console.c revision 8015:37634fc80b3c
1/* 2 * Copyright (c) 2003, 2004 3 * The Regents of The University of Michigan 4 * All Rights Reserved 5 * 6 * This code is part of the M5 simulator, developed by Nathan Binkert, 7 * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions 8 * from Ron Dreslinski, Dave Greene, Lisa Hsu, Ali Saidi, and Andrew 9 * Schultz. 10 * 11 * Permission is granted to use, copy, create derivative works and 12 * redistribute this software and such derivative works for any purpose, 13 * so long as the copyright notice above, this grant of permission, and 14 * the disclaimer below appear in all copies made; and so long as the 15 * name of The University of Michigan is not used in any advertising or 16 * publicity pertaining to the use or distribution of this software 17 * without specific, written prior authorization. 18 * 19 * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE 20 * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND WITHOUT 21 * WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER EXPRESS OR 22 * IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REGENTS OF 24 * THE UNIVERSITY OF MICHIGAN SHALL NOT BE LIABLE FOR ANY DAMAGES, 25 * INCLUDING DIRECT, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL 26 * DAMAGES, WITH RESPECT TO ANY CLAIM ARISING OUT OF OR IN CONNECTION 27 * WITH THE USE OF THE SOFTWARE, EVEN IF IT HAS BEEN OR IS HEREAFTER 28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 29 */ 30 31/* 32 * Copyright 1993 Hewlett-Packard Development Company, L.P. 33 * 34 * Permission is hereby granted, free of charge, to any person 35 * obtaining a copy of this software and associated documentation 36 * files (the "Software"), to deal in the Software without 37 * restriction, including without limitation the rights to use, copy, 38 * modify, merge, publish, distribute, sublicense, and/or sell copies 39 * of the Software, and to permit persons to whom the Software is 40 * furnished to do so, subject to the following conditions: 41 * 42 * The above copyright notice and this permission notice shall be 43 * included in all copies or substantial portions of the Software. 44 * 45 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 46 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 47 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 48 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 49 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 50 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 51 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 52 * SOFTWARE. 53 */ 54 55/* ****************************************** 56 * M5 Console 57 * ******************************************/ 58 59#include <linux/stddef.h> 60#include <sys/types.h> 61 62#define CONSOLE 63#include "alpha_access.h" 64#include "cserve.h" 65#include "rpb.h" 66 67#define CONS_INT_TX 0x01 /* interrupt enable / state bits */ 68#define CONS_INT_RX 0x02 69 70#define PAGE_SIZE (8192) 71 72#define KSEG 0xfffffc0000000000 73#define K1BASE 0xfffffc8000000000 74#define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG) 75 76#define ROUNDUP8(x) ((ulong)(((ulong)x)+7) & ~7) 77#define ROUNDUP128(x) ((ulong)(((ulong)x) + 127) & ~127) 78#define ROUNDUP8K(x) ((ulong)(((ulong)(x)) + 8191) & ~8191) 79 80#define FIRST(x) ((((ulong)(x)) >> 33) & 0x3ff) 81#define SECOND(x) ((((ulong)(x)) >> 23) & 0x3ff) 82#define THIRD(x) ((((ulong)(x)) >> 13) & 0x3ff) 83#define THIRD_XXX(x) ((((ulong)(x)) >> 13) & 0xfff) 84#define PFN(x) ((((ulong)(x) & ~KSEG) >> 13)) 85 86/* Kernel write | kernel read | valid */ 87#define KPTE(x) ((ulong)((((ulong)(x)) << 32) | 0x1101)) 88 89#define HWRPB_PAGES 16 90#define MDT_BITMAP_PAGES 4 91 92#define NUM_KERNEL_THIRD (4) 93 94#define printf_lock(args...) \ 95 do { \ 96 SpinLock(&theLock); \ 97 printf(args); \ 98 SpinUnlock(&theLock); \ 99 } while (0) 100 101 102void unixBoot(int go, int argc, char **argv); 103void JToKern(char *bootadr, ulong rpb_percpu, ulong free_pfn, ulong k_argc, 104 char **k_argv, char **envp); 105void JToPal(ulong bootadr); 106void SlaveLoop(int cpu); 107 108volatile struct AlphaAccess *m5AlphaAccess; 109struct AlphaAccess m5Conf; 110 111ulong theLock; 112 113extern void SpinLock(ulong *lock); 114#define SpinUnlock(_x) *(_x) = 0; 115 116struct _kernel_params { 117 char *bootadr; 118 ulong rpb_percpu; 119 ulong free_pfn; 120 ulong argc; 121 ulong argv; 122 ulong envp; /* NULL */ 123}; 124 125extern consoleCallback[]; 126extern consoleFixup[]; 127long