227 	struct etnaviv_vram_mapping *mapping;  in etnaviv_gem_get_vram_mapping()  local
229 	list_for_each_entry(mapping, &obj->vram_list, obj_node) {  in etnaviv_gem_get_vram_mapping()
230 		if (mapping->mmu == mmu)  in etnaviv_gem_get_vram_mapping()
231 			return mapping;  in etnaviv_gem_get_vram_mapping()
237 void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping)  in etnaviv_gem_mapping_reference()  argument
239 	struct etnaviv_gem_object *etnaviv_obj = mapping->object;  in etnaviv_gem_mapping_reference()
244 	WARN_ON(mapping->use == 0);  in etnaviv_gem_mapping_reference()
245 	mapping->use += 1;  in etnaviv_gem_mapping_reference()
249 void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)  in etnaviv_gem_mapping_unreference()  argument
251 	struct etnaviv_gem_object *etnaviv_obj = mapping->object;  in etnaviv_gem_mapping_unreference()
254 	WARN_ON(mapping->use == 0);  in etnaviv_gem_mapping_unreference()
255 	mapping->use -= 1;  in etnaviv_gem_mapping_unreference()
265 	struct etnaviv_vram_mapping *mapping;  in etnaviv_gem_mapping_get()  local
270 	mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);  in etnaviv_gem_mapping_get()
271 	if (mapping) {  in etnaviv_gem_mapping_get()
276 		 * the MMU owns this mapping to close this race.  in etnaviv_gem_mapping_get()
278 		if (mapping->use == 0) {  in etnaviv_gem_mapping_get()
280 			if (mapping->mmu == gpu->mmu)  in etnaviv_gem_mapping_get()
281 				mapping->use += 1;  in etnaviv_gem_mapping_get()
283 				mapping = NULL;  in etnaviv_gem_mapping_get()
285 			if (mapping)  in etnaviv_gem_mapping_get()
288 			mapping->use += 1;  in etnaviv_gem_mapping_get()
300 	 * See if we have a reaped vram mapping we can re-use before  in etnaviv_gem_mapping_get()
301 	 * allocating a fresh mapping.  in etnaviv_gem_mapping_get()
303 	mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, NULL);  in etnaviv_gem_mapping_get()
304 	if (!mapping) {  in etnaviv_gem_mapping_get()
305 		mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);  in etnaviv_gem_mapping_get()
306 		if (!mapping) {  in etnaviv_gem_mapping_get()
311 		INIT_LIST_HEAD(&mapping->scan_node);  in etnaviv_gem_mapping_get()
312 		mapping->object = etnaviv_obj;  in etnaviv_gem_mapping_get()
314 		list_del(&mapping->obj_node);  in etnaviv_gem_mapping_get()
317 	mapping->mmu = gpu->mmu;  in etnaviv_gem_mapping_get()
318 	mapping->use = 1;  in etnaviv_gem_mapping_get()
321 				    mapping);  in etnaviv_gem_mapping_get()
323 		kfree(mapping);  in etnaviv_gem_mapping_get()
325 		list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);  in etnaviv_gem_mapping_get()
335 	return mapping;  in etnaviv_gem_mapping_get()
528 	struct etnaviv_vram_mapping *mapping, *tmp;  in etnaviv_gem_free_object()  local
537 	list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,  in etnaviv_gem_free_object()
539 		struct etnaviv_iommu *mmu = mapping->mmu;  in etnaviv_gem_free_object()
541 		WARN_ON(mapping->use);  in etnaviv_gem_free_object()
544 			etnaviv_iommu_unmap_gem(mmu, mapping);  in etnaviv_gem_free_object()
546 		list_del(&mapping->obj_node);  in etnaviv_gem_free_object()
547 		kfree(mapping);  in etnaviv_gem_free_object()
632 		struct address_space *mapping;  in etnaviv_gem_new_handle()  local
641 		mapping = obj->filp->f_mapping;  in etnaviv_gem_new_handle()
642 		mapping_set_gfp_mask(mapping, GFP_HIGHUSER |  in etnaviv_gem_new_handle()