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. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  *      from: @(#)vm_param.h    8.1 (Berkeley) 6/11/93
  33  *
  34  *
  35  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
  36  * All rights reserved.
  37  *
  38  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
  39  *
  40  * Permission to use, copy, modify and distribute this software and
  41  * its documentation is hereby granted, provided that both the copyright
  42  * notice and this permission notice appear in all copies of the
  43  * software, derivative works or modified versions, and any portions
  44  * thereof, and that both notices appear in supporting documentation.
  45  *
  46  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  47  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  48  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  49  *
  50  * Carnegie Mellon requests users of this software to return to
  51  *
  52  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  53  *  School of Computer Science
  54  *  Carnegie Mellon University
  55  *  Pittsburgh PA 15213-3890
  56  *
  57  * any improvements or extensions that they make and grant Carnegie the
  58  * rights to redistribute these changes.
  59  *
  60  * $FreeBSD: src/sys/vm/vm_param.h,v 1.13.2.1 2001/11/03 01:41:10 ps Exp $
  61  * $DragonFly: src/sys/vm/vm_param.h,v 1.5 2006/09/12 18:41:32 dillon Exp $
  62  */
  63
  64 /*
  65  *      Machine independent virtual memory parameters.
  66  */
  67
  68 #ifndef _VM_VM_PARAM_H_
  69 #define _VM_VM_PARAM_H_
  70
  71 #ifndef _SYS_TYPES_H_
  72 #include <sys/types.h>
  73 #endif
  74 #ifndef _MACHINE_VMPARAM_H_
  75 #include <machine/vmparam.h>
  76 #endif
  77
  78 /*
  79  * CTL_VM identifiers
  80  */
  81 #define VM_METER                1       /* struct vmmeter */
  82 #define VM_LOADAVG              2       /* struct loadavg */
  83 #define VM_V_FREE_MIN           3       /* cnt.v_free_min */
  84 #define VM_V_FREE_TARGET        4       /* cnt.v_free_target */
  85 #define VM_V_FREE_RESERVED      5       /* cnt.v_free_reserved */
  86 #define VM_V_INACTIVE_TARGET    6       /* cnt.v_inactive_target */
  87 #define VM_V_CACHE_MIN          7       /* cnt.v_cache_max */
  88 #define VM_V_CACHE_MAX          8       /* cnt.v_cache_min */
  89 #define VM_V_PAGEOUT_FREE_MIN   9       /* cnt.v_pageout_free_min */
  90 #define VM_PAGEOUT_ALGORITHM    10      /* pageout algorithm */
  91 #define VM_SWAPPING_ENABLED     11      /* swapping enabled */
  92 #define VM_MAXID                12      /* number of valid vm ids */
  93
  94 #define CTL_VM_NAMES { \
  95         { 0, 0 }, \
  96         { "vmmeter", CTLTYPE_STRUCT }, \
  97         { "loadavg", CTLTYPE_STRUCT }, \
  98         { "v_free_min", CTLTYPE_INT }, \
  99         { "v_free_target", CTLTYPE_INT }, \
 100         { "v_free_reserved", CTLTYPE_INT }, \
 101         { "v_inactive_target", CTLTYPE_INT }, \
 102         { "v_cache_min", CTLTYPE_INT }, \
 103         { "v_cache_max", CTLTYPE_INT }, \
 104         { "v_pageout_free_min", CTLTYPE_INT}, \
 105         { "pageout_algorithm", CTLTYPE_INT}, \
 106         { "swapping_enabled", CTLTYPE_INT},\
 107 }
 108
 109 /*
 110  * Structure for swap device statistics
 111  */
 112 #define XSWDEV_VERSION  1
 113
 114 struct xswdev {
 115         size_t  xsw_size;
 116         int     xsw_version;
 117         int     xsw_flags;
 118         dev_t   xsw_dev;
 119         size_t  xsw_blksize;
 120         size_t  xsw_nblks;
 121         size_t  xsw_used;
 122 };
 123
 124 /*
 125  *      Return values from the VM routines.
 126  */
 127 #define KERN_SUCCESS            0
 128 #define KERN_INVALID_ADDRESS    1
 129 #define KERN_PROTECTION_FAILURE 2
 130 #define KERN_NO_SPACE           3
 131 #define KERN_INVALID_ARGUMENT   4
 132 #define KERN_FAILURE            5
 133 #define KERN_RESOURCE_SHORTAGE  6
 134 #define KERN_NOT_RECEIVER       7
 135 #define KERN_NO_ACCESS          8
 136 #define KERN_TRY_AGAIN          9
 137 #define KERN_FAILURE_NOFAULT    10
 138
 139 #ifndef ASSEMBLER
 140 #ifdef _KERNEL
 141 extern  u_quad_t maxtsiz;
 142 extern  u_quad_t dfldsiz;
 143 extern  u_quad_t maxdsiz;
 144 extern  u_quad_t dflssiz;
 145 extern  u_quad_t maxssiz;
 146 extern  u_quad_t sgrowsiz;
 147 #endif                          /* _KERNEL */
 148 #endif                          /* ASSEMBLER */
 149 #endif                          /* _VM_VM_PARAM_H_ */