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;
68 unsigned int sample_size;
75 struct perf_record_opts;
77 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
78 void perf_evsel__init(struct perf_evsel *evsel,
79 struct perf_event_attr *attr, int idx);
80 void perf_evsel__exit(struct perf_evsel *evsel);
81 void perf_evsel__delete(struct perf_evsel *evsel);
83 void perf_evsel__config(struct perf_evsel *evsel,
84 struct perf_record_opts *opts,
85 struct perf_evsel *first);
87 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
89 #define PERF_EVSEL__MAX_ALIASES 8
91 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
92 [PERF_EVSEL__MAX_ALIASES];
93 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
94 [PERF_EVSEL__MAX_ALIASES];
95 const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
96 [PERF_EVSEL__MAX_ALIASES];
97 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
98 char *bf, size_t size);
99 const char *perf_evsel__name(struct perf_evsel *evsel);
101 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
102 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
103 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
104 void perf_evsel__free_fd(struct perf_evsel *evsel);
105 void perf_evsel__free_id(struct perf_evsel *evsel);
106 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
108 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
109 struct cpu_map *cpus, bool group,
110 struct xyarray *group_fds);
111 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
112 struct thread_map *threads, bool group,
113 struct xyarray *group_fds);
114 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
115 struct thread_map *threads, bool group,
116 struct xyarray *group_fds);
117 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
119 #define perf_evsel__match(evsel, t, c) \
120 (evsel->attr.type == PERF_TYPE_##t && \
121 evsel->attr.config == PERF_COUNT_##c)
123 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
124 int cpu, int thread, bool scale);
127 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
129 * @evsel - event selector to read value
130 * @cpu - CPU of interest
131 * @thread - thread of interest
133 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
136 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
140 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
142 * @evsel - event selector to read value
143 * @cpu - CPU of interest
144 * @thread - thread of interest
146 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
149 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
152 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
156 * perf_evsel__read - Read the aggregate results on all CPUs
158 * @evsel - event selector to read value
159 * @ncpus - Number of cpus affected, from zero
160 * @nthreads - Number of threads affected, from zero
162 static inline int perf_evsel__read(struct perf_evsel *evsel,
163 int ncpus, int nthreads)
165 return __perf_evsel__read(evsel, ncpus, nthreads, false);
169 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
171 * @evsel - event selector to read value
172 * @ncpus - Number of cpus affected, from zero
173 * @nthreads - Number of threads affected, from zero
175 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
176 int ncpus, int nthreads)
178 return __perf_evsel__read(evsel, ncpus, nthreads, true);
181 void hists__init(struct hists *hists);
183 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
184 struct perf_sample *sample, bool swapped);
185 #endif /* __PERF_EVSEL_H */