time, missing clock data. "
 		       "Please record with -k/--clockid option.\n");
 		return -1;
@@ -759,7 +759,7 @@ tod_scnprintf(struct perf_script *script, char *buf, int buflen,
 	if (buflen < 64 || !script)
 		return buf;
 
-	env = &script->session->header.env;
+	env = perf_session__env(script->session);
 	if (!env->clock.enabled) {
 		scnprintf(buf, buflen, "disabled");
 		return buf;
@@ -3863,6 +3863,7 @@ int cmd_script(int argc, const char **argv)
 		"perf script [<options>] <top-script> [script-args]",
 		NULL
 	};
+	struct perf_env *env;
 
 	perf_set_singlethreaded();
 
@@ -4109,6 +4110,7 @@ int cmd_script(int argc, const char **argv)
 	if (IS_ERR(session))
 		return PTR_ERR(session);
 
+	env = perf_session__env(session);
 	if (header || header_only) {
 		script.tool.show_feat_hdr = SHOW_FEAT_HEADER;
 		perf_session__fprintf_info(session, stdout, show_full_info);
@@ -4118,17 +4120,17 @@ int cmd_script(int argc, const char **argv)
 	if (show_full_info)
 		script.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
 
-	if (symbol__init(&session->header.env) < 0)
+	if (symbol__init(env) < 0)
 		goto out_delete;
 
 	uname(&uts);
 	if (data.is_pipe) { /* Assume pipe_mode indicates native_arch */
 		native_arch = true;
-	} else if (session->header.env.arch) {
-		if (!strcmp(uts.machine, session->header.env.arch))
+	} else if (env->arch) {
+		if (!strcmp(uts.machine, env->arch))
 			native_arch = true;
 		else if (!strcmp(uts.machine, "x86_64") &&
-			 !strcmp(session->header.env.arch, "i386"))
+			 !strcmp(env->arch, "i386"))
 			native_arch = true;
 	}
 
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 00fce828cd5e..2c38dd98f6ca 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1689,48 +1689,48 @@ static struct aggr_cpu_id perf_env__get_global_aggr_by_cpu(struct perf_cpu cpu _
 static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
 						     struct perf_cpu cpu)
 {
-	return perf_env__get_socket_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_socket_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 static struct aggr_cpu_id perf_stat__get_die_file(struct perf_stat_config *config __maybe_unused,
 						  struct perf_cpu cpu)
 {
-	return perf_env__get_die_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_die_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_cluster_file(struct perf_stat_config *config __maybe_unused,
 						      struct perf_cpu cpu)
 {
-	return perf_env__get_cluster_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_cluster_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_cache_file(struct perf_stat_config *config __maybe_unused,
 						    struct perf_cpu cpu)
 {
-	return perf_env__get_cache_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_cache_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_core_file(struct perf_stat_config *config __maybe_unused,
 						   struct perf_cpu cpu)
 {
-	return perf_env__get_core_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_core_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_cpu_file(struct perf_stat_config *config __maybe_unused,
 						  struct perf_cpu cpu)
 {
-	return perf_env__get_cpu_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_cpu_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_node_file(struct perf_stat_config *config __maybe_unused,
 						   struct perf_cpu cpu)
 {
-	return perf_env__get_node_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_node_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static struct aggr_cpu_id perf_stat__get_global_file(struct perf_stat_config *config __maybe_unused,
 						     struct perf_cpu cpu)
 {
-	return perf_env__get_global_aggr_by_cpu(cpu, &perf_stat.session->header.env);
+	return perf_env__get_global_aggr_by_cpu(cpu, perf_session__env(perf_stat.session));
 }
 
 static aggr_cpu_id_get_t aggr_mode__get_aggr_file(enum aggr_mode aggr_mode)
@@ -1789,7 +1789,7 @@ static aggr_get_id_t aggr_mode__get_id_file(enum aggr_mode aggr_mode)
 
 static int perf_stat_init_aggr_mode_file(struct perf_stat *st)
 {
-	struct perf_env *env = &st->session->header.env;
+	struct perf_env *env = perf_session__env(st->session);
 	aggr_cpu_id_get_t get_id = aggr_mode__get_aggr_file(stat_config.aggr_mode);
 	bool needs_sort = stat_config.aggr_mode != AGGR_NONE;
 
@@ -2112,8 +2112,9 @@ static int process_stat_round_event(struct perf_session *session,
 {
 	struct perf_record_stat_round *stat_round = &event->stat_round;
 	struct timespec tsh, *ts = NULL;
-	const char **argv = session->header.env.cmdline_argv;
-	int argc = session->header.env.nr_cmdline;
+	struct perf_env *env = perf_session__env(session);
+	const char **argv = env->cmdline_argv;
+	int argc = env->nr_cmdline;
 
 	process_counters();
 
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 068d297aaf44..22050c640dfa 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1618,7 +1618,7 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
 	if (IS_ERR(session))
 		return PTR_ERR(session);
 
-	symbol__init(&session->header.env);
+	symbol__init(perf_session__env(session));
 
 	(void)perf_header__process_sections(&session->header,
 					    perf_data__fd(session->data),
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index c77e195ea786..87d5742b7eb7 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -647,7 +647,8 @@ static void *display_thread_tui(void *arg)
 	}
 
 	ret = evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent,
-				       &top->session->header.env, !top->record_opts.overwrite);
+				       perf_session__env(top->session),
+				       !top->record_opts.overwrite);
 	if (ret == K_RELOAD) {
 		top->zero = true;
 		goto repeat;
@@ -1253,7 +1254,7 @@ static int __cmd_top(struct perf_top *top)
 	int ret;
 
 	if (!annotate_opts.objdump_path) {
-		ret = perf_env__lookup_objdump(&top->session->header.env,
+		ret = perf_env__lookup_objdump(perf_session__env(top->session),
 					       &annotate_opts.objdump_path);
 		if (ret)
 			return ret;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bb2dbc1d2ffa..0261f4eefe6d 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -4701,7 +4701,7 @@ static int trace__replay(struct trace *trace)
 	if (trace->opts.target.tid)
 		symbol_conf.tid_list_str = strdup(trace->opts.target.tid);
 
-	if (symbol__init(&session->header.env) < 0)
+	if (symbol__init(perf_session__env(session)) < 0)
 		goto out;
 
 	trace->host = &session->machines.host;
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index a8cb5ba898ab..bc7d10630dad 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -69,9 +69,11 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	int i;
 	struct aggr_cpu_id id;
 	struct perf_cpu cpu;
+	struct perf_env *env;
 
 	session = perf_session__new(&data, NULL);
 	TEST_ASSERT_VAL("can't get session", !IS_ERR(session));
+	env = perf_session__env(session);
 	cpu__setup_cpunode_map();
 
 	/* On platforms with large numbers of CPUs process_cpu_topology()
@@ -95,9 +97,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	 *  condition is true (see do_core_id_test in header.c). So always
 	 *  run this test on those platforms.
 	 */
-	if (!session->header.env.cpu
-			&& strncmp(session->header.env.arch, "s390", 4)
-			&& strncmp(session->header.env.arch, "aarch64", 7))
+	if (!env->cpu && strncmp(env->arch, "s390", 4) && strncmp(env->arch, "aarch64", 7))
 		return TEST_SKIP;
 
 	/*
@@ -106,20 +106,20 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	 * physical_package_id will be set to -1. Hence skip this
 	 * test if physical_package_id returns -1 for cpu from perf_cpu_map.
 	 */
-	if (!strncmp(session->header.env.arch, "ppc64le", 7)) {
+	if (!strncmp(env->arch, "ppc64le", 7)) {
 		if (cpu__get_socket_id(perf_cpu_map__cpu(map, 0)) == -1)
 			return TEST_SKIP;
 	}
 
-	TEST_ASSERT_VAL("Session header CPU map not set", session->header.env.cpu);
+	TEST_ASSERT_VAL("Session header CPU map not set", env->cpu);
 
-	for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
+	for (i = 0; i < env->nr_cpus_avail; i++) {
 		cpu.cpu = i;
 		if (!perf_cpu_map__has(map, cpu))
 			continue;
 		pr_debug("CPU %d, core %d, socket %d\n", i,
-			 session->header.env.cpu[i].core_id,
-			 session->header.env.cpu[i].socket_id);
+			 env->cpu[i].core_id,
+			 env->cpu[i].socket_id);
 	}
 
 	// Test that CPU ID contains socket, die, core and CPU
@@ -129,13 +129,12 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 				cpu.cpu == id.cpu.cpu);
 
 		TEST_ASSERT_VAL("Cpu map - Core ID doesn't match",
-			session->header.env.cpu[cpu.cpu].core_id == id.core);
+			env->cpu[cpu.cpu].core_id == id.core);
 		TEST_ASSERT_VAL("Cpu map - Socket ID doesn't match",
-			session->header.env.cpu[cpu.cpu].socket_id ==
-			id.socket);
+			env->cpu[cpu.cpu].socket_id == id.socket);
 
 		TEST_ASSERT_VAL("Cpu map - Die ID doesn't match",
-			session->header.env.cpu[cpu.cpu].die_id == id.die);
+			env->cpu[cpu.cpu].die_id == id.die);
 		TEST_ASSERT_VAL("Cpu map - Node ID is set", id.node == -1);
 		TEST_ASSERT_VAL("Cpu map - Thread IDX is set", id.thread_idx == -1);
 	}
@@ -144,14 +143,13 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	perf_cpu_map__for_each_cpu(cpu, i, map) {
 		id = aggr_cpu_id__core(cpu, NULL);
 		TEST_ASSERT_VAL("Core map - Core ID doesn't match",
-			session->header.env.cpu[cpu.cpu].core_id == id.core);
+			env->cpu[cpu.cpu].core_id == id.core);
 
 		TEST_ASSERT_VAL("Core map - Socket ID doesn't match",
-			session->header.env.cpu[cpu.cpu].socket_id ==
-			id.socket);
+			env->cpu[cpu.cpu].socket_id == id.socket);
 
 		TEST_ASSERT_VAL("Core map - Die ID doesn't match",
-			session->header.env.cpu[cpu.cpu].die_id == id.die);
+			env->cpu[cpu.cpu].die_id == id.die);
 		TEST_ASSERT_VAL("Core map - Node ID is set", id.node == -1);
 		TEST_ASSERT_VAL("Core map - Thread IDX is set", id.thread_idx == -1);
 	}
@@ -160,11 +158,10 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	perf_cpu_map__for_each_cpu(cpu, i, map) {
 		id = aggr_cpu_id__die(cpu, NULL);
 		TEST_ASSERT_VAL("Die map - Socket ID doesn't match",
-			session->header.env.cpu[cpu.cpu].socket_id ==
-			id.socket);
+			env->cpu[cpu.cpu].socket_id == id.socket);
 
 		TEST_ASSERT_VAL("Die map - Die ID doesn't match",
-			session->header.env.cpu[cpu.cpu].die_id == id.die);
+			env->cpu[cpu.cpu].die_id == id.die);
 
 		TEST_ASSERT_VAL("Die map - Node ID is set", id.node == -1);
 		TEST_ASSERT_VAL("Die map - Core is set", id.core == -1);
@@ -176,8 +173,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
 	perf_cpu_map__for_each_cpu(cpu, i, map) {
 		id = aggr_cpu_id__socket(cpu, NULL);
 		TEST_ASSERT_VAL("Socket map - Socket ID doesn't match",
-			session->header.env.cpu[cpu.cpu].socket_id ==
-			id.socket);
+			env->cpu[cpu.cpu].socket_id == id.socket);
 
 		TEST_ASSERT_VAL("Socket map - Node ID is set", id.node == -1);
 		TEST_ASSERT_VAL("Socket map - Die ID is set", id.die == -1);
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index dc09a4730c50..664f361ef8c1 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -549,7 +549,7 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 	 * for perf-record and perf-report use header.env;
 	 * otherwise, use global perf_env.
 	 */
-	env = session->data ? &session->header.env : &perf_env;
+	env = session->data ? perf_session__env(session) : &perf_env;
 
 	arrays = 1UL << PERF_BPIL_JITED_KSYMS;
 	arrays |= 1UL << PERF_BPIL_JITED_FUNC_LENS;
diff --git a/tools/perf/util/branch.c b/tools/perf/util/branch.c
index ab760e267d41..3712be067464 100644
--- a/tools/perf/util/branch.c
+++ b/tools/perf/util/branch.c
@@ -46,7 +46,7 @@ const char *branch_new_type_name(int new_type)
 		"FAULT_DATA",
 		"FAULT_INST",
 /*
- * TODO: This switch should happen on 'session->header.env.arch'
+ * TODO: This switch should happen on 'perf_session__env(session)->arch'
  * instead, because an arm64 platform perf recording could be
  * opened for analysis on other platforms as well.
  */
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 5e7ff09fbc95..3d2e437e1354 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -1338,14 +1338,14 @@ static void cleanup_events(struct perf_session *session)
 static int setup_streams(struct ctf_writer *cw, struct perf_session *session)
 {
 	struct ctf_stream **stream;
-	struct perf_header *ph = &session->header;
+	struct perf_env *env = perf_session__env(session);
 	int ncpus;
 
 	/*
 	 * Try to get the number of cpus used in the data file,
 	 * if not present fallback to the MAX_CPUS.
 	 */
-	ncpus = ph->env.nr_cpus_avail ?: MAX_CPUS;
+	ncpus = env->nr_cpus_avail ?: MAX_CPUS;
 
 	stream = zalloc(sizeof(*stream) * ncpus);
 	if (!stream) {
@@ -1371,7 +1371,7 @@ static void free_streams(struct ctf_writer *cw)
 static int ctf_writer__setup_env(struct ctf_writer *cw,
 				 struct perf_session *session)
 {
-	struct perf_header *header = &session->header;
+	struct perf_env *env = perf_session__env(session);
 	struct bt_ctf_writer *writer = cw->writer;
 
 #define ADD(__n, __v)							\
@@ -1380,11 +1380,11 @@ do {									\
 		return -1;						\
 } while (0)
 
-	ADD("host",    header->env.hostname);
+	ADD("host",    env->hostname);
 	ADD("sysname", "Linux");
-	ADD("release", header->env.os_release);
-	ADD("version", header->env.version);
-	ADD("machine", header->env.arch);
+	ADD("release", env->os_release);
+	ADD("version", env->version);
+	ADD("machine", env->arch);
 	ADD("domain", "kernel");
 	ADD("tracer_name", "perf");
 
@@ -1401,7 +1401,7 @@ static int ctf_writer__setup_clock(struct ctf_writer *cw,
 	int64_t offset = 0;
 
 	if (tod) {
-		struct perf_env *env = &session->header.env;
+		struct perf_env *env = perf_session__env(session);
 
 		if (!env->clock.enabled) {
 			pr_err("Can't provide --tod time, missing clock data. "
diff --git a/tools/perf/util/data-convert-json.c b/tools/perf/util/data-convert-json.c
index d9f805bf6fb0..9dc1e184cf3c 100644
--- a/tools/perf/util/data-convert-json.c
+++ b/tools/perf/util/data-convert-json.c
@@ -257,7 +257,8 @@ static int process_sample_event(const struct perf_tool *tool,
 static void output_headers(struct perf_session *session, struct convert_json *c)
 {
 	struct stat st;
-	struct perf_header *header = &session->header;
+	const struct perf_header *header = &session->header;
+	const struct perf_env *env = perf_session__env(session);
 	int ret;
 	int fd = perf_data__fd(session->data);
 	int i;
@@ -280,32 +281,32 @@ static void output_headers(struct perf_session *session, struct convert_json *c)
 	output_json_key_format(out, true, 2, "data-size", "%" PRIu64, header->data_size);
 	output_json_key_format(out, true, 2, "feat-offset", "%" PRIu64, header->feat_offset);
 
-	output_json_key_string(out, true, 2, "hostname", header->env.hostname);
-	output_json_key_string(out, true, 2, "os-release", header->env.os_release);
-	output_json_key_string(out, true, 2, "arch", header->env.arch);
+	output_json_key_string(out, true, 2, "hostname", env->hostname);
+	output_json_key_string(out, true, 2, "os-release", env->os_release);
+	output_json_key_string(out, true, 2, "arch", env->arch);
 
-	if (header->env.cpu_desc)
-		output_json_key_string(out, true, 2, "cpu-desc", header->env.cpu_desc);
+	if (env->cpu_desc)
+		output_json_key_string(out, true, 2, "cpu-desc", env->cpu_desc);
 
-	output_json_key_string(out, true, 2, "cpuid", header->env.cpuid);
-	output_json_key_format(out, true, 2, "nrcpus-online", "%u", header->env.nr_cpus_online);
-	output_json_key_format(out, true, 2, "nrcpus-avail", "%u", header->env.nr_cpus_avail);
+	output_json_key_string(out, true, 2, "cpuid", env->cpuid);
+	output_json_key_format(out, true, 2, "nrcpus-online", "%u", env->nr_cpus_online);
+	output_json_key_format(out, true, 2, "nrcpus-avail", "%u", env->nr_cpus_avail);
 
-	if (header->env.clock.enabled) {
+	if (env->clock.enabled) {
 		output_json_key_format(out, true, 2, "clockid",
-				"%u", header->env.clock.clockid);
+				"%u", env->clock.clockid);
 		output_json_key_format(out, true, 2, "clock-time",
-				"%" PRIu64, header->env.clock.clockid_ns);
+				"%" PRIu64, env->clock.clockid_ns);
 		output_json_key_format(out, true, 2, "real-time",
-				"%" PRIu64, header->env.clock.tod_ns);
+				"%" PRIu64, env->clock.tod_ns);
 	}
 
-	output_json_key_string(out, true, 2, "perf-version", header->env.version);
+	output_json_key_string(out, true, 2, "perf-version", env->version);
 
 	output_json_key_format(out, true, 2, "cmdline", "[");
-	for (i = 0; i < header->env.nr_cmdline; i++) {
+	for (i = 0; i < env->nr_cmdline; i++) {
 		output_json_delimiters(out, i != 0, 3);
-		output_json_string(c->out, header->env.cmdline_argv[i]);
+		output_json_string(c->out, env->cmdline_argv[i]);
 	}
 	output_json_format(out, false, 2, "]");
 }
@@ -376,8 +377,7 @@ int bt_convert__perf2json(const char *input_name, const char *output_name,
 		fprintf(stderr, "Error creating perf session!\n");
 		goto err_fclose;
 	}
-
-	if (symbol__init(&session->header.env) < 0) {
+	if (symbol__init(perf_session__env(session)) < 0) {
 		fprintf(stderr, "Symbol init error!\n");
 		goto err_session_delete;
 	}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 38075059086c..b09d157f7d04 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -2558,7 +2558,7 @@ int perf_session__cpu_bitmap(struct perf_session *session,
 {
 	int i, err = -1;
 	struct perf_cpu_map *map;
-	int nr_cpus = min(session->header.env.nr_cpus_avail, MAX_NR_CPUS);
+	int nr_cpus = min(perf_session__env(session)->nr_cpus_avail, MAX_NR_CPUS);
 	struct perf_cpu cpu;
 
 	for (i = 0; i < PERF_TYPE_MAX; ++i) {
@@ -2747,3 +2747,8 @@ int perf_session__dsos_hit_all(struct perf_session *session)
 
 	return 0;
 }
+
+struct perf_env *perf_session__env(struct perf_session *session)
+{
+	return &session->header.env;
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index db1c120a9e67..e7f7464b838f 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -208,4 +208,6 @@ int perf_event__process_finished_round(const struct perf_tool *tool,
 				       union perf_event *event,
 				       struct ordered_events *oe);
 
+struct perf_env *perf_session__env(struct perf_session *session);
+
 #endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/tool.c b/tools/perf/util/tool.c
index 204ec03071bc..e83c7ababc2a 100644
--- a/tools/perf/util/tool.c
+++ b/tools/perf/util/tool.c
@@ -20,7 +20,7 @@ static int perf_session__process_compressed_event(struct perf_session *session,
 	void *src;
 	size_t decomp_size, src_size;
 	u64 decomp_last_rem = 0;
-	size_t mmap_len, decomp_len = session->header.env.comp_mmap_len;
+	size_t mmap_len, decomp_len = perf_session__env(session)->comp_mmap_len;
 	struct decomp *decomp, *decomp_last = session->active_decomp->decomp_last;
 
 	if (decomp_last) {

From 57ddb9cbb54fbf3772063795051b88a1f7258c6c Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:50 -0700
Subject: [PATCH 156/179] perf evlist: Change env variable to session

The session holds a perf_env pointer env. In UI code container_of is
used to turn the env to a session, but this assumes the session
header's env is in use. Rather than a dubious container_of, hold the
session in the evlist and derive the env from the session with
evsel__env, perf_session__env, etc.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-11-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-report.c      |  6 +++++-
 tools/perf/builtin-script.c      |  2 +-
 tools/perf/builtin-top.c         |  2 +-
 tools/perf/tests/topology.c      |  1 +
 tools/perf/ui/browser.h          |  4 ++--
 tools/perf/ui/browsers/header.c  |  4 +---
 tools/perf/ui/browsers/hists.c   |  2 +-
 tools/perf/util/amd-sample-raw.c |  2 +-
 tools/perf/util/arm-spe.c        |  2 +-
 tools/perf/util/evlist.h         |  2 +-
 tools/perf/util/evsel.c          | 12 +++++++++---
 tools/perf/util/evsel.h          |  1 +
 tools/perf/util/header.c         |  2 +-
 tools/perf/util/s390-cpumsf.c    |  2 +-
 tools/perf/util/sample-raw.c     |  7 ++++---
 tools/perf/util/sample-raw.h     |  2 +-
 tools/perf/util/session.c        |  4 +++-
 17 files changed, 35 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 704576e46e4b..ada8e0166c78 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1274,6 +1274,8 @@ static int process_attr(const struct perf_tool *tool __maybe_unused,
 			union perf_event *event,
 			struct evlist **pevlist)
 {
+	struct perf_session *session;
+	struct perf_env *env;
 	u64 sample_type;
 	int err;
 
@@ -1286,7 +1288,9 @@ static int process_attr(const struct perf_tool *tool __maybe_unused,
 	 * on events sample_type.
 	 */
 	sample_type = evlist__combined_sample_type(*pevlist);
-	callchain_param_setup(sample_type, perf_env__arch((*pevlist)->env));
+	session = (*pevlist)->session;
+	env = perf_session__env(session);
+	callchain_param_setup(sample_type, perf_env__arch(env));
 	return 0;
 }
 
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 31cce67217b0..f2b5620165b4 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2534,7 +2534,7 @@ static int process_attr(const struct perf_tool *tool, union perf_event *event,
 	 * on events sample_type.
 	 */
 	sample_type = evlist__combined_sample_type(evlist);
-	callchain_param_setup(sample_type, perf_env__arch((*pevlist)->env));
+	callchain_param_setup(sample_type, perf_env__arch(perf_session__env(scr->session)));
 
 	/* Enable fields for callchain entries */
 	if (symbol_conf.use_callchain &&
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 87d5742b7eb7..2760971d4c97 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1654,7 +1654,6 @@ int cmd_top(int argc, const char **argv)
 			"Couldn't read the cpuid for this machine: %s\n",
 			str_error_r(errno, errbuf, sizeof(errbuf)));
 	}
-	top.evlist->env = &perf_env;
 
 	argc = parse_options(argc, argv, options, top_usage, 0);
 	if (argc)
@@ -1830,6 +1829,7 @@ int cmd_top(int argc, const char **argv)
 		perf_top__update_print_entries(&top);
 		signal(SIGWINCH, winch_sig);
 	}
+	top.session->env = &perf_env;
 
 	top.session = perf_session__new(NULL, NULL);
 	if (IS_ERR(top.session)) {
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index bc7d10630dad..ec01150d208d 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -43,6 +43,7 @@ static int session_write_header(char *path)
 
 	session->evlist = evlist__new_default();
 	TEST_ASSERT_VAL("can't get evlist", session->evlist);
+	session->evlist->session = session;
 
 	perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
 	perf_header__set_feat(&session->header, HEADER_NRCPUS);
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index f59ad4f14d33..9d4404f9b87f 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -71,8 +71,8 @@ int ui_browser__help_window(struct ui_browser *browser, const char *text);
 bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text);
 int ui_browser__input_window(const char *title, const char *text, char *input,
 			     const char *exit_msg, int delay_sec);
-struct perf_env;
-int tui__header_window(struct perf_env *env);
+struct perf_session;
+int tui__header_window(struct perf_session *session);
 
 void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);
 unsigned int ui_browser__argv_refresh(struct ui_browser *browser);
diff --git a/tools/perf/ui/browsers/header.c b/tools/perf/ui/browsers/header.c
index 2213b4661600..5b5ca32e3eef 100644
--- a/tools/perf/ui/browsers/header.c
+++ b/tools/perf/ui/browsers/header.c
@@ -93,16 +93,14 @@ static int ui__list_menu(int argc, char * const argv[])
 	return list_menu__run(&menu);
 }
 
-int tui__header_window(struct perf_env *env)
+int tui__header_window(struct perf_session *session)
 {
 	int i, argc = 0;
 	char **argv;
-	struct perf_session *session;
 	char *ptr, *pos;
 	size_t size;
 	FILE *fp = open_memstream(&ptr, &size);
 
-	session = container_of(env, struct perf_session, header.env);
 	perf_header__fprintf_info(session, fp, true);
 	fclose(fp);
 
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index d26b925e3d7f..d9d3fb44477a 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -3233,7 +3233,7 @@ static int evsel__hists_browse(struct evsel *evsel, int nr_events, const char *h
 		case 'i':
 			/* env->arch is NULL for live-mode (i.e. perf top) */
 			if (env->arch)
-				tui__header_window(env);
+				tui__header_window(evsel__session(evsel));
 			continue;
 		case 'F':
 			symbol_conf.filter_relative ^= 1;
diff --git a/tools/perf/util/amd-sample-raw.c b/tools/perf/util/amd-sample-raw.c
index 4b540e6fb42d..b084dee76b1a 100644
--- a/tools/perf/util/amd-sample-raw.c
+++ b/tools/perf/util/amd-sample-raw.c
@@ -354,7 +354,7 @@ static void parse_cpuid(struct perf_env *env)
  */
 bool evlist__has_amd_ibs(struct evlist *evlist)
 {
-	struct perf_env *env = evlist->env;
+	struct perf_env *env = perf_session__env(evlist->session);
 	int ret, nr_pmu_mappings = perf_env__nr_pmu_mappings(env);
 	const char *pmu_mapping = perf_env__pmu_mappings(env);
 	char name[sizeof("ibs_fetch")];
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index d46e0cccac99..8942fa598a84 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -856,7 +856,7 @@ static bool arm_spe__synth_ds(struct arm_spe_queue *speq,
 		const char *cpuid;
 
 		pr_warning_once("Old SPE metadata, re-record to improve decode accuracy\n");
-		cpuid = perf_env__cpuid(spe->session->evlist->env);
+		cpuid = perf_env__cpuid(perf_session__env(spe->session));
 		midr = strtol(cpuid, NULL, 16);
 	} else {
 		/* CPU ID is -1 for per-thread mode */
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 1472d2179be1..5e71e3dc6042 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -71,7 +71,7 @@ struct evlist {
 	struct mmap *overwrite_mmap;
 	struct evsel *selected;
 	struct events_stats stats;
-	struct perf_env	*env;
+	struct perf_session *session;
 	void (*trace_event_sample_raw)(struct evlist *evlist,
 				       union perf_event *event,
 				       struct perf_sample *sample);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ae11df1e7902..3f766f240cc7 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -48,6 +48,7 @@
 #include "record.h"
 #include "debug.h"
 #include "trace-event.h"
+#include "session.h"
 #include "stat.h"
 #include "string2.h"
 #include "memswap.h"
@@ -3872,11 +3873,16 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target,
 			 err, str_error_r(err, sbuf, sizeof(sbuf)), evsel__name(evsel));
 }
 
+struct perf_session *evsel__session(struct evsel *evsel)
+{
+	return evsel && evsel->evlist ? evsel->evlist->session : NULL;
+}
+
 struct perf_env *evsel__env(struct evsel *evsel)
 {
-	if (evsel && evsel->evlist && evsel->evlist->env)
-		return evsel->evlist->env;
-	return &perf_env;
+	struct perf_session *session = evsel__session(evsel);
+
+	return session ? perf_session__env(session) : &perf_env;
 }
 
 static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 8e79eb6d41b3..5797a02e5d6a 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -542,6 +542,7 @@ static inline bool evsel__is_dummy_event(struct evsel *evsel)
 	       (evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
 }
 
+struct perf_session *evsel__session(struct evsel *evsel);
 struct perf_env *evsel__env(struct evsel *evsel);
 
 int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 4f8133a18312..ce0fe7879ab0 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -4225,7 +4225,7 @@ int perf_session__read_header(struct perf_session *session)
 	if (session->evlist == NULL)
 		return -ENOMEM;
 
-	session->evlist->env = &header->env;
+	session->evlist->session = session;
 	session->machines.host.env = &header->env;
 
