tools/perf/util/cpumap.h

   1 #ifndef __PERF_CPUMAP_H
   2 #define __PERF_CPUMAP_H
   3
   4 #include <stdio.h>
   5 #include <stdbool.h>
   6
   7 struct cpu_map {
   8         int nr;
   9         int map[];
  10 };
  11
  12 struct cpu_map *cpu_map__new(const char *cpu_list);
  13 struct cpu_map *cpu_map__dummy_new(void);
  14 void cpu_map__delete(struct cpu_map *map);
  15 struct cpu_map *cpu_map__read(FILE *file);
  16 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
  17 int cpu_map__get_socket(struct cpu_map *map, int idx);
  18 int cpu_map__get_core(struct cpu_map *map, int idx);
  19 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
  20 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
  21
  22 static inline int cpu_map__socket(struct cpu_map *sock, int s)
  23 {
  24         if (!sock || s > sock->nr || s < 0)
  25                 return 0;
  26         return sock->map[s];
  27 }
  28
  29 static inline int cpu_map__id_to_socket(int id)
  30 {
  31         return id >> 16;
  32 }
  33
  34 static inline int cpu_map__id_to_cpu(int id)
  35 {
  36         return id & 0xffff;
  37 }
  38
  39 static inline int cpu_map__nr(const struct cpu_map *map)
  40 {
  41         return map ? map->nr : 1;
  42 }
  43
  44 static inline bool cpu_map__empty(const struct cpu_map *map)
  45 {
  46         return map ? map->map[0] == -1 : true;
  47 }
  48
  49 #endif /* __PERF_CPUMAP_H */