Commit 4fba9885 authored Sep 11, 2020 by Nicolin Chen Committed by Joerg Roedel Sep 24, 2020

iommu/tegra-smmu: Fix iova->phys translation



IOVA might not be always 4KB aligned. So tegra_smmu_iova_to_phys
function needs to add on the lower 12-bit offset from input iova.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200911071643.17212-3-nicoleotsuka@gmail.com


Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent 82fa58e8

drivers/iommu/tegra-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -795,7 +795,7 @@ static phys_addr_t tegra_smmu_iova_to_phys(struct iommu_domain *domain,

		pfn = *pte & as->smmu->pfn_mask;

		return SMMU_PFN_PHYS(pfn);
		return SMMU_PFN_PHYS(pfn) + SMMU_OFFSET_IN_PAGE(iova);
		}

		static struct tegra_smmu tegra_smmu_find(struct device_node np)

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