Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/kernel/mm/cma/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:		Feb 2021
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Contact:	Minchan Kim <minchan@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 		/sys/kernel/mm/cma/ contains a subdirectory for each CMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		heap name (also sometimes called CMA areas).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 		Each CMA heap subdirectory (that is, each
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		/sys/kernel/mm/cma/<cma-heap-name> directory) contains the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 		following items:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 			alloc_pages_success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 			alloc_pages_fail
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) What:		/sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Date:		Feb 2021
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) Contact:	Minchan Kim <minchan@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		the number of pages CMA API succeeded to allocate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) What:		/sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_fail
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) Date:		Feb 2021
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) Contact:	Minchan Kim <minchan@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		the number of pages CMA API failed to allocate