tools/perf/lib/include/internal/mmap.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __LIBPERF_INTERNAL_MMAP_H
   3 #define __LIBPERF_INTERNAL_MMAP_H
   4
   5 #include <linux/refcount.h>
   6 #include <linux/types.h>
   7 #include <stdbool.h>
   8
   9 /**
  10  * struct perf_mmap - perf's ring buffer mmap details
  11  *
  12  * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
  13  */
  14 struct perf_mmap {
  15         void            *base;
  16         int              mask;
  17         int              fd;
  18         int              cpu;
  19         refcount_t       refcnt;
  20         u64              prev;
  21         u64              start;
  22         u64              end;
  23         bool             overwrite;
  24 };
  25
  26 #endif /* __LIBPERF_INTERNAL_MMAP_H */