console.c revision 8009:54f46550ad2e
1 2 3/* ****************************************** 4 * SimOS SRM Console 5 * 6 * Derived from Lance Berc's SRM console 7 * for the SRC XXM�Machine 8 * ******************************************/ 9 10 11typedef unsigned long long uint64_t; 12typedef unsigned long long uint64; 13typedef unsigned int uint32_t; 14typedef unsigned int uint32; 15 16#define CONSOLE 17#include "alpha_access.h" 18 19#if 0 20#include "new_aouthdr.h" 21#include "srcmax.h" 22#endif 23 24/* from ../h */ 25#include "lib.h" 26#include "rpb.h" 27#include "cserve.h" 28 29#define CONS_INT_TX 0x01 /* interrupt enable / state bits */ 30#define CONS_INT_RX 0x02 31 32#define KSEG 0xfffffc0000000000 33#define K1BASE 0xfffffc8000000000 34#define KSEG_TO_PHYS(x)(((ul)x) & ~KSEG) 35 36#ifdef TSUNAMI 37#define ALPHA_ACCESS_BASE 0xfffffd0200000000 38#elif TLASER 39#define ALPHA_ACCESS_BASE 0xfffffc8000a00000 40#else 41#error TSUNAMI/TLASER not defined. 42#endif 43 44#define PHYS_TO_K1(_x) (K1BASE|(_x)) 45 46#define AOUT_LOAD_ADDR (KSEG|0xf000) 47 48#define ROUNDUP8(x) ((ul)(((ul)x)+7) & ~7) 49#define ROUNDUP128(x) ((ul)(((ul)x)+127) & ~127) 50#define ROUNDUP8K(x) ((ul)(((ul)(x))+8191) & ~8191) 51 52#define FIRST(x) ((((ul)(x)) >> 33) & 0x3ff) 53#define SECOND(x) ((((ul)(x)) >> 23) & 0x3ff) 54#define THIRD(x) ((((ul)(x)) >> 13) & 0x3ff) 55#define THIRD_XXX(x) ((((ul)(x)) >> 13) & 0xfff) 56#define PFN(x) ((((ul)(x) & ~KSEG) >> 13)) 57 58/* Kernel write | kernel read | valid */ 59#define KPTE(x) ((ul)((((ul)(x)) << 32) | 0x1101)) 60 61#define HWRPB_PAGES 4 62#define MDT_BITMAP_PAGES 4 63 64#define CSERVE_K_JTOKERN 0x18 65 66#define NUM_KERNEL_THIRD (4) 67 68#define printf_lock(args...) \ 69 do { \ 70 SpinLock(&theLock); \ 71 printf(args); \ 72 SpinUnlock(&theLock); \ 73 } while (0) 74 75 76static unixBoot(int go, int argc, char **argv); 77void jToPal(ul bootadr); 78void SlaveLoop(int cpu); 79 80 81struct AlphaAccess simosConf; 82 83/* ************************************************************** 84 * Console callbacks use VMS calling conventions 85 * read AXP manual, 2-64. 86 * ***************************************************************/ 87typedef struct OpenVMSFunc { 88 long dummy; 89 long func; 90}OpenVMSFunc; 91 92OpenVMSFunc callbackFunc, fixupFunc; 93 94 95 96 97ul theLock; 98 99 100extern void SpinLock(ul *lock); 101#define SpinUnlock(_x) *(_x) = 0; 102 103struct _kernel_params { 104 char *bootadr; 105 ul rpb_percpu; 106 ul free_pfn; 107 ul argc; 108 ul argv; 109 ul envp; /* NULL */ 110}; 111 112 113extern consoleCallback[]; 114extern consoleFixup[]; 115long CallBackDispatcher(); 116long CallBackFixup(); 117 118/* 119 * simos console output 120 */ 121 122void InitConsole(void) 123{ 124#if 0 125 CDR->intr_status =(DevRegister)(DEV_CNSLE_RX_INTR |DEV_CNSLE_TX_INTR); 126#endif 127} 128 129char GetChar() 130{ 131 struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE); 132 return k1Conf->inputChar; 133} 134 135void PutChar(char c) 136{ 137#if 0 138 CDR->data = c; 139#endif 140#if 0 141 *(int*) PHYS_TO_K1(SLOT_D_COM1<<5) = c; 142#endif 143 struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE); 144 k1Conf->outputChar = c; 145 146} 147 148 149int 150passArgs(int argc) 151{ return 0; } 152 153int 154main(int argc, char **argv) 155{ 156 int x,i; 157 struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE); 158 ui *k1ptr,*ksegptr; 159 160 161 InitConsole(); 162 printf_lock("M5 console\n"); 