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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>
This commit is contained in:
Nicolin Chen 2020-09-11 00:16:42 -07:00 committed by Joerg Roedel
parent 82fa58e81d
commit 4fba98859b
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/tegra-smmu.c
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@ -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)