2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
7 #include <linux/perf_event.h>
8 #include <linux/types.h>
13 struct perf_counts_values {
26 struct perf_counts_values aggr;
27 struct perf_counts_values cpu[];
33 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
34 * more than one entry in the evlist.
36 struct perf_sample_id {
37 struct hlist_node node;
39 struct perf_evsel *evsel;
41 /* Holds total ID period value for PERF_SAMPLE_READ processing. */
45 /** struct perf_evsel - event selector
47 * @name - Can be set to retain the original event name passed by the user,
48 * so that when showing results in tools such as 'perf stat', we
49 * show the name used, not some alias.
50 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
51 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
53 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
54 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
55 * is used there is an id sample appended to non-sample events
58 struct list_head node;
59 struct perf_event_attr attr;
62 struct xyarray *sample_id;
64 struct perf_counts *counts;
65 struct perf_counts *prev_raw_counts;
71 struct event_format *tp_format;
76 struct cgroup_sel *cgrp;
79 unsigned int sample_size;
88 /* parse modifier helper */
92 struct perf_evsel *leader;
107 int perf_evsel__object_config(size_t object_size,
108 int (*init)(struct perf_evsel *evsel),
109 void (*fini)(struct perf_evsel *evsel));
111 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
113 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
115 return perf_evsel__new_idx(attr, 0);
118 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
120 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
122 return perf_evsel__newtp_idx(sys, name, 0);
125 struct event_format *event_format__new(const char *sys, const char *name);
127 void perf_evsel__init(struct perf_evsel *evsel,
128 struct perf_event_attr *attr, int idx);
129 void perf_evsel__exit(struct perf_evsel *evsel);
130 void perf_evsel__delete(struct perf_evsel *evsel);
132 void perf_evsel__config(struct perf_evsel *evsel,
133 struct record_opts *opts);
135 int __perf_evsel__sample_size(u64 sample_type);
136 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
138 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
140 #define PERF_EVSEL__MAX_ALIASES 8
142 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
143 [PERF_EVSEL__MAX_ALIASES];
144 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
145 [PERF_EVSEL__MAX_ALIASES];
146 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
147 [PERF_EVSEL__MAX_ALIASES];
148 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
149 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
150 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
151 char *bf, size_t size);
152 const char *perf_evsel__name(struct perf_evsel *evsel);
154 const char *perf_evsel__group_name(struct perf_evsel *evsel);
155 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
157 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
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_fd(struct perf_evsel *evsel);
162 void perf_evsel__free_id(struct perf_evsel *evsel);
163 void perf_evsel__free_counts(struct perf_evsel *evsel);
164 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
166 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
167 enum perf_event_sample_format bit);
168 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
169 enum perf_event_sample_format bit);
171 #define perf_evsel__set_sample_bit(evsel, bit) \
172 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
174 #define perf_evsel__reset_sample_bit(evsel, bit) \
175 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
177 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
178 bool use_sample_identifier);
180 int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
182 int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
184 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
185 struct cpu_map *cpus);
186 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
187 struct thread_map *threads);
188 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
189 struct thread_map *threads);
190 void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
194 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
196 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
199 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
200 struct perf_sample *sample,
203 return perf_evsel__rawptr(evsel, sample, name);
208 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
210 #define perf_evsel__match(evsel, t, c) \
211 (evsel->attr.type == PERF_TYPE_##t && \
212 evsel->attr.config == PERF_COUNT_##c)
214 static inline bool perf_evsel__match2(struct perf_evsel *e1,
215 struct perf_evsel *e2)
217 return (e1->attr.type == e2->attr.type) &&
218 (e1->attr.config == e2->attr.config);
221 #define perf_evsel__cmp(a, b) \
224 (a)->attr.type == (b)->attr.type && \
225 (a)->attr.config == (b)->attr.config)
227 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
228 int cpu, int thread, bool scale);
231 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
233 * @evsel - event selector to read value
234 * @cpu - CPU of interest
235 * @thread - thread of interest
237 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
240 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
244 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
246 * @evsel - event selector to read value
247 * @cpu - CPU of interest
248 * @thread - thread of interest
250 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
253 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
256 int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
260 * perf_evsel__read - Read the aggregate results on all CPUs
262 * @evsel - event selector to read value
263 * @ncpus - Number of cpus affected, from zero
264 * @nthreads - Number of threads affected, from zero
266 static inline int perf_evsel__read(struct perf_evsel *evsel,
267 int ncpus, int nthreads)
269 return __perf_evsel__read(evsel, ncpus, nthreads, false);
273 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
275 * @evsel - event selector to read value
276 * @ncpus - Number of cpus affected, from zero
277 * @nthreads - Number of threads affected, from zero
279 static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
280 int ncpus, int nthreads)
282 return __perf_evsel__read(evsel, ncpus, nthreads, true);
285 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
286 struct perf_sample *sample);
288 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
290 return list_entry(evsel->node.next, struct perf_evsel, node);
293 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
295 return list_entry(evsel->node.prev, struct perf_evsel, node);
299 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
301 * @evsel - evsel selector to be tested
303 * Return %true if @evsel is a group leader or a stand-alone event
305 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
307 return evsel->leader == evsel;
311 * perf_evsel__is_group_event - Return whether given evsel is a group event
313 * @evsel - evsel selector to be tested
315 * Return %true iff event group view is enabled and @evsel is a actual group
316 * leader which has other members in the group
318 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
320 if (!symbol_conf.event_group)
323 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
327 * perf_evsel__is_function_event - Return whether given evsel is a function
330 * @evsel - evsel selector to be tested
332 * Return %true if event is function trace event
334 static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
336 #define FUNCTION_EVENT "ftrace:function"
338 return evsel->name &&
339 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
341 #undef FUNCTION_EVENT
344 struct perf_attr_details {
350 int perf_evsel__fprintf(struct perf_evsel *evsel,
351 struct perf_attr_details *details, FILE *fp);
353 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
354 char *msg, size_t msgsize);
355 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
356 int err, char *msg, size_t size);
358 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
360 return evsel->idx - evsel->leader->idx;
363 #define for_each_group_member(_evsel, _leader) \
364 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
365 (_evsel) && (_evsel)->leader == (_leader); \
366 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
368 #endif /* __PERF_EVSEL_H */