 	/*
diff --git a/tools/perf/util/s390-cpumsf.c b/tools/perf/util/s390-cpumsf.c
index 0ce52f0280b8..c17dbe232c54 100644
--- a/tools/perf/util/s390-cpumsf.c
+++ b/tools/perf/util/s390-cpumsf.c
@@ -1142,7 +1142,7 @@ int s390_cpumsf_process_auxtrace_info(union perf_event *event,
 	sf->machine = &session->machines.host; /* No kvm support */
 	sf->auxtrace_type = auxtrace_info->type;
 	sf->pmu_type = PERF_TYPE_RAW;
-	sf->machine_type = s390_cpumsf_get_type(session->evlist->env->cpuid);
+	sf->machine_type = s390_cpumsf_get_type(perf_session__env(session)->cpuid);
 
 	sf->auxtrace.process_event = s390_cpumsf_process_event;
 	sf->auxtrace.process_auxtrace_event = s390_cpumsf_process_auxtrace_event;
diff --git a/tools/perf/util/sample-raw.c b/tools/perf/util/sample-raw.c
index f3f6bd9d290e..bcf442574d6e 100644
--- a/tools/perf/util/sample-raw.c
+++ b/tools/perf/util/sample-raw.c
@@ -6,15 +6,16 @@
 #include "env.h"
 #include "header.h"
 #include "sample-raw.h"
+#include "session.h"
 
 /*
  * Check platform the perf data file was created on and perform platform
  * specific interpretation.
  */
-void evlist__init_trace_event_sample_raw(struct evlist *evlist)
+void evlist__init_trace_event_sample_raw(struct evlist *evlist, struct perf_env *env)
 {
-	const char *arch_pf = perf_env__arch(evlist->env);
-	const char *cpuid = perf_env__cpuid(evlist->env);
+	const char *arch_pf = perf_env__arch(env);
+	const char *cpuid = perf_env__cpuid(env);
 
 	if (arch_pf && !strcmp("s390", arch_pf))
 		evlist->trace_event_sample_raw = evlist__s390_sample_raw;
diff --git a/tools/perf/util/sample-raw.h b/tools/perf/util/sample-raw.h
index ea01c5811503..896e9a87e373 100644
--- a/tools/perf/util/sample-raw.h
+++ b/tools/perf/util/sample-raw.h
@@ -11,5 +11,5 @@ void evlist__s390_sample_raw(struct evlist *evlist, union perf_event *event,
 bool evlist__has_amd_ibs(struct evlist *evlist);
 void evlist__amd_sample_raw(struct evlist *evlist, union perf_event *event,
 			    struct perf_sample *sample);
-void evlist__init_trace_event_sample_raw(struct evlist *evlist);
+void evlist__init_trace_event_sample_raw(struct evlist *evlist, struct perf_env *env);
 #endif /* __PERF_EVLIST_H */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index b09d157f7d04..a851d9130abd 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -177,7 +177,7 @@ struct perf_session *__perf_session__new(struct perf_data *data,
 				perf_session__set_comm_exec(session);
 			}
 
-			evlist__init_trace_event_sample_raw(session->evlist);
+			evlist__init_trace_event_sample_raw(session->evlist, &session->header.env);
 
 			/* Open the directory data. */
 			if (data->is_dir) {
@@ -193,6 +193,8 @@ struct perf_session *__perf_session__new(struct perf_data *data,
 	} else  {
 		session->machines.host.env = &perf_env;
 	}
+	if (session->evlist)
+		session->evlist->session = session;
 
 	session->machines.host.single_address_space =
 		perf_env__single_address_space(session->machines.host.env);

From b743a1368dea43b4ef6e51c2931eeada07556d87 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:51 -0700
Subject: [PATCH 157/179] perf header: Clean up use of perf_env

Always use the perf_env from the feat_fd's perf_header. Cache the
value on entry to a function in `env` and use `env->` consistently in
the code. Ensure the header is initialized for use in
perf_session__do_write_header.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-12-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/header.c | 174 ++++++++++++++++++++++-----------------
 1 file changed, 98 insertions(+), 76 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index ce0fe7879ab0..4f2a6e10ed5c 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -557,6 +557,7 @@ static int write_event_desc(struct feat_fd *ff,
 static int write_cmdline(struct feat_fd *ff,
 			 struct evlist *evlist __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	char pbuf[MAXPATHLEN], *buf;
 	int i, ret, n;
 
@@ -564,7 +565,7 @@ static int write_cmdline(struct feat_fd *ff,
 	buf = perf_exe(pbuf, MAXPATHLEN);
 
 	/* account for binary path */
-	n = perf_env.nr_cmdline + 1;
+	n = env->nr_cmdline + 1;
 
 	ret = do_write(ff, &n, sizeof(n));
 	if (ret < 0)
@@ -574,8 +575,8 @@ static int write_cmdline(struct feat_fd *ff,
 	if (ret < 0)
 		return ret;
 
-	for (i = 0 ; i < perf_env.nr_cmdline; i++) {
-		ret = do_write_string(ff, perf_env.cmdline_argv[i]);
+	for (i = 0 ; i < env->nr_cmdline; i++) {
+		ret = do_write_string(ff, env->cmdline_argv[i]);
 		if (ret < 0)
 			return ret;
 	}
@@ -586,6 +587,7 @@ static int write_cmdline(struct feat_fd *ff,
 static int write_cpu_topology(struct feat_fd *ff,
 			      struct evlist *evlist __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct cpu_topology *tp;
 	u32 i;
 	int ret, j;
@@ -613,17 +615,17 @@ static int write_cpu_topology(struct feat_fd *ff,
 			break;
 	}
 
-	ret = perf_env__read_cpu_topology_map(&perf_env);
+	ret = perf_env__read_cpu_topology_map(env);
 	if (ret < 0)
 		goto done;
 
-	for (j = 0; j < perf_env.nr_cpus_avail; j++) {
-		ret = do_write(ff, &perf_env.cpu[j].core_id,
-			       sizeof(perf_env.cpu[j].core_id));
+	for (j = 0; j < env->nr_cpus_avail; j++) {
+		ret = do_write(ff, &env->cpu[j].core_id,
+			       sizeof(env->cpu[j].core_id));
 		if (ret < 0)
 			return ret;
-		ret = do_write(ff, &perf_env.cpu[j].socket_id,
-			       sizeof(perf_env.cpu[j].socket_id));
+		ret = do_write(ff, &env->cpu[j].socket_id,
+			       sizeof(env->cpu[j].socket_id));
 		if (ret < 0)
 			return ret;
 	}
@@ -641,9 +643,9 @@ static int write_cpu_topology(struct feat_fd *ff,
 			goto done;
 	}
 
-	for (j = 0; j < perf_env.nr_cpus_avail; j++) {
-		ret = do_write(ff, &perf_env.cpu[j].die_id,
-			       sizeof(perf_env.cpu[j].die_id));
+	for (j = 0; j < env->nr_cpus_avail; j++) {
+		ret = do_write(ff, &env->cpu[j].die_id,
+			       sizeof(env->cpu[j].die_id));
 		if (ret < 0)
 			return ret;
 	}
@@ -2123,17 +2125,18 @@ static void print_cpu_pmu_caps(struct feat_fd *ff, FILE *fp)
 
 static void print_pmu_caps(struct feat_fd *ff, FILE *fp)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct pmu_caps *pmu_caps;
 
-	for (int i = 0; i < ff->ph->env.nr_pmus_with_caps; i++) {
-		pmu_caps = &ff->ph->env.pmu_caps[i];
+	for (int i = 0; i < env->nr_pmus_with_caps; i++) {
+		pmu_caps = &env->pmu_caps[i];
 		__print_pmu_caps(fp, pmu_caps->nr_caps, pmu_caps->caps,
 				 pmu_caps->pmu_name);
 	}
 
-	if (strcmp(perf_env__arch(&ff->ph->env), "x86") == 0 &&
-	    perf_env__has_pmu_mapping(&ff->ph->env, "ibs_op")) {
-		char *max_precise = perf_env__find_pmu_cap(&ff->ph->env, "cpu", "max_precise");
+	if (strcmp(perf_env__arch(env), "x86") == 0 &&
+	    perf_env__has_pmu_mapping(env, "ibs_op")) {
+		char *max_precise = perf_env__find_pmu_cap(env, "cpu", "max_precise");
 
 		if (max_precise != NULL && atoi(max_precise) == 0)
 			fprintf(fp, "# AMD systems uses ibs_op// PMU for some precise events, e.g.: cycles:p, see the 'perf list' man page for further details.\n");
@@ -2142,18 +2145,19 @@ static void print_pmu_caps(struct feat_fd *ff, FILE *fp)
 
 static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)
 {
+	struct perf_env *env = &ff->ph->env;
 	const char *delimiter = "# pmu mappings: ";
 	char *str, *tmp;
 	u32 pmu_num;
 	u32 type;
 
-	pmu_num = ff->ph->env.nr_pmu_mappings;
+	pmu_num = env->nr_pmu_mappings;
 	if (!pmu_num) {
 		fprintf(fp, "# pmu mappings: not available\n");
 		return;
 	}
 
-	str = ff->ph->env.pmu_mappings;
+	str = env->pmu_mappings;
 
 	while (pmu_num) {
 		type = strtoul(str, &tmp, 0);
@@ -2235,17 +2239,18 @@ static void memory_node__fprintf(struct memory_node *n,
 
 static void print_mem_topology(struct feat_fd *ff, FILE *fp)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct memory_node *nodes;
 	int i, nr;
 
-	nodes = ff->ph->env.memory_nodes;
-	nr    = ff->ph->env.nr_memory_nodes;
+	nodes = env->memory_nodes;
+	nr    = env->nr_memory_nodes;
 
 	fprintf(fp, "# memory nodes (nr %d, block size 0x%llx):\n",
-		nr, ff->ph->env.memory_bsize);
+		nr, env->memory_bsize);
 
 	for (i = 0; i < nr; i++) {
-		memory_node__fprintf(&nodes[i], ff->ph->env.memory_bsize, fp);
+		memory_node__fprintf(&nodes[i], env->memory_bsize, fp);
 	}
 }
 
@@ -2443,6 +2448,7 @@ static int process_build_id(struct feat_fd *ff, void *data __maybe_unused)
 
 static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	int ret;
 	u32 nr_cpus_avail, nr_cpus_online;
 
@@ -2453,20 +2459,21 @@ static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)
 	ret = do_read_u32(ff, &nr_cpus_online);
 	if (ret)
 		return ret;
-	ff->ph->env.nr_cpus_avail = (int)nr_cpus_avail;
-	ff->ph->env.nr_cpus_online = (int)nr_cpus_online;
+	env->nr_cpus_avail = (int)nr_cpus_avail;
+	env->nr_cpus_online = (int)nr_cpus_online;
 	return 0;
 }
 
 static int process_total_mem(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	u64 total_mem;
 	int ret;
 
 	ret = do_read_u64(ff, &total_mem);
 	if (ret)
 		return -1;
-	ff->ph->env.total_mem = (unsigned long long)total_mem;
+	env->total_mem = (unsigned long long)total_mem;
 	return 0;
 }
 
@@ -2527,13 +2534,14 @@ process_event_desc(struct feat_fd *ff, void *data __maybe_unused)
 
 static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	char *str, *cmdline = NULL, **argv = NULL;
 	u32 nr, i, len = 0;
 
 	if (do_read_u32(ff, &nr))
 		return -1;
 
-	ff->ph->env.nr_cmdline = nr;
+	env->nr_cmdline = nr;
 
 	cmdline = zalloc(ff->size + nr + 1);
 	if (!cmdline)
@@ -2553,8 +2561,8 @@ static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused)
 		len += strlen(str) + 1;
 		free(str);
 	}
-	ff->ph->env.cmdline = cmdline;
-	ff->ph->env.cmdline_argv = (const char **) argv;
+	env->cmdline = cmdline;
+	env->cmdline_argv = (const char **) argv;
 	return 0;
 
 error:
@@ -2568,18 +2576,18 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 	u32 nr, i;
 	char *str = NULL;
 	struct strbuf sb;
-	int cpu_nr = ff->ph->env.nr_cpus_avail;
+	struct perf_env *env = &ff->ph->env;
+	int cpu_nr = env->nr_cpus_avail;
 	u64 size = 0;
-	struct perf_header *ph = ff->ph;
 
-	ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
-	if (!ph->env.cpu)
+	env->cpu = calloc(cpu_nr, sizeof(*env->cpu));
+	if (!env->cpu)
 		return -1;
 
 	if (do_read_u32(ff, &nr))
 		goto free_cpu;
 
-	ph->env.nr_sibling_cores = nr;
+	env->nr_sibling_cores = nr;
 	size += sizeof(u32);
 	if (strbuf_init(&sb, 128) < 0)
 		goto free_cpu;
@@ -2595,12 +2603,12 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		size += string_size(str);
 		zfree(&str);
 	}
-	ph->env.sibling_cores = strbuf_detach(&sb, NULL);
+	env->sibling_cores = strbuf_detach(&sb, NULL);
 
 	if (do_read_u32(ff, &nr))
 		return -1;
 
-	ph->env.nr_sibling_threads = nr;
+	env->nr_sibling_threads = nr;
 	size += sizeof(u32);
 
 	for (i = 0; i < nr; i++) {
@@ -2614,14 +2622,14 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		size += string_size(str);
 		zfree(&str);
 	}
-	ph->env.sibling_threads = strbuf_detach(&sb, NULL);
+	env->sibling_threads = strbuf_detach(&sb, NULL);
 
 	/*
 	 * The header may be from old perf,
 	 * which doesn't include core id and socket id information.
 	 */
 	if (ff->size <= size) {
-		zfree(&ph->env.cpu);
+		zfree(&env->cpu);
 		return 0;
 	}
 
@@ -2629,13 +2637,13 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		ph->env.cpu[i].core_id = nr;
+		env->cpu[i].core_id = nr;
 		size += sizeof(u32);
 
 		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		ph->env.cpu[i].socket_id = nr;
+		env->cpu[i].socket_id = nr;
 		size += sizeof(u32);
 	}
 
@@ -2649,7 +2657,7 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 	if (do_read_u32(ff, &nr))
 		return -1;
 
-	ph->env.nr_sibling_dies = nr;
+	env->nr_sibling_dies = nr;
 	size += sizeof(u32);
 
 	for (i = 0; i < nr; i++) {
@@ -2663,13 +2671,13 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 		size += string_size(str);
 		zfree(&str);
 	}
-	ph->env.sibling_dies = strbuf_detach(&sb, NULL);
+	env->sibling_dies = strbuf_detach(&sb, NULL);
 
 	for (i = 0; i < (u32)cpu_nr; i++) {
 		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		ph->env.cpu[i].die_id = nr;
+		env->cpu[i].die_id = nr;
 	}
 
 	return 0;
@@ -2678,12 +2686,13 @@ static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 	strbuf_release(&sb);
 	zfree(&str);
 free_cpu:
-	zfree(&ph->env.cpu);
+	zfree(&env->cpu);
 	return -1;
 }
 
 static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct numa_node *nodes, *n;
 	u32 nr, i;
 	char *str;
@@ -2718,8 +2727,8 @@ static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)
 		if (!n->map)
 			goto error;
 	}
-	ff->ph->env.nr_numa_nodes = nr;
-	ff->ph->env.numa_nodes = nodes;
+	env->nr_numa_nodes = nr;
+	env->numa_nodes = nodes;
 	return 0;
 
 error:
@@ -2729,6 +2738,7 @@ static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)
 
 static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	char *name;
 	u32 pmu_num;
 	u32 type;
@@ -2742,7 +2752,7 @@ static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)
 		return 0;
 	}
 
-	ff->ph->env.nr_pmu_mappings = pmu_num;
+	env->nr_pmu_mappings = pmu_num;
 	if (strbuf_init(&sb, 128) < 0)
 		return -1;
 
@@ -2761,14 +2771,14 @@ static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)
 			goto error;
 
 		if (!strcmp(name, "msr"))
-			ff->ph->env.msr_pmu_type = type;
+			env->msr_pmu_type = type;
 
 		free(name);
 		pmu_num--;
 	}
 	/* AMD may set it by evlist__has_amd_ibs() from perf_session__new() */
-	free(ff->ph->env.pmu_mappings);
-	ff->ph->env.pmu_mappings = strbuf_detach(&sb, NULL);
+	free(env->pmu_mappings);
+	env->pmu_mappings = strbuf_detach(&sb, NULL);
 	return 0;
 
 error:
@@ -2778,6 +2788,7 @@ static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)
 
 static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	size_t ret = -1;
 	u32 i, nr, nr_groups;
 	struct perf_session *session;
@@ -2791,7 +2802,7 @@ static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)
 	if (do_read_u32(ff, &nr_groups))
 		return -1;
 
-	ff->ph->env.nr_groups = nr_groups;
+	env->nr_groups = nr_groups;
 	if (!nr_groups) {
 		pr_debug("group desc not available\n");
 		return 0;
@@ -2875,6 +2886,7 @@ static int process_auxtrace(struct feat_fd *ff, void *data __maybe_unused)
 
 static int process_cache(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct cpu_cache_level *caches;
 	u32 cnt, i, version;
 
@@ -2915,8 +2927,8 @@ static int process_cache(struct feat_fd *ff, void *data __maybe_unused)
 		#undef _R
 	}
 
-	ff->ph->env.caches = caches;
-	ff->ph->env.caches_cnt = cnt;
+	env->caches = caches;
+	env->caches_cnt = cnt;
 	return 0;
 out_free_caches:
 	for (i = 0; i < cnt; i++) {
@@ -2952,6 +2964,7 @@ static int process_sample_time(struct feat_fd *ff, void *data __maybe_unused)
 static int process_mem_topology(struct feat_fd *ff,
 				void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct memory_node *nodes;
 	u64 version, i, nr, bsize;
 	int ret = -1;
@@ -2990,9 +3003,9 @@ static int process_mem_topology(struct feat_fd *ff,
 		nodes[i] = n;
 	}
 
-	ff->ph->env.memory_bsize    = bsize;
-	ff->ph->env.memory_nodes    = nodes;
-	ff->ph->env.nr_memory_nodes = nr;
+	env->memory_bsize    = bsize;
+	env->memory_nodes    = nodes;
+	env->nr_memory_nodes = nr;
 	ret = 0;
 
 out:
@@ -3004,7 +3017,9 @@ static int process_mem_topology(struct feat_fd *ff,
 static int process_clockid(struct feat_fd *ff,
 			   void *data __maybe_unused)
 {
-	if (do_read_u64(ff, &ff->ph->env.clock.clockid_res_ns))
+	struct perf_env *env = &ff->ph->env;
+
+	if (do_read_u64(ff, &env->clock.clockid_res_ns))
 		return -1;
 
 	return 0;
@@ -3013,6 +3028,7 @@ static int process_clockid(struct feat_fd *ff,
 static int process_clock_data(struct feat_fd *ff,
 			      void *_data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	u32 data32;
 	u64 data64;
 
@@ -3027,26 +3043,27 @@ static int process_clock_data(struct feat_fd *ff,
 	if (do_read_u32(ff, &data32))
 		return -1;
 
-	ff->ph->env.clock.clockid = data32;
+	env->clock.clockid = data32;
 
 	/* TOD ref time */
 	if (do_read_u64(ff, &data64))
 		return -1;
 
-	ff->ph->env.clock.tod_ns = data64;
+	env->clock.tod_ns = data64;
 
 	/* clockid ref time */
 	if (do_read_u64(ff, &data64))
 		return -1;
 
-	ff->ph->env.clock.clockid_ns = data64;
-	ff->ph->env.clock.enabled = true;
+	env->clock.clockid_ns = data64;
+	env->clock.enabled = true;
 	return 0;
 }
 
 static int process_hybrid_topology(struct feat_fd *ff,
 				   void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct hybrid_node *nodes, *n;
 	u32 nr, i;
 
@@ -3070,8 +3087,8 @@ static int process_hybrid_topology(struct feat_fd *ff,
 			goto error;
 	}
 
-	ff->ph->env.nr_hybrid_nodes = nr;
-	ff->ph->env.hybrid_nodes = nodes;
+	env->nr_hybrid_nodes = nr;
+	env->hybrid_nodes = nodes;
 	return 0;
 
 error:
@@ -3224,19 +3241,21 @@ static int process_bpf_btf(struct feat_fd *ff, void *data __maybe_unused)
 static int process_compressed(struct feat_fd *ff,
 			      void *data __maybe_unused)
 {
-	if (do_read_u32(ff, &(ff->ph->env.comp_ver)))
+	struct perf_env *env = &ff->ph->env;
+
+	if (do_read_u32(ff, &(env->comp_ver)))
 		return -1;
 
-	if (do_read_u32(ff, &(ff->ph->env.comp_type)))
+	if (do_read_u32(ff, &(env->comp_type)))
 		return -1;
 
-	if (do_read_u32(ff, &(ff->ph->env.comp_level)))
+	if (do_read_u32(ff, &(env->comp_level)))
 		return -1;
 
-	if (do_read_u32(ff, &(ff->ph->env.comp_ratio)))
+	if (do_read_u32(ff, &(env->comp_ratio)))
 		return -1;
 
-	if (do_read_u32(ff, &(ff->ph->env.comp_mmap_len)))
+	if (do_read_u32(ff, &(env->comp_mmap_len)))
 		return -1;
 
 	return 0;
@@ -3308,19 +3327,21 @@ static int __process_pmu_caps(struct feat_fd *ff, int *nr_caps,
 static int process_cpu_pmu_caps(struct feat_fd *ff,
 				void *data __maybe_unused)
 {
-	int ret = __process_pmu_caps(ff, &ff->ph->env.nr_cpu_pmu_caps,
-				     &ff->ph->env.cpu_pmu_caps,
-				     &ff->ph->env.max_branches,
-				     &ff->ph->env.br_cntr_nr,
-				     &ff->ph->env.br_cntr_width);
+	struct perf_env *env = &ff->ph->env;
+	int ret = __process_pmu_caps(ff, &env->nr_cpu_pmu_caps,
+				     &env->cpu_pmu_caps,
+				     &env->max_branches,
+				     &env->br_cntr_nr,
+				     &env->br_cntr_width);
 
-	if (!ret && !ff->ph->env.cpu_pmu_caps)
+	if (!ret && !env->cpu_pmu_caps)
 		pr_debug("cpu pmu capabilities not available\n");
 	return ret;
 }
 
 static int process_pmu_caps(struct feat_fd *ff, void *data __maybe_unused)
 {
+	struct perf_env *env = &ff->ph->env;
 	struct pmu_caps *pmu_caps;
 	u32 nr_pmu, i;
 	int ret;
@@ -3358,8 +3379,8 @@ static int process_pmu_caps(struct feat_fd *ff, void *data __maybe_unused)
 		}
 	}
 
-	ff->ph->env.nr_pmus_with_caps = nr_pmu;
-	ff->ph->env.pmu_caps = pmu_caps;
+	env->nr_pmus_with_caps = nr_pmu;
+	env->pmu_caps = pmu_caps;
 	return 0;
 
 err:
@@ -3657,6 +3678,7 @@ static int perf_session__do_write_header(struct perf_session *session,
 	struct perf_header *header = &session->header;
 	struct evsel *evsel;
 	struct feat_fd ff = {
+		.ph = header,
 		.fd = fd,
 	};
 	u64 attr_offset = sizeof(f_header), attr_size = 0;

From 5a156353e55e994627ac584e90b3b802e51e1ee2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:52 -0700
Subject: [PATCH 158/179] perf test: Avoid use perf_env

The perf_env global variable holds the host perf_env data but its use
is hit and miss. Switch to using local perf_env variables and ensure
scoped perf_env__init and perf_env__exit. This loses command line
setting of the perf_env, but this doesn't matter for tests. So the
perf_env is fully initialized, clear it with memset in perf_env__init.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-13-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/code-reading.c  |  5 +++-
 tools/perf/tests/dlfilter-test.c | 50 ++++++++++++++++++--------------
 tools/perf/util/env.c            |  1 +
 3 files changed, 33 insertions(+), 23 deletions(-)

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 6efb6b4bbcce..0ec7004f90fe 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -651,11 +651,13 @@ static int do_test_code_reading(bool try_kcore)
 	struct dso *dso;
 	const char *events[] = { "cycles", "cycles:u", "cpu-clock", "cpu-clock:u", NULL };
 	int evidx = 0;
+	struct perf_env host_env;
 
 	pid = getpid();
 
 	machine = machine__new_host();
-	machine->env = &perf_env;
+	perf_env__init(&host_env);
+	machine->env = &host_env;
 
 	ret = machine__create_kernel_maps(machine);
 	if (ret < 0) {
@@ -791,6 +793,7 @@ static int do_test_code_reading(bool try_kcore)
 	perf_cpu_map__put(cpus);
 	perf_thread_map__put(threads);
 	machine__delete(machine);
+	perf_env__exit(&host_env);
 
 	return err;
 }
diff --git a/tools/perf/tests/dlfilter-test.c b/tools/perf/tests/dlfilter-test.c
index 54f59d1246bc..6427e3382711 100644
--- a/tools/perf/tests/dlfilter-test.c
+++ b/tools/perf/tests/dlfilter-test.c
@@ -319,11 +319,12 @@ static int run_perf_script(struct test_data *td)
 
 static int test__dlfilter_test(struct test_data *td)
 {
+	struct perf_env host_env;
 	u64 sample_type = TEST_SAMPLE_TYPE;
 	pid_t pid = 12345;
 	pid_t tid = 12346;
 	u64 id = 99;
-	int err;
+	int err = TEST_OK;
 
 	if (get_dlfilters_path(td->name, td->dlfilters, PATH_MAX))
 		return test_result("dlfilters not found", TEST_SKIP);
@@ -353,37 +354,42 @@ static int test__dlfilter_test(struct test_data *td)
 
 	pr_debug("Creating new host machine structure\n");
 	td->machine = machine__new_host();
-	td->machine->env = &perf_env;
+	perf_env__init(&host_env);
+	td->machine->env = &host_env;
 
 	td->fd = creat(td->perf_data_file_name, 0644);
 	if (td->fd < 0)
 		return test_result("Failed to create test perf.data file", TEST_FAIL);
 
 	err = perf_header__write_pipe(td->fd);
-	if (err < 0)
-		return test_result("perf_header__write_pipe() failed", TEST_FAIL);
-
+	if (err < 0) {
+		err = test_result("perf_header__write_pipe() failed", TEST_FAIL);
+		goto out;
+	}
 	err = write_attr(td, sample_type, &id);
-	if (err)
-		return test_result("perf_event__synthesize_attr() failed", TEST_FAIL);
-
-	if (write_comm(td->fd, pid, tid, "test-prog"))
-		return TEST_FAIL;
-
-	if (write_mmap(td->fd, pid, tid, MAP_START, 0x10000, 0, td->prog_file_name))
-		return TEST_FAIL;
-
-	if (write_sample(td, sample_type, id, pid, tid) != TEST_OK)
-		return TEST_FAIL;
-
+	if (err) {
+		err = test_result("perf_event__synthesize_attr() failed", TEST_FAIL);
+		goto out;
+	}
+	if (write_comm(td->fd, pid, tid, "test-prog")) {
+		err = TEST_FAIL;
+		goto out;
+	}
+	if (write_mmap(td->fd, pid, tid, MAP_START, 0x10000, 0, td->prog_file_name)) {
+		err = TEST_FAIL;
+		goto out;
+	}
+	if (write_sample(td, sample_type, id, pid, tid) != TEST_OK) {
+		err = TEST_FAIL;
+		goto out;
+	}
 	if (verbose > 1)
 		system_cmd("%s script -i %s -D", td->perf, td->perf_data_file_name);
 
-	err = run_perf_script(td);
-	if (err)
-		return TEST_FAIL;
-
-	return TEST_OK;
+	err = run_perf_script(td) ? TEST_FAIL : TEST_OK;
+out:
+	perf_env__exit(&host_env);
+	return err;
 }
 
 static void unlink_path(const char *path)
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index ee51378fb0d9..c09159083bf0 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -271,6 +271,7 @@ void perf_env__exit(struct perf_env *env)
 
 void perf_env__init(struct perf_env *env)
 {
+	memset(env, 0, sizeof(*env));
 #ifdef HAVE_LIBBPF_SUPPORT
 	env->bpf_progs.infos = RB_ROOT;
 	env->bpf_progs.btfs = RB_ROOT;

From 740f7ba1e3be5d6f192dafc5efd0bd0a8e8567e2 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:53 -0700
Subject: [PATCH 159/179] perf session: Add host_env argument to
 perf_session__new

When creating a perf_session the host perf_env may or may not want to
be used. For example, `perf top` uses a host perf_env while `perf
inject` does not. Add a host_env argument to perf_session__new so that
sessions requiring a host perf_env can pass it in. Currently if none
is specified the global perf_env variable is used, but this will
change in later patches.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-14-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-inject.c | 3 ++-
 tools/perf/util/session.c   | 5 +++--
 tools/perf/util/session.h   | 5 +++--
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index f73350a3417a..40ba6a94f719 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -2539,7 +2539,8 @@ int cmd_inject(int argc, const char **argv)
 	inject.tool.bpf_metadata	= perf_event__repipe_op2_synth;
 	inject.tool.dont_split_sample_group = true;
 	inject.session = __perf_session__new(&data, &inject.tool,
-					     /*trace_event_repipe=*/inject.output.is_pipe);
+					     /*trace_event_repipe=*/inject.output.is_pipe,
+					     /*host_env=*/NULL);
 
 	if (IS_ERR(inject.session)) {
 		ret = PTR_ERR(inject.session);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index a851d9130abd..36532329a633 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -138,7 +138,8 @@ static int ordered_events__deliver_event(struct ordered_events *oe,
 
 struct perf_session *__perf_session__new(struct perf_data *data,
 					 struct perf_tool *tool,
-					 bool trace_event_repipe)
+					 bool trace_event_repipe,
+					 struct perf_env *host_env)
 {
 	int ret = -ENOMEM;
 	struct perf_session *session = zalloc(sizeof(*session));
@@ -191,7 +192,7 @@ struct perf_session *__perf_session__new(struct perf_data *data,
 				symbol_conf.kallsyms_name = perf_data__kallsyms_name(data);
 		}
 	} else  {
-		session->machines.host.env = &perf_env;
+		session->machines.host.env = host_env ?: &perf_env;
 	}
 	if (session->evlist)
 		session->evlist->session = session;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index e7f7464b838f..cf88d65a25cb 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -107,12 +107,13 @@ struct perf_tool;
 
 struct perf_session *__perf_session__new(struct perf_data *data,
 					 struct perf_tool *tool,
-					 bool trace_event_repipe);
+					 bool trace_event_repipe,
+					 struct perf_env *host_env);
 
 static inline struct perf_session *perf_session__new(struct perf_data *data,
 						     struct perf_tool *tool)
 {
-	return __perf_session__new(data, tool, /*trace_event_repipe=*/false);
+	return __perf_session__new(data, tool, /*trace_event_repipe=*/false, /*host_env=*/NULL);
 }
 
 void perf_session__delete(struct perf_session *session);

