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Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001#ifndef __PERF_EVSEL_H
2#define __PERF_EVSEL_H 1
3
4#include <linux/list.h>
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -02005#include <stdbool.h>
Arnaldo Carvalho de Melo07ac0022012-11-13 17:27:28 -03006#include <stddef.h>
David Howellsd2709c72012-11-19 22:21:03 +00007#include <linux/perf_event.h>
Borislav Petkovd944c4e2014-04-25 21:31:02 +02008#include <linux/types.h>
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02009#include "xyarray.h"
Namhyung Kim759ff492013-03-05 14:53:26 +090010#include "symbol.h"
Jiri Olsaa22e99c2015-06-23 00:36:08 +020011#include "cpumap.h"
Jiri Olsa1ac77e12015-06-26 11:29:09 +020012#include "stat.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020013
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020014struct perf_evsel;
15
16/*
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.
19 */
20struct perf_sample_id {
21 struct hlist_node node;
22 u64 id;
23 struct perf_evsel *evsel;
Adrian Hunter3c659ee2014-10-27 15:49:22 +020024 int idx;
25 int cpu;
26 pid_t tid;
Jiri Olsae4caec02012-10-10 18:52:24 +020027
28 /* Holds total ID period value for PERF_SAMPLE_READ processing. */
29 u64 period;
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020030};
31
Arnaldo Carvalho de Melof14d5702014-10-17 12:17:40 -030032struct cgroup_sel;
33
Stephane Eranianf0c55bc2011-02-16 15:10:01 +020034/** struct perf_evsel - event selector
35 *
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.
Adrian Hunter75562572013-08-27 11:23:09 +030039 * @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
41 * struct sample_event
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
Adrian Hunter0db15b12014-10-23 13:45:13 +030045 * @priv: And what is in its containing unnamed union are tool specific
Stephane Eranianf0c55bc2011-02-16 15:10:01 +020046 */
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020047struct perf_evsel {
48 struct list_head node;
49 struct perf_event_attr attr;
50 char *filter;
51 struct xyarray *fd;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030052 struct xyarray *sample_id;
53 u64 *id;
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -020054 struct perf_counts *counts;
Stephane Eranianc7a79c42013-01-29 12:47:43 +010055 struct perf_counts *prev_raw_counts;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020056 int idx;
Robert Richterf4d83432012-08-16 21:10:17 +020057 u32 ids;
Stephane Eranianf0c55bc2011-02-16 15:10:01 +020058 char *name;
Stephane Eranian410136f2013-11-12 17:58:49 +010059 double scale;
60 const char *unit;
Arnaldo Carvalho de Melofcf65bf2012-08-07 09:58:03 -030061 struct event_format *tp_format;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030062 union {
63 void *priv;
64 off_t id_offset;
Adrian Hunter0db15b12014-10-23 13:45:13 +030065 u64 db_id;
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -030066 };
Stephane Eranian023695d2011-02-14 11:20:01 +020067 struct cgroup_sel *cgrp;
Arnaldo Carvalho de Melo744a9712013-11-06 10:17:38 -030068 void *handler;
Yan, Zheng7ae92e72012-09-10 15:53:50 +080069 struct cpu_map *cpus;
Jiri Olsa578e91e2015-06-23 00:36:07 +020070 struct thread_map *threads;
Arnaldo Carvalho de Melobde09462012-08-01 18:53:11 -030071 unsigned int sample_size;
Adrian Hunter75562572013-08-27 11:23:09 +030072 int id_pos;
73 int is_pos;
Arnaldo Carvalho de Melo86066062015-05-15 17:29:56 -030074 bool snapshot;
David Ahern2cee77c2011-05-30 08:55:59 -060075 bool supported;
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -030076 bool needs_swap;
Adrian Hunter6ff1ce72014-07-14 13:02:56 +030077 bool no_aux_samples;
Adrian Hunter2afd2bc2014-07-14 13:02:57 +030078 bool immediate;
Adrian Hunterbf8e8f42014-07-31 09:00:51 +030079 bool system_wide;
Adrian Hunter60b08962014-07-31 09:00:52 +030080 bool tracking;
Matt Fleming044330c2014-11-21 10:31:12 +010081 bool per_pkg;
Jiri Olsaf5b11352012-08-08 12:21:54 +020082 /* parse modifier helper */
83 int exclude_GH;
Namhyung Kim97f63e42013-01-22 18:09:29 +090084 int nr_members;
