sys/arch/mac68k/include/cpu.h

   1 /*      $NetBSD: cpu.h,v 1.92 2008/02/27 18:26:16 xtraeme 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 /*
  36  * Copyright (c) 1988 University of Utah.
  37  *
  38  * This code is derived from software contributed to Berkeley by
  39  * the Systems Programming Group of the University of Utah Computer
  40  * Science Department.
  41  *
  42  * Redistribution and use in source and binary forms, with or without
  43  * modification, are permitted provided that the following conditions
  44  * are met:
  45  * 1. Redistributions of source code must retain the above copyright
  46  *    notice, this list of conditions and the following disclaimer.
  47  * 2. Redistributions in binary form must reproduce the above copyright
  48  *    notice, this list of conditions and the following disclaimer in the
  49  *    documentation and/or other materials provided with the distribution.
  50  * 3. All advertising materials mentioning features or use of this software
  51  *    must display the following acknowledgement:
  52  *      This product includes software developed by the University of
  53  *      California, Berkeley and its contributors.
  54  * 4. Neither the name of the University nor the names of its contributors
  55  *    may be used to endorse or promote products derived from this software
  56  *    without specific prior written permission.
  57  *
  58  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  59  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  60  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  61  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  62  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  63  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  64  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  65  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  66  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  67  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  68  * SUCH DAMAGE.
  69  */
  70
  71 /*
  72  *      Copyright (c) 1992, 1993 BCDL Labs.  All rights reserved.
  73  *      Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
  74
  75  *      Redistribution of this source code or any part thereof is permitted,
  76  *       provided that the following conditions are met:
  77  *      1) Utilized source contains the copyright message above, this list
  78  *       of conditions, and the following disclaimer.
  79  *      2) Binary objects containing compiled source reproduce the
  80  *       copyright notice above on startup.
  81  *
  82  *      CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
  83  *       warranties of ANY kind are disclaimed.  We don't even claim that it
  84  *       won't crash your hard disk.  Basically, we want a little credit if
  85  *       it works, but we don't want to get mail-bombed if it doesn't.
  86  */
  87
  88 /*
  89  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
  90  *
  91  *      @(#)cpu.h       7.7 (Berkeley) 6/27/91
  92  */
  93
  94 #ifndef _CPU_MACHINE_
  95 #define _CPU_MACHINE_
  96
  97 #if defined(_KERNEL)
  98
  99 /*
 100  * Exported definitions unique to mac68k/68k cpu support.
 101  */
 102
 103 #if defined(_KERNEL_OPT)
 104 #include "opt_lockdebug.h"
 105 #endif
 106
 107 /*
 108  * Get common m68k definitions.
 109  */
 110 #include <m68k/cpu.h>
 111 #define M68K_MMU_MOTOROLA
 112
 113 /*
 114  * Get interrupt glue.
 115  */
 116 #include <machine/intr.h>
 117
 118 #include <sys/cpu_data.h>
 119 struct cpu_info {
 120         struct cpu_data ci_data;        /* MI per-cpu data */
 121         cpuid_t ci_cpuid;
 122         int     ci_mtx_oldspl;
 123         int     ci_mtx_count;
 124         int     ci_want_resched;
 125 };
 126
 127 extern struct cpu_info cpu_info_store;
 128
 129 #define curcpu()                        (&cpu_info_store)
 130
 131 /*
 132  * definitions of cpu-dependent requirements
 133  * referenced in generic code
 134  */
 135 #define cpu_number()                    0
 136
 137 void    cpu_proc_fork(struct proc *, struct proc *);
 138
 139
 140 /*
 141  * Arguments to hardclock and gatherstats encapsulate the previous
 142  * machine state in an opaque clockframe.  One the hp300, we use
 143  * what the hardware pushes on an interrupt (frame format 0).
 144  */
 145 struct clockframe {
 146         u_short sr;             /* sr at time of interrupt */
 147         u_long  pc;             /* pc at time of interrupt */
 148         u_short vo;             /* vector offset (4-word frame) */
 149 } __attribute__((packed));
 150
 151 #define CLKF_USERMODE(framep)   (((framep)->sr & PSL_S) == 0)
 152 #define CLKF_PC(framep)         ((framep)->pc)
 153 #define CLKF_INTR(framep)       (0) /* XXX should use PSL_M (see hp300) */
 154
 155 /*
 156  * Preempt the current process if in interrupt from user mode,
 157  * or after the current trap/syscall if in system mode.
