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_core_id(int cpu); 29 int cpu_map__get_core(struct cpu_map *map, int idx, void *data); 30 int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); 31 int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); 32 33 struct cpu_map *cpu_map__get(struct cpu_map *map); 34 void cpu_map__put(struct cpu_map *map); 35 36 static inline int cpu_map__socket(struct cpu_map *sock, int s) 37 { 38 if (!sock || s > sock->nr || s < 0) 39 return 0; 40 return sock->map[s]; 41 } 42 43 static inline int cpu_map__id_to_socket(int id) 44 { 45 return id >> 16; 46 } 47 48 static inline int cpu_map__id_to_cpu(int id) 49 { 50 return id & 0xffff; 51 } 52 53 static inline int cpu_map__nr(const struct cpu_map *map) 54 { 55 return map ? map->nr : 1; 56 } 57 58 static inline bool cpu_map__empty(const struct cpu_map *map) 59 { 60 return map ? map->map[0] == -1 : true; 61 } 62 63 int cpu__setup_cpunode_map(void); 64 65 int cpu__max_node(void); 66 int cpu__max_cpu(void); 67 int cpu__max_present_cpu(void); 68 int cpu__get_node(int cpu); 69 70 int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, 71 int (*f)(struct cpu_map *map, int cpu, void *data), 72 void *data); 73 74 int cpu_map__cpu(struct cpu_map *cpus, int idx); 75 bool cpu_map__has(struct cpu_map *cpus, int cpu); 76 int cpu_map__idx(struct cpu_map *cpus, int cpu); 77 #endif /* __PERF_CPUMAP_H */ 78