1 /* $NetBSD: machdep.c,v 1.79 2002/05/18 06:59:12 lukem 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/map.h> 51 #include <sys/proc.h> 52 #include <sys/buf.h> 53 #include <sys/reboot.h> 54 #include <sys/conf.h> 55 #include <sys/file.h> 56 #include <sys/clist.h> 57 #include <sys/device.h> 58 #include <sys/malloc.h> 59 #include <sys/mbuf.h> 60 #include <sys/msgbuf.h> 61 #include <sys/ioctl.h> 62 #include <sys/tty.h> 63 #include <sys/mount.h> 64 #include <sys/user.h> 65 #include <sys/exec.h> 66 #include <sys/core.h> 67 #include <sys/kcore.h> 68 #include <sys/vnode.h> 69 #include <sys/syscallargs.h> 70 #ifdef KGDB 71 #include <sys/kgdb.h> 72 #endif 73 74 #include <uvm/uvm_extern.h> 75 76 #include <sys/sysctl.h> 77 78 #include <dev/cons.h> 79 80 #include <machine/cpu.h> 81 #include <machine/dvma.h> 82 #include <machine/idprom.h> 83 #include <machine/kcore.h> 84 #include <machine/reg.h> 85 #include <machine/psl.h> 86 #include <machine/pte.h> 87 88 #if defined(DDB) 89 #include <machine/db_machdep.h> 90 #include <ddb/db_sym.h> 91 #include <ddb/db_extern.h> 92 #endif 93 94 #include <sun3/sun3/machdep.h> 95 96 /* Defined in locore.s */ 97 extern char kernel_text[]; 98 /* Defined by the linker */ 99 extern char etext[]; 100 101 /* Our exported CPU info; we can have only one. */ 102 struct cpu_info cpu_info_store; 103 104 struct vm_map *exec_map = NULL; 105 struct vm_map *mb_map = NULL; 106 struct vm_map *phys_map = NULL; 107 108 int physmem; 109 int fputype; 110 caddr_t msgbufaddr; 111 112 /* Virtual page frame for /dev/mem (see mem.c) */ 113 vaddr_t vmmap; 114 115 union sun3sir sun3sir; 116 117 /* 118 * safepri is a safe priority for sleep to set for a spin-wait 119 * during autoconfiguration or after a panic. 120 */ 121 int safepri = PSL_LOWIPL; 122 123 u_char cpu_machine_id = 0; 124 char *cpu_string = NULL; 125 int cpu_has_vme = 0; 126 int has_iocache = 0; 127 128 vaddr_t dumppage; 129 130 static void identifycpu __P((void)); 131 static void initcpu __P((void)); 132 133 /* 134 * Console initialization: called early on from main, 135 * before vm init or cpu_startup. This system is able 136 * to use the console for output immediately (via PROM) 137 * but can not use it for input until after this point. 138 */ 139 void 140 consinit() 141 { 142 143 /* 144 * Switch from the PROM console (output only) 145 * to our own console driver. 146 */ 147 cninit(); 148 149 #ifdef DDB 150 { 151 extern int nsym; 152 extern char *ssym, *esym; 153 154 ddb_init(nsym, ssym, esym); 155 } 156 #endif /* DDB */ 157 158 /* 159 * Now that the console can do input as well as 160 * output, consider stopping for a debugger. 161 */ 162 if (boothowto & RB_KDB) { 163 #ifdef KGDB 164 /* XXX - Ask on console for kgdb_dev? */ 165 /* Note: this will just return if kgdb_dev==NODEV */ 166 kgdb_connect(1); 167 #else /* KGDB */ 168 /* Either DDB or no debugger (just PROM). */ 169 Debugger(); 170 #endif /* KGDB */ 171 } 172 } 173 174 /* 175 * cpu_startup: allocate memory for variable-sized tables, 176 * initialize cpu, and do autoconfiguration. 