Re: [PATCH v6 14/25] iommu/msm: Implement an IDENTITY domain
From: Baolu Lu <baolu.lu@linux.intel.com>
Date: 2023-08-14 05:54:36
Also in:
linux-arm-kernel, linux-arm-msm, linux-iommu, linux-mediatek, linux-rockchip, linux-s390, linux-samsung-soc, linux-sunxi, linux-tegra
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