[deliverable/linux.git] / tools / perf / util / evsel.h

#ifndef __PERF_EVSEL_H
#define __PERF_EVSEL_H 1

#include <linux/list.h>
#include <stdbool.h>
#include <stddef.h>
#include <linux/perf_event.h>
#include "types.h"
#include "xyarray.h"
#include "cgroup.h"
#include "hist.h"
 
struct perf_counts_values {
	union {
		struct {
			u64 val;
			u64 ena;
			u64 run;
		};
		u64 values[3];
	};
};

struct perf_counts {
	s8		   	  scaled;
	struct perf_counts_values aggr;
	struct perf_counts_values cpu[];
};

struct perf_evsel;

/*
 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
 * more than one entry in the evlist.
 */
struct perf_sample_id {
	struct hlist_node 	node;
	u64		 	id;
	struct perf_evsel	*evsel;
};

/** struct perf_evsel - event selector
 *
 * @name - Can be set to retain the original event name passed by the user,
 *         so that when showing results in tools such as 'perf stat', we
 *         show the name used, not some alias.
 */
struct perf_evsel {
	struct list_head	node;
	struct perf_event_attr	attr;
	char			*filter;
	struct xyarray		*fd;
	struct xyarray		*sample_id;
	u64			*id;
	struct perf_counts	*counts;
	int			idx;
	u32			ids;
	struct hists		hists;
	char			*name;
	struct event_format	*tp_format;
	union {
		void		*priv;
		off_t		id_offset;
	};
	struct cgroup_sel	*cgrp;
	struct {
		void		*func;
		void		*data;
	} handler;
	struct cpu_map		*cpus;
	unsigned int		sample_size;
	bool 			supported;
	bool 			needs_swap;
	/* parse modifier helper */
	int			exclude_GH;
	struct perf_evsel	*leader;
	char			*group_name;
};

struct cpu_map;
struct thread_map;
struct perf_evlist;
struct perf_record_opts;

struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx);

struct event_format *event_format__new(const char *sys, const char *name);

void perf_evsel__init(struct perf_evsel *evsel,
		      struct perf_event_attr *attr, int idx);
void perf_evsel__exit(struct perf_evsel *evsel);
void perf_evsel__delete(struct perf_evsel *evsel);

void perf_evsel__config(struct perf_evsel *evsel,
			struct perf_record_opts *opts,
			struct perf_evsel *first);

bool perf_evsel__is_cache_op_valid(u8 type, u8 op);

#define PERF_EVSEL__MAX_ALIASES 8

extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
				       [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
					  [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
					      [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
					    char *bf, size_t size);
const char *perf_evsel__name(struct perf_evsel *evsel);

int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__free_fd(struct perf_evsel *evsel);
void perf_evsel__free_id(struct perf_evsel *evsel);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);

int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
			   const char *filter);

int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
			     struct cpu_map *cpus);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
				struct thread_map *threads);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
		     struct thread_map *threads);
void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);

struct perf_sample;

void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
			 const char *name);
u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
		       const char *name);

static inline char *perf_evsel__strval(struct perf_evsel *evsel,
				       struct perf_sample *sample,
				       const char *name)
{
	return perf_evsel__rawptr(evsel, sample, name);
}

struct format_field;

struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);

#define perf_evsel__match(evsel, t, c)		\
	(evsel->attr.type == PERF_TYPE_##t &&	\
	 evsel->attr.config == PERF_COUNT_##c)

static inline bool perf_evsel__match2(struct perf_evsel *e1,
				      struct perf_evsel *e2)
{
	return (e1->attr.type == e2->attr.type) &&
	       (e1->attr.config == e2->attr.config);
}

int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
			      int cpu, int thread, bool scale);

/**
 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
 *
 * @evsel - event selector to read value
 * @cpu - CPU of interest
 * @thread - thread of interest
 */
static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
					  int cpu, int thread)
{
	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
}

/**
 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
 *
 * @evsel - event selector to read value
 * @cpu - CPU of interest
 * @thread - thread of interest
 */
static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
						 int cpu, int thread)
{
	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
}

int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
		       bool scale);

