Messages in this thread Patch in this message | | | From | Robin Murphy <> | Subject | [PATCH 16/23] iommu/arm-smmu: Prepare for multiple DMA domain types | Date | Wed, 21 Jul 2021 19:20:27 +0100 |
| |
In preparation for the strict vs. non-strict decision for DMA domains to be expressed in the domain type, make sure we expose our flush queue awareness by accepting the new domain type, and test the specific feature flag where we want to identify DMA domains in general.
Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 1 + drivers/iommu/arm/arm-smmu/arm-smmu.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
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 039f371d2f8b..fa41026d272e 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -1972,6 +1972,7 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA && + type != IOMMU_DOMAIN_DMA_FQ && type != IOMMU_DOMAIN_IDENTITY) return NULL; diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index 354be8f4c0ef..dbc14c265b15 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -870,10 +870,11 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_DMA && + type != IOMMU_DOMAIN_DMA_FQ && type != IOMMU_DOMAIN_IDENTITY) return NULL; - if (type == IOMMU_DOMAIN_DMA && using_legacy_binding) + if ((type & __IOMMU_DOMAIN_DMA_API) && using_legacy_binding) return NULL; /* * Allocate the domain and initialise some of its data structures. -- 2.25.1
| |