163 /* 164 * get configuration from backdoor 165 */ 166 simosConf.last_offset = k1Conf->last_offset; 167 printf_lock("Got Configuration %d \n",simosConf.last_offset); 168 169 simosConf.last_offset = k1Conf->last_offset; 170 simosConf.version = k1Conf->version; 171 simosConf.numCPUs = k1Conf->numCPUs; 172 simosConf.intrClockFrequency = k1Conf->intrClockFrequency; 173 simosConf.cpuClock = k1Conf->cpuClock; 174 simosConf.mem_size = k1Conf->mem_size; 175 simosConf.kernStart = k1Conf->kernStart; 176 simosConf.kernEnd = k1Conf->kernEnd; 177 simosConf.entryPoint = k1Conf->entryPoint; 178 simosConf.diskUnit = k1Conf->diskUnit; 179 simosConf.diskCount = k1Conf->diskCount; 180 simosConf.diskPAddr = k1Conf->diskPAddr; 181 simosConf.diskBlock = k1Conf->diskBlock; 182 simosConf.diskOperation = k1Conf->diskOperation; 183 simosConf.outputChar = k1Conf->outputChar; 184 simosConf.inputChar = k1Conf->inputChar; 185 simosConf.bootStrapImpure = k1Conf->bootStrapImpure; 186 simosConf.bootStrapCPU = k1Conf->bootStrapCPU; 187 188 if (simosConf.version != ALPHA_ACCESS_VERSION) { 189 panic("Console version mismatch. Console expects %d. has %d \n", 190 ALPHA_ACCESS_VERSION,simosConf.version); 191 } 192 193 194 /* 195 * setup arguments to kernel 196 */ 197 unixBoot(1,argc,argv); 198 199 x = *(volatile int *)(K1BASE-4); 200 while(1) continue; 201 return x; 202} 203 204/* 205 * BOOTING 206 */ 207struct rpb xxm_rpb = { 208 NULL, /* 000: physical self-reference */ 209 ((long)'H') | (((long)'W') << 8) | (((long)'R') << 16) | 210 ((long)'P' << 24) | (((long)'B') << 32), /* 008: contains string "HWRPB" */ 211 6, /* 010: HWRPB version number */ 212 /* the byte count is wrong, but who needs it? - lance */ 213 0, /* 018: bytes in RPB perCPU CTB CRB MEDSC */ 214 0, /* 020: primary cpu id */ 215 8192, /* 028: page size in bytes */ 216 43, /* 030: number of phys addr bits */ 217 127, /* 038: max valid ASN */ 218 {'0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1'}, /* 040: system serial num: 10 ascii chars */ 219#ifdef undef 220/* To be legitimate, the following system type and variation are correct for the XXM. 221 But there are too many #ifdefs etc to deal with in Unix, so we tell the kernel 222 that we're an Avanti, which is similar enough. 223 */ 224 31, /* 050: system type - XXM is now in the Alpha SRM */ 225 (1 << 10) | (2<<1),/* 058: system variation - XXM w/EV5 & embeded console */ 226#endif 227#if 0 228 0x12, /* 050: system type - masquarade as some random 21064 */ 229#endif 230 0, /* OVERRIDDEN */ 231 (1<<10), /* 058: system variation OVERRIDDEN */ 232 'c'|('o'<<8)|('o'<<16)|('l'<< 24), /* 060: system revision */ 233 1024*4096, /* 068: scaled interval clock intr freq OVERRIDEN*/ 234 0, /* 070: cycle counter frequency */ 235 0x200000000, /* 078: virtual page table base */ 236 0, /* 080: reserved */ 237 0, /* 088: offset to translation buffer hint */ 238 1, /* 090: number of processor slots OVERRIDDEN*/ 239 sizeof(struct rpb_percpu), /* 098: per-cpu slot size. OVERRIDDEN */ 240 0, /* 0A0: offset to per_cpu slots */ 241 1, /* 0A8: number of CTBs */ 242#ifdef bugnion_gone 243 sizeof(struct rpb_ctb), /* 0B0: bytes in largest CTB */ 244#else 245 sizeof(struct ctb_tt), 246#endif 247 0, /* 0B8: offset to CTB (cons term block) */ 248 0, /* 0C0: offset to CRB (cons routine block) */ 249 0, /* 0C8: offset to memory descriptor table */ 250 0, /* 0D0: offset to config data block */ 251 0, /* 0D8: offset to FRU table */ 252 0, /* 0E0: virt addr of save term routine */ 253 0, /* 0E8: proc value for save term routine */ 254 0, /* 0F0: virt addr of restore term routine */ 255 0, /* 0F8: proc value for restore term routine */ 256 0, /* 100: virt addr of CPU restart routine */ 257 0, /* 108: proc value for CPU restart routine */ 258 0, /* 110: used to determine presence of kdebug */ 259 0, /* 118: reserved for hardware */ 260/* the checksum is wrong, but who needs it? - lance */ 261 0, /* 120: checksum of prior entries in rpb */ 262 0, /* 128: receive ready bitmask */ 263 0, /* 130: transmit ready bitmask */ 264 0, /* 138: Dynamic System Recog. offset */ 265}; 266 267ul xxm_tbb[] = { 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 268 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e, 0x1e1e1e1e1e1e1e1e}; 269 270struct rpb_percpu xxm_rpb_percpu = { 271 {0,0,0,0,0,0,1,{0,0},{0,0,0,0,0,0,0,0}}, /* 000: boot/restart HWPCB */ 272 (STATE_PA | STATE_PP | STATE_CV | STATE_PV | STATE_PMV | STATE_PL), /* 080: per-cpu state bits */ 273 0xc000, /* 088: palcode memory length */ 274 0x2000, /* 090: palcode scratch length */ 275 0x4000, /* 098: phys addr of palcode mem space */ 276 0x2000, /* 0A0: phys addr of palcode scratch space */ 277 (2 << 16) | (5 << 8) | 1, /* 0A8: PALcode rev required */ 278 11 | (2L << 32), /* 0B0: processor type */ 279 7, /* 0B8: processor variation */ 280 'M'|('5'<<8)|('A'<<16)|('0'<<24), /* 0C0: processor revision */ 281 {'M','5','/','A','l','p','h','a','0','0','0','0','0','0','0','0'}, /* 0C8: proc serial num: 10 ascii chars */ 282 0, /* 0D8: phys addr of logout area */ 283 0, /* 0E0: length in bytes of logout area */ 284 0, /* 0E8: halt pcb base */ 285 0, /* 0F0: halt pc */ 286 0, /* 0F8: halt ps */ 287 0, /* 100: halt arg list (R25) */ 288 0, /* 108: halt return address (R26) */ 289 0, /* 110: halt procedure value (R27) */ 290 0, /* 118: reason for halt */ 291 0, /* 120: for software */ 292 {0}, /* 128: inter-console communications buffer */ 293 {1,0,5,0,0,0,0,0,0,0,0,0,0,0,0,0}, /* 1D0: PALcode revs available */ 294 0 /* 250: reserved for arch use */ 295/* the dump stack grows from the end of the rpb page not to reach here */ 296}; 297 298struct _xxm_rpb_mdt { 299 long rpb_checksum; /* 000: checksum of entire mem desc table */ 300 long rpb_impaddr; /* 008: PA of implementation dep info */ 301 long rpb_numcl; /* 010: number of clusters */ 302 struct rpb_cluster rpb_cluster[3]; /* first instance of a cluster */ 303}; 304 305struct _xxm_rpb_mdt xxm_rpb_mdt = { 306 0, /* 000: checksum of entire mem desc table */ 307 0, /* 008: PA of implementation dep info */ 308 0, /* 010: number of clusters */ 309 {{ 0, /* 000: starting PFN of this cluster */ 310 0, /* 008: count of PFNs in this cluster */ 311 0, /* 010: count of tested PFNs in cluster */ 312 0, /* 018: va of bitmap */ 313 0, /* 020: pa of bitmap */ 314 0, /* 028: checksum of bitmap */ 315 1 /* 030: usage of cluster */ 316 }, 317 { 0, /* 000: starting PFN of this cluster */ 318 0, /* 008: count of PFNs in this cluster */ 319 0, /* 010: count of tested PFNs in cluster */ 320 0, /* 018: va of bitmap */ 321 0, /* 020: pa of bitmap */ 322 0, /* 028: checksum of bitmap */ 323 0 /* 030: usage of cluster */ 324 }, 325 { 0, /* 000: starting PFN of this cluster */ 326 0, /* 008: count of PFNs in this cluster */ 327 0, /* 010: count of tested PFNs in cluster */ 328 0, /* 018: va of bitmap */ 329 0, /* 020: pa of bitmap */ 330 0, /* 028: