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

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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: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20241028093810.5901-5-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Vasant Hegde
2024-10-28 09:38:02 +00:00
committed by Joerg Roedel
parent b7a0855eb9
commit 60c30aa6af
1 changed files with 5 additions and 1 deletions
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6
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
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@@ -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);