32c261c070
Move perf_mmap__mmap() from tools/perf to libperf, it will be used in the following patches. And rename the existing perf's function to mmap__mmap(). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20191007125344.14268-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
#ifndef __PERF_MMAP_H
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#define __PERF_MMAP_H 1
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#include <internal/mmap.h>
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#include <linux/compiler.h>
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#include <linux/refcount.h>
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#include <linux/types.h>
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#include <linux/ring_buffer.h>
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#include <stdbool.h>
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#include <pthread.h> // for cpu_set_t
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#ifdef HAVE_AIO_SUPPORT
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#include <aio.h>
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#endif
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#include "auxtrace.h"
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#include "event.h"
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struct aiocb;
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/**
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* struct mmap - perf's ring buffer mmap details
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*
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* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
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*/
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struct mmap {
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struct perf_mmap core;
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struct auxtrace_mmap auxtrace_mmap;
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#ifdef HAVE_AIO_SUPPORT
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struct {
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void **data;
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struct aiocb *cblocks;
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struct aiocb **aiocb;
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int nr_cblocks;
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} aio;
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#endif
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cpu_set_t affinity_mask;
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void *data;
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int comp_level;
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};
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struct mmap_params {
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struct perf_mmap_param core;
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int nr_cblocks, affinity, flush, comp_level;
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struct auxtrace_mmap_params auxtrace_mp;
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};
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int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, int cpu);
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void perf_mmap__munmap(struct mmap *map);
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void perf_mmap__get(struct mmap *map);
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void perf_mmap__put(struct mmap *map);
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void perf_mmap__consume(struct mmap *map);
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static inline u64 perf_mmap__read_head(struct mmap *mm)
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{
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return ring_buffer_read_head(mm->core.base);
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}
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static inline void perf_mmap__write_tail(struct mmap *md, u64 tail)
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{
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ring_buffer_write_tail(md->core.base, tail);
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}
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union perf_event *perf_mmap__read_forward(struct mmap *map);
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union perf_event *perf_mmap__read_event(struct mmap *map);
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int perf_mmap__push(struct mmap *md, void *to,
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int push(struct mmap *map, void *to, void *buf, size_t size));
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size_t mmap__mmap_len(struct mmap *map);
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int perf_mmap__read_init(struct mmap *md);
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void perf_mmap__read_done(struct mmap *map);
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#endif /*__PERF_MMAP_H */
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