blob: f79bb2c09a6cbea510e31d260a1fabb778e13950 [file] [log] [blame]
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001#ifndef __PERF_EVSEL_H
2#define __PERF_EVSEL_H 1
3
4#include <linux/list.h>
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -02005#include <stdbool.h>
Stephane Eraniand0302602011-01-04 16:30:01 +02006#include "../../../include/linux/perf_event.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02007#include "types.h"
8#include "xyarray.h"
Stephane Eranian023695d2011-02-14 11:20:01 +02009#include "cgroup.h"
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -030010#include "hist.h"
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020011
12struct perf_counts_values {
13 union {
14 struct {
15 u64 val;
16 u64 ena;
17 u64 run;
18 };
19 u64 values[3];
20 };
21};
22
23struct perf_counts {
24 s8 scaled;
25 struct perf_counts_values aggr;
26 struct perf_counts_values cpu[];
27};
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020028
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020029struct perf_evsel;
30
31/*
32 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
33 * more than one entry in the evlist.
34 */
35struct perf_sample_id {
36 struct hlist_node node;
37 u64 id;
38 struct perf_evsel *evsel;
39};
40
Stephane Eranianf0c55bc2011-02-16 15:10:01 +020041/** struct perf_evsel - event selector
42 *
43 * @name - Can be set to retain the original event name passed by the user,
44 * so that when showing results in tools such as 'perf stat', we
45 * show the name used, not some alias.
46 */
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020047struct perf_evsel {
48 struct list_head node;
49 struct perf_event_attr attr;
50 char *filter;
51 struct xyarray *fd;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030052 struct xyarray *sample_id;
53 u64 *id;
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020054 struct perf_counts *counts;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020055 int idx;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030056 int ids;
Arnaldo Carvalho de Meloe248de32011-03-05 21:40:06 -030057 struct hists hists;
Stephane Eranianf0c55bc2011-02-16 15:10:01 +020058 char *name;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030059 union {
60 void *priv;
61 off_t id_offset;
62 };
Stephane Eranian023695d2011-02-14 11:20:01 +020063 struct cgroup_sel *cgrp;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020064};
65
Arnaldo Carvalho de Melo86bd5e82011-01-03 23:09:46 -020066struct cpu_map;
67struct thread_map;
Arnaldo Carvalho de Melo70082dd2011-01-12 17:03:24 -020068struct perf_evlist;
Arnaldo Carvalho de Melo86bd5e82011-01-03 23:09:46 -020069
Lin Ming23a2f3a2011-01-07 11:11:09 +080070struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
Arnaldo Carvalho de Meloef1d1af2011-01-18 21:41:45 -020071void perf_evsel__init(struct perf_evsel *evsel,
72 struct perf_event_attr *attr, int idx);
73void perf_evsel__exit(struct perf_evsel *evsel);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020074void perf_evsel__delete(struct perf_evsel *evsel);
75
76int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020077int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020078int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020079void perf_evsel__free_fd(struct perf_evsel *evsel);
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020080void perf_evsel__free_id(struct perf_evsel *evsel);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020081void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020082
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -020083int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -030084 struct cpu_map *cpus, bool group);
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -020085int perf_evsel__open_per_thread(struct perf_evsel *evsel,
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -030086 struct thread_map *threads, bool group);
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -020087int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -030088 struct thread_map *threads, bool group);
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -020089
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -020090#define perf_evsel__match(evsel, t, c) \
91 (evsel->attr.type == PERF_TYPE_##t && \
92 evsel->attr.config == PERF_COUNT_##c)
93
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020094int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
95 int cpu, int thread, bool scale);
96
97/**
98 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
99 *
100 * @evsel - event selector to read value
101 * @cpu - CPU of interest
102 * @thread - thread of interest
103 */
104static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
105 int cpu, int thread)
106{
107 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
108}
109
110/**
111 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
112 *
113 * @evsel - event selector to read value
114 * @cpu - CPU of interest
115 * @thread - thread of interest
116 */
117static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
118 int cpu, int thread)
119{
120 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
121}
122
123int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
124 bool scale);
125
126/**
127 * perf_evsel__read - Read the aggregate results on all CPUs
128 *
129 * @evsel - event selector to read value
130 * @ncpus - Number of cpus affected, from zero
131 * @nthreads - Number of threads affected, from zero
132 */
133static inline int perf_evsel__read(struct perf_evsel *evsel,
134 int ncpus, int nthreads)
135{
136 return __perf_evsel__read(evsel, ncpus, nthreads, false);
137}
138
139/**
140 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
141 *
142 * @evsel - event selector to read value
143 * @ncpus - Number of cpus affected, from zero
144 * @nthreads - Number of threads affected, from zero
145 */
146static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
147 int ncpus, int nthreads)
148{
149 return __perf_evsel__read(evsel, ncpus, nthreads, true);
150}
151
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200152#endif /* __PERF_EVSEL_H */