1 #ifndef __PERF_EVLIST_H
2 #define __PERF_EVLIST_H 1
4 #include <linux/list.h>
5 #include <api/fd/array.h>
18 #define PERF_EVLIST__HLIST_BITS 8
19 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
22 * struct perf_mmap - perf's ring buffer mmap details
24 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
31 char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
35 struct list_head entries;
36 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
43 u64 combined_sample_type;
49 struct fdarray pollfd;
50 struct perf_mmap *mmap;
51 struct thread_map *threads;
53 struct perf_evsel *selected;
54 struct events_stats stats;
57 struct perf_evsel_str_handler {
62 struct perf_evlist *perf_evlist__new(void);
63 struct perf_evlist *perf_evlist__new_default(void);
64 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
65 struct thread_map *threads);
66 void perf_evlist__exit(struct perf_evlist *evlist);
67 void perf_evlist__delete(struct perf_evlist *evlist);
69 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
70 int perf_evlist__add_default(struct perf_evlist *evlist);
71 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
72 struct perf_event_attr *attrs, size_t nr_attrs);
74 #define perf_evlist__add_default_attrs(evlist, array) \
75 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
77 int perf_evlist__add_newtp(struct perf_evlist *evlist,
78 const char *sys, const char *name, void *handler);
80 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
81 int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
82 int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
85 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
88 perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
91 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
92 int cpu, int thread, u64 id);
94 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
95 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
96 int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
98 int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
100 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
102 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
104 union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
106 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
108 int perf_evlist__open(struct perf_evlist *evlist);
109 void perf_evlist__close(struct perf_evlist *evlist);
111 void perf_evlist__set_id_pos(struct perf_evlist *evlist);
112 bool perf_can_sample_identifier(void);
113 void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
114 int record_opts__config(struct record_opts *opts);
116 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
117 struct target *target,
118 const char *argv[], bool pipe_output,
119 void (*exec_error)(int signo, siginfo_t *info,
121 int perf_evlist__start_workload(struct perf_evlist *evlist);
125 int perf_evlist__parse_mmap_pages(const struct option *opt,
129 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
131 void perf_evlist__munmap(struct perf_evlist *evlist);
133 void perf_evlist__disable(struct perf_evlist *evlist);
134 void perf_evlist__enable(struct perf_evlist *evlist);
136 int perf_evlist__disable_event(struct perf_evlist *evlist,
137 struct perf_evsel *evsel);
138 int perf_evlist__enable_event(struct perf_evlist *evlist,
139 struct perf_evsel *evsel);
140 int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
141 struct perf_evsel *evsel, int idx);
143 void perf_evlist__set_selected(struct perf_evlist *evlist,
144 struct perf_evsel *evsel);
146 static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
147 struct cpu_map *cpus,
148 struct thread_map *threads)
151 evlist->threads = threads;
154 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
155 int perf_evlist__apply_filters(struct perf_evlist *evlist);
157 void __perf_evlist__set_leader(struct list_head *list);
158 void perf_evlist__set_leader(struct perf_evlist *evlist);
160 u64 perf_evlist__read_format(struct perf_evlist *evlist);
161 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
162 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
163 bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
164 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
166 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
167 struct perf_sample *sample);
169 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
170 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
171 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
173 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
174 struct list_head *list,
177 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
179 return list_entry(evlist->entries.next, struct perf_evsel, node);
182 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
184 return list_entry(evlist->entries.prev, struct perf_evsel, node);
187 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
189 int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
190 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
192 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
194 struct perf_event_mmap_page *pc = mm->base;
195 int head = ACCESS_ONCE(pc->data_head);
200 static inline void perf_mmap__write_tail(struct perf_mmap *md,
203 struct perf_event_mmap_page *pc = md->base;
206 * ensure all reads are done before we write the tail out.
209 pc->data_tail = tail;
212 bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
213 void perf_evlist__to_front(struct perf_evlist *evlist,
214 struct perf_evsel *move_evsel);
217 * __evlist__for_each - iterate thru all the evsels
218 * @list: list_head instance to iterate
219 * @evsel: struct evsel iterator
221 #define __evlist__for_each(list, evsel) \
222 list_for_each_entry(evsel, list, node)
225 * evlist__for_each - iterate thru all the evsels
226 * @evlist: evlist instance to iterate
227 * @evsel: struct evsel iterator
229 #define evlist__for_each(evlist, evsel) \
230 __evlist__for_each(&(evlist)->entries, evsel)
233 * __evlist__for_each_continue - continue iteration thru all the evsels
234 * @list: list_head instance to iterate
235 * @evsel: struct evsel iterator
237 #define __evlist__for_each_continue(list, evsel) \
238 list_for_each_entry_continue(evsel, list, node)
241 * evlist__for_each_continue - continue iteration thru all the evsels
242 * @evlist: evlist instance to iterate
243 * @evsel: struct evsel iterator
245 #define evlist__for_each_continue(evlist, evsel) \
246 __evlist__for_each_continue(&(evlist)->entries, evsel)
249 * __evlist__for_each_reverse - iterate thru all the evsels in reverse order
250 * @list: list_head instance to iterate
251 * @evsel: struct evsel iterator
253 #define __evlist__for_each_reverse(list, evsel) \
254 list_for_each_entry_reverse(evsel, list, node)
257 * evlist__for_each_reverse - iterate thru all the evsels in reverse order
258 * @evlist: evlist instance to iterate
259 * @evsel: struct evsel iterator
261 #define evlist__for_each_reverse(evlist, evsel) \
262 __evlist__for_each_reverse(&(evlist)->entries, evsel)
265 * __evlist__for_each_safe - safely iterate thru all the evsels
266 * @list: list_head instance to iterate
267 * @tmp: struct evsel temp iterator
268 * @evsel: struct evsel iterator
270 #define __evlist__for_each_safe(list, tmp, evsel) \
271 list_for_each_entry_safe(evsel, tmp, list, node)
274 * evlist__for_each_safe - safely iterate thru all the evsels
275 * @evlist: evlist instance to iterate
276 * @evsel: struct evsel iterator
277 * @tmp: struct evsel temp iterator
279 #define evlist__for_each_safe(evlist, tmp, evsel) \
280 __evlist__for_each_safe(&(evlist)->entries, tmp, evsel)
282 void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
283 struct perf_evsel *tracking_evsel);
285 #endif /* __PERF_EVLIST_H */