Jiri Olsa3c176312012-10-10 17:39:03 +020085 int sample_read;
Arnaldo Carvalho de Melo86066062015-05-15 17:29:56 -030086 unsigned long *per_pkg_mask;
Jiri Olsa6a4bb042012-08-08 12:22:36 +020087 struct perf_evsel *leader;
88 char *group_name;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020089};
90
Borislav Petkov88080ce2014-04-14 17:38:39 +020091union u64_swap {
92 u64 val64;
93 u32 val32[2];
94};
95
Arnaldo Carvalho de Melo86bd5e82011-01-03 23:09:46 -020096struct cpu_map;
Arnaldo Carvalho de Melo80b22102014-10-13 10:29:50 -030097struct target;
Arnaldo Carvalho de Melo86bd5e82011-01-03 23:09:46 -020098struct thread_map;
Arnaldo Carvalho de Melo70082dd2011-01-12 17:03:24 -020099struct perf_evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300100struct record_opts;
Arnaldo Carvalho de Melo86bd5e82011-01-03 23:09:46 -0200101
Jiri Olsaa22e99c2015-06-23 00:36:08 +0200102static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
103{
104 return evsel->cpus;
105}
106
107static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
108{
109 return perf_evsel__cpus(evsel)->nr;
110}
111
Jiri Olsa13112bb2014-11-21 10:31:06 +0100112void perf_counts_values__scale(struct perf_counts_values *count,
113 bool scale, s8 *pscaled);
114
Jiri Olsaa6fa0032015-06-26 11:29:11 +0200115void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
Jiri Olsa857a94a2014-11-21 10:31:05 +0100116 struct perf_counts_values *count);
117
Arnaldo Carvalho de Meloce8ccff2014-10-09 15:29:51 -0300118int perf_evsel__object_config(size_t object_size,
119 int (*init)(struct perf_evsel *evsel),
120 void (*fini)(struct perf_evsel *evsel));
121
Arnaldo Carvalho de Meloef503832013-11-07 16:41:19 -0300122struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
123
124static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
125{
126 return perf_evsel__new_idx(attr, 0);
127}
128
129struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
130
131static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
132{
133 return perf_evsel__newtp_idx(sys, name, 0);
134}
Arnaldo Carvalho de Melo201b7332012-09-26 20:24:19 -0300135
136struct event_format *event_format__new(const char *sys, const char *name);
137
Arnaldo Carvalho de Meloef1d1af2011-01-18 21:41:45 -0200138void perf_evsel__init(struct perf_evsel *evsel,
139 struct perf_event_attr *attr, int idx);
140void perf_evsel__exit(struct perf_evsel *evsel);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200141void perf_evsel__delete(struct perf_evsel *evsel);
142
Arnaldo Carvalho de Melo0f82ebc2011-11-08 14:41:57 -0200143void perf_evsel__config(struct perf_evsel *evsel,
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300144 struct record_opts *opts);
Arnaldo Carvalho de Melo0f82ebc2011-11-08 14:41:57 -0200145
Adrian Hunter75562572013-08-27 11:23:09 +0300146int __perf_evsel__sample_size(u64 sample_type);
147void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
148
Arnaldo Carvalho de Melo0b668bc2012-06-11 14:08:07 -0300149bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
150
151#define PERF_EVSEL__MAX_ALIASES 8
152
153extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
154 [PERF_EVSEL__MAX_ALIASES];
155extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
156 [PERF_EVSEL__MAX_ALIASES];
Arnaldo Carvalho de Melo8ad70132012-09-06 13:11:18 -0300157extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
158 [PERF_EVSEL__MAX_ALIASES];
159extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
160extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
Arnaldo Carvalho de Melo0b668bc2012-06-11 14:08:07 -0300161int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
162 char *bf, size_t size);
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300163const char *perf_evsel__name(struct perf_evsel *evsel);
Stephane Eranian410136f2013-11-12 17:58:49 +0100164
Namhyung Kim717e2632013-01-22 18:09:44 +0900165const char *perf_evsel__group_name(struct perf_evsel *evsel);
166int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
Arnaldo Carvalho de Meloc4104312012-05-25 16:38:11 -0300167
