2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
7 #include <linux/perf_event.h>
8 #include <linux/types.h>
12 struct perf_counts_values {
25 struct perf_counts_values aggr;
26 struct perf_counts_values cpu[];
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.
35 struct perf_sample_id {
36 struct hlist_node node;
38 struct perf_evsel *evsel;
40 /* 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;
72 struct event_format *tp_format;
77 struct cgroup_sel *cgrp;
80 unsigned int sample_size;
89 /* parse modifier helper */
93 struct perf_evsel *leader;
108 int perf_evsel__object_config(size_t object_size,
109 int (*init)(struct perf_evsel *evsel),
110 void (*fini)(struct perf_evsel *evsel));
112 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
114 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
116 return perf_evsel__new_idx(attr, 0);
119 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
121 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
123 return perf_evsel__newtp_idx(sys, name, 0);
126 struct event_format *event_format__new(const char *sys, const char *name);
128 void perf_evsel__init(struct perf_evsel *evsel,
129 struct perf_event_attr *attr, int idx);
130 void perf_evsel__exit(struct perf_evsel *evsel);
131 void perf_evsel__delete(struct perf_evsel *evsel);
133 void perf_evsel__config(struct perf_evsel *evsel,
134 struct record_opts *opts);
136 int __perf_evsel__sample_size(u64 sample_type);
137 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
139 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
141 #define PERF_EVSEL__MAX_ALIASES 8
143 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
144 [PERF_EVSEL__MAX_ALIASES];
145 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
146 [PERF_EVSEL__MAX_ALIASES];
147 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
148 [PERF_EVSEL__MAX_ALIASES];
149 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
150 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
151 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
152 char *bf, size_t size);
153 const char *perf_evsel__name(struct perf_evsel *evsel);
155 const char *perf_evsel__group_name(struct perf_evsel *evsel);
156 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
158 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
159 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
160 void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
161 void perf_evsel__free_counts(struct perf_evsel *evsel);
162 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
164 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
165 enum perf_event_sample_format bit);
166 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
167 enum perf_event_sample_format bit);
169 #define perf_evsel__set_sample_bit(evsel, bit) \
170 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
172 #define perf_evsel__reset_sample_bit(evsel, bit) \
173 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
175 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
176 bool use_sample_identifier);
178 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
180 int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
182 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
183 struct cpu_map *cpus);
184 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
185 struct thread_map *threads);
186 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
187 struct thread_map *threads);
188 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
192 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
194 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
197 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
198 struct perf_sample *sample,
201 return perf_evsel__rawptr(evsel, sample, name);
206 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
208 #define perf_evsel__match(evsel, t, c) \
209 (evsel->attr.type == PERF_TYPE_##t && \
210 evsel->attr.config == PERF_COUNT_##c)
212 static inline bool perf_evsel__match2(struct perf_evsel *e1,
213 struct perf_evsel *e2)
215 return (e1->attr.type == e2->attr.type) &&
216 (e1->attr.config == e2->attr.config);
219 #define perf_evsel__cmp(a, b) \
222 (a)->attr.type == (b)->attr.type && \
223 (a)->attr.config == (b)->attr.config)
225 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
226 int cpu, int thread, bool scale);
229 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
231 * @evsel - event selector to read value
232 * @cpu - CPU of interest
233 * @thread - thread of interest
235 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
238 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
242 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
244 * @evsel - event selector to read value
245 * @cpu - CPU of interest
246 * @thread - thread of interest
248 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
251 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
254 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
258 * perf_evsel__read - Read the aggregate results on all CPUs
260 * @evsel - event selector to read value
261 * @ncpus - Number of cpus affected, from zero
262 * @nthreads - Number of threads affected, from zero
264 static inline int perf_evsel__read(struct perf_evsel *evsel,
265 int ncpus, int nthreads)
267 return __perf_evsel__read(evsel, ncpus, nthreads, false);
271 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
273 * @evsel - event selector to read value
274 * @ncpus - Number of cpus affected, from zero
275 * @nthreads - Number of threads affected, from zero
277 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
278 int ncpus, int nthreads)
280 return __perf_evsel__read(evsel, ncpus, nthreads, true);
283 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
284 struct perf_sample *sample);
286 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
288 return list_entry(evsel->node.next, struct perf_evsel, node);
291 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
293 return list_entry(evsel->node.prev, struct perf_evsel, node);
297 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
299 * @evsel - evsel selector to be tested
301 * Return %true if @evsel is a group leader or a stand-alone event
303 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
305 return evsel->leader == evsel;
309 * perf_evsel__is_group_event - Return whether given evsel is a group event
311 * @evsel - evsel selector to be tested
313 * Return %true iff event group view is enabled and @evsel is a actual group
314 * leader which has other members in the group
316 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
318 if (!symbol_conf.event_group)
321 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
325 * perf_evsel__is_function_event - Return whether given evsel is a function
328 * @evsel - evsel selector to be tested
330 * Return %true if event is function trace event
332 static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
334 #define FUNCTION_EVENT "ftrace:function"
336 return evsel->name &&
337 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
339 #undef FUNCTION_EVENT
342 struct perf_attr_details {
348 int perf_evsel__fprintf(struct perf_evsel *evsel,
349 struct perf_attr_details *details, FILE *fp);
351 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
352 char *msg, size_t msgsize);
353 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
354 int err, char *msg, size_t size);
356 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
358 return evsel->idx - evsel->leader->idx;
361 #define for_each_group_member(_evsel, _leader) \
362 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
363 (_evsel) && (_evsel)->leader == (_leader); \
364 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
366 #endif /* __PERF_EVSEL_H */