Re: [PATCH v6 14/25] iommu/msm: Implement an IDENTITY domain

Baolu Lu
2023-08-14T05:54:36Z

On 2023/8/3 8:08, 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
>
> Signed-off-by: Jason Gunthorpe<jgg@nvidia.com>
> ---
> drivers/iommu/msm_iommu.c | 23 +++++++++++++++++++----
> 1 file changed, 19 insertions(+), 4 deletions(-)

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu