Commit 05314f32 authored Jun 07, 2016 by Mitchel Humpherys Committed by Patrick Daly Mar 20, 2017

arm-smmu: Implement DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT



Implement support for DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT.

Change-Id: Ic54416bb38d327bc9a042397caee1407e880f02a
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>

parent 67ec627f

drivers/iommu/arm-smmu.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -2587,6 +2587,12 @@ static int arm_smmu_domain_get_attr(struct iommu_domain *domain,
		& (1 << DOMAIN_ATTR_EARLY_MAP));
		ret = 0;
		break;
		case DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT:
		if (!smmu_domain->smmu)
		return -ENODEV;
		((int )data) = smmu_domain->smmu->dev->archdata.dma_coherent;
		ret = 0;
		break;
		default:
		return -ENODEV;
		}