#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" #include "hist.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 *sample_id; u64 *id; struct perf_counts *counts; int idx; int ids; struct hists hists; char *name; union { void *priv; off_t id_offset; }; struct cgroup_sel *cgrp; struct { void *func; void *data; } handler; bool supported; }; struct cpu_map; struct thread_map; struct perf_evlist; struct perf_record_opts; 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); void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts, struct perf_evsel *first); 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, struct xyarray *group_fds); int perf_evsel__open_per_thread(struct perf_evsel *evsel, struct thread_map *threads, bool group, struct xyarray *group_fds); int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, struct thread_map *threads, bool group, struct xyarray *group_fds); void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads); #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); } int __perf_evsel__sample_size(u64 sample_type); static inline int perf_evsel__sample_size(struct perf_evsel *evsel) { return __perf_evsel__sample_size(evsel->attr.sample_type); } void hists__init(struct hists *hists); #endif /* __PERF_EVSEL_H */