/**
 * perf_evsel__read - Read the aggregate results on all CPUs
 *
 * @evsel - event selector to read value
 * @ncpus - Number of cpus affected, from zero
 * @nthreads - Number of threads affected, from zero
 */
static inline int perf_evsel__read(struct perf_evsel *evsel,
				    int ncpus, int nthreads)
{
	return __perf_evsel__read(evsel, ncpus, nthreads, false);
}

/**
 * perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
 *
 * @evsel - event selector to read value
 * @ncpus - Number of cpus affected, from zero
 * @nthreads - Number of threads affected, from zero
 */
static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
					  int ncpus, int nthreads)
{
	return __perf_evsel__read(evsel, ncpus, nthreads, true);
}

void hists__init(struct hists *hists);

int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
			     struct perf_sample *sample);

static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
{
	return list_entry(evsel->node.next, struct perf_evsel, node);
}
#endif /* __PERF_EVSEL_H */
Commit	Line	Data
	1	#ifndef __PERF_EVSEL_H
	2	#define __PERF_EVSEL_H 1
	3
	4	#include <linux/list.h>
	5	#include <stdbool.h>
	6	#include <stddef.h>
	7	#include <linux/perf_event.h>
	8	#include "types.h"
	9	#include "xyarray.h"
	10	#include "cgroup.h"
	11	#include "hist.h"
	12
	13	struct perf_counts_values {
	14	union {
	15	struct {
	16	u64 val;
	17	u64 ena;
	18	u64 run;
	19	};
	20	u64 values[3];
	21	};
	22	};
	23
	24	struct perf_counts {
	25	s8 scaled;
	26	struct perf_counts_values aggr;
	27	struct perf_counts_values cpu[];
	28	};
	29
	30	struct perf_evsel;
	31
	32	/*
	33	* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
	34	* more than one entry in the evlist.
	35	*/
	36	struct perf_sample_id {
	37	struct hlist_node node;
	38	u64 id;
	39	struct perf_evsel *evsel;
	40	};
	41
	42	/** struct perf_evsel - event selector
	43	*
	44	* @name - Can be set to retain the original event name passed by the user,
	45	* so that when showing results in tools such as 'perf stat', we
	46	* show the name used, not some alias.
	47	*/
	48	struct perf_evsel {
	49	struct list_head node;
	50	struct perf_event_attr attr;
	51	char *filter;
	52	struct xyarray *fd;
	53	struct xyarray *sample_id;
	54	u64 *id;
	55	struct perf_counts *counts;
	56	int idx;
	57	u32 ids;
	58	struct hists hists;
	59	char *name;
	60	struct event_format *tp_format;
	61	union {
	62	void *priv;
	63	off_t id_offset;
	64	};
	65	struct cgroup_sel *cgrp;
	66	struct {
	67	void *func;
	68	void *data;
	69	} handler;
	70	struct cpu_map *cpus;
	71	unsigned int sample_size;
	72	bool supported;
	73	bool needs_swap;
	74	/* parse modifier helper */
	75	int exclude_GH;
	76	struct perf_evsel *leader;
	77	char *group_name;
	78	};
	79
	80	struct cpu_map;
	81	struct thread_map;
	82	struct perf_evlist;
	83	struct perf_record_opts;
	84
	85	struct perf_evsel perf_evsel__new(struct perf_event_attr attr, int idx);
	86	struct perf_evsel perf_evsel__newtp(const char sys, const char *name, int idx);
	87
	88	struct event_format event_format__new(const char sys, const char *name);
	89
	90	void perf_evsel__init(struct perf_evsel *evsel,
	91	struct perf_event_attr *attr, int idx);
	92	void perf_evsel__exit(struct perf_evsel *evsel);
	93	void perf_evsel__delete(struct perf_evsel *evsel);
	94
	95	void perf_evsel__config(struct perf_evsel *evsel,
	96	struct perf_record_opts *opts,
	97	struct perf_evsel *first);
	98
	99	bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
	100
	101	#define PERF_EVSEL__MAX_ALIASES 8
	102
	103	extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
	104	[PERF_EVSEL__MAX_ALIASES];
	105	extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
	106	[PERF_EVSEL__MAX_ALIASES];
	107	extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
	108	[PERF_EVSEL__MAX_ALIASES];
	109	extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
	110	extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
	111	int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