checksum of bitmap */ 331 0 /* 030: usage of cluster */ 332 }} 333}; 334 335/* constants for slotinfo bus_type subfield */ 336#define SLOTINFO_TC 0 337#define SLOTINFO_ISA 1 338#define SLOTINFO_EISA 2 339#define SLOTINFO_PCI 3 340 341struct rpb_ctb xxm_rpb_ctb = { 342 CONS_DZ, /* 000: console type */ 343 0, /* 008: console unit */ 344 0, /* 010: reserved */ 345 0 /* 018: byte length of device dep portion */ 346}; 347 348/* we don't do any fixup (aka relocate the console) - we hope */ 349struct rpb_crb xxm_rpb_crb = { 350 0, /* va of call-back dispatch rtn */ 351 0, /* pa of call-back dispatch rtn */ 352 0, /* va of call-back fixup rtn */ 353 0, /* pa of call-back fixup rtn */ 354 0, /* number of entries in phys/virt map */ 355 0 /* Number of pages to be mapped */ 356}; 357 358struct _rpb_name { 359 unsigned long length; 360 char name[16]; 361}; 362 363extern struct _rpb_name xxm_name; 364 365struct rpb_dsr xxm_rpb_dsr = { 366 0, 367 0, 368 0, 369}; 370 371struct _rpb_name xxm_name = { 372 16, 373 {'D','E','C',' ','S','R','C',' ','X','X','M',' ','D','G','C',0}, 374}; 375 376/* XXM has one LURT entry - 1050 is for workstations, 1100 is servers (and is needed for CXX) */ 377long xxm_lurt[10] = { 9, 12, -1, -1, -1, -1, -1, -1, 1100, 1100 }; 378 379ul unix_boot_mem; 380unsigned long bootadr; 381#if 0 382unsigned long aout_bss_addr, aout_bss_size, aout_entry, aout_text_start, aout_data_addr; 383#endif 384char **kargv; 385int kargc; 386ul free_pfn; 387struct rpb_percpu *rpb_percpu; 388 389 390#define MAX_CPUS 32 391 392ul bootStrapImpure[MAX_CPUS]; 393 394 395char *unix_boot_alloc(int pages) 396{ 397 char *ret = (char *) unix_boot_mem; 398 unix_boot_mem += (pages * 8192); 399 return ret; 400} 401 402ul *first = 0; 403ul *third_rpb = 0; 404ul *reservedFixup = 0; 405 406int strcpy(char *dst, char *src); 407 408struct rpb *rpb; 409 410unixBoot(int go, int argc, char **argv) 411{ 412 ul *second, *third_kernel, ptr, *tbb, size, *percpu_logout; 413 unsigned char *mdt_bitmap; 414 long *lp1, *lp2, sum; 415 int i, cl; 416 int kern_first_page; 417 int mem_size = simosConf.mem_size; 418 419 int mem_pages = mem_size / 8192, cons_pages; 420 ul kernel_bytes, ksp, kernel_end, *unix_kernel_stack, bss, ksp_bottom, ksp_top; 421 struct rpb_ctb *rpb_ctb; 422 struct ctb_tt *ctb_tt; 423 struct rpb_dsr *rpb_dsr; 424 struct rpb_crb *rpb_crb; 425 struct _xxm_rpb_mdt *rpb_mdt; 426 int *rpb_lurt; 427 char *rpb_name; 428 ul nextPtr; 429 430 printf_lock( "memsize %x pages %x \n",mem_size,mem_pages); 431 432 433 434#ifdef notnow 435 if (unixArgs()) return; 436#endif 437 438 /* Allocate: 439 * two pages for the HWRPB 440 * five page table pages: 441 * 1: First level page table 442 * 1: Second level page table 443 * 1: Third level page table for HWRPB 444 * 2: Third level page table for kernel (for up to 16MB) 445 * set up the page tables 446 * load the kernel at the physical address 0x230000 447 * build the HWRPB 448 * set up memory descriptor table to give up the 449 * physical memory between the end of the page 450 * tables and the start of the kernel 451 * enable kseg addressing 452 * jump to the kernel 453 */ 454 455 unix_boot_mem = ROUNDUP8K(&_end); 456 457 printf_lock("First free page after ROM 0x%x\n", unix_boot_mem); 458 459 rpb = (struct rpb *) unix_boot_alloc( HWRPB_PAGES); 460 461 mdt_bitmap = (unsigned char *) unix_boot_alloc(MDT_BITMAP_PAGES); 462 first = (ul *)unix_boot_alloc(1); 463 second = (ul *)unix_boot_alloc(1); 