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powerpc/32s: Don't flush all TLBs when flushing one page
authorChristophe Leroy <christophe.leroy@c-s.fr>
Sat, 1 Feb 2020 08:04:31 +0000 (08:04 +0000)
committerMichael Ellerman <mpe@ellerman.id.au>
Wed, 19 Feb 2020 11:46:08 +0000 (22:46 +1100)
commit030e347430957f6f7f29db9099368f8b86c0bf76
tree91d3131cbb84c63dcf140c60fcca573e0a1b4f67tree | snapshot
parentd8e73458f33a24810413ee3a0cd020b644de2f98commit | diff
powerpc/32s: Don't flush all TLBs when flushing one page

When flushing any memory range, the flushing function
flushes all TLBs.

When (start) and (end - 1) are in the same memory page,
flush that page instead.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b30b2eae6960502eaf0d9e36c60820b839693c33.1580542939.git.christophe.leroy@c-s.fr
arch/powerpc/mm/book3s32/tlb.c diff | blob | history
Domain: System / Kernel;