DMA_CCMD_DID     1264 drivers/iommu/intel-iommu.c 		val = DMA_CCMD_DOMAIN_INVL|DMA_CCMD_DID(did);
DMA_CCMD_DID     1267 drivers/iommu/intel-iommu.c 		val = DMA_CCMD_DEVICE_INVL|DMA_CCMD_DID(did)