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,
84 struct perf_evsel *first);
86 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
88 #define PERF_EVSEL__MAX_ALIASES 8
90 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
91 [PERF_EVSEL__MAX_ALIASES];
92 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
93 [PERF_EVSEL__MAX_ALIASES];
94 const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
95 [PERF_EVSEL__MAX_ALIASES];
96 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
97 char *bf, size_t size);
98 const char *perf_evsel__name(struct perf_evsel *evsel);
100 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
101 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
102 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
103 void perf_evsel__free_fd(struct perf_evsel *evsel);
104 void perf_evsel__free_id(struct perf_evsel *evsel);
105 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
107 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
108 struct cpu_map *cpus, bool group,
109 struct xyarray *group_fds);
110 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
111 struct thread_map *threads, bool group,
112 struct xyarray *group_fds);
113 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
114 struct thread_map *threads, bool group,
115 struct xyarray *group_fds);
116 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
118 #define perf_evsel__match(evsel, t, c) \
119 (evsel->attr.type == PERF_TYPE_##t && \
120 evsel->attr.config == PERF_COUNT_##c)
122 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
123 int cpu, int thread, bool scale);
126 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
128 * @evsel - event selector to read value
129 * @cpu - CPU of interest
130 * @thread - thread of interest
132 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
135 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
139 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
141 * @evsel - event selector to read value
142 * @cpu - CPU of interest
143 * @thread - thread of interest
145 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
148 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
151 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
155 * perf_evsel__read - Read the aggregate results on all CPUs
157 * @evsel - event selector to read value
158 * @ncpus - Number of cpus affected, from zero
159 * @nthreads - Number of threads affected, from zero
161 static inline int perf_evsel__read(struct perf_evsel *evsel,
162 int ncpus, int nthreads)
164 return __perf_evsel__read(evsel, ncpus, nthreads, false);
168 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
170 * @evsel - event selector to read value
171 * @ncpus - Number of cpus affected, from zero
172 * @nthreads - Number of threads affected, from zero
174 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
175 int ncpus, int nthreads)
177 return __perf_evsel__read(evsel, ncpus, nthreads, true);
180 int __perf_evsel__sample_size(u64 sample_type);
182 static inline int perf_evsel__sample_size(struct perf_evsel *evsel)
184 return __perf_evsel__sample_size(evsel->attr.sample_type);
187 void hists__init(struct hists *hists);
189 #endif /* __PERF_EVSEL_H */