[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 "../../../include/linux/perf_event.h"
#include "types.h"
#include "xyarray.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 {
	struct list_head	node;
	struct perf_event_attr	attr;
	char			*filter;
	struct xyarray		*fd;
	struct xyarray		*id;
	struct perf_counts	*counts;
	int			idx;
	void			*priv;
};

struct cpu_map;
struct thread_map;
struct perf_evlist;

struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, 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);

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, bool group, bool inherit);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
				struct thread_map *threads, bool group, bool inherit);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
		     struct thread_map *threads, bool group, bool inherit);

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

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);
}

#endif /* __PERF_EVSEL_H */
Commit	Line	Data
69aad6f1 ACM	1	#ifndef __PERF_EVSEL_H
	2	#define __PERF_EVSEL_H 1
	3
	4	#include <linux/list.h>
c52b12ed	5	#include <stdbool.h>
d030260a	6	#include "../../../include/linux/perf_event.h"
69aad6f1 ACM	7	#include "types.h"
69aad6f1 ACM	8	#include "xyarray.h"
c52b12ed ACM	9
	10	struct perf_counts_values {
	11	union {
	12	struct {
	13	u64 val;
	14	u64 ena;
	15	u64 run;
	16	};
	17	u64 values[3];
	18	};
	19	};
	20
	21	struct perf_counts {
	22	s8 scaled;
	23	struct perf_counts_values aggr;
	24	struct perf_counts_values cpu[];
	25	};
69aad6f1	26
70db7533 ACM	27	struct perf_evsel;
	28
	29	/*
	30	* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
	31	* more than one entry in the evlist.
	32	*/
	33	struct perf_sample_id {
	34	struct hlist_node node;
	35	u64 id;
	36	struct perf_evsel *evsel;
	37	};
	38
69aad6f1 ACM	39	struct perf_evsel {
	40	struct list_head node;
	41	struct perf_event_attr attr;
	42	char *filter;
	43	struct xyarray *fd;
70db7533	44	struct xyarray *id;
c52b12ed	45	struct perf_counts *counts;
69aad6f1 ACM	46	int idx;
	47	void *priv;
	48	};
	49
86bd5e86 ACM	50	struct cpu_map;
86bd5e86 ACM	51	struct thread_map;
70082dd9	52	struct perf_evlist;
86bd5e86	53
23a2f3ab	54	struct perf_evsel perf_evsel__new(struct perf_event_attr attr, int idx);
ef1d1af2 ACM	55	void perf_evsel__init(struct perf_evsel *evsel,
	56	struct perf_event_attr *attr, int idx);
	57	void perf_evsel__exit(struct perf_evsel *evsel);
69aad6f1 ACM	58	void perf_evsel__delete(struct perf_evsel *evsel);
	59
	60	int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
70db7533	61	int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
c52b12ed	62	int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
69aad6f1	63	void perf_evsel__free_fd(struct perf_evsel *evsel);
70db7533	64	void perf_evsel__free_id(struct perf_evsel *evsel);
c52b12ed	65	void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
69aad6f1	66
f08199d3	67	int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
9d04f178	68	struct cpu_map *cpus, bool group, bool inherit);
f08199d3	69	int perf_evsel__open_per_thread(struct perf_evsel *evsel,
9d04f178	70	struct thread_map *threads, bool group, bool inherit);
f08199d3	71	int perf_evsel__open(struct perf_evsel evsel, struct cpu_map cpus,
9d04f178	72	struct thread_map *threads, bool group, bool inherit);
48290609	73
daec78a0 ACM	74	#define perf_evsel__match(evsel, t, c) \
	75	(evsel->attr.type == PERF_TYPE_##t && \
	76	evsel->attr.config == PERF_COUNT_##c)
	77
c52b12ed ACM	78	int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	79	int cpu, int thread, bool scale);
	80
	81	/**
	82	* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
	83	*
	84	* @evsel - event selector to read value
	85	* @cpu - CPU of interest
	86	* @thread - thread of interest
	87	*/
	88	static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	89	int cpu, int thread)
	90	{
	91	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
	92	}
	93
	94	/**
	95	* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
	96	*
	97	* @evsel - event selector to read value
	98	* @cpu - CPU of interest
	99	* @thread - thread of interest
	100	*/
	101	static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
	102	int cpu, int thread)
	103	{
	104	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
	105	}
	106
	107	int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
	108	bool scale);
	109
	110	/**
	111	* perf_evsel__read - Read the aggregate results on all CPUs
	112	*
	113	* @evsel - event selector to read value
	114	* @ncpus - Number of cpus affected, from zero
	115	* @nthreads - Number of threads affected, from zero
	116	*/
	117	static inline int perf_evsel__read(struct perf_evsel *evsel,
	118	int ncpus, int nthreads)
	119	{
	120	return __perf_evsel__read(evsel, ncpus, nthreads, false);
	121	}
	122
	123	/**
	124	* perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
	125	*
	126	* @evsel - event selector to read value
	127	* @ncpus - Number of cpus affected, from zero
	128	* @nthreads - Number of threads affected, from zero
	129	*/
	130	static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
	131	int ncpus, int nthreads)
	132	{
	133	return __perf_evsel__read(evsel, ncpus, nthreads, true);
	134	}
	135
69aad6f1	136	#endif /* __PERF_EVSEL_H */