tree e13aca0a721c57bd36d3c0b2fb42488feb62aef6
parent 836bfa0d2930b7ec236aa488f01678c92eb5f0de
author Will Deacon <will.deacon@arm.com> 1370889279 +0100
committer Marek Szyprowski <m.szyprowski@samsung.com> 1372425267 +0200

ARM: dma-mapping: convert DMA direction into IOMMU protection attributes

IOMMU mappings take a prot parameter, identifying the protection bits
to enforce on the newly created mapping (READ or WRITE). The ARM
dma-mapping framework currently just passes 0 as the prot argument,
resulting in faulting mappings.

This patch infers the protection attributes based on the direction of
the DMA transfer.

Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>