1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * Portions of this source code were derived from Berkeley 4.3 BSD 31 * under license from the Regents of the University of California. 32 */ 33 34 #ifndef _VM_SEG_ENUM_H 35 #define _VM_SEG_ENUM_H 36 37 #pragma ident "%Z%%M% %I% %E% SMI" 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* 44 * These enumerations are needed in both <vm/seg.h> and 45 * <sys/vnode.h> in order to declare function prototypes. 46 */ 47 48 /* 49 * Fault information passed to the seg fault handling routine. 50 * The F_SOFTLOCK and F_SOFTUNLOCK are used by software 51 * to lock and unlock pages for physical I/O. 52 */ 53 enum fault_type { 54 F_INVAL, /* invalid page */ 55 F_PROT, /* protection fault */ 56 F_SOFTLOCK, /* software requested locking */ 57 F_SOFTUNLOCK /* software requested unlocking */ 58 }; 59 60 /* 61 * Lock information passed to the seg pagelock handling routine. 62 */ 63 enum lock_type { 64 L_PAGELOCK, /* lock pages */ 65 L_PAGEUNLOCK, /* unlock pages */ 66 L_PAGERECLAIM /* reclaim pages */ 67 }; 68 69 /* 70 * seg_rw gives the access type for a fault operation 71 */ 72 enum seg_rw { 73 S_OTHER, /* unknown or not touched */ 74 S_READ, /* read access attempted */ 75 S_WRITE, /* write access attempted */ 76 S_EXEC, /* execution access attempted */ 77 S_CREATE, /* create if page doesn't exist */ 78 S_READ_NOCOW /* read access, don't do a copy on write */ 79 }; 80 81 /* 82 * Capabilities for capability segment op. 83 */ 84 typedef enum { 85 S_CAPABILITY_NOMINFLT /* supports non-faulting page renaming */ 86 } segcapability_t; 87 88 #ifdef __cplusplus 89 } 90 #endif 91 92 #endif /* _VM_SEG_ENUM_H */ 93