xnu-6153.121.1.tar.gz

[apple/xnu.git] / osfmk / mach / vm_sync.h

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/*
 * @OSF_COPYRIGHT@
 */
/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 *
 * 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
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 * any improvements or extensions that they make and grant Carnegie Mellon
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 */
/*
 *	File:	mach/vm_sync.h
 *
 *	Virtual memory synchronisation definitions.
 *
 */

#ifndef _MACH_VM_SYNC_H_
#define _MACH_VM_SYNC_H_

typedef unsigned                vm_sync_t;

/*
 *	Synchronization flags, defined as bits within the vm_sync_t type
 */

#define VM_SYNC_ASYNCHRONOUS    ((vm_sync_t) 0x01)
#define VM_SYNC_SYNCHRONOUS     ((vm_sync_t) 0x02)
#define VM_SYNC_INVALIDATE      ((vm_sync_t) 0x04)
#define VM_SYNC_KILLPAGES       ((vm_sync_t) 0x08)
#define VM_SYNC_DEACTIVATE      ((vm_sync_t) 0x10)
#define VM_SYNC_CONTIGUOUS      ((vm_sync_t) 0x20)
#define VM_SYNC_REUSABLEPAGES   ((vm_sync_t) 0x40)

#endif  /* _MACH_VM_SYNC_H_ */