2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
6 #include "../../../include/linux/perf_event.h"
12 struct perf_counts_values {
25 struct perf_counts_values aggr;
26 struct perf_counts_values cpu[];
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.
35 struct perf_sample_id {
36 struct hlist_node node;
38 struct perf_evsel *evsel;
41 /** struct perf_evsel - event selector
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.
48 struct list_head node;
49 struct perf_event_attr attr;
52 struct xyarray *sample_id;
54 struct perf_counts *counts;
63 struct cgroup_sel *cgrp;
74 struct perf_record_opts;
76 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
77 void perf_evsel__init(struct perf_evsel *evsel,
78 struct perf_event_attr *attr, int idx);
79 void perf_evsel__exit(struct perf_evsel *evsel);
80 void perf_evsel__delete(struct perf_evsel *evsel);
82 void perf_evsel__config(struct perf_evsel *evsel,
83 struct perf_record_opts *opts);
85 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
86 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
87 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
88 void perf_evsel__free_fd(struct perf_evsel *evsel);
89 void perf_evsel__free_id(struct perf_evsel *evsel);
90 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
92 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
93 struct cpu_map *cpus, bool group,
94 struct xyarray *group_fds);
95 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
96 struct thread_map *threads, bool group,
97 struct xyarray *group_fds);
98 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
99 struct thread_map *threads, bool group,
100 struct xyarray *group_fds);
101 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
103 #define perf_evsel__match(evsel, t, c) \
104 (evsel->attr.type == PERF_TYPE_##t && \
105 evsel->attr.config == PERF_COUNT_##c)
107 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
108 int cpu, int thread, bool scale);
111 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
113 * @evsel - event selector to read value
114 * @cpu - CPU of interest
115 * @thread - thread of interest
117 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
120 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
124 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
126 * @evsel - event selector to read value
127 * @cpu - CPU of interest
128 * @thread - thread of interest
130 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
133 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
136 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
140 * perf_evsel__read - Read the aggregate results on all CPUs
142 * @evsel - event selector to read value
143 * @ncpus - Number of cpus affected, from zero
144 * @nthreads - Number of threads affected, from zero
146 static inline int perf_evsel__read(struct perf_evsel *evsel,
147 int ncpus, int nthreads)
149 return __perf_evsel__read(evsel, ncpus, nthreads, false);
153 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
155 * @evsel - event selector to read value
156 * @ncpus - Number of cpus affected, from zero
157 * @nthreads - Number of threads affected, from zero
159 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
160 int ncpus, int nthreads)
162 return __perf_evsel__read(evsel, ncpus, nthreads, true);
165 int __perf_evsel__sample_size(u64 sample_type);
167 static inline int perf_evsel__sample_size(struct perf_evsel *evsel)
169 return __perf_evsel__sample_size(evsel->attr.sample_type);
172 #endif /* __PERF_EVSEL_H */