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 13 struct perf_cpu_map; 14 struct perf_thread_map; 15 struct perf_mmap_param; 16 17 struct perf_evlist { 18 struct list_head entries; 19 int nr_entries; 20 bool has_user_cpus; 21 bool needs_map_propagation; 22 /** 23 * The cpus passed from the command line or all online CPUs by 24 * default. 25 */ 26 struct perf_cpu_map *user_requested_cpus; 27 /** The union of all evsel cpu maps. */ 28 struct perf_cpu_map *all_cpus; 29 struct perf_thread_map *threads; 30 int nr_mmaps; 31 size_t mmap_len; 32 struct fdarray pollfd; 33 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE]; 34 struct perf_mmap *mmap; 35 struct perf_mmap *mmap_ovw; 36 struct perf_mmap *mmap_first; 37 struct perf_mmap *mmap_ovw_first; 38 }; 39 40 typedef void 41 (*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_evsel*, 42 struct perf_mmap_param*, int); 43 typedef struct perf_mmap* 44 (*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int); 45 typedef int 46 (*perf_evlist_mmap__cb_mmap_t)(struct perf_mmap*, struct perf_mmap_param*, int, struct perf_cpu); 47 48 struct perf_evlist_mmap_ops { 49 perf_evlist_mmap__cb_idx_t idx; 50 perf_evlist_mmap__cb_get_t get; 51 perf_evlist_mmap__cb_mmap_t mmap; 52 }; 53 54 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); 55 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, 56 void *ptr, short revent, enum fdarray_flags flags); 57 58 int perf_evlist__mmap_ops(struct perf_evlist *evlist, 59 struct perf_evlist_mmap_ops *ops, 60 struct perf_mmap_param *mp); 61 62 void perf_evlist__init(struct perf_evlist *evlist); 63 void perf_evlist__exit(struct perf_evlist *evlist); 64 65 /** 66 * __perf_evlist__for_each_entry - iterate thru all the evsels 67 * @list: list_head instance to iterate 68 * @evsel: struct perf_evsel iterator 69 */ 70 #define __perf_evlist__for_each_entry(list, evsel) \ 71 list_for_each_entry(evsel, list, node) 72 73 /** 74 * evlist__for_each_entry - iterate thru all the evsels 75 * @evlist: perf_evlist instance to iterate 76 * @evsel: struct perf_evsel iterator 77 */ 78 #define perf_evlist__for_each_entry(evlist, evsel) \ 79 __perf_evlist__for_each_entry(&(evlist)->entries, evsel) 80 81 /** 82 * __perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order 83 * @list: list_head instance to iterate 84 * @evsel: struct evsel iterator 85 */ 86 #define __perf_evlist__for_each_entry_reverse(list, evsel) \ 87 list_for_each_entry_reverse(evsel, list, node) 88 89 /** 90 * perf_evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order 91 * @evlist: evlist instance to iterate 92 * @evsel: struct evsel iterator 93 */ 94 #define perf_evlist__for_each_entry_reverse(evlist, evsel) \ 95 __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel) 96 97 /** 98 * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels 99 * @list: list_head instance to iterate 100 * @tmp: struct evsel temp iterator 101 * @evsel: struct evsel iterator 102 */ 103 #define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \ 104 list_for_each_entry_safe(evsel, tmp, list, node) 105 106 /** 107 * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels 108 * @evlist: evlist instance to iterate 109 * @evsel: struct evsel iterator 110 * @tmp: struct evsel temp iterator 111 */ 112 #define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \ 113 __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel) 114 115 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) 116 { 117 return list_entry(evlist->entries.next, struct perf_evsel, node); 118 } 119 120 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist) 121 { 122 return list_entry(evlist->entries.prev, struct perf_evsel, node); 123 } 124 125 u64 perf_evlist__read_format(struct perf_evlist *evlist); 126 127 void perf_evlist__id_add(struct perf_evlist *evlist, 128 struct perf_evsel *evsel, 129 int cpu, int thread, u64 id); 130 131 int perf_evlist__id_add_fd(struct perf_evlist *evlist, 132 struct perf_evsel *evsel, 133 int cpu, int thread, int fd); 134 135 void perf_evlist__reset_id_hash(struct perf_evlist *evlist); 136 137 void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader); 138 139 void perf_evlist__go_system_wide(struct perf_evlist *evlist, struct perf_evsel *evsel); 140 #endif /* __LIBPERF_INTERNAL_EVLIST_H */ 141