1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_EVLIST_H
3 #define __PERF_EVLIST_H 1
5 #include <linux/compiler.h>
6 #include <linux/kernel.h>
7 #include <linux/refcount.h>
8 #include <linux/list.h>
9 #include <api/fd/array.h>
10 #include <internal/evlist.h>
11 #include <internal/evsel.h>
12 #include "events_stats.h"
24 * State machine of bkw_mmap_state:
26 * .________________(forbid)_____________.
28 * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
30 * | |__(forbid)____/ |___(forbid)___/|
32 * \_________________(3)_______________/
34 * NOTREADY : Backward ring buffers are not ready
35 * RUNNING : Backward ring buffers are recording
36 * DATA_PENDING : We are required to collect data from backward ring buffers
37 * EMPTY : We have collected data from backward ring buffers.
39 * (0): Setup backward ring buffer
40 * (1): Pause ring buffers for reading
41 * (2): Read from ring buffers
42 * (3): Resume ring buffers for recording
47 BKW_MMAP_DATA_PENDING,
52 struct perf_evlist core;
57 u64 combined_sample_type;
58 enum bkw_mmap_state bkw_mmap_state;
64 struct mmap *overwrite_mmap;
65 struct evsel *selected;
66 struct events_stats stats;
68 void (*trace_event_sample_raw)(struct evlist *evlist,
69 union perf_event *event,
70 struct perf_sample *sample);
71 u64 first_sample_time;
79 struct evsel_str_handler {
84 struct evlist *evlist__new(void);
85 struct evlist *perf_evlist__new_default(void);
86 struct evlist *perf_evlist__new_dummy(void);
87 void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
88 struct perf_thread_map *threads);
89 void evlist__exit(struct evlist *evlist);
90 void evlist__delete(struct evlist *evlist);
92 void evlist__add(struct evlist *evlist, struct evsel *entry);
93 void evlist__remove(struct evlist *evlist, struct evsel *evsel);
95 int __perf_evlist__add_default(struct evlist *evlist, bool precise);
97 static inline int perf_evlist__add_default(struct evlist *evlist)
99 return __perf_evlist__add_default(evlist, true);
102 int __perf_evlist__add_default_attrs(struct evlist *evlist,
103 struct perf_event_attr *attrs, size_t nr_attrs);
105 #define perf_evlist__add_default_attrs(evlist, array) \
106 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
108 int perf_evlist__add_dummy(struct evlist *evlist);
110 int perf_evlist__add_sb_event(struct evlist **evlist,
111 struct perf_event_attr *attr,
112 perf_evsel__sb_cb_t cb,
114 int perf_evlist__start_sb_thread(struct evlist *evlist,
115 struct target *target);
116 void perf_evlist__stop_sb_thread(struct evlist *evlist);
118 int perf_evlist__add_newtp(struct evlist *evlist,
119 const char *sys, const char *name, void *handler);
121 void __perf_evlist__set_sample_bit(struct evlist *evlist,
122 enum perf_event_sample_format bit);
123 void __perf_evlist__reset_sample_bit(struct evlist *evlist,
124 enum perf_event_sample_format bit);
126 #define perf_evlist__set_sample_bit(evlist, bit) \
127 __perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
129 #define perf_evlist__reset_sample_bit(evlist, bit) \
130 __perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
132 int perf_evlist__set_tp_filter(struct evlist *evlist, const char *filter);
133 int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid);
134 int perf_evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);
137 perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id);
140 perf_evlist__find_tracepoint_by_name(struct evlist *evlist,
143 int evlist__add_pollfd(struct evlist *evlist, int fd);
144 int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask);
146 int evlist__poll(struct evlist *evlist, int timeout);
148 struct evsel *perf_evlist__id2evsel(struct evlist *evlist, u64 id);
149 struct evsel *perf_evlist__id2evsel_strict(struct evlist *evlist,
152 struct perf_sample_id *perf_evlist__id2sid(struct evlist *evlist, u64 id);
154 void perf_evlist__toggle_bkw_mmap(struct evlist *evlist, enum bkw_mmap_state state);
156 void evlist__mmap_consume(struct evlist *evlist, int idx);
158 int evlist__open(struct evlist *evlist);
159 void evlist__close(struct evlist *evlist);
161 struct callchain_param;
163 void perf_evlist__set_id_pos(struct evlist *evlist);
164 bool perf_can_sample_identifier(void);
165 bool perf_can_record_switch_events(void);
166 bool perf_can_record_cpu_wide(void);
167 void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,
168 struct callchain_param *callchain);
169 int record_opts__config(struct record_opts *opts);
171 int perf_evlist__prepare_workload(struct evlist *evlist,
172 struct target *target,
173 const char *argv[], bool pipe_output,
174 void (*exec_error)(int signo, siginfo_t *info,
176 int perf_evlist__start_workload(struct evlist *evlist);
180 int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
181 int perf_evlist__parse_mmap_pages(const struct option *opt,
185 unsigned long perf_event_mlock_kb_in_pages(void);
187 int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
188 unsigned int auxtrace_pages,
189 bool auxtrace_overwrite, int nr_cblocks,
190 int affinity, int flush, int comp_level);