From aaa23571fe4bb7fb7549ad09dd56de5ca1bd289d Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:54 -0700
Subject: [PATCH 160/179] perf top: Make perf_env locally scoped

The use of the global host perf_env variable is potentially
inconsistent within the code. Switch perf top to using a locally
scoped variable that is generally accessed through the session.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-15-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-top.c | 41 +++++++++++++++++++++++++++-------------
 1 file changed, 28 insertions(+), 13 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 2760971d4c97..e9743f17bd0c 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1301,7 +1301,7 @@ static int __cmd_top(struct perf_top *top)
 	perf_set_multithreaded();
 
 	if (perf_hpp_list.socket) {
-		ret = perf_env__read_cpu_topology_map(&perf_env);
+		ret = perf_env__read_cpu_topology_map(perf_session__env(top->session));
 		if (ret < 0) {
 			char errbuf[BUFSIZ];
 			const char *err = str_error_r(-ret, errbuf, sizeof(errbuf));
@@ -1624,6 +1624,7 @@ int cmd_top(int argc, const char **argv)
 		NULL
 	};
 	int status = hists__init();
+	struct perf_env host_env;
 
 	if (status < 0)
 		return status;
@@ -1637,14 +1638,19 @@ int cmd_top(int argc, const char **argv)
 	if (top.evlist == NULL)
 		return -ENOMEM;
 
+	perf_env__init(&host_env);
 	status = perf_config(perf_top_config, &top);
 	if (status)
-		return status;
+		goto out_delete_evlist;
 	/*
 	 * Since the per arch annotation init routine may need the cpuid, read
 	 * it here, since we are not getting this from the perf.data header.
 	 */
-	status = perf_env__read_cpuid(&perf_env);
+	status = perf_env__set_cmdline(&host_env, argc, argv);
+	if (status)
+		goto out_delete_evlist;
+
+	status = perf_env__read_cpuid(&host_env);
 	if (status) {
 		/*
 		 * Some arches do not provide a get_cpuid(), so just use pr_debug, otherwise
@@ -1661,18 +1667,24 @@ int cmd_top(int argc, const char **argv)
 
 	if (disassembler_style) {
 		annotate_opts.disassembler_style = strdup(disassembler_style);
-		if (!annotate_opts.disassembler_style)
-			return -ENOMEM;
+		if (!annotate_opts.disassembler_style) {
+			status = -ENOMEM;
+			goto out_delete_evlist;
+		}
 	}
 	if (objdump_path) {
 		annotate_opts.objdump_path = strdup(objdump_path);
-		if (!annotate_opts.objdump_path)
-			return -ENOMEM;
+		if (!annotate_opts.objdump_path) {
+			status = -ENOMEM;
+			goto out_delete_evlist;
+		}
 	}
 	if (addr2line_path) {
 		symbol_conf.addr2line_path = strdup(addr2line_path);
-		if (!symbol_conf.addr2line_path)
-			return -ENOMEM;
+		if (!symbol_conf.addr2line_path) {
+			status = -ENOMEM;
+			goto out_delete_evlist;
+		}
 	}
 
 	status = symbol__validate_sym_arguments();
@@ -1735,7 +1747,7 @@ int cmd_top(int argc, const char **argv)
 		symbol_conf.show_branchflag_count = true;
 
 	if (opts->branch_stack) {
-		status = perf_env__read_core_pmu_caps(&perf_env);
+		status = perf_env__read_core_pmu_caps(&host_env);
 		if (status) {
 			pr_err("PMU capability data is not available\n");
 			goto out_delete_evlist;
@@ -1829,14 +1841,16 @@ int cmd_top(int argc, const char **argv)
 		perf_top__update_print_entries(&top);
 		signal(SIGWINCH, winch_sig);
 	}
-	top.session->env = &perf_env;
 
-	top.session = perf_session__new(NULL, NULL);
+	top.session = __perf_session__new(/*data=*/NULL, /*tool=*/NULL,
+					  /*trace_event_repipe=*/false,
+					  &host_env);
 	if (IS_ERR(top.session)) {
 		status = PTR_ERR(top.session);
 		top.session = NULL;
 		goto out_delete_evlist;
 	}
+	top.evlist->session = top.session;
 
 	if (!evlist__needs_bpf_sb_event(top.evlist))
 		top.record_opts.no_bpf_event = true;
@@ -1851,7 +1865,7 @@ int cmd_top(int argc, const char **argv)
 			goto out_delete_evlist;
 		}
 
-		if (evlist__add_bpf_sb_event(top.sb_evlist, &perf_env)) {
+		if (evlist__add_bpf_sb_event(top.sb_evlist, &host_env)) {
 			pr_err("Couldn't ask for PERF_RECORD_BPF_EVENT side band events.\n.");
 			status = -EINVAL;
 			goto out_delete_evlist;
@@ -1873,6 +1887,7 @@ int cmd_top(int argc, const char **argv)
 	evlist__delete(top.evlist);
 	perf_session__delete(top.session);
 	annotation_options__exit();
+	perf_env__exit(&host_env);
 
 	return status;
 }

From aa91baa09b2a3c38deff05b83410ce86833258d5 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:55 -0700
Subject: [PATCH 161/179] perf bench synthesize: Avoid use of global perf_env

The benchmark doesn't use a data file and so the header perf_env isn't
used. Stack allocate a host perf_env for use to avoid the use of the
global perf_env.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-16-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/bench/synthesize.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/tools/perf/bench/synthesize.c b/tools/perf/bench/synthesize.c
index 9b333276cbdb..b3d493697675 100644
--- a/tools/perf/bench/synthesize.c
+++ b/tools/perf/bench/synthesize.c
@@ -114,12 +114,16 @@ static int run_single_threaded(void)
 		.pid = "self",
 	};
 	struct perf_thread_map *threads;
+	struct perf_env host_env;
 	int err;
 
 	perf_set_singlethreaded();
-	session = perf_session__new(NULL, NULL);
+	perf_env__init(&host_env);
+	session = __perf_session__new(/*data=*/NULL, /*tool=*/NULL,
+				      /*trace_event_repipe=*/false, &host_env);
 	if (IS_ERR(session)) {
 		pr_err("Session creation failed.\n");
+		perf_env__exit(&host_env);
 		return PTR_ERR(session);
 	}
 	threads = thread_map__new_by_pid(getpid());
@@ -144,6 +148,7 @@ static int run_single_threaded(void)
 		perf_thread_map__put(threads);
 
 	perf_session__delete(session);
+	perf_env__exit(&host_env);
 	return err;
 }
 
@@ -154,17 +159,21 @@ static int do_run_multi_threaded(struct target *target,
 	u64 runtime_us;
 	unsigned int i;
 	double time_average, time_stddev, event_average, event_stddev;
-	int err;
+	int err = 0;
 	struct stats time_stats, event_stats;
 	struct perf_session *session;
+	struct perf_env host_env;
 
+	perf_env__init(&host_env);
 	init_stats(&time_stats);
 	init_stats(&event_stats);
 	for (i = 0; i < multi_iterations; i++) {
-		session = perf_session__new(NULL, NULL);
-		if (IS_ERR(session))
-			return PTR_ERR(session);
-
+		session = __perf_session__new(/*data=*/NULL, /*tool=*/NULL,
+					      /*trace_event_repipe=*/false, &host_env);
+		if (IS_ERR(session)) {
+			err = PTR_ERR(session);
+			goto err_out;
+		}
 		atomic_set(&event_count, 0);
 		gettimeofday(&start, NULL);
 		err = __machine__synthesize_threads(&session->machines.host,
@@ -175,7 +184,7 @@ static int do_run_multi_threaded(struct target *target,
 						nr_threads_synthesize);
 		if (err) {
 			perf_session__delete(session);
-			return err;
+			goto err_out;
 		}
 
 		gettimeofday(&end, NULL);
@@ -198,7 +207,9 @@ static int do_run_multi_threaded(struct target *target,
 
 	printf("    Average time per event %.3f usec\n",
 		time_average / event_average);
-	return 0;
+err_out:
+	perf_env__exit(&host_env);
+	return err;
 }
 
 static int run_multi_threaded(void)

From e481066388fe8003916461a54bf0ecffc02505a8 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:56 -0700
Subject: [PATCH 162/179] perf machine: Explicitly pass in host perf_env

When creating a machine for the host explicitly pass in a scoped
perf_env. This removes a use of the global perf_env.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-17-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-buildid-list.c     |  5 ++++-
 tools/perf/builtin-kallsyms.c         | 21 ++++++++++++++++-----
 tools/perf/builtin-trace.c            | 24 +++++++++++++++++-------
 tools/perf/tests/code-reading.c       |  3 +--
 tools/perf/tests/dlfilter-test.c      |  3 +--
 tools/perf/tests/dwarf-unwind.c       | 10 +++++++---
 tools/perf/tests/mmap-thread-lookup.c |  6 +++++-
 tools/perf/tests/symbols.c            |  8 +++++++-
 tools/perf/util/debug.c               |  9 ++++++++-
 tools/perf/util/machine.c             | 16 ++++++++--------
 tools/perf/util/machine.h             |  6 +++---
 tools/perf/util/probe-event.c         |  5 ++++-
 12 files changed, 81 insertions(+), 35 deletions(-)

diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 151cd84b6dfe..a91bbb34ac94 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -45,11 +45,14 @@ static int buildid__map_cb(struct map *map, void *arg __maybe_unused)
 
 static void buildid__show_kernel_maps(void)
 {
+	struct perf_env host_env;
 	struct machine *machine;
 
-	machine = machine__new_host();
+	perf_env__init(&host_env);
+	machine = machine__new_host(&host_env);
 	machine__for_each_kernel_map(machine, buildid__map_cb, NULL);
 	machine__delete(machine);
+	perf_env__exit(&host_env);
 }
 
 static int sysfs__fprintf_build_id(FILE *fp)
diff --git a/tools/perf/builtin-kallsyms.c b/tools/perf/builtin-kallsyms.c
index a3c2ffdc1af8..3c4339982b16 100644
--- a/tools/perf/builtin-kallsyms.c
+++ b/tools/perf/builtin-kallsyms.c
@@ -12,18 +12,28 @@
 #include <subcmd/parse-options.h>
 #include "debug.h"
 #include "dso.h"
+#include "env.h"
 #include "machine.h"
 #include "map.h"
 #include "symbol.h"
 
 static int __cmd_kallsyms(int argc, const char **argv)
 {
-	int i;
-	struct machine *machine = machine__new_kallsyms();
+	int i, err;
+	struct perf_env host_env;
+	struct machine *machine = NULL;
 
+
+	perf_env__init(&host_env);
+	err = perf_env__set_cmdline(&host_env, argc, argv);
+	if (err)
+		goto out;
+
+	machine = machine__new_kallsyms(&host_env);
 	if (machine == NULL) {
 		pr_err("Couldn't read /proc/kallsyms\n");
-		return -1;
+		err = -1;
+		goto out;
 	}
 
 	for (i = 0; i < argc; ++i) {
@@ -42,9 +52,10 @@ static int __cmd_kallsyms(int argc, const char **argv)
 			map__unmap_ip(map, symbol->start), map__unmap_ip(map, symbol->end),
 			symbol->start, symbol->end);
 	}
-
+out:
 	machine__delete(machine);
-	return 0;
+	perf_env__exit(&host_env);
+	return err;
 }
 
 int cmd_kallsyms(int argc, const char **argv)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0261f4eefe6d..5b53571de400 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -140,6 +140,7 @@ struct syscall_fmt {
 };
 
 struct trace {
+	struct perf_env		host_env;
 	struct perf_tool	tool;
 	struct {
 		/** Sorted sycall numbers used by the trace. */
@@ -1977,17 +1978,24 @@ static char *trace__machine__resolve_kernel_addr(void *vmachine, unsigned long l
 	return machine__resolve_kernel_addr(vmachine, addrp, modp);
 }
 
-static int trace__symbols_init(struct trace *trace, struct evlist *evlist)
+static int trace__symbols_init(struct trace *trace, int argc, const char **argv,
+			       struct evlist *evlist)
 {
 	int err = symbol__init(NULL);
 
 	if (err)
 		return err;
 
-	trace->host = machine__new_host();
-	if (trace->host == NULL)
-		return -ENOMEM;
+	perf_env__init(&trace->host_env);
+	err = perf_env__set_cmdline(&trace->host_env, argc, argv);
+	if (err)
+		goto out;
 
+	trace->host = machine__new_host(&trace->host_env);
+	if (trace->host == NULL) {
+		err = -ENOMEM;
+		goto out;
+	}
 	thread__set_priv_destructor(thread_trace__delete);
 
 	err = trace_event__register_resolver(trace->host, trace__machine__resolve_kernel_addr);
@@ -1998,9 +2006,10 @@ static int trace__symbols_init(struct trace *trace, struct evlist *evlist)
 					    evlist->core.threads, trace__tool_process,
 					    true, false, 1);
 out:
-	if (err)
+	if (err) {
+		perf_env__exit(&trace->host_env);
 		symbol__exit();
-
+	}
 	return err;
 }
 
@@ -2009,6 +2018,7 @@ static void trace__symbols__exit(struct trace *trace)
 	machine__exit(trace->host);
 	trace->host = NULL;
 
+	perf_env__exit(&trace->host_env);
 	symbol__exit();
 }
 
@@ -4428,7 +4438,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 		goto out_delete_evlist;
 	}
 
-	err = trace__symbols_init(trace, evlist);
+	err = trace__symbols_init(trace, argc, argv, evlist);
 	if (err < 0) {
 		fprintf(trace->output, "Problems initializing symbol libraries!\n");
 		goto out_delete_evlist;
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 0ec7004f90fe..9c2091310191 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -655,9 +655,8 @@ static int do_test_code_reading(bool try_kcore)
 
 	pid = getpid();
 
-	machine = machine__new_host();
 	perf_env__init(&host_env);
-	machine->env = &host_env;
+	machine = machine__new_host(&host_env);
 
 	ret = machine__create_kernel_maps(machine);
 	if (ret < 0) {
diff --git a/tools/perf/tests/dlfilter-test.c b/tools/perf/tests/dlfilter-test.c
index 6427e3382711..80a1c941138d 100644
--- a/tools/perf/tests/dlfilter-test.c
+++ b/tools/perf/tests/dlfilter-test.c
@@ -353,9 +353,8 @@ static int test__dlfilter_test(struct test_data *td)
 		return test_result("Failed to find program symbols", TEST_FAIL);
 
 	pr_debug("Creating new host machine structure\n");
-	td->machine = machine__new_host();
 	perf_env__init(&host_env);
-	td->machine->env = &host_env;
+	td->machine = machine__new_host(&host_env);
 
 	td->fd = creat(td->perf_data_file_name, 0644);
 	if (td->fd < 0)
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 525c46b7971a..9ed78d00fb87 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -7,6 +7,7 @@
 #include <unistd.h>
 #include "tests.h"
 #include "debug.h"
+#include "env.h"
 #include "machine.h"
 #include "event.h"
 #include "../util/unwind.h"
@@ -180,6 +181,7 @@ NO_TAIL_CALL_ATTRIBUTE noinline int test_dwarf_unwind__krava_1(struct thread *th
 noinline int test__dwarf_unwind(struct test_suite *test __maybe_unused,
 				int subtest __maybe_unused)
 {
+	struct perf_env host_env;
 	struct machine *machine;
 	struct thread *thread;
 	int err = -1;
@@ -188,15 +190,16 @@ noinline int test__dwarf_unwind(struct test_suite *test __maybe_unused,
 	callchain_param.record_mode = CALLCHAIN_DWARF;
 	dwarf_callchain_users = true;
 
-	machine = machine__new_live(/*kernel_maps=*/true, pid);
+	perf_env__init(&host_env);
+	machine = machine__new_live(&host_env, /*kernel_maps=*/true, pid);
 	if (!machine) {
 		pr_err("Could not get machine\n");
-		return -1;
+		goto out;
 	}
 
 	if (machine__create_kernel_maps(machine)) {
 		pr_err("Failed to create kernel maps\n");
-		return -1;
+		goto out;
 	}
 
 	if (verbose > 1)
@@ -213,6 +216,7 @@ noinline int test__dwarf_unwind(struct test_suite *test __maybe_unused,
 
  out:
 	machine__delete(machine);
+	perf_env__exit(&host_env);
 	return err;
 }
 
diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
index 446a3615d720..0c5619c6e6e9 100644
--- a/tools/perf/tests/mmap-thread-lookup.c
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -8,6 +8,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include "debug.h"
+#include "env.h"
 #include "event.h"
 #include "tests.h"
 #include "machine.h"
@@ -155,6 +156,7 @@ static int synth_process(struct machine *machine)
 
 static int mmap_events(synth_cb synth)
 {
+	struct perf_env host_env;
 	struct machine *machine;
 	int err, i;
 
@@ -167,7 +169,8 @@ static int mmap_events(synth_cb synth)
 	 */
 	TEST_ASSERT_VAL("failed to create threads", !threads_create());
 
-	machine = machine__new_host();
+	perf_env__init(&host_env);
+	machine = machine__new_host(&host_env);
 
 	dump_trace = verbose > 1 ? 1 : 0;
 
@@ -209,6 +212,7 @@ static int mmap_events(synth_cb synth)
 	}
 
 	machine__delete(machine);
+	perf_env__exit(&host_env);
 	return err;
 }
 
diff --git a/tools/perf/tests/symbols.c b/tools/perf/tests/symbols.c
index b07fdf831868..f4ffe5804f40 100644
--- a/tools/perf/tests/symbols.c
+++ b/tools/perf/tests/symbols.c
@@ -5,6 +5,7 @@
 #include <limits.h>
 #include "debug.h"
 #include "dso.h"
+#include "env.h"
 #include "machine.h"
 #include "thread.h"
 #include "symbol.h"
@@ -13,15 +14,18 @@
 #include "tests.h"
 
 struct test_info {
+	struct perf_env host_env;
 	struct machine *machine;
 	struct thread *thread;
 };
 
 static int init_test_info(struct test_info *ti)
 {
-	ti->machine = machine__new_host();
+	perf_env__init(&ti->host_env);
+	ti->machine = machine__new_host(&ti->host_env);
 	if (!ti->machine) {
 		pr_debug("machine__new_host() failed!\n");
+		perf_env__exit(&ti->host_env);
 		return TEST_FAIL;
 	}
 
@@ -29,6 +33,7 @@ static int init_test_info(struct test_info *ti)
 	ti->thread = machine__findnew_thread(ti->machine, 100, 100);
 	if (!ti->thread) {
 		pr_debug("machine__findnew_thread() failed!\n");
+		perf_env__exit(&ti->host_env);
 		return TEST_FAIL;
 	}
 
@@ -39,6 +44,7 @@ static void exit_test_info(struct test_info *ti)
 {
 	thread__put(ti->thread);
 	machine__delete(ti->machine);
+	perf_env__exit(&ti->host_env);
 }
 
 struct dso_map {
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 2878a7363ac8..1dfa4d0eec4d 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -17,6 +17,7 @@
 #include "addr_location.h"
 #include "color.h"
 #include "debug.h"
+#include "env.h"
 #include "event.h"
 #include "machine.h"
 #include "map.h"
@@ -309,8 +310,12 @@ void __dump_stack(FILE *file, void **stackdump, size_t stackdump_size)
 {
 	/* TODO: async safety. printf, malloc, etc. aren't safe inside a signal handler. */
 	pid_t pid = getpid();
-	struct machine *machine = machine__new_live(/*kernel_maps=*/false, pid);
+	struct machine *machine;
 	struct thread *thread = NULL;
+	struct perf_env host_env;
+
+	perf_env__init(&host_env);
+	machine = machine__new_live(&host_env, /*kernel_maps=*/false, pid);
 
 	if (machine)
 		thread = machine__find_thread(machine, pid, pid);
@@ -323,6 +328,7 @@ void __dump_stack(FILE *file, void **stackdump, size_t stackdump_size)
 		 */
 		backtrace_symbols_fd(stackdump, stackdump_size, fileno(file));
 		machine__delete(machine);
+		perf_env__exit(&host_env);
 		return;
 	}
 #endif
@@ -349,6 +355,7 @@ void __dump_stack(FILE *file, void **stackdump, size_t stackdump_size)
 	}
 	thread__put(thread);
 	machine__delete(machine);
+	perf_env__exit(&host_env);
 }
 
 /* Obtain a backtrace and print it to stdout. */
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 2ef8c1cfae1e..b5dd42588c91 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -129,7 +129,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 	return 0;
 }
 
-static struct machine *__machine__new_host(bool kernel_maps)
+static struct machine *__machine__new_host(struct perf_env *host_env, bool kernel_maps)
 {
 	struct machine *machine = malloc(sizeof(*machine));
 
@@ -142,13 +142,13 @@ static struct machine *__machine__new_host(bool kernel_maps)
 		free(machine);
 		return NULL;
 	}
-	machine->env = &perf_env;
+	machine->env = host_env;
 	return machine;
 }
 
-struct machine *machine__new_host(void)
+struct machine *machine__new_host(struct perf_env *host_env)
 {
-	return __machine__new_host(/*kernel_maps=*/true);
+	return __machine__new_host(host_env, /*kernel_maps=*/true);
 }
 
 static int mmap_handler(const struct perf_tool *tool __maybe_unused,
@@ -168,9 +168,9 @@ static int machine__init_live(struct machine *machine, pid_t pid)
 						  mmap_handler, machine, true);
 }
 
-struct machine *machine__new_live(bool kernel_maps, pid_t pid)
+struct machine *machine__new_live(struct perf_env *host_env, bool kernel_maps, pid_t pid)
 {
-	struct machine *machine = __machine__new_host(kernel_maps);
+	struct machine *machine = __machine__new_host(host_env, kernel_maps);
 
 	if (!machine)
 		return NULL;
@@ -182,9 +182,9 @@ struct machine *machine__new_live(bool kernel_maps, pid_t pid)
 	return machine;
 }
 
-struct machine *machine__new_kallsyms(void)
+struct machine *machine__new_kallsyms(struct perf_env *host_env)
 {
-	struct machine *machine = machine__new_host();
+	struct machine *machine = machine__new_host(host_env);
 	/*
 	 * FIXME:
 	 * 1) We should switch to machine__load_kallsyms(), i.e. not explicitly
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 180b369c366c..22a42c5825fa 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -169,9 +169,9 @@ struct thread *machine__findnew_guest_code(struct machine *machine, pid_t pid);
 void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
 void machines__set_comm_exec(struct machines *machines, bool comm_exec);
 
-struct machine *machine__new_host(void);
-struct machine *machine__new_kallsyms(void);
-struct machine *machine__new_live(bool kernel_maps, pid_t pid);
+struct machine *machine__new_host(struct perf_env *host_env);
+struct machine *machine__new_kallsyms(struct perf_env *host_env);
+struct machine *machine__new_live(struct perf_env *host_env, bool kernel_maps, pid_t pid);
 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
 void machine__exit(struct machine *machine);
 void machine__delete_threads(struct machine *machine);
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 57ad150f8c43..6ab2eb551b6c 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -75,12 +75,14 @@ int e_snprintf(char *str, size_t size, const char *format, ...)
 }
 
 static struct machine *host_machine;
+static struct perf_env host_env;
 
 /* Initialize symbol maps and path of vmlinux/modules */
 int init_probe_symbol_maps(bool user_only)
 {
 	int ret;
 
+	perf_env__init(&host_env);
 	symbol_conf.allow_aliases = true;
 	ret = symbol__init(NULL);
 	if (ret < 0) {
@@ -94,7 +96,7 @@ int init_probe_symbol_maps(bool user_only)
 	if (symbol_conf.vmlinux_name)
 		pr_debug("Use vmlinux: %s\n", symbol_conf.vmlinux_name);
 
-	host_machine = machine__new_host();
+	host_machine = machine__new_host(&host_env);
 	if (!host_machine) {
 		pr_debug("machine__new_host() failed.\n");
 		symbol__exit();
@@ -111,6 +113,7 @@ void exit_probe_symbol_maps(void)
 	machine__delete(host_machine);
 	host_machine = NULL;
 	symbol__exit();
+	perf_env__exit(&host_env);
 }
 
 static struct ref_reloc_sym *kernel_get_ref_reloc_sym(struct map **pmap)

From 69ac7472d28a21057275a396193f1bdcce6ba962 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:57 -0700
Subject: [PATCH 163/179] perf auxtrace: Pass perf_env from session through to
 mmap read

 auxtrace_mmap__read and auxtrace_mmap__read_snapshot end up calling
 `evsel__env(NULL)` which returns the global perf_env variable for the
 host. Their only call is in perf record. Rather than use the global
 variable pass through the perf_env for `perf record`.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-18-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-record.c |  8 ++++++--
 tools/perf/util/auxtrace.c  | 13 +++++++------
 tools/perf/util/auxtrace.h  |  6 ++++--
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8a829ddff6f2..7ea3a11aca70 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -775,7 +775,9 @@ static int record__auxtrace_mmap_read(struct record *rec,
 {
 	int ret;
 
-	ret = auxtrace_mmap__read(map, rec->itr, &rec->tool,
+	ret = auxtrace_mmap__read(map, rec->itr,
+				  perf_session__env(rec->session),
+				  &rec->tool,
 				  record__process_auxtrace);
 	if (ret < 0)
 		return ret;
@@ -791,7 +793,9 @@ static int record__auxtrace_mmap_read_snapshot(struct record *rec,
 {
 	int ret;
 
-	ret = auxtrace_mmap__read_snapshot(map, rec->itr, &rec->tool,
+	ret = auxtrace_mmap__read_snapshot(map, rec->itr,
+					   perf_session__env(rec->session),
+					   &rec->tool,
 					   record__process_auxtrace,
 					   rec->opts.auxtrace_snapshot_size);
 	if (ret < 0)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 03211c2623de..ebd32f1b8f12 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -1890,7 +1890,7 @@ int __weak compat_auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail)
 }
 
 static int __auxtrace_mmap__read(struct mmap *map,
-				 struct auxtrace_record *itr,
+				 struct auxtrace_record *itr, struct perf_env *env,
 				 const struct perf_tool *tool, process_auxtrace_t fn,
 				 bool snapshot, size_t snapshot_size)
 {
@@ -1900,7 +1900,7 @@ static int __auxtrace_mmap__read(struct mmap *map,
 	size_t size, head_off, old_off, len1, len2, padding;
 	union perf_event ev;
 	void *data1, *data2;
-	int kernel_is_64_bit = perf_env__kernel_is_64_bit(evsel__env(NULL));
+	int kernel_is_64_bit = perf_env__kernel_is_64_bit(env);
 
 	head = auxtrace_mmap__read_head(mm, kernel_is_64_bit);
 
@@ -2002,17 +2002,18 @@ static int __auxtrace_mmap__read(struct mmap *map,
 }
 
 int auxtrace_mmap__read(struct mmap *map, struct auxtrace_record *itr,
-			const struct perf_tool *tool, process_auxtrace_t fn)
+			struct perf_env *env, const struct perf_tool *tool,
+			process_auxtrace_t fn)
 {
-	return __auxtrace_mmap__read(map, itr, tool, fn, false, 0);
+	return __auxtrace_mmap__read(map, itr, env, tool, fn, false, 0);
 }
 
 int auxtrace_mmap__read_snapshot(struct mmap *map,
-				 struct auxtrace_record *itr,
+				 struct auxtrace_record *itr, struct perf_env *env,
 				 const struct perf_tool *tool, process_auxtrace_t fn,
 				 size_t snapshot_size)
 {
-	return __auxtrace_mmap__read(map, itr, tool, fn, true, snapshot_size);
+	return __auxtrace_mmap__read(map, itr, env, tool, fn, true, snapshot_size);
 }
 
 /**
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index b0db84d27b25..f001cbb68f8e 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -23,6 +23,7 @@ union perf_event;
 struct perf_session;
 struct evlist;
 struct evsel;
+struct perf_env;
 struct perf_tool;
 struct mmap;
 struct perf_sample;
@@ -512,10 +513,11 @@ typedef int (*process_auxtrace_t)(const struct perf_tool *tool,
 				  size_t len1, void *data2, size_t len2);
 
 int auxtrace_mmap__read(struct mmap *map, struct auxtrace_record *itr,
-			const struct perf_tool *tool, process_auxtrace_t fn);
+			struct perf_env *env, const struct perf_tool *tool,
+			process_auxtrace_t fn);
 
 int auxtrace_mmap__read_snapshot(struct mmap *map,
-				 struct auxtrace_record *itr,
+				 struct auxtrace_record *itr, struct perf_env *env,
 				 const struct perf_tool *tool, process_auxtrace_t fn,
 				 size_t snapshot_size);
 

From 003a86bce0728ad160bcb7c7566a4d40aee3c235 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:58 -0700
Subject: [PATCH 164/179] perf trace: Avoid global perf_env with evsel__env

