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
, int ncpus
, int nthreads
,
187 int perf_evsel__enable(struct perf_evsel
*evsel
, int ncpus
, int nthreads
);
189 int perf_evsel__open_per_cpu(struct perf_evsel
*evsel
,
190 struct cpu_map
*cpus
);
191 int perf_evsel__open_per_thread(struct perf_evsel
*evsel
,
192 struct thread_map
*threads
);
193 int perf_evsel__open(struct perf_evsel
*evsel
, struct cpu_map
*cpus
,
194 struct thread_map
*threads
);
195 void perf_evsel__close(struct perf_evsel
*evsel
, int ncpus
, int nthreads
);
199 void *perf_evsel__rawptr(struct perf_evsel
*evsel
, struct perf_sample
*sample
,
201 u64
perf_evsel__intval(struct perf_evsel
*evsel
, struct perf_sample
*sample
,
204 static inline char *perf_evsel__strval(struct perf_evsel
*evsel
,
205 struct perf_sample
*sample
,
208 return perf_evsel__rawptr(evsel
, sample
, name
);
213 struct format_field
*perf_evsel__field(struct perf_evsel
*evsel
, const char *name
);
215 #define perf_evsel__match(evsel, t, c) \
216 (evsel->attr.type == PERF_TYPE_##t && \
217 evsel->attr.config == PERF_COUNT_##c)
219 static inline bool perf_evsel__match2(struct perf_evsel
*e1
,
220 struct perf_evsel
*e2
)
222 return (e1
->attr
.type
== e2
->attr
.type
) &&
223 (e1
->attr
.config
== e2
->attr
.config
);
226 #define perf_evsel__cmp(a, b) \
229 (a)->attr.type == (b)->attr.type && \
230 (a)->attr.config == (b)->attr.config)
232 int perf_evsel__read(struct perf_evsel
*evsel
, int cpu
, int thread
,
233 struct perf_counts_values
*count
);
235 int __perf_evsel__read_on_cpu(struct perf_evsel
*evsel
,
236 int cpu
, int thread
, bool scale
);
239 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
241 * @evsel - event selector to read value
242 * @cpu - CPU of interest
243 * @thread - thread of interest
245 static inline int perf_evsel__read_on_cpu(struct perf_evsel
*evsel
,
248 return __perf_evsel__read_on_cpu(evsel
, cpu
, thread
, false);
252 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
254 * @evsel - event selector to read value
255 * @cpu - CPU of interest
256 * @thread - thread of interest
258 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel
*evsel
,
261 return __perf_evsel__read_on_cpu(evsel
, cpu
, thread
, true);
264 int perf_evsel__parse_sample(struct perf_evsel
*evsel
, union perf_event
*event
,
265 struct perf_sample
*sample
);
267 static inline struct perf_evsel
*perf_evsel__next(struct perf_evsel
*evsel
)
269 return list_entry(evsel
->node
.next
, struct perf_evsel
, node
);
272 static inline struct perf_evsel
*perf_evsel__prev(struct perf_evsel
*evsel
)
274 return list_entry(evsel
->node
.prev
, struct perf_evsel
, node
);
278 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
280 * @evsel - evsel selector to be tested
282 * Return %true if @evsel is a group leader or a stand-alone event
284 static inline bool perf_evsel__is_group_leader(const struct perf_evsel
*evsel
)
286 return evsel
->leader
== evsel
;
290 * perf_evsel__is_group_event - Return whether given evsel is a group event
292 * @evsel - evsel selector to be tested
294 * Return %true iff event group view is enabled and @evsel is a actual group
295 * leader which has other members in the group
297 static inline bool perf_evsel__is_group_event(struct perf_evsel
*evsel
)
299 if (!symbol_conf
.event_group
)
302 return perf_evsel__is_group_leader(evsel
) && evsel
->nr_members
> 1;
306 * perf_evsel__is_function_event - Return whether given evsel is a function
309 * @evsel - evsel selector to be tested
311 * Return %true if event is function trace event
313 static inline bool perf_evsel__is_function_event(struct perf_evsel
*evsel
)
315 #define FUNCTION_EVENT "ftrace:function"
317 return evsel
->name
&&
318 !strncmp(FUNCTION_EVENT
, evsel
->name
, sizeof(FUNCTION_EVENT
));
320 #undef FUNCTION_EVENT
323 struct perf_attr_details
{
330 int perf_evsel__fprintf(struct perf_evsel
*evsel
,
331 struct perf_attr_details
*details
, FILE *fp
);
333 bool perf_evsel__fallback(struct perf_evsel
*evsel
, int err
,
334 char *msg
, size_t msgsize
);
335 int perf_evsel__open_strerror(struct perf_evsel
*evsel
, struct target
*target
,
336 int err
, char *msg
, size_t size
);
338 static inline int perf_evsel__group_idx(struct perf_evsel
*evsel
)
340 return evsel
->idx
- evsel
->leader
->idx
;
343 #define for_each_group_member(_evsel, _leader) \
344 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
345 (_evsel) && (_evsel)->leader == (_leader); \
346 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
348 static inline bool has_branch_callstack(struct perf_evsel
*evsel
)
350 return evsel
->attr
.branch_sample_type
& PERF_SAMPLE_BRANCH_CALL_STACK
;
353 typedef int (*attr__fprintf_f
)(FILE *, const char *, const char *, void *);
355 int perf_event_attr__fprintf(FILE *fp
, struct perf_event_attr
*attr
,
356 attr__fprintf_f attr__fprintf
, void *priv
);
358 #endif /* __PERF_EVSEL_H */