tree 88735f6ed6157a9b2329d35c3d9576a10b4c9ff7
parent 3d5391ac6f5e3cb1ab01e23851140d3f6e9ab573
author Stefano Stabellini <stefano.stabellini@eu.citrix.com> 1416480160 +0000
committer David Vrabel <david.vrabel@citrix.com> 1417696911 +0000

xen/arm: use is_device_dma_coherent

Use is_device_dma_coherent to check whether we need to issue cache
maintenance operations rather than checking on the existence of a
particular dma_ops function for the device.

This is correct because coherent devices don't need cache maintenance
operations - arm_coherent_dma_ops does not set the hooks that we
were previously checking for existance.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>