summaryrefslogtreecommitdiff
path: root/tools/lib/perf/include/internal/evlist.h
blob: 212c29063ad42ccc7891e5e17446ef6ab1827ef9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LIBPERF_INTERNAL_EVLIST_H
#define __LIBPERF_INTERNAL_EVLIST_H

#include <linux/list.h>
#include <api/fd/array.h>
#include <internal/evsel.h>

#define PERF_EVLIST__HLIST_BITS 8
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)

struct perf_cpu_map;
struct perf_thread_map;
struct perf_mmap_param;

struct perf_evlist {
	struct list_head	 entries;
	int			 nr_entries;
	bool			 has_user_cpus;
	struct perf_cpu_map	*cpus;
	struct perf_cpu_map	*all_cpus;
	struct perf_thread_map	*threads;
	int			 nr_mmaps;
	size_t			 mmap_len;
	struct fdarray		 pollfd;
	struct hlist_head	 heads[PERF_EVLIST__HLIST_SIZE];
	struct perf_mmap	*mmap;
	struct perf_mmap	*mmap_ovw;
	struct perf_mmap	*mmap_first;
	struct perf_mmap	*mmap_ovw_first;
};

typedef void
(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool);
typedef struct perf_mmap*
(*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
typedef int
(*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, int);

struct perf_evlist_mmap_ops {
	perf_evlist_mmap__cb_idx_t	idx;
	perf_evlist_mmap__cb_get_t	get;
	perf_evlist_mmap__cb_mmap_t	mmap;
};

int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
			    void *ptr, short revent, enum fdarray_flags flags);

int perf_evlist__mmap_ops(struct perf_evlist *evlist,
			  struct perf_evlist_mmap_ops *ops,
			  struct perf_mmap_param *mp);

void perf_evlist__init(struct perf_evlist *evlist);
void perf_evlist__exit(struct perf_evlist *evlist);

/**
 * __perf_evlist__for_each_entry - iterate thru all the evsels
 * @list: list_head instance to iterate
 * @evsel: struct perf_evsel iterator
 */
#define __perf_evlist__for_each_entry(list, evsel) \
	list_for_each_entry(evsel, list, node)

/**
 * evlist__for_each_entry - iterate thru all the evsels
 * @evlist: perf_evlist instance to iterate
 * @evsel: struct perf_evsel iterator
 */
#define perf_evlist__for_each_entry(evlist, evsel) \
	__perf_evlist__for_each_entry(&(evlist)->entries, evsel)

/**
 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
 * @list: list_head instance to iterate
 * @evsel: struct evsel iterator
 */
#define __perf_evlist__for_each_entry_reverse(list, evsel) \
	list_for_each_entry_reverse(evsel, list, node)

/**
 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
 * @evlist: evlist instance to iterate
 * @evsel: struct evsel iterator
 */
#define perf_evlist__for_each_entry_reverse(evlist, evsel) \
	__perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel)

/**
 * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
 * @list: list_head instance to iterate
 * @tmp: struct evsel temp iterator
 * @evsel: struct evsel iterator
 */
#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \
	list_for_each_entry_safe(evsel, tmp, list, node)

/**
 * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels
 * @evlist: evlist instance to iterate
 * @evsel: struct evsel iterator
 * @tmp: struct evsel temp iterator
 */
#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \
	__perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)

static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
{
	return list_entry(evlist->entries.next, struct perf_evsel, node);
}

static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
{
	return list_entry(evlist->entries.prev, struct perf_evsel, node);
}

u64 perf_evlist__read_format(struct perf_evlist *evlist);

void perf_evlist__id_add(struct perf_evlist *evlist,
			 struct perf_evsel *evsel,
			 int cpu, int thread, u64 id);

int perf_evlist__id_add_fd(struct perf_evlist *evlist,
			   struct perf_evsel *evsel,
			   int cpu, int thread, int fd);

void perf_evlist__reset_id_hash(struct perf_evlist *evlist);

#endif /* __LIBPERF_INTERNAL_EVLIST_H */