366 static int i460_alloc_large_page (struct lp_desc *lp)  in i460_alloc_large_page()  argument
371 	lp->page = alloc_pages(GFP_KERNEL, order);  in i460_alloc_large_page()
372 	if (!lp->page) {  in i460_alloc_large_page()
378 	lp->alloced_map = kzalloc(map_size, GFP_KERNEL);  in i460_alloc_large_page()
379 	if (!lp->alloced_map) {  in i460_alloc_large_page()
380 		__free_pages(lp->page, order);  in i460_alloc_large_page()
385 	lp->paddr = page_to_phys(lp->page);  in i460_alloc_large_page()
386 	lp->refcount = 0;  in i460_alloc_large_page()
391 static void i460_free_large_page (struct lp_desc *lp)  in i460_free_large_page()  argument
393 	kfree(lp->alloced_map);  in i460_free_large_page()
394 	lp->alloced_map = NULL;  in i460_free_large_page()
396 	__free_pages(lp->page, I460_IO_PAGE_SHIFT - PAGE_SHIFT);  in i460_free_large_page()
404 	struct lp_desc *start, *end, *lp;  in i460_insert_memory_large_io_page()  local
425 	for (lp = start; lp <= end; ++lp) {  in i460_insert_memory_large_io_page()
426 		if (!lp->alloced_map)  in i460_insert_memory_large_io_page()
429 		for (idx = ((lp == start) ? start_offset : 0);  in i460_insert_memory_large_io_page()
430 		     idx < ((lp == end) ? (end_offset + 1) : I460_KPAGES_PER_IOPAGE);  in i460_insert_memory_large_io_page()
433 			if (test_bit(idx, lp->alloced_map))  in i460_insert_memory_large_io_page()
438 	for (lp = start, i = 0; lp <= end; ++lp) {  in i460_insert_memory_large_io_page()
439 		if (!lp->alloced_map) {  in i460_insert_memory_large_io_page()
441 			if (i460_alloc_large_page(lp) < 0)  in i460_insert_memory_large_io_page()
443 			pg = lp - i460.lp_desc;  in i460_insert_memory_large_io_page()
445 						     lp->paddr, 0));  in i460_insert_memory_large_io_page()
449 		for (idx = ((lp == start) ? start_offset : 0);  in i460_insert_memory_large_io_page()
450 		     idx < ((lp == end) ? (end_offset + 1) : I460_KPAGES_PER_IOPAGE);  in i460_insert_memory_large_io_page()
453 			mem->pages[i] = lp->page;  in i460_insert_memory_large_io_page()
454 			__set_bit(idx, lp->alloced_map);  in i460_insert_memory_large_io_page()
455 			++lp->refcount;  in i460_insert_memory_large_io_page()
465 	struct lp_desc *start, *end, *lp;  in i460_remove_memory_large_io_page()  local
477 	for (i = 0, lp = start; lp <= end; ++lp) {  in i460_remove_memory_large_io_page()
478 		for (idx = ((lp == start) ? start_offset : 0);  in i460_remove_memory_large_io_page()
479 		     idx < ((lp == end) ? (end_offset + 1) : I460_KPAGES_PER_IOPAGE);  in i460_remove_memory_large_io_page()
483 			__clear_bit(idx, lp->alloced_map);  in i460_remove_memory_large_io_page()
484 			--lp->refcount;  in i460_remove_memory_large_io_page()
488 		if (lp->refcount == 0) {  in i460_remove_memory_large_io_page()
489 			pg = lp - i460.lp_desc;  in i460_remove_memory_large_io_page()
492 			i460_free_large_page(lp);  in i460_remove_memory_large_io_page()