Documentation/ABI/testing/sysfs-kernel-mm-cma

   1 What:           /sys/kernel/mm/cma/
   2 Date:           Feb 2021
   3 Contact:        Minchan Kim <minchan@kernel.org>
   4 Description:
   5                 /sys/kernel/mm/cma/ contains a subdirectory for each CMA
   6                 heap name (also sometimes called CMA areas).
   7
   8                 Each CMA heap subdirectory (that is, each
   9                 /sys/kernel/mm/cma/<cma-heap-name> directory) contains the
  10                 following items:
  11
  12                         alloc_pages_success
  13                         alloc_pages_fail
  14
  15 What:           /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success
  16 Date:           Feb 2021
  17 Contact:        Minchan Kim <minchan@kernel.org>
  18 Description:
  19                 the number of pages CMA API succeeded to allocate
  20
  21 What:           /sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_fail
  22 Date:           Feb 2021
  23 Contact:        Minchan Kim <minchan@kernel.org>
  24 Description:
  25                 the number of pages CMA API failed to allocate
  26
  27 What:           /sys/kernel/mm/cma/<cma-heap-name>/release_pages_success
  28 Date:           Feb 2024
  29 Contact:        Anshuman Khandual <anshuman.khandual@arm.com>
  30 Description:
  31                 the number of pages CMA API succeeded to release