2476 static void __init *make_room(unsigned long *mem_start, unsigned long *mem_end,  in make_room()  argument
2481 	*mem_start = ALIGN(*mem_start, align);  in make_room()
2482 	while ((*mem_start + needed) > *mem_end) {  in make_room()
2500 	ret = (void *)*mem_start;  in make_room()
2501 	*mem_start += needed;  in make_room()
2506 #define dt_push_token(token, mem_start, mem_end) do { 			\  argument
2507 		void *room = make_room(mem_start, mem_end, 4, 4);	\
2532 					 unsigned long *mem_start,  in scan_dt_build_strings()  argument
2545 		namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);  in scan_dt_build_strings()
2548 			*mem_start = (unsigned long)namep;  in scan_dt_build_strings()
2554  			*mem_start = (unsigned long)namep;  in scan_dt_build_strings()
2561 			*mem_start = (unsigned long)namep;  in scan_dt_build_strings()
2565 			*mem_start = (unsigned long)namep + prom_strlen(namep) + 1;  in scan_dt_build_strings()
2566 			dt_string_end = *mem_start;  in scan_dt_build_strings()
2574 		scan_dt_build_strings(child, mem_start, mem_end);  in scan_dt_build_strings()
2579 static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,  in scan_dt_build_struct()  argument
2589 	dt_push_token(OF_DT_BEGIN_NODE, mem_start, mem_end);  in scan_dt_build_struct()
2592 	namep = (char *)*mem_start;  in scan_dt_build_struct()
2593 	room = *mem_end - *mem_start;  in scan_dt_build_struct()
2600 			if (l >= *mem_end - *mem_start)  in scan_dt_build_struct()
2601 				namep = make_room(mem_start, mem_end, l+1, 1);  in scan_dt_build_struct()
2617 		*mem_start = ALIGN((unsigned long)lp + 1, 4);  in scan_dt_build_struct()
2656 		dt_push_token(OF_DT_PROP, mem_start, mem_end);  in scan_dt_build_struct()
2657 		dt_push_token(l, mem_start, mem_end);  in scan_dt_build_struct()
2658 		dt_push_token(soff, mem_start, mem_end);  in scan_dt_build_struct()
2661 		valp = make_room(mem_start, mem_end, l, 4);  in scan_dt_build_struct()
2663 		*mem_start = ALIGN(*mem_start, 4);  in scan_dt_build_struct()
2675 			dt_push_token(OF_DT_PROP, mem_start, mem_end);  in scan_dt_build_struct()
2676 			dt_push_token(4, mem_start, mem_end);  in scan_dt_build_struct()
2677 			dt_push_token(soff, mem_start, mem_end);  in scan_dt_build_struct()
2678 			valp = make_room(mem_start, mem_end, 4, 4);  in scan_dt_build_struct()
2686 		scan_dt_build_struct(child, mem_start, mem_end);  in scan_dt_build_struct()
2690 	dt_push_token(OF_DT_END_NODE, mem_start, mem_end);  in scan_dt_build_struct()
2696 	unsigned long mem_start, mem_end, room;  in flatten_device_tree()  local
2711 	mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);  in flatten_device_tree()
2712 	if (mem_start == 0)  in flatten_device_tree()
2714 	mem_end = mem_start + room;  in flatten_device_tree()
2722 	mem_start = ALIGN(mem_start, 4);  in flatten_device_tree()
2723 	hdr = make_room(&mem_start, &mem_end,  in flatten_device_tree()
2726 	rsvmap = make_room(&mem_start, &mem_end, sizeof(mem_reserve_map), 8);  in flatten_device_tree()
2729 	mem_start = PAGE_ALIGN(mem_start);  in flatten_device_tree()
2730 	dt_string_start = mem_start;  in flatten_device_tree()
2731 	mem_start += 4; /* hole */  in flatten_device_tree()
2734 	namep = make_room(&mem_start, &mem_end, 16, 1);  in flatten_device_tree()
2736 	mem_start = (unsigned long)namep + prom_strlen(namep) + 1;  in flatten_device_tree()
2740 	scan_dt_build_strings(root, &mem_start, &mem_end);  in flatten_device_tree()
2741 	dt_string_end = mem_start;  in flatten_device_tree()
2744 	mem_start = PAGE_ALIGN(mem_start);  in flatten_device_tree()
2745 	dt_struct_start = mem_start;  in flatten_device_tree()
2747 	scan_dt_build_struct(root, &mem_start, &mem_end);  in flatten_device_tree()
2748 	dt_push_token(OF_DT_END, &mem_start, &mem_end);  in flatten_device_tree()
2749 	dt_struct_end = PAGE_ALIGN(mem_start);  in flatten_device_tree()