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Annotation of sys/arch/vax/bi/kdbreg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: kdbreg.h,v 1.5 2003/06/02 23:27:57 millert Exp $ */
                      2: /*     $NetBSD: kdbreg.h,v 1.3 1999/11/03 21:57:40 ragge Exp $ */
                      3: /*
                      4:  * Copyright (c) 1988 Regents of the University of California.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Chris Torek.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. Neither the name of the University nor the names of its contributors
                     19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
                     34:  *     @(#)kdbreg.h    7.3 (Berkeley) 6/28/90
                     35:  */
                     36:
                     37: /*
                     38:  * The KDB50 registers are embedded inside the bi interface
                     39:  * general-purpose registers.
                     40:  */
                     41: #ifdef notdef
                     42: struct kdb_regs {
                     43:        struct  biiregs kdb_bi;
                     44:        short   kdb_xxx;        /* first half of GPR 0 unused */
                     45:        short   kdb_ip;         /* initialisation and polling */
                     46:        short   kdb_sa;         /* status & address (r/o half) */
                     47:        short   kdb_sw;         /* status & address (w/o half) */
                     48: };
                     49: #endif
                     50:
                     51: #define        KDB_IP  0xf2
                     52: #define        KDB_SA  0xf4
                     53: #define        KDB_SW  0xf6
                     54:
                     55: #define KDBSR_BITS \
                     56: "\20\20ERR\17STEP4\16STEP3\15STEP2\14STEP1\13oldNV\12oldQB\11DI\10IE\1GO"
                     57:
                     58: /*
                     59:  * Asserting KDB_MAP in values placed in mscp_seq.seq_buffer tells
                     60:  * the KDB to use mscp_seq.seq_mapbase as a set of PTEs and seq_buffer
                     61:  * as an offset value.  Hence we need no mappings; the KDB50 reads
                     62:  * the hardware page tables directly.  (Without KDB_MAP, seq_bufer
                     63:  * represents the physical memory address instead, and seq_mapbase is
                     64:  * unused.)
                     65:  */
                     66: #define        KDB_MAP         0x80000000
                     67: #define        KDB_PHYS        0               /* pseudo flag */