There is no session in perf trace unless in replay mode, so in host
mode no session can be associated with the evlist. If the evsel__env
call fails resort to the host_env that's part of the trace. Remove
errno_to_name as it becomes a called once 1-line function once the
argument is turned into a perf_env, just call perf_env__arch_strerrno
directly.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-19-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-trace.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5b53571de400..fe737b3ac6e6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2898,13 +2898,6 @@ static int trace__fprintf_callchain(struct trace *trace, struct perf_sample *sam
 	return sample__fprintf_callchain(sample, 38, print_opts, get_tls_callchain_cursor(), symbol_conf.bt_stop_list, trace->output);
 }
 
-static const char *errno_to_name(struct evsel *evsel, int err)
-{
-	struct perf_env *env = evsel__env(evsel);
-
-	return perf_env__arch_strerrno(env, err);
-}
-
 static int trace__sys_exit(struct trace *trace, struct evsel *evsel,
 			   union perf_event *event __maybe_unused,
 			   struct perf_sample *sample)
@@ -2990,8 +2983,9 @@ static int trace__sys_exit(struct trace *trace, struct evsel *evsel,
 	} else if (ret < 0) {
 errno_print: {
 		char bf[STRERR_BUFSIZE];
-		const char *emsg = str_error_r(-ret, bf, sizeof(bf)),
-			   *e = errno_to_name(evsel, -ret);
+		struct perf_env *env = evsel__env(evsel) ?: &trace->host_env;
+		const char *emsg = str_error_r(-ret, bf, sizeof(bf));
+		const char *e = perf_env__arch_strerrno(env, err);
 
 		fprintf(trace->output, "-1 %s (%s)", e, emsg);
 	}

From 525a599badeeafba88a4fa0f913e5cf87e2d51ec Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:32:59 -0700
Subject: [PATCH 165/179] perf env: Remove global perf_env

The global perf_env was used for the host, but if a perf_env wasn't
easy to come by it was used in a lot of places where potentially
recorded and host data could be confused. Remove the global variable
as now the majority of accesses retrieve the perf_env for the host
from the session.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-20-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/perf.c           | 3 ---
 tools/perf/util/bpf-event.c | 2 +-
 tools/perf/util/env.c       | 2 --
 tools/perf/util/env.h       | 2 --
 tools/perf/util/evsel.c     | 2 +-
 tools/perf/util/session.c   | 3 ++-
 6 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index f0617cc41f5f..88c60ecf3395 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -346,12 +346,9 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 		use_pager = 1;
 	commit_pager_choice();
 
-	perf_env__init(&perf_env);
-	perf_env__set_cmdline(&perf_env, argc, argv);
 	status = p->fn(argc, argv);
 	perf_config__exit();
 	exit_browser(status);
-	perf_env__exit(&perf_env);
 
 	if (status)
 		return status & 0xff;
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index 664f361ef8c1..5b6d3e899e11 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -549,7 +549,7 @@ static int perf_event__synthesize_one_bpf_prog(struct perf_session *session,
 	 * for perf-record and perf-report use header.env;
 	 * otherwise, use global perf_env.
 	 */
-	env = session->data ? perf_session__env(session) : &perf_env;
+	env = perf_session__env(session);
 
 	arrays = 1UL << PERF_BPIL_JITED_KSYMS;
 	arrays |= 1UL << PERF_BPIL_JITED_FUNC_LENS;
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index c09159083bf0..c8c248754621 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -19,8 +19,6 @@
 #include "strbuf.h"
 #include "trace/beauty/beauty.h"
 
-struct perf_env perf_env;
-
 #ifdef HAVE_LIBBPF_SUPPORT
 #include "bpf-event.h"
 #include "bpf-utils.h"
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index d8df59072529..e00179787a34 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -150,8 +150,6 @@ enum perf_compress_type {
 struct bpf_prog_info_node;
 struct btf_node;
 
-extern struct perf_env perf_env;
-
 int perf_env__read_core_pmu_caps(struct perf_env *env);
 void perf_env__exit(struct perf_env *env);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3f766f240cc7..aa6efcc4404c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -3882,7 +3882,7 @@ struct perf_env *evsel__env(struct evsel *evsel)
 {
 	struct perf_session *session = evsel__session(evsel);
 
-	return session ? perf_session__env(session) : &perf_env;
+	return session ? perf_session__env(session) : NULL;
 }
 
 static int store_evsel_ids(struct evsel *evsel, struct evlist *evlist)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 36532329a633..2a79e6844f36 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -192,7 +192,8 @@ struct perf_session *__perf_session__new(struct perf_data *data,
 				symbol_conf.kallsyms_name = perf_data__kallsyms_name(data);
 		}
 	} else  {
-		session->machines.host.env = host_env ?: &perf_env;
+		assert(host_env != NULL);
+		session->machines.host.env = host_env;
 	}
 	if (session->evlist)
 		session->evlist->session = session;

From 8882095b1d4d785524a7a4df8e04e35cfd039142 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:33:00 -0700
Subject: [PATCH 166/179] perf sample: Remove arch notion of sample parsing

By definition arch sample parsing and synthesis will inhibit certain
kinds of cross-platform record then analysis (report, script,
etc.). Remove arch_perf_parse_sample_weight and
arch_perf_synthesize_sample_weight replacing with a common
implementation. Combine perf_sample p_stage_cyc and retire_lat as
weight3 to capture the differing uses regardless of compiled for
architecture.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-21-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/arch/powerpc/util/event.c       | 26 ---------------------
 tools/perf/arch/x86/tests/sample-parsing.c |  4 ++--
 tools/perf/arch/x86/util/event.c           | 27 ----------------------
 tools/perf/builtin-script.c                |  2 +-
 tools/perf/util/dlfilter.c                 |  2 +-
 tools/perf/util/event.h                    |  2 --
 tools/perf/util/evsel.c                    | 17 ++++++++++----
 tools/perf/util/hist.c                     |  4 ++--
 tools/perf/util/hist.h                     |  3 ++-
 tools/perf/util/intel-tpebs.c              |  4 ++--
 tools/perf/util/sample.h                   |  6 ++---
 tools/perf/util/session.c                  |  2 +-
 tools/perf/util/sort.c                     |  7 +++---
 tools/perf/util/synthetic-events.c         | 10 ++++++--
 14 files changed, 36 insertions(+), 80 deletions(-)

diff --git a/tools/perf/arch/powerpc/util/event.c b/tools/perf/arch/powerpc/util/event.c
index 77d8cc2b5691..024ac8b54c33 100644
--- a/tools/perf/arch/powerpc/util/event.c
+++ b/tools/perf/arch/powerpc/util/event.c
@@ -11,32 +11,6 @@
 #include "../../../util/debug.h"
 #include "../../../util/sample.h"
 
-void arch_perf_parse_sample_weight(struct perf_sample *data,
-				   const __u64 *array, u64 type)
-{
-	union perf_sample_weight weight;
-
-	weight.full = *array;
-	if (type & PERF_SAMPLE_WEIGHT)
-		data->weight = weight.full;
-	else {
-		data->weight = weight.var1_dw;
-		data->ins_lat = weight.var2_w;
-		data->p_stage_cyc = weight.var3_w;
-	}
-}
-
-void arch_perf_synthesize_sample_weight(const struct perf_sample *data,
-					__u64 *array, u64 type)
-{
-	*array = data->weight;
-
-	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
-		*array &= 0xffffffff;
-		*array |= ((u64)data->ins_lat << 32);
-	}
-}
-
 const char *arch_perf_header_entry(const char *se_header)
 {
 	if (!strcmp(se_header, "Local INSTR Latency"))
diff --git a/tools/perf/arch/x86/tests/sample-parsing.c b/tools/perf/arch/x86/tests/sample-parsing.c
index a061e8619267..22feec23e53d 100644
--- a/tools/perf/arch/x86/tests/sample-parsing.c
+++ b/tools/perf/arch/x86/tests/sample-parsing.c
@@ -29,7 +29,7 @@ static bool samples_same(const struct perf_sample *s1,
 {
 	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
 		COMP(ins_lat);
-		COMP(retire_lat);
+		COMP(weight3);
 	}
 
 	return true;
@@ -50,7 +50,7 @@ static int do_test(u64 sample_type)
 	struct perf_sample sample = {
 		.weight		= 101,
 		.ins_lat        = 102,
-		.retire_lat     = 103,
+		.weight3	= 103,
 	};
 	struct perf_sample sample_out;
 	size_t i, sz, bufsz;
diff --git a/tools/perf/arch/x86/util/event.c b/tools/perf/arch/x86/util/event.c
index a0400707180c..576c1c36046c 100644
--- a/tools/perf/arch/x86/util/event.c
+++ b/tools/perf/arch/x86/util/event.c
@@ -92,33 +92,6 @@ int perf_event__synthesize_extra_kmaps(const struct perf_tool *tool,
 
 #endif
 
-void arch_perf_parse_sample_weight(struct perf_sample *data,
-				   const __u64 *array, u64 type)
-{
-	union perf_sample_weight weight;
-
-	weight.full = *array;
-	if (type & PERF_SAMPLE_WEIGHT)
-		data->weight = weight.full;
-	else {
-		data->weight = weight.var1_dw;
-		data->ins_lat = weight.var2_w;
-		data->retire_lat = weight.var3_w;
-	}
-}
-
-void arch_perf_synthesize_sample_weight(const struct perf_sample *data,
-					__u64 *array, u64 type)
-{
-	*array = data->weight;
-
-	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
-		*array &= 0xffffffff;
-		*array |= ((u64)data->ins_lat << 32);
-		*array |= ((u64)data->retire_lat << 48);
-	}
-}
-
 const char *arch_perf_header_entry(const char *se_header)
 {
 	if (!strcmp(se_header, "Local Pipeline Stage Cycle"))
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index f2b5620165b4..d9fbdcf72f25 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2252,7 +2252,7 @@ static void process_event(struct perf_script *script,
 		fprintf(fp, "%16" PRIu16, sample->ins_lat);
 
 	if (PRINT_FIELD(RETIRE_LAT))
-		fprintf(fp, "%16" PRIu16, sample->retire_lat);
+		fprintf(fp, "%16" PRIu16, sample->weight3);
 
 	if (PRINT_FIELD(CGROUP)) {
 		const char *cgrp_name;
diff --git a/tools/perf/util/dlfilter.c b/tools/perf/util/dlfilter.c
index ddacef881af2..c0afcbd954f8 100644
--- a/tools/perf/util/dlfilter.c
+++ b/tools/perf/util/dlfilter.c
@@ -513,6 +513,7 @@ int dlfilter__do_filter_event(struct dlfilter *d,
 	d->d_addr_al   = &d_addr_al;
 
 	d_sample.size  = sizeof(d_sample);
+	d_sample.p_stage_cyc = sample->weight3;
 	d_ip_al.size   = 0; /* To indicate d_ip_al is not initialized */
 	d_addr_al.size = 0; /* To indicate d_addr_al is not initialized */
 
@@ -526,7 +527,6 @@ int dlfilter__do_filter_event(struct dlfilter *d,
 	ASSIGN(period);
 	ASSIGN(weight);
 	ASSIGN(ins_lat);
-	ASSIGN(p_stage_cyc);
 	ASSIGN(transaction);
 	ASSIGN(insn_cnt);
 	ASSIGN(cyc_cnt);
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 67ad4a2014bc..b13385a6068b 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -391,8 +391,6 @@ extern unsigned int proc_map_timeout;
 #define PAGE_SIZE_NAME_LEN	32
 char *get_page_size_name(u64 size, char *str);
 
-void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type);
-void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *array, u64 type);
 const char *arch_perf_header_entry(const char *se_header);
 int arch_support_sort_key(const char *sort_key);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index aa6efcc4404c..3d27e9bdd66b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2880,11 +2880,18 @@ perf_event__check_size(union perf_event *event, unsigned int sample_size)
 	return 0;
 }
 
-void __weak arch_perf_parse_sample_weight(struct perf_sample *data,
-					  const __u64 *array,
-					  u64 type __maybe_unused)
+static void perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type)
 {
-	data->weight = *array;
+	union perf_sample_weight weight;
+
+	weight.full = *array;
+	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
+		data->weight = weight.var1_dw;
+		data->ins_lat = weight.var2_w;
+		data->weight3 = weight.var3_w;
+	} else {
+		data->weight = weight.full;
+	}
 }
 
 u64 evsel__bitfield_swap_branch_flags(u64 value)
@@ -3270,7 +3277,7 @@ int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
 
 	if (type & PERF_SAMPLE_WEIGHT_TYPE) {
 		OVERFLOW_CHECK_u64(array);
-		arch_perf_parse_sample_weight(data, array, type);
+		perf_parse_sample_weight(data, array, type);
 		array++;
 	}
 
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index afc6855327ab..64ff427040c3 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -829,7 +829,7 @@ __hists__add_entry(struct hists *hists,
 			.period	= sample->period,
 			.weight1 = sample->weight,
 			.weight2 = sample->ins_lat,
-			.weight3 = sample->p_stage_cyc,
+			.weight3 = sample->weight3,
 			.latency = al->latency,
 		},
 		.parent = sym_parent,
@@ -846,7 +846,7 @@ __hists__add_entry(struct hists *hists,
 		.time = hist_time(sample->time),
 		.weight = sample->weight,
 		.ins_lat = sample->ins_lat,
-		.p_stage_cyc = sample->p_stage_cyc,
+		.weight3 = sample->weight3,
 		.simd_flags = sample->simd_flags,
 	}, *he = hists__findnew_entry(hists, &entry, al, sample_self);
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index c64254088fc7..70438d03ca9c 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -255,7 +255,8 @@ struct hist_entry {
 	u64			code_page_size;
 	u64			weight;
 	u64			ins_lat;
-	u64			p_stage_cyc;
+	/** @weight3: On x86 holds retire_lat, on powerpc holds p_stage_cyc. */
+	u64			weight3;
 	s32			socket;
 	s32			cpu;
 	int			parallelism;
diff --git a/tools/perf/util/intel-tpebs.c b/tools/perf/util/intel-tpebs.c
index 3b92ebf5c112..8c9aee157ec4 100644
--- a/tools/perf/util/intel-tpebs.c
+++ b/tools/perf/util/intel-tpebs.c
@@ -210,8 +210,8 @@ static int process_sample_event(const struct perf_tool *tool __maybe_unused,
 	 * latency value will be used. Save the number of samples and the sum of
 	 * retire latency value for each event.
 	 */
-	t->last = sample->retire_lat;
-	update_stats(&t->stats, sample->retire_lat);
+	t->last = sample->weight3;
+	update_stats(&t->stats, sample->weight3);
 	mutex_unlock(tpebs_mtx_get());
 	return 0;
 }
diff --git a/tools/perf/util/sample.h b/tools/perf/util/sample.h
index 0e96240052e9..fae834144ef4 100644
--- a/tools/perf/util/sample.h
+++ b/tools/perf/util/sample.h
@@ -104,10 +104,8 @@ struct perf_sample {
 	u8  cpumode;
 	u16 misc;
 	u16 ins_lat;
-	union {
-		u16 p_stage_cyc;
-		u16 retire_lat;
-	};
+	/** @weight3: On x86 holds retire_lat, on powerpc holds p_stage_cyc. */
+	u16 weight3;
 	bool no_hw_idx;		/* No hw_idx collected in branch_stack */
 	char insn[MAX_INSN];
 	void *raw_data;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 2a79e6844f36..26ae078278cd 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1099,7 +1099,7 @@ static void dump_sample(struct evsel *evsel, union perf_event *event,
 		printf("... weight: %" PRIu64 "", sample->weight);
 			if (sample_type & PERF_SAMPLE_WEIGHT_STRUCT) {
 				printf(",0x%"PRIx16"", sample->ins_lat);
-				printf(",0x%"PRIx16"", sample->p_stage_cyc);
+				printf(",0x%"PRIx16"", sample->weight3);
 			}
 		printf("\n");
 	}
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 7969d64a47bf..0ba2ce1b1c07 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1884,21 +1884,20 @@ struct sort_entry sort_global_ins_lat = {
 static int64_t
 sort__p_stage_cyc_cmp(struct hist_entry *left, struct hist_entry *right)
 {
-	return left->p_stage_cyc - right->p_stage_cyc;
+	return left->weight3 - right->weight3;
 }
 
 static int hist_entry__global_p_stage_cyc_snprintf(struct hist_entry *he, char *bf,
 					size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%-*u", width,
-			he->p_stage_cyc * he->stat.nr_events);
+	return repsep_snprintf(bf, size, "%-*u", width, he->weight3 * he->stat.nr_events);
 }
 
 
 static int hist_entry__p_stage_cyc_snprintf(struct hist_entry *he, char *bf,
 					size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%-*u", width, he->p_stage_cyc);
+	return repsep_snprintf(bf, size, "%-*u", width, he->weight3);
 }
 
 struct sort_entry sort_local_p_stage_cyc = {
diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
index e7ca3f5eb493..cb2c1ace304a 100644
--- a/tools/perf/util/synthetic-events.c
+++ b/tools/perf/util/synthetic-events.c
@@ -1573,10 +1573,16 @@ size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
 	return result;
 }
 
-void __weak arch_perf_synthesize_sample_weight(const struct perf_sample *data,
+static void perf_synthesize_sample_weight(const struct perf_sample *data,
 					       __u64 *array, u64 type __maybe_unused)
 {
 	*array = data->weight;
+
+	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
+		*array &= 0xffffffff;
+		*array |= ((u64)data->ins_lat << 32);
+		*array |= ((u64)data->weight3 << 48);
+	}
 }
 
 static __u64 *copy_read_group_values(__u64 *array, __u64 read_format,
@@ -1736,7 +1742,7 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type, u64 read_fo
 	}
 
 	if (type & PERF_SAMPLE_WEIGHT_TYPE) {
-		arch_perf_synthesize_sample_weight(sample, array, type);
+		perf_synthesize_sample_weight(sample, array, type);
 		array++;
 	}
 

From a563c9f3bb8c23416f3e72edfbc75d1a4937f7e0 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:33:01 -0700
Subject: [PATCH 167/179] perf test: Move PERF_SAMPLE_WEIGHT_STRUCT parsing to
 common test

test__x86_sample_parsing is identical to test__sample_parsing except
it explicitly tested PERF_SAMPLE_WEIGHT_STRUCT. Now the parsing code
is common move the PERF_SAMPLE_WEIGHT_STRUCT to the common sample
parsing test and remove the x86 version.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-22-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/arch/x86/include/arch-tests.h   |   1 -
 tools/perf/arch/x86/tests/Build            |   1 -
 tools/perf/arch/x86/tests/arch-tests.c     |   2 -
 tools/perf/arch/x86/tests/sample-parsing.c | 125 ---------------------
 tools/perf/tests/sample-parsing.c          |  14 +++
 5 files changed, 14 insertions(+), 129 deletions(-)
 delete mode 100644 tools/perf/arch/x86/tests/sample-parsing.c

diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h
index 8713e9122d4c..7d65b9e51840 100644
--- a/tools/perf/arch/x86/include/arch-tests.h
+++ b/tools/perf/arch/x86/include/arch-tests.h
@@ -14,7 +14,6 @@ int test__insn_x86(struct test_suite *test, int subtest);
 int test__intel_pt_pkt_decoder(struct test_suite *test, int subtest);
 int test__intel_pt_hybrid_compat(struct test_suite *test, int subtest);
 int test__bp_modify(struct test_suite *test, int subtest);
-int test__x86_sample_parsing(struct test_suite *test, int subtest);
 int test__amd_ibs_via_core_pmu(struct test_suite *test, int subtest);
 int test__amd_ibs_period(struct test_suite *test, int subtest);
 int test__hybrid(struct test_suite *test, int subtest);
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index 311b6b53d3d8..7790b3e20f4e 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -2,7 +2,6 @@ perf-test-$(CONFIG_DWARF_UNWIND) += regs_load.o
 perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 
 perf-test-y += arch-tests.o
-perf-test-y += sample-parsing.o
 perf-test-y += hybrid.o
 perf-test-$(CONFIG_AUXTRACE) += intel-pt-test.o
 ifeq ($(CONFIG_EXTRA_TESTS),y)
diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c
index 29ec1861ccef..8f9cfeaa170f 100644
--- a/tools/perf/arch/x86/tests/arch-tests.c
+++ b/tools/perf/arch/x86/tests/arch-tests.c
@@ -23,7 +23,6 @@ struct test_suite suite__intel_pt = {
 #if defined(__x86_64__)
 DEFINE_SUITE("x86 bp modify", bp_modify);
 #endif
-DEFINE_SUITE("x86 Sample parsing", x86_sample_parsing);
 DEFINE_SUITE("AMD IBS via core pmu", amd_ibs_via_core_pmu);
 DEFINE_SUITE_EXCLUSIVE("AMD IBS sample period", amd_ibs_period);
 static struct test_case hybrid_tests[] = {
@@ -49,7 +48,6 @@ struct test_suite *arch_tests[] = {
 #if defined(__x86_64__)
 	&suite__bp_modify,
 #endif
-	&suite__x86_sample_parsing,
 	&suite__amd_ibs_via_core_pmu,
 	&suite__amd_ibs_period,
 	&suite__hybrid,
diff --git a/tools/perf/arch/x86/tests/sample-parsing.c b/tools/perf/arch/x86/tests/sample-parsing.c
deleted file mode 100644
index 22feec23e53d..000000000000
--- a/tools/perf/arch/x86/tests/sample-parsing.c
+++ /dev/null
@@ -1,125 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <stdbool.h>
-#include <inttypes.h>
-#include <stdlib.h>
-#include <string.h>
-#include <linux/bitops.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-
-#include "event.h"
-#include "evsel.h"
-#include "debug.h"
-#include "util/sample.h"
-#include "util/synthetic-events.h"
-
-#include "tests/tests.h"
-#include "arch-tests.h"
-
-#define COMP(m) do {					\
-	if (s1->m != s2->m) {				\
-		pr_debug("Samples differ at '"#m"'\n");	\
-		return false;				\
-	}						\
-} while (0)
-
-static bool samples_same(const struct perf_sample *s1,
-			 const struct perf_sample *s2,
-			 u64 type)
-{
-	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
-		COMP(ins_lat);
-		COMP(weight3);
-	}
-
-	return true;
-}
-
-static int do_test(u64 sample_type)
-{
-	struct evsel evsel = {
-		.needs_swap = false,
-		.core = {
-			. attr = {
-				.sample_type = sample_type,
-				.read_format = 0,
-			},
-		},
-	};
-	union perf_event *event;
-	struct perf_sample sample = {
-		.weight		= 101,
-		.ins_lat        = 102,
-		.weight3	= 103,
-	};
-	struct perf_sample sample_out;
-	size_t i, sz, bufsz;
-	int err, ret = -1;
-
-	sz = perf_event__sample_event_size(&sample, sample_type, 0);
-	bufsz = sz + 4096; /* Add a bit for overrun checking */
-	event = malloc(bufsz);
-	if (!event) {
-		pr_debug("malloc failed\n");
-		return -1;
-	}
-
-	memset(event, 0xff, bufsz);
-	event->header.type = PERF_RECORD_SAMPLE;
-	event->header.misc = 0;
-	event->header.size = sz;
-
-	err = perf_event__synthesize_sample(event, sample_type, 0, &sample);
-	if (err) {
-		pr_debug("%s failed for sample_type %#"PRIx64", error %d\n",
-			 "perf_event__synthesize_sample", sample_type, err);
-		goto out_free;
-	}
-
-	/* The data does not contain 0xff so we use that to check the size */
-	for (i = bufsz; i > 0; i--) {
-		if (*(i - 1 + (u8 *)event) != 0xff)
-			break;
-	}
-	if (i != sz) {
-		pr_debug("Event size mismatch: actual %zu vs expected %zu\n",
-			 i, sz);
-		goto out_free;
-	}
-
-	evsel.sample_size = __evsel__sample_size(sample_type);
-
-	err = evsel__parse_sample(&evsel, event, &sample_out);
-	if (err) {
-		pr_debug("%s failed for sample_type %#"PRIx64", error %d\n",
-			 "evsel__parse_sample", sample_type, err);
-		goto out_free;
-	}
-
-	if (!samples_same(&sample, &sample_out, sample_type)) {
-		pr_debug("parsing failed for sample_type %#"PRIx64"\n",
-			 sample_type);
-		goto out_free;
-	}
-
-	ret = 0;
-out_free:
-	free(event);
-
-	return ret;
-}
-
-/**
- * test__x86_sample_parsing - test X86 specific sample parsing
- *
- * This function implements a test that synthesizes a sample event, parses it
- * and then checks that the parsed sample matches the original sample. If the
- * test passes %0 is returned, otherwise %-1 is returned.
- *
- * For now, the PERF_SAMPLE_WEIGHT_STRUCT is the only X86 specific sample type.
- * The test only checks the PERF_SAMPLE_WEIGHT_STRUCT type.
- */
-int test__x86_sample_parsing(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
-{
-	return do_test(PERF_SAMPLE_WEIGHT_STRUCT);
-}
diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 72411580f869..a7327c942ca2 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -152,6 +152,12 @@ static bool samples_same(struct perf_sample *s1,
 	if (type & PERF_SAMPLE_WEIGHT)
 		COMP(weight);
 
+	if (type & PERF_SAMPLE_WEIGHT_STRUCT) {
+		COMP(weight);
+		COMP(ins_lat);
+		COMP(weight3);
+	}
+
 	if (type & PERF_SAMPLE_DATA_SRC)
 		COMP(data_src);
 
@@ -269,6 +275,8 @@ static int do_test(u64 sample_type, u64 sample_regs, u64 read_format)
 		.cgroup		= 114,
 		.data_page_size = 115,
 		.code_page_size = 116,
+		.ins_lat	= 117,
+		.weight3	= 118,
 		.aux_sample	= {
 			.size	= sizeof(aux_data),
 			.data	= (void *)aux_data,
@@ -439,6 +447,12 @@ static int test__sample_parsing(struct test_suite *test __maybe_unused, int subt
 		if (err)
 			return err;
 	}
+	sample_type = (PERF_SAMPLE_MAX - 1) & ~PERF_SAMPLE_WEIGHT_STRUCT;
+	for (i = 0; i < ARRAY_SIZE(rf); i++) {
+		err = do_test(sample_type, sample_regs, rf[i]);
+		if (err)
+			return err;
+	}
 
 	return 0;
 }

From 6e19839a80b8713b836722ba9d99a3ab12cfb651 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 24 Jul 2025 09:33:02 -0700
Subject: [PATCH 168/179] perf sort: Use perf_env to set arch sort keys and
 header

Previously arch_support_sort_key and arch_perf_header_entry used a
weak symbol to compile as appropriate for x86 and powerpc. A
limitation to this is that the handling of a data file could vary in
cross-platform development. Change to using the perf_env of the
current session to determine the architecture kind and set the sort
key and header entries as appropriate.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250724163302.596743-23-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/arch/powerpc/util/Build   |  1 -
 tools/perf/arch/powerpc/util/event.c | 34 ----------------
 tools/perf/arch/x86/util/event.c     | 19 ---------
 tools/perf/builtin-annotate.c        |  2 +-
 tools/perf/builtin-c2c.c             | 53 ++++++++++++++-----------
 tools/perf/builtin-diff.c            |  2 +-
 tools/perf/builtin-report.c          |  2 +-
 tools/perf/builtin-top.c             | 22 +++++------
 tools/perf/tests/hists_cumulate.c    |  8 ++--
 tools/perf/tests/hists_filter.c      |  8 ++--
 tools/perf/tests/hists_link.c        |  8 ++--
 tools/perf/tests/hists_output.c      | 10 ++---
 tools/perf/util/event.h              |  3 --
 tools/perf/util/sort.c               | 59 ++++++++++++++++++++--------
 tools/perf/util/sort.h               |  5 ++-
 15 files changed, 106 insertions(+), 130 deletions(-)
 delete mode 100644 tools/perf/arch/powerpc/util/event.c

diff --git a/tools/perf/arch/powerpc/util/Build b/tools/perf/arch/powerpc/util/Build
index ed82715080f9..fdd6a77a3432 100644
--- a/tools/perf/arch/powerpc/util/Build
+++ b/tools/perf/arch/powerpc/util/Build
@@ -5,7 +5,6 @@ perf-util-y += mem-events.o
 perf-util-y += pmu.o
 perf-util-y += sym-handling.o
 perf-util-y += evsel.o
-perf-util-y += event.o
 
 perf-util-$(CONFIG_LIBDW) += skip-callchain-idx.o
 
diff --git a/tools/perf/arch/powerpc/util/event.c b/tools/perf/arch/powerpc/util/event.c
deleted file mode 100644
index 024ac8b54c33..000000000000
--- a/tools/perf/arch/powerpc/util/event.c
+++ /dev/null
@@ -1,34 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/zalloc.h>
-
-#include "../../../util/event.h"
-#include "../../../util/synthetic-events.h"
-#include "../../../util/machine.h"
-#include "../../../util/tool.h"
-#include "../../../util/map.h"
-#include "../../../util/debug.h"
-#include "../../../util/sample.h"
-
-const char *arch_perf_header_entry(const char *se_header)
-{
-	if (!strcmp(se_header, "Local INSTR Latency"))
-		return "Finish Cyc";
-	else if (!strcmp(se_header, "INSTR Latency"))
-		return "Global Finish_cyc";
-	else if (!strcmp(se_header, "Local Pipeline Stage Cycle"))
-		return "Dispatch Cyc";
-	else if (!strcmp(se_header, "Pipeline Stage Cycle"))
-		return "Global Dispatch_cyc";
-	return se_header;
-}
-
-int arch_support_sort_key(const char *sort_key)
-{
-	if (!strcmp(sort_key, "p_stage_cyc"))
-		return 1;
-	if (!strcmp(sort_key, "local_p_stage_cyc"))
-		return 1;
-	return 0;
-}
diff --git a/tools/perf/arch/x86/util/event.c b/tools/perf/arch/x86/util/event.c
index 576c1c36046c..3cd384317739 100644
--- a/tools/perf/arch/x86/util/event.c
+++ b/tools/perf/arch/x86/util/event.c
@@ -91,22 +91,3 @@ int perf_event__synthesize_extra_kmaps(const struct perf_tool *tool,
 }
 