CallBackDispatcher(); 128long CallBackFixup(); 129 130/* 131 * m5 console output 132 */ 133 134void 135InitConsole() 136{ 137} 138 139char 140GetChar() 141{ 142 return m5AlphaAccess->inputChar; 143} 144 145void 146PutChar(char c) 147{ 148 m5AlphaAccess->outputChar = c; 149} 150 151int 152passArgs(int argc) 153{ 154 return 0; 155} 156 157int 158main(int argc, char **argv) 159{ 160 int x, i; 161 uint *k1ptr, *ksegptr; 162 163 InitConsole(); 164 printf_lock("M5 console: m5AlphaAccess @ 0x%x\n", m5AlphaAccess); 165 166 /* 167 * get configuration from backdoor 168 */ 169 m5Conf.last_offset = m5AlphaAccess->last_offset; 170 printf_lock("Got Configuration %d\n", m5Conf.last_offset); 171 172 m5Conf.last_offset = m5AlphaAccess->last_offset; 173 m5Conf.version = m5AlphaAccess->version; 174 m5Conf.numCPUs = m5AlphaAccess->numCPUs; 175 m5Conf.intrClockFrequency = m5AlphaAccess->intrClockFrequency; 176 m5Conf.cpuClock = m5AlphaAccess->cpuClock; 177 m5Conf.mem_size = m5AlphaAccess->mem_size; 178 m5Conf.kernStart = m5AlphaAccess->kernStart; 179 m5Conf.kernEnd = m5AlphaAccess->kernEnd; 180 m5Conf.entryPoint = m5AlphaAccess->entryPoint; 181 m5Conf.diskUnit = m5AlphaAccess->diskUnit; 182 m5Conf.diskCount = m5AlphaAccess->diskCount; 183 m5Conf.diskPAddr = m5AlphaAccess->diskPAddr; 184 m5Conf.diskBlock = m5AlphaAccess->diskBlock; 185 m5Conf.diskOperation = m5AlphaAccess->diskOperation; 186 m5Conf.outputChar = m5AlphaAccess->outputChar; 187 m5Conf.inputChar = m5AlphaAccess->inputChar; 188 m5Conf.bootStrapImpure = m5AlphaAccess->bootStrapImpure; 189 m5Conf.bootStrapCPU = m5AlphaAccess->bootStrapCPU; 190 191 if (m5Conf.version != ALPHA_ACCESS_VERSION) { 192 panic("Console version mismatch. Console expects %d. has %d \n", 193 ALPHA_ACCESS_VERSION, m5Conf.version); 194 } 195 196 /* 197 * setup arguments to kernel 198 */ 199 unixBoot(1, argc, argv); 200 201 x = *(volatile int *)(K1BASE-4); 202 while (1) 203 continue; 204 return x; 205} 206 207/* 208 * BOOTING 209 */ 210struct rpb m5_rpb = { 211 NULL, /* 000: physical self-reference */ 212 ((long)'H') | (((long)'W') << 8) | (((long)'R') << 16) | 213 ((long)'P' << 24) | (((long)'B') << 32), /* 008: contains "HWRPB" */ 214 6, /* 010: HWRPB version number */ 215 /* the byte count is wrong, but who needs it? - lance */ 216 0, /* 018: bytes in RPB perCPU CTB CRB MEDSC */ 217 0, /* 020: primary cpu id */ 218 PAGE_SIZE, /* 028: page size in bytes */ 219 43, /* 030: number of phys addr bits */ 220 127, /* 038: max valid ASN */ 221 {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','1'}, 222 /* 040: system serial num: 10 ascii chars */ 223 0, /* OVERRIDDEN */ 224 (1<<10), /* 058: system variation */ 225 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */ 226 1024*4096, /* 068: scaled interval clock intr freq */ 227 0, /* 070: cycle counter frequency */ 228 0x200000000, /* 078: virtual page table base */ 229 0, /* 080: reserved */ 230 0, /* 088: offset to translation buffer hint */ 231 1, /* 090: number of processor slots OVERRIDDEN*/ 232 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */ 233 0, /* 0A0: offset to per_cpu slots */ 234 1, /* 0A8: number of CTBs */ 235 sizeof(struct ctb_tt), 236 0, /* 0B8: offset to CTB (cons term block) */ 237 0, /* 0C0: offset to CRB (cons routine block) */ 238 0, /* 0C8: offset to memory descriptor table */ 239 0, /* 0D0: offset to config data block */ 240 0, /* 0D8: offset to FRU table */ 241 0, /* 0E0: virt addr of save term routine */ 242 0, /* 0E8: proc value for save term routine */ 243 0, /* 0F0: virt addr of restore term routine */ 244 0, /* 0F8: proc value for restore term routine */ 245 0, /* 100: virt addr of CPU restart routine */ 246 0, /* 108: proc value for CPU restart routine */ 247 0, /* 110: used to determine presence of kdebug */ 248 0, /* 118: reserved for hardware */ 249/* the checksum is wrong, but who needs it? - lance */ 250 0, /* 120: checksum of prior entries in rpb */ 251 0, /* 128: receive ready bitmask */ 252 0, /* 130: transmit ready bitmask */ 253 0, /* 138: Dynamic System Recog. offset */ 254}; 255 256ulong m5_tbb[] = { 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 257 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 258 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 259 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e }; 260 261struct rpb_percpu m5_rpb_percpu = { 262 {0,0,0,0,0,0,1,{0,0},{0,0,0,0,0,0,0,0}}, /* 000: boot/restart HWPCB */ 263 (STATE_PA | STATE_PP | STATE_CV | 264 STATE_PV | STATE_PMV | STATE_PL), /* 080: per-cpu state bits */ 265 0xc000, /* 088: palcode memory length */ 266 0x2000, /* 090: palcode scratch length */ 267 0x4000, /* 098: paddr of pal mem space */ 268 0x2000, /* 0A0: paddr of pal scratch space */ 269 (2 << 16) | (5 << 8) | 1, /* 0A8: PALcode rev required */ 270 11 | (2L << 32), /* 0B0: processor type */ 271 7, /* 0B8: processor variation */ 272 'M'|('5'<<8)|('A'<<16)|('0'<<24), /* 0C0: processor revision */ 273 {'M','5','/','A','l','p','h','a','0','0','0','0','0','0','0','0'}, 274 /* 0C8: proc serial num: 10 chars */ 275 0, /* 0D8: phys addr of logout area */ 276 0, /* 0E0: len in bytes of logout area */ 277 0, /* 0E8: halt pcb base */ 278 0, /* 0F0: halt pc */ 279 0, /* 0F8: halt ps */ 280 0, /* 100: halt arg list (R25) */ 281 0, /* 108: halt return address (R26) */ 282 0, /* 110: halt procedure value (R27) */ 283 0, /* 118: reason for halt */ 284 0, /* 120: for software */ 285 {0}, /* 128: inter-console comm buffer */ 286 {1,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0}, /* 1D0: PALcode revs available */ 287 0 /* 250: reserved for arch use */ 288/* the dump stack grows from the end of the rpb page not to reach here */ 289}; 290 291struct _m5_rpb_mdt { 292 long rpb_checksum; /* 000: checksum of entire mem desc table */ 293 long rpb_impaddr; /* 008: PA of implementation dep info */ 294 long rpb_numcl; /* 010: number of clusters */ 295 struct rpb_cluster rpb_cluster[3]; /* first instance of a cluster */ 296}; 297 298struct _m5_rpb_mdt m5_rpb_mdt = { 299 0, /* 000: checksum of entire mem desc table */ 300 0, /* 008: PA of implementation dep info */ 301 0, /* 010: number of clusters */ 302 {{ 0, /* 000: starting PFN of this cluster */ 303 0, /* 008: count of PFNs in this cluster */ 304 0, /* 010: count of tested PFNs in cluster */ 305 0, /* 018: va of bitmap */ 306 0, /* 020: pa of bitmap */ 307 0, /* 028: checksum of bitmap */ 308 1 /* 030: usage of cluster */ 309 }, 310 { 0, /* 000: starting PFN of this cluster */ 311 0, /* 008: count of PFNs in this cluster */ 312 0, /* 010: count of tested PFNs in cluster */ 313 0, /* 018: va of bitmap */ 314 0, /* 020: pa of bitmap */ 315 0, /* 028: checksum of bitmap */ 316 0 /* 030: usage of cluster */ 317 }, 318 { 0, /* 000: starting PFN of this cluster */ 319 0, /* 008: count of PFNs in this cluster */ 320 0, /* 010: count of tested PFNs in cluster */ 321 0, /* 018: va of bitmap */ 322 0, /* 020: pa of bitmap */ 323 0, /* 028: checksum of bitmap */ 324 0 /* 030: usage of cluster */ 325 }} 326}; 327 328/* constants for slotinfo bus_type subfield */ 329#define SLOTINFO_TC 0 330#define SLOTINFO_ISA 1 331#define SLOTINFO_EISA 2 332#define SLOTINFO_PCI 3 333 334struct rpb_ctb m5_rpb_ctb = { 335 CONS_DZ, /* 000: console type */ 336 0, /* 008: console unit */ 337 0, /* 010: reserved */ 338 0 /* 018: byte length of device dep portion */ 339}; 340 341/* we don't do any fixup (aka relocate the console) - we hope */ 342struct rpb_crb m5_rpb_crb = { 343 0, /* va of call-back dispatch rtn */ 344 0, /* pa of call-back dispatch rtn */ 345 0, /* va of call-back fixup rtn */ 346 0, /* pa of call-back fixup rtn */ 347 0, /* number of entries in phys/virt map */ 348 0 /* Number of pages to be mapped */ 349}; 350 351struct _rpb_name { 352 ulong length; 353 char name[16]; 354}; 355 356extern struct _rpb_name m5_name; 357 358struct rpb_dsr m5_rpb_dsr = { 359 0, 360 0, 361 0, 362}; 363 364struct _rpb_name m5_name = { 365 16, 366 {'U','M','I','C','H',' ','M','5','/','A','L','P','H','A',' ',0}, 367}; 368 369/* 370 * M5 has one LURT entry: 371 * 1050 is for workstations 372 * 1100 is servers (and is needed for CXX) 373 */ 374long m5_lurt[10] = { 9, 12, -1, -1, -1, -1, -1, -1, 1100, 1100 }; 375 376ulong unix_boot_mem; 377ulong bootadr; 378 379char **kargv; 380int kargc; 381ulong free_pfn; 382struct rpb_percpu *rpb_percpu; 383 384#define MAX_CPUS 32 385 386ulong bootStrapImpure[MAX_CPUS]; 387 388char * 389unix_boot_alloc(int pages) 390{ 391 char *ret = (char *) unix_boot_mem; 392 unix_boot_mem += (pages * PAGE_SIZE); 393 return ret; 394} 395 396ulong *first = 0; 397ulong *third_rpb = 0; 398ulong *reservedFixup = 0; 399 400int strcpy(char *dst, char *src); 401 402struct rpb *rpb; 403extern ulong _end; 404 405void 406unixBoot(int go, int argc, char **argv) 407{ 408 ulong *second, *third_kernel, ptr, *tbb, size, *percpu_logout; 409 unsigned char *mdt_bitmap; 410 long *lp1, *lp2, sum; 411 int i, cl; 412 int kern_first_page; 413 int mem_size = m5Conf.mem_size; 414 415 int