diff options
| author | Nicolin Chen | 2020-09-11 00:16:42 -0700 |
|---|---|---|
| committer | Joerg Roedel | 2020-09-24 12:32:31 +0200 |
| commit | 4fba98859b819961d8e1fe862b79052ff4b687b8 (patch) | |
| tree | 424380625f3cdc54ea3b8ba2e4fc301e70d9de43 | |
| parent | 82fa58e81d9edc77182aaba4110c3124481e6704 (diff) | |
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>
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index bd473e085aac..e6d142458950 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -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) |