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

[Dmitry Baryshkov]

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.

-- 
With best wishes
Dmitry