mem_pages = mem_size / PAGE_SIZE, cons_pages; 416 ulong kernel_bytes, ksp, kernel_end, *unix_kernel_stack, bss, 417 ksp_bottom, ksp_top; 418 struct rpb_ctb *rpb_ctb; 419 struct ctb_tt *ctb_tt; 420 struct rpb_dsr *rpb_dsr; 421 struct rpb_crb *rpb_crb; 422 struct _m5_rpb_mdt *rpb_mdt; 423 int *rpb_lurt; 424 char *rpb_name; 425 ulong nextPtr; 426 427 printf_lock("memsize %x pages %x \n", mem_size, mem_pages); 428 429 /* Allocate: 430 * two pages for the HWRPB 431 * five page table pages: 432 * 1: First level page table 433 * 1: Second level page table 434 * 1: Third level page table for HWRPB 435 * 2: Third level page table for kernel (for up to 16MB) 436 * set up the page tables 437 * load the kernel at the physical address 0x230000 438 * build the HWRPB 439 * set up memory descriptor table to give up the 440 * physical memory between the end of the page 441 * tables and the start of the kernel 442 * enable kseg addressing 443 * jump to the kernel 444 */ 445 446 unix_boot_mem = ROUNDUP8K(&_end); 447 448 printf_lock("First free page after ROM 0x%x\n", unix_boot_mem); 449 450 rpb = (struct rpb *) unix_boot_alloc( HWRPB_PAGES); 451 452 mdt_bitmap = (unsigned char *) unix_boot_alloc(MDT_BITMAP_PAGES); 453 first = (ulong *)unix_boot_alloc(1); 454 second = (ulong *)unix_boot_alloc(1); 455 third_rpb = (ulong *)unix_boot_alloc(1); 456 reservedFixup = (ulong*) unix_boot_alloc(1); 457 third_kernel = (ulong *)unix_boot_alloc(NUM_KERNEL_THIRD); 458 percpu_logout = (ulong*)unix_boot_alloc(1); 459 460 cons_pages = KSEG_TO_PHYS(unix_boot_mem) / PAGE_SIZE; 461 462 /* Set up the page tables */ 463 bzero((char *)first, PAGE_SIZE); 464 bzero((char *)second, PAGE_SIZE); 465 bzero((char *)reservedFixup, PAGE_SIZE); 466 bzero((char *)third_rpb, HWRPB_PAGES * PAGE_SIZE); 467 bzero((char *)third_kernel, PAGE_SIZE * NUM_KERNEL_THIRD); 468 469 first[0] = KPTE(PFN(second)); 470 first[1] = KPTE(PFN(first)); /* Region 3 */ 471 472 /* Region 0 */ 473 second[SECOND(0x10000000)] = KPTE(PFN(third_rpb)); 474 475 for (i = 0; i < NUM_KERNEL_THIRD; i++) { 476 /* Region 1 */ 477 second[SECOND(0x20000000) + i] = KPTE(PFN(third_kernel) + i); 478 } 479 /* Region 2 */ 480 second[SECOND(0x40000000)] = KPTE(PFN(second)); 481 482 483 /* For some obscure reason, Dec Unix's database read 484 * from /etc/sysconfigtab is written to this fixed 485 * mapped memory location. Go figure, since it is 486 * not initialized by the console. Maybe it is 487 * to look at the database from the console 488 * after a boot/crash. 489 * 490 * Black magic to estimate the max size. SEGVs on overflow 491 * bugnion 492 */ 493 494#define DATABASE_BASE 0x20000000 495#define DATABASE_END 0x20020000 496 497 ulong *dbPage = (ulong*)unix_boot_alloc(1); 498 second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage)); 499 for (i = DATABASE_BASE; i < DATABASE_END ; i += 8096) { 500 ulong *db = (ulong*)unix_boot_alloc(1); 501 dbPage[THIRD(i)] = KPTE(PFN(db)); 502 } 503 504 /* Region 0 */ 505 /* Map the HWRPB */ 506 for (i = 0; i < HWRPB_PAGES; i++) 507 third_rpb[i] = KPTE(PFN(rpb) + i); 508 509 /* Map the MDT bitmap table */ 510 for (i = 0; i < MDT_BITMAP_PAGES; i++) { 511 third_rpb[HWRPB_PAGES + i] = KPTE(PFN(mdt_bitmap) + i); 512 } 513 514 /* Protect the PAL pages */ 515 for (i = 1; i < PFN(first); i++) 516 third_rpb[HWRPB_PAGES + MDT_BITMAP_PAGES + i] = KPTE(i); 517 518 /* Set up third_kernel after it's loaded, when we know where it is */ 519 kern_first_page = (KSEG_TO_PHYS(m5Conf.kernStart)/PAGE_SIZE); 520 kernel_end = ksp_top = ROUNDUP8K(m5Conf.kernEnd); 521 bootadr = m5Conf.entryPoint; 522 523 printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x" 524 " l2reserv 0x%x\n", 525 rpb, first, second, third_rpb, third_kernel, reservedFixup); 526 if (kernel_end - m5Conf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { 527 printf_lock("Kernel is more than 8MB 0x%x - 0x%x = 0x%x\n", 528 kernel_end, m5Conf.kernStart, 529 kernel_end - m5Conf.kernStart ); 530 panic("kernel too big\n"); 531 } 532 533 /* Map the kernel's pages into the third level of region 2 */ 534 for (ptr = m5Conf.kernStart; ptr < kernel_end; ptr += PAGE_SIZE) { 535 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); 536 } 537 538 /* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */ 539 ksp = ksp_top + (3 * PAGE_SIZE); 540 if (ksp - m5Conf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { 541 printf_lock("Kernel stack pushd us over 8MB\n"); 542 panic("ksp too big\n"); 543 } 544 if (THIRD_XXX((ulong)ksp_top) > NUM_KERNEL_THIRD * 1024) { 545 panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n"); 546 } 547 ptr = (ulong) ksp_top; 548 bzero((char *)ptr, PAGE_SIZE * 2); 549 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */ 550 ptr += PAGE_SIZE; 551 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */ 552 ptr += PAGE_SIZE; 553 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); 554 ptr += PAGE_SIZE; 555 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */ 556 557 /* put argv into the bottom of the stack - argv starts at 1 because 558 * the command thatr got us here (i.e. "unixboot) is in argv[0]. 