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| author | Vasant Hegde <vasant.hegde@amd.com> | 2024-10-28 12:38:02 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-10-29 12:08:19 +0300 |
| commit | 60c30aa6afa2397cde39f15849d808536374b330 (patch) | |
| tree | 42bb2367c5f11c9fe3a370cfec723a6140a53d02 | |
| parent | b7a0855eb95f6db8ac8e17596e76f7b94a790fe6 (diff) | |
| download | linux-60c30aa6afa2397cde39f15849d808536374b330.tar.xz | |
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: 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>
| -rw-r--r-- | drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 737c5b882355..8a193141f003 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -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); |