 #endif
-
-const char *arch_perf_header_entry(const char *se_header)
-{
-	if (!strcmp(se_header, "Local Pipeline Stage Cycle"))
-		return "Local Retire Latency";
-	else if (!strcmp(se_header, "Pipeline Stage Cycle"))
-		return "Retire Latency";
-
-	return se_header;
-}
-
-int arch_support_sort_key(const char *sort_key)
-{
-	if (!strcmp(sort_key, "p_stage_cyc"))
-		return 1;
-	if (!strcmp(sort_key, "local_p_stage_cyc"))
-		return 1;
-	return 0;
-}
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 326593862998..5d57d2913f3d 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -947,7 +947,7 @@ int cmd_annotate(int argc, const char **argv)
 			annotate_opts.show_br_cntr = true;
 	}
 
-	if (setup_sorting(NULL) < 0)
+	if (setup_sorting(/*evlist=*/NULL, perf_session__env(annotate.session)) < 0)
 		usage_with_options(annotate_usage, options);
 
 	ret = __cmd_annotate(&annotate);
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 8cb36d9433f8..9e9ff471ddd1 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -195,12 +195,14 @@ static struct hist_entry_ops c2c_entry_ops = {
 
 static int c2c_hists__init(struct c2c_hists *hists,
 			   const char *sort,
-			   int nr_header_lines);
+			   int nr_header_lines,
+			   struct perf_env *env);
 
 static struct c2c_hists*
 he__get_c2c_hists(struct hist_entry *he,
 		  const char *sort,
-		  int nr_header_lines)
+		  int nr_header_lines,
+		  struct perf_env *env)
 {
 	struct c2c_hist_entry *c2c_he;
 	struct c2c_hists *hists;
@@ -214,7 +216,7 @@ he__get_c2c_hists(struct hist_entry *he,
 	if (!hists)
 		return NULL;
 
-	ret = c2c_hists__init(hists, sort, nr_header_lines);
+	ret = c2c_hists__init(hists, sort, nr_header_lines, env);
 	if (ret) {
 		free(hists);
 		return NULL;
@@ -350,7 +352,7 @@ static int process_sample_event(const struct perf_tool *tool __maybe_unused,
 
 		mi = mi_dup;
 
-		c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
+		c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2, machine->env);
 		if (!c2c_hists)
 			goto free_mi;
 
@@ -1966,7 +1968,8 @@ static struct c2c_fmt *get_format(const char *name)
 	return c2c_fmt;
 }
 
-static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
+static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name,
+				  struct perf_env *env __maybe_unused)
 {
 	struct c2c_fmt *c2c_fmt = get_format(name);
 	int level = 0;
@@ -1980,14 +1983,14 @@ static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
 	return 0;
 }
 
-static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
+static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name, struct perf_env *env)
 {
 	struct c2c_fmt *c2c_fmt = get_format(name);
 	struct c2c_dimension *dim;
 
 	if (!c2c_fmt) {
 		reset_dimensions();
-		return sort_dimension__add(hpp_list, name, NULL, 0);
+		return sort_dimension__add(hpp_list, name, /*evlist=*/NULL, env, /*level=*/0);
 	}
 
 	dim = c2c_fmt->dim;
@@ -2008,7 +2011,7 @@ static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
 										\
 		for (tok = strtok_r((char *)_list, ", ", &tmp);			\
 				tok; tok = strtok_r(NULL, ", ", &tmp)) {	\
-			ret = _fn(hpp_list, tok);				\
+			ret = _fn(hpp_list, tok, env);				\
 			if (ret == -EINVAL) {					\
 				pr_err("Invalid --fields key: `%s'", tok);	\
 				break;						\
@@ -2021,7 +2024,8 @@ static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
 
 static int hpp_list__parse(struct perf_hpp_list *hpp_list,
 			   const char *output_,
-			   const char *sort_)
+			   const char *sort_,
+			   struct perf_env *env)
 {
 	char *output = output_ ? strdup(output_) : NULL;
 	char *sort   = sort_   ? strdup(sort_) : NULL;
@@ -2052,7 +2056,8 @@ static int hpp_list__parse(struct perf_hpp_list *hpp_list,
 
 static int c2c_hists__init(struct c2c_hists *hists,
 			   const char *sort,
-			   int nr_header_lines)
+			   int nr_header_lines,
+			   struct perf_env *env)
 {
 	__hists__init(&hists->hists, &hists->list);
 
@@ -2066,15 +2071,16 @@ static int c2c_hists__init(struct c2c_hists *hists,
 	/* Overload number of header lines.*/
 	hists->list.nr_header_lines = nr_header_lines;
 
-	return hpp_list__parse(&hists->list, NULL, sort);
+	return hpp_list__parse(&hists->list, /*output=*/NULL, sort, env);
 }
 
 static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
 			     const char *output,
-			     const char *sort)
+			     const char *sort,
+			     struct perf_env *env)
 {
 	perf_hpp__reset_output_field(&c2c_hists->list);
-	return hpp_list__parse(&c2c_hists->list, output, sort);
+	return hpp_list__parse(&c2c_hists->list, output, sort, env);
 }
 
 #define DISPLAY_LINE_LIMIT  0.001
@@ -2207,8 +2213,9 @@ static int filter_cb(struct hist_entry *he, void *arg __maybe_unused)
 	return 0;
 }
 
-static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
+static int resort_cl_cb(struct hist_entry *he, void *arg)
 {
+	struct perf_env *env = arg;
 	struct c2c_hist_entry *c2c_he;
 	struct c2c_hists *c2c_hists;
 	bool display = he__display(he, &c2c.shared_clines_stats);
@@ -2222,7 +2229,7 @@ static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
 		c2c_he->cacheline_idx = idx++;
 		calc_width(c2c_he);
 
-		c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
+		c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort, env);
 
 		hists__collapse_resort(&c2c_hists->hists, NULL);
 		hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
@@ -2334,7 +2341,7 @@ static int resort_shared_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
 	return 0;
 }
 
-static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
+static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb, void *arg)
 {
 	struct rb_node *next = rb_first_cached(&hists->entries);
 	int ret = 0;
@@ -2343,7 +2350,7 @@ static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
 		struct hist_entry *he;
 
 		he = rb_entry(next, struct hist_entry, rb_node);
-		ret = cb(he, NULL);
+		ret = cb(he, arg);
 		if (ret)
 			break;
 		next = rb_next(&he->rb_node);
@@ -2449,7 +2456,7 @@ static void print_cacheline(struct c2c_hists *c2c_hists,
 	hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false);
 }
 
-static void print_pareto(FILE *out)
+static void print_pareto(FILE *out, struct perf_env *env)
 {
 	struct perf_hpp_list hpp_list;
 	struct rb_node *nd;
@@ -2474,7 +2481,7 @@ static void print_pareto(FILE *out)
 			    "dcacheline";
 
 	perf_hpp_list__init(&hpp_list);
-	ret = hpp_list__parse(&hpp_list, cl_output, NULL);
+	ret = hpp_list__parse(&hpp_list, cl_output, /*evlist=*/NULL, env);
 
 	if (WARN_ONCE(ret, "failed to setup sort entries\n"))
 		return;
@@ -2539,7 +2546,7 @@ static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
 	fprintf(out, "=================================================\n");
 	fprintf(out, "#\n");
 
-	print_pareto(out);
+	print_pareto(out, perf_session__env(session));
 }
 
 #ifdef HAVE_SLANG_SUPPORT
@@ -3097,7 +3104,7 @@ static int perf_c2c__report(int argc, const char **argv)
 		goto out_session;
 	}
 
-	err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
+	err = c2c_hists__init(&c2c.hists, "dcacheline", 2, perf_session__env(session));
 	if (err) {
 		pr_debug("Failed to initialize hists\n");
 		goto out_session;
@@ -3181,13 +3188,13 @@ static int perf_c2c__report(int argc, const char **argv)
 	else if (c2c.display == DISPLAY_SNP_PEER)
 		sort_str = "tot_peer";
 
-	c2c_hists__reinit(&c2c.hists, output_str, sort_str);
+	c2c_hists__reinit(&c2c.hists, output_str, sort_str, perf_session__env(session));
 
 	ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
 
 	hists__collapse_resort(&c2c.hists.hists, NULL);
 	hists__output_resort_cb(&c2c.hists.hists, &prog, resort_shared_cl_cb);
-	hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
+	hists__iterate_cb(&c2c.hists.hists, resort_cl_cb, perf_session__env(session));
 
 	ui_progress__finish();
 
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index ae490d58af92..53d5ea4a6a4f 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -2003,7 +2003,7 @@ int cmd_diff(int argc, const char **argv)
 		sort__mode = SORT_MODE__DIFF;
 	}
 
-	if (setup_sorting(NULL) < 0)
+	if (setup_sorting(/*evlist=*/NULL, perf_session__env(data__files[0].session)) < 0)
 		usage_with_options(diff_usage, options);
 
 	setup_pager();
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ada8e0166c78..35df04dad2fd 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1790,7 +1790,7 @@ int cmd_report(int argc, const char **argv)
 	}
 
 	if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
-	    (setup_sorting(session->evlist) < 0)) {
+	    (setup_sorting(session->evlist, perf_session__env(session)) < 0)) {
 		if (sort_order)
 			parse_options_usage(report_usage, options, "s", 1);
 		if (field_order)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index e9743f17bd0c..a11f629c7d76 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1767,7 +1767,17 @@ int cmd_top(int argc, const char **argv)
 
 	setup_browser(false);
 
-	if (setup_sorting(top.evlist) < 0) {
+	top.session = __perf_session__new(/*data=*/NULL, /*tool=*/NULL,
+					  /*trace_event_repipe=*/false,
+					  &host_env);
+	if (IS_ERR(top.session)) {
+		status = PTR_ERR(top.session);
+		top.session = NULL;
+		goto out_delete_evlist;
+	}
+	top.evlist->session = top.session;
+
+	if (setup_sorting(top.evlist, perf_session__env(top.session)) < 0) {
 		if (sort_order)
 			parse_options_usage(top_usage, options, "s", 1);
 		if (field_order)
@@ -1842,16 +1852,6 @@ int cmd_top(int argc, const char **argv)
 		signal(SIGWINCH, winch_sig);
 	}
 
-	top.session = __perf_session__new(/*data=*/NULL, /*tool=*/NULL,
-					  /*trace_event_repipe=*/false,
-					  &host_env);
-	if (IS_ERR(top.session)) {
-		status = PTR_ERR(top.session);
-		top.session = NULL;
-		goto out_delete_evlist;
-	}
-	top.evlist->session = top.session;
-
 	if (!evlist__needs_bpf_sb_event(top.evlist))
 		top.record_opts.no_bpf_event = true;
 
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 1e0f5a310fd5..3eb9ef8d7ec6 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -295,7 +295,7 @@ static int test1(struct evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = false;
 	evsel__reset_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -442,7 +442,7 @@ static int test2(struct evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = false;
 	evsel__set_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -500,7 +500,7 @@ static int test3(struct evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = true;
 	evsel__reset_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 	callchain_register_param(&callchain_param);
 
 	err = add_hist_entries(hists, machine);
@@ -684,7 +684,7 @@ static int test4(struct evsel *evsel, struct machine *machine)
 	symbol_conf.cumulate_callchain = true;
 	evsel__set_sample_bit(evsel, CALLCHAIN);
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	callchain_param = callchain_param_default;
 	callchain_register_param(&callchain_param);
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 4b2e4f2fbe48..1cebd20cc91c 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -131,10 +131,6 @@ static int test__hists_filter(struct test_suite *test __maybe_unused, int subtes
 		goto out;
 	err = TEST_FAIL;
 
-	/* default sort order (comm,dso,sym) will be used */
-	if (setup_sorting(NULL) < 0)
-		goto out;
-
 	machines__init(&machines);
 
 	/* setup threads/dso/map/symbols also */
@@ -145,6 +141,10 @@ static int test__hists_filter(struct test_suite *test __maybe_unused, int subtes
 	if (verbose > 1)
 		machine__fprintf(machine, stderr);
 
+	/* default sort order (comm,dso,sym) will be used */
+	if (setup_sorting(evlist, machine->env) < 0)
+		goto out;
+
 	/* process sample events */
 	err = add_hist_entries(evlist, machine);
 	if (err < 0)
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 5b6f1e883466..996f5f0b3bd1 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -303,10 +303,6 @@ static int test__hists_link(struct test_suite *test __maybe_unused, int subtest
 		goto out;
 
 	err = TEST_FAIL;
-	/* default sort order (comm,dso,sym) will be used */
-	if (setup_sorting(NULL) < 0)
-		goto out;
-
 	machines__init(&machines);
 
 	/* setup threads/dso/map/symbols also */
@@ -317,6 +313,10 @@ static int test__hists_link(struct test_suite *test __maybe_unused, int subtest
 	if (verbose > 1)
 		machine__fprintf(machine, stderr);
 
+	/* default sort order (comm,dso,sym) will be used */
+	if (setup_sorting(evlist, machine->env) < 0)
+		goto out;
+
 	/* process sample events */
 	err = add_hist_entries(evlist, machine);
 	if (err < 0)
diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c
index 33b5cc8352a7..ee5ec8bda60e 100644
--- a/tools/perf/tests/hists_output.c
+++ b/tools/perf/tests/hists_output.c
@@ -146,7 +146,7 @@ static int test1(struct evsel *evsel, struct machine *machine)
 	field_order = NULL;
 	sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	/*
 	 * expected output:
@@ -248,7 +248,7 @@ static int test2(struct evsel *evsel, struct machine *machine)
 	field_order = "overhead,cpu";
 	sort_order = "pid";
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	/*
 	 * expected output:
@@ -304,7 +304,7 @@ static int test3(struct evsel *evsel, struct machine *machine)
 	field_order = "comm,overhead,dso";
 	sort_order = NULL;
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	/*
 	 * expected output:
@@ -378,7 +378,7 @@ static int test4(struct evsel *evsel, struct machine *machine)
 	field_order = "dso,sym,comm,overhead,dso";
 	sort_order = "sym";
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	/*
 	 * expected output:
@@ -480,7 +480,7 @@ static int test5(struct evsel *evsel, struct machine *machine)
 	field_order = "cpu,pid,comm,dso,sym";
 	sort_order = "dso,pid";
 
-	setup_sorting(NULL);
+	setup_sorting(/*evlist=*/NULL, machine->env);
 
 	/*
 	 * expected output:
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index b13385a6068b..e40d16d3246c 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -391,9 +391,6 @@ extern unsigned int proc_map_timeout;
 #define PAGE_SIZE_NAME_LEN	32
 char *get_page_size_name(u64 size, char *str);
 
-const char *arch_perf_header_entry(const char *se_header);
-int arch_support_sort_key(const char *sort_key);
-
 static inline bool perf_event_header__cpumode_is_guest(u8 cpumode)
 {
 	return cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 0ba2ce1b1c07..f3a565b0e230 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2530,19 +2530,44 @@ struct sort_dimension {
 	int			taken;
 };
 
-int __weak arch_support_sort_key(const char *sort_key __maybe_unused)
+static int arch_support_sort_key(const char *sort_key, struct perf_env *env)
 {
+	const char *arch = perf_env__arch(env);
+
+	if (!strcmp("x86", arch) || !strcmp("powerpc", arch)) {
+		if (!strcmp(sort_key, "p_stage_cyc"))
+			return 1;
+		if (!strcmp(sort_key, "local_p_stage_cyc"))
+			return 1;
+	}
 	return 0;
 }
 
-const char * __weak arch_perf_header_entry(const char *se_header)
+static const char *arch_perf_header_entry(const char *se_header, struct perf_env *env)
 {
+	const char *arch = perf_env__arch(env);
+
+	if (!strcmp("x86", arch)) {
+		if (!strcmp(se_header, "Local Pipeline Stage Cycle"))
+			return "Local Retire Latency";
+		else if (!strcmp(se_header, "Pipeline Stage Cycle"))
+			return "Retire Latency";
+	} else if (!strcmp("powerpc", arch)) {
+		if (!strcmp(se_header, "Local INSTR Latency"))
+			return "Finish Cyc";
+		else if (!strcmp(se_header, "INSTR Latency"))
+			return "Global Finish_cyc";
+		else if (!strcmp(se_header, "Local Pipeline Stage Cycle"))
+			return "Dispatch Cyc";
+		else if (!strcmp(se_header, "Pipeline Stage Cycle"))
+			return "Global Dispatch_cyc";
+	}
 	return se_header;
 }
 
-static void sort_dimension_add_dynamic_header(struct sort_dimension *sd)
+static void sort_dimension_add_dynamic_header(struct sort_dimension *sd, struct perf_env *env)
 {
-	sd->entry->se_header = arch_perf_header_entry(sd->entry->se_header);
+	sd->entry->se_header = arch_perf_header_entry(sd->entry->se_header, env);
 }
 
 #define DIM(d, n, func) [d] = { .name = n, .entry = &(func) }
@@ -3594,7 +3619,7 @@ int hpp_dimension__add_output(unsigned col, bool implicit)
 }
 
 int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
-			struct evlist *evlist,
+			struct evlist *evlist, struct perf_env *env,
 			int level)
 {
 	unsigned int i, j;
@@ -3607,7 +3632,7 @@ int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
 	 */
 	for (j = 0; j < ARRAY_SIZE(arch_specific_sort_keys); j++) {
 		if (!strcmp(arch_specific_sort_keys[j], tok) &&
-				!arch_support_sort_key(tok)) {
+		    !arch_support_sort_key(tok, env)) {
 			return 0;
 		}
 	}
@@ -3620,7 +3645,7 @@ int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
 
 		for (j = 0; j < ARRAY_SIZE(dynamic_headers); j++) {
 			if (sd->name && !strcmp(dynamic_headers[j], sd->name))
-				sort_dimension_add_dynamic_header(sd);
+				sort_dimension_add_dynamic_header(sd, env);
 		}
 
 		if (sd->entry == &sort_parent && parent_pattern) {
@@ -3716,13 +3741,13 @@ int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
 }
 
 /* This should match with sort_dimension__add() above */
-static bool is_hpp_sort_key(const char *key)
+static bool is_hpp_sort_key(const char *key, struct perf_env *env)
 {
 	unsigned i;
 
 	for (i = 0; i < ARRAY_SIZE(arch_specific_sort_keys); i++) {
 		if (!strcmp(arch_specific_sort_keys[i], key) &&
-		    !arch_support_sort_key(key)) {
+		    !arch_support_sort_key(key, env)) {
 			return false;
 		}
 	}
@@ -3744,7 +3769,7 @@ static bool is_hpp_sort_key(const char *key)
 }
 
 static int setup_sort_list(struct perf_hpp_list *list, char *str,
-			   struct evlist *evlist)
+			   struct evlist *evlist, struct perf_env *env)
 {
 	char *tmp, *tok;
 	int ret = 0;
@@ -3773,7 +3798,7 @@ static int setup_sort_list(struct perf_hpp_list *list, char *str,
 		}
 
 		if (*tok) {
-			if (is_hpp_sort_key(tok)) {
+			if (is_hpp_sort_key(tok, env)) {
 				/* keep output (hpp) sort keys in the same level */
 				if (prev_was_hpp) {
 					bool next_same = (level == next_level);
@@ -3786,7 +3811,7 @@ static int setup_sort_list(struct perf_hpp_list *list, char *str,
 				prev_was_hpp = false;
 			}
 
-			ret = sort_dimension__add(list, tok, evlist, level);
+			ret = sort_dimension__add(list, tok, evlist, env, level);
 			if (ret == -EINVAL) {
 				if (!cacheline_size() && !strncasecmp(tok, "dcacheline", strlen(tok)))
 					ui__error("The \"dcacheline\" --sort key needs to know the cacheline size and it couldn't be determined on this system");
@@ -3915,7 +3940,7 @@ static char *setup_overhead(char *keys)
 	return keys;
 }
 
-static int __setup_sorting(struct evlist *evlist)
+static int __setup_sorting(struct evlist *evlist, struct perf_env *env)
 {
 	char *str;
 	const char *sort_keys;
@@ -3955,7 +3980,7 @@ static int __setup_sorting(struct evlist *evlist)
 		}
 	}
 
-	ret = setup_sort_list(&perf_hpp_list, str, evlist);
+	ret = setup_sort_list(&perf_hpp_list, str, evlist, env);
 
 	free(str);
 	return ret;
@@ -4191,16 +4216,16 @@ static int __setup_output_field(void)
 	return ret;
 }
 
-int setup_sorting(struct evlist *evlist)
+int setup_sorting(struct evlist *evlist, struct perf_env *env)
 {
 	int err;
 
-	err = __setup_sorting(evlist);
+	err = __setup_sorting(evlist, env);
 	if (err < 0)
 		return err;
 
 	if (parent_pattern != default_parent_pattern) {
-		err = sort_dimension__add(&perf_hpp_list, "parent", evlist, -1);
+		err = sort_dimension__add(&perf_hpp_list, "parent", evlist, env, -1);
 		if (err < 0)
 			return err;
 	}
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index a742ab7f3c67..d7787958e06b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -6,6 +6,7 @@
 #include "hist.h"
 
 struct option;
+struct perf_env;
 
 extern regex_t parent_regex;
 extern const char *sort_order;
@@ -130,7 +131,7 @@ extern struct sort_entry sort_thread;
 
 struct evlist;
 struct tep_handle;
-int setup_sorting(struct evlist *evlist);
+int setup_sorting(struct evlist *evlist, struct perf_env *env);
 int setup_output_field(void);
 void reset_output_field(void);
 void sort__setup_elide(FILE *fp);
@@ -145,7 +146,7 @@ bool is_strict_order(const char *order);
 int hpp_dimension__add_output(unsigned col, bool implicit);
 void reset_dimensions(void);
 int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
-			struct evlist *evlist,
+			struct evlist *evlist, struct perf_env *env,
 			int level);
 int output_field_add(struct perf_hpp_list *list, const char *tok, int *level);
 int64_t

From d89c58068aa667295fa75d0613c869b612bd6249 Mon Sep 17 00:00:00 2001
From: Blake Jones <blakejones@google.com>
Date: Fri, 25 Jul 2025 17:40:23 -0700
Subject: [PATCH 169/179] perf test: Fix comment ordering

The previous commit that introduced this test overlooked a behavior of
"perf test list", causing it to print "SPDX-License-Identifier: GPL-2.0"
as a description for that test.  This reorders the comments to fix that
issue.

Fixes: edf2cadf01e8 ("perf test: add test for BPF metadata collection")
Signed-off-by: Blake Jones <blakejones@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250726004023.3466563-1-blakejones@google.com
[ update the commit message a little bit ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/test_bpf_metadata.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/test_bpf_metadata.sh b/tools/perf/tests/shell/test_bpf_metadata.sh
index bc9aef161664..69e3c2055134 100755
--- a/tools/perf/tests/shell/test_bpf_metadata.sh
+++ b/tools/perf/tests/shell/test_bpf_metadata.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
+# BPF metadata collection test
 #
-# BPF metadata collection test.
+# SPDX-License-Identifier: GPL-2.0
 
 set -e
 

From af470fb532fc803c4c582d15b4bd394682a77a15 Mon Sep 17 00:00:00 2001
From: Chen Pei <cp0613@linux.alibaba.com>
Date: Sat, 26 Jul 2025 19:15:32 +0800
Subject: [PATCH 170/179] perf tools: Remove libtraceevent in .gitignore

The libtraceevent has been removed from the source tree, and .gitignore
needs to be updated as well.

Fixes: 4171925aa9f3f7bf ("tools lib traceevent: Remove libtraceevent")
Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250726111532.8031-1-cp0613@linux.alibaba.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/.gitignore | 2 --
 1 file changed, 2 deletions(-)

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 5aaf73df6700..b64302a76144 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -48,8 +48,6 @@ libbpf/
 libperf/
 libsubcmd/
 libsymbol/
-libtraceevent/
-libtraceevent_plugins/
 fixdep
 Documentation/doc.dep
 python_ext_build/

From 9957d8c801fe0cb905a9443d7a88e6a051f81105 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:48 -0700
Subject: [PATCH 171/179] perf jevents: Add common software event json

Add json for software events so that in perf list the events can have
a description.  Common json exists for the tool PMU but it has no
sysfs equivalent. Modify the map_for_pmu code to return the common map
(rather than an architecture specific one) when a PMU with a common
name is being looked for, this allows the events to be found.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 .../arch/common/common/software.json          |  92 ++++++
 tools/perf/pmu-events/empty-pmu-events.c      | 266 +++++++++++-------
 tools/perf/pmu-events/jevents.py              |  15 +-
 3 files changed, 264 insertions(+), 109 deletions(-)
 create mode 100644 tools/perf/pmu-events/arch/common/common/software.json

diff --git a/tools/perf/pmu-events/arch/common/common/software.json b/tools/perf/pmu-events/arch/common/common/software.json
new file mode 100644
index 000000000000..f2551f1107fd
--- /dev/null
+++ b/tools/perf/pmu-events/arch/common/common/software.json
@@ -0,0 +1,92 @@
+[
+  {
+    "Unit": "software",
+    "EventName": "cpu-clock",
+    "BriefDescription": "Per-CPU high-resolution timer based event",
+    "ConfigCode": "0"
+  },
+  {
+    "Unit": "software",
+    "EventName": "task-clock",
+    "BriefDescription": "Per-task high-resolution timer based event",
+    "ConfigCode": "1"
+  },
+  {
+    "Unit": "software",
+    "EventName": "faults",
+    "BriefDescription": "Number of page faults [This event is an alias of page-faults]",
+    "ConfigCode": "2"
+  },
+  {
+    "Unit": "software",
+    "EventName": "page-faults",
+    "BriefDescription": "Number of page faults [This event is an alias of faults]",
+    "ConfigCode": "2"
+  },
+  {
+    "Unit": "software",
+    "EventName": "context-switches",
+    "BriefDescription": "Number of context switches [This event is an alias of cs]",
+    "ConfigCode": "3"
+  },
+  {
+    "Unit": "software",
+    "EventName": "cs",
+    "BriefDescription": "Number of context switches [This event is an alias of context-switches]",
+    "ConfigCode": "3"
+  },
+  {
+    "Unit": "software",
+    "EventName": "cpu-migrations",
+    "BriefDescription": "Number of times a process has migrated to a new CPU [This event is an alias of migrations]",
+    "ConfigCode": "4"
+  },
+  {
+    "Unit": "software",
+    "EventName": "migrations",
+    "BriefDescription": "Number of times a process has migrated to a new CPU [This event is an alias of cpu-migrations]",
+    "ConfigCode": "4"
+  },
+  {
+    "Unit": "software",
+    "EventName": "minor-faults",
+    "BriefDescription": "Number of minor page faults. Minor faults don't require I/O to handle",
+    "ConfigCode": "5"
+  },
+  {
+    "Unit": "software",
+    "EventName": "major-faults",
+    "BriefDescription": "Number of major page faults. Major faults require I/O to handle",
+    "ConfigCode": "6"
+  },
+  {
+    "Unit": "software",
+    "EventName": "alignment-faults",
+    "BriefDescription": "Number of kernel handled memory alignment faults",
+    "ConfigCode": "7"
+  },
+  {
+    "Unit": "software",
+    "EventName": "emulation-faults",
+    "BriefDescription": "Number of kernel handled unimplemented instruction faults handled through emulation",
+    "ConfigCode": "8"
+  },
+  {
+    "Unit": "software",
+    "EventName": "dummy",
+    "BriefDescription": "A placeholder event that doesn't count anything",
+    "ConfigCode": "9"
+  },
+  {
+    "Unit": "software",
+    "EventName": "bpf-output",
+    "BriefDescription": "An event used by BPF programs to write to the perf ring buffer",
+    "ConfigCode": "10"
+  },
+  {
+    "Unit": "software",
+    "EventName": "cgroup-switches",
+    "BriefDescription": "Number of context switches to a task in a different cgroup",
+    "ConfigCode": "11"
+  }
+]
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
index a4569a74db07..041c598b16d8 100644
--- a/tools/perf/pmu-events/empty-pmu-events.c
+++ b/tools/perf/pmu-events/empty-pmu-events.c
@@ -19,109 +19,147 @@ struct pmu_table_entry {
 };
 
