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 * 4. 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 * $FreeBSD$ 61 */ 62 63 /* 64 * Machine independent virtual memory parameters. 65 */ 66 67 #ifndef _VM_PARAM_ 68 #define _VM_PARAM_ 69 70 #include <machine/vmparam.h> 71 72 /* 73 * CTL_VM identifiers 74 */ 75 #define VM_TOTAL 1 /* struct vmtotal */ 76 #define VM_METER VM_TOTAL/* deprecated, use VM_TOTAL */ 77 #define VM_LOADAVG 2 /* struct loadavg */ 78 #define VM_V_FREE_MIN 3 /* cnt.v_free_min */ 79 #define VM_V_FREE_TARGET 4 /* cnt.v_free_target */ 80 #define VM_V_FREE_RESERVED 5 /* cnt.v_free_reserved */ 81 #define VM_V_INACTIVE_TARGET 6 /* cnt.v_inactive_target */ 82 #define VM_V_CACHE_MIN 7 /* cnt.v_cache_max */ 83 #define VM_V_CACHE_MAX 8 /* cnt.v_cache_min */ 84 #define VM_V_PAGEOUT_FREE_MIN 9 /* cnt.v_pageout_free_min */ 85 #define VM_PAGEOUT_ALGORITHM 10 /* pageout algorithm */ 86 #define VM_SWAPPING_ENABLED 11 /* swapping enabled */ 87 #define VM_MAXID 12 /* number of valid vm ids */ 88 89 #define CTL_VM_NAMES { \ 90 { 0, 0 }, \ 91 { "vmtotal", CTLTYPE_STRUCT }, \ 92 { "loadavg", CTLTYPE_STRUCT }, \ 93 { "v_free_min", CTLTYPE_INT }, \ 94 { "v_free_target", CTLTYPE_INT }, \ 95 { "v_free_reserved", CTLTYPE_INT }, \ 96 { "v_inactive_target", CTLTYPE_INT }, \ 97 { "v_cache_min", CTLTYPE_INT }, \ 98 { "v_cache_max", CTLTYPE_INT }, \ 99 { "v_pageout_free_min", CTLTYPE_INT}, \ 100 { "pageout_algorithm", CTLTYPE_INT}, \ 101 { "swapping_enabled", CTLTYPE_INT},\ 102 } 103 104 /* 105 * Structure for swap device statistics 106 */ 107 #define XSWDEV_VERSION 1 108 struct xswdev { 109 u_int xsw_version; 110 dev_t xsw_dev; 111 int xsw_flags; 112 int xsw_nblks; 113 int xsw_used; 114 }; 115 116 /* 117 * Return values from the VM routines. 118 */ 119 #define KERN_SUCCESS 0 120 #define KERN_INVALID_ADDRESS 1 121 #define KERN_PROTECTION_FAILURE 2 122 #define KERN_NO_SPACE 3 123 #define KERN_INVALID_ARGUMENT 4 124 #define KERN_FAILURE 5 125 #define KERN_RESOURCE_SHORTAGE 6 126 #define KERN_NOT_RECEIVER 7 127 #define KERN_NO_ACCESS 8 128 129 #ifndef ASSEMBLER 130 #ifdef _KERNEL 131 #define num_pages(x) \ 132 ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT)) 133 extern unsigned long maxtsiz; 134 extern unsigned long dfldsiz; 135 extern unsigned long maxdsiz; 136 extern unsigned long dflssiz; 137 extern unsigned long maxssiz; 138 extern unsigned long sgrowsiz; 139 #endif /* _KERNEL */ 140 #endif /* ASSEMBLER */ 141 #endif /* _VM_PARAM_ */ 142