sys/arch/mips/include/sb1regs.h

   1 /* $NetBSD$ */
   2
   3 /*
   4  * Copyright 2002 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Simon Burge for Wasabi Systems, Inc.
   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 for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #undef COP0_SYNC        /* XXX should be COP0_HAZARD or even COP0_HAZARD_MISC */
  39 #undef COP0_HAZARD_FPUENABLE
  40
  41 #ifdef SB1250_PASS1
  42 #define COP0_SYNC       \
  43         .set push; .set mips32; ssnop; ssnop; ssnop; ssnop; .set pop;
  44 #else
  45 #define COP0_SYNC       .set push; .set mips32; ssnop; ssnop; ssnop; .set pop;
  46 #endif
  47
  48 /*
  49  * XXX:
  50  *  This hazard is really:
  51  *
  52  *      .set push; .set mips32; ssnop; bnel $0, $0, .+4; ssnop; .set pop;
  53  *
  54  *  We use ".word 0x54000000" for "bnel $0, $0, .+4" here because
  55  *  this hazard is used within C code and we can't convert anything
  56  *  with a comma to a string using normal ANSI C preprocessor string
  57  *  operations.
  58  */
  59 #define COP0_HAZARD_FPUENABLE   \
  60         .set push; .set mips32; ssnop; .word 0x54000000; ssnop; .set pop;