iommu/qcom: Mask TLBI addresses correctly

As with arm-smmu from whence this code was borrowed, the IOVAs passed in
here happen to be at least page-aligned anyway, but still; oh dear.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index 34d0b97..bed948c 100644 (file)
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -155,7 +155,7 @@ static void qcom_iommu_tlb_inv_range_nosync(unsigned long iova, size_t size,
                struct qcom_iommu_ctx *ctx = to_ctx(fwspec, fwspec->ids[i]);
                size_t s = size;
 
-               iova &= ~12UL;
+               iova = (iova >> 12) << 12;
                iova |= ctx->asid;
                do {
                        iommu_writel(ctx, reg, iova);