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

#ifndef __PERF_MMAP_H
#define __PERF_MMAP_H 1

#include <internal/mmap.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <perf/cpumap.h>
#ifdef HAVE_AIO_SUPPORT
#include <aio.h>
#endif
#include "auxtrace.h"
#include "util/compress.h"

struct aiocb;

struct mmap_cpu_mask {
	unsigned long *bits;
	size_t nbits;
};

#define MMAP_CPU_MASK_BYTES(m) \
	(BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))

/**
 * struct mmap - perf's ring buffer mmap details
 *
 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
 */
struct mmap {
	struct perf_mmap	core;
	struct auxtrace_mmap auxtrace_mmap;
#ifdef HAVE_AIO_SUPPORT
	struct {
		void		 **data;
		struct aiocb	 *cblocks;
		struct aiocb	 **aiocb;
		int		 nr_cblocks;
	} aio;
#endif
	struct mmap_cpu_mask	affinity_mask;
	void		*data;
	struct perf_data_file *file;
	struct zstd_data      zstd_data;
};

struct mmap_params {
	struct perf_mmap_param core;
	int nr_cblocks, affinity, flush, comp_level;
	struct auxtrace_mmap_params auxtrace_mp;
};

int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu);
void mmap__munmap(struct mmap *map);

union perf_event *perf_mmap__read_forward(struct mmap *map);

int perf_mmap__push(struct mmap *md, void *to,
		    int push(struct mmap *map, void *to, void *buf, size_t size));

size_t mmap__mmap_len(struct mmap *map);

void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);

int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original,
				struct mmap_cpu_mask *clone);

#endif /*__PERF_MMAP_H */
Commit	Line	Data
16958497 ACM	1	#ifndef __PERF_MMAP_H
	2	#define __PERF_MMAP_H 1
	3
547740f7	4	#include <internal/mmap.h>
16958497	5	#include <linux/types.h>
5d4da30f	6	#include <linux/bitops.h>
6d18804b	7	#include <perf/cpumap.h>
0b773831 AB	8	#ifdef HAVE_AIO_SUPPORT
	9	#include <aio.h>
	10	#endif
16958497	11	#include "auxtrace.h"
75f5f1fc	12	#include "util/compress.h"
16958497	13
d3d1af6f	14	struct aiocb;
9c080c02 AB	15
	16	struct mmap_cpu_mask {
	17	unsigned long *bits;
	18	size_t nbits;
	19	};
	20
	21	#define MMAP_CPU_MASK_BYTES(m) \
	22	(BITS_TO_LONGS(((struct mmap_cpu_mask )m)->nbits) sizeof(unsigned long))
	23
16958497	24	/**
a5830532	25	* struct mmap - perf's ring buffer mmap details
16958497 ACM	26	*
	27	* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
	28	*/
a5830532	29	struct mmap {
547740f7	30	struct perf_mmap core;
16958497	31	struct auxtrace_mmap auxtrace_mmap;
0b773831 AB	32	#ifdef HAVE_AIO_SUPPORT
0b773831 AB	33	struct {
93f20c0f AB	34	void **data;
	35	struct aiocb *cblocks;
	36	struct aiocb **aiocb;
d3d1af6f	37	int nr_cblocks;
0b773831 AB	38	} aio;
0b773831 AB	39	#endif
8384a260	40	struct mmap_cpu_mask affinity_mask;
51255a8a	41	void *data;
56f735ff	42	struct perf_data_file *file;
75f5f1fc	43	struct zstd_data zstd_data;
16958497 ACM	44	};
16958497 ACM	45
16958497	46	struct mmap_params {
e440979f JO	47	struct perf_mmap_param core;
e440979f JO	48	int nr_cblocks, affinity, flush, comp_level;
16958497 ACM	49	struct auxtrace_mmap_params auxtrace_mp;
	50	};
	51
6d18804b	52	int mmap__mmap(struct mmap map, struct mmap_params mp, int fd, struct perf_cpu cpu);
59d7ea62	53	void mmap__munmap(struct mmap *map);
16958497	54
a5830532	55	union perf_event perf_mmap__read_forward(struct mmap map);
16958497	56
a5830532 JO	57	int perf_mmap__push(struct mmap md, void to,
a5830532 JO	58	int push(struct mmap map, void to, void *buf, size_t size));
73c17d81	59
bf59b305	60	size_t mmap__mmap_len(struct mmap *map);
16958497	61
9c080c02 AB	62	void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask mask, const char tag);
9c080c02 AB	63
6bd006c6 RM	64	int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original,
	65	struct mmap_cpu_mask *clone);
	66
16958497	67	#endif /__PERF_MMAP_H /