 static const char *const big_c_string =
-/* offset=0 */ "tool\000"
-/* offset=5 */ "duration_time\000tool\000Wall clock interval time in nanoseconds\000config=1\000\00000\000\000\000\000\000"
-/* offset=81 */ "user_time\000tool\000User (non-kernel) time in nanoseconds\000config=2\000\00000\000\000\000\000\000"
-/* offset=151 */ "system_time\000tool\000System/kernel time in nanoseconds\000config=3\000\00000\000\000\000\000\000"
-/* offset=219 */ "has_pmem\000tool\0001 if persistent memory installed otherwise 0\000config=4\000\00000\000\000\000\000\000"
-/* offset=295 */ "num_cores\000tool\000Number of cores. A core consists of 1 or more thread, with each thread being associated with a logical Linux CPU\000config=5\000\00000\000\000\000\000\000"
-/* offset=440 */ "num_cpus\000tool\000Number of logical Linux CPUs. There may be multiple such CPUs on a core\000config=6\000\00000\000\000\000\000\000"
-/* offset=543 */ "num_cpus_online\000tool\000Number of online logical Linux CPUs. There may be multiple such CPUs on a core\000config=7\000\00000\000\000\000\000\000"
-/* offset=660 */ "num_dies\000tool\000Number of dies. Each die has 1 or more cores\000config=8\000\00000\000\000\000\000\000"
-/* offset=736 */ "num_packages\000tool\000Number of packages. Each package has 1 or more die\000config=9\000\00000\000\000\000\000\000"
-/* offset=822 */ "slots\000tool\000Number of functional units that in parallel can execute parts of an instruction\000config=0xa\000\00000\000\000\000\000\000"
-/* offset=932 */ "smt_on\000tool\0001 if simultaneous multithreading (aka hyperthreading) is enable otherwise 0\000config=0xb\000\00000\000\000\000\000\000"
-/* offset=1039 */ "system_tsc_freq\000tool\000The amount a Time Stamp Counter (TSC) increases per second\000config=0xc\000\00000\000\000\000\000\000"
-/* offset=1138 */ "default_core\000"
-/* offset=1151 */ "bp_l1_btb_correct\000branch\000L1 BTB Correction\000event=0x8a\000\00000\000\000\000\000\000"
-/* offset=1213 */ "bp_l2_btb_correct\000branch\000L2 BTB Correction\000event=0x8b\000\00000\000\000\000\000\000"
-/* offset=1275 */ "l3_cache_rd\000cache\000L3 cache access, read\000event=0x40\000\00000\000\000\000\000Attributable Level 3 cache access, read\000"
-/* offset=1373 */ "segment_reg_loads.any\000other\000Number of segment register loads\000event=6,period=200000,umask=0x80\000\00000\000\000\000\000\000"
-/* offset=1475 */ "dispatch_blocked.any\000other\000Memory cluster signals to block micro-op dispatch for any reason\000event=9,period=200000,umask=0x20\000\00000\000\000\000\000\000"
-/* offset=1608 */ "eist_trans\000other\000Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions\000event=0x3a,period=200000\000\00000\000\000\000\000\000"
-/* offset=1726 */ "hisi_sccl,ddrc\000"
-/* offset=1741 */ "uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000"
-/* offset=1811 */ "uncore_cbox\000"
-/* offset=1823 */ "unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000"
-/* offset=1977 */ "event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000"
-/* offset=2031 */ "event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000"
-/* offset=2089 */ "hisi_sccl,l3c\000"
-/* offset=2103 */ "uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000"
-/* offset=2171 */ "uncore_imc_free_running\000"
-/* offset=2195 */ "uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000"
-/* offset=2275 */ "uncore_imc\000"
-/* offset=2286 */ "uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000"
-/* offset=2351 */ "uncore_sys_ddr_pmu\000"
-/* offset=2370 */ "sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000"
-/* offset=2446 */ "uncore_sys_ccn_pmu\000"
-/* offset=2465 */ "sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000"
-/* offset=2542 */ "uncore_sys_cmn_pmu\000"
-/* offset=2561 */ "sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000"
-/* offset=2704 */ "CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000"
-/* offset=2726 */ "IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000"
-/* offset=2789 */ "Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000"
-/* offset=2955 */ "dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
-/* offset=3019 */ "icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
-/* offset=3086 */ "cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000"
-/* offset=3157 */ "DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000"
-/* offset=3251 */ "DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000"
-/* offset=3385 */ "DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000"
-/* offset=3449 */ "DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000"
-/* offset=3517 */ "DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000"
-/* offset=3587 */ "M1\000\000ipc + M2\000\000\000\000\000\000\000\00000"
-/* offset=3609 */ "M2\000\000ipc + M1\000\000\000\000\000\000\000\00000"
-/* offset=3631 */ "M3\000\0001 / M3\000\000\000\000\000\000\000\00000"
-/* offset=3651 */ "L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000"
+/* offset=0 */ "software\000"
+/* offset=9 */ "cpu-clock\000software\000Per-CPU high-resolution timer based event\000config=0\000\00000\000\000\000\000\000"
+/* offset=87 */ "task-clock\000software\000Per-task high-resolution timer based event\000config=1\000\00000\000\000\000\000\000"
+/* offset=167 */ "faults\000software\000Number of page faults [This event is an alias of page-faults]\000config=2\000\00000\000\000\000\000\000"
+/* offset=262 */ "page-faults\000software\000Number of page faults [This event is an alias of faults]\000config=2\000\00000\000\000\000\000\000"
+/* offset=357 */ "context-switches\000software\000Number of context switches [This event is an alias of cs]\000config=3\000\00000\000\000\000\000\000"
+/* offset=458 */ "cs\000software\000Number of context switches [This event is an alias of context-switches]\000config=3\000\00000\000\000\000\000\000"
+/* offset=559 */ "cpu-migrations\000software\000Number of times a process has migrated to a new CPU [This event is an alias of migrations]\000config=4\000\00000\000\000\000\000\000"
+/* offset=691 */ "migrations\000software\000Number of times a process has migrated to a new CPU [This event is an alias of cpu-migrations]\000config=4\000\00000\000\000\000\000\000"
+/* offset=823 */ "minor-faults\000software\000Number of minor page faults. Minor faults don't require I/O to handle\000config=5\000\00000\000\000\000\000\000"
+/* offset=932 */ "major-faults\000software\000Number of major page faults. Major faults require I/O to handle\000config=6\000\00000\000\000\000\000\000"
+/* offset=1035 */ "alignment-faults\000software\000Number of kernel handled memory alignment faults\000config=7\000\00000\000\000\000\000\000"
+/* offset=1127 */ "emulation-faults\000software\000Number of kernel handled unimplemented instruction faults handled through emulation\000config=8\000\00000\000\000\000\000\000"
+/* offset=1254 */ "dummy\000software\000A placeholder event that doesn't count anything\000config=9\000\00000\000\000\000\000\000"
+/* offset=1334 */ "bpf-output\000software\000An event used by BPF programs to write to the perf ring buffer\000config=0xa\000\00000\000\000\000\000\000"
+/* offset=1436 */ "cgroup-switches\000software\000Number of context switches to a task in a different cgroup\000config=0xb\000\00000\000\000\000\000\000"
+/* offset=1539 */ "tool\000"
+/* offset=1544 */ "duration_time\000tool\000Wall clock interval time in nanoseconds\000config=1\000\00000\000\000\000\000\000"
+/* offset=1620 */ "user_time\000tool\000User (non-kernel) time in nanoseconds\000config=2\000\00000\000\000\000\000\000"
+/* offset=1690 */ "system_time\000tool\000System/kernel time in nanoseconds\000config=3\000\00000\000\000\000\000\000"
+/* offset=1758 */ "has_pmem\000tool\0001 if persistent memory installed otherwise 0\000config=4\000\00000\000\000\000\000\000"
+/* offset=1834 */ "num_cores\000tool\000Number of cores. A core consists of 1 or more thread, with each thread being associated with a logical Linux CPU\000config=5\000\00000\000\000\000\000\000"
+/* offset=1979 */ "num_cpus\000tool\000Number of logical Linux CPUs. There may be multiple such CPUs on a core\000config=6\000\00000\000\000\000\000\000"
+/* offset=2082 */ "num_cpus_online\000tool\000Number of online logical Linux CPUs. There may be multiple such CPUs on a core\000config=7\000\00000\000\000\000\000\000"
+/* offset=2199 */ "num_dies\000tool\000Number of dies. Each die has 1 or more cores\000config=8\000\00000\000\000\000\000\000"
+/* offset=2275 */ "num_packages\000tool\000Number of packages. Each package has 1 or more die\000config=9\000\00000\000\000\000\000\000"
+/* offset=2361 */ "slots\000tool\000Number of functional units that in parallel can execute parts of an instruction\000config=0xa\000\00000\000\000\000\000\000"
+/* offset=2471 */ "smt_on\000tool\0001 if simultaneous multithreading (aka hyperthreading) is enable otherwise 0\000config=0xb\000\00000\000\000\000\000\000"
+/* offset=2578 */ "system_tsc_freq\000tool\000The amount a Time Stamp Counter (TSC) increases per second\000config=0xc\000\00000\000\000\000\000\000"
+/* offset=2677 */ "default_core\000"
+/* offset=2690 */ "bp_l1_btb_correct\000branch\000L1 BTB Correction\000event=0x8a\000\00000\000\000\000\000\000"
+/* offset=2752 */ "bp_l2_btb_correct\000branch\000L2 BTB Correction\000event=0x8b\000\00000\000\000\000\000\000"
+/* offset=2814 */ "l3_cache_rd\000cache\000L3 cache access, read\000event=0x40\000\00000\000\000\000\000Attributable Level 3 cache access, read\000"
+/* offset=2912 */ "segment_reg_loads.any\000other\000Number of segment register loads\000event=6,period=200000,umask=0x80\000\00000\000\000\000\000\000"
+/* offset=3014 */ "dispatch_blocked.any\000other\000Memory cluster signals to block micro-op dispatch for any reason\000event=9,period=200000,umask=0x20\000\00000\000\000\000\000\000"
+/* offset=3147 */ "eist_trans\000other\000Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions\000event=0x3a,period=200000\000\00000\000\000\000\000\000"
+/* offset=3265 */ "hisi_sccl,ddrc\000"
+/* offset=3280 */ "uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000"
+/* offset=3350 */ "uncore_cbox\000"
+/* offset=3362 */ "unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000"
+/* offset=3516 */ "event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000"
+/* offset=3570 */ "event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000"
+/* offset=3628 */ "hisi_sccl,l3c\000"
+/* offset=3642 */ "uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000"
+/* offset=3710 */ "uncore_imc_free_running\000"
+/* offset=3734 */ "uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000"
+/* offset=3814 */ "uncore_imc\000"
+/* offset=3825 */ "uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000"
+/* offset=3890 */ "uncore_sys_ddr_pmu\000"
+/* offset=3909 */ "sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000"
+/* offset=3985 */ "uncore_sys_ccn_pmu\000"
+/* offset=4004 */ "sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000"
+/* offset=4081 */ "uncore_sys_cmn_pmu\000"
+/* offset=4100 */ "sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000"
+/* offset=4243 */ "CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000"
+/* offset=4265 */ "IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000"
+/* offset=4328 */ "Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000"
+/* offset=4494 */ "dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
+/* offset=4558 */ "icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000"
+/* offset=4625 */ "cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000"
+/* offset=4696 */ "DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000"
+/* offset=4790 */ "DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000"
+/* offset=4924 */ "DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000"
+/* offset=4988 */ "DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000"
+/* offset=5056 */ "DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000"
+/* offset=5126 */ "M1\000\000ipc + M2\000\000\000\000\000\000\000\00000"
+/* offset=5148 */ "M2\000\000ipc + M1\000\000\000\000\000\000\000\00000"
+/* offset=5170 */ "M3\000\0001 / M3\000\000\000\000\000\000\000\00000"
+/* offset=5190 */ "L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000"
 ;
 
+static const struct compact_pmu_event pmu_events__common_software[] = {
+{ 1035 }, /* alignment-faults\000software\000Number of kernel handled memory alignment faults\000config=7\000\00000\000\000\000\000\000 */
+{ 1334 }, /* bpf-output\000software\000An event used by BPF programs to write to the perf ring buffer\000config=0xa\000\00000\000\000\000\000\000 */
+{ 1436 }, /* cgroup-switches\000software\000Number of context switches to a task in a different cgroup\000config=0xb\000\00000\000\000\000\000\000 */
+{ 357 }, /* context-switches\000software\000Number of context switches [This event is an alias of cs]\000config=3\000\00000\000\000\000\000\000 */
+{ 9 }, /* cpu-clock\000software\000Per-CPU high-resolution timer based event\000config=0\000\00000\000\000\000\000\000 */
+{ 559 }, /* cpu-migrations\000software\000Number of times a process has migrated to a new CPU [This event is an alias of migrations]\000config=4\000\00000\000\000\000\000\000 */
+{ 458 }, /* cs\000software\000Number of context switches [This event is an alias of context-switches]\000config=3\000\00000\000\000\000\000\000 */
+{ 1254 }, /* dummy\000software\000A placeholder event that doesn't count anything\000config=9\000\00000\000\000\000\000\000 */
+{ 1127 }, /* emulation-faults\000software\000Number of kernel handled unimplemented instruction faults handled through emulation\000config=8\000\00000\000\000\000\000\000 */
+{ 167 }, /* faults\000software\000Number of page faults [This event is an alias of page-faults]\000config=2\000\00000\000\000\000\000\000 */
+{ 932 }, /* major-faults\000software\000Number of major page faults. Major faults require I/O to handle\000config=6\000\00000\000\000\000\000\000 */
+{ 691 }, /* migrations\000software\000Number of times a process has migrated to a new CPU [This event is an alias of cpu-migrations]\000config=4\000\00000\000\000\000\000\000 */
+{ 823 }, /* minor-faults\000software\000Number of minor page faults. Minor faults don't require I/O to handle\000config=5\000\00000\000\000\000\000\000 */
+{ 262 }, /* page-faults\000software\000Number of page faults [This event is an alias of faults]\000config=2\000\00000\000\000\000\000\000 */
+{ 87 }, /* task-clock\000software\000Per-task high-resolution timer based event\000config=1\000\00000\000\000\000\000\000 */
+};
 static const struct compact_pmu_event pmu_events__common_tool[] = {
-{ 5 }, /* duration_time\000tool\000Wall clock interval time in nanoseconds\000config=1\000\00000\000\000\000\000\000 */
-{ 219 }, /* has_pmem\000tool\0001 if persistent memory installed otherwise 0\000config=4\000\00000\000\000\000\000\000 */
-{ 295 }, /* num_cores\000tool\000Number of cores. A core consists of 1 or more thread, with each thread being associated with a logical Linux CPU\000config=5\000\00000\000\000\000\000\000 */
-{ 440 }, /* num_cpus\000tool\000Number of logical Linux CPUs. There may be multiple such CPUs on a core\000config=6\000\00000\000\000\000\000\000 */
-{ 543 }, /* num_cpus_online\000tool\000Number of online logical Linux CPUs. There may be multiple such CPUs on a core\000config=7\000\00000\000\000\000\000\000 */
-{ 660 }, /* num_dies\000tool\000Number of dies. Each die has 1 or more cores\000config=8\000\00000\000\000\000\000\000 */
-{ 736 }, /* num_packages\000tool\000Number of packages. Each package has 1 or more die\000config=9\000\00000\000\000\000\000\000 */
-{ 822 }, /* slots\000tool\000Number of functional units that in parallel can execute parts of an instruction\000config=0xa\000\00000\000\000\000\000\000 */
-{ 932 }, /* smt_on\000tool\0001 if simultaneous multithreading (aka hyperthreading) is enable otherwise 0\000config=0xb\000\00000\000\000\000\000\000 */
-{ 151 }, /* system_time\000tool\000System/kernel time in nanoseconds\000config=3\000\00000\000\000\000\000\000 */
-{ 1039 }, /* system_tsc_freq\000tool\000The amount a Time Stamp Counter (TSC) increases per second\000config=0xc\000\00000\000\000\000\000\000 */
-{ 81 }, /* user_time\000tool\000User (non-kernel) time in nanoseconds\000config=2\000\00000\000\000\000\000\000 */
+{ 1544 }, /* duration_time\000tool\000Wall clock interval time in nanoseconds\000config=1\000\00000\000\000\000\000\000 */
+{ 1758 }, /* has_pmem\000tool\0001 if persistent memory installed otherwise 0\000config=4\000\00000\000\000\000\000\000 */
+{ 1834 }, /* num_cores\000tool\000Number of cores. A core consists of 1 or more thread, with each thread being associated with a logical Linux CPU\000config=5\000\00000\000\000\000\000\000 */
+{ 1979 }, /* num_cpus\000tool\000Number of logical Linux CPUs. There may be multiple such CPUs on a core\000config=6\000\00000\000\000\000\000\000 */
+{ 2082 }, /* num_cpus_online\000tool\000Number of online logical Linux CPUs. There may be multiple such CPUs on a core\000config=7\000\00000\000\000\000\000\000 */
+{ 2199 }, /* num_dies\000tool\000Number of dies. Each die has 1 or more cores\000config=8\000\00000\000\000\000\000\000 */
+{ 2275 }, /* num_packages\000tool\000Number of packages. Each package has 1 or more die\000config=9\000\00000\000\000\000\000\000 */
+{ 2361 }, /* slots\000tool\000Number of functional units that in parallel can execute parts of an instruction\000config=0xa\000\00000\000\000\000\000\000 */
+{ 2471 }, /* smt_on\000tool\0001 if simultaneous multithreading (aka hyperthreading) is enable otherwise 0\000config=0xb\000\00000\000\000\000\000\000 */
+{ 1690 }, /* system_time\000tool\000System/kernel time in nanoseconds\000config=3\000\00000\000\000\000\000\000 */
+{ 2578 }, /* system_tsc_freq\000tool\000The amount a Time Stamp Counter (TSC) increases per second\000config=0xc\000\00000\000\000\000\000\000 */
+{ 1620 }, /* user_time\000tool\000User (non-kernel) time in nanoseconds\000config=2\000\00000\000\000\000\000\000 */
 
 };
 
 const struct pmu_table_entry pmu_events__common[] = {
+{
+     .entries = pmu_events__common_software,
+     .num_entries = ARRAY_SIZE(pmu_events__common_software),
+     .pmu_name = { 0 /* software\000 */ },
+},
 {
      .entries = pmu_events__common_tool,
      .num_entries = ARRAY_SIZE(pmu_events__common_tool),
-     .pmu_name = { 0 /* tool\000 */ },
+     .pmu_name = { 1539 /* tool\000 */ },
 },
 };
 
 static const struct compact_pmu_event pmu_events__test_soc_cpu_default_core[] = {
-{ 1151 }, /* bp_l1_btb_correct\000branch\000L1 BTB Correction\000event=0x8a\000\00000\000\000\000\000\000 */
-{ 1213 }, /* bp_l2_btb_correct\000branch\000L2 BTB Correction\000event=0x8b\000\00000\000\000\000\000\000 */
-{ 1475 }, /* dispatch_blocked.any\000other\000Memory cluster signals to block micro-op dispatch for any reason\000event=9,period=200000,umask=0x20\000\00000\000\000\000\000\000 */
-{ 1608 }, /* eist_trans\000other\000Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions\000event=0x3a,period=200000\000\00000\000\000\000\000\000 */
-{ 1275 }, /* l3_cache_rd\000cache\000L3 cache access, read\000event=0x40\000\00000\000\000\000\000Attributable Level 3 cache access, read\000 */
-{ 1373 }, /* segment_reg_loads.any\000other\000Number of segment register loads\000event=6,period=200000,umask=0x80\000\00000\000\000\000\000\000 */
+{ 2690 }, /* bp_l1_btb_correct\000branch\000L1 BTB Correction\000event=0x8a\000\00000\000\000\000\000\000 */
+{ 2752 }, /* bp_l2_btb_correct\000branch\000L2 BTB Correction\000event=0x8b\000\00000\000\000\000\000\000 */
+{ 3014 }, /* dispatch_blocked.any\000other\000Memory cluster signals to block micro-op dispatch for any reason\000event=9,period=200000,umask=0x20\000\00000\000\000\000\000\000 */
+{ 3147 }, /* eist_trans\000other\000Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions\000event=0x3a,period=200000\000\00000\000\000\000\000\000 */
+{ 2814 }, /* l3_cache_rd\000cache\000L3 cache access, read\000event=0x40\000\00000\000\000\000\000Attributable Level 3 cache access, read\000 */
+{ 2912 }, /* segment_reg_loads.any\000other\000Number of segment register loads\000event=6,period=200000,umask=0x80\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_hisi_sccl_ddrc[] = {
-{ 1741 }, /* uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000 */
+{ 3280 }, /* uncore_hisi_ddrc.flux_wcmd\000uncore\000DDRC write commands\000event=2\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_hisi_sccl_l3c[] = {
-{ 2103 }, /* uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000 */
+{ 3642 }, /* uncore_hisi_l3c.rd_hit_cpipe\000uncore\000Total read hits\000event=7\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_cbox[] = {
-{ 1977 }, /* event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000 */
-{ 2031 }, /* event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000 */
-{ 1823 }, /* unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000 */
+{ 3516 }, /* event-hyphen\000uncore\000UNC_CBO_HYPHEN\000event=0xe0\000\00000\000\000\000\000\000 */
+{ 3570 }, /* event-two-hyph\000uncore\000UNC_CBO_TWO_HYPH\000event=0xc0\000\00000\000\000\000\000\000 */
+{ 3362 }, /* unc_cbo_xsnp_response.miss_eviction\000uncore\000A cross-core snoop resulted from L3 Eviction which misses in some processor core\000event=0x22,umask=0x81\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_imc[] = {
-{ 2286 }, /* uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000 */
+{ 3825 }, /* uncore_imc.cache_hits\000uncore\000Total cache hits\000event=0x34\000\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_cpu_uncore_imc_free_running[] = {
-{ 2195 }, /* uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000 */
+{ 3734 }, /* uncore_imc_free_running.cache_miss\000uncore\000Total cache misses\000event=0x12\000\00000\000\000\000\000\000 */
 
 };
 
@@ -129,51 +167,51 @@ const struct pmu_table_entry pmu_events__test_soc_cpu[] = {
 {
      .entries = pmu_events__test_soc_cpu_default_core,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_default_core),
-     .pmu_name = { 1138 /* default_core\000 */ },
+     .pmu_name = { 2677 /* default_core\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_hisi_sccl_ddrc,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_hisi_sccl_ddrc),
-     .pmu_name = { 1726 /* hisi_sccl,ddrc\000 */ },
+     .pmu_name = { 3265 /* hisi_sccl,ddrc\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_hisi_sccl_l3c,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_hisi_sccl_l3c),
-     .pmu_name = { 2089 /* hisi_sccl,l3c\000 */ },
+     .pmu_name = { 3628 /* hisi_sccl,l3c\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_cbox,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_cbox),
-     .pmu_name = { 1811 /* uncore_cbox\000 */ },
+     .pmu_name = { 3350 /* uncore_cbox\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_imc,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_imc),
-     .pmu_name = { 2275 /* uncore_imc\000 */ },
+     .pmu_name = { 3814 /* uncore_imc\000 */ },
 },
 {
      .entries = pmu_events__test_soc_cpu_uncore_imc_free_running,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_cpu_uncore_imc_free_running),
-     .pmu_name = { 2171 /* uncore_imc_free_running\000 */ },
+     .pmu_name = { 3710 /* uncore_imc_free_running\000 */ },
 },
 };
 
 static const struct compact_pmu_event pmu_metrics__test_soc_cpu_default_core[] = {
-{ 2704 }, /* CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000 */
-{ 3385 }, /* DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000 */
-{ 3157 }, /* DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000 */
-{ 3251 }, /* DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000 */
-{ 3449 }, /* DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
-{ 3517 }, /* DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
-{ 2789 }, /* Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000 */
-{ 2726 }, /* IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000 */
-{ 3651 }, /* L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000 */
-{ 3587 }, /* M1\000\000ipc + M2\000\000\000\000\000\000\000\00000 */
-{ 3609 }, /* M2\000\000ipc + M1\000\000\000\000\000\000\000\00000 */
-{ 3631 }, /* M3\000\0001 / M3\000\000\000\000\000\000\000\00000 */
-{ 3086 }, /* cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000 */
-{ 2955 }, /* dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
-{ 3019 }, /* icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
+{ 4243 }, /* CPI\000\0001 / IPC\000\000\000\000\000\000\000\00000 */
+{ 4924 }, /* DCache_L2_All\000\000DCache_L2_All_Hits + DCache_L2_All_Miss\000\000\000\000\000\000\000\00000 */
+{ 4696 }, /* DCache_L2_All_Hits\000\000l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit\000\000\000\000\000\000\000\00000 */
+{ 4790 }, /* DCache_L2_All_Miss\000\000max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss\000\000\000\000\000\000\000\00000 */
+{ 4988 }, /* DCache_L2_Hits\000\000d_ratio(DCache_L2_All_Hits, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
+{ 5056 }, /* DCache_L2_Misses\000\000d_ratio(DCache_L2_All_Miss, DCache_L2_All)\000\000\000\000\000\000\000\00000 */
+{ 4328 }, /* Frontend_Bound_SMT\000\000idq_uops_not_delivered.core / (4 * (cpu_clk_unhalted.thread / 2 * (1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk)))\000\000\000\000\000\000\000\00000 */
+{ 4265 }, /* IPC\000group1\000inst_retired.any / cpu_clk_unhalted.thread\000\000\000\000\000\000\000\00000 */
+{ 5190 }, /* L1D_Cache_Fill_BW\000\00064 * l1d.replacement / 1e9 / duration_time\000\000\000\000\000\000\000\00000 */
+{ 5126 }, /* M1\000\000ipc + M2\000\000\000\000\000\000\000\00000 */
+{ 5148 }, /* M2\000\000ipc + M1\000\000\000\000\000\000\000\00000 */
+{ 5170 }, /* M3\000\0001 / M3\000\000\000\000\000\000\000\00000 */
+{ 4625 }, /* cache_miss_cycles\000group1\000dcache_miss_cpi + icache_miss_cycles\000\000\000\000\000\000\000\00000 */
+{ 4494 }, /* dcache_miss_cpi\000\000l1d\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
+{ 4558 }, /* icache_miss_cycles\000\000l1i\\-loads\\-misses / inst_retired.any\000\000\000\000\000\000\000\00000 */
 
 };
 
@@ -181,18 +219,18 @@ const struct pmu_table_entry pmu_metrics__test_soc_cpu[] = {
 {
      .entries = pmu_metrics__test_soc_cpu_default_core,
      .num_entries = ARRAY_SIZE(pmu_metrics__test_soc_cpu_default_core),
-     .pmu_name = { 1138 /* default_core\000 */ },
+     .pmu_name = { 2677 /* default_core\000 */ },
 },
 };
 
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_ccn_pmu[] = {
-{ 2465 }, /* sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000 */
+{ 4004 }, /* sys_ccn_pmu.read_cycles\000uncore\000ccn read-cycles event\000config=0x2c\0000x01\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_cmn_pmu[] = {
-{ 2561 }, /* sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000 */
+{ 4100 }, /* sys_cmn_pmu.hnf_cache_miss\000uncore\000Counts total cache misses in first lookup result (high priority)\000eventid=1,type=5\000(434|436|43c|43a).*\00000\000\000\000\000\000 */
 };
 static const struct compact_pmu_event pmu_events__test_soc_sys_uncore_sys_ddr_pmu[] = {
-{ 2370 }, /* sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000 */
+{ 3909 }, /* sys_ddr_pmu.write_cycles\000uncore\000ddr write-cycles event\000event=0x2b\000v8\00000\000\000\000\000\000 */
 
 };
 
@@ -200,17 +238,17 @@ const struct pmu_table_entry pmu_events__test_soc_sys[] = {
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_ccn_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_ccn_pmu),
-     .pmu_name = { 2446 /* uncore_sys_ccn_pmu\000 */ },
+     .pmu_name = { 3985 /* uncore_sys_ccn_pmu\000 */ },
 },
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_cmn_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_cmn_pmu),
-     .pmu_name = { 2542 /* uncore_sys_cmn_pmu\000 */ },
+     .pmu_name = { 4081 /* uncore_sys_cmn_pmu\000 */ },
 },
 {
      .entries = pmu_events__test_soc_sys_uncore_sys_ddr_pmu,
      .num_entries = ARRAY_SIZE(pmu_events__test_soc_sys_uncore_sys_ddr_pmu),
-     .pmu_name = { 2351 /* uncore_sys_ddr_pmu\000 */ },
+     .pmu_name = { 3890 /* uncore_sys_ddr_pmu\000 */ },
 },
 };
 
@@ -632,8 +670,20 @@ static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
 {
         struct perf_cpu cpu = {-1};
 
-        if (pmu)
+        if (pmu) {
+                for (size_t i = 0; i < ARRAY_SIZE(pmu_events__common); i++) {
+                        const char *pmu_name = &big_c_string[pmu_events__common[i].pmu_name.offset];
+
+                        if (!strcmp(pmu_name, pmu->name)) {
+                                const struct pmu_events_map *map = &pmu_events_map[0];
+
+                                while (strcmp("common", map->arch))
+                                        map++;
+                                return map;
+                        }
+                }
                 cpu = perf_cpu_map__min(pmu->cpus);
+        }
         return map_for_cpu(cpu);
 }
 
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 0abd3cfb15ea..168c044dd7cc 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -296,6 +296,7 @@ class JsonEvent:
           'cpu_atom': 'cpu_atom',
           'ali_drw': 'ali_drw',
           'arm_cmn': 'arm_cmn',
+          'software': 'software',
           'tool': 'tool',
       }
       return table[unit] if unit in table else f'uncore_{unit.lower()}'
@@ -1159,8 +1160,20 @@ static const struct pmu_events_map *map_for_pmu(struct perf_pmu *pmu)
 {
         struct perf_cpu cpu = {-1};
 
-        if (pmu)
+        if (pmu) {
+                for (size_t i = 0; i < ARRAY_SIZE(pmu_events__common); i++) {
+                        const char *pmu_name = &big_c_string[pmu_events__common[i].pmu_name.offset];
+
+                        if (!strcmp(pmu_name, pmu->name)) {
+                                const struct pmu_events_map *map = &pmu_events_map[0];
+
+                                while (strcmp("common", map->arch))
+                                        map++;
+                                return map;
+                        }
+                }
                 cpu = perf_cpu_map__min(pmu->cpus);
+        }
         return map_for_cpu(cpu);
 }
 

From 6e9fa4131abb0129b1153ba6d194bd294b9f9986 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:49 -0700
Subject: [PATCH 172/179] perf parse-events: Remove non-json software events

Remove the hard coded encodings from parse-events. This has the
consequence that software events are matched using the sysfs/json
priority, will be case insensitive and will be wildcarded across PMUs.
As there were software and hardware types in the parsing code, the
removal means software vs hardware logic can be removed and hardware
assumed.

