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TOMOYO Linux Cross Reference
Linux/tools/perf/util/cpumap.h

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  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 

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