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(parent: 4a3928c) | patch
iommu/arm-smmu-v3: Warn about missing IRQs
authorRobin Murphy <robin.murphy@arm.com>
Mon, 30 Oct 2017 12:14:02 +0000 (12:14 +0000)
committerWill Deacon <will.deacon@arm.com>
Tue, 27 Mar 2018 13:12:03 +0000 (14:12 +0100)
commit4c8996d7d7334c1adfbfdaaddc979094f7811ce6
tree47dc3f8d5c6a58344dbf4e109033b53a4ed63dcftree | snapshot
parent4a3928c6f8a53fa1aed28ccba227742486e8ddcbcommit | diff
iommu/arm-smmu-v3: Warn about missing IRQs

It is annoyingly non-obvious when DMA transactions silently go missing
due to undetected SMMU faults. Help skip the first few debugging steps
in those situations by making it clear when we have neither wired IRQs
nor MSIs with which to raise error conditions.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
drivers/iommu/arm-smmu-v3.c diff | blob | history
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