1 /* $NetBSD: machdep.c,v 1.84 2002/10/20 02:37:38 chs Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1986, 1990, 1993 6 * The Regents of the University of California. 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 * from: Utah Hdr: machdep.c 1.74 92/12/20 41 * from: @(#)machdep.c 8.10 (Berkeley) 4/20/94 42 */ 43 44 #include "opt_ddb.h" 45 #include "opt_kgdb.h" 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/proc.h> 51 #include <sys/buf.h> 52 #include <sys/reboot.h> 53 #include <sys/conf.h> 54 #include <sys/file.h> 55 #include <sys/device.h> 56 #include <sys/malloc.h> 57 #include <sys/mbuf.h> 58 #include <sys/msgbuf.h> 59 #include <sys/ioctl.h> 60 #include <sys/tty.h> 61 #include <sys/mount.h> 62 #include <sys/user.h> 63 #include <sys/exec.h> 64 #include <sys/core.h> 65 #include <sys/kcore.h> 66 #include <sys/vnode.h> 67 #include <sys/syscallargs.h> 68 #ifdef KGDB 69 #include <sys/kgdb.h> 70 #endif 71 72 #include <uvm/uvm_extern.h> 73 74 #include <sys/sysctl.h> 75 76 #include <dev/cons.h> 77 78 #include <machine/cpu.h> 79 #include <machine/dvma.h> 80 #include <machine/idprom.h> 81 #include <machine/kcore.h> 82 #include <machine/reg.h> 83 #include <machine/psl.h> 84 #include <machine/pte.h> 85 86 #if defined(DDB) 87 #include <machine/db_machdep.h> 88 #include <ddb/db_sym.h> 89 #include <ddb/db_extern.h> 90 #endif 91 92 #include <sun3/sun3/machdep.h> 93 94 /* Defined in locore.s */ 95 extern char kernel_text[]; 96 /* Defined by the linker */ 97 extern char etext[]; 98 99 /* Our exported CPU info; we can have only one. */ 100 struct cpu_info cpu_info_store; 101 102 struct vm_map *exec_map = NULL; 103 struct vm_map *mb_map = NULL; 104 struct vm_map *phys_map = NULL; 105 106 int physmem; 107 int fputype; 108 caddr_t msgbufaddr; 109 110 /* Virtual page frame for /dev/mem (see mem.c) */ 111 vaddr_t vmmap; 112 113 union sun3sir sun3sir; 114 115 /* 116 * safepri is a safe priority for sleep to set for a spin-wait 117 * during autoconfiguration or after a panic. 118 */ 119 int safepri = PSL_LOWIPL; 120 121 u_char cpu_machine_id = 0; 122 char *cpu_string = NULL; 123 int cpu_has_vme = 0; 124 int has_iocache = 0; 125 126 vaddr_t dumppage; 127 128 static void identifycpu __P((void)); 129 static void initcpu __P((void)); 130 131 /* 132 * Console initialization: called early on from main, 133 * before vm init or cpu_startup. This system is able 134 * to use the console for output immediately (via PROM) 135 * but can not use it for input until after this point. 136 */ 137 void 138 consinit() 139 { 140 141 /* 142 * Switch from the PROM console (output only) 143 * to our own console driver. 144 */ 145 cninit(); 146 147 #ifdef DDB 148 { 149 extern int nsym; 150 extern char *ssym, *esym; 151 152 ddb_init(nsym, ssym, esym); 153 } 154 #endif /* DDB */ 155 156 /* 157 * Now that the console can do input as well as 158 * output, consider stopping for a debugger. 