1 /* $NetBSD: memc_3min.c,v 1.7 2000/07/09 09:14:29 nisimura Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah Hdr: trap.c 1.32 91/04/06 41 * 42 * @(#)trap.c 8.5 (Berkeley) 1/11/94 43 */ 44 45 46 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 47 48 __KERNEL_RCSID(0, "$NetBSD: memc_3min.c,v 1.7 2000/07/09 09:14:29 nisimura Exp $"); 49 50 /* 51 * Motherboard memory error contoller used in both 52 * 3min (kn02ba) and maxine (kn02ca). 53 */ 54 55 #include <sys/types.h> 56 #include <sys/systm.h> 57 58 #include <mips/cpuregs.h> 59 60 #include <pmax/pmax/kmin.h> 61 #include <pmax/pmax/memc.h> 62 63 /* 64 * Handle error 65 * All we can do with parity is panic. 66 * XXX check for clean user pages, replace frame, and reload ? 67 */ 68 void 69 kn02ba_errintr() 70 { 71 int mer, adr, siz, err; 72 static int errintr_cnt = 0; 73 74 siz = *(u_int32_t *)MIPS_PHYS_TO_KSEG1(KMIN_REG_MSR); 75 mer = *(u_int32_t *)MIPS_PHYS_TO_KSEG1(KMIN_REG_MER); 76 adr = *(u_int32_t *)MIPS_PHYS_TO_KSEG1(KMIN_REG_AER); 77 78 /* clear interrupt bit */ 79 *(u_int32_t *)MIPS_PHYS_TO_KSEG1(KMIN_REG_TIMEOUT) = 0; 80 81 switch (mer & KMIN_MER_LASTBYTE) { 82 case KMIN_LASTB31: 83 err = 3; break; 84 case KMIN_LASTB23: 85 err = 2; break; 86 case KMIN_LASTB15: 87 err = 1; break; 88 case KMIN_LASTB07: 89 err = 0; break; 90 } 91 err |= (adr & KMIN_AER_ADDR_MASK); 92 93 errintr_cnt++; 94 printf("(%d)Bad memory chip at phys %x [%x %x %x]\n", 95 errintr_cnt, err, mer, siz, adr); 96 } 97