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200168int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200169void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200170
Arnaldo Carvalho de Melo7be5ebe2012-12-10 14:53:43 -0300171void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
172 enum perf_event_sample_format bit);
173void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
174 enum perf_event_sample_format bit);
175
176#define perf_evsel__set_sample_bit(evsel, bit) \
177 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
178
179#define perf_evsel__reset_sample_bit(evsel, bit) \
180 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
181
Adrian Hunter75562572013-08-27 11:23:09 +0300182void perf_evsel__set_sample_id(struct perf_evsel *evsel,
183 bool use_sample_identifier);
Arnaldo Carvalho de Melo7a5a5ca2012-12-10 15:21:30 -0300184
Arnaldo Carvalho de Melo12467ae2015-07-03 17:05:50 -0300185int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
Arnaldo Carvalho de Melo64ec84f2015-07-04 12:19:13 -0300186int perf_evsel__append_filter(struct perf_evsel *evsel,
187 const char *op, const char *filter);
Arnaldo Carvalho de Melof47805a2015-07-03 15:53:49 -0300188int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
189 const char *filter);
Andi Kleene2407be2013-08-02 17:41:10 -0700190int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Melo745cefc2012-09-26 15:07:39 -0300191
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -0200192int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200193 struct cpu_map *cpus);
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -0200194int perf_evsel__open_per_thread(struct perf_evsel *evsel,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200195 struct thread_map *threads);
Arnaldo Carvalho de Melof08199d2011-01-11 23:42:19 -0200196int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200197 struct thread_map *threads);
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200198void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
Arnaldo Carvalho de Melo48290602011-01-03 17:48:12 -0200199
Arnaldo Carvalho de Melo5555ded2012-09-11 19:24:23 -0300200struct perf_sample;
201
Arnaldo Carvalho de Melo5d2074e2012-09-26 20:22:00 -0300202void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
Arnaldo Carvalho de Melo5555ded2012-09-11 19:24:23 -0300203 const char *name);
204u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
205 const char *name);
206
Arnaldo Carvalho de Melo5d2074e2012-09-26 20:22:00 -0300207static inline char *perf_evsel__strval(struct perf_evsel *evsel,
208 struct perf_sample *sample,
209 const char *name)
210{
211 return perf_evsel__rawptr(evsel, sample, name);
212}
213
Arnaldo Carvalho de Meloefd2b922012-09-18 11:21:50 -0300214struct format_field;
215
216struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
217
Arnaldo Carvalho de Melodaec78a2011-01-03 16:49:44 -0200218#define perf_evsel__match(evsel, t, c) \
219 (evsel->attr.type == PERF_TYPE_##t && \
220 evsel->attr.config == PERF_COUNT_##c)
221
Jiri Olsa863e4512012-09-06 17:46:55 +0200222static inline bool perf_evsel__match2(struct perf_evsel *e1,
223 struct perf_evsel *e2)
224{
225 return (e1->attr.type == e2->attr.type) &&
226 (e1->attr.config == e2->attr.config);
227}
228
Andi Kleen4cabc3d2013-08-21 16:47:26 -0700229#define perf_evsel__cmp(a, b) \
230 ((a) && \
231 (b) && \
232 (a)->attr.type == (b)->attr.type && \
233 (a)->attr.config == (b)->attr.config)
234
Jiri Olsaf99f47192015-06-26 11:29:18 +0200235int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
236 struct perf_counts_values *count);
237
Arnaldo Carvalho de Meloc52b12e2011-01-03 17:45:52 -0200238int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
239 int cpu, int thread, bool scale);
240
241/**
242 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
243 *
244 * @evsel - event selector to read value
245 * @cpu - CPU of interest
246 * @thread - thread of interest
247 */
248static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
249 int cpu, int thread)
250{
251 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
252}
253
254/**