159 */ 160 if (boothowto & RB_KDB) { 161 #ifdef KGDB 162 /* XXX - Ask on console for kgdb_dev? */ 163 /* Note: this will just return if kgdb_dev==NODEV */ 164 kgdb_connect(1); 165 #else /* KGDB */ 166 /* Either DDB or no debugger (just PROM). */ 167 Debugger(); 168 #endif /* KGDB */ 169 } 170 } 171 172 /* 173 * cpu_startup: allocate memory for variable-sized tables, 174 * initialize cpu, and do autoconfiguration. 175 * 176 * This is called early in init_main.c:main(), after the 177 * kernel memory allocator is ready for use, but before 178 * the creation of processes 1,2, and mountroot, etc. 179 */ 180 void 181 cpu_startup() 182 { 183 caddr_t v; 184 vsize_t size; 185 int sz, i, base, residual; 186 vaddr_t minaddr, maxaddr; 187 char pbuf[9]; 188 189 /* 190 * Initialize message buffer (for kernel printf). 191 * This is put in physical page zero so it will 192 * always be in the same place after a reboot. 193 * Its mapping was prepared in pmap_bootstrap(). 194 * Also, offset some to avoid PROM scribbles. 195 */ 196 v = (caddr_t) KERNBASE; 197 msgbufaddr = (caddr_t)(v + MSGBUFOFF); 198 initmsgbuf(msgbufaddr, MSGBUFSIZE); 199 200 /* 201 * Good {morning,afternoon,evening,night}. 202 */ 203 printf(version); 204 identifycpu(); 205 initfpu(); /* also prints FPU type */ 206 207 format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); 208 printf("total memory = %s\n", pbuf); 209 210 /* 211 * Get scratch page for dumpsys(). 212 */ 213 if ((dumppage = uvm_km_alloc(kernel_map, NBPG)) == 0) 214 panic("startup: alloc dumppage"); 215 216 /* 217 * Find out how much space we need, allocate it, 218 * and then give everything true virtual addresses. 219 */ 220 sz = (u_int)allocsys(NULL, NULL); 221 if ((v = (caddr_t)uvm_km_alloc(kernel_map, round_page(sz))) == 0) 222 panic("startup: no room for tables"); 223 if (allocsys(v, NULL) - v != sz) 224 panic("startup: table size inconsistency"); 225 226 /* 227 * Now allocate buffers proper. They are different than the above 228 * in that they usually occupy more virtual memory than physical. 229 */ 230 size = MAXBSIZE * nbuf; 231 if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 232 NULL, UVM_UNKNOWN_OFFSET, 0, 233 UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 234 UVM_ADV_NORMAL, 0)) != 0) 235 panic("startup: cannot allocate VM for buffers"); 236 minaddr = (vaddr_t)buffers; 237 if ((bufpages / nbuf) >= btoc(MAXBSIZE)) { 238 /* don't want to alloc more physical mem than needed */ 239 bufpages = btoc(MAXBSIZE) * nbuf; 240 } 241 base = bufpages / nbuf; 242 residual = bufpages % nbuf; 243 for (i = 0; i < nbuf; i++) { 244 vsize_t curbufsize; 245 vaddr_t curbuf; 246 struct vm_page *pg; 247 248 /* 249 * Each buffer has MAXBSIZE bytes of VM space allocated. Of 250 * that MAXBSIZE space, we allocate and map (base+1) pages 251 * for the first "residual" buffers, and then we allocate 252 * "base" pages for the rest. 253 */ 254 curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 255 curbufsize = NBPG * ((i < residual) ? (base+1) : base); 256 257 while (curbufsize) { 258 pg = uvm_pagealloc(NULL, 0, NULL, 0); 259 if (pg == NULL) 260 panic("cpu_startup: not enough memory for " 261 "buffer cache"); 262 pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 