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 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_FPRAS_H 28 #define _SYS_FPRAS_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * The following identify copy operations using the fpras mechanism. 38 * They are used in array indexing so keep them sequential. 39 */ 40 #define FPRAS_BCOPY 0 41 #define FPRAS_COPYIN 1 42 #define FPRAS_COPYOUT 2 43 #define FPRAS_PGCOPY 3 44 #define FPRAS_NCOPYOPS (FPRAS_PGCOPY + 1) 45 46 /* 47 * Identifying where fpras_failure was called from. 48 */ 49 #define FPRAS_FROMCHKFN 0 50 #define FPRAS_FROMTRAP 1 51 52 /* 53 * Return values from a check function. 54 */ 55 #define FPRAS_OK 0 56 #define FPRAS_BADCALC 1 57 #define FPRAS_BADTRAP 2 58 59 #if !defined(_ASM) 60 61 /* 62 * Set if an architecture/cpu combination implements fpRAS. 63 */ 64 extern int fpras_implemented; 65 66 /* 67 * Set in /etc/system to disable fpRAS mechanism at reboot. 68 * Changing this value on a live system may have no effect (eg, if an 69 * implementation checks only at startup). 70 */ 71 extern int fpras_disable; 72 73 /* 74 * Set in /etc/system to disable checking of particular copy operations. Set 75 * bit N to disable checking of the corresponding copy operation (eg, bit 2 76 * for copyout). Changing this value on a live system may have no effect. 77 */ 78 extern int fpras_disableids; 79 80 /* 81 * Function called from a check function to indicate an incorrect result 82 * was obtained and from trap handlers to determine if the trap was due to 83 * an fpRAS failure. Symbol only appears for architecture/cpu combinations 84 * that implement fpRAS. 85 */ 86 #pragma weak fpras_chktrap 87 struct regs; 88 extern int fpras_chktrap(struct regs *); 89 extern int fpras_failure(int, int); 90 91 #endif /* !_ASM */ 92 93 #ifdef __cplusplus 94 } 95 #endif 96 97 #endif /* _SYS_FPRAS_H */ 98