	112	char *bf, size_t size);
	113	const char perf_evsel__name(struct perf_evsel evsel);
	114
	115	int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
	116	int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
	117	int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
	118	void perf_evsel__free_fd(struct perf_evsel *evsel);
	119	void perf_evsel__free_id(struct perf_evsel *evsel);
	120	void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
	121
	122	int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
	123	const char *filter);
	124
	125	int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
	126	struct cpu_map *cpus);
	127	int perf_evsel__open_per_thread(struct perf_evsel *evsel,
	128	struct thread_map *threads);
	129	int perf_evsel__open(struct perf_evsel evsel, struct cpu_map cpus,
	130	struct thread_map *threads);
	131	void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
	132
	133	struct perf_sample;
	134
	135	void perf_evsel__rawptr(struct perf_evsel evsel, struct perf_sample *sample,
	136	const char *name);
	137	u64 perf_evsel__intval(struct perf_evsel evsel, struct perf_sample sample,
	138	const char *name);
	139
	140	static inline char perf_evsel__strval(struct perf_evsel evsel,
	141	struct perf_sample *sample,
	142	const char *name)
	143	{
	144	return perf_evsel__rawptr(evsel, sample, name);
	145	}
	146
	147	struct format_field;
	148
	149	struct format_field perf_evsel__field(struct perf_evsel evsel, const char *name);
	150
	151	#define perf_evsel__match(evsel, t, c) \
	152	(evsel->attr.type == PERF_TYPE_##t && \
	153	evsel->attr.config == PERF_COUNT_##c)
	154
	155	static inline bool perf_evsel__match2(struct perf_evsel *e1,
	156	struct perf_evsel *e2)
	157	{
	158	return (e1->attr.type == e2->attr.type) &&
	159	(e1->attr.config == e2->attr.config);
	160	}
	161
	162	int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	163	int cpu, int thread, bool scale);
	164
	165	/**
	166	* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
	167	*
	168	* @evsel - event selector to read value
	169	* @cpu - CPU of interest
	170	* @thread - thread of interest
	171	*/
	172	static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	173	int cpu, int thread)
	174	{
	175	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
	176	}
	177
	178	/**
	179	* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
	180	*
	181	* @evsel - event selector to read value
	182	* @cpu - CPU of interest
	183	* @thread - thread of interest
	184	*/
	185	static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
	186	int cpu, int thread)
	187	{
	188	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
	189	}
	190
	191	int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
	192	bool scale);
	193
	194	/**
	195	* perf_evsel__read - Read the aggregate results on all CPUs
	196	*
	197	* @evsel - event selector to read value
	198	* @ncpus - Number of cpus affected, from zero
	199	* @nthreads - Number of threads affected, from zero
	200	*/
	201	static inline int perf_evsel__read(struct perf_evsel *evsel,
	202	int ncpus, int nthreads)
	203	{
	204	return __perf_evsel__read(evsel, ncpus, nthreads, false);
	205	}
	206
	207	/**
	208	* perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
	209	*
	210	* @evsel - event selector to read value
	211	* @ncpus - Number of cpus affected, from zero
	212	* @nthreads - Number of threads affected, from zero
	213	*/
	214	static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
	215	int ncpus, int nthreads)
	216	{
	217	return __perf_evsel__read(evsel, ncpus, nthreads, true);
	218	}
	219
	220	void hists__init(struct hists *hists);
	221
	222	int perf_evsel__parse_sample(struct perf_evsel evsel, union perf_event event,
	223	struct perf_sample *sample);
	224
	225	static inline struct perf_evsel perf_evsel__next(struct perf_evsel evsel)
	226	{
	227	return list_entry(evsel->node.next, struct perf_evsel, node);
	228	}
	229	#endif /* __PERF_EVSEL_H */