LXR linux/tools/lib/perf/include/perf/evsel.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __LIBPERF_EVSEL_H
   3#define __LIBPERF_EVSEL_H
   4
   5#include <stdint.h>
   6#include <perf/core.h>
   7#include <stdbool.h>
   8#include <linux/types.h>
   9
  10struct perf_evsel;
  11struct perf_event_attr;
  12struct perf_cpu_map;
  13struct perf_thread_map;
  14
  15struct perf_counts_values {
  16        union {
  17                struct {
  18                        uint64_t val;
  19                        uint64_t ena;
  20                        uint64_t run;
  21                };
  22                uint64_t values[3];
  23        };
  24};
  25
  26LIBPERF_API struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr);
  27LIBPERF_API void perf_evsel__delete(struct perf_evsel *evsel);
  28LIBPERF_API int perf_evsel__open(struct perf_evsel *evsel, struct perf_cpu_map *cpus,
  29                                 struct perf_thread_map *threads);
  30LIBPERF_API void perf_evsel__close(struct perf_evsel *evsel);
  31LIBPERF_API void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu_map_idx);
  32LIBPERF_API int perf_evsel__mmap(struct perf_evsel *evsel, int pages);
  33LIBPERF_API void perf_evsel__munmap(struct perf_evsel *evsel);
  34LIBPERF_API void *perf_evsel__mmap_base(struct perf_evsel *evsel, int cpu_map_idx, int thread);
  35LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int thread,
  36                                 struct perf_counts_values *count);
  37LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel);
  38LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
  39LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel);
  40LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
  41LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel);
  42LIBPERF_API struct perf_thread_map *perf_evsel__threads(struct perf_evsel *evsel);
  43LIBPERF_API struct perf_event_attr *perf_evsel__attr(struct perf_evsel *evsel);
  44LIBPERF_API void perf_counts_values__scale(struct perf_counts_values *count,
  45                                           bool scale, __s8 *pscaled);
  46
  47#endif /* __LIBPERF_EVSEL_H */
  48