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#ifndef __PERF_EVSEL_H
#define __PERF_EVSEL_H 1
#include <linux/list.h>
#include <stdbool.h>
#include "../../../include/linux/perf_event.h"
#include "types.h"
#include "xyarray.h"
#include "cgroup.h"
struct perf_counts_values {
union {
struct {
u64 val;
u64 ena;
u64 run;
};
u64 values[3];
};
};
struct perf_counts {
s8 scaled;
struct perf_counts_values aggr;
struct perf_counts_values cpu[];
};
struct perf_evsel;
/*
* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
* more than one entry in the evlist.
*/
struct perf_sample_id {
struct hlist_node node;
u64 id;
struct perf_evsel *evsel;
};
/** struct perf_evsel - event selector
*
* @name - Can be set to retain the original event name passed by the user,
* so that when showing results in tools such as 'perf stat', we
* show the name used, not some alias.
*/
struct perf_evsel {
struct list_head node;
struct perf_event_attr attr;
char *filter;
struct xyarray *fd;
struct xyarray *id;
struct perf_counts *counts;
int idx;
char *name;
void *priv;
struct cgroup_sel *cgrp;
};
struct cpu_map;
struct thread_map;
struct perf_evlist;
struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
void perf_evsel__init(struct perf_evsel *evsel,
struct perf_event_attr *attr, int idx);
void perf_evsel__exit(struct perf_evsel *evsel);
void perf_evsel__delete(struct perf_evsel *evsel);
int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__free_fd(struct perf_evsel *evsel);
void perf_evsel__free_id(struct perf_evsel *evsel);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
struct cpu_map *cpus, bool group, bool inherit);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
struct thread_map *threads, bool group, bool inherit);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
struct thread_map *threads, bool group, bool inherit);
#define perf_evsel__match(evsel, t, c) \
(evsel->attr.type == PERF_TYPE_##t && \
evsel->attr.config == PERF_COUNT_##c)
int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
int cpu, int thread, bool scale);
/**
* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
*
* @evsel - event selector to read value
* @cpu - CPU of interest
* @thread - thread of interest
*/
static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
int cpu, int thread)
{
return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
}
/**
* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
*
* @evsel - event selector to read value
* @cpu - CPU of interest
* @thread - thread of interest
*/
static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
int cpu, int thread)
{
return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
}
int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
bool scale);
/**
* perf_evsel__read - Read the aggregate results on all CPUs
*
* @evsel - event selector to read value
* @ncpus - Number of cpus affected, from zero
* @nthreads - Number of threads affected, from zero
*/
static inline int perf_evsel__read(struct perf_evsel *evsel,
int ncpus, int nthreads)
{
return __perf_evsel__read(evsel, ncpus, nthreads, false);
}
/**
* perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
*
* @evsel - event selector to read value
* @ncpus - Number of cpus affected, from zero
* @nthreads - Number of threads affected, from zero
*/
static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
int ncpus, int nthreads)
{
return __perf_evsel__read(evsel, ncpus, nthreads, true);
}
#endif /* __PERF_EVSEL_H */
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