Commit 4fba9885 authored by Nicolin Chen's avatar Nicolin Chen Committed by Joerg Roedel

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: default avatarNicolin Chen <nicoleotsuka@gmail.com>
Acked-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200911071643.17212-3-nicoleotsuka@gmail.comSigned-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 82fa58e8
...@@ -795,7 +795,7 @@ static phys_addr_t tegra_smmu_iova_to_phys(struct iommu_domain *domain, ...@@ -795,7 +795,7 @@ static phys_addr_t tegra_smmu_iova_to_phys(struct iommu_domain *domain,
pfn = *pte & as->smmu->pfn_mask; 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) static struct tegra_smmu *tegra_smmu_find(struct device_node *np)
......
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