tools/perf/pmu-events/pmu-events.h

Source file repositories/reference/linux-study-clean/tools/perf/pmu-events/pmu-events.h

File Facts

System
Linux kernel
Corpus path
tools/perf/pmu-events/pmu-events.h
Extension
.h
Size
4663 bytes
Lines
145
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pmu_event {
	const char *name;
	const char *compat;
	const char *event;
	const char *desc;
	const char *topic;
	const char *long_desc;
	const char *pmu;
	const char *unit;
	const char *retirement_latency_mean;
	const char *retirement_latency_min;
	const char *retirement_latency_max;
	bool perpkg;
	bool deprecated;
};

struct pmu_metric {
	const char *pmu;
	const char *metric_name;
	const char *metric_group;
	const char *metric_expr;
	const char *metric_threshold;
	const char *unit;
	const char *compat;
	const char *desc;
	const char *long_desc;
	const char *metricgroup_no_group;
	const char *default_metricgroup_name;
	enum aggr_mode_class aggr_mode;
	enum metric_event_groups event_grouping;
	bool default_show_events;
};

struct pmu_events_table;
struct pmu_metrics_table;

#define PMU_EVENTS__NOT_FOUND -1000
#define PMU_METRICS__NOT_FOUND -1000

typedef int (*pmu_event_iter_fn)(const struct pmu_event *pe,
				 const struct pmu_events_table *table,
				 void *data);

typedef int (*pmu_metric_iter_fn)(const struct pmu_metric *pm,
				  const struct pmu_metrics_table *table,
				  void *data);

int pmu_events_table__for_each_event(const struct pmu_events_table *table,
				    struct perf_pmu *pmu,
				    pmu_event_iter_fn fn,
				    void *data);
/*
 * Search for a table and entry matching with pmu__name_wildcard_match or any
 * tables if pmu is NULL. Each matching event has fn called on it. 0 implies to
 * success/continue the search while non-zero means to terminate. The special
 * value PMU_EVENTS__NOT_FOUND is used to indicate no event was found in one of
 * the tables which doesn't terminate the search of all tables.
 */
int pmu_events_table__find_event(const struct pmu_events_table *table,
                                 struct perf_pmu *pmu,
                                 const char *name,
                                 pmu_event_iter_fn fn,
				 void *data);
size_t pmu_events_table__num_events(const struct pmu_events_table *table,
				    struct perf_pmu *pmu);

int pmu_metrics_table__for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
				     void *data);
/*
 * Search for a table and entry matching with pmu__name_wildcard_match or any
 * tables if pmu is NULL. Each matching metric has fn called on it. 0 implies to
 * success/continue the search while non-zero means to terminate. The special
 * value PMU_METRICS__NOT_FOUND is used to indicate no metric was found in one
 * of the tables which doesn't terminate the search of all tables.
 */
int pmu_metrics_table__find_metric(const struct pmu_metrics_table *table,
				   struct perf_pmu *pmu,
				   const char *metric,
				   pmu_metric_iter_fn fn,
				   void *data);

const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu);
const struct pmu_events_table *perf_pmu__default_core_events_table(void);
const struct pmu_metrics_table *pmu_metrics_table__find(void);
const struct pmu_metrics_table *pmu_metrics_table__default(void);
const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid);
const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid);
int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data);
int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data);

Annotation

Implementation Notes