1 /* $NetBSD: machdep.c,v 1.123 2010/02/08 19:02:32 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. 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 * from: Utah Hdr: machdep.c 1.74 92/12/20 36 * from: @(#)machdep.c 8.10 (Berkeley) 4/20/94 37 */ 38 /* 39 * Copyright (c) 1988 University of Utah. 40 * 41 * This code is derived from software contributed to Berkeley by 42 * the Systems Programming Group of the University of Utah Computer 43 * Science Department. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed by the University of 56 * California, Berkeley and its contributors. 57 * 4. Neither the name of the University nor the names of its contributors 58 * may be used to endorse or promote products derived from this software 59 * without specific prior written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 63 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 64 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 65 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 66 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 67 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 68 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 69 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 70 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 71 * SUCH DAMAGE. 72 * 73 * from: Utah Hdr: machdep.c 1.74 92/12/20 74 * from: @(#)machdep.c 8.10 (Berkeley) 4/20/94 75 */ 76 77 #include <sys/cdefs.h> 78 __KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.123 2010/02/08 19:02:32 joerg Exp $"); 79 80 #include "opt_ddb.h" 81 #include "opt_kgdb.h" 82 #include "opt_modular.h" 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/kernel.h> 87 #include <sys/proc.h> 88 #include <sys/buf.h> 89 #include <sys/reboot.h> 90 #include <sys/conf.h> 91 #include <sys/file.h> 92 #include <sys/device.h> 93 #include <sys/malloc.h> 94 #include <sys/mbuf.h> 95 #include <sys/msgbuf.h> 96 #include <sys/ioctl.h> 97 #include <sys/tty.h> 98 #include <sys/mount.h> 99 #include <sys/exec.h> 100 #include <sys/exec_aout.h> /* for MID_* */ 101 #include <sys/core.h> 102 #include <sys/kcore.h> 103 #include <sys/vnode.h> 104 #include <sys/syscallargs.h> 105 #include <sys/ksyms.h> 106 #ifdef KGDB 107 #include <sys/kgdb.h> 108 #endif 109 110 #include <uvm/uvm_extern.h> 111 112 #include <sys/sysctl.h> 113 114 #include <dev/cons.h> 115 116 #include <machine/cpu.h> 117 #include <machine/dvma.h> 118 #include <machine/idprom.h> 119 #include <machine/kcore.h> 120 #include <machine/reg.h> 121 #include <machine/psl.h> 122 #include <machine/pte.h> 123 124 #if defined(DDB) 125 #include <machine/db_machdep.h> 126 #include <ddb/db_sym.h> 127 #include <ddb/db_extern.h> 128 #endif 129 130 #include <sun3/sun3/machdep.h> 131 132 #include "ksyms.h" 133 134 /* Defined in locore.s */ 135 extern char kernel_text[]; 136 /* Defined by the linker */ 137 extern char etext[]; 138 139 /* Our exported CPU info; we can have only one. */ 140 struct cpu_info cpu_info_store; 141 142 struct vm_map *phys_map = NULL; 143 144 int physmem; 145 int fputype; 146 void * msgbufaddr; 147 148 /* Virtual page frame for /dev/mem (see mem.c) */ 149 vaddr_t vmmap; 150 151 /* 152 * safepri is a safe priority for sleep to set for a spin-wait 153 * during autoconfiguration or after a panic. 154 */ 155 int safepri = PSL_LOWIPL; 156 157 u_char cpu_machine_id = 0; 158 const char *cpu_string = NULL; 159 int cpu_has_vme = 0; 160 int has_iocache = 0; 161 162 vaddr_t dumppage; 163 164 static void identifycpu(void); 165 static void initcpu(void); 166 167 /* 168 * Console initialization: called early on from main, 169 * before vm init or cpu_startup. This system is able 170 * to use the console for output immediately (via PROM) 171 * but can not use it for input until after this point. 