arm64: Implement pmdp_set_access_flags() for hardware AF/DBM

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commit 282aa7051b upstream.

The update to the accessed or dirty states for block mappings must be
done atomically on hardware with support for automatic AF/DBM. The
ptep_set_access_flags() function has been fixed as part of commit
66dbd6e61a ("arm64: Implement ptep_set_access_flags() for hardware
AF/DBM"). This patch brings pmdp_set_access_flags() in line with the pte
counterpart.

Fixes: 2f4b829c62 ("arm64: Add support for hardware updates of the access and dirty pte bits")
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Catalin Marinas 2016-05-05 10:44:00 +01:00 • committed by Greg Kroah-Hartman

parent 098942bcf4

commit 7e1c1db08e

1 changed files with 10 additions and 0 deletions

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arch/arm64/include/asm/pgtable.h

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