mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-27 04:47:05 +00:00
6bd006c6eb
This patch adds a new function in util/mmap.c to duplicate a mmap_cpu_mask. This new function will be used in patches in the workqueue patchkit. Signed-off-by: Riccardo Mancini <rickyman7@gmail.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/8943a548ef7a3dd3e015095afad7e9a8b2154c05.1629490974.git.rickyman7@gmail.com [ bitmap_alloc() was renamed to bitmap_zalloc() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
70 lines
1.6 KiB
C
70 lines
1.6 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 <linux/bitops.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_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;
|
|
int comp_level;
|
|
};
|
|
|
|
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, int 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 */
|