1753 	 * Since 768MB is plenty of room, and we need to cap to something  in prom_init_mem()
1835  * Allocate room for and instantiate RTAS
1902  * Allocate room for and instantiate Stored Measurement Log (SML)
1979  * Allocate room for and initialize TCE tables
2420 		 * leave some room at the end of the path for appending extra  in prom_check_displays()
2491 		unsigned long room, chunk;  in make_room()  local
2495 		room = alloc_top - alloc_bottom;  in make_room()
2496 		if (room > DEVTREE_CHUNK_SIZE)  in make_room()
2497 			room = DEVTREE_CHUNK_SIZE;  in make_room()
2498 		if (room < PAGE_SIZE)  in make_room()
2500 				   "(no room)\n");  in make_room()
2501 		chunk = alloc_up(room, 0);  in make_room()
2505 		*mem_end = chunk + room;  in make_room()
2515 		void *room = make_room(mem_start, mem_end, 4, 4);	\
2516 		*(__be32 *)room = cpu_to_be32(token);			\
2595 	int l, room, has_phandle = 0;  in scan_dt_build_struct()  local
2601 	room = *mem_end - *mem_start;  in scan_dt_build_struct()
2602 	if (room > 255)  in scan_dt_build_struct()
2603 		room = 255;  in scan_dt_build_struct()
2604 	l = call_prom("package-to-path", 3, 1, node, namep, room);  in scan_dt_build_struct()
2606 		/* Didn't fit?  Get more room. */  in scan_dt_build_struct()
2607 		if (l >= room) {  in scan_dt_build_struct()
2704 	unsigned long mem_start, mem_end, room;  in flatten_device_tree()  local
2710 	 * Check how much room we have between alloc top & bottom (+/- a  in flatten_device_tree()
2713 	room = alloc_top - alloc_bottom - 0x4000;  in flatten_device_tree()
2714 	if (room > DEVTREE_CHUNK_SIZE)  in flatten_device_tree()
2715 		room = DEVTREE_CHUNK_SIZE;  in flatten_device_tree()
2719 	mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);  in flatten_device_tree()
2722 	mem_end = mem_start + room;  in flatten_device_tree()
2729 	/* Build header and make room for mem rsv map */   in flatten_device_tree()