sys/arch/atari/include/cpu.h

   1 /*      $NetBSD: cpu.h,v 1.63 2009/10/21 21:11:59 rmind Exp $   */
   2
   3 /*
   4  * Copyright (c) 1982, 1990 The Regents of the University of California.
   5  * 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       7.7 (Berkeley) 6/27/91
  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       7.7 (Berkeley) 6/27/91
  77  */
  78
  79 #ifndef _MACHINE_CPU_H_
  80 #define _MACHINE_CPU_H_
  81
  82 #if defined(_KERNEL)
  83
  84 /*
  85  * Exported definitions unique to atari/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_want_resched;
 103         int     ci_mtx_count;
 104         int     ci_mtx_oldspl;
 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.  On the hp300, we use
 122  * what the hardware pushes on an interrupt (frame format 0).
 123  */
 124 struct clockframe {
 125         u_int   cf_regs[4];     /* d0,d1,a0,a1 (see locore.s)   */
 126         u_short cf_sr;          /* sr at time of interrupt      */
 127         u_long  cf_pc;          /* pc at time of interrupt      */
 128         u_short cf_vo;          /* vector offset (4-word frame) */
 129 } __attribute__((packed));
 130
 131 #define CLKF_USERMODE(framep)   (((framep)->cf_sr & PSL_S) == 0)
 132 #define CLKF_PC(framep)         ((framep)->cf_pc)
 133 #if 0
 134 /* We would like to do it this way... */
 135 #define CLKF_INTR(framep)       (((framep)->cf_sr & PSL_M) == 0)
 136 #else
 137 /* but until we start using PSL_M, we have to do this instead */
 138 #define CLKF_INTR(framep)       (0)     /* XXX */
 139 #endif
 140
 141
 142 /*
 143  * Preempt the current process if in interrupt from user mode,
 144  * or after the current trap/syscall if in system mode.
 145  */
 146 #define cpu_need_resched(ci,flags)      {ci->ci_want_resched = 1; setsoftast();}
 147
 148 /*
 149  * Give a profiling tick to the current process from the softclock
 150  * interrupt.  On hp300, request an ast to send us through trap(),
 151  * marking the proc as needing a profiling tick.
 152  */
 153 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
 154 #define cpu_need_proftick(l)    ((l)->l_pflag |= LP_OWEUPC, setsoftast())
 155
 156 /*
 157  * Notify the current process (p) that it has a signal pending,
 158  * process as soon as possible.
 159  */
 160 #define cpu_signotify(l)        setsoftast()
 161
 162 #define setsoftast()    (astpending = 1)
 163
 164 extern int      astpending;     /* need trap before returning to user mode */
 165
 166 /*
 167  * The rest of this should probably be moved to ../atari/ataricpu.h,
 168  * although some of it could probably be put into generic 68k headers.
 169  */
 170 #define BASEPRI(sr)     ((sr & PSL_IPL) == 0)
 171 #endif /* _KERNEL */
 172
 173 /*
 174  * Values for machineid.
 175  */
 176 #define ATARI_68000     1               /* 68000 CPU                    */
 177 #define ATARI_68010     (1<<1)          /* 68010 CPU                    */
 178 #define ATARI_68020     (1L<<2)         /* 68020 CPU                    */
 179 #define ATARI_68030     (1L<<3)         /* 68030 CPU                    */
 180 #define ATARI_68040     (1L<<4)         /* 68040 CPU                    */
 181 #define ATARI_68060     (1L<<6)         /* 68060 CPU                    */
 182 #define ATARI_TT        (1L<<11)        /* This is a TT030              */
 183 #define ATARI_FALCON    (1L<<12)        /*           Falcon             */
 184 #define ATARI_HADES     (1L<<13)        /*           Hades              */
 185 #define ATARI_MILAN     (1L<<14)        /*           Milan              */
 186
 187 #define ATARI_CLKBROKEN (1L<<16)
 188
 189 #define ATARI_ANYCPU    (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \
 190                         |ATARI_68040|ATARI_68060)
 191
 192 #define ATARI_ANYMACH   (ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN)
 193
 194 #if defined(_KERNEL)
 195 extern int machineid;
 196 #endif /* _KERNEL */
 197
 198 /*
 199  * CTL_MACHDEP definitions.
 200  */
 201 #define CPU_CONSDEV     1       /* dev_t: console terminal device */
 202 #define CPU_MAXID       2       /* number of valid machdep ids */
 203
 204 #ifdef _KERNEL
 205 /*
 206  * Prototypes from atari_init.c
 207  */
 208 int     cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *);
 209 int     cpu_dumpsize(void);
 210
 211 /*
 212  * Prototypes from autoconf.c
 213  */
 214 void    config_console(void);
 215
 216 /*
 217  * Prototypes from fpu.c
 218  */
 219 const char *fpu_describe(int);
 220 int     fpu_probe(void);
 221
 222 /*
 223  * Prototypes from locore.s
 224  */
 225 struct fpframe;
 226
 227 void    clearseg(paddr_t);
 228 void    doboot(void);
 229 void    loadustp(int);
 230 void    m68881_save(struct fpframe *);
 231 void    m68881_restore(struct fpframe *);
 232 void    physcopyseg(paddr_t, paddr_t);
 233 u_int   probeva(u_int, u_int);
 234 int     suline(void *, void *);
 235
 236 /*
 237  * Prototypes from machdep.c:
 238  */
 239 int     badbaddr(void *, int);
 240 void    consinit(void);
 241 typedef void (*si_farg)(void *, void *);        /* XXX */
 242 void    init_sicallback(void);                  /* XXX */
 243 void    add_sicallback(si_farg, void *, void *);
 244 void    rem_sicallback(si_farg);
 245 void    dumpsys(void);
 246 vaddr_t reserve_dumppages(vaddr_t);
 247
 248
 249 /*
 250  * Prototypes from nvram.c:
 251  */
 252 struct uio;
 253 int     nvram_uio(struct uio *);
 254
 255 /*
 256  * Prototypes from pci_machdep.c
 257  */
 258 void init_pci_bus(void);
 259
 260 #endif /* _KERNEL */
 261 #endif /* !_MACHINE_CPU_H_ */