Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) What:		/sys/kernel/debug/powerpc/memtrace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) Description:	This folder contains the relevant debugfs files for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		hardware trace macro to use. CONFIG_PPC64_HARDWARE_TRACING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 		must be set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) What:		/sys/kernel/debug/powerpc/memtrace/enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) Description:	Write an integer containing the size in bytes of the memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		you want removed from each NUMA node to this file - it must be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		aligned to the memblock size. This amount of RAM will be removed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		from each NUMA node in the kernel mappings and the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 		debugfs files will be created. Once memory is successfully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		removed from each node, the following files are created. To
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 		re-add memory to the kernel, echo 0 into this file (it will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		automatically onlined).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) What:		/sys/kernel/debug/powerpc/memtrace/<node-id>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) Description:	This directory contains information about the removed memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		from the specific NUMA node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) What:		/sys/kernel/debug/powerpc/memtrace/<node-id>/size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) Description:	This contains the size of the memory removed from the node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) What:		/sys/kernel/debug/powerpc/memtrace/<node-id>/start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) Description:	This contains the start address of the removed memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) What:		/sys/kernel/debug/powerpc/memtrace/<node-id>/trace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) Date:		Aug 2017
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) KernelVersion:	4.14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) Contact:	linuxppc-dev@lists.ozlabs.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) Description:	This is where the hardware trace macro will output the trace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		it generates.