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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
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);
32
33struct cpu_map *cpu_map__get(struct cpu_map *map);
34void cpu_map__put(struct cpu_map *map);
35
36static 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
43static inline int cpu_map__id_to_socket(int id)
44{
45 return id >> 16;
46}
47
48static inline int cpu_map__id_to_cpu(int id)
49{
50 return id & 0xffff;
51}
52
53static inline int cpu_map__nr(const struct cpu_map *map)
54{
55 return map ? map->nr : 1;
56}
57
58static inline bool cpu_map__empty(const struct cpu_map *map)
59{
60 return map ? map->map[0] == -1 : true;
61}
62
63int cpu__setup_cpunode_map(void);
64
65int cpu__max_node(void);
66int cpu__max_cpu(void);
67int cpu__max_present_cpu(void);
68int cpu__get_node(int cpu);
69
70int 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
74int cpu_map__cpu(struct cpu_map *cpus, int idx);
75bool cpu_map__has(struct cpu_map *cpus, int cpu);
76int cpu_map__idx(struct cpu_map *cpus, int cpu);
77#endif /* __PERF_CPUMAP_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_CPUMAP_H
3#define __PERF_CPUMAP_H
4
5#include <stdbool.h>
6#include <stdio.h>
7#include <perf/cpumap.h>
8#include <linux/refcount.h>
9
10/** Identify where counts are aggregated, -1 implies not to aggregate. */
11struct aggr_cpu_id {
12 /** A value in the range 0 to number of threads. */
13 int thread_idx;
14 /** The numa node X as read from /sys/devices/system/node/nodeX. */
15 int node;
16 /**
17 * The socket number as read from
18 * /sys/devices/system/cpu/cpuX/topology/physical_package_id.
19 */
20 int socket;
21 /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
22 int die;
23 /** The cluster id as read from /sys/devices/system/cpu/cpuX/topology/cluster_id */
24 int cluster;
25 /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */
26 int cache_lvl;
27 /**
28 * The cache instance ID, which is the first CPU in the
29 * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list
30 */
31 int cache;
32 /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
33 int core;
34 /** CPU aggregation, note there is one CPU for each SMT thread. */
35 struct perf_cpu cpu;
36};
37
38/** A collection of aggr_cpu_id values, the "built" version is sorted and uniqued. */
39struct cpu_aggr_map {
40 refcount_t refcnt;
41 /** Number of valid entries. */
42 int nr;
43 /** The entries. */
44 struct aggr_cpu_id map[];
45};
46
47#define cpu_aggr_map__for_each_idx(idx, aggr_map) \
48 for ((idx) = 0; (idx) < aggr_map->nr; (idx)++)
49
50struct perf_record_cpu_map_data;
51
52bool perf_record_cpu_map_data__test_bit(int i, const struct perf_record_cpu_map_data *data);
53
54struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
55
56struct perf_cpu_map *cpu_map__new_data(const struct perf_record_cpu_map_data *data);
57size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size);
58size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size);
59size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp);
60struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */
61
62int cpu__setup_cpunode_map(void);
63
64int cpu__max_node(void);
65struct perf_cpu cpu__max_cpu(void);
66struct perf_cpu cpu__max_present_cpu(void);
67
68/**
69 * cpu_map__is_dummy - Events associated with a pid, rather than a CPU, use a single dummy map with an entry of -1.
70 */
71static inline bool cpu_map__is_dummy(const struct perf_cpu_map *cpus)
72{
73 return perf_cpu_map__nr(cpus) == 1 && perf_cpu_map__cpu(cpus, 0).cpu == -1;
74}
75
76/**
77 * cpu__get_node - Returns the numa node X as read from
78 * /sys/devices/system/node/nodeX for the given CPU.
79 */
80int cpu__get_node(struct perf_cpu cpu);
81/**
82 * cpu__get_socket_id - Returns the socket number as read from
83 * /sys/devices/system/cpu/cpuX/topology/physical_package_id for the given CPU.
