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Linux kernel mirror (for testing)
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kernel
os
linux
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
11struct cpu_map {
12 atomic_t refcnt;
13 int nr;
14 int map[];
15};
16
17struct cpu_map *cpu_map__new(const char *cpu_list);
18struct cpu_map *cpu_map__dummy_new(void);
19struct cpu_map *cpu_map__read(FILE *file);
20size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
21int cpu_map__get_socket(struct cpu_map *map, int idx);
22int cpu_map__get_core(struct cpu_map *map, int idx);
23int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
24int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
25
26struct cpu_map *cpu_map__get(struct cpu_map *map);
27void cpu_map__put(struct cpu_map *map);
28
29static inline int cpu_map__socket(struct cpu_map *sock, int s)
30{
31 if (!sock || s > sock->nr || s < 0)
32 return 0;
33 return sock->map[s];
34}
35
36static inline int cpu_map__id_to_socket(int id)
37{
38 return id >> 16;
39}
40
41static inline int cpu_map__id_to_cpu(int id)
42{
43 return id & 0xffff;
44}
45
46static inline int cpu_map__nr(const struct cpu_map *map)
47{
48 return map ? map->nr : 1;
49}
50
51static inline bool cpu_map__empty(const struct cpu_map *map)
52{
53 return map ? map->map[0] == -1 : true;
54}
55
56int max_cpu_num;
57int max_node_num;
58int *cpunode_map;
59
60int cpu__setup_cpunode_map(void);
61
62static inline int cpu__max_node(void)
63{
64 if (unlikely(!max_node_num))
65 pr_debug("cpu_map not initialized\n");
66
67 return max_node_num;
68}
69
70static inline int cpu__max_cpu(void)
71{
72 if (unlikely(!max_cpu_num))
73 pr_debug("cpu_map not initialized\n");
74
75 return max_cpu_num;
76}
77
78static inline int cpu__get_node(int cpu)
79{
80 if (unlikely(cpunode_map == NULL)) {
81 pr_debug("cpu_map not initialized\n");
82 return -1;
83 }
84
85 return cpunode_map[cpu];
86}
87
88#endif /* __PERF_CPUMAP_H */