[PATCH v7 14/24] iommu/msm: Implement an IDENTITY domain

[Jerry Snitselaar]

On Wed, Aug 23, 2023 at 01:47:28PM -0300, Jason Gunthorpe wrote:
> What msm does during msm_iommu_set_platform_dma() is actually putting the
> iommu into identity mode.
> 
> Move to the new core support for ARM_DMA_USE_IOMMU by defining
> ops->identity_domain.
> 
> This driver does not support IOMMU_DOMAIN_DMA, however it cannot be
> compiled on ARM64 either. Most likely it is fine to support dma-iommu.c
> 
> Reviewed-by: Lu Baolu <baolu.lu at linux.intel.com>
> Signed-off-by: Jason Gunthorpe <jgg at nvidia.com>
> ---
>  drivers/iommu/msm_iommu.c | 23 +++++++++++++++++++----
>  1 file changed, 19 insertions(+), 4 deletions(-)
> 

Reviewed-by: Jerry Snitselaar <jsnitsel at redhat.com>