42 	struct vmw_buffer_object *backup = res->backup;  in vmw_resource_mob_attach()  local
43 	struct rb_node **new = &backup->res_tree.rb_node, *parent = NULL;  in vmw_resource_mob_attach()
45 	dma_resv_assert_held(res->backup->base.base.resv);  in vmw_resource_mob_attach()
59 	rb_insert_color(&res->mob_node, &backup->res_tree);  in vmw_resource_mob_attach()
61 	vmw_bo_prio_add(backup, res->used_prio);  in vmw_resource_mob_attach()
70 	struct vmw_buffer_object *backup = res->backup;  in vmw_resource_mob_detach()  local
72 	dma_resv_assert_held(backup->base.base.resv);  in vmw_resource_mob_detach()
74 		rb_erase(&res->mob_node, &backup->res_tree);  in vmw_resource_mob_detach()
76 		vmw_bo_prio_del(backup, res->used_prio);  in vmw_resource_mob_detach()
122 	if (res->backup) {  in vmw_resource_release()
123 		struct ttm_buffer_object *bo = &res->backup->base;  in vmw_resource_release()
139 			vmw_bo_dirty_release(res->backup);  in vmw_resource_release()
141 		vmw_bo_unreference(&res->backup);  in vmw_resource_release()
225 	res->backup = NULL;  in vmw_resource_init()
348  * vmw_resource_buf_alloc - Allocate a backup buffer for a resource.
350  * @res:            The resource for which to allocate a backup buffer.
359 	struct vmw_buffer_object *backup;  in vmw_resource_buf_alloc()  local
362 	if (likely(res->backup)) {  in vmw_resource_buf_alloc()
363 		BUG_ON(res->backup->base.num_pages * PAGE_SIZE < size);  in vmw_resource_buf_alloc()
367 	backup = kzalloc(sizeof(*backup), GFP_KERNEL);  in vmw_resource_buf_alloc()
368 	if (unlikely(!backup))  in vmw_resource_buf_alloc()
371 	ret = vmw_bo_init(res->dev_priv, backup, res->backup_size,  in vmw_resource_buf_alloc()
378 	res->backup = backup;  in vmw_resource_buf_alloc()
390  *                  containing backup data if a bind operation is needed.
420 	 * Handle the case where the backup mob is marked coherent but  in vmw_resource_do_validate()
425 		if (res->backup->dirty && !res->dirty) {  in vmw_resource_do_validate()
429 		} else if (!res->backup->dirty && res->dirty) {  in vmw_resource_do_validate()
445 			vmw_bo_dirty_unmap(res->backup, start, end);  in vmw_resource_do_validate()
467  * @switch_backup:     Backup buffer has been switched.
468  * @new_backup:        Pointer to new backup buffer if command submission
470  * @new_backup_offset: New backup offset if @switch_backup is true.
487 	if (switch_backup && new_backup != res->backup) {  in vmw_resource_unreserve()
488 		if (res->backup) {  in vmw_resource_unreserve()
491 				vmw_bo_dirty_release(res->backup);  in vmw_resource_unreserve()
492 			vmw_bo_unreference(&res->backup);  in vmw_resource_unreserve()
496 			res->backup = vmw_bo_reference(new_backup);  in vmw_resource_unreserve()
506 			res->backup = NULL;  in vmw_resource_unreserve()
509 		vmw_bo_dirty_release(res->backup);  in vmw_resource_unreserve()
528  * vmw_resource_check_buffer - Check whether a backup buffer is needed
533  * @res:            The resource for which to allocate a backup buffer.
537  *                  reserved and validated backup buffer.
550 	if (unlikely(res->backup == NULL)) {  in vmw_resource_check_buffer()
557 	ttm_bo_get(&res->backup->base);  in vmw_resource_check_buffer()
558 	val_buf->bo = &res->backup->base;  in vmw_resource_check_buffer()
569 	ret = ttm_bo_validate(&res->backup->base,  in vmw_resource_check_buffer()
584 		vmw_bo_unreference(&res->backup);  in vmw_resource_check_buffer()
595  * a backup buffer is present for guest-backed resources. However,
609 	if (res->func->needs_backup && res->backup == NULL &&  in vmw_resource_reserve()
613 			DRM_ERROR("Failed to allocate a backup buffer "  in vmw_resource_reserve()
625  *                                    backup buffer
628  * @val_buf:        Backup buffer information.
648  *                         to a backup buffer.
693  * On succesful return, any backup DMA buffer pointed to by @res->backup will
716 	if (res->backup)  in vmw_resource_validate()
717 		val_buf.bo = &res->backup->base;  in vmw_resource_validate()
739 		/* Trylock backup buffers with a NULL ticket. */  in vmw_resource_validate()
757 	else if (!res->func->needs_backup && res->backup) {  in vmw_resource_validate()
759 		vmw_bo_unreference(&res->backup);  in vmw_resource_validate()
774  * Evicts the Guest Backed hardware resource if the backup
778  * both require the backup buffer to be reserved.
896  * vmw_resource_needs_backup - Return whether a resource needs a backup buffer.
935 		/* Wait lock backup buffers with a ticket. */  in vmw_resource_evict_type()
1001 		if (res->backup) {  in vmw_resource_pin()
1002 			vbo = res->backup;  in vmw_resource_pin()
1056 	if (--res->pin_count == 0 && res->backup) {  in vmw_resource_unpin()
1057 		struct vmw_buffer_object *vbo = res->backup;  in vmw_resource_unpin()