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iommu/arm-smmu: Print message when Cavium erratum 27704 was detected

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Firmware is responsible for properly enabling smmu workarounds. Print
a message for better diagnostics when Cavium erratum 27704 was
detected.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Robert Richter 2017-03-13 11:39:01 +01:00 committed by Will Deacon
parent adf5e5168b
commit 53c35dce45
1 changed files with 1 additions and 0 deletions
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drivers/iommu/arm-smmu.c
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@ -1887,6 +1887,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
atomic_add_return(smmu->num_context_banks,
&cavium_smmu_context_count);
smmu->cavium_id_base -= smmu->num_context_banks;
dev_notice(smmu->dev, "\tenabling workaround for Cavium erratum 27704\n");
}
/* ID2 */