[PATCH 0/3] arm64: Default to non-coherent DMA ops

Rob Herring robherring2 at gmail.com
Fri Apr 25 11:19:48 PDT 2014

On Fri, Apr 25, 2014 at 12:34 PM, Catalin Marinas
<catalin.marinas at arm.com> wrote:
> Following recent discussions and patch from Ritesh, I'm planning to
> align the default DMA ops with 32-bit arm and make them non-coherent. In
> addition, we need to make sure that devices marked explicitly as
> coherent use the correct dma ops. Until Santosh's DMA patches get
> reviewed/merged, the temporary solution is bus notifiers which check the
> "dma-coherent" property and set the right dma ops.

Is this for 3.15? If not, don't you think Santosh's patches will be
ready for 3.16. I need to take another look, but I'm pretty much happy
with them. My only issue really is whether we want to spread the use
of dma-coherent. Will did call my cute little property a hack, but I
have yet to see anything better.


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