Commit 60c30aa6 authored by Vasant Hegde's avatar Vasant Hegde Committed by Joerg Roedel
Browse files

iommu/arm-smmu-v3: Enhance domain_alloc_user() to allocate PASID capable domain 



Core layer is modified to call domain_alloc_user() to allocate PASID
capable domain. Enhance arm_smmu_domain_alloc_user() to allocate
PASID capable domain based on the 'flags' parameter.

Signed-off-by: default avatarVasant Hegde <vasant.hegde@amd.com>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-5-vasant.hegde@amd.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent b7a0855e

drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

+5 −1
Original line number Diff line number Diff line
@@ -3084,7 +3084,8 @@ arm_smmu_domain_alloc_user(struct device *dev, u32 flags, 
			   const struct iommu_user_data *user_data)

{

	struct arm_smmu_master *master = dev_iommu_priv_get(dev);

	const u32 PAGING_FLAGS = IOMMU_HWPT_ALLOC_DIRTY_TRACKING;

	const u32 PAGING_FLAGS = IOMMU_HWPT_ALLOC_DIRTY_TRACKING |

					IOMMU_HWPT_ALLOC_PASID;

	struct arm_smmu_domain *smmu_domain;

	int ret;
@@ -3093,6 +3094,9 @@ arm_smmu_domain_alloc_user(struct device *dev, u32 flags, 
	if (parent || user_data)

		return ERR_PTR(-EOPNOTSUPP);



	if (flags & IOMMU_HWPT_ALLOC_PASID)

		return arm_smmu_domain_alloc_paging(dev);



	smmu_domain = arm_smmu_domain_alloc();

	if (IS_ERR(smmu_domain))

		return ERR_CAST(smmu_domain);