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From: Robin Murphy <robin.murphy@arm.com>
To: will@kernel.org
Cc: bjorn.andersson@linaro.org, iommu@lists.linux-foundation.org,
	gregory.clement@bootlin.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 02/17] iommu/qcom: Mask TLBI addresses correctly
Date: Thu, 15 Aug 2019 19:37:22 +0100
Message-ID: <3353ab6006c49cb8821f298523f38c5f7dc1d00d.1565892337.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1565892337.git.robin.murphy@arm.com>

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 --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);
-- 
2.21.0.dirty

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Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-15 18:37 [PATCH v2 00/17] Arm SMMU refactoring Robin Murphy
2019-08-15 18:37 ` [PATCH v2 01/17] iommu/arm-smmu: Mask TLBI address correctly Robin Murphy
2019-08-15 18:37 ` Robin Murphy [this message]
2019-08-15 18:37 ` [PATCH v2 03/17] iommu/arm-smmu: Convert GR0 registers to bitfields Robin Murphy
2019-08-15 18:37 ` [PATCH v2 04/17] iommu/arm-smmu: Convert GR1 " Robin Murphy
2019-08-15 18:37 ` [PATCH v2 05/17] iommu/arm-smmu: Convert context bank " Robin Murphy
2019-08-15 18:37 ` [PATCH v2 06/17] iommu/arm-smmu: Rework cb_base handling Robin Murphy
2019-08-15 18:37 ` [PATCH v2 07/17] iommu/arm-smmu: Split arm_smmu_tlb_inv_range_nosync() Robin Murphy
2019-08-15 18:37 ` [PATCH v2 08/17] iommu/arm-smmu: Get rid of weird "atomic" write Robin Murphy
2019-08-15 18:37 ` [PATCH v2 09/17] iommu/arm-smmu: Abstract GR1 accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 10/17] iommu/arm-smmu: Abstract context bank accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 11/17] iommu/arm-smmu: Abstract GR0 accesses Robin Murphy
2019-08-15 18:37 ` [PATCH v2 12/17] iommu/arm-smmu: Rename arm-smmu-regs.h Robin Murphy
2019-08-15 18:37 ` [PATCH v2 13/17] iommu/arm-smmu: Add implementation infrastructure Robin Murphy
2019-08-15 18:37 ` [PATCH v2 14/17] iommu/arm-smmu: Move Secure access quirk to implementation Robin Murphy
2019-08-15 18:37 ` [PATCH v2 15/17] iommu/arm-smmu: Add configuration implementation hook Robin Murphy
2019-08-15 18:37 ` [PATCH v2 16/17] iommu/arm-smmu: Add reset " Robin Murphy
2019-08-15 18:37 ` [PATCH v2 17/17] iommu/arm-smmu: Add context init " Robin Murphy
2019-08-20 10:15   ` Vivek Gautam
2019-08-20 13:00     ` Robin Murphy
2019-08-19 15:56 ` [PATCH v2 00/17] Arm SMMU refactoring Will Deacon
2019-08-19 18:10   ` Robin Murphy
2019-08-20  7:04     ` Will Deacon
2019-08-20  8:20 ` Vivek Gautam

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