PRQ_RING_MASK     541 drivers/iommu/intel-svm.c 	tail = dmar_readq(iommu->reg + DMAR_PQT_REG) & PRQ_RING_MASK;
PRQ_RING_MASK     542 drivers/iommu/intel-svm.c 	head = dmar_readq(iommu->reg + DMAR_PQH_REG) & PRQ_RING_MASK;
PRQ_RING_MASK     662 drivers/iommu/intel-svm.c 		head = (head + sizeof(*req)) & PRQ_RING_MASK;