177 * 178 * This is called early in init_main.c:main(), after the 179 * kernel memory allocator is ready for use, but before 180 * the creation of processes 1,2, and mountroot, etc. 181 */ 182 void 183 cpu_startup() 184 { 185 caddr_t v; 186 int sz, i; 187 vsize_t size; 188 int base, residual; 189 vaddr_t minaddr, maxaddr; 190 char pbuf[9]; 191 192 /* 193 * Initialize message buffer (for kernel printf). 194 * This is put in physical page zero so it will 195 * always be in the same place after a reboot. 196 * Its mapping was prepared in pmap_bootstrap(). 197 * Also, offset some to avoid PROM scribbles. 198 */ 199 v = (caddr_t) KERNBASE; 200 msgbufaddr = (caddr_t)(v + MSGBUFOFF); 201 initmsgbuf(msgbufaddr, MSGBUFSIZE); 202 203 /* 204 * Good {morning,afternoon,evening,night}. 205 */ 206 printf(version); 207 identifycpu(); 208 initfpu(); /* also prints FPU type */ 209 210 format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); 211 printf("total memory = %s\n", pbuf); 212 213 /* 214 * Get scratch page for dumpsys(). 215 */ 216 if ((dumppage = uvm_km_alloc(kernel_map, NBPG)) == 0) 217 panic("startup: alloc dumppage"); 218 219 /* 220 * Find out how much space we need, allocate it, 221 * and then give everything true virtual addresses. 222 */ 223 sz = (int)allocsys(NULL, NULL); 224 if ((v = (caddr_t)uvm_km_alloc(kernel_map, round_page(sz))) == 0) 225 panic("startup: no room for tables"); 226 if (allocsys(v, NULL) - v != sz) 227 panic("startup: table size inconsistency"); 228 229 /* 230 * Now allocate buffers proper. They are different than the above 231 * in that they usually occupy more virtual memory than physical. 232 */ 233 size = MAXBSIZE * nbuf; 234 if (uvm_map(kernel_map, (vaddr_t *) &buffers, round_page(size), 235 NULL, UVM_UNKNOWN_OFFSET, 0, 236 UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, 237 UVM_ADV_NORMAL, 0)) != 0) 238 panic("startup: cannot allocate VM for buffers"); 239 minaddr = (vaddr_t)buffers; 240 if ((bufpages / nbuf) >= btoc(MAXBSIZE)) { 241 /* don't want to alloc more physical mem than needed */ 242 bufpages = btoc(MAXBSIZE) * nbuf; 243 } 244 base = bufpages / nbuf; 245 residual = bufpages % nbuf; 246 for (i = 0; i < nbuf; i++) { 247 vsize_t curbufsize; 248 vaddr_t curbuf; 249 struct vm_page *pg; 250 251 /* 252 * Each buffer has MAXBSIZE bytes of VM space allocated. Of 253 * that MAXBSIZE space, we allocate and map (base+1) pages 254 * for the first "residual" buffers, and then we allocate 255 * "base" pages for the rest. 256 */ 257 curbuf = (vaddr_t) buffers + (i * MAXBSIZE); 258 curbufsize = NBPG * ((i < residual) ? (base+1) : base); 259 260 while (curbufsize) { 261 pg = uvm_pagealloc(NULL, 0, NULL, 0); 262 if (pg == NULL) 263 panic("cpu_startup: not enough memory for " 264 "buffer cache"); 265 pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), 266 VM_PROT_READ|VM_PROT_WRITE); 267 curbuf += PAGE_SIZE; 268 curbufsize -= PAGE_SIZE; 269 } 270 } 271 pmap_update(pmap_kernel()); 272 273 /* 274 * Allocate a submap for exec arguments. This