74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
|
#ifndef __PERF_MMAP_H
|
||
|
#define __PERF_MMAP_H 1
|
||
|
|
||
|
#include <internal/mmap.h>
|
||
|
#include <linux/compiler.h>
|
||
|
#include <linux/refcount.h>
|
||
|
#include <linux/types.h>
|
||
|
#include <linux/ring_buffer.h>
|
||
|
#include <stdbool.h>
|
||
|
#include <pthread.h> // for cpu_set_t
|
||
|
#ifdef HAVE_AIO_SUPPORT
|
||
|
#include <aio.h>
|
||
|
#endif
|
||
|
#include "auxtrace.h"
|
||
|
#include "event.h"
|
||
|
|
||
|
struct aiocb;
|
||
|
/**
|
||
|
* 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
|
||
|
cpu_set_t affinity_mask;
|
||
|
void *data;
|
||
|
int comp_level;
|
||
|
};
|
||
|
|
||
|
struct mmap_params {
|
||
|
int prot, mask, nr_cblocks, affinity, flush, comp_level;
|
||
|
struct auxtrace_mmap_params auxtrace_mp;
|
||
|
};
|
||
|
|
||
|
int perf_mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
|
||
|
void perf_mmap__munmap(struct mmap *map);
|
||
|
|
||
|
void perf_mmap__get(struct mmap *map);
|
||
|
void perf_mmap__put(struct mmap *map);
|
||
|
|
||
|
void perf_mmap__consume(struct mmap *map);
|
||
|
|
||
|
static inline u64 perf_mmap__read_head(struct mmap *mm)
|
||
|
{
|
||
|
return ring_buffer_read_head(mm->core.base);
|
||
|
}
|
||
|
|
||
|
static inline void perf_mmap__write_tail(struct mmap *md, u64 tail)
|
||
|
{
|
||
|
ring_buffer_write_tail(md->core.base, tail);
|
||
|
}
|
||
|
|
||
|
union perf_event *perf_mmap__read_forward(struct mmap *map);
|
||
|
|
||
|
union perf_event *perf_mmap__read_event(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 perf_mmap__mmap_len(struct mmap *map);
|
||
|
|
||
|
int perf_mmap__read_init(struct mmap *md);
|
||
|
void perf_mmap__read_done(struct mmap *map);
|
||
|
#endif /*__PERF_MMAP_H */
|