559 */ 560 ksp -= 8; /* Back up one longword */ 561 ksp -= argc * sizeof(char *); /* Make room for argv */ 562 kargv = (char **) ksp; 563 for (i = 1; i < argc; i++) { /* Copy arguments to stack */ 564 ksp -= ((strlen(argv[i]) + 1) + 7) & ~0x7; 565 kargv[i-1] = (char *) ksp; 566 strcpy(kargv[i - 1], argv[i]); 567 } 568 kargc = i - 1; 569 kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */ 570 ksp -= sizeof(char *); /* point above last arg for no real reason */ 571 572 free_pfn = PFN(ptr); 573 574 bcopy((char *)&m5_rpb, (char *)rpb, sizeof(struct rpb)); 575 576 rpb->rpb_selfref = (struct rpb *) KSEG_TO_PHYS(rpb); 577 rpb->rpb_string = 0x0000004250525748; 578 579 tbb = (ulong *) (((char *) rpb) + ROUNDUP8(sizeof(struct rpb))); 580 rpb->rpb_trans_off = (ulong)tbb - (ulong)rpb; 581 bcopy((char *)m5_tbb, (char *)tbb, sizeof(m5_tbb)); 582 583 /* 584 * rpb_counter. Use to determine timeouts in OS. 585 * XXX must be patched after a checkpoint restore (I guess) 586 */ 587 588 printf_lock("CPU Clock at %d MHz IntrClockFrequency=%d \n", 589 m5Conf.cpuClock, m5Conf.intrClockFrequency); 590 rpb->rpb_counter = m5Conf.cpuClock * 1000 * 1000; 591 592 /* 593 * By definition, the rpb_clock is scaled by 4096 (in hz) 594 */ 595 rpb->rpb_clock = m5Conf.intrClockFrequency * 4096; 596 597 /* 598 * Per CPU Slots. Multiprocessor support. 599 */ 600 int percpu_size = ROUNDUP128(sizeof(struct rpb_percpu)); 601 602 printf_lock("Booting with %d processor(s) \n", m5Conf.numCPUs); 603 604 rpb->rpb_numprocs = m5Conf.numCPUs; 605 rpb->rpb_slotsize = percpu_size; 606 rpb_percpu = (struct rpb_percpu *) 607 ROUNDUP128(((ulong)tbb) + (sizeof(m5_tbb))); 608 609 rpb->rpb_percpu_off = (ulong)rpb_percpu - (ulong)rpb; 610 611 for (i = 0; i < m5Conf.numCPUs; i++) { 612 struct rpb_percpu *thisCPU = (struct rpb_percpu*) 613 ((ulong)rpb_percpu + percpu_size * i); 614 615 bzero((char *)thisCPU, percpu_size); 616 bcopy((char *)&m5_rpb_percpu, (char *)thisCPU, 617 sizeof(struct rpb_percpu)); 618 619 thisCPU->rpb_pcb.rpb_ksp = ksp; 620 thisCPU->rpb_pcb.rpb_ptbr = PFN(first); 621 622 thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout); 623 thisCPU->rpb_logout_len = PAGE_SIZE; 624 625 printf_lock("KSP: 0x%x PTBR 0x%x\n", 626 thisCPU->rpb_pcb.rpb_ksp, thisCPU->rpb_pcb.rpb_ptbr); 627 628 if (i) { 629 bootStrapImpure[i] = (ulong)unix_boot_alloc(1); 630 } 631 } 632 633 nextPtr = (ulong)rpb_percpu + percpu_size * m5Conf.numCPUs; 634 635 /* 636 * Console Terminal Block 637 */ 638 rpb_ctb = (struct rpb_ctb *) nextPtr; 639 ctb_tt = (struct ctb_tt*) rpb_ctb; 640 641 rpb->rpb_ctb_off = ((ulong)rpb_ctb) - (ulong)rpb; 642 rpb->rpb_ctb_size = sizeof(struct rpb_ctb); 643 644 bzero((char *)rpb_ctb, sizeof(struct ctb_tt)); 645 646 rpb_ctb->rpb_type = CONS_DZ; 647 rpb_ctb->rpb_length = sizeof(ctb_tt) - sizeof(rpb_ctb); 648 649 /* 650 * uart initizliation 651 */ 652 ctb_tt->ctb_csr = 0; 653 ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */ 654 ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */ 655 ctb_tt->ctb_baud = 9600; 656 ctb_tt->ctb_put_sts = 0; 657 ctb_tt->ctb_get_sts = 0; 658 659 rpb_crb = (struct rpb_crb *) (((ulong)rpb_ctb) + sizeof(struct ctb_tt)); 660 rpb->rpb_crb_off = ((ulong)rpb_crb) - (ulong)rpb; 661 662 bzero((char *)rpb_crb, sizeof(struct rpb_crb)); 663 664 /* 665 * console callback stuff (m5) 666 */ 667 rpb_crb->rpb_num = 1; 668 rpb_crb->rpb_mapped_pages = HWRPB_PAGES; 669 rpb_crb->rpb_map[0].rpb_virt = 0x10000000; 670 rpb_crb->rpb_map[0].rpb_phys = KSEG_TO_PHYS(((ulong)rpb) & ~0x1fff); 671 rpb_crb->rpb_map[0].rpb_pgcount = HWRPB_PAGES; 672 673 printf_lock("Console Callback at 0x%x, fixup at 0x%x, crb offset: 0x%x\n", 674 rpb_crb->rpb_va_disp, rpb_crb->rpb_va_fixup, rpb->rpb_crb_off); 675 676 rpb_mdt = (struct _m5_rpb_mdt *)((ulong)rpb_crb + sizeof(struct rpb_crb)); 677 rpb->rpb_mdt_off = (ulong)rpb_mdt - (ulong)rpb; 678 bcopy((char *)&m5_rpb_mdt, (char *)rpb_mdt, sizeof(struct _m5_rpb_mdt)); 679 680 681 cl = 0; 682 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page; 683 cl++; 684 685 rpb_mdt->rpb_cluster[cl].rpb_pfn = kern_first_page; 686 rpb_mdt->rpb_cluster[cl].rpb_pfncount = mem_pages - kern_first_page; 687 rpb_mdt->rpb_cluster[cl].rpb_pfntested = 688 rpb_mdt->rpb_cluster[cl].rpb_pfncount; 689 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap); 690 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * PAGE_SIZE; 691 cl++; 692 693 rpb_mdt->rpb_numcl = cl; 694 695 for (i = 0; i < cl; i++) 696 printf_lock("Memory cluster %d [%d - %d]\n", i, 697 rpb_mdt->rpb_cluster[i].rpb_pfn, 698 rpb_mdt->rpb_cluster[i].rpb_pfncount); 699 700 /* Checksum the rpb for good luck */ 701 sum = 0; 702 lp1 = (long *)&rpb_mdt->rpb_impaddr; 703 lp2 = (long *)&rpb_mdt->rpb_cluster[cl]; 704 while (lp1 < lp2) sum += *lp1++; 705 rpb_mdt->rpb_checksum = sum; 706 707 /* XXX should checksum the cluster descriptors */ 708 bzero((char *)mdt_bitmap, MDT_BITMAP_PAGES * PAGE_SIZE); 709 for (i = 0; i < mem_pages/8; i++) 710 ((unsigned char *)mdt_bitmap)[i] = 0xff; 711 712 printf_lock("Initalizing mdt_bitmap addr 0x%x mem_pages %x \n", 713 (long)mdt_bitmap,(long)mem_pages); 714 715 m5_rpb.rpb_config_off = 0; 716 m5_rpb.rpb_fru_off = 0; 717 718 rpb_dsr = (struct rpb_dsr *)((ulong)rpb_mdt + sizeof(struct _m5_rpb_mdt)); 719 rpb->rpb_dsr_off = (ulong)rpb_dsr - (ulong)rpb; 720 bzero((char *)rpb_dsr, sizeof(struct rpb_dsr)); 721 rpb_dsr->rpb_smm = 1578; /* Official XXM SMM number as per SRM */ 722 rpb_dsr->rpb_smm = 1089; /* Official Alcor SMM number as per SRM */ 723 724 rpb_lurt = (int *) ROUNDUP8((ulong)rpb_dsr + sizeof(struct rpb_dsr)); 725 rpb_dsr->rpb_lurt_off = ((ulong) rpb_lurt) - (ulong) rpb_dsr; 726 bcopy((char *)m5_lurt, (char *)rpb_lurt, sizeof(m5_lurt)); 727 728 rpb_name = (char *) ROUNDUP8(((ulong)rpb_lurt) + sizeof(m5_lurt)); 729 rpb_dsr->rpb_sysname_off = ((ulong) rpb_name) - (ulong) rpb_dsr; 730#define THENAME " M5/Alpha " 731 sum = sizeof(THENAME); 732 bcopy(THENAME, rpb_name, sum); 733 *(ulong *)rpb_name = sizeof(THENAME); /* put in length field */ 734 735 /* calculate size of rpb */ 736 rpb->rpb_size = ((ulong) &rpb_name[sum]) - (ulong)rpb; 737 738 if (rpb->rpb_size > PAGE_SIZE * HWRPB_PAGES) { 739 panic("HWRPB_PAGES=%d too small for HWRPB !!! \n"); 740 } 741 742 ulong *rpbptr = (ulong*)((char*)rpb_dsr + sizeof(struct rpb_dsr)); 743 rpb_crb->rpb_pa_disp = KSEG_TO_PHYS(rpbptr); 744 rpb_crb->rpb_va_disp = 0x10000000 + 745 (((ulong)rpbptr - (ulong)rpb) & (0x2000 * HWRPB_PAGES - 1)); 746 printf_lock("ConsoleDispatch at virt %x phys %x val %x\n", 747 rpb_crb->rpb_va_disp, rpb_crb->rpb_pa_disp, consoleCallback); 748 *rpbptr++ = 0; 749 *rpbptr++ = (ulong) consoleCallback; 750 rpb_crb->rpb_pa_fixup = KSEG_TO_PHYS(rpbptr); 751 rpb_crb->rpb_va_fixup = 0x10000000 + 752 (((ulong)rpbptr - (ulong)rpb) & (0x2000 * HWRPB_PAGES - 1)); 753 *rpbptr++ = 0; 754 755 *rpbptr++ = (ulong) consoleFixup; 756 757 /* Checksum the rpb for good luck */ 758 sum = 0; 759 lp1 = (long *)rpb; 760 lp2 = &rpb->rpb_checksum; 761 while (lp1 < lp2) 762 sum += *lp1++; 763 *lp2 = sum; 764 765 /* 766 * MP bootstrap 767 */ 768 for (i = 1; i < m5Conf.numCPUs; i++) { 769 printf_lock("Bootstraping CPU %d with sp=0x%x\n", 770 i, bootStrapImpure[i]); 771 m5AlphaAccess->bootStrapImpure = bootStrapImpure[i]; 772 m5AlphaAccess->bootStrapCPU = i; 773 } 774 775 /* 776 * Make sure that we are not stepping on the kernel 777 */ 778 if ((ulong)unix_boot_mem >= (ulong)m5Conf.kernStart) { 779 panic("CONSOLE: too much memory. Smashing kernel\n"); 780 } else { 781 printf_lock("unix_boot_mem ends at %x \n", unix_boot_mem); 782 } 783 784 if (go) 785 JToKern((char *)bootadr, (ulong)rpb_percpu, free_pfn, kargc, kargv, 786 NULL); 787} 788 789 790void 791JToKern(char *bootadr, ulong rpb_percpu, ulong free_pfn, ulong k_argc, 792 char **k_argv, char **envp) 793{ 794 extern ulong palJToKern[]; 795 796 struct _kernel_params *kernel_params = (struct _kernel_params *) KSEG; 797 int i; 798 799 printf_lock("k_argc = %d ", k_argc); 800 for (i = 0; i < k_argc; i++) { 801 printf_lock("'%s' ", k_argv[i]); 802 } 803 printf_lock("\n"); 804 805 kernel_params->bootadr = bootadr; 806 kernel_params->rpb_percpu = KSEG_TO_PHYS(rpb_percpu); 807 kernel_params->free_pfn = free_pfn; 808 kernel_params->argc = k_argc; 809 kernel_params->argv = (ulong)k_argv; 810 kernel_params->envp = (ulong)envp; 811 printf_lock("jumping to kernel at 0x%x, (PCBB 0x%x pfn %d)\n", 812 bootadr, rpb_percpu, free_pfn); 813 JToPal(KSEG_TO_PHYS(palJToKern)); 814 printf_lock("returned from JToPal. Looping\n"); 815 while (1) 816 continue; 817} 818 819void 820JToPal(ulong bootadr) 821{ 822 cServe(bootadr, 0, CSERVE_K_JTOPAL); 823 824 /* 825 * Make sure that floating point is enabled incase 826 * it was disabled by the user program. 