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The drivers which use shared iommu, bitmask need xor BIT(DRIVER_TYPE), and DRIVER_TYPE is defined in mpp_common.h. Such as, avsd、vdpu、iep add vdpp use share iommu, then bitmask = BIT(DRIVER_VDPU1) | BIT(DRIVER_VDPU2) | BIT(DRIVER_IEP2) | BIT(DRIVER_VDPP). Change-Id: Ifc8de7422eaa11ba33e9f5e93e4f4b094207a72e Signed-off-by: Ding Wei <leo.ding@rock-chips.com>