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(parent: fd6e440) | patch
powerpc/64s: Allow control of RFI flush via debugfs
authorMichael Ellerman <mpe@ellerman.id.au>
Tue, 16 Jan 2018 11:17:18 +0000 (22:17 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 17 Jan 2018 12:30:21 +0000 (23:30 +1100)
commit236003e6b5443c45c18e613d2b0d776a9f87540e
tree9bef6af7bd651cff92484097cbc43cebbeee253atree
parentfd6e440f20b1a4304553775fc55938848ff617c9commit | diff
powerpc/64s: Allow control of RFI flush via debugfs

Expose the state of the RFI flush (enabled/disabled) via debugfs, and
allow it to be enabled/disabled at runtime.

eg: $ cat /sys/kernel/debug/powerpc/rfi_flush
    1
    $ echo 0 > /sys/kernel/debug/powerpc/rfi_flush
    $ cat /sys/kernel/debug/powerpc/rfi_flush
    0

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
arch/powerpc/kernel/setup_64.c diff | blob | history
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