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