65 lines
2.8 KiB
C
65 lines
2.8 KiB
C
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/* $NetBSD: kdbreg.h,v 1.2 1999/07/12 13:43:24 ragge Exp $ */
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/*
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* Copyright (c) 1988 Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Chris Torek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)kdbreg.h 7.3 (Berkeley) 6/28/90
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*/
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/*
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* The KDB50 registers are embedded inside the bi interface
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* general-purpose registers.
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*/
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struct kdb_regs {
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struct biiregs kdb_bi;
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short kdb_xxx; /* first half of GPR 0 unused */
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short kdb_ip; /* initialisation and polling */
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short kdb_sa; /* status & address (r/o half) */
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short kdb_sw; /* status & address (w/o half) */
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};
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#define KDBSR_BITS \
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"\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO"
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/*
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* Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells
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* the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer
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* as an offset value. Hence we need no mappings; the KDB50 reads
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* the hardware page tables directly. (Without KDB_MAP, seq_bufer
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* represents the physical memory address instead, and seq_mapbase is
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* unused.)
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*/
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#define KDB_MAP 0x80000000
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#define KDB_PHYS 0 /* pseudo flag */
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