80  * be mapped cache-able and is only applicable to send windows.
280  * These registers are common to send/receive windows although they
281  * differ for user/kernel windows. As we resolve the TODOs we may
329 	 * TODO: Can we mfspr(AMR) even for user windows?  in init_xlate_regs()
364  * Design note: For NX receive windows, NX allocates the FIFO buffer in OPAL
368  *	write the per-chip RX FIFO addresses to the windows during boot-up
528 		pr_err("Too many (%d) open windows\n", VAS_WINDOWS_PER_CHIP);  in vas_assign_window_id()
589  *        (so both send and receive windows are on the same VAS instance)
592  * NOTE: We access ->windows[] table and assume that vinst->mutex is held.
604 	rxwin = vinst->windows[winid];  in get_user_rxwin()
639  * We have two tables of windows in a VAS instance. The first one,
640  * ->windows[], contains all the windows in the instance and allows
641  * looking up a window by its id. It is used to look up send windows
642  * during fault handling and receive windows when pairing user space
643  * send/receive windows.
645  * The second table, ->rxwin[], contains receive windows that are
650  * Here, we save @window in the ->windows[] table. If it is a receive
669 	WARN_ON_ONCE(vinst->windows[id] != NULL);  in set_vinst_win()
670 	vinst->windows[id] = window;  in set_vinst_win()
676  * Clear this window from the table(s) of windows for this VAS instance.
691 	WARN_ON_ONCE(vinst->windows[id] != window);  in clear_vinst_win()
692 	vinst->windows[id] = NULL;  in clear_vinst_win()
706 	 *	->notify_disable	False for NX windows  in init_winctx_for_rxwin()
707 	 *	->intr_disable		False for Fault Windows  in init_winctx_for_rxwin()
708 	 *	->xtra_write		False for NX windows  in init_winctx_for_rxwin()
709 	 *	->notify_early		NA for NX windows  in init_winctx_for_rxwin()
710 	 *	->rsvd_txbuf_count	NA for Rx windows  in init_winctx_for_rxwin()
711 	 *	->lpid, ->pid, ->tid	NA for Rx windows  in init_winctx_for_rxwin()
793 		 * Section 3.1.4.32: NX Windows must not disable notification,  in rx_win_args_valid()
805 		 * Section 3.1.4.32: Fault windows must disable notification  in rx_win_args_valid()
813 		 * User receive windows are only for fast-thread-wakeup  in rx_win_args_valid()
929 	 *	->notify_disable	False for NX windows  in init_winctx_for_txwin()
930 	 *	->xtra_write		False for NX windows  in init_winctx_for_txwin()
931 	 *	->notify_early		NA for NX windows  in init_winctx_for_txwin()
932 	 *	->lnotify_lpid		NA for Tx windows  in init_winctx_for_txwin()
933 	 *	->lnotify_pid		NA for Tx windows  in init_winctx_for_txwin()
934 	 *	->lnotify_tid		NA for Tx windows  in init_winctx_for_txwin()
935 	 *	->tx_win_cred_mode	Ignore for now for NX windows  in init_winctx_for_txwin()
936 	 *	->rx_win_cred_mode	Ignore for now for NX windows  in init_winctx_for_txwin()
1005 	 * receive window (applicable only to FTW windows), use the vasid  in vas_tx_win_open()
1043 	 * kernel's address space. For user windows, user must issue an  in vas_tx_win_open()
1095 	 * Only NX windows are supported for now and hardware assumes  in vas_paste_crb()
1096 	 * report-enable flag is set for NX windows. Ensure software  in vas_paste_crb()