mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

iommu/arm-smmu: Prepare for multiple DMA domain types 

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.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/8f217ef285bd0bb9456c27ef622d2efdbbca1ad8.1628682049.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Robin Murphy 2021-08-11 13:21:32 +01:00 committed by Joerg Roedel
parent 6d59603939
commit f9afa313ad
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
View File

@ -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;

3
drivers/iommu/arm/arm-smmu/arm-smmu.c
View File

@ -866,7 +866,8 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type)
struct arm_smmu_domain *smmu_domain;
if (type != IOMMU_DOMAIN_UNMANAGED && type != IOMMU_DOMAIN_IDENTITY) {
if (using_legacy_binding || type != IOMMU_DOMAIN_DMA)
if (using_legacy_binding ||
(type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_DMA_FQ))
return NULL;
}
/*