iommu/arm-smmu: Print context fault information

Print context fault information when the fault was not handled by report_iommu_fault. Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com> [will: fixed string formatting] Signed-off-by: Will Deacon <will.deacon@arm.com>
git-mirror · Oct 9, 2013 · 2ef0f03 · 2ef0f03
1 parent 44a08de
commit 2ef0f03
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
@@ -590,6 +590,9 @@ static irqreturn_t arm_smmu_context_fault(int irq, void *dev)
 		ret = IRQ_HANDLED;
 		resume = RESUME_RETRY;
 	} else {
+		dev_err_ratelimited(smmu->dev,
+		    "Unhandled context fault: iova=0x%08lx, fsynr=0x%x, cb=%d\n",
+		    iova, fsynr, root_cfg->cbndx);
 		ret = IRQ_NONE;
 		resume = RESUME_TERMINATE;
 	}