iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity
authorYicong Yang <yangyicong@hisilicon.com>
Tue, 16 Aug 2022 11:44:10 +0000 (19:44 +0800)
committerMathieu Poirier <mathieu.poirier@linaro.org>
Thu, 8 Sep 2022 22:22:35 +0000 (16:22 -0600)
commit24b6c7798a0122012ca848ea0d25e973334266b0
tree0951d2c7b9a6a021211ec3168dede63887af4fcc
parent269e633dad16c951449c99cc3bfce46110f5029e
iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity

The DMA operations of HiSilicon PTT device can only work properly with
identical mappings. So add a quirk for the device to force the domain
as passthrough.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/20220816114414.4092-2-yangyicong@huawei.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c