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_swapin(p) /* nothing */ 136 #define cpu_swapout(p) /* nothing */ 137 #define cpu_number() 0 138 139 void cpu_proc_fork(struct proc *, struct proc *); 140 141 142 /* 143 * Arguments to hardclock and gatherstats encapsulate the previous 144 * machine state in an opaque clockframe. One the hp300, we use 145 * what the hardware pushes on an interrupt (frame format 0). 146 */ 147 struct clockframe { 148 u_short sr; /* sr at time of interrupt */ 149 u_long pc; /* pc at time of interrupt */ 150 u_short vo; /* vector offset (4-word frame) */ 151 } __attribute__((packed)); 152 153 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 154 #define CLKF_PC(framep) ((framep)->pc) 155 #define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */ 156 157 /* 158 * Preempt the current process if in interrupt from user mode, 159 * or after the current trap/syscall if in system mode. 160 */ 161 #define cpu_need_resched(ci, v) { ci->ci_want_resched++; aston(); } 162 163 /* 164 * Give a profiling tick to the current process from the softclock 165 * interrupt. Request an ast to send us through trap(), 166 * marking the proc as needing a profiling tick. 167 */ 168 #define cpu_need_proftick(l) ( (l)->l_pflag |= LP_OWEUPC, aston() ) 169 170 /* 171 * Notify the current process (p) that it has a signal pending, 172 * process as soon as possible. 173 */ 174 #define cpu_signotify(l) aston() 175 176 extern int astpending; /* need to trap before returning to user mode */ 177 #define aston() (astpending++) 178 179 #endif /* _KERNEL */ 180 181 #define CPU_CONSDEV 1 182 #define CPU_MAXID 2 183 184 /* values for machineid -- 185 * These are equivalent to the MacOS Gestalt values. */ 186 #define MACH_MACII 6 187 #define MACH_MACIIX 7 188 #define MACH_MACIICX 8 189 #define MACH_MACSE30 9 190 #define MACH_MACIICI 11 191 #define MACH_MACIIFX 13 192 #define MACH_MACIISI 18 193 #define MACH_MACQ900 20 194 #define MACH_MACPB170 21 195 #define MACH_MACQ700 22 196 #define MACH_MACCLASSICII 23 197 #define MACH_MACPB100 24 198 #define MACH_MACPB140 25 199 #define MACH_MACQ950 26 200 #define MACH_MACLCIII 27 201 #define MACH_MACPB210 29 202 #define MACH_MACC650 30 203 #define MACH_MACPB230 32 204 #define MACH_MACPB180 33 205 #define MACH_MACPB160 34 206 #define MACH_MACQ800 35 207 #define MACH_MACQ650 36 208 #define MACH_MACLCII 37 209 #define MACH_MACPB250 38 210 #define MACH_MACIIVI 44 211 #define MACH_MACP600 45 212 #define MACH_MACIIVX 48 213 #define MACH_MACCCLASSIC 49 214 #define MACH_MACPB165C 50 215 #define MACH_MACC610 52 216 #define MACH_MACQ610 53 217 #define MACH_MACPB145 54 218 #define MACH_MACLC520 56 219 #define MACH_MACC660AV 60 220 #define MACH_MACP460 62 221 #define MACH_MACPB180C 71 222 #define MACH_MACPB500 72 223 #define MACH_MACPB270 77 224 #define MACH_MACQ840AV 78 225 #define MACH_MACP550 80 226 #define MACH_MACCCLASSICII 83 227 #define MACH_MACPB165 84 228 #define MACH_MACPB190CS 85 229 #define MACH_MACTV 88 230 #define MACH_MACLC475 89 231 #define MACH_MACLC475_33 90 232 #define MACH_MACLC575 92 233 #define MACH_MACQ605 94 234 #define MACH_MACQ605_33 95 235 #define MACH_MACQ630 98 236 #define MACH_MACP580 99 237 #define MACH_MACPB280 102 238 #define MACH_MACPB280C 103 239 #define MACH_MACPB150 115 240 #define MACH_MACPB190 122 241 242 /* 243 * Machine classes. These define subsets of the above machines. 