1 /* $NetBSD: cpu.h,v 1.47 1997/04/13 05:12:41 scottr Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 /* 42 * Copyright (c) 1992, 1993 BCDL Labs. All rights reserved. 43 * Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot 44 45 * Redistribution of this source code or any part thereof is permitted, 46 * provided that the following conditions are met: 47 * 1) Utilized source contains the copyright message above, this list 48 * of conditions, and the following disclaimer. 49 * 2) Binary objects containing compiled source reproduce the 50 * copyright notice above on startup. 51 * 52 * CAVEAT: This source code is provided "as-is" by BCDL Labs, and any 53 * warranties of ANY kind are disclaimed. We don't even claim that it 54 * won't crash your hard disk. Basically, we want a little credit if 55 * it works, but we don't want to get mail-bombed if it doesn't. 56 */ 57 58 /* 59 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 60 * 61 * @(#)cpu.h 7.7 (Berkeley) 6/27/91 62 */ 63 64 /* 65 ALICE 66 BG -- Sat May 23 23:58:23 EDT 1992 67 Exported defines and stuff unique to mac68k. 68 A lot of this stuff is really specific to the m68k, not just the macs, 69 but there isn't time to do anything about that right now... 70 */ 71 72 #ifndef _CPU_MACHINE_ 73 #define _CPU_MACHINE_ 74 75 #include <machine/pcb.h> 76 77 /* 78 * Get common m68k definitions. 79 */ 80 #include <m68k/cpu.h> 81 #define M68K_MMU_MOTOROLA 82 83 /* 84 * Get interrupt glue. 85 */ 86 #include <machine/intr.h> 87 88 /* 89 * definitions of cpu-dependent requirements 90 * referenced in generic code 91 */ 92 #define cpu_swapin(p) /* nothing */ 93 #define cpu_wait(p) /* nothing */ 94 #define cpu_swapout(p) /* nothing */ 95 void cpu_set_kpc __P((struct proc *, void (*)(struct proc *))); 96 97 /* 98 * Arguments to hardclock, softclock and gatherstats 99 * encapsulate the previous machine state in an opaque 100 * clockframe; for hp300, use just what the hardware 101 * leaves on the stack. 102 */ 103 104 struct clockframe { 105 u_short sr; 106 u_long pc; 107 u_short vo; 108 }; 109 110 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 111 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 112 #define CLKF_PC(framep) ((framep)->pc) 113 #define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */ 114 115 /* 116 * Preempt the current process if in interrupt from user mode, 117 * or after the current trap/syscall if in system mode. 118 */ 119 #define need_resched() { want_resched++; aston(); } 120 121 /* 122 * Give a profiling tick to the current process from the softclock 123 * interrupt. Request an ast to send us through trap(), 124 * marking the proc as needing a profiling tick. 125 */ 126 #define need_proftick(p) ( (p)->p_flag |= P_OWEUPC, aston() ) 127 128 /* 129 * Notify the current process (p) that it has a signal pending, 130 * process as soon as possible. 131 */ 132 #define signotify(p) aston() 133 134 #define aston() (astpending++) 135 136 int astpending; /* need to trap before returning to user mode */ 137 int want_resched; /* resched() was called */ 138 139 #define CPU_CONSDEV 1 140 #define CPU_MAXID 2 141 142 #define CTL_MACHDEP_NAMES { \ 143 { 0, 0 }, \ 144 { "console_device", CTLTYPE_STRUCT }, \ 145 } 146 147 /* values for machineid -- 148 * These are equivalent to the MacOS Gestalt values. */ 149 #define MACH_MACII 6 150 #define MACH_MACIIX 7 151 #define MACH_MACIICX 8 152 #define MACH_MACSE30 9 153 #define MACH_MACIICI 11 154 #define MACH_MACIIFX 13 155 #define MACH_MACIISI 18 156 #define MACH_MACQ900 20 157 #define MACH_MACPB170 21 158 #define MACH_MACQ700 22 159 #define MACH_MACCLASSICII 23 160 #define MACH_MACPB100 24 161 #define MACH_MACPB140 25 162 #define MACH_MACQ950 26 163 #define MACH_MACLCIII 27 164 #define MACH_MACPB210 29 165 #define MACH_MACC650 30 166 #define MACH_MACPB230 32 167 #define MACH_MACPB180 33 168 #define MACH_MACPB160 34 169 #define MACH_MACQ800 35 170 #define MACH_MACQ650 36 171 #define MACH_MACLCII 37 172 #define MACH_MACPB250 38 173 #define MACH_MACIIVI 44 174 #define MACH_MACP600 45 175 #define MACH_MACIIVX 48 176 #define MACH_MACCCLASSIC 49 177 #define MACH_MACPB165C 50 178 #define MACH_MACC610 52 179 #define MACH_MACQ610 53 180 #define MACH_MACPB145 54 181 #define MACH_MACLC520 56 182 #define MACH_MACC660AV 60 183 #define MACH_MACP460 62 184 #define MACH_MACPB180C 71 185 #define MACH_MACPB500 72 186 #define MACH_MACPB270 77 187 #define MACH_MACQ840AV 78 188 #define MACH_MACP550 80 189 #define MACH_MACCCLASSICII 83 190 #define MACH_MACPB165 84 191 #define MACH_MACTV 88 192 #define MACH_MACLC475 89 193 #define MACH_MACLC575 92 194 #define MACH_MACQ605 94 195 #define MACH_MACQ630 98 196 #define MACH_MACPB280 102 197 #define MACH_MACPB280C 103 198 #define MACH_MACPB150 115 199 200 /* 201 * Machine classes. These define subsets of the above machines. 