827 */ 828 wrfen(1); 829} 830 831int 832strcpy(char *dst, char *src) 833{ 834 int i = 0; 835 while (*src) { 836 *dst++ = *src++; 837 i++; 838 } 839 return i; 840} 841 842/* 843 * Console I/O 844 * 845 */ 846 847int numOpenDevices = 11; 848struct { 849 char name[128]; 850} deviceState[32]; 851 852#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100 0" 853 854void 855DeviceOperation(long op, long channel, long count, long address, long block) 856{ 857 long pAddr; 858 859 if (strcmp(deviceState[channel].name, BOOTDEVICE_NAME )) { 860 panic("DeviceRead: only implemented for root disk \n"); 861 } 862 pAddr = KSEG_TO_PHYS(address); 863 if (pAddr + count > m5Conf.mem_size) { 864 panic("DeviceRead: request out of range \n"); 865 } 866 867 m5AlphaAccess->diskCount = count; 868 m5AlphaAccess->diskPAddr = pAddr; 869 m5AlphaAccess->diskBlock = block; 870 m5AlphaAccess->diskOperation = op; /* launch */ 871} 872 873/* 874 * M5 Console callbacks 875 * 876 */ 877 878/* AXP manual 2-31 */ 879#define CONSCB_GETC 0x1 880#define CONSCB_PUTS 0x2 881#define CONSCB_RESET_TERM 0x3 882#define CONSCB_SET_TERM_INT 0x4 883#define CONSCB_SET_TERM_CTL 0x5 884#define CONSCB_PROCESS_KEY 0x6 885#define CONSCB_OPEN_CONSOLE 0x7 886#define CONSCB_CLOSE_CONSOLE 0x8 887 888#define CONSCB_OPEN 0x10 889#define CONSCB_CLOSE 0x11 890#define CONSCB_READ 0x13 891 892#define CONSCB_GETENV 0x22 893 894/* AXP manual 2-26 */ 895#define ENV_AUTO_ACTION 0X01 896#define ENV_BOOT_DEV 0X02 897#define ENV_BOOTDEF_DEV 0X03 898#define ENV_BOOTED_DEV 0X04 899#define ENV_BOOT_FILE 0X05 900#define ENV_BOOTED_FILE 0X06 901#define ENV_BOOT_OSFLAGS 0X07 902#define ENV_BOOTED_OSFLAGS 0X08 903#define ENV_BOOT_RESET 0X09 904#define ENV_DUMP_DEV 0X0A 905#define ENV_ENABLE_AUDIT 0X0B 906#define ENV_LICENSE 0X0C 907#define ENV_CHAR_SET 0X0D 908#define ENV_LANGUAGE 0X0E 909#define ENV_TTY_DEV 0X0F 910#define ENV_SCSIID 0X42 911#define ENV_SCSIFAST 0X43 912#define ENV_COM1_BAUD 0X44 913#define ENV_COM1_MODEM 0X45 914#define ENV_COM1_FLOW 0X46 915#define ENV_COM1_MISC 0X47 916#define ENV_COM2_BAUD 0X48 917#define ENV_COM2_MODEM 0X49 918#define ENV_COM2_FLOW 0X4A 919#define ENV_COM2_MISC 0X4B 920#define ENV_PASSWORD 0X4C 921#define ENV_SECURE 0X4D 922#define ENV_LOGFAIL 0X4E 923#define ENV_SRM2DEV_ID 0X4F 924 925#define MAX_ENVLEN 32 926 927char env_auto_action[MAX_ENVLEN] = "BOOT"; 928char env_boot_dev[MAX_ENVLEN] = ""; 929char env_bootdef_dev[MAX_ENVLEN] = ""; 930char env_booted_dev[MAX_ENVLEN] = BOOTDEVICE_NAME; 931char env_boot_file[MAX_ENVLEN] = ""; 932char env_booted_file[MAX_ENVLEN] = ""; 933char env_boot_osflags[MAX_ENVLEN] = ""; 934char env_booted_osflags[MAX_ENVLEN] = ""; 935char env_boot_reset[MAX_ENVLEN] = ""; 936char env_dump_dev[MAX_ENVLEN] = ""; 937char env_enable_audit[MAX_ENVLEN] = ""; 938char env_license[MAX_ENVLEN] = ""; 939char env_char_set[MAX_ENVLEN] = ""; 940char env_language[MAX_ENVLEN] = ""; 941char env_tty_dev[MAX_ENVLEN] = "0"; 942char env_scsiid[MAX_ENVLEN] = ""; 943char env_scsifast[MAX_ENVLEN] = ""; 944char env_com1_baud[MAX_ENVLEN] = ""; 945char env_com1_modem[MAX_ENVLEN] = ""; 946char env_com1_flow[MAX_ENVLEN] = ""; 947char env_com1_misc[MAX_ENVLEN] = ""; 948char env_com2_baud[MAX_ENVLEN] = ""; 949char env_com2_modem[MAX_ENVLEN] = ""; 950char env_com2_flow[MAX_ENVLEN] = ""; 951char env_com2_misc[MAX_ENVLEN] = ""; 952char env_password[MAX_ENVLEN] = ""; 953char env_secure[MAX_ENVLEN] = ""; 954char env_logfail[MAX_ENVLEN] = ""; 955char env_srm2dev_id[MAX_ENVLEN] = ""; 956 957#define MAX_ENV_INDEX 100 958char *envptr[MAX_ENV_INDEX] = { 959 0, /* 0x00 */ 960 env_auto_action, /* 0x01 */ 961 env_boot_dev, /* 0x02 */ 962 env_bootdef_dev, /* 0x03 */ 963 env_booted_dev, /* 0x04 */ 964 env_boot_file, /* 0x05 */ 965 env_booted_file, /* 0x06 */ 966 env_boot_osflags, /* 0x07 */ 967 env_booted_osflags, /* 0x08 */ 968 env_boot_reset, /* 0x09 */ 969 env_dump_dev, /* 0x0A */ 970 env_enable_audit, /* 0x0B */ 971 env_license, /* 0x0C */ 972 env_char_set, /* 0x0D */ 973 (char *)&env_language, /* 0x0E */ 974 env_tty_dev, /* 0x0F */ 975 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x10 - 0x1F */ 976 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x20 - 0x2F */ 977 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x30 - 0x3F */ 978 0, /* 0x40 */ 979 0, /* 0x41 */ 980 env_scsiid, /* 0x42 */ 981 env_scsifast, /* 0x43 */ 982 env_com1_baud, /* 0x44 */ 983 env_com1_modem, /* 0x45 */ 984 env_com1_flow, /* 0x46 */ 985 env_com1_misc, /* 0x47 */ 986 env_com2_baud, /* 0x48 */ 987 env_com2_modem, /* 0x49 */ 988 env_com2_flow, /* 0x4A */ 989 env_com2_misc, /* 0x4B */ 990 env_password, /* 0x4C */ 991 env_secure, /* 0x4D */ 992 env_logfail, /* 0x4E */ 993 env_srm2dev_id, /* 0x4F */ 994 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x50 - 0x5F */ 995 0, /* 0x60 */ 996 0, /* 0x61 */ 997 0, /* 0x62 */ 998 0, /* 0x63 */ 999}; 1000 1001long 1002CallBackDispatcher(long a0, long a1, long a2, long a3, long a4) 1003{ 1004 long i; 1005 switch (a0) { 1006 case CONSCB_GETC: 1007 return GetChar(); 1008 1009 case CONSCB_PUTS: 1010 for (i = 0; i < a3; i++) 1011 PutChar(*((char *)a2 + i)); 1012 return a3; 1013 1014 case CONSCB_GETENV: 1015 if (a1 >= 0 && a1 < MAX_ENV_INDEX && envptr[a1] != 0 && *envptr[a1]) { 1016 i = strcpy((char*)a2, envptr[a1]); 1017 } else { 1018 strcpy((char*)a2, ""); 1019 i = (long)0xc000000000000000; 1020 if (a1 >= 0 && a1 < MAX_ENV_INDEX) 1021 printf_lock("GETENV unsupported option %d (0x%x)\n", a1, a1); 1022 else 1023 printf_lock("GETENV unsupported option %s\n", a1); 1024 } 1025 1026 if (i > a3) 1027 panic("CONSCB_GETENV overwrote buffer\n"); 1028 return i; 1029 1030 case CONSCB_OPEN: 1031 bcopy((char*)a1, deviceState[numOpenDevices].name, a2); 1032 deviceState[numOpenDevices].name[a2] = '\0'; 1033 printf_lock("CONSOLE OPEN : %s --> success \n", 1034 deviceState[numOpenDevices].name); 1035 return numOpenDevices++; 1036 1037 case CONSCB_READ: 1038 DeviceOperation(a0, a1, a2, a3, a4); 1039 break; 1040 1041 case CONSCB_CLOSE: 1042 break; 1043 1044 case CONSCB_OPEN_CONSOLE: 1045 printf_lock("CONSOLE OPEN\n"); 1046 return 0; /* success */ 1047 break; /* not reached */ 1048 1049 case CONSCB_CLOSE_CONSOLE: 1050 printf_lock("CONSOLE CLOSE\n"); 1051 return 0; /* success */ 1052 break; /* not reached */ 1053 1054 default: 1055 panic("CallBackDispatcher(%x,%x,%x,%x,%x)\n", a0, a1, a2, a3, a4); 1056 } 1057 1058 return 0; 1059} 1060 1061long 1062CallBackFixup(int a0, int a1, int a2) 1063{ 1064 long temp; 1065 /* 1066 * Linux uses r8 for the current pointer (pointer to data 1067 * structure contating info about currently running process). It 1068 * is set when the kernel starts and is expected to remain 1069 * there... Problem is that the unlike the kernel, the console 1070 * does not prevent the assembler from using r8. So here is a work 1071 * around. So far this has only been a problem in CallBackFixup() 1072 * but any other call back functions couldd cause a problem at 1073 * some point 1074 */ 1075 1076 /* save off the current pointer to a temp variable */ 1077 asm("bis $8, $31, %0" : "=r" (temp)); 1078 1079 /* call original code */ 1080 printf_lock("CallbackFixup %x %x, t7=%x\n", a0, a1, temp); 1081 1082 /* restore the current pointer */ 1083 asm("bis %0, $31, $8" : : "r" (temp) : "$8"); 1084 1085 return 0; 1086} 1087 1088void 1089SlaveCmd(int cpu, struct rpb_percpu *my_rpb) 1090{ 1091 extern ulong palJToSlave[]; 1092 1093 printf_lock("Slave CPU %d console command %s", cpu, 1094 my_rpb->rpb_iccb.iccb_rxbuf); 1095 1096 my_rpb->rpb_state |= STATE_BIP; 1097 my_rpb->rpb_state &= ~STATE_RC; 1098 1099 printf_lock("SlaveCmd: restart %x %x vptb %x my_rpb %x my_rpb_phys %x\n", 1100 rpb->rpb_restart, rpb->rpb_restart_pv, rpb->rpb_vptb, my_rpb, 1101 KSEG_TO_PHYS(my_rpb)); 1102 1103 cServe(KSEG_TO_PHYS(palJToSlave), (ulong)rpb->rpb_restart, 1104 CSERVE_K_JTOPAL, rpb->rpb_restart_pv, rpb->rpb_vptb, 1105 KSEG_TO_PHYS(my_rpb)); 1106 1107 panic("SlaveCmd returned \n"); 1108} 1109 1110void 1111SlaveLoop(int cpu) 1112{ 1113 int size = ROUNDUP128(sizeof(struct rpb_percpu)); 1114 struct rpb_percpu *my_rpb = (struct rpb_percpu*) 1115 ((ulong)rpb_percpu + size * cpu); 1116 1117 if (cpu == 0) { 1118 panic("CPU�0 entering slaveLoop. Reenetering the console. HOSED\n"); 1119 } else { 1120 printf_lock("Entering slaveloop for cpu %d my_rpb=%x\n", cpu, my_rpb); 1121 } 1122 1123 // swap the processors context to the one in the 1124 // rpb_percpu struct very carefully (i.e. no stack usage) 1125 // so that linux knows which processor ends up in __smp_callin 1126 // and we don't trash any data is the process 1127 SlaveSpin(cpu, my_rpb, &my_rpb->rpb_iccb.iccb_rxlen); 1128} 1129