/*
 * Copyright (c) 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * The Mach Operating System project at Carnegie-Mellon University.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      from: @(#)vm_param.h    8.1 (Berkeley) 6/11/93
 *
 *
 * Copyright (c) 1987, 1990 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Authors: Avadis Tevanian, Jr., Michael Wayne Young
 *
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 *
 * $FreeBSD: src/sys/vm/vm_param.h,v 1.13.2.1 2001/11/03 01:41:10 ps Exp $
 * $DragonFly: src/sys/vm/vm_param.h,v 1.5 2006/09/12 18:41:32 dillon Exp $
 */

/*
 *      Machine independent virtual memory parameters.
 */

#ifndef _VM_VM_PARAM_H_
#define _VM_VM_PARAM_H_

#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
#ifndef _MACHINE_VMPARAM_H_
#include <machine/vmparam.h>
#endif

/*
 * CTL_VM identifiers
 */
#define VM_METER                1       /* struct vmmeter */
#define VM_LOADAVG              2       /* struct loadavg */
#define VM_V_FREE_MIN           3       /* cnt.v_free_min */
#define VM_V_FREE_TARGET        4       /* cnt.v_free_target */
#define VM_V_FREE_RESERVED      5       /* cnt.v_free_reserved */
#define VM_V_INACTIVE_TARGET    6       /* cnt.v_inactive_target */
#define VM_V_PAGEOUT_FREE_MIN   7       /* cnt.v_pageout_free_min */
#define VM_PAGEOUT_ALGORITHM    8       /* pageout algorithm */
#define VM_SWAPPING_ENABLED     9       /* swapping enabled */

#define VM_V_PAGING_WAIT        10
#define VM_V_PAGING_START       11
#define VM_V_PAGING_TARGET1     12
#define VM_V_PAGING_TARGET2     13

#define VM_MAXID                14      /* number of valid vm ids */

/*
 * Structure for swap device statistics
 */
#define XSWDEV_VERSION  1

struct xswdev {
        size_t  xsw_size;
        int     xsw_version;
        int     xsw_flags;
        dev_t   xsw_dev;
        size_t  xsw_blksize;
        size_t  xsw_nblks;
        size_t  xsw_used;
};

/*
 *      Return values from the VM routines.
 */
#define KERN_SUCCESS            0
#define KERN_INVALID_ADDRESS    1
#define KERN_PROTECTION_FAILURE 2
#define KERN_NO_SPACE           3
#define KERN_INVALID_ARGUMENT   4
#define KERN_FAILURE            5
#define KERN_RESOURCE_SHORTAGE  6
#define KERN_NOT_RECEIVER       7
#define KERN_NO_ACCESS          8
#define KERN_TRY_AGAIN          9
#define KERN_FAILURE_NOFAULT    10

#ifndef ASSEMBLER
#ifdef _KERNEL
extern  u_quad_t maxtsiz;
extern  u_quad_t dfldsiz;
extern  u_quad_t maxdsiz;
extern  u_quad_t dflssiz;
extern  u_quad_t maxssiz;
extern  u_quad_t sgrowsiz;
#endif                          /* _KERNEL */
#endif                          /* ASSEMBLER */
#endif                          /* _VM_VM_PARAM_H_ */