2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
6 #include "../../../include/linux/perf_event.h"
11 struct perf_counts_values {
24 struct perf_counts_values aggr;
25 struct perf_counts_values cpu[];
31 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
32 * more than one entry in the evlist.
34 struct perf_sample_id {
35 struct hlist_node node;
37 struct perf_evsel *evsel;
40 /** struct perf_evsel - event selector
42 * @name - Can be set to retain the original event name passed by the user,
43 * so that when showing results in tools such as 'perf stat', we
44 * show the name used, not some alias.
47 struct list_head node;
48 struct perf_event_attr attr;
52 struct perf_counts *counts;
56 struct cgroup_sel *cgrp;
63 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
64 void perf_evsel__init(struct perf_evsel *evsel,
65 struct perf_event_attr *attr, int idx);
66 void perf_evsel__exit(struct perf_evsel *evsel);
67 void perf_evsel__delete(struct perf_evsel *evsel);
69 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
70 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
71 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
72 void perf_evsel__free_fd(struct perf_evsel *evsel);
73 void perf_evsel__free_id(struct perf_evsel *evsel);
74 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
76 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
77 struct cpu_map *cpus, bool group, bool inherit);
78 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
79 struct thread_map *threads, bool group, bool inherit);
80 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
81 struct thread_map *threads, bool group, bool inherit);
83 #define perf_evsel__match(evsel, t, c) \
84 (evsel->attr.type == PERF_TYPE_##t && \
85 evsel->attr.config == PERF_COUNT_##c)
87 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
88 int cpu, int thread, bool scale);
91 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
93 * @evsel - event selector to read value
94 * @cpu - CPU of interest
95 * @thread - thread of interest
97 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
100 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
104 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
106 * @evsel - event selector to read value
107 * @cpu - CPU of interest
108 * @thread - thread of interest
110 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
113 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
116 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
120 * perf_evsel__read - Read the aggregate results on all CPUs
122 * @evsel - event selector to read value
123 * @ncpus - Number of cpus affected, from zero
124 * @nthreads - Number of threads affected, from zero
126 static inline int perf_evsel__read(struct perf_evsel *evsel,
127 int ncpus, int nthreads)
129 return __perf_evsel__read(evsel, ncpus, nthreads, false);
133 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
135 * @evsel - event selector to read value
136 * @ncpus - Number of cpus affected, from zero
137 * @nthreads - Number of threads affected, from zero
139 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
140 int ncpus, int nthreads)
142 return __perf_evsel__read(evsel, ncpus, nthreads, true);
145 #endif /* __PERF_EVSEL_H */