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 #include "perf.h"
   8 #include "util/debug.h"
   9
  10 struct cpu_map {
  11         int nr;
  12         int map[];
  13 };
  14
  15 struct cpu_map *cpu_map__new(const char *cpu_list);
  16 struct cpu_map *cpu_map__dummy_new(void);
  17 void cpu_map__delete(struct cpu_map *map);
  18 struct cpu_map *cpu_map__read(FILE *file);
  19 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
  20 int cpu_map__get_socket(struct cpu_map *map, int idx);
  21 int cpu_map__get_core(struct cpu_map *map, int idx);
  22 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
  23 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
  24
  25 static inline int cpu_map__socket(struct cpu_map *sock, int s)
  26 {
  27         if (!sock || s > sock->nr || s < 0)
  28                 return 0;
  29         return sock->map[s];
  30 }
  31
  32 static inline int cpu_map__id_to_socket(int id)
  33 {
  34         return id >> 16;
  35 }
  36
  37 static inline int cpu_map__id_to_cpu(int id)
  38 {
  39         return id & 0xffff;
  40 }
  41
  42 static inline int cpu_map__nr(const struct cpu_map *map)
  43 {
  44         return map ? map->nr : 1;
  45 }
  46
  47 static inline bool cpu_map__empty(const struct cpu_map *map)
  48 {
  49         return map ? map->map[0] == -1 : true;
  50 }
  51
  52 int max_cpu_num;
  53 int max_node_num;
  54 int *cpunode_map;
  55
  56 int cpu__setup_cpunode_map(void);
  57
  58 static inline int cpu__max_node(void)
  59 {
  60         if (unlikely(!max_node_num))
  61                 pr_debug("cpu_map not initialized\n");
  62
  63         return max_node_num;
  64 }
  65
  66 static inline int cpu__max_cpu(void)
  67 {
  68         if (unlikely(!max_cpu_num))
  69                 pr_debug("cpu_map not initialized\n");
  70
  71         return max_cpu_num;
  72 }
  73
  74 static inline int cpu__get_node(int cpu)
  75 {
  76         if (unlikely(cpunode_map == NULL)) {
  77                 pr_debug("cpu_map not initialized\n");
  78                 return -1;
  79         }
  80
  81         return cpunode_map[cpu];
  82 }
  83
  84 #endif /* __PERF_CPUMAP_H */