xref: /freebsd/sys/vm/vm_param.h (revision c4aa0a2e380ad649b779e865f77d7e00103fef71)
1df8bae1dSRodney W. Grimes /*
2df8bae1dSRodney W. Grimes  * Copyright (c) 1991, 1993
3df8bae1dSRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
4df8bae1dSRodney W. Grimes  *
5df8bae1dSRodney W. Grimes  * This code is derived from software contributed to Berkeley by
6df8bae1dSRodney W. Grimes  * The Mach Operating System project at Carnegie-Mellon University.
7df8bae1dSRodney W. Grimes  *
8df8bae1dSRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
9df8bae1dSRodney W. Grimes  * modification, are permitted provided that the following conditions
10df8bae1dSRodney W. Grimes  * are met:
11df8bae1dSRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
12df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
13df8bae1dSRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
14df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
15df8bae1dSRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
16df8bae1dSRodney W. Grimes  * 3. All advertising materials mentioning features or use of this software
17df8bae1dSRodney W. Grimes  *    must display the following acknowledgement:
18df8bae1dSRodney W. Grimes  *	This product includes software developed by the University of
19df8bae1dSRodney W. Grimes  *	California, Berkeley and its contributors.
20df8bae1dSRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
21df8bae1dSRodney W. Grimes  *    may be used to endorse or promote products derived from this software
22df8bae1dSRodney W. Grimes  *    without specific prior written permission.
23df8bae1dSRodney W. Grimes  *
24df8bae1dSRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25df8bae1dSRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26df8bae1dSRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27df8bae1dSRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28df8bae1dSRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29df8bae1dSRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30df8bae1dSRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31df8bae1dSRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32df8bae1dSRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33df8bae1dSRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34df8bae1dSRodney W. Grimes  * SUCH DAMAGE.
35df8bae1dSRodney W. Grimes  *
363c4dd356SDavid Greenman  *	from: @(#)vm_param.h	8.1 (Berkeley) 6/11/93
37df8bae1dSRodney W. Grimes  *
38df8bae1dSRodney W. Grimes  *
39df8bae1dSRodney W. Grimes  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
40df8bae1dSRodney W. Grimes  * All rights reserved.
41df8bae1dSRodney W. Grimes  *
42df8bae1dSRodney W. Grimes  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
43df8bae1dSRodney W. Grimes  *
44df8bae1dSRodney W. Grimes  * Permission to use, copy, modify and distribute this software and
45df8bae1dSRodney W. Grimes  * its documentation is hereby granted, provided that both the copyright
46df8bae1dSRodney W. Grimes  * notice and this permission notice appear in all copies of the
47df8bae1dSRodney W. Grimes  * software, derivative works or modified versions, and any portions
48df8bae1dSRodney W. Grimes  * thereof, and that both notices appear in supporting documentation.
49df8bae1dSRodney W. Grimes  *
50df8bae1dSRodney W. Grimes  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
51df8bae1dSRodney W. Grimes  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
52df8bae1dSRodney W. Grimes  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
53df8bae1dSRodney W. Grimes  *
54df8bae1dSRodney W. Grimes  * Carnegie Mellon requests users of this software to return to
55df8bae1dSRodney W. Grimes  *
56df8bae1dSRodney W. Grimes  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
57df8bae1dSRodney W. Grimes  *  School of Computer Science
58df8bae1dSRodney W. Grimes  *  Carnegie Mellon University
59df8bae1dSRodney W. Grimes  *  Pittsburgh PA 15213-3890
60df8bae1dSRodney W. Grimes  *
61df8bae1dSRodney W. Grimes  * any improvements or extensions that they make and grant Carnegie the
62df8bae1dSRodney W. Grimes  * rights to redistribute these changes.
633c4dd356SDavid Greenman  *
64c3aac50fSPeter Wemm  * $FreeBSD$
65df8bae1dSRodney W. Grimes  */
66df8bae1dSRodney W. Grimes 
67df8bae1dSRodney W. Grimes /*
68df8bae1dSRodney W. Grimes  *	Machine independent virtual memory parameters.
