From dfab3e4b0bf7f772889e8ebc2fd691fc95b596c9 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Thu, 11 Jun 2026 18:24:13 -0700 Subject: [PATCH] perf pmu: Recognize default_core as a core PMU in more places MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The python metrics code used in places like ilist.py passes a pmu-filter of "default_core" on non-hybrid x86/ARM/.. systems. As a PMU like "cpu" isn't a literal name match then no PMU matches "default_core" and the events fail to parse for the metric. Fix the name matching and PMU lookup for "default_core" and check that it fixes ilist.py. Fixes: 74e2dbe7be50 ("perf tools: Add --pmu-filter option for filtering PMUs") Signed-off-by: Ian Rogers Reviewed‑by: Qinxin Xia Signed-off-by: Namhyung Kim --- tools/perf/util/pmu.c | 6 +++++- tools/perf/util/pmus.c | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index a550f030b85d..836e3b5615cd 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -2660,8 +2660,12 @@ bool perf_pmu__wildcard_match(const struct perf_pmu *pmu, const char *wildcard_t pmu->name, pmu->alias_name, }; - bool need_fnmatch = strisglob(wildcard_to_match); + bool need_fnmatch; + if (pmu->is_core && !strcmp(wildcard_to_match, "default_core")) + return true; + + need_fnmatch = strisglob(wildcard_to_match); if (!strncmp(wildcard_to_match, "uncore_", 7)) wildcard_to_match += 7; diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c index 5e3f571450fe..e0a4cb2428ca 100644 --- a/tools/perf/util/pmus.c +++ b/tools/perf/util/pmus.c @@ -150,6 +150,8 @@ struct perf_pmu *perf_pmus__find(const char *name) bool core_pmu; unsigned int to_read_pmus = 0; + if (!strcmp(name, "default_core")) + return perf_pmus__find_core_pmu(); /* * Once PMU is loaded it stays in the list, * so we keep us from multiple reading/parsing