[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"
#include "cgroup.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 cgroup_sel	*cgrp;
};

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"
023695d9	9	#include "cgroup.h"
c52b12ed ACM	10
	11	struct perf_counts_values {
	12	union {
	13	struct {
	14	u64 val;
	15	u64 ena;
	16	u64 run;
	17	};
	18	u64 values[3];
	19	};
	20	};
	21
	22	struct perf_counts {
	23	s8 scaled;
	24	struct perf_counts_values aggr;
	25	struct perf_counts_values cpu[];
	26	};
69aad6f1	27
70db7533 ACM	28	struct perf_evsel;
	29
	30	/*
	31	* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
	32	* more than one entry in the evlist.
	33	*/
	34	struct perf_sample_id {
	35	struct hlist_node node;
	36	u64 id;
	37	struct perf_evsel *evsel;
	38	};
	39
69aad6f1 ACM	40	struct perf_evsel {
	41	struct list_head node;
	42	struct perf_event_attr attr;
	43	char *filter;
	44	struct xyarray *fd;
70db7533	45	struct xyarray *id;
c52b12ed	46	struct perf_counts *counts;
69aad6f1 ACM	47	int idx;
69aad6f1 ACM	48	void *priv;
023695d9	49	struct cgroup_sel *cgrp;
69aad6f1 ACM	50	};
69aad6f1 ACM	51
86bd5e86 ACM	52	struct cpu_map;
86bd5e86 ACM	53	struct thread_map;
70082dd9	54	struct perf_evlist;
86bd5e86	55
23a2f3ab	56	struct perf_evsel perf_evsel__new(struct perf_event_attr attr, int idx);
ef1d1af2 ACM	57	void perf_evsel__init(struct perf_evsel *evsel,
	58	struct perf_event_attr *attr, int idx);
	59	void perf_evsel__exit(struct perf_evsel *evsel);
69aad6f1 ACM	60	void perf_evsel__delete(struct perf_evsel *evsel);
	61
	62	int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
70db7533	63	int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
c52b12ed	64	int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
69aad6f1	65	void perf_evsel__free_fd(struct perf_evsel *evsel);
70db7533	66	void perf_evsel__free_id(struct perf_evsel *evsel);
c52b12ed	67	void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
69aad6f1	68
f08199d3	69	int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
9d04f178	70	struct cpu_map *cpus, bool group, bool inherit);
f08199d3	71	int perf_evsel__open_per_thread(struct perf_evsel *evsel,
9d04f178	72	struct thread_map *threads, bool group, bool inherit);
f08199d3	73	int perf_evsel__open(struct perf_evsel evsel, struct cpu_map cpus,
9d04f178	74	struct thread_map *threads, bool group, bool inherit);
48290609	75
daec78a0 ACM	76	#define perf_evsel__match(evsel, t, c) \
	77	(evsel->attr.type == PERF_TYPE_##t && \
	78	evsel->attr.config == PERF_COUNT_##c)
	79
c52b12ed ACM	80	int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	81	int cpu, int thread, bool scale);
	82
	83	/**
	84	* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
	85	*
	86	* @evsel - event selector to read value
	87	* @cpu - CPU of interest
	88	* @thread - thread of interest
	89	*/
	90	static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	91	int cpu, int thread)
	92	{
	93	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
	94	}
	95
	96	/**
	97	* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
	98	*
	99	* @evsel - event selector to read value
	100	* @cpu - CPU of interest
	101	* @thread - thread of interest
	102	*/
	103	static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
	104	int cpu, int thread)
	105	{
	106	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
	107	}
	108
	109	int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
	110	bool scale);
	111
	112	/**
	113	* perf_evsel__read - Read the aggregate results on all CPUs
	114	*
	115	* @evsel - event selector to read value
	116	* @ncpus - Number of cpus affected, from zero
	117	* @nthreads - Number of threads affected, from zero
	118	*/
	119	static inline int perf_evsel__read(struct perf_evsel *evsel,
	120	int ncpus, int nthreads)
	121	{
	122	return __perf_evsel__read(evsel, ncpus, nthreads, false);
	123	}
	124
	125	/**
	126	* perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
	127	*
	128	* @evsel - event selector to read value
	129	* @ncpus - Number of cpus affected, from zero
	130	* @nthreads - Number of threads affected, from zero
	131	*/
	132	static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
	133	int ncpus, int nthreads)
	134	{
	135	return __perf_evsel__read(evsel, ncpus, nthreads, true);
	136	}
	137
69aad6f1	138	#endif /* __PERF_EVSEL_H */