Re: [PATCH v5 00/13] media: iris: Migrate iommus to iris sub nodes
From: Konrad Dybcio
Date: Wed Sep 30 2026 - 06:40:16 EST
On 9/26/26 8:33 AM, Vikash Garodia wrote:
> The VPU issues DMA through several SMMU streams, and the hardware does
> not restricts specific streams with specific addressable range. The
> non-pixel stream is restricted to use 0-600MB 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 |
> +-----------------------------------------------------------+
Please address all venus/iris-enabled platforms once this lands
Konrad