sys/arch/sun3/include/vmparam3x.h

   1 /*      $NetBSD: vmparam3x.h,v 1.18 2005/12/11 12:19:21 christos Exp $  */
   2
   3 /*
   4  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * the Systems Programming Group of the University of Utah Computer
   9  * Science Department.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      from: Utah $Hdr: vmparam.h 1.16 91/01/18$
  36  *      from: @(#)vmparam.h     7.3 (Berkeley) 5/7/91
  37  *      vmparam.h,v 1.2 1993/05/22 07:58:38 cgd Exp
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  *      from: Utah $Hdr: vmparam.h 1.16 91/01/18$
  75  *      from: @(#)vmparam.h     7.3 (Berkeley) 5/7/91
  76  *      vmparam.h,v 1.2 1993/05/22 07:58:38 cgd Exp
  77  */
  78
  79 /*
  80  * Machine dependent constants for Sun3X
  81  */
  82
  83 /*
  84  * USRSTACK is the top (end) of the user stack.
  85  */
  86 #define USRSTACK        KERNBASE        /* High end of user stack */
  87
  88 /*
  89  * Virtual memory related constants, all in bytes
  90  */
  91 #ifndef MAXTSIZ
  92 #define MAXTSIZ         (8*1024*1024)           /* max text size */
  93 #endif
  94 #ifndef DFLDSIZ
  95 #define DFLDSIZ         (32*1024*1024)          /* initial data size limit */
  96 #endif
  97 #ifndef MAXDSIZ
  98 #define MAXDSIZ         (128*1024*1024)         /* max data size */
  99 #endif
 100 #ifndef DFLSSIZ
 101 #define DFLSSIZ         (2*1024*1024)           /* initial stack size limit */
 102 #endif
 103 #ifndef MAXSSIZ
 104 #define MAXSSIZ         (32*1024*1024)          /* max stack size */
 105 #endif
 106
 107 /*
 108  * PTEs for mapping user space into the kernel for phyio operations.
 109  * The actual limitation for physio requests will be the DVMA space,
 110  * and that is fixed by hardware design at 1MB.  We could make the
 111  * physio map larger than that, but it would not buy us much.
 112  */
 113 #ifndef USRIOSIZE
 114 #define USRIOSIZE       128     /* 1 MB */
 115 #endif