[PATCH v2] arm64: Allow for different DMA and CPU bus offsets

Arnd Bergmann arnd at arndb.de
Wed May 18 06:05:11 PDT 2016


On Wednesday 18 May 2016 14:53:30 Alexander Graf wrote:
> On arm64, all SoCs we supported so far either have an IOMMU or have bus
> addresses equal to CPU addresses.
> 
> However, with the Raspberry Pi 3 coming up, this is no longer true. To
> allow DMA to work with an AArch64 kernel on those devices, let's allow
> devices to have DMA offsets again.
> 
> Signed-off-by: Alexander Graf <agraf at suse.de>
> 
> 

Acked-by: Arnd Bergmann <arnd at arndb.de>



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