263 VM_PROT_READ|VM_PROT_WRITE); 264 curbuf += PAGE_SIZE; 265 curbufsize -= PAGE_SIZE; 266 } 267 } 268 pmap_update(pmap_kernel()); 269 270 /* 271 * Allocate a submap for exec arguments. This map effectively 272 * limits the number of processes exec'ing at any time. 273 */ 274 exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 275 16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 276 277 /* 278 * Allocate a submap for physio 279 */ 280 phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 281 VM_PHYS_SIZE, 0, FALSE, NULL); 282 283 /* 284 * Finally, allocate mbuf cluster submap. 285 */ 286 mb_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 287 nmbclusters * mclbytes, VM_MAP_INTRSAFE, 288 FALSE, NULL); 289 290 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 291 printf("avail memory = %s\n", pbuf); 292 format_bytes(pbuf, sizeof(pbuf), bufpages * NBPG); 293 printf("using %u buffers containing %s of memory\n", nbuf, pbuf); 294 295 /* 296 * Allocate a virtual page (for use by /dev/mem) 297 * This page is handed to pmap_enter() therefore 298 * it has to be in the normal kernel VA range. 299 */ 300 vmmap = uvm_km_valloc_wait(kernel_map, NBPG); 301 302 /* 303 * Create the DVMA maps. 304 */ 305 dvma_init(); 306 307 /* 308 * Set up CPU-specific registers, cache, etc. 309 */ 310 initcpu(); 311 312 /* 313 * Set up buffers, so they can be used to read disk labels. 314 */ 315 bufinit(); 316 } 317 318 /* 319 * Set registers on exec. 320 */ 321 void 322 setregs(p, pack, stack) 323 struct proc *p; 324 struct exec_package *pack; 325 u_long stack; 326 { 327 struct trapframe *tf = (struct trapframe *)p->p_md.md_regs; 328 329 tf->tf_sr = PSL_USERSET; 330 tf->tf_pc = pack->ep_entry & ~1; 331 tf->tf_regs[D0] = 0; 332 tf->tf_regs[D1] = 0; 333 tf->tf_regs[D2] = 0; 334 tf->tf_regs[D3] = 0; 335 tf->tf_regs[D4] = 0; 336 tf->tf_regs[D5] = 0; 337 tf->tf_regs[D6] = 0; 338 tf->tf_regs[D7] = 0; 339 tf->tf_regs[A0] = 0; 340 tf->tf_regs[A1] = 0; 341 tf->tf_regs[A2] = (int)p->p_psstr; 342 tf->tf_regs[A3] = 0; 343 tf->tf_regs[A4] = 0; 344 tf->tf_regs[A5] = 0; 345 tf->tf_regs[A6] = 0; 346 tf->tf_regs[SP] = stack; 347 348 /* restore a null state frame */ 349 p->p_addr->u_pcb.pcb_fpregs.fpf_null = 0; 350 if (fputype) 351 m68881_restore(&p->p_addr->u_pcb.pcb_fpregs); 352 353 p->p_md.md_flags = 0; 354 } 355 356 /* 357 * Info for CTL_HW 358 */ 359 char machine[16] = MACHINE; /* from <machine/param.h> */ 360 char kernel_arch[16] = "sun3x"; /* XXX needs a sysctl node */ 361 char cpu_model[120]; 362 363 /* 364 * XXX - Should empirically estimate the divisor... 365 * Note that the value of delay_divisor is roughly 366 * 2048 / cpuclock (where cpuclock is in MHz). 367 */ 368 int delay_divisor = 62; /* assume the fastest (33 MHz) */ 369 370 void 371 identifycpu() 372 { 373 u_char machtype; 374 375 machtype = identity_prom.idp_machtype; 376 if ((machtype & IDM_ARCH_MASK) != IDM_ARCH_SUN3X) { 377 printf("Bad IDPROM arch!