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;
14
15struct perf_evlist {
16	struct list_head	 entries;
17	int			 nr_entries;
18	bool			 has_user_cpus;
19	struct perf_cpu_map	*cpus;
20	struct perf_thread_map	*threads;
21	int			 nr_mmaps;
22	size_t			 mmap_len;
23	struct fdarray		 pollfd;
24	struct hlist_head	 heads[PERF_EVLIST__HLIST_SIZE];
25};
26
27int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
28int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
29			    void *ptr, short revent);
30
31/**
32 * __perf_evlist__for_each_entry - iterate thru all the evsels
33 * @list: list_head instance to iterate
34 * @evsel: struct perf_evsel iterator
35 */
36#define __perf_evlist__for_each_entry(list, evsel) \
37	list_for_each_entry(evsel, list, node)
38
39/**
40 * evlist__for_each_entry - iterate thru all the evsels
41 * @evlist: perf_evlist instance to iterate
42 * @evsel: struct perf_evsel iterator
43 */
44#define perf_evlist__for_each_entry(evlist, evsel) \
45	__perf_evlist__for_each_entry(&(evlist)->entries, evsel)
46
47/**
48 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
49 * @list: list_head instance to iterate
50 * @evsel: struct evsel iterator
51 */
52#define __perf_evlist__for_each_entry_reverse(list, evsel) \
53	list_for_each_entry_reverse(evsel, list, node)
54
55/**
56 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
57 * @evlist: evlist instance to iterate
58 * @evsel: struct evsel iterator
59 */
60#define perf_evlist__for_each_entry_reverse(evlist, evsel) \
61	__perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
62
63static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
64{
65	return list_entry(evlist->entries.next, struct perf_evsel, node);
66}
67
68static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
69{
70	return list_entry(evlist->entries.prev, struct perf_evsel, node);
71}
72
73u64 perf_evlist__read_format(struct perf_evlist *evlist);
74
75void perf_evlist__id_add(struct perf_evlist *evlist,
76			 struct perf_evsel *evsel,
77			 int cpu, int thread, u64 id);
78
79int perf_evlist__id_add_fd(struct perf_evlist *evlist,
80			   struct perf_evsel *evsel,
81			   int cpu, int thread, int fd);
82
83#endif /* __LIBPERF_INTERNAL_EVLIST_H */