mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-04-05 02:26:24 -04:00
6b9c0261b3
Provide ratio-to-prev term which allows the user to set the event sample period of two events corresponding to a desired ratio. If using on an Intel x86 platform with Auto Counter Reload support, also set corresponding event's config2 attribute with a bitmask which counters to reset and which counters to sample if the desired ratio is met or exceeded. On other platforms, only the sample period is affected by the ratio-to-prev term. Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Thomas Falcon <thomas.falcon@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#ifndef __PERF_EVSEL_CONFIG_H
|
|
#define __PERF_EVSEL_CONFIG_H 1
|
|
|
|
#include <linux/types.h>
|
|
#include <stdbool.h>
|
|
|
|
/*
|
|
* The 'struct evsel_config_term' is used to pass event
|
|
* specific configuration data to evsel__config routine.
|
|
* It is allocated within event parsing and attached to
|
|
* evsel::config_terms list head.
|
|
*/
|
|
enum evsel_term_type {
|
|
EVSEL__CONFIG_TERM_PERIOD,
|
|
EVSEL__CONFIG_TERM_FREQ,
|
|
EVSEL__CONFIG_TERM_TIME,
|
|
EVSEL__CONFIG_TERM_CALLGRAPH,
|
|
EVSEL__CONFIG_TERM_STACK_USER,
|
|
EVSEL__CONFIG_TERM_INHERIT,
|
|
EVSEL__CONFIG_TERM_MAX_STACK,
|
|
EVSEL__CONFIG_TERM_MAX_EVENTS,
|
|
EVSEL__CONFIG_TERM_OVERWRITE,
|
|
EVSEL__CONFIG_TERM_DRV_CFG,
|
|
EVSEL__CONFIG_TERM_BRANCH,
|
|
EVSEL__CONFIG_TERM_PERCORE,
|
|
EVSEL__CONFIG_TERM_AUX_OUTPUT,
|
|
EVSEL__CONFIG_TERM_AUX_ACTION,
|
|
EVSEL__CONFIG_TERM_AUX_SAMPLE_SIZE,
|
|
EVSEL__CONFIG_TERM_CFG_CHG,
|
|
EVSEL__CONFIG_TERM_RATIO_TO_PREV,
|
|
};
|
|
|
|
struct evsel_config_term {
|
|
struct list_head list;
|
|
enum evsel_term_type type;
|
|
bool free_str;
|
|
union {
|
|
u64 period;
|
|
u64 freq;
|
|
bool time;
|
|
u64 stack_user;
|
|
int max_stack;
|
|
bool inherit;
|
|
bool overwrite;
|
|
unsigned long max_events;
|
|
bool percore;
|
|
bool aux_output;
|
|
u32 aux_sample_size;
|
|
u64 cfg_chg;
|
|
char *str;
|
|
int cpu;
|
|
} val;
|
|
bool weak;
|
|
};
|
|
|
|
struct evsel;
|
|
|
|
struct evsel_config_term *__evsel__get_config_term(struct evsel *evsel, enum evsel_term_type type);
|
|
|
|
#define evsel__get_config_term(evsel, type) \
|
|
__evsel__get_config_term(evsel, EVSEL__CONFIG_TERM_ ## type)
|
|
|
|
#endif // __PERF_EVSEL_CONFIG_H
|