xref: /linux/tools/perf/util/cpumap.h (revision 9a6b55ac)
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 <internal/cpumap.h>
8 #include <perf/cpumap.h>
9 
10 struct perf_record_cpu_map_data;
11 
12 struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
13 struct perf_cpu_map *cpu_map__new_data(struct perf_record_cpu_map_data *data);
14 size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size);
15 size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size);
16 size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp);
17 int cpu_map__get_socket_id(int cpu);
18 int cpu_map__get_socket(struct perf_cpu_map *map, int idx, void *data);
19 int cpu_map__get_die_id(int cpu);
20 int cpu_map__get_die(struct perf_cpu_map *map, int idx, void *data);
21 int cpu_map__get_core_id(int cpu);
22 int cpu_map__get_core(struct perf_cpu_map *map, int idx, void *data);
23 int cpu_map__get_node_id(int cpu);
24 int cpu_map__get_node(struct perf_cpu_map *map, int idx, void *data);
25 int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct perf_cpu_map **sockp);
26 int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct perf_cpu_map **diep);
27 int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct perf_cpu_map **corep);
28 int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct perf_cpu_map **nodep);
29 const struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */
30 
31 static inline int cpu_map__socket(struct perf_cpu_map *sock, int s)
32 {
33 	if (!sock || s > sock->nr || s < 0)
34 		return 0;
35 	return sock->map[s];
36 }
37 
38 static inline int cpu_map__id_to_socket(int id)
39 {
40 	return id >> 24;
41 }
42 
43 static inline int cpu_map__id_to_die(int id)
44 {
45 	return (id >> 16) & 0xff;
46 }
47 
48 static inline int cpu_map__id_to_cpu(int id)
49 {
50 	return id & 0xffff;
51 }
52 
53 int cpu__setup_cpunode_map(void);
54 
55 int cpu__max_node(void);
56 int cpu__max_cpu(void);
57 int cpu__max_present_cpu(void);
58 int cpu__get_node(int cpu);
59 
60 int cpu_map__build_map(struct perf_cpu_map *cpus, struct perf_cpu_map **res,
61 		       int (*f)(struct perf_cpu_map *map, int cpu, void *data),
62 		       void *data);
63 
64 int cpu_map__cpu(struct perf_cpu_map *cpus, int idx);
65 bool cpu_map__has(struct perf_cpu_map *cpus, int cpu);
66 
67 #endif /* __PERF_CPUMAP_H */
68