308 			      enum dma_data_direction direction,  in iommu_alloc()  argument
327 				      IOMMU_PAGE_MASK(tbl), direction, attrs);  in iommu_alloc()
433 		     unsigned long mask, enum dma_data_direction direction,  in ppc_iommu_map_sg()  argument
443 	BUG_ON(direction == DMA_NONE);  in ppc_iommu_map_sg()
500 					      direction, attrs);  in ppc_iommu_map_sg()
576 			int nelems, enum dma_data_direction direction,  in ppc_iommu_unmap_sg()  argument
581 	BUG_ON(direction == DMA_NONE);  in ppc_iommu_unmap_sg()
755 			  unsigned long mask, enum dma_data_direction direction,  in iommu_map_page()  argument
763 	BUG_ON(direction == DMA_NONE);  in iommu_map_page()
775 		dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction,  in iommu_map_page()
792 		      size_t size, enum dma_data_direction direction,  in iommu_unmap_page()  argument
797 	BUG_ON(direction == DMA_NONE);  in iommu_unmap_page()
986 		unsigned long *hpa, enum dma_data_direction *direction)  in iommu_tce_xchg()  argument
990 	ret = tbl->it_ops->exchange(tbl, entry, hpa, direction);  in iommu_tce_xchg()
992 	if (!ret && ((*direction == DMA_FROM_DEVICE) ||  in iommu_tce_xchg()
993 			(*direction == DMA_BIDIRECTIONAL)))  in iommu_tce_xchg()