vm_param.h revision 109097
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: head/sys/vm/vm_param.h 109097 2003-01-11 07:29:47Z dillon $ 65 */ 66 67/* 68 * Machine independent virtual memory parameters. 69 */ 70 71#ifndef _VM_PARAM_ 72#define _VM_PARAM_ 73 74#include <machine/vmparam.h> 75 76/* 77 * CTL_VM identifiers 78 */ 79#define VM_TOTAL 1 /* struct vmtotal */ 80#define VM_LOADAVG 2 /* struct loadavg */ 81#define VM_V_FREE_MIN 3 /* cnt.v_free_min */ 82#define VM_V_FREE_TARGET 4 /* cnt.v_free_target */ 83#define VM_V_FREE_RESERVED 5 /* cnt.v_free_reserved */ 84#define VM_V_INACTIVE_TARGET 6 /* cnt.v_inactive_target */ 85#define VM_V_CACHE_MIN 7 /* cnt.v_cache_max */ 86#define VM_V_CACHE_MAX 8 /* cnt.v_cache_min */ 87#define VM_V_PAGEOUT_FREE_MIN 9 /* cnt.v_pageout_free_min */ 88#define VM_PAGEOUT_ALGORITHM 10 /* pageout algorithm */ 89#define VM_SWAPPING_ENABLED 11 /* swapping enabled */ 90#define VM_MAXID 12 /* number of valid vm ids */ 91 92#define CTL_VM_NAMES { \ 93 { 0, 0 }, \ 94 { "vmtotal", CTLTYPE_STRUCT }, \ 95 { "loadavg", CTLTYPE_STRUCT }, \ 96 { "v_free_min", CTLTYPE_INT }, \ 97 { "v_free_target", CTLTYPE_INT }, \ 98 { "v_free_reserved", CTLTYPE_INT }, \ 99 { "v_inactive_target", CTLTYPE_INT }, \ 100 { "v_cache_min", CTLTYPE_INT }, \ 101 { "v_cache_max", CTLTYPE_INT }, \ 102 { "v_pageout_free_min", CTLTYPE_INT}, \ 103 { "pageout_algorithm", CTLTYPE_INT}, \ 104 { "swapping_enabled", CTLTYPE_INT},\ 105} 106 107/* 108 * Structure for swap device statistics 109 */ 110#define XSWDEV_VERSION 1 111struct xswdev { 112 u_int xsw_version; 113 udev_t xsw_dev; 114 int xsw_flags; 115 int xsw_nblks; 116 int xsw_used; 117}; 118 119/* 120 * Return values from the VM routines. 121 */ 122#define KERN_SUCCESS 0 123#define KERN_INVALID_ADDRESS 1 124#define KERN_PROTECTION_FAILURE 2 125#define KERN_NO_SPACE 3 126#define KERN_INVALID_ARGUMENT 4 127#define KERN_FAILURE 5 128#define KERN_RESOURCE_SHORTAGE 6 129#define KERN_NOT_RECEIVER 7 130#define KERN_NO_ACCESS 8 131 132#ifndef ASSEMBLER 133#ifdef _KERNEL 134#define num_pages(x) \ 135 ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT)) 136extern u_quad_t maxtsiz; 137extern u_quad_t dfldsiz; 138extern u_quad_t maxdsiz; 139extern u_quad_t dflssiz; 140extern u_quad_t maxssiz; 141extern u_quad_t sgrowsiz; 142#endif /* _KERNEL */ 143#endif /* ASSEMBLER */ 144#endif /* _VM_PARAM_ */ 145