1 #ifndef __PERF_EVSEL_H 2 #define __PERF_EVSEL_H 1 3 4 /* ANDROID_CHANGE_BEGIN */ 5 #if 0 6 #include <linux/list.h> 7 #include <stdbool.h> 8 #include "../../../include/linux/perf_event.h" 9 #else 10 #include "include/linux/list.h" 11 #include <stdbool.h> 12 #include "include/linux/added/perf_event.h" 13 #endif 14 /* ANDROID_CHANGE_END */ 15 #include "types.h" 16 #include "xyarray.h" 17 #include "cgroup.h" 18 #include "hist.h" 19 20 struct perf_counts_values { 21 union { 22 struct { 23 u64 val; 24 u64 ena; 25 u64 run; 26 }; 27 u64 values[3]; 28 }; 29 }; 30 31 struct perf_counts { 32 s8 scaled; 33 struct perf_counts_values aggr; 34 struct perf_counts_values cpu[]; 35 }; 36 37 struct perf_evsel; 38 39 /* 40 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are 41 * more than one entry in the evlist. 42 */ 43 struct perf_sample_id { 44 struct hlist_node node; 45 u64 id; 46 struct perf_evsel *evsel; 47 }; 48 49 /** struct perf_evsel - event selector 50 * 51 * @name - Can be set to retain the original event name passed by the user, 52 * so that when showing results in tools such as 'perf stat', we 53 * show the name used, not some alias. 54 */ 55 struct perf_evsel { 56 struct list_head node; 57 struct perf_event_attr attr; 58 char *filter; 59 struct xyarray *fd; 60 struct xyarray *sample_id; 61 u64 *id; 62 struct perf_counts *counts; 63 int idx; 64 int ids; 65 struct hists hists; 66 char *name; 67 union { 68 void *priv; 69 off_t id_offset; 70 }; 71 struct cgroup_sel *cgrp; 72 }; 73 74 struct cpu_map; 75 struct thread_map; 76 struct perf_evlist; 77 78 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx); 79 void perf_evsel__init(struct perf_evsel *evsel, 80 struct perf_event_attr *attr, int idx); 81 void perf_evsel__exit(struct perf_evsel *evsel); 82 void perf_evsel__delete(struct perf_evsel *evsel); 83 84 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads); 85 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); 86 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus); 87 void perf_evsel__free_fd(struct perf_evsel *evsel); 88 void perf_evsel__free_id(struct perf_evsel *evsel); 89 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads); 90 91 int perf_evsel__open_per_cpu(struct perf_evsel *evsel, 92 struct cpu_map *cpus, bool group); 93 int perf_evsel__open_per_thread(struct perf_evsel *evsel, 94 struct thread_map *threads, bool group); 95 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, 96 struct thread_map *threads, bool group); 97 98 #define perf_evsel__match(evsel, t, c) \ 99 (evsel->attr.type == PERF_TYPE_##t && \ 100 evsel->attr.config == PERF_COUNT_##c) 101 102 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, 103 int cpu, int thread, bool scale); 104 105 /** 106 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread 107 * 108 * @evsel - event selector to read value 109 * @cpu - CPU of interest 110 * @thread - thread of interest 111 */ 112 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel, 113 int cpu, int thread) 114 { 115 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false); 116 } 117 118 /** 119 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled 120 * 121 * @evsel - event selector to read value 122 * @cpu - CPU of interest 123 * @thread - thread of interest 124 */ 125 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel, 126 int cpu, int thread) 127 { 128 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true); 129 } 130 131 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads, 132 bool scale); 133 134 /** 135 * perf_evsel__read - Read the aggregate results on all CPUs 136 * 137 * @evsel - event selector to read value 138 * @ncpus - Number of cpus affected, from zero 139 * @nthreads - Number of threads affected, from zero 140 */ 141 static inline int perf_evsel__read(struct perf_evsel *evsel, 142 int ncpus, int nthreads) 143 { 144 return __perf_evsel__read(evsel, ncpus, nthreads, false); 145 } 146 147 /** 148 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled 149 * 150 * @evsel - event selector to read value 151 * @ncpus - Number of cpus affected, from zero 152 * @nthreads - Number of threads affected, from zero 153 */ 154 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel, 155 int ncpus, int nthreads) 156 { 157 return __perf_evsel__read(evsel, ncpus, nthreads, true); 158 } 159 160 int __perf_evsel__sample_size(u64 sample_type); 161 162 static inline int perf_evsel__sample_size(struct perf_evsel *evsel) 163 { 164 return __perf_evsel__sample_size(evsel->attr.sample_type); 165 } 166 167 #endif /* __PERF_EVSEL_H */ 168
