1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_CPUMAP_H
3 #define __PERF_CPUMAP_H
7 #include <perf/cpumap.h>
8 #include <linux/refcount.h>
10 /** Identify where counts are aggregated, -1 implies not to aggregate. */
12 /** A value in the range 0 to number of threads. */
14 /** The numa node X as read from /sys/devices/system/node/nodeX. */
17 * The socket number as read from
18 * /sys/devices/system/cpu/cpuX/topology/physical_package_id.
21 /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
23 /** The cluster id as read from /sys/devices/system/cpu/cpuX/topology/cluster_id */
25 /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */
28 * The cache instance ID, which is the first CPU in the
29 * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list
32 /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
34 /** CPU aggregation, note there is one CPU for each SMT thread. */
38 /** A collection of aggr_cpu_id values, the "built" version is sorted and uniqued. */
41 /** Number of valid entries. */
44 struct aggr_cpu_id map[];
47 #define cpu_aggr_map__for_each_idx(idx, aggr_map) \
48 for ((idx) = 0; (idx) < aggr_map->nr; (idx)++)
50 struct perf_record_cpu_map_data;
52 bool perf_record_cpu_map_data__test_bit(int i, const struct perf_record_cpu_map_data *data);
54 struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
56 struct perf_cpu_map *cpu_map__new_data(const struct perf_record_cpu_map_data *data);
57 size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size);
58 size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size);
59 size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp);
60 struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */
62 int cpu__setup_cpunode_map(void);
64 int cpu__max_node(void);
65 struct perf_cpu cpu__max_cpu(void);
66 struct perf_cpu cpu__max_present_cpu(void);
69 * cpu_map__is_dummy - Events associated with a pid, rather than a CPU, use a single dummy map with an entry of -1.
71 static inline bool cpu_map__is_dummy(const struct perf_cpu_map *cpus)
73 return perf_cpu_map__nr(cpus) == 1 && perf_cpu_map__cpu(cpus, 0).cpu == -1;
77 * cpu__get_node - Returns the numa node X as read from
78 * /sys/devices/system/node/nodeX for the given CPU.
80 int cpu__get_node(struct perf_cpu cpu);
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.
85 int cpu__get_socket_id(struct perf_cpu cpu);
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.
90 int cpu__get_die_id(struct perf_cpu cpu);
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
95 int cpu__get_cluster_id(struct perf_cpu cpu);
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.
100 int cpu__get_core_id(struct perf_cpu cpu);
103 * cpu_aggr_map__empty_new - Create a cpu_aggr_map of size nr with every entry
106 struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr);
108 typedef struct aggr_cpu_id (*aggr_cpu_id_get_t)(struct perf_cpu cpu, void *data);
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.
115 struct 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);
119 bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b);
120 bool aggr_cpu_id__is_empty(const struct aggr_cpu_id *a);
121 struct aggr_cpu_id aggr_cpu_id__empty(void);
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
129 struct aggr_cpu_id aggr_cpu_id__socket(struct perf_cpu cpu, void *data);
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
135 struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data);
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.
141 struct aggr_cpu_id aggr_cpu_id__cluster(struct perf_cpu cpu, void *data);
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.
147 struct aggr_cpu_id aggr_cpu_id__core(struct perf_cpu cpu, void *data);
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.
153 struct aggr_cpu_id aggr_cpu_id__cpu(struct perf_cpu cpu, void *data);
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.
158 struct aggr_cpu_id aggr_cpu_id__node(struct perf_cpu cpu, void *data);
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.
163 struct aggr_cpu_id aggr_cpu_id__global(struct perf_cpu cpu, void *data);
164 #endif /* __PERF_CPUMAP_H */