84 */
85int cpu__get_socket_id(struct perf_cpu cpu);
86/**
87 * cpu__get_die_id - Returns the die id as read from
88 * /sys/devices/system/cpu/cpuX/topology/die_id for the given CPU.
89 */
90int cpu__get_die_id(struct perf_cpu cpu);
91/**
92 * cpu__get_cluster_id - Returns the cluster id as read from
93 * /sys/devices/system/cpu/cpuX/topology/cluster_id for the given CPU
94 */
95int cpu__get_cluster_id(struct perf_cpu cpu);
96/**
97 * cpu__get_core_id - Returns the core id as read from
98 * /sys/devices/system/cpu/cpuX/topology/core_id for the given CPU.
99 */
100int cpu__get_core_id(struct perf_cpu cpu);
101
102/**
103 * cpu_aggr_map__empty_new - Create a cpu_aggr_map of size nr with every entry
104 * being empty.
105 */
106struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr);
107
108typedef struct aggr_cpu_id (*aggr_cpu_id_get_t)(struct perf_cpu cpu, void *data);
109
110/**
111 * cpu_aggr_map__new - Create a cpu_aggr_map with an aggr_cpu_id for each cpu in
112 * cpus. The aggr_cpu_id is created with 'get_id' that may have a data value
113 * passed to it. The cpu_aggr_map is sorted with duplicate values removed.
114 */
115struct cpu_aggr_map *cpu_aggr_map__new(const struct perf_cpu_map *cpus,
116 aggr_cpu_id_get_t get_id,
117 void *data, bool needs_sort);
118
119bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b);
120bool aggr_cpu_id__is_empty(const struct aggr_cpu_id *a);
121struct aggr_cpu_id aggr_cpu_id__empty(void);
122
123
124/**
125 * aggr_cpu_id__socket - Create an aggr_cpu_id with the socket populated with
126 * the socket for cpu. The function signature is compatible with
127 * aggr_cpu_id_get_t.
128 */
129struct aggr_cpu_id aggr_cpu_id__socket(struct perf_cpu cpu, void *data);
130/**
131 * aggr_cpu_id__die - Create an aggr_cpu_id with the die and socket populated
132 * with the die and socket for cpu. The function signature is compatible with
133 * aggr_cpu_id_get_t.
134 */
135struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data);
136/**
137 * aggr_cpu_id__cluster - Create an aggr_cpu_id with cluster, die and socket
138 * populated with the cluster, die and socket for cpu. The function signature
139 * is compatible with aggr_cpu_id_get_t.
140 */
141struct aggr_cpu_id aggr_cpu_id__cluster(struct perf_cpu cpu, void *data);
142/**
143 * aggr_cpu_id__core - Create an aggr_cpu_id with the core, cluster, die and
144 * socket populated with the core, die and socket for cpu. The function
145 * signature is compatible with aggr_cpu_id_get_t.
146 */
147struct aggr_cpu_id aggr_cpu_id__core(struct perf_cpu cpu, void *data);
148/**
149 * aggr_cpu_id__core - Create an aggr_cpu_id with the cpu, core, die and socket
150 * populated with the cpu, core, die and socket for cpu. The function signature
151 * is compatible with aggr_cpu_id_get_t.
152 */
153struct aggr_cpu_id aggr_cpu_id__cpu(struct perf_cpu cpu, void *data);
154/**
155 * aggr_cpu_id__node - Create an aggr_cpu_id with the numa node populated for
156 * cpu. The function signature is compatible with aggr_cpu_id_get_t.
157 */
158struct aggr_cpu_id aggr_cpu_id__node(struct perf_cpu cpu, void *data);
159/**
160 * aggr_cpu_id__global - Create an aggr_cpu_id for global aggregation.
161 * The function signature is compatible with aggr_cpu_id_get_t.
162 */
163struct aggr_cpu_id aggr_cpu_id__global(struct perf_cpu cpu, void *data);
164#endif /* __PERF_CPUMAP_H */