2 #define __PERF_MMAP_H 1
4 #include <internal/mmap.h>
5 #include <linux/compiler.h>
6 #include <linux/refcount.h>
7 #include <linux/types.h>
8 #include <linux/ring_buffer.h>
9 #include <linux/bitops.h>
10 #include <perf/cpumap.h>
12 #include <pthread.h> // for cpu_set_t
13 #ifdef HAVE_AIO_SUPPORT
18 #include "util/compress.h"
22 struct mmap_cpu_mask {
27 #define MMAP_CPU_MASK_BYTES(m) \
28 (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long))
31 * struct mmap - perf's ring buffer mmap details
33 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
36 struct perf_mmap core;
37 struct auxtrace_mmap auxtrace_mmap;
38 #ifdef HAVE_AIO_SUPPORT
41 struct aiocb *cblocks;
46 struct mmap_cpu_mask affinity_mask;
49 struct perf_data_file *file;
50 struct zstd_data zstd_data;
54 struct perf_mmap_param core;
55 int nr_cblocks, affinity, flush, comp_level;
56 struct auxtrace_mmap_params auxtrace_mp;
59 int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu);
60 void mmap__munmap(struct mmap *map);
62 union perf_event *perf_mmap__read_forward(struct mmap *map);
64 int perf_mmap__push(struct mmap *md, void *to,
65 int push(struct mmap *map, void *to, void *buf, size_t size));
67 size_t mmap__mmap_len(struct mmap *map);
69 void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag);
71 int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original,
72 struct mmap_cpu_mask *clone);
74 #endif /*__PERF_MMAP_H */