Re: [PATCH 2/2] media: venus: Fix iova allocation from restrict region

[Dmitry Baryshkov]

On Tue, Aug 18, 2026 at 01:25:58PM +0530, Vikash Garodia wrote:
> 
> On 8/18/2026 12:34 PM, Dmitry Baryshkov wrote:
> > On Wed, Aug 12, 2026 at 04:25:59PM +0530, Vishnu Reddy wrote:
> > > The VPU issues DMA through several SMMU streams, and the hardware does
> > > not give every stream the same addressable range. The non-pixel stream
> > > cannot address the low 600MB of IOVA space, while the pixel stream can
> > > address the full range:
> > >      +-----------------------------------------------------------+
> > >      | non-pixel stream addressable range (600 MB - 3.5 GB)      |
> > >      | 0x25800000 - 0xe0000000                                   |
> > >      +-----------------------------------------------------------+
> > >      | pixel stream addressable range (0 - 3.5 GB)               |
> > >      | 0x00000000 - 0xe0000000                                   |
> > >      +-----------------------------------------------------------+
> > Does this split apply to all generations of Venus? We support MSM8916,
> > for example. There has been work to enable MSM8974.
> 
> Yes, applicable for all VPUs

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry