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;
47 struct perf_counts *counts;
48 struct perf_counts *prev_raw_counts;
50 unsigned long max_events;
51 unsigned long nr_events_printed;
55 struct tep_event *tp_format;
57 struct perf_stat_evsel *stats;
62 unsigned int sample_size;
65 enum perf_tool_event tool_event;
76 bool ignore_missing_thread;
78 bool use_uncore_alias;
79 /* parse modifier helper */
82 unsigned long *per_pkg_mask;
85 bool cmdline_group_boundary;
86 struct list_head config_terms;
87 struct bpf_object *bpf_obj;
90 bool auto_merge_stats;
92 const char * metric_expr;
93 const char * metric_name;
94 struct evsel **metric_events;
95 struct evsel *metric_leader;
102 const char *pmu_name;
108 * For reporting purposes, an evsel sample can have a callchain
109 * synthesized from AUX area data. Keep track of synthesized sample
110 * types here. Note, the recorded sample_type cannot be changed because
111 * it is needed to continue to parse events.
112 * See also evsel__has_callchain().
114 __u64 synth_sample_type;
117 struct perf_missing_features {
134 extern struct perf_missing_features perf_missing_features;
141 static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
143 return perf_evsel__cpus(&evsel->core);
146 static inline int evsel__nr_cpus(struct evsel *evsel)
148 return evsel__cpus(evsel)->nr;
151 void perf_counts_values__scale(struct perf_counts_values *count,
152 bool scale, s8 *pscaled);
154 void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
155 struct perf_counts_values *count);
157 int perf_evsel__object_config(size_t object_size,
158 int (*init)(struct evsel *evsel),
159 void (*fini)(struct evsel *evsel));
161 struct perf_pmu *evsel__find_pmu(struct evsel *evsel);
162 bool evsel__is_aux_event(struct evsel *evsel);
164 struct evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
166 static inline struct evsel *evsel__new(struct perf_event_attr *attr)
168 return perf_evsel__new_idx(attr, 0);
171 struct evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
174 * Returns pointer with encoded error via <linux/err.h> interface.
176 static inline struct evsel *perf_evsel__newtp(const char *sys, const char *name)
178 return perf_evsel__newtp_idx(sys, name, 0);
181 struct evsel *perf_evsel__new_cycles(bool precise);
183 struct tep_event *event_format__new(const char *sys, const char *name);
185 void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
186 void evsel__exit(struct evsel *evsel);
187 void evsel__delete(struct evsel *evsel);
189 struct callchain_param;
191 void evsel__config(struct evsel *evsel, struct record_opts *opts,
192 struct callchain_param *callchain);
193 void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
194 struct callchain_param *callchain);
196 int __evsel__sample_size(u64 sample_type);
197 void evsel__calc_id_pos(struct evsel *evsel);
199 bool evsel__is_cache_op_valid(u8 type, u8 op);
201 #define PERF_EVSEL__MAX_ALIASES 8
203 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
204 [PERF_EVSEL__MAX_ALIASES];
205 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
206 [PERF_EVSEL__MAX_ALIASES];
207 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
208 [PERF_EVSEL__MAX_ALIASES];
209 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
210 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
211 int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
212 const char *evsel__name(struct evsel *evsel);
214 const char *evsel__group_name(struct evsel *evsel);
215 int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
217 void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
218 void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
220 #define evsel__set_sample_bit(evsel, bit) \
221 __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
223 #define evsel__reset_sample_bit(evsel, bit) \
224 __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
226 void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
228 int evsel__set_filter(struct evsel *evsel, const char *filter);
229 int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
230 int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
231 int evsel__enable_cpu(struct evsel *evsel, int cpu);
232 int evsel__enable(struct evsel *evsel);
233 int evsel__disable(struct evsel *evsel);
234 int evsel__disable_cpu(struct evsel *evsel, int cpu);
236 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu);
237 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
238 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
239 struct perf_thread_map *threads);
240 void evsel__close(struct evsel *evsel);
244 void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
245 u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
247 static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
