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

2023-08-13 Thread Baolu Lu
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 c

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

2023-08-02 Thread Jason Gunthorpe
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