tools/perf/util/cpumap.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_CPUMAP_H
   3 #define __PERF_CPUMAP_H
   4
   5 #include <stdio.h>
   6 #include <stdbool.h>
   7 #include <linux/refcount.h>
   8
   9 #include "perf.h"
  10 #include "util/debug.h"
  11
  12 struct cpu_map {
  13         refcount_t refcnt;
  14         int nr;
  15         int map[];
  16 };
  17
  18 struct cpu_map *cpu_map__new(const char *cpu_list);
  19 struct cpu_map *cpu_map__empty_new(int nr);
  20 struct cpu_map *cpu_map__dummy_new(void);
  21 struct cpu_map *cpu_map__new_data(struct cpu_map_data *data);
  22 struct cpu_map *cpu_map__read(FILE *file);
  23 size_t cpu_map__snprint(struct cpu_map *map, char *buf, size_t size);
  24 size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size);
  25 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
  26 int cpu_map__get_socket_id(int cpu);
  27 int cpu_map__get_socket(struct cpu_map *map, int idx, void *data);
  28 int cpu_map__get_core_id(int cpu);
  29 int cpu_map__get_core(struct cpu_map *map, int idx, void *data);
  30 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
  31 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
  32
  33 struct cpu_map *cpu_map__get(struct cpu_map *map);
  34 void cpu_map__put(struct cpu_map *map);
  35
  36 static inline int cpu_map__socket(struct cpu_map *sock, int s)
  37 {
  38         if (!sock || s > sock->nr || s < 0)
  39                 return 0;
  40         return sock->map[s];
  41 }
  42
  43 static inline int cpu_map__id_to_socket(int id)
  44 {
  45         return id >> 16;
  46 }
  47
  48 static inline int cpu_map__id_to_cpu(int id)
  49 {
  50         return id & 0xffff;
  51 }
  52
  53 static inline int cpu_map__nr(const struct cpu_map *map)
  54 {
  55         return map ? map->nr : 1;
  56 }
  57
  58 static inline bool cpu_map__empty(const struct cpu_map *map)
  59 {
  60         return map ? map->map[0] == -1 : true;
  61 }
  62
  63 int cpu__setup_cpunode_map(void);
  64
  65 int cpu__max_node(void);
  66 int cpu__max_cpu(void);
  67 int cpu__max_present_cpu(void);
  68 int cpu__get_node(int cpu);
  69
  70 int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
  71                        int (*f)(struct cpu_map *map, int cpu, void *data),
  72                        void *data);
  73
  74 int cpu_map__cpu(struct cpu_map *cpus, int idx);
  75 bool cpu_map__has(struct cpu_map *cpus, int cpu);
  76 int cpu_map__idx(struct cpu_map *cpus, int cpu);
  77 #endif /* __PERF_CPUMAP_H */