[PATCH v3 05/33] iommu/mediatek: Adapt sharing and non-sharing pgtable case

[AngeloGioacchino Del Regno]

Il 23/09/21 13:58, Yong Wu ha scritto:
> In previous mt2712, Both IOMMUs are MM IOMMU, and they will share pgtable.
> However in the latest SoC, another is infra IOMMU, there is no reason to
> share pgtable between MM with INFRA IOMMU. This patch manage to
> implement the two case(sharing and non-sharing pgtable).
> 
> Currently we use for_each_m4u to loop the 2 HWs. Add the list_head into
> this macro.
> In the sharing pgtable case, the list_head is the global "m4ulist".
> In the non-sharing pgtable case, the list_head is hw_list_head which is a
> variable in the "data". then for_each_m4u will only loop itself.
> 
> Signed-off-by: Yong Wu <yong.wu at mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>