13ce311afSJiri Olsa /* SPDX-License-Identifier: GPL-2.0 */ 23ce311afSJiri Olsa #ifndef __LIBPERF_INTERNAL_CPUMAP_H 33ce311afSJiri Olsa #define __LIBPERF_INTERNAL_CPUMAP_H 43ce311afSJiri Olsa 53ce311afSJiri Olsa #include <linux/refcount.h> 630d1c4d9SJiri Olsa #include <perf/cpumap.h> 7*da885a0eSIan Rogers #include <internal/rc_check.h> 86d18804bSIan Rogers 9818ab78cSIan Rogers /** 10818ab78cSIan Rogers * A sized, reference counted, sorted array of integers representing CPU 11818ab78cSIan Rogers * numbers. This is commonly used to capture which CPUs a PMU is associated 12818ab78cSIan Rogers * with. The indices into the cpumap are frequently used as they avoid having 13818ab78cSIan Rogers * gaps if CPU numbers were used. For events associated with a pid, rather than 14818ab78cSIan Rogers * a CPU, a single dummy map with an entry of -1 is used. 15818ab78cSIan Rogers */ DECLARE_RC_STRUCT(perf_cpu_map)16*da885a0eSIan RogersDECLARE_RC_STRUCT(perf_cpu_map) { 173ce311afSJiri Olsa refcount_t refcnt; 18818ab78cSIan Rogers /** Length of the map array. */ 193ce311afSJiri Olsa int nr; 20818ab78cSIan Rogers /** The CPU values. */ 216d18804bSIan Rogers struct perf_cpu map[]; 223ce311afSJiri Olsa }; 233ce311afSJiri Olsa 243ce311afSJiri Olsa #ifndef MAX_NR_CPUS 253ce311afSJiri Olsa #define MAX_NR_CPUS 2048 263ce311afSJiri Olsa #endif 273ce311afSJiri Olsa 281f94479eSIan Rogers struct perf_cpu_map *perf_cpu_map__alloc(int nr_cpus); 296d18804bSIan Rogers int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu); 30c3ad8d23SIan Rogers bool perf_cpu_map__is_subset(const struct perf_cpu_map *a, const struct perf_cpu_map *b); 313ce311afSJiri Olsa 32b2778514SArnaldo Carvalho de Melo void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus); 33b2778514SArnaldo Carvalho de Melo perf_cpu_map__refcnt(struct perf_cpu_map * map)344121234aSArnaldo Carvalho de Melostatic inline refcount_t *perf_cpu_map__refcnt(struct perf_cpu_map *map) 354121234aSArnaldo Carvalho de Melo { 36*da885a0eSIan Rogers return &RC_CHK_ACCESS(map)->refcnt; 374121234aSArnaldo Carvalho de Melo } 383ce311afSJiri Olsa #endif /* __LIBPERF_INTERNAL_CPUMAP_H */ 39