sys/dev/qbus/ubareg.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed at Ludd, University of
  17  *      Lule}, Sweden and its contributors.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * UNIBUS/Qbus map table definitions. Not unlike VAX page tables.
  35  * This type of map table is used in more devices than Unibus devices.
  36  */
  37 #define UBA_V           0x80000000      /* PTE entry is valid */
  38 #define UBA_BDPMASK     0x01e00000      /* BDP entries */
  39 #define UBA_BDPSHIFT    21
  40 #define UBA_PFN         0x001fffff      /* PFN map */
  41
  42 #define UBA_PGSHIFT     9
  43 #define UBA_NBPG        (1 << 9)        /* Size of a Unibus map page */
  44 #define UBA_PGOFSET     (UBA_NBPG - 1)
  45
  46 #define UBAIOSIZE       (8*1024)        /* 8K I/O space */
  47