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 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 /* vm_cnt.v_free_min */ 79 #define VM_V_FREE_TARGET 4 /* vm_cnt.v_free_target */ 80 #define VM_V_FREE_RESERVED 5 /* vm_cnt.v_free_reserved */ 81 #define VM_V_INACTIVE_TARGET 6 /* vm_cnt.v_inactive_target */ 82 #define VM_OBSOLETE_7 7 /* unused, formerly v_cache_min */ 83 #define VM_OBSOLETE_8 8 /* unused, formerly v_cache_max */ 84 #define VM_V_PAGEOUT_FREE_MIN 9 /* vm_cnt.v_pageout_free_min */ 85 #define VM_OBSOLETE_10 10 /* pageout algorithm */ 86 #define VM_SWAPPING_ENABLED 11 /* swapping enabled */ 87 #define VM_OVERCOMMIT 12 /* vm.overcommit */ 88 #define VM_MAXID 13 /* number of valid vm ids */ 89 90 /* 91 * Structure for swap device statistics 92 */ 93 #define XSWDEV_VERSION 2 94 struct xswdev { 95 u_int xsw_version; 96 dev_t xsw_dev; 97 int xsw_flags; 98 int xsw_nblks; 99 int xsw_used; 100 }; 101 102 /* 103 * Return values from the VM routines. 104 */ 105 #define KERN_SUCCESS 0 106 #define KERN_INVALID_ADDRESS 1 107 #define KERN_PROTECTION_FAILURE 2 108 #define KERN_NO_SPACE 3 109 #define KERN_INVALID_ARGUMENT 4 110 #define KERN_FAILURE 5 111 #define KERN_RESOURCE_SHORTAGE 6 112 #define KERN_NOT_RECEIVER 7 113 #define KERN_NO_ACCESS 8 114 #define KERN_OUT_OF_BOUNDS 9 115 #define KERN_RESTART 10 116 117 #ifndef PA_LOCK_COUNT 118 #ifdef SMP 119 #define PA_LOCK_COUNT 32 120 #else 121 #define PA_LOCK_COUNT 1 122 #endif /* !SMP */ 123 #endif /* !PA_LOCK_COUNT */ 124 125 #ifndef KSTACK_MAX_PAGES 126 #define KSTACK_MAX_PAGES 32 127 #endif 128 129 #ifndef PHYS_AVAIL_ENTRIES 130 #define PHYS_AVAIL_ENTRIES (VM_PHYSSEG_MAX * 2) 131 #endif 132 #define PHYS_AVAIL_COUNT (PHYS_AVAIL_ENTRIES + 2) 133 134 #ifndef ASSEMBLER 135 #ifdef _KERNEL 136 #define num_pages(x) \ 137 ((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT)) 138 extern unsigned long maxtsiz; 139 extern unsigned long dfldsiz; 140 extern unsigned long maxdsiz; 141 extern unsigned long dflssiz; 142 extern unsigned long maxssiz; 143 extern unsigned long sgrowsiz; 144 #endif /* _KERNEL */ 145 #endif /* ASSEMBLER */ 146 #endif /* _VM_PARAM_ */ 147