sys/arch/mvme68k/include/cpu.h

   1 /*      $NetBSD: cpu.h,v 1.42 2008/02/27 18:26:16 xtraeme 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  *
  37  *      @(#)cpu.h       8.4 (Berkeley) 1/5/94
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
  75  *
  76  *      @(#)cpu.h       8.4 (Berkeley) 1/5/94
  77  */
  78
  79 #ifndef _MACHINE_CPU_H_
  80 #define _MACHINE_CPU_H_
  81
  82 #if defined(_KERNEL)
  83
  84 /*
  85  * Exported definitions unique to mvme68k/68k cpu support.
  86  */
  87
  88 #if defined(_KERNEL_OPT)
  89 #include "opt_lockdebug.h"
  90 #endif
  91
  92 /*
  93  * Get common m68k CPU definitions.
  94  */
  95 #include <m68k/cpu.h>
  96 #define M68K_MMU_MOTOROLA
  97
  98 #include <sys/cpu_data.h>
  99 struct cpu_info {
 100         struct cpu_data ci_data;        /* MI per-cpu data */
 101         cpuid_t ci_cpuid;
 102         int     ci_mtx_count;
 103         int     ci_mtx_oldspl;
 104         int     ci_want_resched;
 105 };
 106
 107 extern struct cpu_info cpu_info_store;
 108
 109 #define curcpu()                        (&cpu_info_store)
 110
 111 /*
 112  * definitions of cpu-dependent requirements
 113  * referenced in generic code
 114  */
 115 #define cpu_number()                    0
 116
 117 void    cpu_proc_fork(struct proc *, struct proc *);
 118
 119 /*
 120  * Arguments to hardclock and gatherstats encapsulate the previous
 121  * machine state in an opaque clockframe.  One the mvme68k, we use
 122  * what the hardware pushes on an interrupt (frame format 0).
 123  */
 124 struct clockframe {
 125         u_short sr;             /* sr at time of interrupt */
 126         u_long  pc;             /* pc at time of interrupt */
 127         u_short fmt:4,
 128                 vec:12;         /* vector offset (4-word frame) */
 129 } __attribute__((packed));
 130
 131 #define CLKF_USERMODE(framep)   (((framep)->sr & PSL_S) == 0)
 132 #define CLKF_PC(framep)         ((framep)->pc)
 133
 134 /*
 135  * The clock interrupt handler can determine if it's a nested
 136  * interrupt by checking for interrupt_depth > 1.
 137  * (Remember, the clock interrupt handler itself will cause the
 138  * depth counter to be incremented).
 139  */
 140 extern volatile unsigned int interrupt_depth;
 141 #define CLKF_INTR(framep)       (interrupt_depth > 1)
 142
 143
 144 /*
 145  * Preempt the current process if in interrupt from user mode,
 146  * or after the current trap/syscall if in system mode.
 147  */
 148 #define cpu_need_resched(ci, flags)     \
 149         do { ci->ci_want_resched++; aston(); } while (/* CONSTCOND */0)
 150
 151 /*
 152  * Give a profiling tick to the current process when the user profiling
 153  * buffer pages are invalid.  On the hp300, request an ast to send us
 154  * through trap, marking the proc as needing a profiling tick.
 155  */
 156 #define cpu_need_proftick(l)    \
 157         do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0)
 158
 159 /*
 160  * Notify the current process (p) that it has a signal pending,
 161  * process as soon as possible.
 162  */
 163 #define cpu_signotify(l)        aston()
 164
 165 extern int astpending;          /* need to trap before returning to user mode */
 166 #define aston() (astpending++)
 167
 168 #endif /* _KERNEL */
 169
 170 /*
 171  * CTL_MACHDEP definitions.
 172  */
 173 #define CPU_CONSDEV             1       /* dev_t: console terminal device */
 174 #define CPU_MAXID               2       /* number of valid machdep ids */
 175
 176 #ifdef _KERNEL
 177 /*
 178  * Associate MVME models with CPU types.
 179  */
 180 #define MVME68K         1
 181
 182 /*
 183  * MVME-147; 68030 CPU
 184  */
 185 #if defined(MVME147) && !defined(M68030)
 186 #define M68030
 187 #endif
 188
 189 /*
 190  * MVME-162/166/167; 68040 CPU
 191  */
 192 #if (defined(MVME162) || defined(MVME167)) && !defined(M68040)
 193 #define M68040
 194 #endif
 195
 196 /*
 197  * MVME-172/177; 68060 CPU
 198  */
 199 #if (defined(MVME172) || defined(MVME177)) && !defined(M68060)
 200 #define M68060
 201 #endif
 202 #endif /* _KERNEL */
 203
 204 /*
 205  * Values for machineid; these match the Bug's values.
 206  */
 207 #define MVME_147        0x147
 208 #define MVME_162        0x162
 209 #define MVME_166        0x166
 210 #define MVME_167        0x167
 211 #define MVME_172        0x172
 212 #define MVME_177        0x177
 213
 214 #ifdef _KERNEL
 215 extern  int machineid;
 216 extern  int cpuspeed;
 217 extern  char *intiobase, *intiolimit;
 218 extern  u_int intiobase_phys, intiotop_phys;
 219 extern  u_long ether_data_buff_size;
 220 extern  u_char mvme_ea[6];
 221
 222 void    doboot(int)
 223         __attribute__((__noreturn__));
 224 int     nmihand(void *);
 225 void    mvme68k_abort(const char *);
 226 void    *iomap(u_long, size_t);
 227 void    iounmap(void *, size_t);
 228 void    loadustp(paddr_t);
 229
 230 /* physical memory addresses where mvme147's onboard devices live */
 231 #define INTIOBASE147    (0xfffe0000u)
 232 #define INTIOTOP147     (0xfffe5000u)
 233
 234 /* ditto for mvme1[67][27] */
 235 #define INTIOBASE1xx    (0xfff40000u)
 236 #define INTIOTOP1xx     (0xfffd0000u)
 237
 238 #endif /* _KERNEL */
 239
 240 #endif /* _MACHINE_CPU_H_ */