/* $NetBSD: memerr.h,v 1.4 2018/02/08 09:05:18 dholland Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)memreg.h 8.1 (Berkeley) 6/11/93 */ /* * Sun3 memory error register. * * All Sun3 memory systems use either parity checking or * Error Correction Coding (ECC). A memory error causes * the Memory Error Register (MER) to latch information * about the location and type of error, and if the MER * interrupt is enabled, generateds a level 7 interrupt. * The latched information persists (even if more errors * occur) until the MER is cleared by a write (at mer_er). */ struct memerr { volatile u_char me_csr; /* MER control/status reg. */ volatile u_char me__pad[3]; volatile u_int me_vaddr; }; /* * Bits in me_csr common between ECC/parity memory systems: */ #define ME_CSR_IPEND 0x80 /* (ro) error interrupt pending */ #define ME_CSR_IENA 0x40 /* (rw) error interrupt enable */ /* * Bits in me_csr on parity-checked memory system: */ #define ME_PAR_TEST 0x20 /* (rw) write inverse parity */ #define ME_PAR_CHECK 0x10 /* (rw) enable parity checking */ #define ME_PAR_ERR3 0x08 /* (ro) parity error in <24..31> */ #define ME_PAR_ERR2 0x04 /* (ro) parity error in <16..23> */ #define ME_PAR_ERR1 0x02 /* (ro) parity error in <8..15> */ #define ME_PAR_ERR0 0x01 /* (ro) parity error in <0..7> */ #define ME_PAR_EMASK 0x0F /* (ro) mask of above four */ #define ME_PAR_STR "\20\10IPEND\7IENA\6TEST\5CHK\4ERR3\3ERR2\2ERR1\1ERR0" /* * Bits in me_csr on an ECC memory system: */ #define ME_ECC_BUSLK 0x20 /* (rw) hold memory bus mastership */ #define ME_ECC_CE_ENA 0x10 /* (rw) enable CE recording */ #define ME_ECC_WBTMO 0x08 /* (ro) write-back timeout */ #define ME_ECC_WBERR 0x04 /* (ro) write-back error */ #define ME_ECC_UE 0x02 /* (ro) UE, uncorrectable error */ #define ME_ECC_CE 0x01 /* (ro) CE, correctable (single bit) error */ #define ME_ECC_EMASK 0x0F /* (ro) mask for some ECC error occurring */ #define ME_ECC_STR "\20\10IPEND\7IENA\6BUSLK\5CE_ENA\4TMOUT\3WBERR\2UE\1CE" |