perf evsel: Support event groups
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / tools / perf / util / evsel.h
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1#ifndef __PERF_EVSEL_H
2#define __PERF_EVSEL_H 1
3
4#include <linux/list.h>
c52b12ed 5#include <stdbool.h>
d030260a 6#include "../../../include/linux/perf_event.h"
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7#include "types.h"
8#include "xyarray.h"
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9
10struct perf_counts_values {
11 union {
12 struct {
13 u64 val;
14 u64 ena;
15 u64 run;
16 };
17 u64 values[3];
18 };
19};
20
21struct perf_counts {
22 s8 scaled;
23 struct perf_counts_values aggr;
24 struct perf_counts_values cpu[];
25};
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26
27struct perf_evsel {
28 struct list_head node;
29 struct perf_event_attr attr;
30 char *filter;
31 struct xyarray *fd;
c52b12ed 32 struct perf_counts *counts;
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33 int idx;
34 void *priv;
35};
36
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37struct cpu_map;
38struct thread_map;
39
23a2f3ab 40struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
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41void perf_evsel__delete(struct perf_evsel *evsel);
42
43int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
c52b12ed 44int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
69aad6f1 45void perf_evsel__free_fd(struct perf_evsel *evsel);
c52b12ed 46void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
69aad6f1 47
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48int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
49 struct cpu_map *cpus, bool group);
50int perf_evsel__open_per_thread(struct perf_evsel *evsel,
51 struct thread_map *threads, bool group);
52int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
53 struct thread_map *threads, bool group);
48290609 54
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55#define perf_evsel__match(evsel, t, c) \
56 (evsel->attr.type == PERF_TYPE_##t && \
57 evsel->attr.config == PERF_COUNT_##c)
58
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59int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
60 int cpu, int thread, bool scale);
61
62/**
63 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
64 *
65 * @evsel - event selector to read value
66 * @cpu - CPU of interest
67 * @thread - thread of interest
68 */
69static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
70 int cpu, int thread)
71{
72 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
73}
74
75/**
76 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
77 *
78 * @evsel - event selector to read value
79 * @cpu - CPU of interest
80 * @thread - thread of interest
81 */
82static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
83 int cpu, int thread)
84{
85 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
86}
87
88int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
89 bool scale);
90
91/**
92 * perf_evsel__read - Read the aggregate results on all CPUs
93 *
94 * @evsel - event selector to read value
95 * @ncpus - Number of cpus affected, from zero
96 * @nthreads - Number of threads affected, from zero
97 */
98static inline int perf_evsel__read(struct perf_evsel *evsel,
99 int ncpus, int nthreads)
100{
101 return __perf_evsel__read(evsel, ncpus, nthreads, false);
102}
103
104/**
105 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
106 *
107 * @evsel - event selector to read value
108 * @ncpus - Number of cpus affected, from zero
109 * @nthreads - Number of threads affected, from zero
110 */
111static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
112 int ncpus, int nthreads)
113{
114 return __perf_evsel__read(evsel, ncpus, nthreads, true);
115}
116
69aad6f1 117#endif /* __PERF_EVSEL_H */