diff mbox series

[v2,02/17] iommu/qcom: Mask TLBI addresses correctly

Message ID 3353ab6006c49cb8821f298523f38c5f7dc1d00d.1565892337.git.robin.murphy@arm.com (mailing list archive)
State New, archived
Headers show
Series [v2,01/17] iommu/arm-smmu: Mask TLBI address correctly | expand

Commit Message

Robin Murphy Aug. 15, 2019, 6:37 p.m. UTC 
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>
---
 drivers/iommu/qcom_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index 34d0b9783b3e..bed948c3058a 100644
--- 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);