255 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
256 *
257 * @evsel - event selector to read value
258 * @cpu - CPU of interest
259 * @thread - thread of interest
260 */
261static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
262 int cpu, int thread)
263{
264 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
265}
266
Arnaldo Carvalho de Meloa3f698f2012-08-02 12:23:46 -0300267int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -0300268 struct perf_sample *sample);
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300269
270static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
271{
272 return list_entry(evsel->node.next, struct perf_evsel, node);
273}
Arnaldo Carvalho de Melo07ac0022012-11-13 17:27:28 -0300274
Arnaldo Carvalho de Melod87fcb42013-11-13 15:56:40 -0300275static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
276{
277 return list_entry(evsel->node.prev, struct perf_evsel, node);
278}
279
Namhyung Kim759ff492013-03-05 14:53:26 +0900280/**
281 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
282 *
283 * @evsel - evsel selector to be tested
284 *
285 * Return %true if @evsel is a group leader or a stand-alone event
286 */
Namhyung Kim823254e2012-11-29 15:38:30 +0900287static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
Arnaldo Carvalho de Melo07ac0022012-11-13 17:27:28 -0300288{
Namhyung Kim823254e2012-11-29 15:38:30 +0900289 return evsel->leader == evsel;
Arnaldo Carvalho de Melo07ac0022012-11-13 17:27:28 -0300290}
Arnaldo Carvalho de Melo0698aed2012-12-10 18:17:08 -0300291
Namhyung Kim759ff492013-03-05 14:53:26 +0900292/**
293 * perf_evsel__is_group_event - Return whether given evsel is a group event
294 *
295 * @evsel - evsel selector to be tested
296 *
297 * Return %true iff event group view is enabled and @evsel is a actual group
298 * leader which has other members in the group
299 */
300static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
301{
302 if (!symbol_conf.event_group)
303 return false;
304
305 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
306}
307
Jiri Olsa6bedfab2014-03-02 16:56:40 +0100308/**
309 * perf_evsel__is_function_event - Return whether given evsel is a function
310 * trace event
311 *
312 * @evsel - evsel selector to be tested
313 *
314 * Return %true if event is function trace event
315 */
316static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
317{
318#define FUNCTION_EVENT "ftrace:function"
319
320 return evsel->name &&
321 !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
322
323#undef FUNCTION_EVENT
324}
325
Arnaldo Carvalho de Melo0698aed2012-12-10 18:17:08 -0300326struct perf_attr_details {
327 bool freq;
328 bool verbose;
Arnaldo Carvalho de Meloe35ef3552013-02-06 17:20:02 -0300329 bool event_group;
Yunlong Song9e3b6ec2015-04-02 21:47:10 +0800330 bool force;
Arnaldo Carvalho de Melo0698aed2012-12-10 18:17:08 -0300331};
332
333int perf_evsel__fprintf(struct perf_evsel *evsel,
334 struct perf_attr_details *details, FILE *fp);
Arnaldo Carvalho de Meloc0a54342012-12-13 14:16:30 -0300335
336bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
337 char *msg, size_t msgsize);
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300338int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300339 int err, char *msg, size_t size);
Namhyung Kim97f63e42013-01-22 18:09:29 +0900340
341static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
342{
343 return evsel->idx - evsel->leader->idx;
344}
Namhyung Kim717e2632013-01-22 18:09:44 +0900345
346#define for_each_group_member(_evsel, _leader) \
347for ((_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))
350
Kan Liang384b6052015-01-05 13:23:05 -0500351static inline bool has_branch_callstack(struct perf_evsel *evsel)
352{
353 return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
354}
Peter Zijlstra2c5e8c52015-04-07 11:09:54 +0200355
356typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);
357
358int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
359 attr__fprintf_f attr__fprintf, void *priv);
360
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200361#endif /* __PERF_EVSEL_H */