243 	return offsetof(struct drm_xe_query_mem_regions, mem_regions[num_managers]);  in calc_mem_regions_size()
250 	struct drm_xe_query_mem_regions *mem_regions;  in query_mem_regions()  local
263 	mem_regions = kzalloc(size, GFP_KERNEL);  in query_mem_regions()
264 	if (XE_IOCTL_DBG(xe, !mem_regions))  in query_mem_regions()
268 	mem_regions->mem_regions[0].mem_class = DRM_XE_MEM_REGION_CLASS_SYSMEM;  in query_mem_regions()
274 	mem_regions->mem_regions[0].instance = 0;  in query_mem_regions()
275 	mem_regions->mem_regions[0].min_page_size = PAGE_SIZE;  in query_mem_regions()
276 	mem_regions->mem_regions[0].total_size = man->size << PAGE_SHIFT;  in query_mem_regions()
278 		mem_regions->mem_regions[0].used = ttm_resource_manager_usage(man);  in query_mem_regions()
279 	mem_regions->num_mem_regions = 1;  in query_mem_regions()
284 			mem_regions->mem_regions[mem_regions->num_mem_regions].mem_class =  in query_mem_regions()
286 			mem_regions->mem_regions[mem_regions->num_mem_regions].instance =  in query_mem_regions()
287 				mem_regions->num_mem_regions;  in query_mem_regions()
288 			mem_regions->mem_regions[mem_regions->num_mem_regions].min_page_size =  in query_mem_regions()
291 			mem_regions->mem_regions[mem_regions->num_mem_regions].total_size =  in query_mem_regions()
296 					&mem_regions->mem_regions  in query_mem_regions()
297 					[mem_regions->num_mem_regions].used,  in query_mem_regions()
298 					&mem_regions->mem_regions  in query_mem_regions()
299 					[mem_regions->num_mem_regions].cpu_visible_used);  in query_mem_regions()
302 			mem_regions->mem_regions[mem_regions->num_mem_regions].cpu_visible_size =  in query_mem_regions()
304 			mem_regions->num_mem_regions++;  in query_mem_regions()
308 	if (!copy_to_user(query_ptr, mem_regions, size))  in query_mem_regions()
313 	kfree(mem_regions);  in query_mem_regions()