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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 
cpu_map__socket(struct cpu_map * sock,int s)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 
cpu_map__id_to_socket(int id)39 static inline int cpu_map__id_to_socket(int id)
40 {
41 	return id >> 16;
42 }
43 
cpu_map__id_to_cpu(int id)44 static inline int cpu_map__id_to_cpu(int id)
45 {
46 	return id & 0xffff;
47 }
48 
cpu_map__nr(const struct cpu_map * map)49 static inline int cpu_map__nr(const struct cpu_map *map)
50 {
51 	return map ? map->nr : 1;
52 }
53 
cpu_map__empty(const struct cpu_map * map)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 
cpu__max_node(void)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 
cpu__max_cpu(void)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 
cpu__get_node(int cpu)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