1 | #ifndef __PERF_MMAP_H |
2 | #define __PERF_MMAP_H 1 |
3 | |
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 |
9 | #include <aio.h> |
10 | #endif |
11 | #include "auxtrace.h" |
12 | #include "util/compress.h" |
13 | |
14 | struct aiocb; |
15 | |
16 | struct mmap_cpu_mask { |
17 | unsigned long *bits; |
18 | size_t nbits; |
19 | }; |
20 | |
21 | #define MMAP_CPU_MASK_BYTES(m) \ |
22 | (BITS_TO_LONGS(((struct mmap_cpu_mask *)m)->nbits) * sizeof(unsigned long)) |
23 | |
24 | /** |
25 | * struct mmap - perf's ring buffer mmap details |
26 | * |
27 | * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this |
28 | */ |
29 | struct mmap { |
30 | struct perf_mmap core; |
31 | struct auxtrace_mmap auxtrace_mmap; |
32 | #ifdef HAVE_AIO_SUPPORT |
33 | struct { |
34 | void **data; |
35 | struct aiocb *cblocks; |
36 | struct aiocb **aiocb; |
37 | int nr_cblocks; |
38 | } aio; |
39 | #endif |
40 | struct mmap_cpu_mask affinity_mask; |
41 | void *data; |
42 | struct perf_data_file *file; |
43 | struct zstd_data zstd_data; |
44 | }; |
45 | |
46 | struct mmap_params { |
47 | struct perf_mmap_param core; |
48 | int nr_cblocks, affinity, flush, comp_level; |
49 | struct auxtrace_mmap_params auxtrace_mp; |
50 | }; |
51 | |
52 | int mmap__mmap(struct mmap *map, struct mmap_params *mp, int fd, struct perf_cpu cpu); |
53 | void mmap__munmap(struct mmap *map); |
54 | |
55 | union perf_event *perf_mmap__read_forward(struct mmap *map); |
56 | |
57 | int perf_mmap__push(struct mmap *md, void *to, |
58 | int push(struct mmap *map, void *to, void *buf, size_t size)); |
59 | |
60 | size_t mmap__mmap_len(struct mmap *map); |
61 | |
62 | void mmap_cpu_mask__scnprintf(struct mmap_cpu_mask *mask, const char *tag); |
63 | |
64 | int mmap_cpu_mask__duplicate(struct mmap_cpu_mask *original, |
65 | struct mmap_cpu_mask *clone); |
66 | |
67 | #endif /*__PERF_MMAP_H */ |
68 | |