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e8399d34d5
Avoid redefinition of MAX_NR_CPUS as a global constant, the original definition is tools/perf/perf.h. Reviewed-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ben Gainey <ben.gainey@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Kyle Meyer <kyle.meyer@hpe.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20241206044035.1062032-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
34 lines
1.1 KiB
C
34 lines
1.1 KiB
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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#include <internal/rc_check.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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DECLARE_RC_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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struct perf_cpu_map *perf_cpu_map__alloc(int nr_cpus);
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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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void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus);
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static inline refcount_t *perf_cpu_map__refcnt(struct perf_cpu_map *map)
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{
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return &RC_CHK_ACCESS(map)->refcnt;
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}
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#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
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