41 int register_trapped_io(struct trapped_io *tiop)  in register_trapped_io()  argument
52 	if ((unsigned long)tiop & (PAGE_SIZE - 1))  in register_trapped_io()
55 	for (k = 0; k < tiop->num_resources; k++) {  in register_trapped_io()
56 		res = tiop->resource + k;  in register_trapped_io()
71 		pages[k] = virt_to_page(tiop);  in register_trapped_io()
73 	tiop->virt_base = vmap(pages, n, VM_MAP, PAGE_NONE);  in register_trapped_io()
74 	if (!tiop->virt_base)  in register_trapped_io()
78 	for (k = 0; k < tiop->num_resources; k++) {  in register_trapped_io()
79 		res = tiop->resource + k;  in register_trapped_io()
81 		       (unsigned long)(tiop->virt_base + len),  in register_trapped_io()
87 	tiop->magic = IO_TRAPPED_MAGIC;  in register_trapped_io()
88 	INIT_LIST_HEAD(&tiop->list);  in register_trapped_io()
92 		list_add(&tiop->list, &trapped_io);  in register_trapped_io()
96 		list_add(&tiop->list, &trapped_mem);  in register_trapped_io()
112 	struct trapped_io *tiop;  in match_trapped_io_handler()  local
118 	list_for_each_entry(tiop, list, list) {  in match_trapped_io_handler()
120 		for (k = 0; k < tiop->num_resources; k++) {  in match_trapped_io_handler()
121 			res = tiop->resource + k;  in match_trapped_io_handler()
124 				return tiop->virt_base + voffs;  in match_trapped_io_handler()
162 static unsigned long lookup_address(struct trapped_io *tiop,  in lookup_address()  argument
166 	unsigned long vaddr = (unsigned long)tiop->virt_base;  in lookup_address()
170 	for (k = 0; k < tiop->num_resources; k++) {  in lookup_address()
171 		res = tiop->resource + k;  in lookup_address()
220 	struct trapped_io *tiop;  in from_device()  local
225 	tiop = lookup_tiop(src_addr);  in from_device()
226 	WARN_ON(!tiop || (tiop->magic != IO_TRAPPED_MAGIC));  in from_device()
228 	src_addr = lookup_address(tiop, src_addr);  in from_device()
234 			      (tiop->minimum_bus_width / 8)),  in from_device()
243 	struct trapped_io *tiop;  in to_device()  local
248 	tiop = lookup_tiop(dst_addr);  in to_device()
249 	WARN_ON(!tiop || (tiop->magic != IO_TRAPPED_MAGIC));  in to_device()
251 	dst_addr = lookup_address(tiop, dst_addr);  in to_device()
257 					(tiop->minimum_bus_width / 8)));  in to_device()