/*
 * 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_kern.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_kern.h,v 1.22 2000/02/16 21:11:31 dillon Exp $
 * $DragonFly: src/sys/vm/vm_kern.h,v 1.12 2007/06/07 23:14:29 dillon Exp $
 */

#ifndef _VM_VM_KERN_H_
#define _VM_VM_KERN_H_

#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif
#ifndef _VM_VM_MAP_H_
#include <vm/vm_map.h>
#endif

struct vm_object;

/*
 * Anonymous swap-backed kernel memory descriptor
 */
struct kmem_anon_desc {
        struct vm_map   *map;
        vm_size_t       size;
        vm_offset_t     data;
        struct vm_object *object;
};

typedef struct kmem_anon_desc kmem_anon_desc_t;

/*
 * kmem_alloc3() flags
 */
#define KM_PAGEABLE     0x00000001
#define KM_KRESERVE     0x00000002
#define KM_STACK        0x00000004
#define KM_NOTLBSYNC    0x00000008
#define KM_CPU_SPEC     0x00000010

#define KM_CPU_SHIFT    16
#define KM_CPU(n)       (((n) << KM_CPU_SHIFT) | KM_CPU_SPEC)
#define KM_GETCPU(flags) ((flags) >> KM_CPU_SHIFT)

/* Kernel memory management definitions. */
extern struct vm_map *buffer_map;
extern struct vm_map *kernel_map;
extern struct vm_map *clean_map;
extern u_int vm_kmem_size;

extern vm_offset_t kernel_vm_end;
/* XXX - elsewhere? */
struct malloc_type;
extern void *contigmalloc_map(u_long, struct malloc_type *, int,
                vm_paddr_t, vm_paddr_t, u_long, u_long, struct vm_map *);

#endif                          /* _VM_VM_KERN_H_ */