map effectively 275 * limits the number of processes exec'ing at any time. 276 */ 277 exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 278 16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); 279 280 /* 281 * We don't use a submap for physio, and use a separate map 282 * for DVMA allocations. Our vmapbuf just maps pages into 283 * the kernel map (any kernel mapping is OK) and then the 284 * device drivers clone the kernel mappings into DVMA space. 285 */ 286 287 /* 288 * Finally, allocate mbuf cluster submap. 289 */ 290 mb_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 291 nmbclusters * mclbytes, VM_MAP_INTRSAFE, 292 FALSE, NULL); 293 294 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 295 printf("avail memory = %s\n", pbuf); 296 format_bytes(pbuf, sizeof(pbuf), bufpages * NBPG); 297 printf("using %d buffers containing %s of memory\n", nbuf, pbuf); 298 299 /* 300 * Allocate a virtual page (for use by /dev/mem) 301 * This page is handed to pmap_enter() therefore 302 * it has to be in the normal kernel VA range. 303 */ 304 vmmap = uvm_km_valloc_wait(kernel_map, NBPG); 305 306 /* 307 * Create the DVMA maps. 308 */ 309 dvma_init(); 310 311 /* 312 * Set up CPU-specific registers, cache, etc. 313 */ 314 initcpu(); 315 316 /* 317 * Set up buffers, so they can be used to read disk labels. 318 */ 319 bufinit(); 320 } 321 322 /* 323 * Set registers on exec. 324 */ 325 void 326 setregs(p, pack, stack) 327 struct proc *p; 328 struct exec_package *pack; 329 u_long stack; 330 { 331 struct trapframe *tf = (struct trapframe *)p->p_md.md_regs; 332 333 tf->tf_sr = PSL_USERSET; 334 tf->tf_pc = pack->ep_entry & ~1; 335 tf->tf_regs[D0] = 0; 336 tf->tf_regs[D1] = 0; 337 tf->tf_regs[D2] = 0; 338 tf->tf_regs[D3] = 0; 339 tf->tf_regs[D4] = 0; 340 tf->tf_regs[D5] = 0; 341 tf->tf_regs[D6] = 0; 342 tf->tf_regs[D7] = 0; 343 tf->tf_regs[A0] = 0; 344 tf->tf_regs[A1] = 0; 345 tf->tf_regs[A2] = (int)p->p_psstr; 346 tf->tf_regs[A3] = 0; 347 tf->tf_regs[A4] = 0; 348 tf->tf_regs[A5] = 0; 349 tf->tf_regs[A6] = 0; 350 tf->tf_regs[SP] = stack; 351 352 /* restore a null state frame */ 353 p->p_addr->u_pcb.pcb_fpregs.fpf_null = 0; 354 if (fputype) 355 m68881_restore(&p->p_addr->u_pcb.pcb_fpregs); 356 357 p->p_md.md_flags = 0; 358 } 359 360 /* 361 * Info for CTL_HW 362 */ 363 char machine[16] = MACHINE; /* from <machine/param.h> */ 364 char kernel_arch[16] = "sun3x"; /* XXX needs a sysctl node */ 365 char cpu_model[120]; 366 367 /* 368 * XXX - Should empirically estimate the divisor... 369 * Note that the value of delay_divisor is roughly 370 * 2048 / cpuclock (where cpuclock is in MHz). 371 */ 372 int delay_divisor = 62; /* assume the fastest (33 MHz) */ 373 374 void 375 identifycpu() 376 { 377 u_char machtype; 378 379 machtype = identity_prom.idp_machtype; 380 if ((machtype & IDM_ARCH_MASK) != IDM_ARCH_SUN3X) { 381 printf("Bad IDPROM arch!