\n"); 378 sunmon_abort(); 379 } 380 381 cpu_machine_id = machtype; 382 switch (cpu_machine_id) { 383 384 case SUN3X_MACH_80: 385 cpu_string = "80"; /* Hydra */ 386 delay_divisor = 102; /* 20 MHz */ 387 cpu_has_vme = FALSE; 388 break; 389 390 case SUN3X_MACH_470: 391 cpu_string = "470"; /* Pegasus */ 392 delay_divisor = 62; /* 33 MHz */ 393 cpu_has_vme = TRUE; 394 break; 395 396 default: 397 printf("unknown sun3x model\n"); 398 sunmon_abort(); 399 } 400 401 /* Other stuff? (VAC, mc6888x version, etc.) */ 402 /* Note: miniroot cares about the kernel_arch part. */ 403 sprintf(cpu_model, "%s %s", kernel_arch, cpu_string); 404 405 printf("Model: %s\n", cpu_model); 406 } 407 408 /* 409 * machine dependent system variables. 410 */ 411 int 412 cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 413 int *name; 414 u_int namelen; 415 void *oldp; 416 size_t *oldlenp; 417 void *newp; 418 size_t newlen; 419 struct proc *p; 420 { 421 int error; 422 dev_t consdev; 423 424 /* all sysctl names at this level are terminal */ 425 if (namelen != 1) 426 return (ENOTDIR); /* overloaded */ 427 428 switch (name[0]) { 429 case CPU_CONSDEV: 430 if (cn_tab != NULL) 431 consdev = cn_tab->cn_dev; 432 else 433 consdev = NODEV; 434 error = sysctl_rdstruct(oldp, oldlenp, newp, 435 &consdev, sizeof consdev); 436 break; 437 438 #if 0 /* XXX - Not yet... */ 439 case CPU_ROOT_DEVICE: 440 error = sysctl_rdstring(oldp, oldlenp, newp, root_device); 441 break; 442 443 case CPU_BOOTED_KERNEL: 444 error = sysctl_rdstring(oldp, oldlenp, newp, booted_kernel); 445 break; 446 #endif 447 448 default: 449 error = EOPNOTSUPP; 450 } 451 return (error); 452 } 453 454 /* See: sig_machdep.c */ 455 456 /* 457 * Do a sync in preparation for a reboot. 458 * XXX - This could probably be common code. 459 * XXX - And now, most of it is in vfs_shutdown() 460 * XXX - Put waittime checks in there too? 461 */ 462 int waittime = -1; /* XXX - Who else looks at this? -gwr */ 463 static void 464 reboot_sync __P((void)) 465 { 466 467 /* Check waittime here to localize its use to this function. */ 468 if (waittime >= 0) 469 return; 470 waittime = 0; 471 vfs_shutdown(); 472 } 473 474 /* 475 * Common part of the BSD and SunOS reboot system calls. 476 */ 477 __dead void 478 cpu_reboot(howto, user_boot_string) 479 int howto; 480 char *user_boot_string; 481 { 482 /* Note: this string MUST be static! */ 483 static char bootstr[128]; 484 char *p; 485 486 /* If system is cold, just halt. (early panic?) */ 487 if (cold) 488 goto haltsys; 489 490 /* Un-blank the screen if appropriate. */ 491 cnpollc(1); 492 493 if ((howto & RB_NOSYNC) == 0) { 494 reboot_sync(); 495 /* 496 * If we've been adjusting the clock, the todr 497 * will be out of synch; adjust it now. 498 * 499 * XXX - However, if the kernel has been sitting in ddb, 500 * the time will be way off, so don't set the HW clock! 501 * XXX - Should do sanity check against HW clock. -gwr 502 */ 503 /* resettodr(); */ 504 } 505 506 /* Disable interrupts. */ 507 splhigh(); 508 509 /* Write out a crash dump if asked. */ 510 if (howto & RB_DUMP) 511 dumpsys(); 512 513 /* run any shutdown hooks */ 514 doshutdownhooks(); 515 516 if (howto & RB_HALT) { 517 haltsys: 518 printf("halted.