The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/qbus/ubareg.h

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    1 /*      $NetBSD: ubareg.h,v 1.16 2000/04/30 11:46:03 ragge Exp $        */
    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 

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