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/cpumap.h>
8#include <internal/evsel.h>
9
10#define PERF_EVLIST__HLIST_BITS 8
11#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
12
13struct perf_cpu_map;
14struct perf_thread_map;
15struct perf_mmap_param;
16
17struct perf_evlist {
18 struct list_head entries;
19 int nr_entries;
20 int nr_groups;
21 bool has_user_cpus;
22 struct perf_cpu_map *cpus;
23 struct perf_cpu_map *all_cpus;
24 struct perf_thread_map *threads;
25 int nr_mmaps;
26 size_t mmap_len;
27 struct fdarray pollfd;
28 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
29 struct perf_mmap *mmap;
30 struct perf_mmap *mmap_ovw;
31 struct perf_mmap *mmap_first;
32 struct perf_mmap *mmap_ovw_first;
33};
34
35typedef void
36(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool);
37typedef struct perf_mmap*
38(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
39typedef int
40(*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, struct perf_cpu);
41
42struct perf_evlist_mmap_ops {
43 perf_evlist_mmap__cb_idx_t idx;
44 perf_evlist_mmap__cb_get_t get;
45 perf_evlist_mmap__cb_mmap_t mmap;
46};
47
48int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
49int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
50 void *ptr, short revent, enum fdarray_flags flags);
51
52int perf_evlist__mmap_ops(struct perf_evlist *evlist,
53 struct perf_evlist_mmap_ops *ops,
54 struct perf_mmap_param *mp);
55
56void perf_evlist__init(struct perf_evlist *evlist);
57void perf_evlist__exit(struct perf_evlist *evlist);
58
59/**
60 * __perf_evlist__for_each_entry - iterate thru all the evsels
61 * @list: list_head instance to iterate
62 * @evsel: struct perf_evsel iterator
63 */
64#define __perf_evlist__for_each_entry(list, evsel) \
65 list_for_each_entry(evsel, list, node)
66
67/**
68 * evlist__for_each_entry - iterate thru all the evsels
69 * @evlist: perf_evlist instance to iterate
70 * @evsel: struct perf_evsel iterator
71 */
72#define perf_evlist__for_each_entry(evlist, evsel) \
73 __perf_evlist__for_each_entry(&(evlist)->entries, evsel)
74
75/**
76 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
77 * @list: list_head instance to iterate
78 * @evsel: struct evsel iterator
79 */
80#define __perf_evlist__for_each_entry_reverse(list, evsel) \
81 list_for_each_entry_reverse(evsel, list, node)
82
83/**
84 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
85 * @evlist: evlist instance to iterate
86 * @evsel: struct evsel iterator
87 */
88#define perf_evlist__for_each_entry_reverse(evlist, evsel) \
89 __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
90
91/**
92 * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
93 * @list: list_head instance to iterate
94 * @tmp: struct evsel temp iterator
95 * @evsel: struct evsel iterator
96 */
97#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \
98 list_for_each_entry_safe(evsel, tmp, list, node)
99
100/**
101 * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
102 * @evlist: evlist instance to iterate
103 * @evsel: struct evsel iterator
104 * @tmp: struct evsel temp iterator
105 */
106#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \
107 __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
108
109static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
110{
111 return list_entry(evlist->entries.next, struct perf_evsel, node);
112}
113
114static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
115{
116 return list_entry(evlist->entries.prev, struct perf_evsel, node);
117}
118
119u64 perf_evlist__read_format(struct perf_evlist *evlist);
120
121void perf_evlist__id_add(struct perf_evlist *evlist,
122 struct perf_evsel *evsel,
123 int cpu, int thread, u64 id);
124
125int perf_evlist__id_add_fd(struct perf_evlist *evlist,
126 struct perf_evsel *evsel,
127 int cpu, int thread, int fd);
128
129void perf_evlist__reset_id_hash(struct perf_evlist *evlist);
130
131void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader);
132#endif /* __LIBPERF_INTERNAL_EVLIST_H */