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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LIBPERF_INTERNAL_EVLIST_H
3#define __LIBPERF_INTERNAL_EVLIST_H
4
5#include <linux/list.h>
6#include <api/fd/array.h>
7#include <internal/evsel.h>
8
9#define PERF_EVLIST__HLIST_BITS 8
10#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
11
12struct perf_cpu_map;
13struct perf_thread_map;
14struct perf_mmap_param;
15
16struct perf_evlist {
17 struct list_head entries;
18 int nr_entries;
19 bool has_user_cpus;
20 struct perf_cpu_map *cpus;
21 struct perf_cpu_map *all_cpus;
22 struct perf_thread_map *threads;
23 int nr_mmaps;
24 size_t mmap_len;
25 struct fdarray pollfd;
26 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
27 struct perf_mmap *mmap;
28 struct perf_mmap *mmap_ovw;
29 struct perf_mmap *mmap_first;
30 struct perf_mmap *mmap_ovw_first;
31};
32
33typedef void
34(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool);
35typedef struct perf_mmap*
36(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
37typedef int
38(*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, int);
39
40struct perf_evlist_mmap_ops {
41 perf_evlist_mmap__cb_idx_t idx;
42 perf_evlist_mmap__cb_get_t get;
43 perf_evlist_mmap__cb_mmap_t mmap;
44};
45
46int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
47int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
48 void *ptr, short revent);
49
50int perf_evlist__mmap_ops(struct perf_evlist *evlist,
51 struct perf_evlist_mmap_ops *ops,
52 struct perf_mmap_param *mp);
53
54void perf_evlist__init(struct perf_evlist *evlist);
55void perf_evlist__exit(struct perf_evlist *evlist);
56
57/**
58 * __perf_evlist__for_each_entry - iterate thru all the evsels
59 * @list: list_head instance to iterate
60 * @evsel: struct perf_evsel iterator
61 */
62#define __perf_evlist__for_each_entry(list, evsel) \
63 list_for_each_entry(evsel, list, node)
64
65/**
66 * evlist__for_each_entry - iterate thru all the evsels
67 * @evlist: perf_evlist instance to iterate
68 * @evsel: struct perf_evsel iterator
69 */
70#define perf_evlist__for_each_entry(evlist, evsel) \
71 __perf_evlist__for_each_entry(&(evlist)->entries, evsel)
72
73/**
74 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
75 * @list: list_head instance to iterate
76 * @evsel: struct evsel iterator
77 */
78#define __perf_evlist__for_each_entry_reverse(list, evsel) \
79 list_for_each_entry_reverse(evsel, list, node)
80
81/**
82 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
83 * @evlist: evlist instance to iterate
84 * @evsel: struct evsel iterator
85 */
86#define perf_evlist__for_each_entry_reverse(evlist, evsel) \
87 __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
88
89/**
90 * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
91 * @list: list_head instance to iterate
92 * @tmp: struct evsel temp iterator
93 * @evsel: struct evsel iterator
94 */
95#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \
96 list_for_each_entry_safe(evsel, tmp, list, node)
97
98/**
99 * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
100 * @evlist: evlist instance to iterate
101 * @evsel: struct evsel iterator
102 * @tmp: struct evsel temp iterator
103 */
104#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \
105 __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
106
107static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
108{
109 return list_entry(evlist->entries.next, struct perf_evsel, node);
110}
111
112static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
113{
114 return list_entry(evlist->entries.prev, struct perf_evsel, node);
115}
116
117u64 perf_evlist__read_format(struct perf_evlist *evlist);
118
119void perf_evlist__id_add(struct perf_evlist *evlist,
120 struct perf_evsel *evsel,
121 int cpu, int thread, u64 id);
122
123int perf_evlist__id_add_fd(struct perf_evlist *evlist,
124 struct perf_evsel *evsel,
125 int cpu, int thread, int fd);
126
127#endif /* __LIBPERF_INTERNAL_EVLIST_H */