[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 <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 {
	struct list_head	node;
	struct perf_event_attr	attr;
	char			*filter;
	struct xyarray		*fd;
	struct perf_counts	*counts;
	int			idx;
	void			*priv;
};

struct perf_evsel *perf_evsel__new(u32 type, u64 config, int idx);
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_counts(struct perf_evsel *evsel, int ncpus);
void perf_evsel__free_fd(struct perf_evsel *evsel);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);

#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>
69aad6f1 ACM	6	#include <linux/perf_event.h>
	7	#include "types.h"
	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 ACM	26
	27	struct perf_evsel {
	28	struct list_head node;
	29	struct perf_event_attr attr;
	30	char *filter;
	31	struct xyarray *fd;
c52b12ed	32	struct perf_counts *counts;
69aad6f1 ACM	33	int idx;
	34	void *priv;
	35	};
	36
	37	struct perf_evsel *perf_evsel__new(u32 type, u64 config, int idx);
	38	void perf_evsel__delete(struct perf_evsel *evsel);
	39
	40	int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
c52b12ed	41	int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);
69aad6f1	42	void perf_evsel__free_fd(struct perf_evsel *evsel);
c52b12ed	43	void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
69aad6f1	44
daec78a0 ACM	45	#define perf_evsel__match(evsel, t, c) \
	46	(evsel->attr.type == PERF_TYPE_##t && \
	47	evsel->attr.config == PERF_COUNT_##c)
	48
c52b12ed ACM	49	int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	50	int cpu, int thread, bool scale);
	51
	52	/**
	53	* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
	54	*
	55	* @evsel - event selector to read value
	56	* @cpu - CPU of interest
	57	* @thread - thread of interest
	58	*/
	59	static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	60	int cpu, int thread)
	61	{
	62	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
	63	}
	64
	65	/**
	66	* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
	67	*
	68	* @evsel - event selector to read value
	69	* @cpu - CPU of interest
	70	* @thread - thread of interest
	71	*/
	72	static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
	73	int cpu, int thread)
	74	{
	75	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
	76	}
	77
	78	int __perf_evsel__read(struct perf_evsel *evsel, int ncpus, int nthreads,
	79	bool scale);
	80
	81	/**
	82	* perf_evsel__read - Read the aggregate results on all CPUs
	83	*
	84	* @evsel - event selector to read value
	85	* @ncpus - Number of cpus affected, from zero
	86	* @nthreads - Number of threads affected, from zero
	87	*/
	88	static inline int perf_evsel__read(struct perf_evsel *evsel,
	89	int ncpus, int nthreads)
	90	{
	91	return __perf_evsel__read(evsel, ncpus, nthreads, false);
	92	}
	93
	94	/**
	95	* perf_evsel__read_scaled - Read the aggregate results on all CPUs, scaled
	96	*
	97	* @evsel - event selector to read value
	98	* @ncpus - Number of cpus affected, from zero
	99	* @nthreads - Number of threads affected, from zero
	100	*/
	101	static inline int perf_evsel__read_scaled(struct perf_evsel *evsel,
	102	int ncpus, int nthreads)
	103	{
	104	return __perf_evsel__read(evsel, ncpus, nthreads, true);
	105	}
	106
69aad6f1	107	#endif /* __PERF_EVSEL_H */