31 lines
938 B
C
31 lines
938 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LIBPERF_INTERNAL_CPUMAP_H
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#define __LIBPERF_INTERNAL_CPUMAP_H
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#include <linux/refcount.h>
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#include <perf/cpumap.h>
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/**
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* A sized, reference counted, sorted array of integers representing CPU
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* numbers. This is commonly used to capture which CPUs a PMU is associated
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* with. The indices into the cpumap are frequently used as they avoid having
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* gaps if CPU numbers were used. For events associated with a pid, rather than
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* a CPU, a single dummy map with an entry of -1 is used.
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*/
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struct perf_cpu_map {
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refcount_t refcnt;
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/** Length of the map array. */
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int nr;
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/** The CPU values. */
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struct perf_cpu map[];
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};
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#ifndef MAX_NR_CPUS
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#define MAX_NR_CPUS 2048
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#endif
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int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu);
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bool perf_cpu_map__is_subset(const struct perf_cpu_map *a, const struct perf_cpu_map *b);
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#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
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