Cross Reference: /drivers/char/agp/backend.c

Lines Matching refs:bridge
69 	struct agp_bridge_data *bridge;
71 	bridge = agp_find_bridge(pdev);
73 	if (!bridge)
76 	if (atomic_read(&bridge->agp_in_use))
78 	atomic_inc(&bridge->agp_in_use);
79 	return bridge;
92 void agp_backend_release(struct agp_bridge_data *bridge)
95 	if (bridge)
96 		atomic_dec(&bridge->agp_in_use);
137 static int agp_backend_initialize(struct agp_bridge_data *bridge)
141 	bridge->max_memory_agp = agp_find_max();
142 	bridge->version = &agp_current_version;
144 	if (bridge->driver->needs_scratch_page) {
145 		struct page *page = bridge->driver->agp_alloc_page(bridge);
148 			dev_err(&bridge->dev->dev,
153 		bridge->scratch_page_page = page;
154 		bridge->scratch_page_dma = page_to_phys(page);
156 		bridge->scratch_page = bridge->driver->mask_memory(bridge,
157 						   bridge->scratch_page_dma, 0);
160 	size_value = bridge->driver->fetch_size();
162 		dev_err(&bridge->dev->dev, "can't determine aperture size\n");
166 	if (bridge->driver->create_gatt_table(bridge)) {
167 		dev_err(&bridge->dev->dev,
174 	bridge->key_list = vzalloc(PAGE_SIZE * 4);
175 	if (bridge->key_list == NULL) {
176 		dev_err(&bridge->dev->dev,
185 	if (bridge->driver->configure()) {
186 		dev_err(&bridge->dev->dev, "error configuring host chipset\n");
190 	INIT_LIST_HEAD(&bridge->mapped_list);
191 	spin_lock_init(&bridge->mapped_lock);
196 	if (bridge->driver->needs_scratch_page) {
197 		struct page *page = bridge->scratch_page_page;
199 		bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_UNMAP);
200 		bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_FREE);
203 		bridge->driver->free_gatt_table(bridge);
205 		vfree(bridge->key_list);
206 		bridge->key_list = NULL;
212 static void agp_backend_cleanup(struct agp_bridge_data *bridge)
214 	if (bridge->driver->cleanup)
215 		bridge->driver->cleanup();
216 	if (bridge->driver->free_gatt_table)
217 		bridge->driver->free_gatt_table(bridge);
219 	vfree(bridge->key_list);
220 	bridge->key_list = NULL;
222 	if (bridge->driver->agp_destroy_page &&
223 	    bridge->driver->needs_scratch_page) {
224 		struct page *page = bridge->scratch_page_page;
226 		bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_UNMAP);
227 		bridge->driver->agp_destroy_page(page, AGP_PAGE_DESTROY_FREE);
237 	struct agp_bridge_data *bridge;
239 	bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
240 	if (!bridge)
243 	atomic_set(&bridge->agp_in_use, 0);
244 	atomic_set(&bridge->current_memory_agp, 0);
247 		agp_bridge = bridge;
249 	return bridge;
254 void agp_put_bridge(struct agp_bridge_data *bridge)
256         kfree(bridge);
264 int agp_add_bridge(struct agp_bridge_data *bridge)
273 	if (!bridge->dev) {
280 	if (!try_module_get(bridge->driver->owner)) {
281 		dev_info(&bridge->dev->dev, "can't lock chipset driver\n");
286 	error = agp_backend_initialize(bridge);
288 		dev_info(&bridge->dev->dev,
296 			dev_info(&bridge->dev->dev,
301 		dev_info(&bridge->dev->dev, "AGP aperture is %dM @ 0x%lx\n",
302 			 bridge->driver->fetch_size(), bridge->gart_bus_addr);
306 	list_add(&bridge->list, &agp_bridges);
310 	agp_backend_cleanup(bridge);
312 	module_put(bridge->driver->owner);
314 	agp_put_bridge(bridge);
320 void agp_remove_bridge(struct agp_bridge_data *bridge)
322 	agp_backend_cleanup(bridge);
323 	list_del(&bridge->list);
326 	module_put(bridge->driver->owner);