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_min */
83#define	VM_V_CACHE_MAX		8	/* cnt.v_cache_max */
84#define VM_V_PAGEOUT_FREE_MIN	9	/* cnt.v_pageout_free_min */
85#define	VM_OBSOLETE_10		10	/* pageout algorithm */
86#define VM_SWAPPING_ENABLED	11	/* swapping enabled */
87#define	VM_MAXID		12	/* number of valid vm ids */
88
89/*
90 * Structure for swap device statistics
91 */
92#define XSWDEV_VERSION	1
93struct xswdev {
94	u_int	xsw_version;
95	dev_t	xsw_dev;
96	int	xsw_flags;
97	int	xsw_nblks;
98	int     xsw_used;
99};
100
101/*
102 *	Return values from the VM routines.
103 */
104#define	KERN_SUCCESS		0
105#define	KERN_INVALID_ADDRESS	1
106#define	KERN_PROTECTION_FAILURE	2
107#define	KERN_NO_SPACE		3
108#define	KERN_INVALID_ARGUMENT	4
109#define	KERN_FAILURE		5
110#define	KERN_RESOURCE_SHORTAGE	6
111#define	KERN_NOT_RECEIVER	7
112#define	KERN_NO_ACCESS		8
113
114#ifndef PA_LOCK_COUNT
115#ifdef SMP
116#define	PA_LOCK_COUNT	32
117#else
118#define PA_LOCK_COUNT	1
119#endif	/* !SMP */
120#endif	/* !PA_LOCK_COUNT */
121
122#ifndef ASSEMBLER
123#ifdef _KERNEL
124#define num_pages(x) \
125	((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
126extern	unsigned long maxtsiz;
127extern	unsigned long dfldsiz;
128extern	unsigned long maxdsiz;
129extern	unsigned long dflssiz;
130extern	unsigned long maxssiz;
131extern	unsigned long sgrowsiz;
132#endif				/* _KERNEL */
133#endif				/* ASSEMBLER */
134#endif				/* _VM_PARAM_ */
135