Linux kernel mirror (for testing)
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linux
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 int nr_groups;
20 bool has_user_cpus;
21 struct perf_cpu_map *cpus;
22 struct perf_cpu_map *all_cpus;
23 struct perf_thread_map *threads;
24 int nr_mmaps;
25 size_t mmap_len;
26 struct fdarray pollfd;
27 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
28 struct perf_mmap *mmap;
29 struct perf_mmap *mmap_ovw;
30 struct perf_mmap *mmap_first;
31 struct perf_mmap *mmap_ovw_first;
32};
33
34typedef void
35(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool);
36typedef struct perf_mmap*
37(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
38typedef int
39(*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, int);
40
41struct perf_evlist_mmap_ops {
42 perf_evlist_mmap__cb_idx_t idx;
43 perf_evlist_mmap__cb_get_t get;
44 perf_evlist_mmap__cb_mmap_t mmap;
45};
46
47int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
48int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
49 void *ptr, short revent, enum fdarray_flags flags);
50
51int perf_evlist__mmap_ops(struct perf_evlist *evlist,
52 struct perf_evlist_mmap_ops *ops,
53 struct perf_mmap_param *mp);
54
55void perf_evlist__init(struct perf_evlist *evlist);
56void perf_evlist__exit(struct perf_evlist *evlist);
57
58/**
59 * __perf_evlist__for_each_entry - iterate thru all the evsels
60 * @list: list_head instance to iterate
61 * @evsel: struct perf_evsel iterator
62 */
63#define __perf_evlist__for_each_entry(list, evsel) \
64 list_for_each_entry(evsel, list, node)
65
66/**
67 * evlist__for_each_entry - iterate thru all the evsels
68 * @evlist: perf_evlist instance to iterate
69 * @evsel: struct perf_evsel iterator
70 */
71#define perf_evlist__for_each_entry(evlist, evsel) \
72 __perf_evlist__for_each_entry(&(evlist)->entries, evsel)
73
74/**
75 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
76 * @list: list_head instance to iterate
77 * @evsel: struct evsel iterator
78 */
79#define __perf_evlist__for_each_entry_reverse(list, evsel) \
80 list_for_each_entry_reverse(evsel, list, node)
81
82/**
83 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
84 * @evlist: evlist instance to iterate
85 * @evsel: struct evsel iterator
86 */
87#define perf_evlist__for_each_entry_reverse(evlist, evsel) \
88 __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
89
90/**
91 * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
92 * @list: list_head instance to iterate
93 * @tmp: struct evsel temp iterator
94 * @evsel: struct evsel iterator
95 */
96#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \
97 list_for_each_entry_safe(evsel, tmp, list, node)
98
99/**
100 * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
101 * @evlist: evlist instance to iterate
102 * @evsel: struct evsel iterator
103 * @tmp: struct evsel temp iterator
104 */
105#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \
106 __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
107
108static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
109{
110 return list_entry(evlist->entries.next, struct perf_evsel, node);
111}
112
113static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
114{
115 return list_entry(evlist->entries.prev, struct perf_evsel, node);
116}
117
118u64 perf_evlist__read_format(struct perf_evlist *evlist);
119
120void perf_evlist__id_add(struct perf_evlist *evlist,
121 struct perf_evsel *evsel,
122 int cpu, int thread, u64 id);
123
124int perf_evlist__id_add_fd(struct perf_evlist *evlist,
125 struct perf_evsel *evsel,
126 int cpu, int thread, int fd);
127
128void perf_evlist__reset_id_hash(struct perf_evlist *evlist);
129
130void __perf_evlist__set_leader(struct list_head *list);
131#endif /* __LIBPERF_INTERNAL_EVLIST_H */