202 */ 203 #define MACH_CLASSH 0x0000 /* Hopeless cases... */ 204 #define MACH_CLASSII 0x0001 /* MacII class */ 205 #define MACH_CLASSIIci 0x0004 /* Have RBV, but no Egret */ 206 #define MACH_CLASSIIsi 0x0005 /* Similar to IIci -- Have Egret. */ 207 #define MACH_CLASSIIvx 0x0006 /* Similar to IIsi -- different via2 emul? */ 208 #define MACH_CLASSLC 0x0007 /* Low-Cost/Performa/Wal-Mart Macs. */ 209 #define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */ 210 #define MACH_CLASSDUO 0x0009 /* Powerbooks Duos. More integration/Docks. */ 211 #define MACH_CLASSIIfx 0x0080 /* The IIfx is in a class by itself. */ 212 #define MACH_CLASSQ 0x0100 /* non-A/V Centris/Quadras. */ 213 #define MACH_CLASSAV 0x0101 /* A/V Centris/Quadras. */ 214 #define MACH_CLASSQ2 0x0102 /* More Centris/Quadras, different sccA. */ 215 216 #define MACH_68020 0 217 #define MACH_68030 1 218 #define MACH_68040 2 219 #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */ 220 221 #ifdef _KERNEL 222 struct mac68k_machine_S { 223 int cpu_model_index; 224 /* 225 * Misc. info from booter. 226 */ 227 int machineid; 228 int mach_processor; 229 int mach_memsize; 230 int booter_version; 231 /* 232 * Debugging flags. 233 */ 234 int do_graybars; 235 int serial_boot_echo; 236 int serial_console; 237 int modem_flags; 238 int modem_cts_clk; 239 int modem_dcd_clk; 240 int print_flags; 241 int print_cts_clk; 242 int print_dcd_clk; 243 /* 244 * Misc. hardware info. 245 */ 246 int scsi80; /* Has NCR 5380 */ 247 int scsi96; /* Has NCR 53C96 */ 248 int scsi96_2; /* Has 2nd 53C96 */ 249 int sonic; /* Has SONIC e-net */ 250 251 int sccClkConst; /* "Constant" for SCC bps */ 252 }; 253 254 /* What kind of model is this */ 255 struct cpu_model_info { 256 int machineid; /* MacOS Gestalt value. */ 257 char *model_major; /* Make this distinction to save a few */ 258 char *model_minor; /* bytes--might be useful, too. */ 259 int class; /* Rough class of machine. */ 260 /* forwarded romvec_s is defined in mac68k/macrom.h */ 261 struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */ 262 }; 263 extern struct cpu_model_info *current_mac_model; 264 265 extern unsigned long IOBase; /* Base address of I/O */ 266 extern unsigned long NuBusBase; /* Base address of NuBus */ 267 268 extern struct mac68k_machine_S mac68k_machine; 269 extern unsigned long load_addr; 270 #endif /* _KERNEL */ 271 272 /* physical memory sections */ 273 #define ROMBASE (0x40800000) 274 #define ROMLEN (0x00200000) /* 2MB will work for all 68k */ 275 #define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */ 276 277 #define IIOMAPSIZE btoc(0x00100000) /* 1MB should be enough */ 278 279 /* XXX -- Need to do something about superspace. 280 * Technically, NuBus superspace starts at 0x60000000, but no 281 * known Macintosh has used any slot lower numbered than 9, and 282 * the super space is defined as 0xS000 0000 through 0xSFFF FFFF 283 * where S is the slot number--ranging from 0x9 - 0xE. 284 */ 285 #define NBSBASE 0x90000000 286 #define NBSTOP 0xF0000000 287 #define NBBASE 0xF9000000 /* NUBUS space */ 288 #define NBTOP 0xFF000000 /* NUBUS space */ 289 #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */ 290 #define NBMEMSIZE 0x01000000 /* 16 megs per card */ 291 #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */ 292 293 __BEGIN_DECLS 294 /* machdep.c */ 295 void mac68k_set_bell_callback __P((int (*)(void *, int, int, int), void *)); 296 int mac68k_ring_bell __P((int, int, int)); 297 u_int get_mapping __P((void)); 298 299 /* locore.s */ 300 void m68881_restore __P((struct fpframe *)); 301 void m68881_save __P((struct fpframe *)); 302 u_int getsfc __P((void)); 303 u_int getdfc __P((void)); 304 void TBIA __P((void)); 305 void TBIAS __P((void)); 306 void TBIS __P((vm_offset_t)); 307 void DCFP __P((vm_offset_t)); 308 void ICPP __P((vm_offset_t)); 309 void DCIU __P((void)); 310 void ICIA __P((void)); 311 void DCFL __P((vm_offset_t)); 312 int suline __P((caddr_t, caddr_t)); 313 void savectx __P((struct pcb *)); 314 void proc_trampoline __P((void)); 315 316 /* trap.c */ 317 void child_return __P((struct proc *, struct frame)); 318 319 /* vm_machdep.c */ 320 void physaccess __P((caddr_t, caddr_t, register int, register int)); 321 void physunaccess __P((caddr_t, register int)); 322 323 __END_DECLS 324 325 #endif /* _CPU_MACHINE_ */ 326