sys/arch/arm/include/undefined.h

   1 /*      $NetBSD: undefined.h,v 1.11 2008/03/15 10:16:43 rearnsha Exp $  */
   2
   3 /*
   4  * Copyright (c) 1995-1996 Mark Brinicombe.
   5  * Copyright (c) 1995 Brini.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software written for Brini by Mark Brinicombe
   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. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by Brini.
  21  * 4. The name of the company nor the name of the author may be used to
  22  *    endorse or promote products derived from this software without specific
  23  *    prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
  26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  28  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  29  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  * RiscBSD kernel project
  38  *
  39  * undefined.h
  40  *
  41  * Undefined instruction types, symbols and prototypes
  42  *
  43  * Created      : 08/02/95
  44  */
  45
  46
  47 #ifndef _ARM_UNDEFINED_H_
  48 #define _ARM_UNDEFINED_H_
  49 #ifdef _KERNEL
  50
  51 #include <sys/queue.h>
  52
  53 typedef int (*undef_handler_t)(unsigned int, unsigned int, trapframe_t *, int);
  54
  55 /*
  56  * Enumeration of coprocessor numbers.  Values may be duplicated
  57  * (the iWMMX coprocessor clashes with the FPA, for example), but
  58  * keep this table in numeric order.
  59  */
  60 enum arm_coprocs {
  61         FPA_COPROC = 1,
  62         FPA_COPROC2 = 2,
  63         VFP_COPROC = 10,
  64         VFP_COPROC2 = 11,
  65         DEBUG_COPROC = 14,
  66         SYSTEM_COPROC = 15,
  67         /*
  68          *The following are not really co-processors, but are on the end
  69          * of the unknown instruction table for each coproc.
  70          */
  71         CORE_UNKNOWN_HANDLER = 16,
  72 #ifdef THUMB_CODE
  73         THUMB_UNKNOWN_HANDLER = 17,
  74 #endif
  75         NUM_UNKNOWN_HANDLERS    /* Last entry */
  76 };
  77
  78 /* Prototypes for undefined.c */
  79
  80 void *install_coproc_handler(int, undef_handler_t);
  81 void remove_coproc_handler(void *);
  82 void undefined_init(void);
  83
  84 /*
  85  * XXX Stuff below here is for use before malloc() is available.  Most code
  86  * shouldn't use it.
  87  */
  88
  89 struct undefined_handler {
  90         LIST_ENTRY(undefined_handler) uh_link;
  91         undef_handler_t uh_handler;
  92 };
  93
  94 /*
  95  * Handlers installed using install_coproc_handler_static shouldn't be
  96  * removed.
  97  */
  98 void install_coproc_handler_static(int, struct undefined_handler *);
  99
 100 /* Calls up to undefined.c from trap handlers */
 101 void undefinedinstruction(struct trapframe *);
 102
 103 #endif
 104
 105 /* End of undefined.h */
 106
 107 #endif /* _ARM_UNDEFINED_H_ */