1 #ifndef __PERF_CPUMAP_H 2 #define __PERF_CPUMAP_H 3 4 #include <stdio.h> 5 #include <stdbool.h> 6 #include <linux/atomic.h> 7 8 #include "perf.h" 9 #include "util/debug.h" 10 11 struct cpu_map { 12 atomic_t refcnt; 13 int nr; 14 int map[]; 15 }; 16 17 struct cpu_map *cpu_map__new(const char *cpu_list); 18 struct cpu_map *cpu_map__dummy_new(void); 19 struct cpu_map *cpu_map__read(FILE *file); 20 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp); 21 int cpu_map__get_socket(struct cpu_map *map, int idx); 22 int cpu_map__get_core(struct cpu_map *map, int idx); 23 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); 24 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); 25 26 struct cpu_map *cpu_map__get(struct cpu_map *map); 27 void cpu_map__put(struct cpu_map *map); 28 29 static inline int cpu_map__socket(struct cpu_map *sock, int s) 30 { 31 if (!sock || s > sock->nr || s < 0) 32 return 0; 33 return sock->map[s]; 34 } 35 36 static inline int cpu_map__id_to_socket(int id) 37 { 38 return id >> 16; 39 } 40 41 static inline int cpu_map__id_to_cpu(int id) 42 { 43 return id & 0xffff; 44 } 45 46 static inline int cpu_map__nr(const struct cpu_map *map) 47 { 48 return map ? map->nr : 1; 49 } 50 51 static inline bool cpu_map__empty(const struct cpu_map *map) 52 { 53 return map ? map->map[0] == -1 : true; 54 } 55 56 int max_cpu_num; 57 int max_node_num; 58 int *cpunode_map; 59 60 int cpu__setup_cpunode_map(void); 61 62 static inline int cpu__max_node(void) 63 { 64 if (unlikely(!max_node_num)) 65 pr_debug("cpu_map not initialized\n"); 66 67 return max_node_num; 68 } 69 70 static inline int cpu__max_cpu(void) 71 { 72 if (unlikely(!max_cpu_num)) 73 pr_debug("cpu_map not initialized\n"); 74 75 return max_cpu_num; 76 } 77 78 static inline int cpu__get_node(int cpu) 79 { 80 if (unlikely(cpunode_map == NULL)) { 81 pr_debug("cpu_map not initialized\n"); 82 return -1; 83 } 84 85 return cpunode_map[cpu]; 86 } 87 88 #endif /* __PERF_CPUMAP_H */ 89