172 */ 173 void 174 consinit(void) 175 { 176 177 /* 178 * Switch from the PROM console (output only) 179 * to our own console driver. 180 */ 181 cninit(); 182 183 #if NKSYMS || defined(DDB) || defined(MODULAR) 184 { 185 extern int nsym; 186 extern char *ssym, *esym; 187 188 ksyms_addsyms_elf(nsym, ssym, esym); 189 } 190 #endif /* DDB */ 191 192 /* 193 * Now that the console can do input as well as 194 * output, consider stopping for a debugger. 195 */ 196 if (boothowto & RB_KDB) { 197 #ifdef KGDB 198 /* XXX - Ask on console for kgdb_dev? */ 199 /* Note: this will just return if kgdb_dev==NODEV */ 200 kgdb_connect(1); 201 #else /* KGDB */ 202 /* Either DDB or no debugger (just PROM). */ 203 Debugger(); 204 #endif /* KGDB */ 205 } 206 } 207 208 /* 209 * cpu_startup: allocate memory for variable-sized tables, 210 * initialize CPU, and do autoconfiguration. 211 * 212 * This is called early in init_main.c:main(), after the 213 * kernel memory allocator is ready for use, but before 214 * the creation of processes 1,2, and mountroot, etc. 215 */ 216 void 217 cpu_startup(void) 218 { 219 char *v; 220 vaddr_t minaddr, maxaddr; 221 char pbuf[9]; 222 223 /* 224 * Initialize message buffer (for kernel printf). 225 * This is put in physical page zero so it will 226 * always be in the same place after a reboot. 227 * Its mapping was prepared in pmap_bootstrap(). 228 * Also, offset some to avoid PROM scribbles. 229 */ 230 v = (char *)KERNBASE; 231 msgbufaddr = v + MSGBUFOFF; 232 initmsgbuf(msgbufaddr, MSGBUFSIZE); 233 234 /* 235 * Good {morning,afternoon,evening,night}. 236 */ 237 printf("%s%s", copyright, version); 238 identifycpu(); 239 initfpu(); /* also prints FPU type */ 240 241 format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); 242 printf("total memory = %s\n", pbuf); 243 244 /* 245 * Get scratch page for dumpsys(). 246 */ 247 dumppage = uvm_km_alloc(kernel_map, PAGE_SIZE, 0, UVM_KMF_WIRED); 248 if (dumppage == 0) 249 panic("startup: alloc dumppage"); 250 251 minaddr = 0; 252 253 /* 254 * Allocate a submap for physio 255 */ 256 phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, 257 VM_PHYS_SIZE, 0, false, NULL); 258 259 format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); 260 printf("avail memory = %s\n", pbuf); 261 262 /* 263 * Allocate a virtual page (for use by /dev/mem) 264 * This page is handed to pmap_enter() therefore 265 * it has to be in the normal kernel VA range. 266 */ 267 vmmap = uvm_km_alloc(kernel_map, PAGE_SIZE, 0, 268 UVM_KMF_VAONLY | UVM_KMF_WAITVA); 269 270 /* 271 * Create the DVMA maps. 272 */ 273 dvma_init(); 274 275 /* 276 * Set up CPU-specific registers, cache, etc. 277 */ 278 initcpu(); 279 } 280 281 /* 282 * Set registers on exec. 283 */ 284 void 285 setregs(struct lwp *l, struct exec_package *pack, vaddr_t stack) 286 { 287 struct trapframe *tf = (struct trapframe *)l->l_md.md_regs; 288 struct pcb *pcb = lwp_getpcb(l); 289 290 tf->tf_sr = PSL_USERSET; 291 tf->tf_pc = pack->ep_entry & ~1; 292 tf->tf_regs[D0] = 0; 293 tf->tf_regs[D1] = 0; 294 tf->tf_regs[D2] = 0; 295 tf->tf_regs[D3] = 0; 296 tf->tf_regs[D4] = 0; 297 tf->tf_regs[D5] = 0; 298 tf->tf_regs[D6] = 0; 299 tf->tf_regs[D7] = 0; 300 tf->tf_regs[A0] = 0; 301 tf->tf_regs[A1] = 0; 302 tf->tf_regs[A2] = (int)l->l_proc->p_psstr; 303 tf->tf_regs[A3] = 0; 304 tf->tf_regs[A4] = 0; 305 tf->tf_regs[A5] = 0; 306 tf->tf_regs[A6] = 0; 307 tf->tf_regs[SP] = stack; 308 309 /* restore a null state frame */ 310 pcb->pcb_fpregs.fpf_null = 0; 311 if (fputype) 312 m68881_restore(&pcb->pcb_fpregs); 313 314 l->l_md.md_flags = 0; 315 } 316 317 /* 318 * Info for CTL_HW 319 */ 320 char machine[16] = MACHINE; /* from <machine/param.h> */ 321 char kernel_arch[16] = "sun3x"; /* XXX needs a sysctl node */ 322 char cpu_model[120]; 323 324 /* 325 * XXX - Should empirically estimate the divisor... 