\n"); 382 sunmon_abort(); 383 } 384 385 cpu_machine_id = machtype; 386 switch (cpu_machine_id) { 387 388 case SUN3X_MACH_80: 389 cpu_string = "80"; /* Hydra */ 390 delay_divisor = 102; /* 20 MHz */ 391 cpu_has_vme = FALSE; 392 break; 393 394 case SUN3X_MACH_470: 395 cpu_string = "470"; /* Pegasus */ 396 delay_divisor = 62; /* 33 MHz */ 397 cpu_has_vme = TRUE; 398 break; 399 400 default: 401 printf("unknown sun3x model\n"); 402 sunmon_abort(); 403 } 404 405 /* Other stuff? (VAC, mc6888x version, etc.) */ 406 /* Note: miniroot cares about the kernel_arch part. */ 407 sprintf(cpu_model, "%s %s", kernel_arch, cpu_string); 408 409 printf("Model: %s\n", cpu_model); 410 } 411 412 /* 413 * machine dependent system variables. 414 */ 415 int 416 cpu_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 417 int *name; 418 u_int namelen; 419 void *oldp; 420 size_t *oldlenp; 421 void *newp; 422 size_t newlen; 423 struct proc *p; 424 { 425 int error; 426 dev_t consdev; 427 428 /* all sysctl names at this level are terminal */ 429 if (namelen != 1) 430 return (ENOTDIR); /* overloaded */ 431 432 switch (name[0]) { 433 case CPU_CONSDEV: 434 if (cn_tab != NULL) 435 consdev = cn_tab->cn_dev; 436 else 437 consdev = NODEV; 438 error = sysctl_rdstruct(oldp, oldlenp, newp, 439 &consdev, sizeof consdev); 440 break; 441 442 #if 0 /* XXX - Not yet... */ 443 case CPU_ROOT_DEVICE: 444 error = sysctl_rdstring(oldp, oldlenp, newp, root_device); 445 break; 446 447 case CPU_BOOTED_KERNEL: 448 error = sysctl_rdstring(oldp, oldlenp, newp, booted_kernel); 449 break; 450 #endif 451 452 default: 453 error = EOPNOTSUPP; 454 } 455 return (error); 456 } 457 458 /* See: sig_machdep.c */ 459 460 /* 461 * Do a sync in preparation for a reboot. 462 * XXX - This could probably be common code. 463 * XXX - And now, most of it is in vfs_shutdown() 464 * XXX - Put waittime checks in there too? 465 */ 466 int waittime = -1; /* XXX - Who else looks at this? -gwr */ 467 static void 468 reboot_sync __P((void)) 469 { 470 471 /* Check waittime here to localize its use to this function. */ 472 if (waittime >= 0) 473 return; 474 waittime = 0; 475 vfs_shutdown(); 476 } 477 478 /* 479 * Common part of the BSD and SunOS reboot system calls. 480 */ 481 __dead void 482 cpu_reboot(howto, user_boot_string) 483 int howto; 484 char *user_boot_string; 485 { 486 /* Note: this string MUST be static! */ 487 static char bootstr[128]; 488 char *p; 489 490 /* If system is cold, just halt. (early panic?) */ 491 if (cold) 492 goto haltsys; 493 494 /* Un-blank the screen if appropriate. */ 495 cnpollc(1); 496 497 if ((howto & RB_NOSYNC) == 0) { 498 reboot_sync(); 499 /* 500 * If we've been adjusting the clock, the todr 501 * will be out of synch; adjust it now. 502 * 503 * XXX - However, if the kernel has been sitting in ddb, 504 * the time will be way off, so don't set the HW clock! 505 * XXX - Should do sanity check against HW clock. -gwr 506 */ 507 /* resettodr(); */ 508 } 509 510 /* Disable interrupts. */ 511 splhigh(); 512 513 /* Write out a crash dump if asked. */ 514 if (howto & RB_DUMP) 515 dumpsys(); 516 517 /* run any shutdown hooks */ 518 doshutdownhooks(); 519 520 if (howto & RB_HALT) { 521 haltsys: 522 printf("halted.