arm64: pgtable: Implement p[mu]d_valid() and check in set_p[mu]d()

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Now that our walk-cache invalidation routines imply a DSB before the
invalidation, we no longer need one when we are clearing an entry during
unmap.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Will Deacon 2018-08-22 21:36:31 +01:00 • committed by Catalin Marinas

parent 45a284bc5e

commit 0795edaf3f

1 changed files with 8 additions and 2 deletions

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arch/arm64/include/asm/pgtable.h

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