2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
7 #include <linux/perf_event.h>
8 #include <linux/types.h>
14 struct perf_counts_values {
27 struct perf_counts_values aggr;
28 struct perf_counts_values cpu[];
34 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
35 * more than one entry in the evlist.
37 struct perf_sample_id {
38 struct hlist_node node;
40 struct perf_evsel *evsel;
42 /* Holds total ID period value for PERF_SAMPLE_READ processing. */
46 /** struct perf_evsel - event selector
48 * @name - Can be set to retain the original event name passed by the user,
49 * so that when showing results in tools such as 'perf stat', we
50 * show the name used, not some alias.
51 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
52 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
54 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
55 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
56 * is used there is an id sample appended to non-sample events
59 struct list_head node;
60 struct perf_event_attr attr;
63 struct xyarray *sample_id;
65 struct perf_counts *counts;
66 struct perf_counts *prev_raw_counts;
73 struct event_format *tp_format;
78 struct cgroup_sel *cgrp;
81 unsigned int sample_size;
90 /* parse modifier helper */
94 struct perf_evsel *leader;
103 #define hists_to_evsel(h) container_of(h, struct perf_evsel, hists)
110 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
112 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
114 return perf_evsel__new_idx(attr, 0);
117 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
119 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
121 return perf_evsel__newtp_idx(sys, name, 0);
124 struct event_format *event_format__new(const char *sys, const char *name);
126 void perf_evsel__init(struct perf_evsel *evsel,
127 struct perf_event_attr *attr, int idx);
128 void perf_evsel__exit(struct perf_evsel *evsel);
129 void perf_evsel__delete(struct perf_evsel *evsel);
131 void perf_evsel__config(struct perf_evsel *evsel,
132 struct record_opts *opts);
134 int __perf_evsel__sample_size(u64 sample_type);
135 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
137 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
139 #define PERF_EVSEL__MAX_ALIASES 8
141 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
142 [PERF_EVSEL__MAX_ALIASES];
143 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
144 [PERF_EVSEL__MAX_ALIASES];
145 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
146 [PERF_EVSEL__MAX_ALIASES];
147 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
148 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
149 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
150 char *bf, size_t size);
151 const char *perf_evsel__name(struct perf_evsel *evsel);
153 const char *perf_evsel__group_name(struct perf_evsel *evsel);
154 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
156 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
157 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
158 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
159 void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
160 void perf_evsel__free_fd(struct perf_evsel *evsel);
161 void perf_evsel__free_id(struct perf_evsel *evsel);
162 void perf_evsel__free_counts(struct perf_evsel *evsel);
163 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
165 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
166 enum perf_event_sample_format bit);
167 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
168 enum perf_event_sample_format bit);
170 #define perf_evsel__set_sample_bit(evsel, bit) \
171 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
173 #define perf_evsel__reset_sample_bit(evsel, bit) \
174 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
176 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
177 bool use_sample_identifier);
179 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
181 int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
183 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
184 struct cpu_map *cpus);
185 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
186 struct thread_map *threads);
187 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
188 struct thread_map *threads);
189 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
193 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
195 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
198 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
199 struct perf_sample *sample,
202 return perf_evsel__rawptr(evsel, sample, name);
207 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
209 #define perf_evsel__match(evsel, t, c) \
210 (evsel->attr.type == PERF_TYPE_##t && \
211 evsel->attr.config == PERF_COUNT_##c)
213 static inline bool perf_evsel__match2(struct perf_evsel *e1,
214 struct perf_evsel *e2)
216 return (e1->attr.type == e2->attr.type) &&
217 (e1->attr.config == e2->attr.config);
220 #define perf_evsel__cmp(a, b) \
223 (a)->attr.type == (b)->attr.type && \
224 (a)->attr.config == (b)->attr.config)
226 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
227 int cpu, int thread, bool scale);
230 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
232 * @evsel - event selector to read value
233 * @cpu - CPU of interest
234 * @thread - thread of interest
236 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
239 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
243 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
245 * @evsel - event selector to read value
246 * @cpu - CPU of interest
247 * @thread - thread of interest
249 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
252 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
255 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
259 * perf_evsel__read - Read the aggregate results on all CPUs
261 * @evsel - event selector to read value
262 * @ncpus - Number of cpus affected, from zero
263 * @nthreads - Number of threads affected, from zero
265 static inline int perf_evsel__read(struct perf_evsel *evsel,
266 int ncpus, int nthreads)
268 return __perf_evsel__read(evsel, ncpus, nthreads, false);
272 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
274 * @evsel - event selector to read value
275 * @ncpus - Number of cpus affected, from zero
276 * @nthreads - Number of threads affected, from zero
278 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
279 int ncpus, int nthreads)
281 return __perf_evsel__read(evsel, ncpus, nthreads, true);
284 void hists__init(struct hists *hists);
286 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
287 struct perf_sample *sample);
289 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
291 return list_entry(evsel->node.next, struct perf_evsel, node);
294 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
296 return list_entry(evsel->node.prev, struct perf_evsel, node);
300 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
302 * @evsel - evsel selector to be tested
304 * Return %true if @evsel is a group leader or a stand-alone event
306 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
308 return evsel->leader == evsel;
312 * perf_evsel__is_group_event - Return whether given evsel is a group event
314 * @evsel - evsel selector to be tested
316 * Return %true iff event group view is enabled and @evsel is a actual group
317 * leader which has other members in the group
319 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
321 if (!symbol_conf.event_group)
324 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
328 * perf_evsel__is_function_event - Return whether given evsel is a function
331 * @evsel - evsel selector to be tested
333 * Return %true if event is function trace event
335 static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
337 #define FUNCTION_EVENT "ftrace:function"
339 return evsel->name &&
340 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
342 #undef FUNCTION_EVENT
345 struct perf_attr_details {
351 int perf_evsel__fprintf(struct perf_evsel *evsel,
352 struct perf_attr_details *details, FILE *fp);
354 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
355 char *msg, size_t msgsize);
356 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
357 int err, char *msg, size_t size);
359 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
361 return evsel->idx - evsel->leader->idx;
364 #define for_each_group_member(_evsel, _leader) \
365 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
366 (_evsel) && (_evsel)->leader == (_leader); \
367 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
369 #endif /* __PERF_EVSEL_H */