1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define __PERF_EVSEL_H 1
5 #include <linux/list.h>
8 #include <linux/perf_event.h>
9 #include <linux/types.h>
10 #include <internal/evsel.h>
11 #include <perf/evsel.h>
12 #include "symbol_conf.h"
13 #include <internal/cpumap.h>
18 struct perf_stat_evsel;
21 typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
23 enum perf_tool_event {
25 PERF_TOOL_DURATION_TIME = 1,
28 /** struct evsel - event selector
30 * @evlist - evlist this evsel is in, if it is in one.
31 * @core - libperf evsel object
32 * @name - Can be set to retain the original event name passed by the user,
33 * so that when showing results in tools such as 'perf stat', we
34 * show the name used, not some alias.
35 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
36 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
37 * struct perf_record_sample
38 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
39 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
40 * is used there is an id sample appended to non-sample events
41 * @priv: And what is in its containing unnamed union are tool specific
44 struct perf_evsel core;
45 struct evlist *evlist;
50 unsigned int sample_size;
53 * These fields can be set in the parse-events code or similar.
54 * Please check evsel__clone() to copy them properly so that
55 * they can be released properly.
61 struct tep_event *tp_format;
63 unsigned long max_events;
67 enum perf_tool_event tool_event;
68 /* parse modifier helper */
75 bool use_uncore_alias;
77 bool auto_merge_stats;
81 struct bpf_object *bpf_obj;
85 * metric fields are similar, but needs more care as they can have
86 * references to other metric (evsel).
88 const char * metric_expr;
89 const char * metric_name;
90 struct evsel **metric_events;
91 struct evsel *metric_leader;
94 struct perf_counts *counts;
95 struct perf_counts *prev_raw_counts;
96 unsigned long nr_events_printed;
97 struct perf_stat_evsel *stats;
100 bool uniquified_name;
107 bool ignore_missing_thread;
109 bool cmdline_group_boundary;
113 unsigned long *per_pkg_mask;
114 struct evsel *leader;
115 struct list_head config_terms;
123 * For reporting purposes, an evsel sample can have a callchain
124 * synthesized from AUX area data. Keep track of synthesized sample
125 * types here. Note, the recorded sample_type cannot be changed because
126 * it is needed to continue to parse events.
127 * See also evsel__has_callchain().
129 __u64 synth_sample_type;
132 struct perf_missing_features {
149 extern struct perf_missing_features perf_missing_features;
156 static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
158 return perf_evsel__cpus(&evsel->core);
161 static inline int evsel__nr_cpus(struct evsel *evsel)
163 return evsel__cpus(evsel)->nr;
166 void perf_counts_values__scale(struct perf_counts_values *count,
167 bool scale, s8 *pscaled);
169 void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
170 struct perf_counts_values *count);
172 int evsel__object_config(size_t object_size,
173 int (*init)(struct evsel *evsel),
174 void (*fini)(struct evsel *evsel));
176 struct perf_pmu *evsel__find_pmu(struct evsel *evsel);
177 bool evsel__is_aux_event(struct evsel *evsel);
179 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
181 static inline struct evsel *evsel__new(struct perf_event_attr *attr)
183 return evsel__new_idx(attr, 0);
186 struct evsel *evsel__clone(struct evsel *orig);
187 struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx);
190 * Returns pointer with encoded error via <linux/err.h> interface.
