Commit 6c087e4f authored Nov 02, 2015 by Mitchel Humpherys

iommu/arm-smmu: Use correct mask when printing SID during fault

As per the spec, FRSYNRA contains the SID in the lower 16 bits.
Currently we're masking off all but the lower 8 bits, so we could be
losing bits when we print SIDs. Fix this by using a 16 bit mask.

Change-Id: I4a16c169a52d31b43b2f850a5558eecb64b93902
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>

parent 1cba7830

drivers/iommu/arm-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1258,7 +1258,7 @@ static irqreturn_t arm_smmu_context_fault(int irq, void *dev)
		"soft iova-to-phys=%pa\n", &phys_soft);
		dev_err(smmu->dev,
		"hard iova-to-phys (ATOS)=%pa\n", &phys_atos);
		dev_err(smmu->dev, "SID=0x%x\n", frsynra & 0x1FF);
		dev_err(smmu->dev, "SID=0x%x\n", frsynra & 0xffff);
		}
		ret = IRQ_NONE;
		resume = RESUME_TERMINATE;