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)
105 static inline struct hists *evsel__hists(struct perf_evsel *evsel)
107 return &evsel->hists;
115 int perf_evsel__object_config(size_t object_size,
116 int (*init)(struct perf_evsel *evsel),
117 void (*fini)(struct perf_evsel *evsel));
119 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
121 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
123 return perf_evsel__new_idx(attr, 0);
126 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
128 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
130 return perf_evsel__newtp_idx(sys, name, 0);
133 struct event_format *event_format__new(const char *sys, const char *name);
135 void perf_evsel__init(struct perf_evsel *evsel,
136 struct perf_event_attr *attr, int idx);
137 void perf_evsel__exit(struct perf_evsel *evsel);
138 void perf_evsel__delete(struct perf_evsel *evsel);
140 void perf_evsel__config(struct perf_evsel *evsel,
141 struct record_opts *opts);
143 int __perf_evsel__sample_size(u64 sample_type);
144 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
146 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
148 #define PERF_EVSEL__MAX_ALIASES 8
150 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
151 [PERF_EVSEL__MAX_ALIASES];
152 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
153 [PERF_EVSEL__MAX_ALIASES];
154 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
155 [PERF_EVSEL__MAX_ALIASES];
156 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
157 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
158 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
159 char *bf, size_t size);
160 const char *perf_evsel__name(struct perf_evsel *evsel);
162 const char *perf_evsel__group_name(struct perf_evsel *evsel);
163 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
165 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
166 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
167 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
168 void perf_evsel__reset_counts(struct perf_evsel *evsel, int ncpus);
169 void perf_evsel__free_fd(struct perf_evsel *evsel);
170 void perf_evsel__free_id(struct perf_evsel *evsel);
171 void perf_evsel__free_counts(struct perf_evsel *evsel);
172 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
174 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
175 enum perf_event_sample_format bit);
176 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
177 enum perf_event_sample_format bit);
179 #define perf_evsel__set_sample_bit(evsel, bit) \
180 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
182 #define perf_evsel__reset_sample_bit(evsel, bit) \
183 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
185 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
186 bool use_sample_identifier);
188 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
190 int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
192 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
193 struct cpu_map *cpus);
194 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
195 struct thread_map *threads);
196 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
197 struct thread_map *threads);
198 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
202 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
204 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
207 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
208 struct perf_sample *sample,
211 return perf_evsel__rawptr(evsel, sample, name);
216 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
218 #define perf_evsel__match(evsel, t, c) \
219 (evsel->attr.type == PERF_TYPE_##t && \
220 evsel->attr.config == PERF_COUNT_##c)
222 static inline bool perf_evsel__match2(struct perf_evsel *e1,
223 struct perf_evsel *e2)
225 return (e1->attr.type == e2->attr.type) &&
226 (e1->attr.config == e2->attr.config);
229 #define perf_evsel__cmp(a, b) \
232 (a)->attr.type == (b)->attr.type && \
233 (a)->attr.config == (b)->attr.config)
235 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
236 int cpu, int thread, bool scale);
239 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
241 * @evsel - event selector to read value
242 * @cpu - CPU of interest
243 * @thread - thread of interest
245 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
248 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
252 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
254 * @evsel - event selector to read value
255 * @cpu - CPU of interest
256 * @thread - thread of interest
258 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
261 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
264 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
268 * perf_evsel__read - Read the aggregate results on all CPUs
270 * @evsel - event selector to read value
271 * @ncpus - Number of cpus affected, from zero
272 * @nthreads - Number of threads affected, from zero
274 static inline int perf_evsel__read(struct perf_evsel *evsel,
275 int ncpus, int nthreads)
277 return __perf_evsel__read(evsel, ncpus, nthreads, false);
281 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
283 * @evsel - event selector to read value
284 * @ncpus - Number of cpus affected, from zero
285 * @nthreads - Number of threads affected, from zero
287 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
288 int ncpus, int nthreads)
290 return __perf_evsel__read(evsel, ncpus, nthreads, true);
293 void hists__init(struct hists *hists);
295 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
296 struct perf_sample *sample);
298 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
300 return list_entry(evsel->node.next, struct perf_evsel, node);
303 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
305 return list_entry(evsel->node.prev, struct perf_evsel, node);
309 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
311 * @evsel - evsel selector to be tested
313 * Return %true if @evsel is a group leader or a stand-alone event
315 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
317 return evsel->leader == evsel;
321 * perf_evsel__is_group_event - Return whether given evsel is a group event
323 * @evsel - evsel selector to be tested
325 * Return %true iff event group view is enabled and @evsel is a actual group
326 * leader which has other members in the group
328 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
330 if (!symbol_conf.event_group)
333 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
337 * perf_evsel__is_function_event - Return whether given evsel is a function
340 * @evsel - evsel selector to be tested
342 * Return %true if event is function trace event
344 static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
346 #define FUNCTION_EVENT "ftrace:function"
348 return evsel->name &&
349 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
351 #undef FUNCTION_EVENT
354 struct perf_attr_details {
360 int perf_evsel__fprintf(struct perf_evsel *evsel,
361 struct perf_attr_details *details, FILE *fp);
363 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
364 char *msg, size_t msgsize);
365 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
366 int err, char *msg, size_t size);
368 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
370 return evsel->idx - evsel->leader->idx;
373 #define for_each_group_member(_evsel, _leader) \
374 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
375 (_evsel) && (_evsel)->leader == (_leader); \
376 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
378 #endif /* __PERF_EVSEL_H */