Now the perf json provides detailed descriptions of software events,
remove the previous listing support that didn't contain event
descriptions. When globbing is required for the "sw" option in perf
list, use string PMU globbing as was done previously for the tool PMU.

The output of `perf list sw` command changed like this.

Before:
  List of pre-defined events (to be used in -e or -M):

    alignment-faults                                   [Software event]
    bpf-output                                         [Software event]
    cgroup-switches                                    [Software event]
    context-switches OR cs                             [Software event]
    cpu-clock                                          [Software event]
    cpu-migrations OR migrations                       [Software event]
    dummy                                              [Software event]
    emulation-faults                                   [Software event]
    major-faults                                       [Software event]
    minor-faults                                       [Software event]
    page-faults OR faults                              [Software event]
    task-clock                                         [Software event]

After:
  List of pre-defined events (to be used in -e or -M):

  software:
    alignment-faults
         [Number of kernel handled memory alignment faults. Unit: software]
    bpf-output
         [An event used by BPF programs to write to the perf ring buffer. Unit: software]
    cgroup-switches
         [Number of context switches to a task in a different cgroup. Unit: software]
    context-switches
         [Number of context switches [This event is an alias of cs]. Unit: software]
    cpu-clock
         [Per-CPU high-resolution timer based event. Unit: software]
    cpu-migrations
         [Number of times a process has migrated to a new CPU [This event is an alias of migrations]. Unit: software]
    cs
         [Number of context switches [This event is an alias of context-switches]. Unit: software]
    dummy
         [A placeholder event that doesn't count anything. Unit: software]
    ...

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-list.c      | 19 ++++++-------
 tools/perf/util/parse-events.c | 51 ----------------------------------
 tools/perf/util/parse-events.h |  1 -
 tools/perf/util/parse-events.l | 38 +++++++++----------------
 tools/perf/util/parse-events.y | 29 ++++++++-----------
 tools/perf/util/print-events.c |  2 --
 6 files changed, 33 insertions(+), 107 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index e9b595d75df2..674bb0afbf93 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -623,16 +623,17 @@ int cmd_list(int argc, const char **argv)
 		else if (strcmp(argv[i], "sw") == 0 ||
 			 strcmp(argv[i], "software") == 0) {
 			char *old_pmu_glob = default_ps.pmu_glob;
+			static const char * const sw_globs[] = { "software", "tool" };
 
-			print_symbol_events(&print_cb, ps, PERF_TYPE_SOFTWARE,
-					event_symbols_sw, PERF_COUNT_SW_MAX);
-			default_ps.pmu_glob = strdup("tool");
-			if (!default_ps.pmu_glob) {
-				ret = -1;
-				goto out;
+			for (size_t j = 0; j < ARRAY_SIZE(sw_globs); j++) {
+				default_ps.pmu_glob = strdup(sw_globs[j]);
+				if (!default_ps.pmu_glob) {
+					ret = -1;
+					goto out;
+				}
+				perf_pmus__print_pmu_events(&print_cb, ps);
+				zfree(&default_ps.pmu_glob);
 			}
-			perf_pmus__print_pmu_events(&print_cb, ps);
-			zfree(&default_ps.pmu_glob);
 			default_ps.pmu_glob = old_pmu_glob;
 		} else if (strcmp(argv[i], "cache") == 0 ||
 			 strcmp(argv[i], "hwcache") == 0)
@@ -679,8 +680,6 @@ int cmd_list(int argc, const char **argv)
 			default_ps.event_glob = s;
 			print_symbol_events(&print_cb, ps, PERF_TYPE_HARDWARE,
 					event_symbols_hw, PERF_COUNT_HW_MAX);
-			print_symbol_events(&print_cb, ps, PERF_TYPE_SOFTWARE,
-					event_symbols_sw, PERF_COUNT_SW_MAX);
 			print_hwcache_events(&print_cb, ps);
 			perf_pmus__print_pmu_events(&print_cb, ps);
 			print_tracepoint_events(&print_cb, ps);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 01fa8c80998b..74e0822ad82d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -84,57 +84,6 @@ const struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
 	},
 };
 
-const struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
-	[PERF_COUNT_SW_CPU_CLOCK] = {
-		.symbol = "cpu-clock",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_TASK_CLOCK] = {
-		.symbol = "task-clock",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_PAGE_FAULTS] = {
-		.symbol = "page-faults",
-		.alias  = "faults",
-	},
-	[PERF_COUNT_SW_CONTEXT_SWITCHES] = {
-		.symbol = "context-switches",
-		.alias  = "cs",
-	},
-	[PERF_COUNT_SW_CPU_MIGRATIONS] = {
-		.symbol = "cpu-migrations",
-		.alias  = "migrations",
-	},
-	[PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
-		.symbol = "minor-faults",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
-		.symbol = "major-faults",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
-		.symbol = "alignment-faults",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_EMULATION_FAULTS] = {
-		.symbol = "emulation-faults",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_DUMMY] = {
-		.symbol = "dummy",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_BPF_OUTPUT] = {
-		.symbol = "bpf-output",
-		.alias  = "",
-	},
-	[PERF_COUNT_SW_CGROUP_SWITCHES] = {
-		.symbol = "cgroup-switches",
-		.alias  = "",
-	},
-};
-
 static const char *const event_types[] = {
 	[PERF_TYPE_HARDWARE]	= "hardware",
 	[PERF_TYPE_SOFTWARE]	= "software",
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index b47bf2810112..62dc7202e3ba 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -264,7 +264,6 @@ struct event_symbol {
 	const char	*alias;
 };
 extern const struct event_symbol event_symbols_hw[];
-extern const struct event_symbol event_symbols_sw[];
 
 char *parse_events_formats_error_string(char *additional_terms);
 
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 4af7b9c1f44d..2034590eb789 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -117,12 +117,12 @@ do {								\
 	yyless(0);						\
 } while (0)
 
-static int sym(yyscan_t scanner, int type, int config)
+static int sym(yyscan_t scanner, int config)
 {
 	YYSTYPE *yylval = parse_events_get_lval(scanner);
 
-	yylval->num = (type << 16) + config;
-	return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
+	yylval->num = config;
+	return PE_VALUE_SYM_HW;
 }
 
 static int term(yyscan_t scanner, enum parse_events__term_type type)
@@ -391,28 +391,16 @@ r0x{num_raw_hex}	{ return str(yyscanner, PE_RAW); }
 <<EOF>>			{ BEGIN(INITIAL); }
 }
 
-cpu-cycles|cycles				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
-stalled-cycles-frontend|idle-cycles-frontend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
-stalled-cycles-backend|idle-cycles-backend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
-instructions					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
-cache-references				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
-cache-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
-branch-instructions|branches			{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
-branch-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
-bus-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
-ref-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
-cpu-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
-task-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
-page-faults|faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
-minor-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
-major-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
-context-switches|cs				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
-cpu-migrations|migrations			{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
-alignment-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
-emulation-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
-dummy						{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
-bpf-output					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
-cgroup-switches					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CGROUP_SWITCHES); }
+cpu-cycles|cycles				{ return sym(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
+stalled-cycles-frontend|idle-cycles-frontend	{ return sym(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
+stalled-cycles-backend|idle-cycles-backend	{ return sym(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
+instructions					{ return sym(yyscanner, PERF_COUNT_HW_INSTRUCTIONS); }
+cache-references				{ return sym(yyscanner, PERF_COUNT_HW_CACHE_REFERENCES); }
+cache-misses					{ return sym(yyscanner, PERF_COUNT_HW_CACHE_MISSES); }
+branch-instructions|branches			{ return sym(yyscanner, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
+branch-misses					{ return sym(yyscanner, PERF_COUNT_HW_BRANCH_MISSES); }
+bus-cycles					{ return sym(yyscanner, PERF_COUNT_HW_BUS_CYCLES); }
+ref-cycles					{ return sym(yyscanner, PERF_COUNT_HW_REF_CPU_CYCLES); }
 
 {lc_type}			{ return str(yyscanner, PE_LEGACY_CACHE); }
 {lc_type}-{lc_op_result}	{ return str(yyscanner, PE_LEGACY_CACHE); }
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index f888cbb076d6..a2361c0040d7 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -55,7 +55,7 @@ static void free_list_evsel(struct list_head* list_evsel)
 %}
 
 %token PE_START_EVENTS PE_START_TERMS
-%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM
+%token PE_VALUE PE_VALUE_SYM_HW PE_TERM
 %token PE_EVENT_NAME
 %token PE_RAW PE_NAME
 %token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH
@@ -66,10 +66,8 @@ static void free_list_evsel(struct list_head* list_evsel)
 %token PE_TERM_HW
 %type <num> PE_VALUE
 %type <num> PE_VALUE_SYM_HW
-%type <num> PE_VALUE_SYM_SW
 %type <mod> PE_MODIFIER_EVENT
 %type <term_type> PE_TERM
-%type <num> value_sym
 %type <str> PE_RAW
 %type <str> PE_NAME
 %type <str> PE_LEGACY_CACHE
@@ -306,24 +304,19 @@ PE_NAME sep_dc
 	$$ = list;
 }
 
-value_sym:
-PE_VALUE_SYM_HW
-|
-PE_VALUE_SYM_SW
-
 event_legacy_symbol:
-value_sym '/' event_config '/'
+PE_VALUE_SYM_HW '/' event_config '/'
 {
 	struct list_head *list;
-	int type = $1 >> 16;
-	int config = $1 & 255;
 	int err;
-	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
 
 	list = alloc_list();
 	if (!list)
 		YYNOMEM;
-	err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
+	err = parse_events_add_numeric(_parse_state, list,
+				       PERF_TYPE_HARDWARE, $1,
+				       $3,
+				       /*wildcard=*/true);
 	parse_events_terms__delete($3);
 	if (err) {
 		free_list_evsel(list);
@@ -332,18 +325,18 @@ value_sym '/' event_config '/'
 	$$ = list;
 }
 |
-value_sym sep_slash_slash_dc
+PE_VALUE_SYM_HW sep_slash_slash_dc
 {
 	struct list_head *list;
-	int type = $1 >> 16;
-	int config = $1 & 255;
-	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
 	int err;
 
 	list = alloc_list();
 	if (!list)
 		YYNOMEM;
-	err = parse_events_add_numeric(_parse_state, list, type, config, /*head_config=*/NULL, wildcard);
+	err = parse_events_add_numeric(_parse_state, list,
+				       PERF_TYPE_HARDWARE, $1,
+				       /*head_config=*/NULL,
+				       /*wildcard=*/true);
 	if (err)
 		PE_ABORT(err);
 	$$ = list;
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index e233bacaa641..c1a8708b55ab 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -521,8 +521,6 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
 {
 	print_symbol_events(print_cb, print_state, PERF_TYPE_HARDWARE,
 			event_symbols_hw, PERF_COUNT_HW_MAX);
-	print_symbol_events(print_cb, print_state, PERF_TYPE_SOFTWARE,
-			event_symbols_sw, PERF_COUNT_SW_MAX);
 
 	print_hwcache_events(print_cb, print_state);
 

From d002aab87de84b26c6f0a2b9549a589105d00d35 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:50 -0700
Subject: [PATCH 173/179] perf tp_pmu: Factor existing tracepoint logic to new
 file

Start the creation of a tracepoint PMU abstraction. Tracepoint events
don't follow the regular sysfs perf conventions. Eventually the new
PMU abstraction will bridge the gap so tracepoint events look more
like regular perf ones.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/Build          |   1 +
 tools/perf/util/evsel.c        |  21 +----
 tools/perf/util/parse-events.c | 151 ++++++++++++++-------------------
 tools/perf/util/tp_pmu.c       |  95 +++++++++++++++++++++
 tools/perf/util/tp_pmu.h       |  12 +++
 5 files changed, 172 insertions(+), 108 deletions(-)
 create mode 100644 tools/perf/util/tp_pmu.c
 create mode 100644 tools/perf/util/tp_pmu.h

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 12bc01c843b2..4959e7a990e4 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -88,6 +88,7 @@ perf-util-y += pmu-bison.o
 perf-util-y += drm_pmu.o
 perf-util-y += hwmon_pmu.o
 perf-util-y += tool_pmu.o
+perf-util-y += tp_pmu.o
 perf-util-y += svghelper.o
 perf-util-y += trace-event-info.o
 perf-util-y += trace-event-scripting.o
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3d27e9bdd66b..d264c143b592 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -60,6 +60,7 @@
 #include "drm_pmu.h"
 #include "hwmon_pmu.h"
 #include "tool_pmu.h"
+#include "tp_pmu.h"
 #include "rlimit.h"
 #include "../perf-sys.h"
 #include "util/parse-branch-options.h"
@@ -572,24 +573,6 @@ struct evsel *evsel__clone(struct evsel *dest, struct evsel *orig)
 	return NULL;
 }
 
-static int trace_event__id(const char *sys, const char *name)
-{
-	char *tp_dir = get_events_file(sys);
-	char path[PATH_MAX];
-	int id, err;
-
-	if (!tp_dir)
-		return -1;
-
-	scnprintf(path, PATH_MAX, "%s/%s/id", tp_dir, name);
-	put_events_file(tp_dir);
-	err = filename__read_int(path, &id);
-	if (err)
-		return err;
-
-	return id;
-}
-
 /*
  * Returns pointer with encoded error via <linux/err.h> interface.
  */
@@ -623,7 +606,7 @@ struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx, bool
 	event_attr_init(&attr);
 
 	if (format) {
-		id = trace_event__id(sys, name);
+		id = tp_pmu__id(sys, name);
 		if (id < 0) {
 			err = id;
 			goto out_free;
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 74e0822ad82d..8282ddf68b98 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -17,13 +17,12 @@
 #include "string2.h"
 #include "strbuf.h"
 #include "debug.h"
-#include <api/fs/tracing_path.h>
-#include <api/io_dir.h>
 #include <perf/cpumap.h>
 #include <util/parse-events-bison.h>
 #include <util/parse-events-flex.h>
 #include "pmu.h"
 #include "pmus.h"
+#include "tp_pmu.h"
 #include "asm/bug.h"
 #include "ui/ui.h"
 #include "util/parse-branch-options.h"
@@ -33,6 +32,7 @@
 #include "util/stat.h"
 #include "util/util.h"
 #include "tracepoint.h"
+#include <api/fs/tracing_path.h>
 
 #define MAX_NAME_LEN 100
 
@@ -599,105 +599,82 @@ static int add_tracepoint(struct parse_events_state *parse_state,
 	return 0;
 }
 
-static int add_tracepoint_multi_event(struct parse_events_state *parse_state,
-				      struct list_head *list,
-				      const char *sys_name, const char *evt_name,
-				      struct parse_events_error *err,
-				      struct parse_events_terms *head_config, YYLTYPE *loc)
+struct add_tracepoint_multi_args {
+	struct parse_events_state *parse_state;
+	struct list_head *list;
+	const char *sys_glob;
+	const char *evt_glob;
+	struct parse_events_error *err;
+	struct parse_events_terms *head_config;
+	YYLTYPE *loc;
+	int found;
+};
+
+static int add_tracepoint_multi_event_cb(void *state, const char *sys_name, const char *evt_name)
 {
-	char *evt_path;
-	struct io_dirent64 *evt_ent;
-	struct io_dir evt_dir;
-	int ret = 0, found = 0;
+	struct add_tracepoint_multi_args *args = state;
+	int ret;
 
-	evt_path = get_events_file(sys_name);
-	if (!evt_path) {
-		tracepoint_error(err, errno, sys_name, evt_name, loc->first_column);
-		return -1;
-	}
-	io_dir__init(&evt_dir, open(evt_path, O_CLOEXEC | O_DIRECTORY | O_RDONLY));
-	if (evt_dir.dirfd < 0) {
-		put_events_file(evt_path);
-		tracepoint_error(err, errno, sys_name, evt_name, loc->first_column);
-		return -1;
-	}
+	if (!strglobmatch(evt_name, args->evt_glob))
+		return 0;
 
-	while (!ret && (evt_ent = io_dir__readdir(&evt_dir))) {
-		if (!strcmp(evt_ent->d_name, ".")
-		    || !strcmp(evt_ent->d_name, "..")
-		    || !strcmp(evt_ent->d_name, "enable")
-		    || !strcmp(evt_ent->d_name, "filter"))
-			continue;
+	args->found++;
+	ret = add_tracepoint(args->parse_state, args->list, sys_name, evt_name,
+			     args->err, args->head_config, args->loc);
 
-		if (!strglobmatch(evt_ent->d_name, evt_name))
-			continue;
-
-		found++;
-
-		ret = add_tracepoint(parse_state, list, sys_name, evt_ent->d_name,
-				     err, head_config, loc);
-	}
-
-	if (!found) {
-		tracepoint_error(err, ENOENT, sys_name, evt_name, loc->first_column);
-		ret = -1;
-	}
-
-	put_events_file(evt_path);
-	close(evt_dir.dirfd);
 	return ret;
 }
 
-static int add_tracepoint_event(struct parse_events_state *parse_state,
-				struct list_head *list,
-				const char *sys_name, const char *evt_name,
-				struct parse_events_error *err,
-				struct parse_events_terms *head_config, YYLTYPE *loc)
+static int add_tracepoint_multi_event(struct add_tracepoint_multi_args *args, const char *sys_name)
 {
-	return strpbrk(evt_name, "*?") ?
-		add_tracepoint_multi_event(parse_state, list, sys_name, evt_name,
-					   err, head_config, loc) :
-		add_tracepoint(parse_state, list, sys_name, evt_name,
-			       err, head_config, loc);
+	if (strpbrk(args->evt_glob, "*?") == NULL) {
+		/* Not a glob. */
+		args->found++;
+		return add_tracepoint(args->parse_state, args->list, sys_name, args->evt_glob,
+				      args->err, args->head_config, args->loc);
+	}
+
+	return tp_pmu__for_each_tp_event(sys_name, args, add_tracepoint_multi_event_cb);
+}
+
+static int add_tracepoint_multi_sys_cb(void *state, const char *sys_name)
+{
+	struct add_tracepoint_multi_args *args = state;
+
+	if (!strglobmatch(sys_name, args->sys_glob))
+		return 0;
+
+	return add_tracepoint_multi_event(args, sys_name);
 }
 
 static int add_tracepoint_multi_sys(struct parse_events_state *parse_state,
 				    struct list_head *list,
-				    const char *sys_name, const char *evt_name,
+				    const char *sys_glob, const char *evt_glob,
 				    struct parse_events_error *err,
 				    struct parse_events_terms *head_config, YYLTYPE *loc)
 {
-	struct io_dirent64 *events_ent;
-	struct io_dir events_dir;
-	int ret = 0;
-	char *events_dir_path = get_tracing_file("events");
+	struct add_tracepoint_multi_args args = {
+		.parse_state = parse_state,
+		.list = list,
+		.sys_glob = sys_glob,
+		.evt_glob = evt_glob,
+		.err = err,
+		.head_config = head_config,
+		.loc = loc,
+		.found = 0,
+	};
+	int ret;
 
-	if (!events_dir_path) {
-		tracepoint_error(err, errno, sys_name, evt_name, loc->first_column);
-		return -1;
+	if (strpbrk(sys_glob, "*?") == NULL) {
+		/* Not a glob. */
+		ret = add_tracepoint_multi_event(&args, sys_glob);
+	} else {
+		ret = tp_pmu__for_each_tp_sys(&args, add_tracepoint_multi_sys_cb);
 	}
-	io_dir__init(&events_dir, open(events_dir_path, O_CLOEXEC | O_DIRECTORY | O_RDONLY));
-	put_events_file(events_dir_path);
-	if (events_dir.dirfd < 0) {
-		tracepoint_error(err, errno, sys_name, evt_name, loc->first_column);
-		return -1;
+	if (args.found == 0) {
+		tracepoint_error(err, ENOENT, sys_glob, evt_glob, loc->first_column);
+		return -ENOENT;
 	}
-
-	while (!ret && (events_ent = io_dir__readdir(&events_dir))) {
-		if (!strcmp(events_ent->d_name, ".")
-		    || !strcmp(events_ent->d_name, "..")
-		    || !strcmp(events_ent->d_name, "enable")
-		    || !strcmp(events_ent->d_name, "header_event")
-		    || !strcmp(events_ent->d_name, "header_page"))
-			continue;
-
-		if (!strglobmatch(events_ent->d_name, sys_name))
-			continue;
-
-		ret = add_tracepoint_event(parse_state, list, events_ent->d_name,
-					   evt_name, err, head_config, loc);
-	}
-	close(events_dir.dirfd);
 	return ret;
 }
 
@@ -1406,12 +1383,8 @@ int parse_events_add_tracepoint(struct parse_events_state *parse_state,
 			return -EINVAL;
 	}
 
-	if (strpbrk(sys, "*?"))
-		return add_tracepoint_multi_sys(parse_state, list, sys, event,
-						err, head_config, loc);
-	else
-		return add_tracepoint_event(parse_state, list, sys, event,
-					    err, head_config, loc);
+	return add_tracepoint_multi_sys(parse_state, list, sys, event,
+					err, head_config, loc);
 }
 
 static int __parse_events_add_numeric(struct parse_events_state *parse_state,
diff --git a/tools/perf/util/tp_pmu.c b/tools/perf/util/tp_pmu.c
new file mode 100644
index 000000000000..42bd967a4530
--- /dev/null
+++ b/tools/perf/util/tp_pmu.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+#include "tp_pmu.h"
+#include <api/fs/fs.h>
+#include <api/fs/tracing_path.h>
+#include <api/io_dir.h>
+#include <linux/kernel.h>
+#include <errno.h>
+#include <string.h>
+
+int tp_pmu__id(const char *sys, const char *name)
+{
+	char *tp_dir = get_events_file(sys);
+	char path[PATH_MAX];
+	int id, err;
+
+	if (!tp_dir)
+		return -1;
+
+	scnprintf(path, PATH_MAX, "%s/%s/id", tp_dir, name);
+	put_events_file(tp_dir);
+	err = filename__read_int(path, &id);
+	if (err)
+		return err;
+
+	return id;
+}
+
+
+int tp_pmu__for_each_tp_event(const char *sys, void *state, tp_event_callback cb)
+{
+	char *evt_path;
+	struct io_dirent64 *evt_ent;
+	struct io_dir evt_dir;
+	int ret = 0;
+
+	evt_path = get_events_file(sys);
+	if (!evt_path)
+		return -errno;
+
+	io_dir__init(&evt_dir, open(evt_path, O_CLOEXEC | O_DIRECTORY | O_RDONLY));
+	if (evt_dir.dirfd < 0) {
+		ret = -errno;
+		put_events_file(evt_path);
+		return ret;
+	}
+	put_events_file(evt_path);
+
+	while (!ret && (evt_ent = io_dir__readdir(&evt_dir))) {
+		if (!strcmp(evt_ent->d_name, ".")
+		    || !strcmp(evt_ent->d_name, "..")
+		    || !strcmp(evt_ent->d_name, "enable")
+		    || !strcmp(evt_ent->d_name, "filter"))
+			continue;
+
+		ret = cb(state, sys, evt_ent->d_name);
+		if (ret)
+			break;
+	}
+	close(evt_dir.dirfd);
+	return ret;
+}
+
+int tp_pmu__for_each_tp_sys(void *state, tp_sys_callback cb)
+{
+	struct io_dirent64 *events_ent;
+	struct io_dir events_dir;
+	int ret = 0;
+	char *events_dir_path = get_tracing_file("events");
+
+	if (!events_dir_path)
+		return -errno;
+
+	io_dir__init(&events_dir, open(events_dir_path, O_CLOEXEC | O_DIRECTORY | O_RDONLY));
+	if (events_dir.dirfd < 0) {
+		ret = -errno;
+		put_events_file(events_dir_path);
+		return ret;
+	}
+	put_events_file(events_dir_path);
+
+	while (!ret && (events_ent = io_dir__readdir(&events_dir))) {
+		if (!strcmp(events_ent->d_name, ".") ||
+		    !strcmp(events_ent->d_name, "..") ||
+		    !strcmp(events_ent->d_name, "enable") ||
+		    !strcmp(events_ent->d_name, "header_event") ||
+		    !strcmp(events_ent->d_name, "header_page"))
+			continue;
+
+		ret = cb(state, events_ent->d_name);
+		if (ret)
+			break;
+	}
+	close(events_dir.dirfd);
+	return ret;
+}
diff --git a/tools/perf/util/tp_pmu.h b/tools/perf/util/tp_pmu.h
new file mode 100644
index 000000000000..49537303bd73
--- /dev/null
+++ b/tools/perf/util/tp_pmu.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#ifndef __TP_PMU_H
+#define __TP_PMU_H
+
+typedef int (*tp_sys_callback)(void *state, const char *sys_name);
+typedef int (*tp_event_callback)(void *state, const char *sys_name, const char *evt_name);
+
+int tp_pmu__id(const char *sys, const char *name);
+int tp_pmu__for_each_tp_event(const char *sys, void *state, tp_event_callback cb);
+int tp_pmu__for_each_tp_sys(void *state, tp_sys_callback cb);
+
+#endif /* __TP_PMU_H */

From 45b6e281cb0648acd04f896375de69481d29daa7 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:51 -0700
Subject: [PATCH 174/179] perf tp_pmu: Add event APIs

Add event APIs for the tracepoint PMU allowing things like perf list
to function using it. For perf list add the tracepoint format in the
long description (shown with -v).

  $ sudo perf list -v tracepoint

  List of pre-defined events (to be used in -e or -M):

    alarmtimer:alarmtimer_cancel                       [Tracepoint event]
         [name: alarmtimer_cancel
          ID: 416
          format:
          field:unsigned short common_type; offset:0; size:2; signed:0;
          field:unsigned char common_flags; offset:2; size:1; signed:0;
          field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
          field:int common_pid; offset:4; size:4; signed:1;
          field:void * alarm; offset:8; size:8; signed:0;
          field:unsigned char alarm_type; offset:16; size:1; signed:0;
          field:s64 expires; offset:24; size:8; signed:1;
          field:s64 now; offset:32; size:8; signed:1;
          print fmt: "alarmtimer:%p type:%s expires:%llu now:%llu",REC->alarm,__print_flags((1 << REC->alarm_type)," | ",{ 1 << 0,
          "REALTIME" },{ 1 << 1,"BOOTTIME" },{ 1 << 3,"REALTIME Freezer" },{ 1 << 4,"BOOTTIME Freezer" }),REC->expires,REC->now
          . Unit: tracepoint]
    alarmtimer:alarmtimer_fired                        [Tracepoint event]
         [name: alarmtimer_fired
          ID: 418
          ...

