arm64: Make DMA coherent and strongly ordered mappings not executable

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pgprot_{dmacoherent,writecombine,noncached} don't need to generate
executable mappings with side-effects like __sync_icache_dcache() being
called when the mapping is in user space.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Tested-by: Laura Abbott <lauraa@codeaurora.org>
Tested-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Cc: <stable@vger.kernel.org>

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Catalin Marinas 2014-03-12 16:07:06 +00:00

parent d152d22a18

commit de2db74329

1 changed files with 3 additions and 3 deletions

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6

arch/arm64/include/asm/pgtable.h

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