\n"); 523 sunmon_halt(); 524 } 525 526 /* 527 * Automatic reboot. 528 */ 529 if (user_boot_string) 530 strncpy(bootstr, user_boot_string, sizeof(bootstr)); 531 else { 532 /* 533 * Build our own boot string with an empty 534 * boot device/file and (maybe) some flags. 535 * The PROM will supply the device/file name. 536 */ 537 p = bootstr; 538 *p = '\0'; 539 if (howto & (RB_KDB|RB_ASKNAME|RB_SINGLE)) { 540 /* Append the boot flags. */ 541 *p++ = ' '; 542 *p++ = '-'; 543 if (howto & RB_KDB) 544 *p++ = 'd'; 545 if (howto & RB_ASKNAME) 546 *p++ = 'a'; 547 if (howto & RB_SINGLE) 548 *p++ = 's'; 549 *p = '\0'; 550 } 551 } 552 printf("rebooting...\n"); 553 sunmon_reboot(bootstr); 554 for (;;) ; 555 /*NOTREACHED*/ 556 } 557 558 /* 559 * These variables are needed by /sbin/savecore 560 */ 561 u_int32_t dumpmag = 0x8fca0101; /* magic number */ 562 int dumpsize = 0; /* pages */ 563 long dumplo = 0; /* blocks */ 564 565 #define DUMP_EXTRA 1 /* CPU-dependent extra pages */ 566 567 /* 568 * This is called by main to set dumplo, dumpsize. 569 * Dumps always skip the first NBPG of disk space 570 * in case there might be a disk label stored there. 571 * If there is extra space, put dump at the end to 572 * reduce the chance that swapping trashes it. 573 */ 574 void 575 cpu_dumpconf() 576 { 577 int devblks; /* size of dump device in blocks */ 578 int dumpblks; /* size of dump image in blocks */ 579 int maj; 580 int (*getsize)__P((dev_t)); 581 582 if (dumpdev == NODEV) 583 return; 584 585 maj = major(dumpdev); 586 if (maj < 0 || maj >= nblkdev) 587 panic("dumpconf: bad dumpdev=0x%x", dumpdev); 588 getsize = bdevsw[maj].d_psize; 589 if (getsize == NULL) 590 return; 591 devblks = (*getsize)(dumpdev); 592 if (devblks <= ctod(1)) 593 return; 594 devblks &= ~(ctod(1) - 1); 595 596 /* 597 * Note: savecore expects dumpsize to be the 598 * number of pages AFTER the dump header. 599 */ 600 dumpsize = physmem; /* pages */ 601 602 /* Position dump image near end of space, page aligned. */ 603 dumpblks = ctod(physmem + DUMP_EXTRA); 604 dumplo = devblks - dumpblks; 605 606 /* If it does not fit, truncate it by moving dumplo. */ 607 /* Note: Must force signed comparison. */ 608 if (dumplo < ((long)ctod(1))) { 609 dumplo = ctod(1); 610 dumpsize = dtoc(devblks - dumplo) - DUMP_EXTRA; 611 } 612 } 613 614 /* Note: gdb looks for "dumppcb" in a kernel crash dump. */ 615 struct pcb dumppcb; 616 617 /* 618 * Write a crash dump. The format while in swap is: 619 * kcore_seg_t cpu_hdr; 620 * cpu_kcore_hdr_t cpu_data; 621 * padding (NBPG-sizeof(kcore_seg_t)) 622 * pagemap (2*NBPG) 623 * physical memory... 624 */ 625 void 626 dumpsys() 627 { 628 struct bdevsw *dsw; 629 kcore_seg_t *kseg_p; 630 cpu_kcore_hdr_t *chdr_p; 631 struct sun3x_kcore_hdr *sh; 632 phys_ram_seg_t *crs_p; 633 char *vaddr; 634 paddr_t paddr; 635 int psize, todo, seg, segsz; 636 daddr_t blkno; 637 int error = 0; 638 639 if (dumpdev == NODEV) 640 return; 641 642 /* 643 * For dumps during autoconfiguration, 644 * if dump device has already configured... 