191 int evlist__mmap(struct evlist *evlist, unsigned int pages);
192 void evlist__munmap(struct evlist *evlist);
194 size_t evlist__mmap_size(unsigned long pages);
196 void evlist__disable(struct evlist *evlist);
197 void evlist__enable(struct evlist *evlist);
198 void perf_evlist__toggle_enable(struct evlist *evlist);
200 int perf_evlist__enable_event_idx(struct evlist *evlist,
201 struct evsel *evsel, int idx);
203 void perf_evlist__set_selected(struct evlist *evlist,
204 struct evsel *evsel);
206 int perf_evlist__create_maps(struct evlist *evlist, struct target *target);
207 int perf_evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel);
209 void __perf_evlist__set_leader(struct list_head *list);
210 void perf_evlist__set_leader(struct evlist *evlist);
212 u64 __perf_evlist__combined_sample_type(struct evlist *evlist);
213 u64 perf_evlist__combined_sample_type(struct evlist *evlist);
214 u64 perf_evlist__combined_branch_type(struct evlist *evlist);
215 bool perf_evlist__sample_id_all(struct evlist *evlist);
216 u16 perf_evlist__id_hdr_size(struct evlist *evlist);
218 int perf_evlist__parse_sample(struct evlist *evlist, union perf_event *event,
219 struct perf_sample *sample);
221 int perf_evlist__parse_sample_timestamp(struct evlist *evlist,
222 union perf_event *event,
225 bool perf_evlist__valid_sample_type(struct evlist *evlist);
226 bool perf_evlist__valid_sample_id_all(struct evlist *evlist);
227 bool perf_evlist__valid_read_format(struct evlist *evlist);
229 void perf_evlist__splice_list_tail(struct evlist *evlist,
230 struct list_head *list);
232 static inline bool perf_evlist__empty(struct evlist *evlist)
234 return list_empty(&evlist->core.entries);
237 static inline struct evsel *evlist__first(struct evlist *evlist)
239 struct perf_evsel *evsel = perf_evlist__first(&evlist->core);
241 return container_of(evsel, struct evsel, core);
244 static inline struct evsel *evlist__last(struct evlist *evlist)
246 struct perf_evsel *evsel = perf_evlist__last(&evlist->core);
248 return container_of(evsel, struct evsel, core);
251 int perf_evlist__strerror_open(struct evlist *evlist, int err, char *buf, size_t size);
252 int perf_evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size);
254 bool perf_evlist__can_select_event(struct evlist *evlist, const char *str);
255 void perf_evlist__to_front(struct evlist *evlist,
256 struct evsel *move_evsel);
259 * __evlist__for_each_entry - iterate thru all the evsels
260 * @list: list_head instance to iterate
261 * @evsel: struct evsel iterator
263 #define __evlist__for_each_entry(list, evsel) \
264 list_for_each_entry(evsel, list, core.node)
267 * evlist__for_each_entry - iterate thru all the evsels
268 * @evlist: evlist instance to iterate
269 * @evsel: struct evsel iterator
271 #define evlist__for_each_entry(evlist, evsel) \
272 __evlist__for_each_entry(&(evlist)->core.entries, evsel)
275 * __evlist__for_each_entry_continue - continue iteration thru all the evsels
276 * @list: list_head instance to iterate
277 * @evsel: struct evsel iterator
279 #define __evlist__for_each_entry_continue(list, evsel) \
280 list_for_each_entry_continue(evsel, list, core.node)
283 * evlist__for_each_entry_continue - continue iteration thru all the evsels
284 * @evlist: evlist instance to iterate
285 * @evsel: struct evsel iterator
287 #define evlist__for_each_entry_continue(evlist, evsel) \
288 __evlist__for_each_entry_continue(&(evlist)->core.entries, evsel)
291 * __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
292 * @list: list_head instance to iterate
293 * @evsel: struct evsel iterator
295 #define __evlist__for_each_entry_reverse(list, evsel) \
296 list_for_each_entry_reverse(evsel, list, core.node)
299 * evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
300 * @evlist: evlist instance to iterate
301 * @evsel: struct evsel iterator
303 #define evlist__for_each_entry_reverse(evlist, evsel) \
304 __evlist__for_each_entry_reverse(&(evlist)->core.entries, evsel)
307 * __evlist__for_each_entry_safe - safely iterate thru all the evsels
308 * @list: list_head instance to iterate
309 * @tmp: struct evsel temp iterator
310 * @evsel: struct evsel iterator
312 #define __evlist__for_each_entry_safe(list, tmp, evsel) \
313 list_for_each_entry_safe(evsel, tmp, list, core.node)
316 * evlist__for_each_entry_safe - safely iterate thru all the evsels
317 * @evlist: evlist instance to iterate
318 * @evsel: struct evsel iterator
319 * @tmp: struct evsel temp iterator
321 #define evlist__for_each_entry_safe(evlist, tmp, evsel) \
322 __evlist__for_each_entry_safe(&(evlist)->core.entries, tmp, evsel)
324 void perf_evlist__set_tracking_event(struct evlist *evlist,
325 struct evsel *tracking_evsel);
328 perf_evlist__find_evsel_by_str(struct evlist *evlist, const char *str);
330 struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
331 union perf_event *event);
333 bool perf_evlist__exclude_kernel(struct evlist *evlist);
335 void perf_evlist__force_leader(struct evlist *evlist);
337 struct evsel *perf_evlist__reset_weak_group(struct evlist *evlist,
338 struct evsel *evsel);
339 #endif /* __PERF_EVLIST_H */