464 third_rpb = (ul *)unix_boot_alloc(1); 465 reservedFixup = (ul*) unix_boot_alloc(1); 466 third_kernel = (ul *)unix_boot_alloc(NUM_KERNEL_THIRD); 467 percpu_logout = (ul*)unix_boot_alloc(1); 468 469 470 cons_pages = KSEG_TO_PHYS(unix_boot_mem) / 8192; 471 472 /* Set up the page tables */ 473 bzero((char *)first, 8192); 474 bzero((char *)second, 8192); 475 bzero((char *)reservedFixup,8192); 476 bzero((char *)third_rpb, HWRPB_PAGES * 8192); 477 bzero((char *)third_kernel, 8192 * NUM_KERNEL_THIRD); 478 479 first[0] = KPTE(PFN(second)); 480 first[1] = KPTE(PFN(first)); /* Region 3 */ 481 482 second[SECOND(0x10000000)] = KPTE(PFN(third_rpb)); /* Region 0 */ 483 for (i=0;i<NUM_KERNEL_THIRD;i++) { 484 second[SECOND(0x20000000)+i] = KPTE(PFN(third_kernel)+i); /* Region 1 */ 485 } 486 second[SECOND(0x40000000)] = KPTE(PFN(second)); /* Region 2 */ 487 488 489 { 490 491 /* For some obscure reason, Dec Unix's database read 492 * from /etc/sysconfigtab is written to this fixed 493 * mapped memory location. Go figure, since it is 494 * not initialized by the console. Maybe it is 495 * to look at the database from the console 496 * after a boot/crash. 497 * 498 * Black magic to estimate the max size. SEGVs on overflow 499 * bugnion 500 */ 501 502#define DATABASE_BASE 0x20000000 503#ifdef not_not 504#define DATABASE_END 0x20230000 /* don't need all that */ 505#endif 506 507#define DATABASE_END 0x20020000 508 509 int i; 510 ul *dbPage = (ul*)unix_boot_alloc(1); 511 second[SECOND(DATABASE_BASE)] = KPTE(PFN(dbPage)); 512 for (i=DATABASE_BASE; i <DATABASE_END ; i+= 8096) { 513 ul *db = (ul*)unix_boot_alloc(1); 514 dbPage[THIRD(i)] = KPTE(PFN(db)); 515 } 516 } 517 518 /* Region 0 */ 519 /* Map the HWRPB */ 520 for (i = 0; i < HWRPB_PAGES; i++) third_rpb[i] = KPTE(PFN(rpb) + i); 521 522 /* Map the MDT bitmap table */ 523 for (i=0;i<MDT_BITMAP_PAGES;i++) { 524 third_rpb[HWRPB_PAGES+i] = KPTE(PFN(mdt_bitmap)+i); 525 } 526 527 /* Protect the PAL pages */ 528 for (i = 1; i < PFN(first); i++) third_rpb[HWRPB_PAGES + MDT_BITMAP_PAGES + i] = KPTE(i); 529 530 /* Set up third_kernel after it's loaded, when we know where it is */ 531 532#ifdef original__xxm 533 if (unixLoadKernel(AOUT_LOAD_ADDR, argv[1]) == -1) return; 534 aoutfixup(AOUT_LOAD_ADDR); 535#else 536 /* aoutfixup(simosConf.kernelFileHdr); */ 537#endif 538#if 0 539 bss = aout_bss_addr; 540 541 kern_first_page = (KSEG_TO_PHYS(aout_text_start) / 8192); 542 kernel_end = ksp_top = ROUNDUP8K(aout_bss_addr + aout_bss_size); 543 bootadr = aout_entry; 544#endif 545 546 kern_first_page = (KSEG_TO_PHYS(simosConf.kernStart)/8192); 547 kernel_end = ksp_top = ROUNDUP8K(simosConf.kernEnd); 548 bootadr = simosConf.entryPoint; 549 550 551 printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x l2reserv 0x%x\n", 552 rpb, first, second, third_rpb, third_kernel,reservedFixup); 553 if (kernel_end - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { 554 printf_lock("Kernel is more than 8MB 0x%x - 0x%x = 0x%x\n", 555 kernel_end, simosConf.kernStart, 556 kernel_end -simosConf.kernStart ); 557 panic("kernel too big\n"); 558 559 } 560 /* Map the kernel's pages into the third level of region 2 */ 561 562 for (ptr = simosConf.kernStart; ptr < kernel_end; ptr += 8192) { 563 564 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); 565 } 566 /* blow 2 pages of phys mem for guards since it maintains 1-to-1 mapping */ 567 ksp = ksp_top + (3 * 8192); 568 if (ksp - simosConf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { 569 printf_lock("Kernel stack pushd us over 8MB\n"); 570 panic("ksp too big\n"); 571 } 572 if (THIRD_XXX((ul)ksp_top) > NUM_KERNEL_THIRD * 1024) { 573 panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n"); 574 } 575 ptr = (ul) ksp_top; 576 bzero((char *)ptr, 8192 * 2); 577 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */ 578 ptr += 8192; 579 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */ 580 ptr += 8192; 581 third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); 582 ptr += 8192; 583 third_kernel[THIRD_XXX(ptr)] = 0; /* Stack Guard Page */ 584 585 /* put argv into the bottom of the stack - argv starts at 1 because 586 * the command thatr got us here (i.e. "unixboot) is in argv[0]. 587 */ 588 ksp -= 8; /* Back up one longword */ 589 ksp -= argc * sizeof(char *); /* Make room for argv */ 590 kargv = (char **) ksp; 591 for (i = 1; i < argc; i++) { /* Copy arguments to stack */ 592 ksp -= ((strlen(argv[i]) + 1) + 7) & ~0x7; 593 kargv[i-1] = (char *) ksp; 594 strcpy(kargv[i-1], argv[i]); 595 } 596 kargc = i - 1; 597 kargv[kargc] = NULL; /* just to be sure; doesn't seem to be used */ 598 ksp -= sizeof(char *); /* point above last arg for no real reason */ 599 600 free_pfn = PFN(ptr); 601 602 bcopy((char *)&xxm_rpb, (char *)rpb, sizeof(struct rpb)); 603 604 rpb->rpb_selfref = (struct rpb *) KSEG_TO_PHYS(rpb); 605 rpb->rpb_string = 0x0000004250525748; 606 607 tbb = (ul *) (((char *) rpb) + ROUNDUP8(sizeof(struct rpb))); 608 rpb->rpb_trans_off = (ul)tbb - (ul)rpb; 609 bcopy((char *)xxm_tbb, (char *)tbb, sizeof(xxm_tbb)); 610 611 612 /* 613 * rpb_counter. Use to determine timeouts in OS. 614 * XXX must be patched after a checkpoint restore (I guess) 615 */ 616 617 printf_lock("CPU Clock at %d MHz IntrClockFrequency=%d \n", simosConf.cpuClock,simosConf.intrClockFrequency); 618 rpb->rpb_counter = simosConf.cpuClock * 1000 * 1000; 619 620 /* 621 * By definition, the rpb_clock is scaled by 4096 (in hz) 622 */ 623 rpb->rpb_clock = simosConf.intrClockFrequency * 4096; 624 625 626 627 /* 628 * Per CPU Slots. Multiprocessor support. 629 */ 630 { 631 int i; 632 int size = ROUNDUP128(sizeof(struct rpb_percpu)); 633 634 printf_lock("Booting with %d processor(s) \n",simosConf.numCPUs); 635 636 rpb->rpb_numprocs = simosConf.numCPUs; 637 rpb->rpb_slotsize = size; 638 rpb_percpu = (struct rpb_percpu *) 639 ROUNDUP128(((ul) tbb) +(sizeof(xxm_tbb))); 640 641 rpb->rpb_percpu_off = (ul)rpb_percpu - (ul)rpb; 642 643 for (i=0;i<simosConf.numCPUs;i++) { 644 struct rpb_percpu *thisCPU = (struct rpb_percpu*) 645 ((ul)rpb_percpu + size*i); 646 647 bzero((char *)thisCPU, size); 648 bcopy((char *)&xxm_rpb_percpu, 649 (char *)thisCPU, 650 sizeof(struct rpb_percpu)); 651 652 thisCPU->rpb_pcb.rpb_ksp = ksp; 653 thisCPU->rpb_pcb.rpb_ptbr = PFN(first); 654 655 thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout); 656 thisCPU->rpb_logout_len = 8192; 657 658/* thisCPU->rpb_pcb.rpb_ptbr = PFN(second);*/ 659 660 printf_lock("KSP: 0x%x PTBR 0x%x\n", thisCPU->rpb_pcb.rpb_ksp, thisCPU->rpb_pcb.rpb_ptbr); 661 662 if (i) { 663 bootStrapImpure[i] = (ul)unix_boot_alloc(1); 664 } 665 666 } 667 668 nextPtr = (ul)rpb_percpu + size*simosConf.numCPUs; 669 } 670 671 /* 672 * Console Terminal Block 673 */ 674 675 676 rpb_ctb = (struct rpb_ctb *) nextPtr; 677 ctb_tt = (struct ctb_tt*) rpb_ctb; 678 679 rpb->rpb_ctb_off = ((ul)rpb_ctb) - (ul)rpb; 680 