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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27 /* All Rights Reserved */ 28 29 /* 30 * University Copyright- Copyright (c) 1982, 1986, 1988 31 * The Regents of the University of California 32 * All Rights Reserved 33 * 34 * University Acknowledgment- Portions of this document are derived from 35 * software developed by the University of California, Berkeley, and its 36 * contributors. 37 */ 38 39 #ifndef _VM_FAULTCODE_H 40 #define _VM_FAULTCODE_H 41 42 #pragma ident "%Z%%M% %I% %E% SMI" 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 /* 49 * This file describes the data type returned by vm routines 50 * which handle faults. 51 * 52 * If FC_CODE(fc) == FC_OBJERR, then FC_ERRNO(fc) contains the errno value 53 * returned by the underlying object mapped at the fault address. 54 */ 55 #define FC_HWERR 0x1 /* misc hardware error (e.g. bus timeout) */ 56 #define FC_ALIGN 0x2 /* hardware alignment error */ 57 #define FC_OBJERR 0x3 /* underlying object returned errno value */ 58 #define FC_PROT 0x4 /* access exceeded current protections */ 59 #define FC_NOMAP 0x5 /* no mapping at the fault address */ 60 #define FC_NOSUPPORT 0x6 /* operation not supported by driver */ 61 62 #define FC_MAKE_ERR(e) (((e) << 8) | FC_OBJERR) 63 64 #define FC_CODE(fc) ((fc) & 0xff) 65 #define FC_ERRNO(fc) ((unsigned)(fc) >> 8) 66 67 #ifndef _ASM 68 typedef int faultcode_t; /* type returned by vm fault routines */ 69 70 extern int fc_decode(faultcode_t); 71 72 #endif /* _ASM */ 73 74 #ifdef __cplusplus 75 } 76 #endif 77 78 #endif /* _VM_FAULTCODE_H */ 79