arch/x86/include/sys/vmparam.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * Portions of this source code were derived from Berkeley 4.3 BSD
  32  * under license from the Regents of the University of California.
  33  */
  34
  35 #ifndef _SYS_VMPARAM_H
  36 #define _SYS_VMPARAM_H
  37
  38 #if (defined(_KERNEL) || defined(_KMEMUSER)) && defined(_MACHDEP)
  39 #include <sys/vm_machparam.h>
  40 #endif
  41
  42 #ifdef  __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 #define SSIZE           4096            /* initial stack size */
  47 #define SINCR           4096            /* increment of stack */
  48
  49 /*
  50  * USRSTACK is the top (end) of the user stack.
  51  */
  52 #if defined(__amd64)
  53 #define USRSTACK        USERLIMIT
  54 #define USRSTACK32      0x8048000
  55 #define USRSTACK64_32   USERLIMIT32
  56 #elif defined(__i386)
  57 #define USRSTACK        0x8048000
  58 #define USRSTACK32      USRSTACK
  59 #define USRSTACK64_32   USRSTACK
  60 #endif
  61
  62 /*
  63  * Implementation architecture independent sections of the kernel use
  64  * this section.
  65  */
  66 #if (defined(_KERNEL) || defined(_KMEMUSER)) && !defined(_MACHDEP)
  67
  68 #if defined(_KERNEL) && !defined(_ASM)
  69 extern const unsigned int       _diskrpm;
  70 extern const unsigned long      _pgthresh;
  71 extern const unsigned int       _maxslp;
  72 extern const unsigned long      _maxhandspreadpages;
  73 #endif  /* defined(_KERNEL) && !defined(_ASM) */
  74
  75 #define DISKRPM         _diskrpm
  76 #define PGTHRESH        _pgthresh
  77 #define MAXSLP          _maxslp
  78 #define MAXHANDSPREADPAGES      _maxhandspreadpages
  79
  80 #endif  /* (defined(_KERNEL) || defined(_KMEMUSER)) && !defined(_MACHDEP) */
  81
  82 #ifdef  __cplusplus
  83 }
  84 #endif
  85
  86 #endif  /* _SYS_VMPARAM_H */