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Documentation: Update documentation on ppc-memtrace 

Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.1
Rashmica Gupta 2018-08-03 16:06:01 +10:00 committed by Michael Ellerman
parent d3da701d33
commit 24576a70e7
1 changed files with 5 additions and 4 deletions
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Documentation/ABI/testing/ppc-memtrace
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@ -13,10 +13,11 @@ 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.
from each NUMA node in the kernel mappings and the following
debugfs files will be created. Once memory is successfully
removed from each node, the following files are created. To
re-add memory to the kernel, echo 0 into this file (it will be
automatically onlined).
What: /sys/kernel/debug/powerpc/memtrace/<node-id>
Date: Aug 2017