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| author | Kumar Gala <galak@kernel.crashing.org> | 2009-03-19 03:55:40 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-24 13:47:31 +1100 |
| commit | eb3436a0139a651a39dbb37a75b10a2cccd00ad5 (patch) | |
| tree | b3925f180d0a7e80b76476694db42bb338db4d6c /arch/powerpc/kernel/crash.c | |
| parent | 00fcb14703d8322a9c66cb3f48b5c49ac7d43f0a (diff) | |
| download | blackbird-op-linux-eb3436a0139a651a39dbb37a75b10a2cccd00ad5.tar.gz blackbird-op-linux-eb3436a0139a651a39dbb37a75b10a2cccd00ad5.zip | |
powerpc/mm: Used free register to save a few cycles in SW TLB miss handling
Now that r0 is free we can keep the value of I/DMISS in r3 and not reload
it before doing the tlbli/d. This saves us a few cycles in the fast path
case.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/crash.c')
0 files changed, 0 insertions, 0 deletions
