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135 lines
4.6 KiB
135 lines
4.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __PERF_CPUMAP_H |
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#define __PERF_CPUMAP_H |
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#include <stdbool.h> |
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#include <stdio.h> |
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#include <internal/cpumap.h> |
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#include <perf/cpumap.h> |
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/** Identify where counts are aggregated, -1 implies not to aggregate. */ |
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struct aggr_cpu_id { |
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/** A value in the range 0 to number of threads. */ |
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int thread; |
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/** The numa node X as read from /sys/devices/system/node/nodeX. */ |
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int node; |
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/** |
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* The socket number as read from |
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* /sys/devices/system/cpu/cpuX/topology/physical_package_id. |
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*/ |
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int socket; |
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/** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */ |
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int die; |
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/** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */ |
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int core; |
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/** CPU aggregation, note there is one CPU for each SMT thread. */ |
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struct perf_cpu cpu; |
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}; |
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/** A collection of aggr_cpu_id values, the "built" version is sorted and uniqued. */ |
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struct cpu_aggr_map { |
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refcount_t refcnt; |
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/** Number of valid entries. */ |
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int nr; |
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/** The entries. */ |
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struct aggr_cpu_id map[]; |
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}; |
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struct perf_record_cpu_map_data; |
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struct perf_cpu_map *perf_cpu_map__empty_new(int nr); |
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struct perf_cpu_map *cpu_map__new_data(struct perf_record_cpu_map_data *data); |
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size_t cpu_map__snprint(struct perf_cpu_map *map, char *buf, size_t size); |
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size_t cpu_map__snprint_mask(struct perf_cpu_map *map, char *buf, size_t size); |
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size_t cpu_map__fprintf(struct perf_cpu_map *map, FILE *fp); |
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const struct perf_cpu_map *cpu_map__online(void); /* thread unsafe */ |
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int cpu__setup_cpunode_map(void); |
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int cpu__max_node(void); |
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struct perf_cpu cpu__max_cpu(void); |
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struct perf_cpu cpu__max_present_cpu(void); |
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/** |
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* cpu_map__is_dummy - Events associated with a pid, rather than a CPU, use a single dummy map with an entry of -1. |
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*/ |
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static inline bool cpu_map__is_dummy(struct perf_cpu_map *cpus) |
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{ |
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return perf_cpu_map__nr(cpus) == 1 && perf_cpu_map__cpu(cpus, 0).cpu == -1; |
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} |
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/** |
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* cpu__get_node - Returns the numa node X as read from |
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* /sys/devices/system/node/nodeX for the given CPU. |
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*/ |
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int cpu__get_node(struct perf_cpu cpu); |
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/** |
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* cpu__get_socket_id - Returns the socket number as read from |
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* /sys/devices/system/cpu/cpuX/topology/physical_package_id for the given CPU. |
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*/ |
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int cpu__get_socket_id(struct perf_cpu cpu); |
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/** |
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* cpu__get_die_id - Returns the die id as read from |
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* /sys/devices/system/cpu/cpuX/topology/die_id for the given CPU. |
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*/ |
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int cpu__get_die_id(struct perf_cpu cpu); |
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/** |
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* cpu__get_core_id - Returns the core id as read from |
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* /sys/devices/system/cpu/cpuX/topology/core_id for the given CPU. |
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*/ |
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int cpu__get_core_id(struct perf_cpu cpu); |
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/** |
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* cpu_aggr_map__empty_new - Create a cpu_aggr_map of size nr with every entry |
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* being empty. |
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*/ |
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struct cpu_aggr_map *cpu_aggr_map__empty_new(int nr); |
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typedef struct aggr_cpu_id (*aggr_cpu_id_get_t)(struct perf_cpu cpu, void *data); |
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/** |
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* cpu_aggr_map__new - Create a cpu_aggr_map with an aggr_cpu_id for each cpu in |
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* cpus. The aggr_cpu_id is created with 'get_id' that may have a data value |
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* passed to it. The cpu_aggr_map is sorted with duplicate values removed. |
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*/ |
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struct cpu_aggr_map *cpu_aggr_map__new(const struct perf_cpu_map *cpus, |
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aggr_cpu_id_get_t get_id, |
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void *data); |
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bool aggr_cpu_id__equal(const struct aggr_cpu_id *a, const struct aggr_cpu_id *b); |
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bool aggr_cpu_id__is_empty(const struct aggr_cpu_id *a); |
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struct aggr_cpu_id aggr_cpu_id__empty(void); |
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/** |
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* aggr_cpu_id__socket - Create an aggr_cpu_id with the socket populated with |
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* the socket for cpu. The function signature is compatible with |
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* aggr_cpu_id_get_t. |
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*/ |
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struct aggr_cpu_id aggr_cpu_id__socket(struct perf_cpu cpu, void *data); |
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/** |
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* aggr_cpu_id__die - Create an aggr_cpu_id with the die and socket populated |
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* with the die and socket for cpu. The function signature is compatible with |
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* aggr_cpu_id_get_t. |
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*/ |
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struct aggr_cpu_id aggr_cpu_id__die(struct perf_cpu cpu, void *data); |
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/** |
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* aggr_cpu_id__core - Create an aggr_cpu_id with the core, die and socket |
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* populated with the core, die and socket for cpu. The function signature is |
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* compatible with aggr_cpu_id_get_t. |
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*/ |
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struct aggr_cpu_id aggr_cpu_id__core(struct perf_cpu cpu, void *data); |
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/** |
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* aggr_cpu_id__core - Create an aggr_cpu_id with the cpu, core, die and socket |
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* populated with the cpu, core, die and socket for cpu. The function signature |
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* is compatible with aggr_cpu_id_get_t. |
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*/ |
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struct aggr_cpu_id aggr_cpu_id__cpu(struct perf_cpu cpu, void *data); |
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/** |
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* aggr_cpu_id__node - Create an aggr_cpu_id with the numa node populated for |
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* cpu. The function signature is compatible with aggr_cpu_id_get_t. |
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*/ |
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struct aggr_cpu_id aggr_cpu_id__node(struct perf_cpu cpu, void *data); |
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#endif /* __PERF_CPUMAP_H */
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