[PATCH] iommu: arm-smmu: set a more appropriate DMA mask

On Thu, Mar 05 2015 at 10:56:36 AM, Robin Murphy [off-list ref] wrote:

Since we use dma_map_page() as an architecture-independent means of
making page table updates visible to non-coherent SMMUs, we need to
have a suitable DMA mask set to discourage the DMA mapping layer from
creating bounce buffers and flushing those instead, if said page tables
happen to lie outside the default 32-bit mask.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>

Tested-by: Mitchel Humpherys <redacted>

Thanks Robin!


-Mitch

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