[PATCH] iommu/arm-smmu: Print message when Cavium erratum 27704 was detected
Robert Richter
rrichter at cavium.com
Mon Mar 13 03:39:01 PDT 2017
Firmware is responsible for properly enabling smmu workarounds. Print
a message for better diagnostics when Cavium erratum 27704 was
detected.
Signed-off-by: Robert Richter <rrichter at cavium.com>
---
drivers/iommu/arm-smmu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index abf6496843a6..c88bf8deb958 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -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 */
--
2.11.0
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