244 */ 245 #define MACH_CLASSH 0x0000 /* Hopeless cases... */ 246 #define MACH_CLASSII 0x0001 /* MacII class */ 247 #define MACH_CLASSIIci 0x0004 /* Have RBV, but no Egret */ 248 #define MACH_CLASSIIsi 0x0005 /* Similar to IIci -- Have Egret. */ 249 #define MACH_CLASSIIvx 0x0006 /* Similar to IIsi -- different via2 emul? */ 250 #define MACH_CLASSLC 0x0007 /* Low-Cost/Performa/Wal-Mart Macs. */ 251 #define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */ 252 #define MACH_CLASSDUO 0x0009 /* Powerbooks Duos. More integration/Docks. */ 253 #define MACH_CLASSIIfx 0x0080 /* The IIfx is in a class by itself. */ 254 #define MACH_CLASSQ 0x0100 /* non-A/V Centris/Quadras. */ 255 #define MACH_CLASSAV 0x0101 /* A/V Centris/Quadras. */ 256 #define MACH_CLASSQ2 0x0102 /* More Centris/Quadras, different sccA. */ 257 #define MACH_CLASSP580 0x0103 /* Similar to Quadras, but not quite.. */ 258 259 #define MACH_68020 0 260 #define MACH_68030 1 261 #define MACH_68040 2 262 #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */ 263 264 #ifdef _KERNEL 265 struct mac68k_machine_S { 266 int cpu_model_index; 267 /* 268 * Misc. info from booter. 269 */ 270 int machineid; 271 int mach_processor; 272 int mach_memsize; 273 int booter_version; 274 /* 275 * Debugging flags. 276 */ 277 int do_graybars; 278 int serial_boot_echo; 279 int serial_console; 280 281 int zs_chip; /* what type of chip we've got */ 282 int modem_flags; 283 int modem_cts_clk; 284 int modem_dcd_clk; 285 int modem_d_speed; 286 int print_flags; 287 int print_cts_clk; 288 int print_dcd_clk; 289 int print_d_speed; 290 /* 291 * Misc. hardware info. 292 */ 293 int scsi80; /* Has NCR 5380 */ 294 int scsi96; /* Has NCR 53C96 */ 295 int scsi96_2; /* Has 2nd 53C96 */ 296 int sonic; /* Has SONIC e-net */ 297 298 int via1_ipl; 299 int via2_ipl; 300 int aux_interrupts; 301 }; 302 303 /* What kind of model is this */ 304 struct cpu_model_info { 305 int machineid; /* MacOS Gestalt value. */ 306 const char *model_major; /* Make this distinction to save a few */ 307 const char *model_minor; /* bytes--might be useful, too. */ 308 int class; /* Rough class of machine. */ 309 /* forwarded romvec_s is defined in mac68k/macrom.h */ 310 struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */ 311 }; 312 extern struct cpu_model_info *current_mac_model; 313 314 extern unsigned long IOBase; /* Base address of I/O */ 315 extern unsigned long NuBusBase; /* Base address of NuBus */ 316 317 extern struct mac68k_machine_S mac68k_machine; 318 extern unsigned long load_addr; 319 #endif /* _KERNEL */ 320 321 /* physical memory sections */ 322 #define ROMBASE (0x40800000) 323 #define ROMLEN (0x00200000) /* 2MB will work for all 68k */ 324 #define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */ 325 326 #define IIOMAPSIZE btoc(0x00100000) /* 1MB should be enough */ 327 328 /* XXX -- Need to do something about superspace. 329 * Technically, NuBus superspace starts at 0x60000000, but no 330 * known Macintosh has used any slot lower numbered than 9, and 331 * the super space is defined as 0xS000 0000 through 0xSFFF FFFF 332 * where S is the slot number--ranging from 0x9 - 0xE. 333 */ 334 #define NBSBASE 0x90000000 335 #define NBSTOP 0xF0000000 336 #define NBBASE 0xF9000000 /* NUBUS space */ 337 #define NBTOP 0xFF000000 /* NUBUS space */ 338 #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */ 339 #define NBMEMSIZE 0x01000000 /* 16 megs per card */ 340 #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */ 341 342 #ifdef _KERNEL 343 344 struct fpframe; 345 346 /* machdep.c */ 347 void mac68k_set_bell_callback(int (*)(void *, int, int, int), void *); 348 int mac68k_ring_bell(int, int, int); 349 u_int get_mapping(void); 350 351 /* locore.s functions */ 352 void m68881_save(struct fpframe *); 353 void m68881_restore(struct fpframe *); 354 int suline(void *, void *); 355 void loadustp(int); 356 357 /* fpu.c */ 358 void initfpu(void); 359 360 #endif 361 362 #endif /* _CPU_MACHINE_ */ 363