/* $NetBSD: ubareg.h,v 1.17 2017/05/22 17:22:29 ragge Exp $ */ /* * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * UNIBUS/Qbus map table definitions. Not unlike VAX page tables. * This type of map table is used in more devices than Unibus devices. */ #define UBA_V 0x80000000 /* PTE entry is valid */ #define UBA_BDPMASK 0x01e00000 /* BDP entries */ #define UBA_BDPSHIFT 21 #define UBA_PFN 0x001fffff /* PFN map */ #define UBA_PGSHIFT 9 #define UBA_NBPG (1 << 9) /* Size of a Unibus map page */ #define UBA_PGOFSET (UBA_NBPG - 1) #define UBAIOSIZE (8*1024) /* 8K I/O space */ |