 158  */
 159 #define cpu_need_resched(ci, v) { ci->ci_want_resched++; aston(); }
 160
 161 /*
 162  * Give a profiling tick to the current process from the softclock
 163  * interrupt.  Request an ast to send us through trap(),
 164  * marking the proc as needing a profiling tick.
 165  */
 166 #define cpu_need_proftick(l)    ( (l)->l_pflag |= LP_OWEUPC, aston() )
 167
 168 /*
 169  * Notify the current process (p) that it has a signal pending,
 170  * process as soon as possible.
 171  */
 172 #define cpu_signotify(l)        aston()
 173
 174 extern int astpending;          /* need to trap before returning to user mode */
 175 #define aston() (astpending++)
 176
 177 #endif /* _KERNEL */
 178
 179 #define CPU_CONSDEV     1
 180 #define CPU_MAXID       2
 181
 182 /* values for machineid --
 183  *      These are equivalent to the MacOS Gestalt values. */
 184 #define MACH_MACII              6
 185 #define MACH_MACIIX             7
 186 #define MACH_MACIICX            8
 187 #define MACH_MACSE30            9
 188 #define MACH_MACIICI            11
 189 #define MACH_MACIIFX            13
 190 #define MACH_MACIISI            18
 191 #define MACH_MACQ900            20
 192 #define MACH_MACPB170           21
 193 #define MACH_MACQ700            22
 194 #define MACH_MACCLASSICII       23
 195 #define MACH_MACPB100           24
 196 #define MACH_MACPB140           25
 197 #define MACH_MACQ950            26
 198 #define MACH_MACLCIII           27
 199 #define MACH_MACPB210           29
 200 #define MACH_MACC650            30
 201 #define MACH_MACPB230           32
 202 #define MACH_MACPB180           33
 203 #define MACH_MACPB160           34
 204 #define MACH_MACQ800            35
 205 #define MACH_MACQ650            36
 206 #define MACH_MACLCII            37
 207 #define MACH_MACPB250           38
 208 #define MACH_MACIIVI            44
 209 #define MACH_MACP600            45
 210 #define MACH_MACIIVX            48
 211 #define MACH_MACCCLASSIC        49
 212 #define MACH_MACPB165C          50
 213 #define MACH_MACC610            52
 214 #define MACH_MACQ610            53
 215 #define MACH_MACPB145           54
 216 #define MACH_MACLC520           56
 217 #define MACH_MACC660AV          60
 218 #define MACH_MACP460            62
 219 #define MACH_MACPB180C          71
 220 #define MACH_MACPB500           72
 221 #define MACH_MACPB270           77
 222 #define MACH_MACQ840AV          78
 223 #define MACH_MACP550            80
 224 #define MACH_MACCCLASSICII      83
 225 #define MACH_MACPB165           84
 226 #define MACH_MACPB190CS         85
 227 #define MACH_MACTV              88
 228 #define MACH_MACLC475           89
 229 #define MACH_MACLC475_33        90
 230 #define MACH_MACLC575           92
 231 #define MACH_MACQ605            94
 232 #define MACH_MACQ605_33         95
 233 #define MACH_MACQ630            98
 234 #define MACH_MACP580            99
 235 #define MACH_MACPB280           102
 236 #define MACH_MACPB280C          103
 237 #define MACH_MACPB150           115
 238 #define MACH_MACPB190           122
 239
 240 /*
 241  * Machine classes.  These define subsets of the above machines.
 242  */
 243 #define MACH_CLASSH     0x0000  /* Hopeless cases... */
 244 #define MACH_CLASSII    0x0001  /* MacII class */
 245 #define MACH_CLASSIIci  0x0004  /* Have RBV, but no Egret */
 246 #define MACH_CLASSIIsi  0x0005  /* Similar to IIci -- Have Egret. */
 247 #define MACH_CLASSIIvx  0x0006  /* Similar to IIsi -- different via2 emul? */
 248 #define MACH_CLASSLC    0x0007  /* Low-Cost/Performa/Wal-Mart Macs. */
 249 #define MACH_CLASSPB    0x0008  /* Powerbooks.  Power management. */
 250 #define MACH_CLASSDUO   0x0009  /* Powerbooks Duos.  More integration/Docks. */
 251 #define MACH_CLASSIIfx  0x0080  /* The IIfx is in a class by itself. */
 252 #define MACH_CLASSQ     0x0100  /* non-A/V Centris/Quadras. */
 253 #define MACH_CLASSAV    0x0101  /* A/V Centris/Quadras. */
 254 #define MACH_CLASSQ2    0x0102  /* More Centris/Quadras, different sccA. */
 255 #define MACH_CLASSP580  0x0103  /* Similar to Quadras, but not quite.. */
 256
 257 #define MACH_68020      0
 258 #define MACH_68030      1
 259 #define MACH_68040      2
 260 #define MACH_PENTIUM    3       /* 66 and 99 MHz versions *only* */
 261
 262 #ifdef _KERNEL
 263 struct mac68k_machine_S {
 264         int                     cpu_model_index;
 265         /*
 266          * Misc. info from booter.
