On Wed, Feb 06, 2019 at 02:08:33PM -0800, Guenter Roeck wrote:
> On Fri, Feb 01, 2019 at 02:28:26PM +0100, Thierry Reding wrote:
> > If we use the IOMMU API directly to map buffers into host1x' IOVA space,
> > we must make sure that the DMA API doesn't already set up a mapping, or
> > else
On Fri, Feb 01, 2019 at 02:28:26PM +0100, Thierry Reding wrote:
> If we use the IOMMU API directly to map buffers into host1x' IOVA space,
> we must make sure that the DMA API doesn't already set up a mapping, or
> else translation will fail.
>
> The direct DMA API allows us to allocate memory
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