249 return evsel__rawptr(evsel, sample, name);
252 struct tep_format_field;
254 u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
256 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
258 #define evsel__match(evsel, t, c) \
259 (evsel->core.attr.type == PERF_TYPE_##t && \
260 evsel->core.attr.config == PERF_COUNT_##c)
262 static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
264 return (e1->core.attr.type == e2->core.attr.type) &&
265 (e1->core.attr.config == e2->core.attr.config);
268 int evsel__read_counter(struct evsel *evsel, int cpu, int thread);
270 int __evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread, bool scale);
273 * evsel__read_on_cpu - Read out the results on a CPU and thread
275 * @evsel - event selector to read value
276 * @cpu - CPU of interest
277 * @thread - thread of interest
279 static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu, int thread)
281 return __evsel__read_on_cpu(evsel, cpu, thread, false);
285 * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
287 * @evsel - event selector to read value
288 * @cpu - CPU of interest
289 * @thread - thread of interest
291 static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu, int thread)
293 return __evsel__read_on_cpu(evsel, cpu, thread, true);
296 int perf_evsel__parse_sample(struct evsel *evsel, union perf_event *event,
297 struct perf_sample *sample);
299 int perf_evsel__parse_sample_timestamp(struct evsel *evsel,
300 union perf_event *event,
303 static inline struct evsel *perf_evsel__next(struct evsel *evsel)
305 return list_entry(evsel->core.node.next, struct evsel, core.node);
308 static inline struct evsel *perf_evsel__prev(struct evsel *evsel)
310 return list_entry(evsel->core.node.prev, struct evsel, core.node);
314 * evsel__is_group_leader - Return whether given evsel is a leader event
316 * @evsel - evsel selector to be tested
318 * Return %true if @evsel is a group leader or a stand-alone event
320 static inline bool evsel__is_group_leader(const struct evsel *evsel)
322 return evsel->leader == evsel;
326 * evsel__is_group_event - Return whether given evsel is a group event
328 * @evsel - evsel selector to be tested
330 * Return %true iff event group view is enabled and @evsel is a actual group
331 * leader which has other members in the group
333 static inline bool evsel__is_group_event(struct evsel *evsel)
335 if (!symbol_conf.event_group)
338 return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
341 bool evsel__is_function_event(struct evsel *evsel);
343 static inline bool evsel__is_bpf_output(struct evsel *evsel)
345 return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
348 static inline bool evsel__is_clock(struct evsel *evsel)
350 return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
351 evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
354 bool perf_evsel__fallback(struct evsel *evsel, int err,
355 char *msg, size_t msgsize);
356 int perf_evsel__open_strerror(struct evsel *evsel, struct target *target,
357 int err, char *msg, size_t size);
359 static inline int perf_evsel__group_idx(struct evsel *evsel)
361 return evsel->idx - evsel->leader->idx;
364 /* Iterates group WITHOUT the leader. */
365 #define for_each_group_member(_evsel, _leader) \
366 for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
367 (_evsel) && (_evsel)->leader == (_leader); \
368 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
370 /* Iterates group WITH the leader. */
371 #define for_each_group_evsel(_evsel, _leader) \
372 for ((_evsel) = _leader; \
373 (_evsel) && (_evsel)->leader == (_leader); \
374 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
376 static inline bool perf_evsel__has_branch_callstack(const struct evsel *evsel)
378 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
381 static inline bool perf_evsel__has_branch_hw_idx(const struct evsel *evsel)
383 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
386 static inline bool evsel__has_callchain(const struct evsel *evsel)
389 * For reporting purposes, an evsel sample can have a recorded callchain
390 * or a callchain synthesized from AUX area data.
392 return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
393 evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
396 static inline bool evsel__has_br_stack(const struct evsel *evsel)
399 * For reporting purposes, an evsel sample can have a recorded branch
400 * stack or a branch stack synthesized from AUX area data.
402 return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
403 evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
406 struct perf_env *perf_evsel__env(struct evsel *evsel);
408 int perf_evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
409 #endif /* __PERF_EVSEL_H */