\n"); 519 sunmon_halt(); 520 } 521 522 /* 523 * Automatic reboot. 524 */ 525 if (user_boot_string) 526 strncpy(bootstr, user_boot_string, sizeof(bootstr)); 527 else { 528 /* 529 * Build our own boot string with an empty 530 * boot device/file and (maybe) some flags. 531 * The PROM will supply the device/file name. 532 */ 533 p = bootstr; 534 *p = '\0'; 535 if (howto & (RB_KDB|RB_ASKNAME|RB_SINGLE)) { 536 /* Append the boot flags. */ 537 *p++ = ' '; 538 *p++ = '-'; 539 if (howto & RB_KDB) 540 *p++ = 'd'; 541 if (howto & RB_ASKNAME) 542 *p++ = 'a'; 543 if (howto & RB_SINGLE) 544 *p++ = 's'; 545 *p = '\0'; 546 } 547 } 548 printf("rebooting...\n"); 549 sunmon_reboot(bootstr); 550 for (;;) ; 551 /*NOTREACHED*/ 552 } 553 554 /* 555 * These variables are needed by /sbin/savecore 556 */ 557 u_int32_t dumpmag = 0x8fca0101; /* magic number */ 558 int dumpsize = 0; /* pages */ 559 long dumplo = 0; /* blocks */ 560 561 #define DUMP_EXTRA 1 /* CPU-dependent extra pages */ 562 563 /* 564 * This is called by main to set dumplo, dumpsize. 565 * Dumps always skip the first NBPG of disk space 566 * in case there might be a disk label stored there. 567 * If there is extra space, put dump at the end to 568 * reduce the chance that swapping trashes it. 569 */ 570 void 571 cpu_dumpconf() 572 { 573 const struct bdevsw *bdev; 574 int devblks; /* size of dump device in blocks */ 575 int dumpblks; /* size of dump image in blocks */ 576 int (*getsize)__P((dev_t)); 577 578 if (dumpdev == NODEV) 579 return; 580 581 bdev = bdevsw_lookup(dumpdev); 582 if (bdev == NULL) 583 panic("dumpconf: bad dumpdev=0x%x", dumpdev); 584 getsize = bdev->d_psize; 585 if (getsize == NULL) 586 return; 587 devblks = (*getsize)(dumpdev); 588 if (devblks <= ctod(1)) 589 return; 590 devblks &= ~(ctod(1) - 1); 591 592 /* 593 * Note: savecore expects dumpsize to be the 594 * number of pages AFTER the dump header. 595 */ 596 dumpsize = physmem; /* pages */ 597 598 /* Position dump image near end of space, page aligned. */ 599 dumpblks = ctod(physmem + DUMP_EXTRA); 600 dumplo = devblks - dumpblks; 601 602 /* If it does not fit, truncate it by moving dumplo. */ 603 /* Note: Must force signed comparison. */ 604 if (dumplo < ((long)ctod(1))) { 605 dumplo = ctod(1); 606 dumpsize = dtoc(devblks - dumplo) - DUMP_EXTRA; 607 } 608 } 609 610 /* Note: gdb looks for "dumppcb" in a kernel crash dump. */ 611 struct pcb dumppcb; 612 613 /* 614 * Write a crash dump. The format while in swap is: 615 * kcore_seg_t cpu_hdr; 616 * cpu_kcore_hdr_t cpu_data; 617 * padding (NBPG-sizeof(kcore_seg_t)) 618 * pagemap (2*NBPG) 619 * physical memory... 620 */ 621 void 622 dumpsys() 623 { 624 const struct bdevsw *dsw; 625 kcore_seg_t *kseg_p; 626 cpu_kcore_hdr_t *chdr_p; 627 struct sun3x_kcore_hdr *sh; 628 phys_ram_seg_t *crs_p; 629 char *vaddr; 630 paddr_t paddr; 631 int psize, todo, seg, segsz; 632 daddr_t blkno; 633 int error = 0; 634 635 if (dumpdev == NODEV) 636 return; 637 dsw = bdevsw_lookup(dumpdev); 638 if (dsw == NULL || dsw->d_psize == NULL) 639 return; 640 641 /* 642 * For dumps during autoconfiguration, 643 * if dump device has already configured... 