Re: [PATCH v6 00/33] MT8192 IOMMU support

Will Deacon
2021-02-01T15:19:29Z

On Mon, Jan 11, 2021 at 07:18:41PM +0800, Yong Wu wrote:
> This patch mainly adds support for mt8192 Multimedia IOMMU and SMI.
>
> mt8192 also is MTK IOMMU gen2 which uses ARM Short-Descriptor translation
> table format. The M4U-SMI HW diagram is as below:
>
> EMI
> |
> M4U
> |
> ------------
> SMI Common
> ------------
> |
> +-------+------+------+----------------------+-------+
> | | | | ...... | |
> | | | | | |
> larb0 larb1 larb2 larb4 ...... larb19 larb20
> disp0 disp1 mdp vdec IPE IPE
>
> All the connections are HW fixed, SW can NOT adjust it.
>
> Comparing with the preview SoC, this patchset mainly adds two new functions:
> a) add iova 34 bits support.
> b) add multi domains support since several HW has the special iova
> region requirement.
>
> change note:
> v6:a) base on v5.11-rc1. and tlb v4:
> https://lore.kernel.org/linux-mediatek/20210107122909.16317-1-yong.wu@mediatek.com/T/#t

I've queued this up apart from patches 6 and 7.

Thanks,

Will