sys/vm/vm_param.h

   1 /*
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * The Mach Operating System project at Carnegie-Mellon University.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      from: @(#)vm_param.h    8.1 (Berkeley) 6/11/93
  37  *
  38  *
  39  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
  40  * All rights reserved.
  41  *
  42  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
  43  *
  44  * Permission to use, copy, modify and distribute this software and
  45  * its documentation is hereby granted, provided that both the copyright
  46  * notice and this permission notice appear in all copies of the
  47  * software, derivative works or modified versions, and any portions
  48  * thereof, and that both notices appear in supporting documentation.
  49  *
  50  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  51  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  52  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  53  *
  54  * Carnegie Mellon requests users of this software to return to
  55  *
  56  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  57  *  School of Computer Science
  58  *  Carnegie Mellon University
  59  *  Pittsburgh PA 15213-3890
  60  *
  61  * any improvements or extensions that they make and grant Carnegie the
  62  * rights to redistribute these changes.
  63  *
  64  * $FreeBSD: src/sys/vm/vm_param.h,v 1.13.2.1 2001/11/03 01:41:10 ps Exp $
  65  * $DragonFly: src/sys/vm/vm_param.h,v 1.2 2003/06/17 04:29:00 dillon Exp $
  66  */
  67
  68 /*
  69  *      Machine independent virtual memory parameters.
  70  */
  71
  72 #ifndef _VM_PARAM_
  73 #define _VM_PARAM_
  74
  75 #include <machine/vmparam.h>
  76
  77 /*
  78  * CTL_VM identifiers
  79  */
  80 #define VM_METER                1       /* struct vmmeter */
  81 #define VM_LOADAVG              2       /* struct loadavg */
  82 #define VM_V_FREE_MIN           3       /* cnt.v_free_min */
  83 #define VM_V_FREE_TARGET        4       /* cnt.v_free_target */
  84 #define VM_V_FREE_RESERVED      5       /* cnt.v_free_reserved */
  85 #define VM_V_INACTIVE_TARGET    6       /* cnt.v_inactive_target */
  86 #define VM_V_CACHE_MIN          7       /* cnt.v_cache_max */
  87 #define VM_V_CACHE_MAX          8       /* cnt.v_cache_min */
  88 #define VM_V_PAGEOUT_FREE_MIN   9       /* cnt.v_pageout_free_min */
  89 #define VM_PAGEOUT_ALGORITHM    10      /* pageout algorithm */
  90 #define VM_SWAPPING_ENABLED     11      /* swapping enabled */
  91 #define VM_MAXID                12      /* number of valid vm ids */
  92
  93 #define CTL_VM_NAMES { \
  94         { 0, 0 }, \
  95         { "vmmeter", CTLTYPE_STRUCT }, \
  96         { "loadavg", CTLTYPE_STRUCT }, \
  97         { "v_free_min", CTLTYPE_INT }, \
  98         { "v_free_target", CTLTYPE_INT }, \
  99         { "v_free_reserved", CTLTYPE_INT }, \
 100         { "v_inactive_target", CTLTYPE_INT }, \
 101         { "v_cache_min", CTLTYPE_INT }, \
 102         { "v_cache_max", CTLTYPE_INT }, \
 103         { "v_pageout_free_min", CTLTYPE_INT}, \
 104         { "pageout_algorithm", CTLTYPE_INT}, \
 105         { "swapping_enabled", CTLTYPE_INT},\
 106 }
 107
 108 /*
 109  *      Return values from the VM routines.
 110  */
 111 #define KERN_SUCCESS            0
 112 #define KERN_INVALID_ADDRESS    1
 113 #define KERN_PROTECTION_FAILURE 2
 114 #define KERN_NO_SPACE           3
 115 #define KERN_INVALID_ARGUMENT   4
 116 #define KERN_FAILURE            5
 117 #define KERN_RESOURCE_SHORTAGE  6
 118 #define KERN_NOT_RECEIVER       7
 119 #define KERN_NO_ACCESS          8
 120
 121 #ifndef ASSEMBLER
 122 #ifdef _KERNEL
 123 #define num_pages(x) \
 124         ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
 125 extern  u_quad_t maxtsiz;
 126 extern  u_quad_t dfldsiz;
 127 extern  u_quad_t maxdsiz;
 128 extern  u_quad_t dflssiz;
 129 extern  u_quad_t maxssiz;
 130 extern  u_quad_t sgrowsiz;
 131 #endif                          /* _KERNEL */
 132 #endif                          /* ASSEMBLER */
 133 #endif                          /* _VM_PARAM_ */