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Linux kernel mirror (for testing)
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kernel
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linux
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
12struct cpu_map {
13 refcount_t refcnt;
14 int nr;
15 int map[];
16};
17
18struct cpu_map *cpu_map__new(const char *cpu_list);
19struct cpu_map *cpu_map__empty_new(int nr);
20struct cpu_map *cpu_map__dummy_new(void);
21struct cpu_map *cpu_map__new_data(struct cpu_map_data *data);
22struct cpu_map *cpu_map__read(FILE *file);
23size_t cpu_map__snprint(struct cpu_map *map, char *buf, size_t size);
24size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size);
25size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
26int cpu_map__get_socket_id(int cpu);
27int cpu_map__get_socket(struct cpu_map *map, int idx, void *data);
28int cpu_map__get_core_id(int cpu);
29int cpu_map__get_core(struct cpu_map *map, int idx, void *data);
30int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
31int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
32const struct cpu_map *cpu_map__online(void); /* thread unsafe */
33
34struct cpu_map *cpu_map__get(struct cpu_map *map);
35void cpu_map__put(struct cpu_map *map);
36
37static inline int cpu_map__socket(struct cpu_map *sock, int s)
38{
39 if (!sock || s > sock->nr || s < 0)
40 return 0;
41 return sock->map[s];
42}
43
44static inline int cpu_map__id_to_socket(int id)
45{
46 return id >> 16;
47}
48
49static inline int cpu_map__id_to_cpu(int id)
50{
51 return id & 0xffff;
52}
53
54static inline int cpu_map__nr(const struct cpu_map *map)
55{
56 return map ? map->nr : 1;
57}
58
59static inline bool cpu_map__empty(const struct cpu_map *map)
60{
61 return map ? map->map[0] == -1 : true;
62}
63
64int cpu__setup_cpunode_map(void);
65
66int cpu__max_node(void);
67int cpu__max_cpu(void);
68int cpu__max_present_cpu(void);
69int cpu__get_node(int cpu);
70
71int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
72 int (*f)(struct cpu_map *map, int cpu, void *data),
73 void *data);
74
75int cpu_map__cpu(struct cpu_map *cpus, int idx);
76bool cpu_map__has(struct cpu_map *cpus, int cpu);
77int cpu_map__idx(struct cpu_map *cpus, int cpu);
78#endif /* __PERF_CPUMAP_H */