Re: [RFC/PATCH v3] powerpc/iommu: Support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask

On 05/14/2015 05:03 PM, Benjamin Herrenschmidt wrote:

This patch adds the ability to the DMA direct ops to fallback to the IOMMU
ops for coherent alloc/free if the coherent mask of the device isn't
suitable for accessing the direct DMA space and the device also happens
to have an active IOMMU table.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Thanks. This one works fine for me with mpt2sas.

Tested-by: Brian King <redacted>

-Brian

-- 
Brian King
Power Linux I/O
IBM Linux Technology Center