iommu/tegra: smmu: Fix incorrect mask for regbase
This fixes kernel crash because of BUG() in register address
validation.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 7747283..117427e 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -1191,7 +1191,7 @@
smmu->rege[i] = smmu->regs[i] + resource_size(res) - 1;
}
/* Same as "mc" 1st regiter block start address */
- smmu->regbase = (void __iomem *)((u32)smmu->regs[0] & ~PAGE_MASK);
+ smmu->regbase = (void __iomem *)((u32)smmu->regs[0] & PAGE_MASK);
err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size);
if (err)
