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
12 struct perf_cpu_map;
13 struct perf_thread_map;
14 struct perf_mmap_param;
15
16 struct 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
34 typedef void
35 (*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int, bool);
36 typedef struct perf_mmap*
37 (*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
38 typedef int
39 (*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, int);
40
41 struct 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
47 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
48 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
49 void *ptr, short revent, enum fdarray_flags flags);
50
51 int perf_evlist__mmap_ops(struct perf_evlist *evlist,
52 struct perf_evlist_mmap_ops *ops,
53 struct perf_mmap_param *mp);
54
55 void perf_evlist__init(struct perf_evlist *evlist);
56 void 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
perf_evlist__first(struct perf_evlist * evlist)108 static 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
perf_evlist__last(struct perf_evlist * evlist)113 static 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
118 u64 perf_evlist__read_format(struct perf_evlist *evlist);
119
120 void perf_evlist__id_add(struct perf_evlist *evlist,
121 struct perf_evsel *evsel,
122 int cpu, int thread, u64 id);
123
124 int perf_evlist__id_add_fd(struct perf_evlist *evlist,
125 struct perf_evsel *evsel,
126 int cpu, int thread, int fd);
127
128 void perf_evlist__reset_id_hash(struct perf_evlist *evlist);
129
130 void __perf_evlist__set_leader(struct list_head *list);
131 #endif /* __LIBPERF_INTERNAL_EVLIST_H */
132