69df8bae1dSRodney W. Grimes  */
70df8bae1dSRodney W. Grimes 
71df8bae1dSRodney W. Grimes #ifndef	_VM_PARAM_
72df8bae1dSRodney W. Grimes #define	_VM_PARAM_
73df8bae1dSRodney W. Grimes 
74df8bae1dSRodney W. Grimes #include <machine/vmparam.h>
75df8bae1dSRodney W. Grimes 
76df8bae1dSRodney W. Grimes /*
77df8bae1dSRodney W. Grimes  * CTL_VM identifiers
78df8bae1dSRodney W. Grimes  */
79f7550ecfSMatthew Dillon #define	VM_TOTAL		1	/* struct vmtotal */
80c4aa0a2eSDavid E. O'Brien #define	VM_METER                VM_TOTAL/* deprecated, use VM_TOTAL */
81df8bae1dSRodney W. Grimes #define	VM_LOADAVG	 	2	/* struct loadavg */
820d94caffSDavid Greenman #define VM_V_FREE_MIN		3	/* cnt.v_free_min */
830d94caffSDavid Greenman #define VM_V_FREE_TARGET	4	/* cnt.v_free_target */
840d94caffSDavid Greenman #define VM_V_FREE_RESERVED	5	/* cnt.v_free_reserved */
850d94caffSDavid Greenman #define VM_V_INACTIVE_TARGET	6	/* cnt.v_inactive_target */
860d94caffSDavid Greenman #define VM_V_CACHE_MIN		7	/* cnt.v_cache_max */
870d94caffSDavid Greenman #define VM_V_CACHE_MAX		8	/* cnt.v_cache_min */
880d94caffSDavid Greenman #define VM_V_PAGEOUT_FREE_MIN	9	/* cnt.v_pageout_free_min */
8938efa82bSJohn Dyson #define	VM_PAGEOUT_ALGORITHM	10	/* pageout algorithm */
9038efa82bSJohn Dyson #define VM_SWAPPING_ENABLED	11	/* swapping enabled */
9138efa82bSJohn Dyson #define	VM_MAXID		12	/* number of valid vm ids */
92df8bae1dSRodney W. Grimes 
93df8bae1dSRodney W. Grimes #define CTL_VM_NAMES { \
94df8bae1dSRodney W. Grimes 	{ 0, 0 }, \
95f7550ecfSMatthew Dillon 	{ "vmtotal", CTLTYPE_STRUCT }, \
96df8bae1dSRodney W. Grimes 	{ "loadavg", CTLTYPE_STRUCT }, \
970d94caffSDavid Greenman 	{ "v_free_min", CTLTYPE_INT }, \
980d94caffSDavid Greenman 	{ "v_free_target", CTLTYPE_INT }, \
990d94caffSDavid Greenman 	{ "v_free_reserved", CTLTYPE_INT }, \
1000d94caffSDavid Greenman 	{ "v_inactive_target", CTLTYPE_INT }, \
1010d94caffSDavid Greenman 	{ "v_cache_min", CTLTYPE_INT }, \
1020d94caffSDavid Greenman 	{ "v_cache_max", CTLTYPE_INT }, \
1030d94caffSDavid Greenman 	{ "v_pageout_free_min", CTLTYPE_INT}, \
10438efa82bSJohn Dyson 	{ "pageout_algorithm", CTLTYPE_INT}, \
10538efa82bSJohn Dyson 	{ "swapping_enabled", CTLTYPE_INT},\
106df8bae1dSRodney W. Grimes }
107df8bae1dSRodney W. Grimes 
108df8bae1dSRodney W. Grimes /*
1095c5c8fa8SThomas Moestl  * Structure for swap device statistics
1105c5c8fa8SThomas Moestl  */
1115c5c8fa8SThomas Moestl #define XSWDEV_VERSION	1
1125c5c8fa8SThomas Moestl struct xswdev {
1135c5c8fa8SThomas Moestl 	u_int	xsw_version;
1145c5c8fa8SThomas Moestl 	udev_t	xsw_dev;
1155c5c8fa8SThomas Moestl 	int	xsw_flags;
1165c5c8fa8SThomas Moestl 	int	xsw_nblks;
1175c5c8fa8SThomas Moestl 	int     xsw_used;
1185c5c8fa8SThomas Moestl };
1195c5c8fa8SThomas Moestl 
1205c5c8fa8SThomas Moestl /*
121df8bae1dSRodney W. Grimes  *	Return values from the VM routines.
122df8bae1dSRodney W. Grimes  */
123df8bae1dSRodney W. Grimes #define	KERN_SUCCESS		0
124df8bae1dSRodney W. Grimes #define	KERN_INVALID_ADDRESS	1
125df8bae1dSRodney W. Grimes #define	KERN_PROTECTION_FAILURE	2
126df8bae1dSRodney W. Grimes #define	KERN_NO_SPACE		3
127df8bae1dSRodney W. Grimes #define	KERN_INVALID_ARGUMENT	4
128df8bae1dSRodney W. Grimes #define	KERN_FAILURE		5
129df8bae1dSRodney W. Grimes #define	KERN_RESOURCE_SHORTAGE	6
130df8bae1dSRodney W. Grimes #define	KERN_NOT_RECEIVER	7
131df8bae1dSRodney W. Grimes #define	KERN_NO_ACCESS		8
132df8bae1dSRodney W. Grimes 
133df8bae1dSRodney W. Grimes #ifndef ASSEMBLER
134c4473420SPeter Wemm #ifdef _KERNEL
135df8bae1dSRodney W. Grimes #define num_pages(x) \
136df8bae1dSRodney W. Grimes 	((vm_offset_t)((((vm_offset_t)(x)) + PAGE_MASK) >> PAGE_SHIFT))
137cbc89bfbSPaul Saab extern	u_quad_t maxtsiz;
138cbc89bfbSPaul Saab extern	u_quad_t dfldsiz;
139cbc89bfbSPaul Saab extern	u_quad_t maxdsiz;
140cbc89bfbSPaul Saab extern	u_quad_t dflssiz;
141cbc89bfbSPaul Saab extern	u_quad_t maxssiz;
142cbc89bfbSPaul Saab extern	u_quad_t sgrowsiz;
143c4473420SPeter Wemm #endif				/* _KERNEL */
144df8bae1dSRodney W. Grimes #endif				/* ASSEMBLER */
145df8bae1dSRodney W. Grimes #endif				/* _VM_PARAM_ */
146