LXR linux/tools/lib/perf/include/internal/evlist.h

   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 */
 132