cpu.h revision 1.62
1 /* $NetBSD: cpu.h,v 1.62 1999/06/28 01:56:57 briggs 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 #ifndef _CPU_MACHINE_ 65 #define _CPU_MACHINE_ 66 67 /* 68 * Exported definitions unique to mac68k/68k cpu support. 69 */ 70 71 /* 72 * Get common m68k definitions. 73 */ 74 #include <m68k/cpu.h> 75 #define M68K_MMU_MOTOROLA 76 77 /* 78 * Get interrupt glue. 79 */ 80 #include <machine/intr.h> 81 82 /* 83 * definitions of cpu-dependent requirements 84 * referenced in generic code 85 */ 86 #define cpu_swapin(p) /* nothing */ 87 #define cpu_wait(p) /* nothing */ 88 #define cpu_swapout(p) /* nothing */ 89 90 /* 91 * Arguments to hardclock and gatherstats encapsulate the previous 92 * machine state in an opaque clockframe. One the hp300, we use 93 * what the hardware pushes on an interrupt (frame format 0). 94 */ 95 struct clockframe { 96 u_short sr; /* sr at time of interrupt */ 97 u_long pc; /* pc at time of interrupt */ 98 u_short vo; /* vector offset (4-word frame) */ 99 }; 100 101 #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) 102 #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) 103 #define CLKF_PC(framep) ((framep)->pc) 104 #define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */ 105 106 /* 107 * Preempt the current process if in interrupt from user mode, 108 * or after the current trap/syscall if in system mode. 109 */ 110 extern int want_resched; /* resched() was called */ 111 #define need_resched() { want_resched++; aston(); } 112 113 /* 114 * Give a profiling tick to the current process from the softclock 115 * interrupt. Request an ast to send us through trap(), 116 * marking the proc as needing a profiling tick. 117 */ 118 #define need_proftick(p) ( (p)->p_flag |= P_OWEUPC, aston() ) 119 120 /* 121 * Notify the current process (p) that it has a signal pending, 122 * process as soon as possible. 123 */ 124 #define signotify(p) aston() 125 126 extern int astpending; /* need to trap before returning to user mode */ 127 #define aston() (astpending++) 128 129 #define CPU_CONSDEV 1 130 #define CPU_MAXID 2 131 132 #define CTL_MACHDEP_NAMES { \ 133 { 0, 0 }, \ 134 { "console_device", CTLTYPE_STRUCT }, \ 135 } 136 137 /* values for machineid -- 138 * These are equivalent to the MacOS Gestalt values. */ 139 #define MACH_MACII 6 140 #define MACH_MACIIX 7 141 #define MACH_MACIICX 8 142 #define MACH_MACSE30 9 143 #define MACH_MACIICI 11 144 #define MACH_MACIIFX 13 145 #define MACH_MACIISI 18 146 #define MACH_MACQ900 20 147 #define MACH_MACPB170 21 148 #define MACH_MACQ700 22 149 #define MACH_MACCLASSICII 23 150 #define MACH_MACPB100 24 151 #define MACH_MACPB140 25 152 #define MACH_MACQ950 26 153 #define MACH_MACLCIII 27 154 #define MACH_MACPB210 29 155 #define MACH_MACC650 30 156 #define MACH_MACPB230 32 157 #define MACH_MACPB180 33 158 #define MACH_MACPB160 34 159 #define MACH_MACQ800 35 160 #define MACH_MACQ650 36 161 #define MACH_MACLCII 37 162 #define MACH_MACPB250 38 163 #define MACH_MACIIVI 44 164 #define MACH_MACP600 45 165 #define MACH_MACIIVX 48 166 #define MACH_MACCCLASSIC 49 167 #define MACH_MACPB165C 50 168 #define MACH_MACC610 52 169 #define MACH_MACQ610 53 170 #define MACH_MACPB145 54 171 #define MACH_MACLC520 56 172 #define MACH_MACC660AV 60 173 #define MACH_MACP460 62 174 #define MACH_MACPB180C 71 175 #define MACH_MACPB500 72 176 #define MACH_MACPB270 77 177 #define MACH_MACQ840AV 78 178 #define MACH_MACP550 80 179 #define MACH_MACCCLASSICII 83 180 #define MACH_MACPB165 84 181 #define MACH_MACTV 88 182 #define MACH_MACLC475 89 183 #define MACH_MACLC475_33 90 184 #define MACH_MACLC575 92 185 #define MACH_MACQ605 94 186 #define MACH_MACQ605_33 95 187 #define MACH_MACQ630 98 188 #define MACH_MACP580 99 189 #define MACH_MACPB280 102 190 #define MACH_MACPB280C 103 191 #define MACH_MACPB150 115 192 #define MACH_MACPB190 122 193 194 /* 195 * Machine classes. These define subsets of the above machines. 196 */ 197 #define MACH_CLASSH 0x0000 /* Hopeless cases... */ 198 #define MACH_CLASSII 0x0001 /* MacII class */ 199 #define MACH_CLASSIIci 0x0004 /* Have RBV, but no Egret */ 200 #define MACH_CLASSIIsi 0x0005 /* Similar to IIci -- Have Egret. */ 201 #define MACH_CLASSIIvx 0x0006 /* Similar to IIsi -- different via2 emul? */ 202 #define MACH_CLASSLC 0x0007 /* Low-Cost/Performa/Wal-Mart Macs. */ 203 #define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */ 204 #define MACH_CLASSDUO 0x0009 /* Powerbooks Duos. More integration/Docks. */ 205 #define MACH_CLASSIIfx 0x0080 /* The IIfx is in a class by itself. */ 206 #define MACH_CLASSQ 0x0100 /* non-A/V Centris/Quadras. */ 207 #define MACH_CLASSAV 0x0101 /* A/V Centris/Quadras. */ 208 #define MACH_CLASSQ2 0x0102 /* More Centris/Quadras, different sccA. */ 209 #define MACH_CLASSP580 0x0103 /* Similar to Quadras, but not quite.. */ 210 211 #define MACH_68020 0 212 #define MACH_68030 1 213 #define MACH_68040 2 214 #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */ 215 216 #ifdef _KERNEL 217 struct mac68k_machine_S { 218 int cpu_model_index; 219 /* 220 * Misc. info from booter. 221 */ 222 int machineid; 223 int mach_processor; 224 int mach_memsize; 225 int booter_version; 226 /* 227 * Debugging flags. 228 */ 229 int do_graybars; 230 int serial_boot_echo; 231 int serial_console; 232 233 int zs_chip; /* what type of chip we've got */ 234 int modem_flags; 235 int modem_cts_clk; 236 int modem_dcd_clk; 237 int modem_d_speed; 238 int print_flags; 239 int print_cts_clk; 240 int print_dcd_clk; 241 int print_d_speed; 242 /* 243 * Misc. hardware info. 244 */ 245 int scsi80; /* Has NCR 5380 */ 246 int scsi96; /* Has NCR 53C96 */ 247 int scsi96_2; /* Has 2nd 53C96 */ 248 int sonic; /* Has SONIC e-net */ 249 250 int via1_ipl; 251 int via2_ipl; 252 int aux_interrupts; 253 }; 254 255 /* What kind of model is this */ 256 struct cpu_model_info { 257 int machineid; /* MacOS Gestalt value. */ 258 char *model_major; /* Make this distinction to save a few */ 259 char *model_minor; /* bytes--might be useful, too. */ 260 int class; /* Rough class of machine. */ 261 /* forwarded romvec_s is defined in mac68k/macrom.h */ 262 struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */ 263 }; 264 extern struct cpu_model_info *current_mac_model; 265 266 extern unsigned long IOBase; /* Base address of I/O */ 267 extern unsigned long NuBusBase; /* Base address of NuBus */ 268 269 extern struct mac68k_machine_S mac68k_machine; 270 extern unsigned long load_addr; 271 #endif /* _KERNEL */ 272 273 /* physical memory sections */ 274 #define ROMBASE (0x40800000) 275 #define ROMLEN (0x00200000) /* 2MB will work for all 68k */ 276 #define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */ 277 278 #define IIOMAPSIZE btoc(0x00100000) /* 1MB should be enough */ 279 280 /* XXX -- Need to do something about superspace. 281 * Technically, NuBus superspace starts at 0x60000000, but no 282 * known Macintosh has used any slot lower numbered than 9, and 283 * the super space is defined as 0xS000 0000 through 0xSFFF FFFF 284 * where S is the slot number--ranging from 0x9 - 0xE. 285 */ 286 #define NBSBASE 0x90000000 287 #define NBSTOP 0xF0000000 288 #define NBBASE 0xF9000000 /* NUBUS space */ 289 #define NBTOP 0xFF000000 /* NUBUS space */ 290 #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */ 291 #define NBMEMSIZE 0x01000000 /* 16 megs per card */ 292 #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */ 293 294 #ifdef _KERNEL 295 296 struct frame; 297 struct fpframe; 298 struct pcb; 299 300 /* machdep.c */ 301 void mac68k_set_bell_callback __P((int (*)(void *, int, int, int), void *)); 302 int mac68k_ring_bell __P((int, int, int)); 303 u_int get_mapping __P((void)); 304 305 /* locore.s functions */ 306 void m68881_save __P((struct fpframe *)); 307 void m68881_restore __P((struct fpframe *)); 308 void DCIA __P((void)); 309 void DCIS __P((void)); 310 void DCIU __P((void)); 311 void ICIA __P((void)); 312 void ICPA __P((void)); 313 void PCIA __P((void)); 314 void TBIA __P((void)); 315 void TBIS __P((vaddr_t)); 316 void TBIAS __P((void)); 317 void TBIAU __P((void)); 318 #if defined(M68040) 319 void DCFA __P((void)); 320 void DCFP __P((paddr_t)); 321 void DCFL __P((paddr_t)); 322 void DCPL __P((paddr_t)); 323 void DCPP __P((paddr_t)); 324 void ICPL __P((paddr_t)); 325 void ICPP __P((paddr_t)); 326 #endif 327 int suline __P((caddr_t, caddr_t)); 328 void savectx __P((struct pcb *)); 329 void switch_exit __P((struct proc *)); 330 void proc_trampoline __P((void)); 331 void loadustp __P((int)); 332 333 /* sys_machdep.c */ 334 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 335 336 /* vm_machdep.c */ 337 void physaccess __P((caddr_t, caddr_t, register int, register int)); 338 void physunaccess __P((caddr_t, register int)); 339 int kvtop __P((caddr_t)); 340 341 /* trap.c */ 342 void child_return __P((void *)); 343 344 #endif 345 346 #endif /* _CPU_MACHINE_ */ 347
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