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iommu/arm-smmu: Skip the execution of CMD_PREFETCH_CONFIG
authorZhen Lei <thunder.leizhen@huawei.com>
Tue, 7 Jul 2015 03:30:18 +0000 (04:30 +0100)
committerWill Deacon <will.deacon@arm.com>
Wed, 8 Jul 2015 16:24:39 +0000 (17:24 +0100)
commit5e92946c39ca6abc65e34775a93cc1d1a819c0e3
treee55bc9345eaef4358aa963e510a4dbe3500d8023tree | snapshot
parente2f4c2330f08ba73d9a3c919a3d6ca33dce7d2c2commit | diff
iommu/arm-smmu: Skip the execution of CMD_PREFETCH_CONFIG

Hisilicon SMMUv3 devices treat CMD_PREFETCH_CONFIG as a illegal command,
execute it will trigger GERROR interrupt. Although the gerror code manage
to turn the prefetch into a SYNC, and the system can continue to run
normally, but it's ugly to print error information.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
[will: extended binding documentation]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt diff | blob | history
drivers/iommu/arm-smmu-v3.c diff | blob | history
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