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;
20 struct bpf_counter_ops;
24 typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
26 enum perf_tool_event {
28 PERF_TOOL_DURATION_TIME = 1,
31 /** struct evsel - event selector
33 * @evlist - evlist this evsel is in, if it is in one.
34 * @core - libperf evsel object
35 * @name - Can be set to retain the original event name passed by the user,
36 * so that when showing results in tools such as 'perf stat', we
37 * show the name used, not some alias.
38 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
39 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
40 * struct perf_record_sample
41 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
42 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
43 * is used there is an id sample appended to non-sample events
44 * @priv: And what is in its containing unnamed union are tool specific
47 struct perf_evsel core;
48 struct evlist *evlist;
53 unsigned int sample_size;
56 * These fields can be set in the parse-events code or similar.
57 * Please check evsel__clone() to copy them properly so that
58 * they can be released properly.
64 struct tep_event *tp_format;
66 unsigned long max_events;
70 enum perf_tool_event tool_event;
71 /* parse modifier helper */
78 bool use_uncore_alias;
80 bool auto_merge_stats;
84 struct bpf_object *bpf_obj;
88 * metric fields are similar, but needs more care as they can have
89 * references to other metric (evsel).
91 const char * metric_expr;
92 const char * metric_name;
93 struct evsel **metric_events;
94 struct evsel *metric_leader;
97 struct perf_counts *counts;
98 struct perf_counts *prev_raw_counts;
99 unsigned long nr_events_printed;
100 struct perf_stat_evsel *stats;
103 bool uniquified_name;
110 bool ignore_missing_thread;
112 bool cmdline_group_boundary;
116 struct hashmap *per_pkg_mask;
117 struct evsel *leader;
118 struct list_head config_terms;
126 * For reporting purposes, an evsel sample can have a callchain
127 * synthesized from AUX area data. Keep track of synthesized sample
128 * types here. Note, the recorded sample_type cannot be changed because
129 * it is needed to continue to parse events.
130 * See also evsel__has_callchain().
132 __u64 synth_sample_type;
133 struct list_head bpf_counter_list;
134 struct bpf_counter_ops *bpf_counter_ops;
137 struct perf_missing_features {
157 extern struct perf_missing_features perf_missing_features;
164 static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
166 return perf_evsel__cpus(&evsel->core);
169 static inline int evsel__nr_cpus(struct evsel *evsel)
171 return evsel__cpus(evsel)->nr;
174 void perf_counts_values__scale(struct perf_counts_values *count,
175 bool scale, s8 *pscaled);
177 void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
178 struct perf_counts_values *count);
180 int evsel__object_config(size_t object_size,
181 int (*init)(struct evsel *evsel),
182 void (*fini)(struct evsel *evsel));
184 struct perf_pmu *evsel__find_pmu(struct evsel *evsel);
185 bool evsel__is_aux_event(struct evsel *evsel);
187 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
189 static inline struct evsel *evsel__new(struct perf_event_attr *attr)
191 return evsel__new_idx(attr, 0);
194 struct evsel *evsel__clone(struct evsel *orig);
195 struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx);
198 * Returns pointer with encoded error via <linux/err.h> interface.
200 static inline struct evsel *evsel__newtp(const char *sys, const char *name)
202 return evsel__newtp_idx(sys, name, 0);
205 struct evsel *evsel__new_cycles(bool precise);
207 struct tep_event *event_format__new(const char *sys, const char *name);
209 void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
210 void evsel__exit(struct evsel *evsel);
211 void evsel__delete(struct evsel *evsel);
213 struct callchain_param;
215 void evsel__config(struct evsel *evsel, struct record_opts *opts,
216 struct callchain_param *callchain);
217 void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
218 struct callchain_param *callchain);
220 int __evsel__sample_size(u64 sample_type);
221 void evsel__calc_id_pos(struct evsel *evsel);
223 bool evsel__is_cache_op_valid(u8 type, u8 op);
225 #define EVSEL__MAX_ALIASES 8
227 extern const char *evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
228 extern const char *evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
229 extern const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
230 extern const char *evsel__hw_names[PERF_COUNT_HW_MAX];
231 extern const char *evsel__sw_names[PERF_COUNT_SW_MAX];
232 int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
233 const char *evsel__name(struct evsel *evsel);
235 const char *evsel__group_name(struct evsel *evsel);
236 int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
238 void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
239 void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
241 #define evsel__set_sample_bit(evsel, bit) \
242 __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
244 #define evsel__reset_sample_bit(evsel, bit) \
245 __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
247 void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
249 void arch_evsel__set_sample_weight(struct evsel *evsel);
251 int evsel__set_filter(struct evsel *evsel, const char *filter);
252 int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
253 int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