 267          */
 268         int                     machineid;
 269         int                     mach_processor;
 270         int                     mach_memsize;
 271         int                     booter_version;
 272         /*
 273          * Debugging flags.
 274          */
 275         int                     do_graybars;
 276         int                     serial_boot_echo;
 277         int                     serial_console;
 278
 279         int                     zs_chip;        /* what type of chip we've got */
 280         int                     modem_flags;
 281         int                     modem_cts_clk;
 282         int                     modem_dcd_clk;
 283         int                     modem_d_speed;
 284         int                     print_flags;
 285         int                     print_cts_clk;
 286         int                     print_dcd_clk;
 287         int                     print_d_speed;
 288         /*
 289          * Misc. hardware info.
 290          */
 291         int                     scsi80;         /* Has NCR 5380 */
 292         int                     scsi96;         /* Has NCR 53C96 */
 293         int                     scsi96_2;       /* Has 2nd 53C96 */
 294         int                     sonic;          /* Has SONIC e-net */
 295
 296         int                     via1_ipl;
 297         int                     via2_ipl;
 298         int                     aux_interrupts;
 299 };
 300
 301         /* What kind of model is this */
 302 struct cpu_model_info {
 303         int     machineid;      /* MacOS Gestalt value. */
 304         const char      *model_major;   /* Make this distinction to save a few */
 305         const char      *model_minor;   /*      bytes--might be useful, too. */
 306         int     class;          /* Rough class of machine. */
 307           /* forwarded romvec_s is defined in mac68k/macrom.h */
 308         struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */
 309 };
 310 extern struct cpu_model_info *current_mac_model;
 311
 312 extern unsigned long            IOBase;         /* Base address of I/O */
 313 extern unsigned long            NuBusBase;      /* Base address of NuBus */
 314
 315 extern  struct mac68k_machine_S mac68k_machine;
 316 extern  unsigned long           load_addr;
 317 #endif /* _KERNEL */
 318
 319 /* physical memory sections */
 320 #define ROMBASE         (0x40800000)
 321 #define ROMLEN          (0x00200000)            /* 2MB will work for all 68k */
 322 #define ROMMAPSIZE      btoc(ROMLEN)            /* 32k of page tables.  */
 323
 324 #define IIOMAPSIZE      btoc(0x00100000)        /* 1MB should be enough */
 325
 326 /* XXX -- Need to do something about superspace.
 327  * Technically, NuBus superspace starts at 0x60000000, but no
 328  * known Macintosh has used any slot lower numbered than 9, and
 329  * the super space is defined as 0xS000 0000 through 0xSFFF FFFF
 330  * where S is the slot number--ranging from 0x9 - 0xE.
 331  */
 332 #define NBSBASE         0x90000000
 333 #define NBSTOP          0xF0000000
 334 #define NBBASE          0xF9000000      /* NUBUS space */
 335 #define NBTOP           0xFF000000      /* NUBUS space */
 336 #define NBMAPSIZE       btoc(NBTOP-NBBASE)      /* ~ 96 megs */
 337 #define NBMEMSIZE       0x01000000      /* 16 megs per card */
 338 #define NBROMOFFSET     0x00FF0000      /* Last 64K == ROM */
 339
 340 #ifdef _KERNEL
 341
 342 struct fpframe;
 343
 344 /* machdep.c */
 345 void    mac68k_set_bell_callback(int (*)(void *, int, int, int), void *);
 346 int     mac68k_ring_bell(int, int, int);
 347 u_int   get_mapping(void);
 348
 349 /* locore.s functions */
 350 void    m68881_save(struct fpframe *);
 351 void    m68881_restore(struct fpframe *);
 352 int     suline(void *, void *);
 353 void    loadustp(int);
 354
 355 /* fpu.c */
 356 void    initfpu(void);
 357
 358 #endif
 359
 360 #endif  /* _CPU_MACHINE_ */