1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_CPUMAP_H 3 #define __PERF_CPUMAP_H 4 5 #include <stdio.h> 6 #include <stdbool.h> 7 #include <linux/refcount.h> 8 9 #include "perf.h" 10 #include "util/debug.h" 11 12 struct cpu_map { 13 refcount_t refcnt; 14 int nr; 15 int map[]; 16 }; 17 18 struct cpu_map *cpu_map__new(const char *cpu_list); 19 struct cpu_map *cpu_map__empty_new(int nr); 20 struct cpu_map *cpu_map__dummy_new(void); 21 struct cpu_map *cpu_map__new_data(struct cpu_map_data *data); 22 struct cpu_map *cpu_map__read(FILE *file); 23 size_t cpu_map__snprint(struct cpu_map *map, char *buf, size_t size); 24 size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size); 25 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp); 26 int cpu_map__get_socket_id(int cpu); 27 int cpu_map__get_socket(struct cpu_map *map, int idx, void *data); 28 int cpu_map__get_die_id(int cpu); 29 int cpu_map__get_die(struct cpu_map *map, int idx, void *data); 30 int cpu_map__get_core_id(int cpu); 31 int cpu_map__get_core(struct cpu_map *map, int idx, void *data); 32 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); 33 int cpu_map__build_die_map(struct cpu_map *cpus, struct cpu_map **diep); 34 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); 35 const struct cpu_map *cpu_map__online(void); /* thread unsafe */ 36 37 struct cpu_map *cpu_map__get(struct cpu_map *map); 38 void cpu_map__put(struct cpu_map *map); 39 40 static inline int cpu_map__socket(struct cpu_map *sock, int s) 41 { 42 if (!sock || s > sock->nr || s < 0) 43 return 0; 44 return sock->map[s]; 45 } 46 47 static inline int cpu_map__id_to_socket(int id) 48 { 49 return id >> 24; 50 } 51 52 static inline int cpu_map__id_to_die(int id) 53 { 54 return (id >> 16) & 0xff; 55 } 56 57 static inline int cpu_map__id_to_cpu(int id) 58 { 59 return id & 0xffff; 60 } 61 62 static inline int cpu_map__nr(const struct cpu_map *map) 63 { 64 return map ? map->nr : 1; 65 } 66 67 static inline bool cpu_map__empty(const struct cpu_map *map) 68 { 69 return map ? map->map[0] == -1 : true; 70 } 71 72 int cpu__setup_cpunode_map(void); 73 74 int cpu__max_node(void); 75 int cpu__max_cpu(void); 76 int cpu__max_present_cpu(void); 77 int cpu__get_node(int cpu); 78 79 int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, 80 int (*f)(struct cpu_map *map, int cpu, void *data), 81 void *data); 82 83 int cpu_map__cpu(struct cpu_map *cpus, int idx); 84 bool cpu_map__has(struct cpu_map *cpus, int cpu); 85 int cpu_map__idx(struct cpu_map *cpus, int cpu); 86 #endif /* __PERF_CPUMAP_H */ 87