rpb->rpb_ctb_size = sizeof(struct rpb_ctb); 681 682 bzero((char *)rpb_ctb, sizeof(struct ctb_tt)); 683 684#ifdef original_xxm 685 if (tga_slot == -1) 686 rpb_ctb->rpb_type = CONS_DZ; 687 else { 688 rpb_ctb->rpb_type = CONS_GRPH; 689 rpb_ctb->rpb_unit = (SLOTINFO_PCI << 16) | (0 << 8) | tga_slot; 690 } 691#else 692 rpb_ctb->rpb_type = CONS_DZ; 693#endif 694 695 rpb_ctb->rpb_length = sizeof(ctb_tt)-sizeof(rpb_ctb); 696 697 /* 698 * uart initizliation 699 */ 700 ctb_tt->ctb_csr = 0; 701 ctb_tt->ctb_tivec = 0x6c0; /* matches tlaser pal code */ 702 ctb_tt->ctb_rivec = 0x680; /* matches tlaser pal code */ 703 ctb_tt->ctb_baud = 9600; 704 ctb_tt->ctb_put_sts = 0; 705 ctb_tt->ctb_get_sts = 0; 706 707 708 rpb_crb = (struct rpb_crb *) (((ul)rpb_ctb) + sizeof(struct ctb_tt)); 709 rpb->rpb_crb_off = ((ul)rpb_crb) - (ul)rpb; 710 711 bzero((char *)rpb_crb, sizeof(struct rpb_crb)); 712 /* 713 * console callback stuff (simos) 714 */ 715 716 rpb_crb->rpb_num = 1; 717 rpb_crb->rpb_mapped_pages = HWRPB_PAGES; 718 rpb_crb->rpb_map[0].rpb_virt = 0x10000000; 719 rpb_crb->rpb_map[0].rpb_phys = KSEG_TO_PHYS(((ul)rpb) & ~0x1fff); 720 rpb_crb->rpb_map[0].rpb_pgcount = HWRPB_PAGES; 721 722 723 printf_lock("Console Callback at 0x%x, fixup at 0x%x \n", 724 rpb_crb->rpb_va_disp, 725 rpb_crb->rpb_va_fixup ); 726 727 rpb_mdt = (struct _xxm_rpb_mdt *) (((ul)rpb_crb) + sizeof(struct rpb_crb)); 728 rpb->rpb_mdt_off = (ul)rpb_mdt - (ul)rpb; 729 bcopy((char *)&xxm_rpb_mdt, (char *)rpb_mdt, sizeof(struct _xxm_rpb_mdt)); 730 731 732 cl = 0; 733#ifdef undef 734 /* Until Digital Unix can handle it, account all pages below the kernel 735 * as "console" memory. */ 736 rpb_mdt->rpb_cluster[cl].rpb_pfncount = cons_pages; 737#endif 738 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page; 739 cl++; 740 741 rpb_mdt->rpb_cluster[cl].rpb_pfn = kern_first_page; 742 rpb_mdt->rpb_cluster[cl].rpb_pfncount = mem_pages - kern_first_page; 743 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount; 744 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap); 745 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192; 746 cl++; 747 748#ifdef undef 749 /* The stupid Unix kernel needs to have all mdt clusters in ascending 750 * order, and the last cluster is used to compute the top of memory. 751 * It can't make use of memory between the console and the kernel. 752 */ 753 rpb_mdt->rpb_cluster[cl].rpb_pfn = cons_pages; 754 rpb_mdt->rpb_cluster[cl].rpb_pfncount = kern_first_page - cons_pages; 755 rpb_mdt->rpb_cluster[cl].rpb_pfntested=rpb_mdt->rpb_cluster[cl].rpb_pfncount; 756 rpb_mdt->rpb_cluster[cl].rpb_pa = KSEG_TO_PHYS(mdt_bitmap); 757 rpb_mdt->rpb_cluster[cl].rpb_va = 0x10000000 + HWRPB_PAGES * 8192; 758 cl++; 759#endif 760 761 rpb_mdt->rpb_numcl = cl; 762 763 for (i = 0; i < cl; i++) 764 printf_lock("Memory cluster %d [%d - %d]\n", i, rpb_mdt->rpb_cluster[i].rpb_pfn, rpb_mdt->rpb_cluster[i].rpb_pfncount); 765 766 767 768 /* Checksum the rpb for good luck */ 769 sum = 0; 770 lp1 = (long *)&rpb_mdt->rpb_impaddr; 771 lp2 = (long *)&rpb_mdt->rpb_cluster[cl]; 772 while (lp1 < lp2) sum += *lp1++; 773 rpb_mdt->rpb_checksum = sum; 774 775 /* XXX should checksum the cluster descriptors */ 776 777 bzero((char *)mdt_bitmap, MDT_BITMAP_PAGES * 8192); 778 for (i = 0; i < mem_pages/8; i++) ((unsigned char *)mdt_bitmap)[i] = 0xff; 779 780 printf_lock("Initalizing mdt_bitmap addr 0x%x mem_pages %x \n", 781 (long)mdt_bitmap,(long)mem_pages); 782 783 