sys/arch/m68k/include/m68k.h

   1 /*      $NetBSD: m68k.h,v 1.15 2009/12/19 13:08:26 tsutsui Exp $        */
   2
   3 /*
   4  * Copyright (c) 1982, 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * the Systems Programming Group of the University of Utah Computer
   9  * Science Department.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      from: Utah $Hdr: cpu.h 1.16 91/03/25$
  36  *      from: @(#)cpu.h 8.4 (Berkeley) 1/5/94
  37  */
  38 /*
  39  * Copyright (c) 1988 University of Utah.
  40  *
  41  * This code is derived from software contributed to Berkeley by
  42  * the Systems Programming Group of the University of Utah Computer
  43  * Science Department.
  44  *
  45  * Redistribution and use in source and binary forms, with or without
  46  * modification, are permitted provided that the following conditions
  47  * are met:
  48  * 1. Redistributions of source code must retain the above copyright
  49  *    notice, this list of conditions and the following disclaimer.
  50  * 2. Redistributions in binary form must reproduce the above copyright
  51  *    notice, this list of conditions and the following disclaimer in the
  52  *    documentation and/or other materials provided with the distribution.
  53  * 3. All advertising materials mentioning features or use of this software
  54  *    must display the following acknowledgement:
  55  *      This product includes software developed by the University of
  56  *      California, Berkeley and its contributors.
  57  * 4. Neither the name of the University nor the names of its contributors
  58  *    may be used to endorse or promote products derived from this software
  59  *    without specific prior written permission.
  60  *
  61  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  64  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  71  * SUCH DAMAGE.
  72  *
  73  *      from: Utah $Hdr: cpu.h 1.16 91/03/25$
  74  *      from: @(#)cpu.h 8.4 (Berkeley) 1/5/94
  75  */
  76
  77 #ifndef _M68K_M68K_H_
  78 #define _M68K_M68K_H_
  79
  80 /*
  81  * Declarations for things exported by sources in this directory,
  82  * or required by sources in here and not declared elsewhere.
  83  *
  84  * These declarations generally do NOT belong in <machine/cpu.h>,
  85  * because that defines the interface between the common code and
  86  * the machine-dependent code, whereas this defines the interface
  87  * between the shared m68k code and the machine-dependent code.
  88  *
  89  * The MMU stuff is exported separately so it can be used just
  90  * where it is really needed.  Same for function codes, etc.
  91  */
  92
  93 #ifdef _KERNEL
  94 /*
  95  * All m68k ports must provide these globals.
  96  */
  97 extern  int cputype;            /* CPU on this host */
  98 extern  int ectype;             /* external cache on this host */
  99 extern  int fputype;            /* FPU on this host */
 100 extern  int mmutype;            /* MMU on this host */
 101 #endif  /* _KERNEL */
 102
 103 /* values for cputype */
 104 #define CPU_68010       -1      /* 68010 */
 105 #define CPU_68020       0       /* 68020 */
 106 #define CPU_68030       1       /* 68030 */
 107 #define CPU_68040       2       /* 68040 */
 108 #define CPU_68060       3       /* 68060 */
 109
 110 /* values for ectype */
 111 #define EC_PHYS         -1      /* external physical address cache */
 112 #define EC_NONE         0       /* no external cache */
 113 #define EC_VIRT         1       /* external virtual address cache */
 114
 115 /* values for fputype */
 116 #define FPU_NONE        0       /* no FPU */
 117 #define FPU_68881       1       /* 68881 FPU */
 118 #define FPU_68882       2       /* 68882 FPU */
 119 #define FPU_68040       3       /* 68040 on-chip FPU */
 120 #define FPU_68060       4       /* 68060 on-chip FPU */
 121 #define FPU_UNKNOWN     5       /* placeholder; unknown FPU */
 122
 123 /* values for mmutype (assigned for quick testing) */
 124 #define MMU_68060       -3      /* 68060 on-chip MMU */
 125 #define MMU_68040       -2      /* 68040 on-chip MMU */
 126 #define MMU_68030       -1      /* 68030 on-chip subset of 68851 */
 127 #define MMU_HP          0       /* HP proprietary */
 128 #define MMU_68851       1       /* Motorola 68851 */
 129 #define MMU_SUN         2       /* Sun MMU */
 130
 131
 132 #ifdef _KERNEL
 133
 134 struct pcb;
 135 struct trapframe;
 136
 137 /* copypage.s */
 138 void    copypage040(void *fromaddr, void *toaddr);
 139 void    copypage(void *fromaddr, void *toaddr);
 140 void    zeropage(void *addr);
 141
 142 /* locore.s (XXX: move to support.s?) */
 143 int     getdfc(void);
 144 int     getsfc(void);
 145
 146 /* switch_subr.s */
 147 void    lwp_trampoline(void);
 148 void    savectx(struct pcb *);
 149 void    setfunc_trampoline(void);
 150
 151 /* w16copy.s */
 152 void    w16zero(void *, u_int);
 153 void    w16copy(const void *, void *, u_int);
 154
 155 #ifdef MAPPEDCOPY
 156 /* mappedcopy.c */
 157 int     mappedcopyin(void *fromp, void *top, size_t count);
 158 int     mappedcopyout(void *fromp, void *top, size_t count);
 159 extern  u_int mappedcopysize;
 160 #endif /* MAPPEDCOPY */
 161
 162 /* regdump.c */
 163 void    regdump(struct trapframe *, int);
 164
 165 /* sys_machdep.c */
 166 int     cachectl1(u_long, vaddr_t, size_t, struct proc *);
 167 int     dma_cachectl(void *, int);
 168
 169 /* vm_machdep.c */
 170 int     kvtop(void *);
 171 void    physaccess(void *, void *, int, int);
 172 void    physunaccess(void *, int);
 173
 174 #endif /* _KERNEL */
 175 #endif /* _M68K_M68K_H_ */