164 struct perf_event;
215 	int (*event_init)		(struct perf_event *event);
221 	void (*event_mapped)		(struct perf_event *event); /*optional*/
222 	void (*event_unmapped)		(struct perf_event *event); /*optional*/
232 	int  (*add)			(struct perf_event *event, int flags);
233 	void (*del)			(struct perf_event *event, int flags);
240 	void (*start)			(struct perf_event *event, int flags);
241 	void (*stop)			(struct perf_event *event, int flags);
246 	void (*read)			(struct perf_event *event);
274 	int (*event_idx)		(struct perf_event *event); /*optional */
290 	u64 (*count)			(struct perf_event *event); /*optional*/
319 typedef void (*perf_overflow_handler_t)(struct perf_event *,
346 struct perf_event {  struct
377 	struct perf_event		*group_leader;  argument
442 	struct perf_event		*parent;  argument
471 	void (*destroy)(struct perf_event *);  argument
572 	struct perf_event		*event;
615 				   struct perf_event *event);
642 extern int perf_event_refresh(struct perf_event *event, int refresh);
643 extern void perf_event_update_userpage(struct perf_event *event);
644 extern int perf_event_release_kernel(struct perf_event *event);
645 extern struct perf_event *
653 extern u64 perf_event_read_value(struct perf_event *event,
723 			       struct perf_event *event);
726 				struct perf_event *event,
729 extern int perf_event_overflow(struct perf_event *event,
733 static inline bool is_sampling_event(struct perf_event *event)  in is_sampling_event()
741 static inline int is_software_event(struct perf_event *event)  in is_software_event()
813 static inline u64 __perf_event_count(struct perf_event *event)  in __perf_event_count()
874 extern void perf_bp_event(struct perf_event *event, void *data);
882 static inline bool has_branch_stack(struct perf_event *event)  in has_branch_stack()
887 static inline bool needs_branch_stack(struct perf_event *event)  in needs_branch_stack()
892 static inline bool has_aux(struct perf_event *event)  in has_aux()
898 			     struct perf_event *event, unsigned int size);
906 extern u64 perf_swevent_set_period(struct perf_event *event);
907 extern void perf_event_enable(struct perf_event *event);
908 extern void perf_event_disable(struct perf_event *event);
914 		      struct perf_event *event)				{ return NULL; }  in perf_aux_output_begin()
936 static inline int perf_event_refresh(struct perf_event *event, int refresh)  in perf_event_refresh()
946 perf_bp_event(struct perf_event *event, void *data)			{ }  in perf_bp_event()
960 static inline u64 perf_swevent_set_period(struct perf_event *event)	{ return 0; }  in perf_swevent_set_period()
961 static inline void perf_event_enable(struct perf_event *event)		{ }  in perf_event_enable()
962 static inline void perf_event_disable(struct perf_event *event)		{ }  in perf_event_disable()