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
 94struct 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))
138extern	unsigned long maxtsiz;
139extern	unsigned long dfldsiz;
140extern	unsigned long maxdsiz;
141extern	unsigned long dflssiz;
142extern	unsigned long maxssiz;
143extern	unsigned long sgrowsiz;
144#endif				/* _KERNEL */
145#endif				/* ASSEMBLER */
146#endif				/* _VM_PARAM_ */