197  * Computes the required size for a surface dma command for backup or
467  * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
472  *                  information about the backup buffer.
475  * Transfer backup data to or from a legacy surface as part of the
478  * The backup buffer will be fenced or idle upon successful completion,
479  * and if the surface needs persistent backup storage, the backup buffer
505 	 * Create a fence object and fence the backup buffer.  in vmw_legacy_srf_dma()
526  *                  information about the backup buffer.
528  * This function will copy backup data to the surface if the
529  * backup buffer is dirty.
548  *                  information about the backup buffer.
550  * This function will copy backup data from the surface.
882 	 * expect a backup buffer to be present.  in vmw_surface_define_ioctl()
891 					&res->backup,  in vmw_surface_define_ioctl()
1238 	if (res->backup->dirty && res->backup_dirty) {  in vmw_gb_surface_bind()
1301 	 * Create a fence object and fence the backup buffer.  in vmw_gb_surface_unbind()
1550 					 &res->backup,  in vmw_gb_surface_define_internal()
1553 			if (res->backup->base.num_pages * PAGE_SIZE <  in vmw_gb_surface_define_internal()
1555 				VMW_DEBUG_USER("Surface backup buffer too small.\n");  in vmw_gb_surface_define_internal()
1556 				vmw_bo_unreference(&res->backup);  in vmw_gb_surface_define_internal()
1571 					&res->backup,  in vmw_gb_surface_define_internal()
1580 		struct vmw_buffer_object *backup = res->backup;  in vmw_gb_surface_define_internal()  local
1582 		ttm_bo_reserve(&backup->base, false, false, NULL);  in vmw_gb_surface_define_internal()
1586 			ret = vmw_bo_dirty_add(backup);  in vmw_gb_surface_define_internal()
1591 		ttm_bo_unreserve(&backup->base);  in vmw_gb_surface_define_internal()
1614 	if (res->backup) {  in vmw_gb_surface_define_internal()
1616 			drm_vma_node_offset_addr(&res->backup->base.base.vma_node);  in vmw_gb_surface_define_internal()
1617 		rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;  in vmw_gb_surface_define_internal()
1663 	if (!srf->res.backup) {  in vmw_gb_surface_reference_internal()
1664 		DRM_ERROR("Shared GB surface is missing a backup buffer.\n");  in vmw_gb_surface_reference_internal()
1669 	mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */  in vmw_gb_surface_reference_internal()
1670 	ret = vmw_user_bo_reference(tfile, srf->res.backup, &backup_handle);  in vmw_gb_surface_reference_internal()
1675 			  "backup buffer.\n");  in vmw_gb_surface_reference_internal()
1694 		drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node);  in vmw_gb_surface_reference_internal()
1695 	rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;  in vmw_gb_surface_reference_internal()