mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 19:43:07 +07:00
46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
|
What: /sys/kernel/debug/powerpc/memtrace
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: This folder contains the relevant debugfs files for the
|
||
|
|
hardware trace macro to use. CONFIG_PPC64_HARDWARE_TRACING
|
||
|
|
must be set.
|
||
|
|
|
||
|
|
What: /sys/kernel/debug/powerpc/memtrace/enable
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: Write an integer containing the size in bytes of the memory
|
||
|
|
you want removed from each NUMA node to this file - it must be
|
||
|
|
aligned to the memblock size. This amount of RAM will be removed
|
||
|
|
from the kernel mappings and the following debugfs files will be
|
||
|
|
created. This can only be successfully done once per boot. Once
|
||
|
|
memory is successfully removed from each node, the following
|
||
|
|
files are created.
|
||
|
|
|
||
|
|
What: /sys/kernel/debug/powerpc/memtrace/<node-id>
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: This directory contains information about the removed memory
|
||
|
|
from the specific NUMA node.
|
||
|
|
|
||
|
|
What: /sys/kernel/debug/powerpc/memtrace/<node-id>/size
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: This contains the size of the memory removed from the node.
|
||
|
|
|
||
|
|
What: /sys/kernel/debug/powerpc/memtrace/<node-id>/start
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: This contains the start address of the removed memory.
|
||
|
|
|
||
|
|
What: /sys/kernel/debug/powerpc/memtrace/<node-id>/trace
|
||
|
|
Date: Aug 2017
|
||
|
|
KernelVersion: 4.14
|
||
|
|
Contact: linuxppc-dev@lists.ozlabs.org
|
||
|
|
Description: This is where the hardware trace macro will output the trace
|
||
|
|
it generates.
|