192 static inline struct evsel *evsel__newtp(const char *sys, const char *name)
194 return evsel__newtp_idx(sys, name, 0);
197 struct evsel *evsel__new_cycles(bool precise);
199 struct tep_event *event_format__new(const char *sys, const char *name);
201 void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
202 void evsel__exit(struct evsel *evsel);
203 void evsel__delete(struct evsel *evsel);
205 struct callchain_param;
207 void evsel__config(struct evsel *evsel, struct record_opts *opts,
208 struct callchain_param *callchain);
209 void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
210 struct callchain_param *callchain);
212 int __evsel__sample_size(u64 sample_type);
213 void evsel__calc_id_pos(struct evsel *evsel);
215 bool evsel__is_cache_op_valid(u8 type, u8 op);
217 #define EVSEL__MAX_ALIASES 8
219 extern const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
220 extern const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
221 extern const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
222 extern const char *evsel__hw_names[PERF_COUNT_HW_MAX];
223 extern const char *evsel__sw_names[PERF_COUNT_SW_MAX];
224 int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
225 const char *evsel__name(struct evsel *evsel);
227 const char *evsel__group_name(struct evsel *evsel);
228 int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
230 void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
231 void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
233 #define evsel__set_sample_bit(evsel, bit) \
234 __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
236 #define evsel__reset_sample_bit(evsel, bit) \
237 __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
239 void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
241 int evsel__set_filter(struct evsel *evsel, const char *filter);
242 int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
243 int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
244 int evsel__enable_cpu(struct evsel *evsel, int cpu);
245 int evsel__enable(struct evsel *evsel);
246 int evsel__disable(struct evsel *evsel);
247 int evsel__disable_cpu(struct evsel *evsel, int cpu);
249 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu);
250 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
251 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
252 struct perf_thread_map *threads);
253 void evsel__close(struct evsel *evsel);
257 void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
258 u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
260 static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
262 return evsel__rawptr(evsel, sample, name);
265 struct tep_format_field;
267 u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
269 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
271 #define evsel__match(evsel, t, c) \
272 (evsel->core.attr.type == PERF_TYPE_##t && \
273 evsel->core.attr.config == PERF_COUNT_##c)
275 static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
277 return (e1->core.attr.type == e2->core.attr.type) &&
278 (e1->core.attr.config == e2->core.attr.config);
281 int evsel__read_counter(struct evsel *evsel, int cpu, int thread);
283 int __evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread, bool scale);
286 * evsel__read_on_cpu - Read out the results on a CPU and thread
288 * @evsel - event selector to read value
289 * @cpu - CPU of interest
290 * @thread - thread of interest
292 static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread)
294 return __evsel__read_on_cpu(evsel, cpu, thread, false);
298 * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
300 * @evsel - event selector to read value
301 * @cpu - CPU of interest
302 * @thread - thread of interest
304 static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu, int thread)
306 return __evsel__read_on_cpu(evsel, cpu, thread, true);
309 int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
310 struct perf_sample *sample);
312 int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
315 static inline struct evsel *evsel__next(struct evsel *evsel)
317 return list_entry(evsel->core.node.next, struct evsel, core.node);
320 static inline struct evsel *evsel__prev(struct evsel *evsel)
322 return list_entry(evsel->core.node.prev, struct evsel, core.node);
326 * evsel__is_group_leader - Return whether given evsel is a leader event
328 * @evsel - evsel selector to be tested
330 * Return %true if @evsel is a group leader or a stand-alone event
332 static inline bool evsel__is_group_leader(const struct evsel *evsel)
334 return evsel->leader == evsel;
338 * evsel__is_group_event - Return whether given evsel is a group event
340 * @evsel - evsel selector to be tested
342 * Return %true iff event group view is enabled and @evsel is a actual group
343 * leader which has other members in the group
345 static inline bool evsel__is_group_event(struct evsel *evsel)
347 if (!symbol_conf.event_group)
350 return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
353 bool evsel__is_function_event(struct evsel *evsel);
355 static inline bool evsel__is_bpf_output(struct evsel *evsel)
357 return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
360 static inline bool evsel__is_clock(struct evsel *evsel)
362 return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
363 evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
366 bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize);
367 int evsel__open_strerror(struct evsel *evsel, struct target *target,
368 int err, char *msg, size_t size);
370 static inline int evsel__group_idx(struct evsel *evsel)
372 return evsel->idx - evsel->leader->idx;
375 /* Iterates group WITHOUT the leader. */
376 #define for_each_group_member(_evsel, _leader) \
377 for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
378 (_evsel) && (_evsel)->leader == (_leader); \
379 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
381 /* Iterates group WITH the leader. */
382 #define for_each_group_evsel(_evsel, _leader) \
383 for ((_evsel) = _leader; \
384 (_evsel) && (_evsel)->leader == (_leader); \
385 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
387 static inline bool evsel__has_branch_callstack(const struct evsel *evsel)
389 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
392 static inline bool evsel__has_branch_hw_idx(const struct evsel *evsel)
394 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
397 static inline bool evsel__has_callchain(const struct evsel *evsel)
400 * For reporting purposes, an evsel sample can have a recorded callchain
401 * or a callchain synthesized from AUX area data.
403 return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
404 evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
407 static inline bool evsel__has_br_stack(const struct evsel *evsel)
410 * For reporting purposes, an evsel sample can have a recorded branch
411 * stack or a branch stack synthesized from AUX area data.
413 return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
414 evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
417 static inline bool evsel__is_dummy_event(struct evsel *evsel)
419 return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) &&
420 (evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
423 struct perf_env *evsel__env(struct evsel *evsel);
425 int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
426 #endif /* __PERF_EVSEL_H */