1 /*- 2 * SPDX-License-Identifier: (BSD-3-Clause AND MIT-CMU) 3 * 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * The Mach Operating System project at Carnegie-Mellon University. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)vm_param.h 8.1 (Berkeley) 6/11/93 35 * 36 * 37 * Copyright (c) 1987, 1990 Carnegie-Mellon University. 38 * All rights reserved. 39 * 40 * Authors: Avadis Tevanian, Jr., Michael Wayne Young 41 * 42 * Permission to use, copy, modify and distribute this software and 43 * its documentation is hereby granted, provided that both the copyright 44 * notice and this permission notice appear in all copies of the 45 * software, derivative works or modified versions, and any portions 46 * thereof, and that both notices appear in supporting documentation. 47 * 48 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 49 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 50 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 51 * 52 * Carnegie Mellon requests users of this software to return to 53 * 54 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 55 * School of Computer Science 56 * Carnegie Mellon University 57 * Pittsburgh PA 15213-3890 58 * 59 * any improvements or extensions that they make and grant Carnegie the 60 * rights to redistribute these changes. 61 * 62 * $FreeBSD$ 63 */ 64 65 /* 66 * Machine independent virtual memory parameters. 67 */ 68 69#ifndef _VM_PARAM_ 70#define _VM_PARAM_ 71 72#include <machine/vmparam.h> 73 74 /* 75 * CTL_VM identifiers 76 */ 77#define VM_TOTAL 1 /* struct vmtotal */ 78#define VM_METER VM_TOTAL /* deprecated, use VM_TOTAL */ 79#define VM_LOADAVG 2 /* struct loadavg */ 80#define VM_V_FREE_MIN 3 /* vm_cnt.v_free_min */ 81#define VM_V_FREE_TARGET 4 /* vm_cnt.v_free_target */ 82#define VM_V_FREE_RESERVED 5 /* vm_cnt.v_free_reserved */ 83#define VM_V_INACTIVE_TARGET 6 /* vm_cnt.v_inactive_target */ 84#define VM_OBSOLETE_7 7 /* unused, formerly v_cache_min */ 85#define VM_OBSOLETE_8 8 /* unused, formerly v_cache_max */ 86#define VM_V_PAGEOUT_FREE_MIN 9 /* vm_cnt.v_pageout_free_min */ 87#define VM_OBSOLETE_10 10 /* pageout algorithm */ 88#define VM_SWAPPING_ENABLED 11 /* swapping enabled */ 89#define VM_OVERCOMMIT 12 /* vm.overcommit */ 90#define VM_MAXID 13 /* number of valid vm ids */ 91 92 /* 93 * Structure for swap device statistics 94 */ 95#define XSWDEV_VERSION 2 96 struct xswdev { 97 u_int xsw_version; 98 dev_t xsw_dev; 99 int xsw_flags; 100 int xsw_nblks; 101 int xsw_used; 102}; 103 104 /* 105 * Return values from the VM routines. 106 */ 107#define KERN_SUCCESS 0 108#define KERN_INVALID_ADDRESS 1 109#define KERN_PROTECTION_FAILURE 2 110#define KERN_NO_SPACE 3 111#define KERN_INVALID_ARGUMENT 4 112#define KERN_FAILURE 5 113#define KERN_RESOURCE_SHORTAGE 6 114#define KERN_NOT_RECEIVER 7 115#define KERN_NO_ACCESS 8 116#define KERN_OUT_OF_BOUNDS 9 117#define KERN_RESTART 10 118 119#ifndef PA_LOCK_COUNT 120#ifdef SMP 121#define PA_LOCK_COUNT 32 122#else 123#define PA_LOCK_COUNT 1 124#endif /* !SMP */ 125#endif /* !PA_LOCK_COUNT */ 126 127#ifndef KSTACK_MAX_PAGES 128#define KSTACK_MAX_PAGES 32 129#endif 130 131#ifndef PHYS_AVAIL_ENTRIES 132#define PHYS_AVAIL_ENTRIES (VM_PHYSSEG_MAX * 2) 133#endif 134#define PHYS_AVAIL_COUNT (PHYS_AVAIL_ENTRIES + 2) 135 136#ifndef ASSEMBLER 137#ifdef _KERNEL 138#define num_pages(x) \ 139 ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT)) 140 extern unsigned long maxtsiz; 141 extern unsigned long dfldsiz; 142 extern unsigned long maxdsiz; 143 extern unsigned long dflssiz; 144 extern unsigned long maxssiz; 145 extern unsigned long sgrowsiz; 146#endif /* _KERNEL */ 147#endif /* ASSEMBLER */ 148#endif /* _VM_PARAM_ */ 149