[linux-2.6-block.git] / tools / perf / util / evsel.h

#ifndef __PERF_EVSEL_H
#define __PERF_EVSEL_H 1

#include <linux/list.h>
#include <stdbool.h>
#include "../../../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;
	/* 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);
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__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;

char *perf_evsel__strval(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);

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, bool swapped);

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