seg_enum.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#ifndef _VM_SEG_ENUM_H
#define _VM_SEG_ENUM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
*/
/*
* Fault information passed to the seg fault handling routine.
* The F_SOFTLOCK and F_SOFTUNLOCK are used by software
* to lock and unlock pages for physical I/O.
*/
enum fault_type {
F_INVAL, /* invalid page */
F_PROT, /* protection fault */
F_SOFTLOCK, /* software requested locking */
F_SOFTUNLOCK /* software requested unlocking */
};
/*
* Lock information passed to the seg pagelock handling routine.
*/
enum lock_type {
L_PAGELOCK, /* lock pages */
L_PAGEUNLOCK, /* unlock pages */
L_PAGERECLAIM /* reclaim pages */
};
/*
* seg_rw gives the access type for a fault operation
*/
enum seg_rw {
S_OTHER, /* unknown or not touched */
S_READ, /* read access attempted */
S_WRITE, /* write access attempted */
S_EXEC, /* execution access attempted */
S_CREATE, /* create if page doesn't exist */
S_READ_NOCOW /* read access, don't do a copy on write */
};
#ifdef __cplusplus
}
#endif
#endif /* _VM_SEG_ENUM_H */