188  *	@gt: the gtt range
194 static int psb_gtt_attach_pages(struct gtt_range *gt)  in psb_gtt_attach_pages()  argument
198 	WARN_ON(gt->pages);  in psb_gtt_attach_pages()
200 	pages = drm_gem_get_pages(&gt->gem);  in psb_gtt_attach_pages()
204 	gt->npage = gt->gem.size / PAGE_SIZE;  in psb_gtt_attach_pages()
205 	gt->pages = pages;  in psb_gtt_attach_pages()
212  *	@gt: the gtt range
219 static void psb_gtt_detach_pages(struct gtt_range *gt)  in psb_gtt_detach_pages()  argument
221 	drm_gem_put_pages(&gt->gem, gt->pages, true, false);  in psb_gtt_detach_pages()
222 	gt->pages = NULL;  in psb_gtt_detach_pages()
227  *	@gt: range to pin
235 int psb_gtt_pin(struct gtt_range *gt)  in psb_gtt_pin()  argument
238 	struct drm_device *dev = gt->gem.dev;  in psb_gtt_pin()
244 	if (gt->in_gart == 0 && gt->stolen == 0) {  in psb_gtt_pin()
245 		ret = psb_gtt_attach_pages(gt);  in psb_gtt_pin()
248 		ret = psb_gtt_insert(dev, gt, 0);  in psb_gtt_pin()
250 			psb_gtt_detach_pages(gt);  in psb_gtt_pin()
254 				     gt->pages, (gpu_base + gt->offset),  in psb_gtt_pin()
255 				     gt->npage, 0, 0, PSB_MMU_CACHED_MEMORY);  in psb_gtt_pin()
257 	gt->in_gart++;  in psb_gtt_pin()
265  *	@gt: range to pin
274 void psb_gtt_unpin(struct gtt_range *gt)  in psb_gtt_unpin()  argument
276 	struct drm_device *dev = gt->gem.dev;  in psb_gtt_unpin()
291 	WARN_ON(!gt->in_gart);  in psb_gtt_unpin()
293 	gt->in_gart--;  in psb_gtt_unpin()
294 	if (gt->in_gart == 0 && gt->stolen == 0) {  in psb_gtt_unpin()
296 				     (gpu_base + gt->offset), gt->npage, 0, 0);  in psb_gtt_unpin()
297 		psb_gtt_remove(dev, gt);  in psb_gtt_unpin()
298 		psb_gtt_detach_pages(gt);  in psb_gtt_unpin()
328 	struct gtt_range *gt;  in psb_gtt_alloc_range()  local
343 	gt = kzalloc(sizeof(struct gtt_range), GFP_KERNEL);  in psb_gtt_alloc_range()
344 	if (gt == NULL)  in psb_gtt_alloc_range()
346 	gt->resource.name = name;  in psb_gtt_alloc_range()
347 	gt->stolen = backed;  in psb_gtt_alloc_range()
348 	gt->in_gart = backed;  in psb_gtt_alloc_range()
349 	gt->roll = 0;  in psb_gtt_alloc_range()
351 	gt->gem.dev = dev;  in psb_gtt_alloc_range()
352 	ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,  in psb_gtt_alloc_range()
355 		gt->offset = gt->resource.start - r->start;  in psb_gtt_alloc_range()
356 		return gt;  in psb_gtt_alloc_range()
358 	kfree(gt);  in psb_gtt_alloc_range()
365  *	@gt: a mapping created with psb_gtt_alloc_range
370 void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)  in psb_gtt_free_range()  argument
373 	if (gt->mmapping) {  in psb_gtt_free_range()
374 		psb_gtt_unpin(gt);  in psb_gtt_free_range()
375 		gt->mmapping = 0;  in psb_gtt_free_range()
377 	WARN_ON(gt->in_gart && !gt->stolen);  in psb_gtt_free_range()
378 	release_resource(&gt->resource);  in psb_gtt_free_range()
379 	kfree(gt);  in psb_gtt_free_range()