254 int evsel__enable_cpu(struct evsel *evsel, int cpu);
255 int evsel__enable(struct evsel *evsel);
256 int evsel__disable(struct evsel *evsel);
257 int evsel__disable_cpu(struct evsel *evsel, int cpu);
259 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu);
260 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
261 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
262 struct perf_thread_map *threads);
263 void evsel__close(struct evsel *evsel);
267 void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
268 u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
270 static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
272 return evsel__rawptr(evsel, sample, name);
275 struct tep_format_field;
277 u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
279 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
281 #define evsel__match(evsel, t, c) \
282 (evsel->core.attr.type == PERF_TYPE_##t && \
283 evsel->core.attr.config == PERF_COUNT_##c)
285 static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
287 return (e1->core.attr.type == e2->core.attr.type) &&
288 (e1->core.attr.config == e2->core.attr.config);
291 int evsel__read_counter(struct evsel *evsel, int cpu, int thread);
293 int __evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread, bool scale);
296 * evsel__read_on_cpu - Read out the results on a CPU and thread
298 * @evsel - event selector to read value
299 * @cpu - CPU of interest
300 * @thread - thread of interest
302 static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread)
304 return __evsel__read_on_cpu(evsel, cpu, thread, false);
308 * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
310 * @evsel - event selector to read value
311 * @cpu - CPU of interest
312 * @thread - thread of interest
314 static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu, int thread)
316 return __evsel__read_on_cpu(evsel, cpu, thread, true);
319 int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
320 struct perf_sample *sample);
322 int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
325 static inline struct evsel *evsel__next(struct evsel *evsel)
327 return list_entry(evsel->core.node.next, struct evsel, core.node);
330 static inline struct evsel *evsel__prev(struct evsel *evsel)
332 return list_entry(evsel->core.node.prev, struct evsel, core.node);
336 * evsel__is_group_leader - Return whether given evsel is a leader event
338 * @evsel - evsel selector to be tested
340 * Return %true if @evsel is a group leader or a stand-alone event
342 static inline bool evsel__is_group_leader(const struct evsel *evsel)
344 return evsel->leader == evsel;
348 * evsel__is_group_event - Return whether given evsel is a group event
350 * @evsel - evsel selector to be tested
352 * Return %true iff event group view is enabled and @evsel is a actual group
353 * leader which has other members in the group
355 static inline bool evsel__is_group_event(struct evsel *evsel)
357 if (!symbol_conf.event_group)
360 return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
363 bool evsel__is_function_event(struct evsel *evsel);
365 static inline bool evsel__is_bpf_output(struct evsel *evsel)
367 return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
370 static inline bool evsel__is_clock(struct evsel *evsel)
372 return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
373 evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
376 bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize);
377 int evsel__open_strerror(struct evsel *evsel, struct target *target,
378 int err, char *msg, size_t size);
380 static inline int evsel__group_idx(struct evsel *evsel)
382 return evsel->idx - evsel->leader->idx;
385 /* Iterates group WITHOUT the leader. */
386 #define for_each_group_member(_evsel, _leader) \
387 for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
388 (_evsel) && (_evsel)->leader == (_leader); \
389 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
391 /* Iterates group WITH the leader. */
392 #define for_each_group_evsel(_evsel, _leader) \
393 for ((_evsel) = _leader; \
394 (_evsel) && (_evsel)->leader == (_leader); \
395 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
397 static inline bool evsel__has_branch_callstack(const struct evsel *evsel)
399 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
402 static inline bool evsel__has_branch_hw_idx(const struct evsel *evsel)
404 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
407 static inline bool evsel__has_callchain(const struct evsel *evsel)
410 * For reporting purposes, an evsel sample can have a recorded callchain
411 * or a callchain synthesized from AUX area data.
413 return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
414 evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
417 static inline bool evsel__has_br_stack(const struct evsel *evsel)
420 * For reporting purposes, an evsel sample can have a recorded branch
421 * stack or a branch stack synthesized from AUX area data.
423 return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
424 evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
427 static inline bool evsel__is_dummy_event(struct evsel *evsel)
429 return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) &&
430 (evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
433 struct perf_env *evsel__env(struct evsel *evsel);
435 int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
437 void evsel__zero_per_pkg(struct evsel *evsel);
438 #endif /* __PERF_EVSEL_H */