sys/dev/bi/kdbreg.h

   1 /*      $NetBSD: kdbreg.h,v 1.3.28.3 2004/09/21 13:27:24 skrll 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_bufer
  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 */