645 */ 646 if (dumpsize == 0) 647 cpu_dumpconf(); 648 if (dumplo <= 0) { 649 printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 650 minor(dumpdev)); 651 return; 652 } 653 savectx(&dumppcb); 654 655 dsw = &bdevsw[major(dumpdev)]; 656 psize = (*(dsw->d_psize))(dumpdev); 657 if (psize == -1) { 658 printf("dump area unavailable\n"); 659 return; 660 } 661 662 printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 663 minor(dumpdev), dumplo); 664 665 /* 666 * Prepare the dump header 667 */ 668 blkno = dumplo; 669 todo = dumpsize; /* pages */ 670 vaddr = (char *)dumppage; 671 memset(vaddr, 0, NBPG); 672 673 /* Set pointers to all three parts. */ 674 kseg_p = (kcore_seg_t *)vaddr; 675 chdr_p = (cpu_kcore_hdr_t *)(kseg_p + 1); 676 sh = &chdr_p->un._sun3x; 677 678 /* Fill in kcore_seg_t part. */ 679 CORE_SETMAGIC(*kseg_p, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 680 kseg_p->c_size = (ctob(DUMP_EXTRA) - sizeof(*kseg_p)); 681 682 /* Fill in cpu_kcore_hdr_t part. */ 683 strncpy(chdr_p->name, kernel_arch, sizeof(chdr_p->name)); 684 chdr_p->page_size = NBPG; 685 chdr_p->kernbase = KERNBASE; 686 687 /* Fill in the sun3x_kcore_hdr part. */ 688 pmap_kcore_hdr(sh); 689 690 /* Write out the dump header. */ 691 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 692 if (error) 693 goto fail; 694 blkno += btodb(NBPG); 695 696 /* 697 * Now dump physical memory. Note that physical memory 698 * might NOT be congiguous, so do it by segments. 699 */ 700 701 vaddr = (char *)vmmap; /* Borrow /dev/mem VA */ 702 703 for (seg = 0; seg < SUN3X_NPHYS_RAM_SEGS; seg++) { 704 crs_p = &sh->ram_segs[seg]; 705 paddr = crs_p->start; 706 segsz = crs_p->size; 707 708 while (todo && (segsz > 0)) { 709 710 /* Print pages left after every 16. */ 711 if ((todo & 0xf) == 0) 712 printf("\r%4d", todo); 713 714 /* Make a temporary mapping for the page. */ 715 pmap_kenter_pa(vmmap, paddr | PMAP_NC, VM_PROT_READ); 716 pmap_update(pmap_kernel()); 717 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, NBPG); 718 pmap_kremove(vmmap, NBPG); 719 pmap_update(pmap_kernel()); 720 if (error) 721 goto fail; 722 paddr += NBPG; 723 segsz -= NBPG; 724 blkno += btodb(NBPG); 725 todo--; 726 } 727 } 728 printf("\rdump succeeded\n"); 729 return; 730 fail: 731 printf(" dump error=%d\n", error); 732 } 733 734 static void 735 initcpu() 736 { 737 /* XXX: Enable RAM parity/ECC checking? */ 738 /* XXX: parityenable(); */ 739 740 #ifdef HAVECACHE 741 cache_enable(); 742 #endif 743 } 744 745 /* straptrap() in trap.c */ 746 747 /* from hp300: badaddr() */ 748 /* peek_byte(), peek_word() moved to bus_subr.c */ 749 750 /* XXX: parityenable() ? */ 751 /* regdump() moved to regdump.c */ 752 753 /* 754 * cpu_exec_aout_makecmds(): 755 * cpu-dependent a.out format hook for execve(). 756 * 757 * Determine if the given exec package refers to something which we 758 * understand and, if so, set up the vmcmds for it. 759 */ 760 int 761 cpu_exec_aout_makecmds(p, epp) 762 struct proc *p; 763 struct exec_package *epp; 764 { 765 return ENOEXEC; 766 } 767