1 /* $NetBSD: kdbreg.h,v 1.6 2021/07/24 21:31:36 andvar 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. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)kdbreg.h 7.3 (Berkeley) 6/28/90 34 */ 35 36 /* 37 * The KDB50 registers are embedded inside the bi interface 38 * general-purpose registers. 39 */ 40 #ifdef notdef 41 struct kdb_regs { 42 struct biiregs kdb_bi; 43 short kdb_xxx; /* first half of GPR 0 unused */ 44 short kdb_ip; /* initialisation and polling */ 45 short kdb_sa; /* status & address (r/o half) */ 46 short kdb_sw; /* status & address (w/o half) */ 47 }; 48 #endif 49 50 #define KDB_IP 0xf2 51 #define KDB_SA 0xf4 52 #define KDB_SW 0xf6 53 54 #define KDBSR_BITS \ 55 "\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO" 56 57 /* 58 * Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells 59 * the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer 60 * as an offset value. Hence we need no mappings; the KDB50 reads 61 * the hardware page tables directly. (Without KDB_MAP, seq_buffer 62 * represents the physical memory address instead, and seq_mapbase is 63 * unused.) 64 */ 65 #define KDB_MAP 0x80000000 66 #define KDB_PHYS 0 /* pseudo flag */ 67