2 #define __PERF_EVSEL_H 1
4 #include <linux/list.h>
7 #include <linux/perf_event.h>
8 #include <linux/types.h>
17 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
18 * more than one entry in the evlist.
20 struct perf_sample_id {
21 struct hlist_node node;
23 struct perf_evsel *evsel;
28 /* Holds total ID period value for PERF_SAMPLE_READ processing. */
34 /** struct perf_evsel - event selector
36 * @name - Can be set to retain the original event name passed by the user,
37 * so that when showing results in tools such as 'perf stat', we
38 * show the name used, not some alias.
39 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
40 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
42 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
43 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
44 * is used there is an id sample appended to non-sample events
45 * @priv: And what is in its containing unnamed union are tool specific
48 struct list_head node;
49 struct perf_event_attr attr;
52 struct xyarray *sample_id;
54 struct perf_counts *counts;
55 struct perf_counts *prev_raw_counts;
61 struct event_format *tp_format;
67 struct cgroup_sel *cgrp;
70 struct thread_map *threads;
71 unsigned int sample_size;
82 /* parse modifier helper */
86 unsigned long *per_pkg_mask;
87 struct perf_evsel *leader;
102 static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
107 static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
109 return perf_evsel__cpus(evsel)->nr;
112 void perf_counts_values__scale(struct perf_counts_values *count,
113 bool scale, s8 *pscaled);
115 void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
116 struct perf_counts_values *count);
118 int perf_evsel__object_config(size_t object_size,
119 int (*init)(struct perf_evsel *evsel),
120 void (*fini)(struct perf_evsel *evsel));
122 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
124 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
126 return perf_evsel__new_idx(attr, 0);
129 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
131 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
133 return perf_evsel__newtp_idx(sys, name, 0);
136 struct event_format *event_format__new(const char *sys, const char *name);
138 void perf_evsel__init(struct perf_evsel *evsel,
139 struct perf_event_attr *attr, int idx);
140 void perf_evsel__exit(struct perf_evsel *evsel);
141 void perf_evsel__delete(struct perf_evsel *evsel);
143 void perf_evsel__config(struct perf_evsel *evsel,
144 struct record_opts *opts);
146 int __perf_evsel__sample_size(u64 sample_type);
147 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
149 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
151 #define PERF_EVSEL__MAX_ALIASES 8
153 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
154 [PERF_EVSEL__MAX_ALIASES];
155 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
156 [PERF_EVSEL__MAX_ALIASES];
157 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
158 [PERF_EVSEL__MAX_ALIASES];
159 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
160 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
161 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
162 char *bf, size_t size);
163 const char *perf_evsel__name(struct perf_evsel *evsel);
165 const char *perf_evsel__group_name(struct perf_evsel *evsel);
166 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
168 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
169 void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
171 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
172 enum perf_event_sample_format bit);
173 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
174 enum perf_event_sample_format bit);
176 #define perf_evsel__set_sample_bit(evsel, bit) \
177 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
179 #define perf_evsel__reset_sample_bit(evsel, bit) \
180 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
182 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
183 bool use_sample_identifier);
185 int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
186 int perf_evsel__append_filter(struct perf_evsel *evsel,
187 const char *op, const char *filter);
188 int perf_evsel__apply_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(struct perf_evsel *evsel, int cpu, int thread,
236 struct perf_counts_values *count);
238 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
239 int cpu, int thread, bool scale);
242 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
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(struct perf_evsel *evsel,
251 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
255 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
257 * @evsel - event selector to read value
258 * @cpu - CPU of interest
259 * @thread - thread of interest
261 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
264 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
267 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
268 struct perf_sample *sample);
270 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
272 return list_entry(evsel->node.next, struct perf_evsel, node);
275 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
277 return list_entry(evsel->node.prev, struct perf_evsel, node);
281 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
283 * @evsel - evsel selector to be tested
285 * Return %true if @evsel is a group leader or a stand-alone event
287 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
289 return evsel->leader == evsel;
293 * perf_evsel__is_group_event - Return whether given evsel is a group event
295 * @evsel - evsel selector to be tested
297 * Return %true iff event group view is enabled and @evsel is a actual group
298 * leader which has other members in the group
300 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
302 if (!symbol_conf.event_group)
305 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
309 * perf_evsel__is_function_event - Return whether given evsel is a function
312 * @evsel - evsel selector to be tested
314 * Return %true if event is function trace event
316 static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
318 #define FUNCTION_EVENT "ftrace:function"
320 return evsel->name &&
321 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
323 #undef FUNCTION_EVENT
326 struct perf_attr_details {
333 int perf_evsel__fprintf(struct perf_evsel *evsel,
334 struct perf_attr_details *details, FILE *fp);
336 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
337 char *msg, size_t msgsize);
338 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
339 int err, char *msg, size_t size);
341 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
343 return evsel->idx - evsel->leader->idx;
346 #define for_each_group_member(_evsel, _leader) \
347 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
348 (_evsel) && (_evsel)->leader == (_leader); \
349 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
351 static inline bool has_branch_callstack(struct perf_evsel *evsel)
353 return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
356 typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);
358 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
359 attr__fprintf_f attr__fprintf, void *priv);
361 #endif /* __PERF_EVSEL_H */