1 #ifndef __PERF_EVSEL_H 2 #define __PERF_EVSEL_H 1 3 4 #include <linux/list.h> 5 #include <stdbool.h> 6 #include "../../../include/uapi/linux/perf_event.h" 7 #include "types.h" 8 #include "xyarray.h" 9 #include "cgroup.h" 10 #include "hist.h" 11 12 struct perf_counts_values { 13 union { 14 struct { 15 u64 val; 16 u64 ena; 17 u64 run; 18 }; 19 u64 values[3]; 20 }; 21 }; 22 23 struct perf_counts { 24 s8 scaled; 25 struct perf_counts_values aggr; 26 struct perf_counts_values cpu[]; 27 }; 28 29 struct perf_evsel; 30 31 /* 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. 34 */ 35 struct perf_sample_id { 36 struct hlist_node node; 37 u64 id; 38 struct perf_evsel *evsel; 39 }; 40 41 /** struct perf_evsel - event selector 42 * 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. 46 */ 47 struct perf_evsel { 48 struct list_head node; 49 struct perf_event_attr attr; 50 char *filter; 51 struct xyarray *fd; 52 struct xyarray *sample_id; 53 u64 *id; 54 struct perf_counts *counts; 55 int idx; 56 u32 ids; 57 struct hists hists; 58 char *name; 59 struct event_format *tp_format; 60 union { 61 void *priv; 62 off_t id_offset; 63 }; 64 struct cgroup_sel *cgrp; 65 struct { 66 void *func; 67 void *data; 68 } handler; 69 struct cpu_map *cpus; 70 unsigned int sample_size; 71 bool supported; 72 bool needs_swap; 73 /* parse modifier helper */ 74 int exclude_GH; 75 struct perf_evsel *leader; 76 char *group_name; 77 }; 78 79 struct cpu_map; 80 struct thread_map; 81 struct perf_evlist; 82 struct perf_record_opts; 83 84 struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx); 85 struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx); 86 87 struct event_format *event_format__new(const char *sys, const char *name); 88 89 void perf_evsel__init(struct perf_evsel *evsel, 90 struct perf_event_attr *attr, int idx); 91 void perf_evsel__exit(struct perf_evsel *evsel); 92 void perf_evsel__delete(struct perf_evsel *evsel); 93 94 void perf_evsel__config(struct perf_evsel *evsel, 95 struct perf_record_opts *opts, 96 struct perf_evsel *first); 97 98 bool perf_evsel__is_cache_op_valid(u8 type, u8 op); 99 100 #define PERF_EVSEL__MAX_ALIASES 8 101 102 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX] 103 [PERF_EVSEL__MAX_ALIASES]; 104 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX] 105 [PERF_EVSEL__MAX_ALIASES]; 106 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX] 107 [PERF_EVSEL__MAX_ALIASES]; 108 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX]; 109 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX]; 110 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, 111 char *bf, size_t size); 112 const char *perf_evsel__name(struct perf_evsel *evsel); 113 114 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads); 115 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads); 116 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus); 117 void perf_evsel__free_fd(struct perf_evsel *evsel); 118 void perf_evsel__free_id(struct perf_evsel *evsel); 119 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads); 120 121 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads, 122 const char *filter); 123 124 int perf_evsel__open_per_cpu(struct perf_evsel *evsel, 125 struct cpu_map *cpus); 126 int perf_evsel__open_per_thread(struct perf_evsel *evsel, 127 struct thread_map *threads); 128 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus, 129 struct thread_map *threads); 130 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads); 131 132 struct perf_sample; 133 134 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample, 135 const char *name); 136 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample, 137 const char *name); 138 139 static inline char *perf_evsel__strval(struct perf_evsel *evsel, 140 struct perf_sample *sample, 141 const char *name) 142 { 143 return perf_evsel__rawptr(evsel, sample, name); 144 } 145 146 struct format_field; 147 148 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name); 149 150 #define perf_evsel__match(evsel, t, c) \ 151 (evsel->attr.type == PERF_TYPE_##t && \ 152 evsel->attr.config == PERF_COUNT_##c) 153 154 static inline bool perf_evsel__match2(struct perf_evsel *e1, 155 struct perf_evsel *e2) 156 { 157 return (e1->attr.type == e2->attr.type) && 158 (e1->attr.config == e2->attr.config); 159 } 160 161 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel, 162 int cpu, int thread, bool scale); 163 164 /** 165 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread 166 * 167 * @evsel - event selector to read value 168 * @cpu - CPU of interest 169 * @thread - thread of interest 170 */ 171 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel, 172 int cpu, int thread) 173 { 174 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false); 175 } 176 177 /** 178 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled 179 * 180 * @evsel - event selector to read value 181 * @cpu - CPU of interest 182 * @thread - thread of interest 183 */ 184 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel, 185 int cpu, int thread) 186 { 187 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true); 188 } 189 190 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads, 191 bool scale); 192 193 /** 194 * perf_evsel__read - Read the aggregate results on all CPUs 195 * 196 * @evsel - event selector to read value 197 * @ncpus - Number of cpus affected, from zero 198 * @nthreads - Number of threads affected, from zero 199 */ 200 static inline int perf_evsel__read(struct perf_evsel *evsel, 201 int ncpus, int nthreads) 202 { 203 return __perf_evsel__read(evsel, ncpus, nthreads, false); 204 } 205 206 /** 207 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled 208 * 209 * @evsel - event selector to read value 210 * @ncpus - Number of cpus affected, from zero 211 * @nthreads - Number of threads affected, from zero 212 */ 213 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel, 214 int ncpus, int nthreads) 215 { 216 return __perf_evsel__read(evsel, ncpus, nthreads, true); 217 } 218 219 void hists__init(struct hists *hists); 220 221 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event, 222 struct perf_sample *sample); 223 224 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel) 225 { 226 return list_entry(evsel->node.next, struct perf_evsel, node); 227 } 228 #endif /* __PERF_EVSEL_H */ 229