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_id(int cpu); 22 int cpu_map__get_socket(struct cpu_map *map, int idx); 23 int cpu_map__get_core_id(int cpu); 24 int cpu_map__get_core(struct cpu_map *map, int idx); 25 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); 26 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); 27 28 struct cpu_map *cpu_map__get(struct cpu_map *map); 29 void cpu_map__put(struct cpu_map *map); 30 31 static inline int cpu_map__socket(struct cpu_map *sock, int s) 32 { 33 if (!sock || s > sock->nr || s < 0) 34 return 0; 35 return sock->map[s]; 36 } 37 38 static inline int cpu_map__id_to_socket(int id) 39 { 40 return id >> 16; 41 } 42 43 static inline int cpu_map__id_to_cpu(int id) 44 { 45 return id & 0xffff; 46 } 47 48 static inline int cpu_map__nr(const struct cpu_map *map) 49 { 50 return map ? map->nr : 1; 51 } 52 53 static inline bool cpu_map__empty(const struct cpu_map *map) 54 { 55 return map ? map->map[0] == -1 : true; 56 } 57 58 int max_cpu_num; 59 int max_node_num; 60 int *cpunode_map; 61 62 int cpu__setup_cpunode_map(void); 63 64 static inline int cpu__max_node(void) 65 { 66 if (unlikely(!max_node_num)) 67 pr_debug("cpu_map not initialized\n"); 68 69 return max_node_num; 70 } 71 72 static inline int cpu__max_cpu(void) 73 { 74 if (unlikely(!max_cpu_num)) 75 pr_debug("cpu_map not initialized\n"); 76 77 return max_cpu_num; 78 } 79 80 static inline int cpu__get_node(int cpu) 81 { 82 if (unlikely(cpunode_map == NULL)) { 83 pr_debug("cpu_map not initialized\n"); 84 return -1; 85 } 86 87 return cpunode_map[cpu]; 88 } 89 90 #endif /* __PERF_CPUMAP_H */ 91