1 /* $NetBSD: kdbreg.h,v 1.3 1999/11/03 21:57:40 ragge Exp $ */ 2 /* 3 * Copyright (c) 1988 Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)kdbreg.h 7.3 (Berkeley) 6/28/90 38 */ 39 40 /* 41 * The KDB50 registers are embedded inside the bi interface 42 * general-purpose registers. 43 */ 44 #ifdef notdef 45 struct kdb_regs { 46 struct biiregs kdb_bi; 47 short kdb_xxx; /* first half of GPR 0 unused */ 48 short kdb_ip; /* initialisation and polling */ 49 short kdb_sa; /* status & address (r/o half) */ 50 short kdb_sw; /* status & address (w/o half) */ 51 }; 52 #endif 53 54 #define KDB_IP 0xf2 55 #define KDB_SA 0xf4 56 #define KDB_SW 0xf6 57 58 #define KDBSR_BITS \ 59 "\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO" 60 61 /* 62 * Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells 63 * the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer 64 * as an offset value. Hence we need no mappings; the KDB50 reads 65 * the hardware page tables directly. (Without KDB_MAP, seq_bufer 66 * represents the physical memory address instead, and seq_mapbase is 67 * unused.) 68 */ 69 #define KDB_MAP 0x80000000 70 #define KDB_PHYS 0 /* pseudo flag */ 71