505 sg_classify(struct device *dev, struct scatterlist *sg, struct scatterlist *end,  in sg_classify()  argument
513 	leader = sg;  in sg_classify()
520 	for (++sg; sg < end; ++sg) {  in sg_classify()
522 		addr = SG_ENT_PHYS_ADDRESS(sg);  in sg_classify()
523 		len = sg->length;  in sg_classify()
529 			sg->dma_address = -1;  in sg_classify()
532 			sg->dma_address = -2;  in sg_classify()
539 			leader = sg;  in sg_classify()
561 	struct scatterlist *sg;  in sg_fill()  local
618 	sg = leader;  in sg_fill()
621 		struct scatterlist *last_sg = sg;  in sg_fill()
624 		size = sg->length;  in sg_fill()
625 		paddr = SG_ENT_PHYS_ADDRESS(sg);  in sg_fill()
627 		while (sg+1 < end && (int) sg[1].dma_address == -1) {  in sg_fill()
628 			size += sg[1].length;  in sg_fill()
629 			sg++;  in sg_fill()
642 		while (++last_sg <= sg) {  in sg_fill()
648 	} while (++sg < end && (int) sg->dma_address < 0);  in sg_fill()
653 static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,  in alpha_pci_map_sg()  argument
670 		sg->dma_length = sg->length;  in alpha_pci_map_sg()
671 		sg->dma_address  in alpha_pci_map_sg()
672 		  = pci_map_single_1(pdev, SG_ENT_VIRT_ADDRESS(sg),  in alpha_pci_map_sg()
673 				     sg->length, dac_allowed);  in alpha_pci_map_sg()
674 		return sg->dma_address != 0;  in alpha_pci_map_sg()
677 	start = sg;  in alpha_pci_map_sg()
678 	end = sg + nents;  in alpha_pci_map_sg()
681 	sg_classify(dev, sg, end, alpha_mv.mv_pci_tbi != 0);  in alpha_pci_map_sg()
698 	for (out = sg; sg < end; ++sg) {  in alpha_pci_map_sg()
699 		if ((int) sg->dma_address < 0)  in alpha_pci_map_sg()
701 		if (sg_fill(dev, sg, end, out, arena, max_dma, dac_allowed) < 0)  in alpha_pci_map_sg()
731 static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg,  in alpha_pci_unmap_sg()  argument
758 	for (end = sg + nents; sg < end; ++sg) {  in alpha_pci_unmap_sg()
764 		addr = sg->dma_address;  in alpha_pci_unmap_sg()
765 		size = sg->dma_length;  in alpha_pci_unmap_sg()
772 			      sg - end + nents, addr, size);  in alpha_pci_unmap_sg()
780 			      sg - end + nents, addr, size);  in alpha_pci_unmap_sg()
785 		     sg - end + nents, addr, size);  in alpha_pci_unmap_sg()
804 	DBGA("pci_unmap_sg: %ld entries\n", nents - (end - sg));  in alpha_pci_unmap_sg()