1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_FPRAS_H 28*0Sstevel@tonic-gate #define _SYS_FPRAS_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * The following identify copy operations using the fpras mechanism. 38*0Sstevel@tonic-gate * They are used in array indexing so keep them sequential. 39*0Sstevel@tonic-gate */ 40*0Sstevel@tonic-gate #define FPRAS_BCOPY 0 41*0Sstevel@tonic-gate #define FPRAS_COPYIN 1 42*0Sstevel@tonic-gate #define FPRAS_COPYOUT 2 43*0Sstevel@tonic-gate #define FPRAS_PGCOPY 3 44*0Sstevel@tonic-gate #define FPRAS_NCOPYOPS (FPRAS_PGCOPY + 1) 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * Identifying where fpras_failure was called from. 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate #define FPRAS_FROMCHKFN 0 50*0Sstevel@tonic-gate #define FPRAS_FROMTRAP 1 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate /* 53*0Sstevel@tonic-gate * Return values from a check function. 54*0Sstevel@tonic-gate */ 55*0Sstevel@tonic-gate #define FPRAS_OK 0 56*0Sstevel@tonic-gate #define FPRAS_BADCALC 1 57*0Sstevel@tonic-gate #define FPRAS_BADTRAP 2 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #if !defined(_ASM) 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate /* 62*0Sstevel@tonic-gate * Set if an architecture/cpu combination implements fpRAS. 63*0Sstevel@tonic-gate */ 64*0Sstevel@tonic-gate extern int fpras_implemented; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * Set in /etc/system to disable fpRAS mechanism at reboot. 68*0Sstevel@tonic-gate * Changing this value on a live system may have no effect (eg, if an 69*0Sstevel@tonic-gate * implementation checks only at startup). 70*0Sstevel@tonic-gate */ 71*0Sstevel@tonic-gate extern int fpras_disable; 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* 74*0Sstevel@tonic-gate * Set in /etc/system to disable checking of particular copy operations. Set 75*0Sstevel@tonic-gate * bit N to disable checking of the corresponding copy operation (eg, bit 2 76*0Sstevel@tonic-gate * for copyout). Changing this value on a live system may have no effect. 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate extern int fpras_disableids; 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate /* 81*0Sstevel@tonic-gate * Function called from a check function to indicate an incorrect result 82*0Sstevel@tonic-gate * was obtained and from trap handlers to determine if the trap was due to 83*0Sstevel@tonic-gate * an fpRAS failure. Symbol only appears for architecture/cpu combinations 84*0Sstevel@tonic-gate * that implement fpRAS. 85*0Sstevel@tonic-gate */ 86*0Sstevel@tonic-gate #pragma weak fpras_chktrap 87*0Sstevel@tonic-gate struct regs; 88*0Sstevel@tonic-gate extern int fpras_chktrap(struct regs *); 89*0Sstevel@tonic-gate extern int fpras_failure(int, int); 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate #endif /* !_ASM */ 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate #ifdef __cplusplus 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate #endif 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate #endif /* _SYS_FPRAS_H */ 98