326 * Note that the value of delay_divisor is roughly 327 * 2048 / cpuclock (where cpuclock is in MHz). 328 */ 329 int delay_divisor = 62; /* assume the fastest (33 MHz) */ 330 331 void 332 identifycpu(void) 333 { 334 u_char machtype; 335 336 machtype = identity_prom.idp_machtype; 337 if ((machtype & IDM_ARCH_MASK) != IDM_ARCH_SUN3X) { 338 printf("Bad IDPROM arch!\n"); 339 sunmon_abort(); 340 } 341 342 cpu_machine_id = machtype; 343 switch (cpu_machine_id) { 344 345 case ID_SUN3X_80: 346 cpu_string = "80"; /* Hydra */ 347 delay_divisor = 102; /* 20 MHz */ 348 cpu_has_vme = false; 349 break; 350 351 case ID_SUN3X_470: 352 cpu_string = "470"; /* Pegasus */ 353 delay_divisor = 62; /* 33 MHz */ 354 cpu_has_vme = true; 355 break; 356 357 default: 358 printf("unknown sun3x model\n"); 359 sunmon_abort(); 360 } 361 362 /* Other stuff? (VAC, mc6888x version, etc.) */ 363 /* Note: miniroot cares about the kernel_arch part. */ 364 sprintf(cpu_model, "%s %s", kernel_arch, cpu_string); 365 366 printf("Model: %s\n", cpu_model); 367 } 368 369 /* 370 * machine dependent system variables. 371 */ 372 #if 0 /* XXX - Not yet... */ 373 static int 374 sysctl_machdep_root_device(SYSCTLFN_ARGS) 375 { 376 struct sysctlnode node = *rnode; 377 378 node.sysctl_data = some permutation on root_device; 379 node.sysctl_size = strlen(root_device) + 1; 380 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 381 } 382 383 static int 384 sysctl_machdep_booted_kernel(SYSCTLFN_ARGS) 385 { 386 struct sysctlnode node = *rnode; 387 388 node.sysctl_data = some permutation on booted_kernel; 389 node.sysctl_size = strlen(booted_kernel) + 1; 390 return (sysctl_lookup(SYSCTLFN_CALL(&node))); 391 } 392 #endif 393 394 SYSCTL_SETUP(sysctl_machdep_setup, "sysctl machdep subtree setup") 395 { 396 397 sysctl_createv(clog, 0, NULL, NULL, 398 CTLFLAG_PERMANENT, 399 CTLTYPE_NODE, "machdep", NULL, 400 NULL, 0, NULL, 0, 401 CTL_MACHDEP, CTL_EOL); 402 403 sysctl_createv(clog, 0, NULL, NULL, 404 CTLFLAG_PERMANENT, 405 CTLTYPE_STRUCT, "console_device", NULL, 406 sysctl_consdev, 0, NULL, sizeof(dev_t), 407 CTL_MACHDEP, CPU_CONSDEV, CTL_EOL); 408 #if 0 /* XXX - Not yet... */ 409 sysctl_createv(clog, 0, NULL, NULL, 410 CTLFLAG_PERMANENT, 411 CTLTYPE_STRING, "root_device", NULL, 412 sysctl_machdep_root_device, 0, NULL, 0, 413 CTL_MACHDEP, CPU_ROOT_DEVICE, CTL_EOL); 414 sysctl_createv(clog, 0, NULL, NULL, 415 CTLFLAG_PERMANENT, 416 CTLTYPE_STRING, "booted_kernel", NULL, 417 sysctl_machdep_booted_kernel, 0, NULL, 0, 418 CTL_MACHDEP, CPU_BOOTED_KERNEL, CTL_EOL); 419 #endif 420 } 421 422 /* See: sig_machdep.c */ 423 424 /* 425 * Do a sync in preparation for a reboot. 426 * XXX - This could probably be common code. 427 * XXX - And now, most of it is in vfs_shutdown() 428 * XXX - Put waittime checks in there too? 429 */ 430 int waittime = -1; /* XXX - Who else looks at this? -gwr */ 431 static void 432 reboot_sync(void) 433 { 434 435 /* Check waittime here to localize its use to this function. */ 436 if (waittime >= 0) 437 return; 438 waittime = 0; 439 vfs_shutdown(); 440 } 441 442 /* 443 * Common part of the BSD and SunOS reboot system calls. 