2 #define __PERF_MMAP_H 1
4 #include <internal/mmap.h>
5 #include <linux/types.h>
6 #include <linux/bitops.h>
7 #include <perf/cpumap.h>
8 #ifdef HAVE_AIO_SUPPORT
12 #include "util/compress.h"
16 struct mmap_cpu_mask {
21 #define MMAP_CPU_MASK_BYTES(m) \
22 (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))
25 * struct mmap - perf's ring buffer mmap details
27 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
30 struct perf_mmap core;
31 struct auxtrace_mmap auxtrace_mmap;
32 #ifdef HAVE_AIO_SUPPORT
35 struct aiocb *cblocks;
40 struct mmap_cpu_mask affinity_mask;
42 struct perf_data_file *file;
43 struct zstd_data zstd_data;
47 struct perf_mmap_param core;
48 int nr_cblocks, affinity, flush, comp_level;
49 struct auxtrace_mmap_params auxtrace_mp;
52 int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu);
53 void mmap__munmap(struct mmap *map);
55 union perf_event *perf_mmap__read_forward(struct mmap *map);
57 int perf_mmap__push(struct mmap *md, void *to,
58 int push(struct mmap *map, void *to, void *buf, size_t size));
60 size_t mmap__mmap_len(struct mmap *map);
62 void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);
64 int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original,
65 struct mmap_cpu_mask *clone);
67 #endif /*__PERF_MMAP_H */