1 #ifndef __PERF_EVLIST_H
2 #define __PERF_EVLIST_H 1
4 #include <linux/atomic.h>
5 #include <linux/list.h>
6 #include <api/fd/array.h>
20 #define PERF_EVLIST__HLIST_BITS 8
21 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
24 * struct perf_mmap - perf's ring buffer mmap details
26 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
33 struct auxtrace_mmap auxtrace_mmap;
34 char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
38 struct list_head entries;
39 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
48 u64 combined_sample_type;
53 struct fdarray pollfd;
54 struct perf_mmap *mmap;
55 struct thread_map *threads;
57 struct perf_evsel *selected;
58 struct events_stats stats;
62 struct perf_evsel_str_handler {
67 struct perf_evlist *perf_evlist__new(void);
68 struct perf_evlist *perf_evlist__new_default(void);
69 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
70 struct thread_map *threads);
71 void perf_evlist__exit(struct perf_evlist *evlist);
72 void perf_evlist__delete(struct perf_evlist *evlist);
74 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
75 int perf_evlist__add_default(struct perf_evlist *evlist);
76 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
77 struct perf_event_attr *attrs, size_t nr_attrs);
79 #define perf_evlist__add_default_attrs(evlist, array) \
80 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
82 int perf_evlist__add_newtp(struct perf_evlist *evlist,
83 const char *sys, const char *name, void *handler);
85 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
86 int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
87 int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
90 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
93 perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
96 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
97 int cpu, int thread, u64 id);
99 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
100 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
101 int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
103 int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
105 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
107 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
109 union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
111 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
113 int perf_evlist__open(struct perf_evlist *evlist);
114 void perf_evlist__close(struct perf_evlist *evlist);
116 void perf_evlist__set_id_pos(struct perf_evlist *evlist);
117 bool perf_can_sample_identifier(void);
118 bool perf_can_record_switch_events(void);
119 bool perf_can_record_cpu_wide(void);
120 void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
121 int record_opts__config(struct record_opts *opts);
123 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
124 struct target *target,
125 const char *argv[], bool pipe_output,
126 void (*exec_error)(int signo, siginfo_t *info,
128 int perf_evlist__start_workload(struct perf_evlist *evlist);
132 int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
133 int perf_evlist__parse_mmap_pages(const struct option *opt,
137 int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
138 bool overwrite, unsigned int auxtrace_pages,
139 bool auxtrace_overwrite);
140 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
142 void perf_evlist__munmap(struct perf_evlist *evlist);
144 void perf_evlist__disable(struct perf_evlist *evlist);
145 void perf_evlist__enable(struct perf_evlist *evlist);
146 void perf_evlist__toggle_enable(struct perf_evlist *evlist);
148 int perf_evlist__disable_event(struct perf_evlist *evlist,
149 struct perf_evsel *evsel);
150 int perf_evlist__enable_event(struct perf_evlist *evlist,
151 struct perf_evsel *evsel);
152 int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
153 struct perf_evsel *evsel, int idx);
155 void perf_evlist__set_selected(struct perf_evlist *evlist,
156 struct perf_evsel *evsel);
158 int perf_evlist__set_maps(struct perf_evlist *evlist,
159 struct cpu_map *cpus,
160 struct thread_map *threads);
161 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
162 int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
164 void __perf_evlist__set_leader(struct list_head *list);
165 void perf_evlist__set_leader(struct perf_evlist *evlist);
167 u64 perf_evlist__read_format(struct perf_evlist *evlist);
168 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
169 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
170 u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
171 bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
172 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
174 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
175 struct perf_sample *sample);
177 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
178 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
179 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
181 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
182 struct list_head *list,
185 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
187 return list_entry(evlist->entries.next, struct perf_evsel, node);
190 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
192 return list_entry(evlist->entries.prev, struct perf_evsel, node);
195 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
197 int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
198 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
200 static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
202 struct perf_event_mmap_page *pc = mm->base;
203 u64 head = ACCESS_ONCE(pc->data_head);
208 static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
210 struct perf_event_mmap_page *pc = md->base;
213 * ensure all reads are done before we write the tail out.
216 pc->data_tail = tail;
219 bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
220 void perf_evlist__to_front(struct perf_evlist *evlist,
221 struct perf_evsel *move_evsel);
224 * __evlist__for_each - iterate thru all the evsels
225 * @list: list_head instance to iterate
226 * @evsel: struct evsel iterator
228 #define __evlist__for_each(list, evsel) \
229 list_for_each_entry(evsel, list, node)
232 * evlist__for_each - iterate thru all the evsels
233 * @evlist: evlist instance to iterate
234 * @evsel: struct evsel iterator
236 #define evlist__for_each(evlist, evsel) \
237 __evlist__for_each(&(evlist)->entries, evsel)
240 * __evlist__for_each_continue - continue iteration thru all the evsels
241 * @list: list_head instance to iterate
242 * @evsel: struct evsel iterator
244 #define __evlist__for_each_continue(list, evsel) \
245 list_for_each_entry_continue(evsel, list, node)
248 * evlist__for_each_continue - continue iteration thru all the evsels
249 * @evlist: evlist instance to iterate
250 * @evsel: struct evsel iterator
252 #define evlist__for_each_continue(evlist, evsel) \
253 __evlist__for_each_continue(&(evlist)->entries, evsel)
256 * __evlist__for_each_reverse - iterate thru all the evsels in reverse order
257 * @list: list_head instance to iterate
258 * @evsel: struct evsel iterator
260 #define __evlist__for_each_reverse(list, evsel) \
261 list_for_each_entry_reverse(evsel, list, node)
264 * evlist__for_each_reverse - iterate thru all the evsels in reverse order
265 * @evlist: evlist instance to iterate
266 * @evsel: struct evsel iterator
268 #define evlist__for_each_reverse(evlist, evsel) \
269 __evlist__for_each_reverse(&(evlist)->entries, evsel)
272 * __evlist__for_each_safe - safely iterate thru all the evsels
273 * @list: list_head instance to iterate
274 * @tmp: struct evsel temp iterator
275 * @evsel: struct evsel iterator
277 #define __evlist__for_each_safe(list, tmp, evsel) \
278 list_for_each_entry_safe(evsel, tmp, list, node)
281 * evlist__for_each_safe - safely iterate thru all the evsels
282 * @evlist: evlist instance to iterate
283 * @evsel: struct evsel iterator
284 * @tmp: struct evsel temp iterator
286 #define evlist__for_each_safe(evlist, tmp, evsel) \
287 __evlist__for_each_safe(&(evlist)->entries, tmp, evsel)
289 void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
290 struct perf_evsel *tracking_evsel);
291 #endif /* __PERF_EVLIST_H */