444 */ 445 __dead void 446 cpu_reboot(int howto, char *user_boot_string) 447 { 448 /* Note: this string MUST be static! */ 449 static char bootstr[128]; 450 char *p; 451 452 /* If system is cold, just halt. (early panic?) */ 453 if (cold) 454 goto haltsys; 455 456 /* Un-blank the screen if appropriate. */ 457 cnpollc(1); 458 459 if ((howto & RB_NOSYNC) == 0) { 460 reboot_sync(); 461 /* 462 * If we've been adjusting the clock, the todr 463 * will be out of synch; adjust it now. 464 * 465 * XXX - However, if the kernel has been sitting in ddb, 466 * the time will be way off, so don't set the HW clock! 467 * XXX - Should do sanity check against HW clock. -gwr 468 */ 469 /* resettodr(); */ 470 } 471 472 /* Disable interrupts. */ 473 splhigh(); 474 475 /* Write out a crash dump if asked. */ 476 if (howto & RB_DUMP) 477 dumpsys(); 478 479 /* run any shutdown hooks */ 480 doshutdownhooks(); 481 482 pmf_system_shutdown(boothowto); 483 484 if (howto & RB_HALT) { 485 haltsys: 486 printf("halted.\n"); 487 sunmon_halt(); 488 } 489 490 /* 491 * Automatic reboot. 492 */ 493 if (user_boot_string) 494 strncpy(bootstr, user_boot_string, sizeof(bootstr)); 495 else { 496 /* 497 * Build our own boot string with an empty 498 * boot device/file and (maybe) some flags. 499 * The PROM will supply the device/file name. 500 */ 501 p = bootstr; 502 *p = '\0'; 503 if (howto & (RB_KDB|RB_ASKNAME|RB_SINGLE)) { 504 /* Append the boot flags. */ 505 *p++ = ' '; 506 *p++ = '-'; 507 if (howto & RB_KDB) 508 *p++ = 'd'; 509 if (howto & RB_ASKNAME) 510 *p++ = 'a'; 511 if (howto & RB_SINGLE) 512 *p++ = 's'; 513 *p = '\0'; 514 } 515 } 516 printf("rebooting...\n"); 517 sunmon_reboot(bootstr); 518 for (;;) ; 519 /*NOTREACHED*/ 520 } 521 522 /* 523 * These variables are needed by /sbin/savecore 524 */ 525 uint32_t dumpmag = 0x8fca0101; /* magic number */ 526 int dumpsize = 0; /* pages */ 527 long dumplo = 0; /* blocks */ 528 529 #define DUMP_EXTRA 1 /* CPU-dependent extra pages */ 530 531 /* 532 * This is called by main to set dumplo, dumpsize. 533 * Dumps always skip the first PAGE_SIZE of disk space 534 * in case there might be a disk label stored there. 535 * If there is extra space, put dump at the end to 536 * reduce the chance that swapping trashes it. 537 */ 538 void 539 cpu_dumpconf(void) 540 { 541 const struct bdevsw *bdev; 542 int devblks; /* size of dump device in blocks */ 543 int dumpblks; /* size of dump image in blocks */ 544 int (*getsize)(dev_t); 545 546 if (dumpdev == NODEV) 547 return; 548 549 bdev = bdevsw_lookup(dumpdev); 550 if (bdev == NULL) { 551 dumpdev = NODEV; 552 return; 553 } 554 getsize = bdev->d_psize; 555 if (getsize == NULL) 556 return; 557 devblks = (*getsize)(dumpdev); 558 if (devblks <= ctod(1)) 559 return; 560 devblks &= ~(ctod(1) - 1); 561 562 /* 563 * Note: savecore expects dumpsize to be the 564 * number of pages AFTER the dump header. 565 */ 566 dumpsize = physmem; /* pages */ 567 568 /* Position dump image near end of space, page aligned. */ 569 dumpblks = ctod(physmem + DUMP_EXTRA); 570 dumplo = devblks - dumpblks; 571 572 /* If it does not fit, truncate it by moving dumplo. */ 573 /* Note: Must force signed comparison. */ 574 if (dumplo < ((long)ctod(1))) { 575 dumplo = ctod(1); 576 dumpsize = dtoc(devblks - dumplo) - DUMP_EXTRA; 577 } 578 } 579 580 /* Note: gdb looks for "dumppcb" in a kernel crash dump. */ 581 struct pcb dumppcb; 582 583 /* 584 * Write a crash dump. The format while in swap is: 585 * kcore_seg_t cpu_hdr; 586 * cpu_kcore_hdr_t cpu_data; 587 * padding (PAGE_SIZE-sizeof(kcore_seg_t)) 588 * pagemap (2*PAGE_SIZE) 589 * physical memory... 