From: Robert Richter Date: Mon, 13 Mar 2017 10:39:01 +0000 (+0100) Subject: iommu/arm-smmu: Print message when Cavium erratum 27704 was detected X-Git-Tag: v4.12-rc1~50^2^5~2^2~12 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=53c35dce45713d2a554109c21a8cd617d09eba50;p=karo-tx-linux.git iommu/arm-smmu: Print message when Cavium erratum 27704 was detected Firmware is responsible for properly enabling smmu workarounds. Print a message for better diagnostics when Cavium erratum 27704 was detected. Reviewed-by: Robin Murphy Signed-off-by: Robert Richter Signed-off-by: Will Deacon --- diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index b493c99e17f7..8e16da64e72e 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 */