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-6-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/pmu.c    |   7 +++
 tools/perf/util/tp_pmu.c | 115 +++++++++++++++++++++++++++++++++++++++
 tools/perf/util/tp_pmu.h |   7 +++
 3 files changed, 129 insertions(+)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f3da6e27bfcb..5a291f1380ed 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -24,6 +24,7 @@
 #include "hwmon_pmu.h"
 #include "pmus.h"
 #include "tool_pmu.h"
+#include "tp_pmu.h"
 #include <util/pmu-bison.h>
 #include <util/pmu-flex.h>
 #include "parse-events.h"
@@ -1983,6 +1984,8 @@ bool perf_pmu__have_event(struct perf_pmu *pmu, const char *name)
 		return false;
 	if (perf_pmu__is_tool(pmu) && tool_pmu__skip_event(name))
 		return false;
+	if (perf_pmu__is_tracepoint(pmu))
+		return tp_pmu__have_event(pmu, name);
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__have_event(pmu, name);
 	if (perf_pmu__is_drm(pmu))
@@ -1998,6 +2001,8 @@ size_t perf_pmu__num_events(struct perf_pmu *pmu)
 {
 	size_t nr;
 
+	if (perf_pmu__is_tracepoint(pmu))
+		return tp_pmu__num_events(pmu);
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__num_events(pmu);
 	if (perf_pmu__is_drm(pmu))
@@ -2068,6 +2073,8 @@ int perf_pmu__for_each_event(struct perf_pmu *pmu, bool skip_duplicate_pmus,
 	struct hashmap_entry *entry;
 	size_t bkt;
 
+	if (perf_pmu__is_tracepoint(pmu))
+		return tp_pmu__for_each_event(pmu, state, cb);
 	if (perf_pmu__is_hwmon(pmu))
 		return hwmon_pmu__for_each_event(pmu, state, cb);
 	if (perf_pmu__is_drm(pmu))
diff --git a/tools/perf/util/tp_pmu.c b/tools/perf/util/tp_pmu.c
index 42bd967a4530..e7534a973247 100644
--- a/tools/perf/util/tp_pmu.c
+++ b/tools/perf/util/tp_pmu.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
 #include "tp_pmu.h"
+#include "pmus.h"
 #include <api/fs/fs.h>
 #include <api/fs/tracing_path.h>
 #include <api/io_dir.h>
@@ -93,3 +94,117 @@ int tp_pmu__for_each_tp_sys(void *state, tp_sys_callback cb)
 	close(events_dir.dirfd);
 	return ret;
 }
+
+bool perf_pmu__is_tracepoint(const struct perf_pmu *pmu)
+{
+	return pmu->type == PERF_TYPE_TRACEPOINT;
+}
+
+struct for_each_event_args {
+	void *state;
+	pmu_event_callback cb;
+	const struct perf_pmu *pmu;
+};
+
+static int for_each_event_cb(void *state, const char *sys_name, const char *evt_name)
+{
+	struct for_each_event_args *args = state;
+	char name[2 * FILENAME_MAX + 2];
+	/* 16 possible hex digits and 22 other characters and \0. */
+	char encoding[16 + 22];
+	char *format = NULL;
+	size_t format_size;
+	struct pmu_event_info info = {
+		.pmu = args->pmu,
+		.pmu_name = args->pmu->name,
+		.event_type_desc = "Tracepoint event",
+	};
+	char *tp_dir = get_events_file(sys_name);
+	char path[PATH_MAX];
+	int id, err;
+
+	if (!tp_dir)
+		return -1;
+
+	scnprintf(path, sizeof(path), "%s/%s/id", tp_dir, evt_name);
+	err = filename__read_int(path, &id);
+	if (err == 0) {
+		snprintf(encoding, sizeof(encoding), "tracepoint/config=0x%x/", id);
+		info.encoding_desc = encoding;
+	}
+
+	scnprintf(path, sizeof(path), "%s/%s/format", tp_dir, evt_name);
+	put_events_file(tp_dir);
+	err = filename__read_str(path, &format, &format_size);
+	if (err == 0) {
+		info.long_desc = format;
+		for (size_t i = 0 ; i < format_size; i++) {
+			/* Swap tabs to spaces due to some rendering issues. */
+			if (format[i] == '\t')
+				format[i] = ' ';
+		}
+	}
+	snprintf(name, sizeof(name), "%s:%s", sys_name, evt_name);
+	info.name = name;
+	err = args->cb(args->state, &info);
+	free(format);
+	return err;
+}
+
+static int for_each_event_sys_cb(void *state, const char *sys_name)
+{
+	return tp_pmu__for_each_tp_event(sys_name, state, for_each_event_cb);
+}
+
+int tp_pmu__for_each_event(struct perf_pmu *pmu, void *state, pmu_event_callback cb)
+{
+	struct for_each_event_args args = {
+		.state = state,
+		.cb = cb,
+		.pmu = pmu,
+	};
+
+	return tp_pmu__for_each_tp_sys(&args, for_each_event_sys_cb);
+}
+
+static int num_events_cb(void *state, const char *sys_name __maybe_unused,
+			 const char *evt_name __maybe_unused)
+{
+	size_t *count = state;
+
+	(*count)++;
+	return 0;
+}
+
+static int num_events_sys_cb(void *state, const char *sys_name)
+{
+	return tp_pmu__for_each_tp_event(sys_name, state, num_events_cb);
+}
+
+size_t tp_pmu__num_events(struct perf_pmu *pmu __maybe_unused)
+{
+	size_t count = 0;
+
+	tp_pmu__for_each_tp_sys(&count, num_events_sys_cb);
+	return count;
+}
+
+bool tp_pmu__have_event(struct perf_pmu *pmu __maybe_unused, const char *name)
+{
+	char *dup_name, *colon;
+	int id;
+
+	colon = strchr(name, ':');
+	if (colon == NULL)
+		return false;
+
+	dup_name = strdup(name);
+	if (!dup_name)
+		return false;
+
+	colon = dup_name + (colon - name);
+	*colon = '\0';
+	id = tp_pmu__id(dup_name, colon + 1);
+	free(dup_name);
+	return id >= 0;
+}
diff --git a/tools/perf/util/tp_pmu.h b/tools/perf/util/tp_pmu.h
index 49537303bd73..30456bd6943d 100644
--- a/tools/perf/util/tp_pmu.h
+++ b/tools/perf/util/tp_pmu.h
@@ -2,6 +2,8 @@
 #ifndef __TP_PMU_H
 #define __TP_PMU_H
 
+#include "pmu.h"
+
 typedef int (*tp_sys_callback)(void *state, const char *sys_name);
 typedef int (*tp_event_callback)(void *state, const char *sys_name, const char *evt_name);
 
@@ -9,4 +11,9 @@ int tp_pmu__id(const char *sys, const char *name);
 int tp_pmu__for_each_tp_event(const char *sys, void *state, tp_event_callback cb);
 int tp_pmu__for_each_tp_sys(void *state, tp_sys_callback cb);
 
+bool perf_pmu__is_tracepoint(const struct perf_pmu *pmu);
+int tp_pmu__for_each_event(struct perf_pmu *pmu, void *state, pmu_event_callback cb);
+size_t tp_pmu__num_events(struct perf_pmu *pmu);
+bool tp_pmu__have_event(struct perf_pmu *pmu, const char *name);
+
 #endif /* __TP_PMU_H */

From 55c09681cc67d175bd62b787c8b6eeafbe1b5851 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:52 -0700
Subject: [PATCH 175/179] perf list: Remove tracepoint printing code

Now that the tp_pmu can iterate and describe events remove the custom
tracepoint printing logic, this avoids perf list showing the
tracepoint events twice.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-list.c      | 29 ++++++++---
 tools/perf/util/print-events.c | 93 ----------------------------------
 tools/perf/util/print-events.h |  2 -
 3 files changed, 23 insertions(+), 101 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 674bb0afbf93..3a4061d02f6c 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -614,9 +614,18 @@ int cmd_list(int argc, const char **argv)
 	for (i = 0; i < argc; ++i) {
 		char *sep, *s;
 
-		if (strcmp(argv[i], "tracepoint") == 0)
-			print_tracepoint_events(&print_cb, ps);
-		else if (strcmp(argv[i], "hw") == 0 ||
+		if (strcmp(argv[i], "tracepoint") == 0) {
+			char *old_pmu_glob = default_ps.pmu_glob;
+
+			default_ps.pmu_glob = strdup("tracepoint");
+			if (!default_ps.pmu_glob) {
+				ret = -1;
+				goto out;
+			}
+			perf_pmus__print_pmu_events(&print_cb, ps);
+			zfree(&default_ps.pmu_glob);
+			default_ps.pmu_glob = old_pmu_glob;
+		} else if (strcmp(argv[i], "hw") == 0 ||
 			 strcmp(argv[i], "hardware") == 0)
 			print_symbol_events(&print_cb, ps, PERF_TYPE_HARDWARE,
 					event_symbols_hw, PERF_COUNT_HW_MAX);
@@ -658,6 +667,7 @@ int cmd_list(int argc, const char **argv)
 #endif
 		else if ((sep = strchr(argv[i], ':')) != NULL) {
 			char *old_pmu_glob = default_ps.pmu_glob;
+			char *old_event_glob = default_ps.event_glob;
 
 			default_ps.event_glob = strdup(argv[i]);
 			if (!default_ps.event_glob) {
@@ -665,13 +675,21 @@ int cmd_list(int argc, const char **argv)
 				goto out;
 			}
 
-			print_tracepoint_events(&print_cb, ps);
+			default_ps.pmu_glob = strdup("tracepoint");
+			if (!default_ps.pmu_glob) {
+				zfree(&default_ps.event_glob);
+				ret = -1;
+				goto out;
+			}
+			perf_pmus__print_pmu_events(&print_cb, ps);
+			zfree(&default_ps.pmu_glob);
+			default_ps.pmu_glob = old_pmu_glob;
 			print_sdt_events(&print_cb, ps);
 			default_ps.metrics = true;
 			default_ps.metricgroups = true;
 			metricgroup__print(&print_cb, ps);
 			zfree(&default_ps.event_glob);
-			default_ps.pmu_glob = old_pmu_glob;
+			default_ps.event_glob = old_event_glob;
 		} else {
 			if (asprintf(&s, "*%s*", argv[i]) < 0) {
 				printf("Critical: Not enough memory! Trying to continue...\n");
@@ -682,7 +700,6 @@ int cmd_list(int argc, const char **argv)
 					event_symbols_hw, PERF_COUNT_HW_MAX);
 			print_hwcache_events(&print_cb, ps);
 			perf_pmus__print_pmu_events(&print_cb, ps);
-			print_tracepoint_events(&print_cb, ps);
 			print_sdt_events(&print_cb, ps);
 			default_ps.metrics = true;
 			default_ps.metricgroups = true;
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index c1a8708b55ab..3a5e5e7bae13 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -44,97 +44,6 @@ static const char * const event_type_descriptors[] = {
 	"Hardware breakpoint",
 };
 
-/*
- * Print the events from <debugfs_mount_point>/tracing/events
- */
-void print_tracepoint_events(const struct print_callbacks *print_cb __maybe_unused, void *print_state __maybe_unused)
-{
-	char *events_path = get_tracing_file("events");
-	int events_fd = open(events_path, O_PATH);
-	struct dirent **sys_namelist = NULL;
-	int sys_items;
-
-	if (events_fd < 0) {
-		pr_err("Error: failed to open tracing events directory\n");
-		pr_err("%s: %s\n", events_path, strerror(errno));
-		return;
-	}
-	put_tracing_file(events_path);
-
-	sys_items = tracing_events__scandir_alphasort(&sys_namelist);
-
-	for (int i = 0; i < sys_items; i++) {
-		struct dirent *sys_dirent = sys_namelist[i];
-		struct dirent **evt_namelist = NULL;
-		int dir_fd;
-		int evt_items;
-
-		if (sys_dirent->d_type != DT_DIR ||
-		    !strcmp(sys_dirent->d_name, ".") ||
-		    !strcmp(sys_dirent->d_name, ".."))
-			goto next_sys;
-
-		dir_fd = openat(events_fd, sys_dirent->d_name, O_PATH);
-		if (dir_fd < 0)
-			goto next_sys;
-
-		evt_items = scandirat(events_fd, sys_dirent->d_name, &evt_namelist, NULL, alphasort);
-		for (int j = 0; j < evt_items; j++) {
-			/*
-			 * Buffer sized at twice the max filename length + 1
-			 * separator + 1 \0 terminator.
-			 */
-			char buf[NAME_MAX * 2 + 2];
-			/* 16 possible hex digits and 22 other characters and \0. */
-			char encoding[16 + 22];
-			struct dirent *evt_dirent = evt_namelist[j];
-			struct io id;
-			__u64 config;
-
-			if (evt_dirent->d_type != DT_DIR ||
-			    !strcmp(evt_dirent->d_name, ".") ||
-			    !strcmp(evt_dirent->d_name, ".."))
-				goto next_evt;
-
-			snprintf(buf, sizeof(buf), "%s/id", evt_dirent->d_name);
-			io__init(&id, openat(dir_fd, buf, O_RDONLY), buf, sizeof(buf));
-
-			if (id.fd < 0)
-				goto next_evt;
-
-			if (io__get_dec(&id, &config) < 0) {
-				close(id.fd);
-				goto next_evt;
-			}
-			close(id.fd);
-
-			snprintf(buf, sizeof(buf), "%s:%s",
-				 sys_dirent->d_name, evt_dirent->d_name);
-			snprintf(encoding, sizeof(encoding), "tracepoint/config=0x%llx/", config);
-			print_cb->print_event(print_state,
-					/*topic=*/NULL,
-					/*pmu_name=*/NULL, /* really "tracepoint" */
-					/*event_name=*/buf,
-					/*event_alias=*/NULL,
-					/*scale_unit=*/NULL,
-					/*deprecated=*/false,
-					"Tracepoint event",
-					/*desc=*/NULL,
-					/*long_desc=*/NULL,
-					encoding);
-next_evt:
-			free(evt_namelist[j]);
-		}
-		close(dir_fd);
-		free(evt_namelist);
-next_sys:
-		free(sys_namelist[i]);
-	}
-
-	free(sys_namelist);
-	close(events_fd);
-}
-
 void print_sdt_events(const struct print_callbacks *print_cb, void *print_state)
 {
 	struct strlist *bidlist, *sdtlist;
@@ -552,8 +461,6 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
 			/*long_desc=*/NULL,
 			/*encoding_desc=*/NULL);
 
-	print_tracepoint_events(print_cb, print_state);
-
 	print_sdt_events(print_cb, print_state);
 
 	metricgroup__print(print_cb, print_state);
diff --git a/tools/perf/util/print-events.h b/tools/perf/util/print-events.h
index 48682e2d166d..4d95b8257e23 100644
--- a/tools/perf/util/print-events.h
+++ b/tools/perf/util/print-events.h
@@ -37,8 +37,6 @@ void print_sdt_events(const struct print_callbacks *print_cb, void *print_state)
 void print_symbol_events(const struct print_callbacks *print_cb, void *print_state,
 			 unsigned int type, const struct event_symbol *syms,
 			 unsigned int max);
-
-void print_tracepoint_events(const struct print_callbacks *print_cb, void *print_state);
 void metricgroup__print(const struct print_callbacks *print_cb, void *print_state);
 bool is_event_supported(u8 type, u64 config);
 

From b91a9abbf4734d411d304661fbb7e2878281eb51 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 25 Jul 2025 11:51:53 -0700
Subject: [PATCH 176/179] perf list: Skip ABI PMUs when printing pmu values

Avoid printing tracepoint, legacy and software events when listing for
the pmu option. Add the PMU type to the print_event callbacks to ease
detection.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250725185202.68671-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-list.c      | 17 +++++++++++++----
 tools/perf/util/pfm.c          |  2 ++
 tools/perf/util/pmus.c         |  2 ++
 tools/perf/util/print-events.c |  5 +++++
 tools/perf/util/print-events.h |  2 +-
 5 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 3a4061d02f6c..caf42276bd0f 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -58,6 +58,8 @@ struct print_state {
 	bool metrics;
 	/** @metricgroups: Controls printing of metric and metric groups. */
 	bool metricgroups;
+	/** @exclude_abi: Exclude PMUs with types less than PERF_TYPE_MAX except PERF_TYPE_RAW. */
+	bool exclude_abi;
 	/** @last_topic: The last printed event topic. */
 	char *last_topic;
 	/** @last_metricgroups: The last printed metric group. */
@@ -113,7 +115,8 @@ static void wordwrap(FILE *fp, const char *s, int start, int max, int corr)
 	}
 }
 
-static void default_print_event(void *ps, const char *topic, const char *pmu_name,
+static void default_print_event(void *ps, const char *topic,
+				const char *pmu_name, u32 pmu_type,
 				const char *event_name, const char *event_alias,
 				const char *scale_unit __maybe_unused,
 				bool deprecated, const char *event_type_desc,
@@ -130,6 +133,9 @@ static void default_print_event(void *ps, const char *topic, const char *pmu_nam
 	if (print_state->pmu_glob && pmu_name && !strglobmatch(pmu_name, print_state->pmu_glob))
 		return;
 
+	if (print_state->exclude_abi && pmu_type < PERF_TYPE_MAX && pmu_type != PERF_TYPE_RAW)
+		return;
+
 	if (print_state->event_glob &&
 	    (!event_name || !strglobmatch(event_name, print_state->event_glob)) &&
 	    (!event_alias || !strglobmatch(event_alias, print_state->event_glob)) &&
@@ -354,7 +360,8 @@ static void fix_escape_fprintf(FILE *fp, struct strbuf *buf, const char *fmt, ..
 	fputs(buf->buf, fp);
 }
 
-static void json_print_event(void *ps, const char *topic, const char *pmu_name,
+static void json_print_event(void *ps, const char *topic,
+			     const char *pmu_name, u32 pmu_type __maybe_unused,
 			     const char *event_name, const char *event_alias,
 			     const char *scale_unit,
 			     bool deprecated, const char *event_type_desc,
@@ -647,9 +654,11 @@ int cmd_list(int argc, const char **argv)
 		} else if (strcmp(argv[i], "cache") == 0 ||
 			 strcmp(argv[i], "hwcache") == 0)
 			print_hwcache_events(&print_cb, ps);
-		else if (strcmp(argv[i], "pmu") == 0)
+		else if (strcmp(argv[i], "pmu") == 0) {
+			default_ps.exclude_abi = true;
 			perf_pmus__print_pmu_events(&print_cb, ps);
-		else if (strcmp(argv[i], "sdt") == 0)
+			default_ps.exclude_abi = false;
+		} else if (strcmp(argv[i], "sdt") == 0)
 			print_sdt_events(&print_cb, ps);
 		else if (strcmp(argv[i], "metric") == 0 || strcmp(argv[i], "metrics") == 0) {
 			default_ps.metricgroups = false;
diff --git a/tools/perf/util/pfm.c b/tools/perf/util/pfm.c
index e89395814e88..e5b3a2a5ddef 100644
--- a/tools/perf/util/pfm.c
+++ b/tools/perf/util/pfm.c
@@ -230,6 +230,7 @@ print_libpfm_event(const struct print_callbacks *print_cb, void *print_state,
 
 	if (is_libpfm_event_supported(name, cpus, threads)) {
 		print_cb->print_event(print_state, topic, pinfo->name,
+				      /*pmu_type=*/PERF_TYPE_RAW,
 				      name, info->equiv,
 				      /*scale_unit=*/NULL,
 				      /*deprecated=*/NULL, "PFM event",
@@ -265,6 +266,7 @@ print_libpfm_event(const struct print_callbacks *print_cb, void *print_state,
 			print_cb->print_event(print_state,
 					topic,
 					pinfo->name,
+					/*pmu_type=*/PERF_TYPE_RAW,
 					name, /*alias=*/NULL,
 					/*scale_unit=*/NULL,
 					/*deprecated=*/NULL, "PFM event",
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c
index 9137bb9036ed..98be2eb8f1f0 100644
--- a/tools/perf/util/pmus.c
+++ b/tools/perf/util/pmus.c
@@ -645,6 +645,7 @@ void perf_pmus__print_pmu_events(const struct print_callbacks *print_cb, void *p
 		print_cb->print_event(print_state,
 				aliases[j].topic,
 				aliases[j].pmu_name,
+				aliases[j].pmu->type,
 				aliases[j].name,
 				aliases[j].alias,
 				aliases[j].scale_unit,
@@ -749,6 +750,7 @@ void perf_pmus__print_raw_pmu_events(const struct print_callbacks *print_cb, voi
 		print_cb->print_event(print_state,
 				/*topic=*/NULL,
 				/*pmu_name=*/NULL,
+				pmu->type,
 				format_args.short_string.buf,
 				/*event_alias=*/NULL,
 				/*scale_unit=*/NULL,
diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index 3a5e5e7bae13..4153124a9948 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -121,6 +121,7 @@ void print_sdt_events(const struct print_callbacks *print_cb, void *print_state)
 		print_cb->print_event(print_state,
 				/*topic=*/NULL,
 				/*pmu_name=*/NULL,
+				PERF_TYPE_TRACEPOINT,
 				evt_name ?: sdt_name->s,
 				/*event_alias=*/NULL,
 				/*deprecated=*/false,
@@ -222,6 +223,7 @@ int print_hwcache_events(const struct print_callbacks *print_cb, void *print_sta
 					print_cb->print_event(print_state,
 							"cache",
 							pmu->name,
+							pmu->type,
 							name,
 							alias_name,
 							/*scale_unit=*/NULL,
@@ -278,6 +280,7 @@ void print_symbol_events(const struct print_callbacks *print_cb, void *print_sta
 		print_cb->print_event(print_state,
 				/*topic=*/NULL,
 				/*pmu_name=*/NULL,
+				type,
 				nd->s,
 				alias,
 				/*scale_unit=*/NULL,
@@ -438,6 +441,7 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
 	print_cb->print_event(print_state,
 			/*topic=*/NULL,
 			/*pmu_name=*/NULL,
+			PERF_TYPE_RAW,
 			"rNNN",
 			/*event_alias=*/NULL,
 			/*scale_unit=*/NULL,
@@ -452,6 +456,7 @@ void print_events(const struct print_callbacks *print_cb, void *print_state)
 	print_cb->print_event(print_state,
 			/*topic=*/NULL,
 			/*pmu_name=*/NULL,
+			PERF_TYPE_BREAKPOINT,
 			"mem:<addr>[/len][:access]",
 			/*scale_unit=*/NULL,
 			/*event_alias=*/NULL,
diff --git a/tools/perf/util/print-events.h b/tools/perf/util/print-events.h
index 4d95b8257e23..d6ba384f0c66 100644
--- a/tools/perf/util/print-events.h
+++ b/tools/perf/util/print-events.h
@@ -12,7 +12,7 @@ struct print_callbacks {
 	void (*print_start)(void *print_state);
 	void (*print_end)(void *print_state);
 	void (*print_event)(void *print_state, const char *topic,
-			const char *pmu_name,
+			const char *pmu_name, u32 pmu_type,
 			const char *event_name, const char *event_alias,
 			const char *scale_unit,
 			bool deprecated, const char *event_type_desc,

From 59edbec7a5c70af6c0058e32eb3750bfb8928d7b Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: Wed, 30 Jul 2025 10:34:20 -0300
Subject: [PATCH 177/179] perf python: Stop using deprecated
 PyUnicode_AsString()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As noticed while building for Fedora 43:

    GEN     /tmp/build/perf/python/perf.cpython-314-x86_64-linux-gnu.so
  /git/perf-6.16.0-rc3/tools/perf/util/python.c: In function ‘get_tracepoint_field’:
  /git/perf-6.16.0-rc3/tools/perf/util/python.c:340:9: error: ‘_PyUnicode_AsString’ is deprecated [-Werror=deprecated-declarations]
    340 |         const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
        |         ^~~~~
  In file included from /usr/include/python3.14/unicodeobject.h:1022,
                   from /usr/include/python3.14/Python.h:89,
                   from /git/perf-6.16.0-rc3/tools/perf/util/python.c:2:
  /usr/include/python3.14/cpython/unicodeobject.h:648:1: note: declared here
    648 | _PyUnicode_AsString(PyObject *unicode)
        | ^~~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors
  error: command '/usr/bin/gcc' failed with exit code 1

Use PyUnicode_AsUTF8() instead and also check if PyObject_Str() fails
before doing so.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/aIofXNK8QLtLIaI3@x1
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/python.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 2f28f71325a8..ea77bea0306f 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -337,7 +337,6 @@ tracepoint_field(const struct pyrf_event *pe, struct tep_format_field *field)
 static PyObject*
 get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
 {
-	const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
 	struct evsel *evsel = pevent->evsel;
 	struct tep_event *tp_format = evsel__tp_format(evsel);
 	struct tep_format_field *field;
@@ -345,7 +344,18 @@ get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
 	if (IS_ERR_OR_NULL(tp_format))
 		return NULL;
 
+	PyObject *obj = PyObject_Str(attr_name);
+	if (obj == NULL)
+		return NULL;
+
+	const char *str = PyUnicode_AsUTF8(obj);
+	if (str == NULL) {
+		Py_DECREF(obj);
+		return NULL;
+	}
+
 	field = tep_find_any_field(tp_format, str);
+	Py_DECREF(obj);
 	return field ? tracepoint_field(pevent, field) : NULL;
 }
 #endif /* HAVE_LIBTRACEEVENT */

From 022245067f07ab913d27054ee9e1fab45256acd5 Mon Sep 17 00:00:00 2001
From: Jan Polensky <japo@linux.ibm.com>
Date: Fri, 25 Jul 2025 19:08:01 +0200
Subject: [PATCH 178/179] perf test: Ensure lock contention using pipe mode

The 'kernel lock contention analysis test' requires reliable triggering
of lock contention. On some systems, previous benchmark calls failed to
generate sufficient contention due to low system activity or resource
limits.

This patch adds the -p (pipe) option to all calls of perf bench sched
messaging, ensuring consistent lock contention without relying on
socket-based communication.

Suggested-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Jan Polensky <japo@linux.ibm.com>
Link: https://lore.kernel.org/r/20250725170801.3176678-1-japo@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/shell/lock_contention.sh | 26 +++++++++++------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/tools/perf/tests/shell/lock_contention.sh b/tools/perf/tests/shell/lock_contention.sh
index dde5bc737eb2..d33d9e4392b0 100755
--- a/tools/perf/tests/shell/lock_contention.sh
+++ b/tools/perf/tests/shell/lock_contention.sh
@@ -44,7 +44,7 @@ check() {
 test_record()
 {
 	echo "Testing perf lock record and perf lock contention"
-	perf lock record -o ${perfdata} -- perf bench sched messaging > /dev/null 2>&1
+	perf lock record -o ${perfdata} -- perf bench sched messaging -p > /dev/null 2>&1
 	# the output goes to the stderr and we expect only 1 output (-E 1)
 	perf lock contention -i ${perfdata} -E 1 -q 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
@@ -64,7 +64,7 @@ test_bpf()
 	fi
 
 	# the perf lock contention output goes to the stderr
-	perf lock con -a -b -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result count is not 1:" "$(cat "${result}" | wc -l)"
 		err=1
@@ -75,7 +75,7 @@ test_bpf()
 test_record_concurrent()
 {
 	echo "Testing perf lock record and perf lock contention at the same time"
-	perf lock record -o- -- perf bench sched messaging 2> /dev/null | \
+	perf lock record -o- -- perf bench sched messaging -p 2> /dev/null | \
 	perf lock contention -i- -E 1 -q 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] Recorded result count is not 1:" "$(cat "${result}" | wc -l)"
@@ -99,7 +99,7 @@ test_aggr_task()
 	fi
 
 	# the perf lock contention output goes to the stderr
-	perf lock con -a -b -t -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -t -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result count is not 1:" "$(cat "${result}" | wc -l)"
 		err=1
@@ -122,7 +122,7 @@ test_aggr_addr()
 	fi
 
 	# the perf lock contention output goes to the stderr
-	perf lock con -a -b -l -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -l -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result count is not 1:" "$(cat "${result}" | wc -l)"
 		err=1
@@ -140,7 +140,7 @@ test_aggr_cgroup()
 	fi
 
 	# the perf lock contention output goes to the stderr
-	perf lock con -a -b -g -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -g -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result count is not 1:" "$(cat "${result}" | wc -l)"
 		err=1
@@ -162,7 +162,7 @@ test_type_filter()
 		return
 	fi
 
-	perf lock con -a -b -Y spinlock -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -Y spinlock -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(grep -c -v spinlock "${result}")" != "0" ]; then
 		echo "[Fail] BPF result should not have non-spinlocks:" "$(cat "${result}")"
 		err=1
@@ -194,7 +194,7 @@ test_lock_filter()
 		return
 	fi
 
-	perf lock con -a -b -L tasklist_lock -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -L tasklist_lock -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(grep -c -v "${test_lock_filter_type}" "${result}")" != "0" ]; then
 		echo "[Fail] BPF result should not have non-${test_lock_filter_type} locks:" "$(cat "${result}")"
 		err=1
@@ -222,7 +222,7 @@ test_stack_filter()
 		return
 	fi
 
-	perf lock con -a -b -S unix_stream -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -S unix_stream -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result should have a lock from unix_stream:" "$(cat "${result}")"
 		err=1
@@ -250,7 +250,7 @@ test_aggr_task_stack_filter()
 		return
 	fi
 
-	perf lock con -a -b -t -S unix_stream -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -t -S unix_stream -E 1 -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result should have a task from unix_stream:" "$(cat "${result}")"
 		err=1
@@ -266,7 +266,7 @@ test_cgroup_filter()
 		return
 	fi
 
-	perf lock con -a -b -g -E 1 -F wait_total -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -g -E 1 -F wait_total -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result should have a cgroup result:" "$(cat "${result}")"
 		err=1
@@ -274,7 +274,7 @@ test_cgroup_filter()
 	fi
 
 	cgroup=$(cat "${result}" | awk '{ print $3 }')
-	perf lock con -a -b -g -E 1 -G "${cgroup}" -q -- perf bench sched messaging > /dev/null 2> ${result}
+	perf lock con -a -b -g -E 1 -G "${cgroup}" -q -- perf bench sched messaging -p > /dev/null 2> ${result}
 	if [ "$(cat "${result}" | wc -l)" != "1" ]; then
 		echo "[Fail] BPF result should have a result with cgroup filter:" "$(cat "${cgroup}")"
 		err=1
@@ -309,7 +309,7 @@ test_csv_output()
 	fi
 
 	# the perf lock contention output goes to the stderr
-	perf lock con -a -b -E 1 -x , --output ${result} -- perf bench sched messaging > /dev/null 2>&1
+	perf lock con -a -b -E 1 -x , --output ${result} -- perf bench sched messaging -p > /dev/null 2>&1
 	output=$(grep -v "^#" ${result} | tr -d -c , | wc -c)
 	if [ "${header}" != "${output}" ]; then
 		echo "[Fail] BPF result does not match the number of commas: ${header} != ${output}"

From 6235ce77749f45cac27f630337e2fdf04e8a6c73 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Thu, 31 Jul 2025 00:03:30 -0700
Subject: [PATCH 179/179] perf record: Cache build-ID of hit DSOs only

It post-processes samples to find which DSO has samples.  Based on that
info, it can save used DSOs in the build-ID cache directory.  But for
some reason, it saves all DSOs without checking the hit mark.  Skipping
unused DSOs can give some speedup especially with --buildid-mmap being
default.

On my idle machine, `time perf record -a sleep 1` goes down from 3 sec
to 1.5 sec with this change.

Fixes: e29386c8f7d71fa5 ("perf record: Add --buildid-mmap option to enable PERF_RECORD_MMAP2's build id")
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250731070330.57116-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/build-id.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index e2b295fe4d2f..a7018a3b0437 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -872,7 +872,7 @@ static int dso__cache_build_id(struct dso *dso, struct machine *machine,
 	char *allocated_name = NULL;
 	int ret = 0;
 
-	if (!dso__has_build_id(dso))
+	if (!dso__has_build_id(dso) || !dso__hit(dso))
 		return 0;
 
 	if (dso__is_kcore(dso)) {