590 */ 591 void 592 dumpsys(void) 593 { 594 const struct bdevsw *dsw; 595 kcore_seg_t *kseg_p; 596 cpu_kcore_hdr_t *chdr_p; 597 struct sun3x_kcore_hdr *sh; 598 phys_ram_seg_t *crs_p; 599 char *vaddr; 600 paddr_t paddr; 601 int psize, todo, seg, segsz; 602 daddr_t blkno; 603 int error = 0; 604 605 if (dumpdev == NODEV) 606 return; 607 dsw = bdevsw_lookup(dumpdev); 608 if (dsw == NULL || dsw->d_psize == NULL) 609 return; 610 611 /* 612 * For dumps during autoconfiguration, 613 * if dump device has already configured... 614 */ 615 if (dumpsize == 0) 616 cpu_dumpconf(); 617 if (dumplo <= 0) { 618 printf("\ndump to dev %u,%u not possible\n", 619 major(dumpdev), minor(dumpdev)); 620 return; 621 } 622 savectx(&dumppcb); 623 624 psize = (*(dsw->d_psize))(dumpdev); 625 if (psize == -1) { 626 printf("dump area unavailable\n"); 627 return; 628 } 629 630 printf("\ndumping to dev %u,%u offset %ld\n", 631 major(dumpdev), minor(dumpdev), dumplo); 632 633 /* 634 * Prepare the dump header 635 */ 636 blkno = dumplo; 637 todo = dumpsize; /* pages */ 638 vaddr = (char *)dumppage; 639 memset(vaddr, 0, PAGE_SIZE); 640 641 /* Set pointers to all three parts. */ 642 kseg_p = (kcore_seg_t *)vaddr; 643 chdr_p = (cpu_kcore_hdr_t *)(kseg_p + 1); 644 sh = &chdr_p->un._sun3x; 645 646 /* Fill in kcore_seg_t part. */ 647 CORE_SETMAGIC(*kseg_p, KCORE_MAGIC, MID_MACHINE, CORE_CPU); 648 kseg_p->c_size = (ctob(DUMP_EXTRA) - sizeof(*kseg_p)); 649 650 /* Fill in cpu_kcore_hdr_t part. */ 651 strncpy(chdr_p->name, kernel_arch, sizeof(chdr_p->name)); 652 chdr_p->page_size = PAGE_SIZE; 653 chdr_p->kernbase = KERNBASE; 654 655 /* Fill in the sun3x_kcore_hdr part. */ 656 pmap_kcore_hdr(sh); 657 658 /* Write out the dump header. */ 659 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, PAGE_SIZE); 660 if (error) 661 goto fail; 662 blkno += btodb(PAGE_SIZE); 663 664 /* 665 * Now dump physical memory. Note that physical memory 666 * might NOT be congiguous, so do it by segments. 667 */ 668 669 vaddr = (char *)vmmap; /* Borrow /dev/mem VA */ 670 671 for (seg = 0; seg < SUN3X_NPHYS_RAM_SEGS; seg++) { 672 crs_p = &sh->ram_segs[seg]; 673 paddr = crs_p->start; 674 segsz = crs_p->size; 675 676 while (todo && (segsz > 0)) { 677 678 /* Print pages left after every 16. */ 679 if ((todo & 0xf) == 0) 680 printf_nolog("\r%4d", todo); 681 682 /* Make a temporary mapping for the page. */ 683 pmap_kenter_pa(vmmap, paddr | PMAP_NC, VM_PROT_READ, 0); 684 pmap_update(pmap_kernel()); 685 error = (*dsw->d_dump)(dumpdev, blkno, vaddr, 686 PAGE_SIZE); 687 pmap_kremove(vmmap, PAGE_SIZE); 688 pmap_update(pmap_kernel()); 689 if (error) 690 goto fail; 691 paddr += PAGE_SIZE; 692 segsz -= PAGE_SIZE; 693 blkno += btodb(PAGE_SIZE); 694 todo--; 695 } 696 } 697 printf("\rdump succeeded\n"); 698 return; 699 fail: 700 printf(" dump error=%d\n", error); 701 } 702 703 static void 704 initcpu(void) 705 { 706 /* XXX: Enable RAM parity/ECC checking? */ 707 /* XXX: parityenable(); */ 708 709 #ifdef HAVECACHE 710 cache_enable(); 711 #endif 712 } 713 714 /* straptrap() in trap.c */ 715 716 /* from hp300: badaddr() */ 717 /* peek_byte(), peek_word() moved to bus_subr.c */ 718 719 /* XXX: parityenable() ? */ 720 /* regdump() moved to regdump.c */ 721 722 /* 723 * cpu_exec_aout_makecmds(): 724 * CPU-dependent a.out format hook for execve(). 725 * 726 * Determine if the given exec package refers to something which we 727 * understand and, if so, set up the vmcmds for it. 728 */ 729 int 730 cpu_exec_aout_makecmds(struct lwp *l, struct exec_package *epp) 731 { 732 return ENOEXEC; 733 } 734