199  *	@gt: the gtt range
205 static int psb_gtt_attach_pages(struct gtt_range *gt)  in psb_gtt_attach_pages()  argument
209 	WARN_ON(gt->pages);  in psb_gtt_attach_pages()
211 	pages = drm_gem_get_pages(&gt->gem);  in psb_gtt_attach_pages()
215 	gt->npage = gt->gem.size / PAGE_SIZE;  in psb_gtt_attach_pages()
216 	gt->pages = pages;  in psb_gtt_attach_pages()
223  *	@gt: the gtt range
230 static void psb_gtt_detach_pages(struct gtt_range *gt)  in psb_gtt_detach_pages()  argument
232 	drm_gem_put_pages(&gt->gem, gt->pages, true, false);  in psb_gtt_detach_pages()
233 	gt->pages = NULL;  in psb_gtt_detach_pages()
238  *	@gt: range to pin
246 int psb_gtt_pin(struct gtt_range *gt)  in psb_gtt_pin()  argument
249 	struct drm_device *dev = gt->gem.dev;  in psb_gtt_pin()
255 	if (gt->in_gart == 0 && gt->stolen == 0) {  in psb_gtt_pin()
256 		ret = psb_gtt_attach_pages(gt);  in psb_gtt_pin()
259 		ret = psb_gtt_insert(dev, gt, 0);  in psb_gtt_pin()
261 			psb_gtt_detach_pages(gt);  in psb_gtt_pin()
265 				     gt->pages, (gpu_base + gt->offset),  in psb_gtt_pin()
266 				     gt->npage, 0, 0, PSB_MMU_CACHED_MEMORY);  in psb_gtt_pin()
268 	gt->in_gart++;  in psb_gtt_pin()
276  *	@gt: range to pin
285 void psb_gtt_unpin(struct gtt_range *gt)  in psb_gtt_unpin()  argument
287 	struct drm_device *dev = gt->gem.dev;  in psb_gtt_unpin()
302 	WARN_ON(!gt->in_gart);  in psb_gtt_unpin()
304 	gt->in_gart--;  in psb_gtt_unpin()
305 	if (gt->in_gart == 0 && gt->stolen == 0) {  in psb_gtt_unpin()
307 				     (gpu_base + gt->offset), gt->npage, 0, 0);  in psb_gtt_unpin()
308 		psb_gtt_remove(dev, gt);  in psb_gtt_unpin()
309 		psb_gtt_detach_pages(gt);  in psb_gtt_unpin()
339 	struct gtt_range *gt;  in psb_gtt_alloc_range()  local
354 	gt = kzalloc(sizeof(struct gtt_range), GFP_KERNEL);  in psb_gtt_alloc_range()
355 	if (gt == NULL)  in psb_gtt_alloc_range()
357 	gt->resource.name = name;  in psb_gtt_alloc_range()
358 	gt->stolen = backed;  in psb_gtt_alloc_range()
359 	gt->in_gart = backed;  in psb_gtt_alloc_range()
360 	gt->roll = 0;  in psb_gtt_alloc_range()
362 	gt->gem.dev = dev;  in psb_gtt_alloc_range()
363 	ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,  in psb_gtt_alloc_range()
366 		gt->offset = gt->resource.start - r->start;  in psb_gtt_alloc_range()
367 		return gt;  in psb_gtt_alloc_range()
369 	kfree(gt);  in psb_gtt_alloc_range()
376  *	@gt: a mapping created with psb_gtt_alloc_range
381 void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)  in psb_gtt_free_range()  argument
384 	if (gt->mmapping) {  in psb_gtt_free_range()
385 		psb_gtt_unpin(gt);  in psb_gtt_free_range()
386 		gt->mmapping = 0;  in psb_gtt_free_range()
388 	WARN_ON(gt->in_gart && !gt->stolen);  in psb_gtt_free_range()
389 	release_resource(&gt->resource);  in psb_gtt_free_range()
390 	kfree(gt);  in psb_gtt_free_range()