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__empty_new(int nr); 19 struct cpu_map *cpu_map__dummy_new(void); 20 struct cpu_map *cpu_map__read(FILE *file); 21 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp); 22 int cpu_map__get_socket_id(int cpu); 23 int cpu_map__get_socket(struct cpu_map *map, int idx, void *data); 24 int cpu_map__get_core_id(int cpu); 25 int cpu_map__get_core(struct cpu_map *map, int idx, void *data); 26 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); 27 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); 28 29 struct cpu_map *cpu_map__get(struct cpu_map *map); 30 void cpu_map__put(struct cpu_map *map); 31 32 static inline int cpu_map__socket(struct cpu_map *sock, int s) 33 { 34 if (!sock || s > sock->nr || s < 0) 35 return 0; 36 return sock->map[s]; 37 } 38 39 static inline int cpu_map__id_to_socket(int id) 40 { 41 return id >> 16; 42 } 43 44 static inline int cpu_map__id_to_cpu(int id) 45 { 46 return id & 0xffff; 47 } 48 49 static inline int cpu_map__nr(const struct cpu_map *map) 50 { 51 return map ? map->nr : 1; 52 } 53 54 static inline bool cpu_map__empty(const struct cpu_map *map) 55 { 56 return map ? map->map[0] == -1 : true; 57 } 58 59 int max_cpu_num; 60 int max_node_num; 61 int *cpunode_map; 62 63 int cpu__setup_cpunode_map(void); 64 65 static inline int cpu__max_node(void) 66 { 67 if (unlikely(!max_node_num)) 68 pr_debug("cpu_map not initialized\n"); 69 70 return max_node_num; 71 } 72 73 static inline int cpu__max_cpu(void) 74 { 75 if (unlikely(!max_cpu_num)) 76 pr_debug("cpu_map not initialized\n"); 77 78 return max_cpu_num; 79 } 80 81 static inline int cpu__get_node(int cpu) 82 { 83 if (unlikely(cpunode_map == NULL)) { 84 pr_debug("cpu_map not initialized\n"); 85 return -1; 86 } 87 88 return cpunode_map[cpu]; 89 } 90 91 int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, 92 int (*f)(struct cpu_map *map, int cpu, void *data), 93 void *data); 94 #endif /* __PERF_CPUMAP_H */ 95