644 */ 645 if (dumpsize == 0) 646 cpu_dumpconf(); 647 if (dumplo <= 0) { 648 printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 649 minor(dumpdev)); 650 return; 651 } 652 savectx(&dumppcb); 653 654 psize = (*(dsw->d_psize))(dumpdev); 655 if (psize == -1) { 656 printf("dump area unavailable\n"); 657 return; 658 } 659 660 printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 661 minor(dumpdev), dumplo); 662 663 /* 664 * Prepare the dump header 665 */ 666 blkno = dumplo; 667 todo = dumpsize; /* pages */ 668 vaddr = (char *)dumppage; 669 memset(vaddr, 0, NBPG); 670 671 /* Set pointers to all three parts. */ 672 kseg_p = (kcore_seg_t *)vaddr; 673 chdr_p = (cpu_kcore_hdr_t *)(kseg_p + 1); 674 sh = &chdr_p->un._sun3x; 675 676 /* Fill in kcore_seg_t part. */ 677 CORE_SETMAGIC(*kseg_p, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 678 kseg_p->c_size = (ctob(DUMP_EXTRA) - sizeof(*kseg_p)); 679 680 /* Fill in cpu_kcore_hdr_t part. */ 681 strncpy(chdr_p->name, kernel_arch, sizeof(chdr_p->name)); 682 chdr_p->page_size = NBPG; 683 chdr_p->kernbase = KERNBASE; 684 685 /* Fill in the sun3x_kcore_hdr part. */ 686 pmap_kcore_hdr(sh); 687 688 /* Write out the dump header. */ 689 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 690 if (error) 691 goto fail; 692 blkno += btodb(NBPG); 693 694 /* 695 * Now dump physical memory. Note that physical memory 696 * might NOT be congiguous, so do it by segments. 697 */ 698 699 vaddr = (char *)vmmap; /* Borrow /dev/mem VA */ 700 701 for (seg = 0; seg < SUN3X_NPHYS_RAM_SEGS; seg++) { 702 crs_p = &sh->ram_segs[seg]; 703 paddr = crs_p->start; 704 segsz = crs_p->size; 705 706 while (todo && (segsz > 0)) { 707 708 /* Print pages left after every 16. */ 709 if ((todo & 0xf) == 0) 710 printf("\r%4d", todo); 711 712 /* Make a temporary mapping for the page. */ 713 pmap_kenter_pa(vmmap, paddr | PMAP_NC, VM_PROT_READ); 714 pmap_update(pmap_kernel()); 715 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 716 pmap_kremove(vmmap, NBPG); 717 pmap_update(pmap_kernel()); 718 if (error) 719 goto fail; 720 paddr += NBPG; 721 segsz -= NBPG; 722 blkno += btodb(NBPG); 723 todo--; 724 } 725 } 726 printf("\rdump succeeded\n"); 727 return; 728 fail: 729 printf(" dump error=%d\n", error); 730 } 731 732 static void 733 initcpu() 734 { 735 /* XXX: Enable RAM parity/ECC checking? */ 736 /* XXX: parityenable(); */ 737 738 #ifdef HAVECACHE 739 cache_enable(); 740 #endif 741 } 742 743 /* straptrap() in trap.c */ 744 745 /* from hp300: badaddr() */ 746 /* peek_byte(), peek_word() moved to bus_subr.c */ 747 748 /* XXX: parityenable() ? */ 749 /* regdump() moved to regdump.c */ 750 751 /* 752 * cpu_exec_aout_makecmds(): 753 * cpu-dependent a.out format hook for execve(). 754 * 755 * Determine if the given exec package refers to something which we 756 * understand and, if so, set up the vmcmds for it. 757 */ 758 int 759 cpu_exec_aout_makecmds(p, epp) 760 struct proc *p; 761 struct exec_package *epp; 762 { 763 return ENOEXEC; 764 } 765