On Wed, Aug 23, 2023 at 01:47:26PM -0300, Jason Gunthorpe wrote:
> All ARM64 iommu drivers should support IOMMU_DOMAIN_DMA to enable
> dma-iommu.c.
>
> tegra is blocking dma-iommu usage, and also default_domain's, because it
> wants an identity translation. This is needed for some device quirk. Th
All ARM64 iommu drivers should support IOMMU_DOMAIN_DMA to enable
dma-iommu.c.
tegra is blocking dma-iommu usage, and also default_domain's, because it
wants an identity translation. This is needed for some device quirk. The
correct way to do this is to support IDENTITY domains and use
ops->def_do
