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

[Catalin Marinas]

On Wed, May 18, 2016 at 02:27:41PM +0100, Catalin Marinas wrote:
> On Wed, May 18, 2016 at 02:53:30PM +0200, 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>
> 
> We were aware about this issue but we've been waiting for an actual use
> case. I'll queue this for 4.8 (given that RPi3 is not supported by the
> arm64 kernel, I don't see the rush to merge it earlier).

In case this patch goes in via the arm-soc tree (together with other
RPi3 patches):

Acked-by: Catalin Marinas <catalin.marinas at arm.com>