xxm_rpb.rpb_config_off = 0; 784 xxm_rpb.rpb_fru_off = 0; 785 786 rpb_dsr = (struct rpb_dsr *) (((ul)rpb_mdt) + sizeof(struct _xxm_rpb_mdt)); 787 rpb->rpb_dsr_off = ((ul)rpb_dsr) - (ul)rpb; 788 bzero((char *)rpb_dsr, sizeof(struct rpb_dsr)); 789 rpb_dsr->rpb_smm = 1578; /* Official XXM SMM number as per SRM */ 790 rpb_dsr->rpb_smm = 1089; /* Official Alcor SMM number as per SRM */ 791 792 rpb_lurt = (int *) ROUNDUP8(((ul)rpb_dsr) + sizeof(struct rpb_dsr)); 793 rpb_dsr->rpb_lurt_off = ((ul) rpb_lurt) - (ul) rpb_dsr; 794 bcopy((char *)xxm_lurt, (char *)rpb_lurt, sizeof(xxm_lurt)); 795 796 rpb_name = (char *) ROUNDUP8(((ul)rpb_lurt) + sizeof(xxm_lurt)); 797 rpb_dsr->rpb_sysname_off = ((ul) rpb_name) - (ul) rpb_dsr; 798#define THENAME " M5/Alpha " 799 sum = sizeof(THENAME); 800 bcopy(THENAME, rpb_name, sum); 801 *(ul *)rpb_name = sizeof(THENAME); /* put in length field */ 802 803 /* calculate size of rpb */ 804 rpb->rpb_size = ((ul) &rpb_name[sum]) - (ul)rpb; 805 806 if (rpb->rpb_size > 8192*HWRPB_PAGES) { 807 panic("HWRPB_PAGES=%d too small for HWRPB !!! \n"); 808 } 809 810 811 { 812 ul *ptr = (ul*)((char*)rpb_dsr + sizeof(struct rpb_dsr )); 813 rpb_crb->rpb_pa_disp = KSEG_TO_PHYS(ptr); 814#if 0 815 rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr&(0x2000*HWRPB_PAGES-1)); 816#else 817 rpb_crb->rpb_va_disp = 0x10000000 + ((ul)ptr & 0x1fff); 818#endif 819 printf_lock("ConsoleDispatch at virt %x phys %x val %x\n", 820 rpb_crb->rpb_va_disp, 821 rpb_crb->rpb_pa_disp, 822 consoleCallback); 823 *ptr++ = 0; 824 *ptr++ = (ul) consoleCallback; 825 rpb_crb->rpb_pa_fixup = KSEG_TO_PHYS(ptr); 826#if 0 827 rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr& (0x2000*HWRPB_PAGES-1)); 828#else 829 rpb_crb->rpb_va_fixup = 0x10000000 + ((ul)ptr & 0x1fff); 830#endif 831 *ptr++ = 0; 832 *ptr++ = (ul) consoleFixup; 833 } 834 835 836 /* Checksum the rpb for good luck */ 837 sum = 0; 838 lp1 = (long *)rpb; 839 lp2 = &rpb->rpb_checksum; 840 while (lp1 < lp2) 841 sum += *lp1++; 842 *lp2 = sum; 843 844 845 /* 846 * MP bootstrap 847 */ 848 849 { 850 int i; 851 for (i=1;i<simosConf.numCPUs;i++) { 852 volatile struct AlphaAccess *k1Conf = (volatile struct AlphaAccess *) 853 (ALPHA_ACCESS_BASE); 854 printf_lock("Bootstraping CPU %d with sp=0x%x \n", 855 i,bootStrapImpure[i]); 856 k1Conf->bootStrapImpure = bootStrapImpure[i]; 857 k1Conf->bootStrapCPU = i; 858 } 859 } 860 861 /* 862 * Make sure that we are not stepping on the kernel 863 */ 864 if ((ul)unix_boot_mem >= (ul)simosConf.kernStart) { 865 panic("CONSOLE: too much memory. Smashing kernel \n"); 866 } else { 867 printf_lock("unix_boot_mem ends at %x \n",unix_boot_mem); 868 } 869 870 871#ifdef undef 872#define CSERVE_K_JTOKERN 0x18 873 cServe(bootadr, (ul) rpb_percpu, CSERVE_K_JTOKERN, free_pfn); 874#endif 875 876 if (go) JToKern(bootadr, rpb_percpu, free_pfn, kargc, kargv, NULL); 877} 878 879 880#if 0 881aoutfixup(char *p) 882{ 883 int i; 884 unsigned long rem, len, off, dst; 885 886 887 struct new_aouthdr *ao = (struct new_aouthdr *) &p[NEW_FILHSZ]; 888#if 0 889 struct scnhdr *s = (struct scnhdr *) &p[FILHSZ + AOUTHSZ]; 890 struct scnhdr *t, *d, *b; 891 printf("aoutfixup: %d sections \n",fh->f_nscns); 892#endif 893 894 895 aout_text_start = ((ul)ao->text_start_hi<<32) + ao->text_start; 896 aout_data_addr = ((ul)ao->data_start_hi<<32) + ao->data_start; 897 aout_bss_addr = ((ul)ao->bss_start_hi<<32) + ao->bss_start; 898 aout_bss_size = ((ul)ao->bsize_hi<<32) + ao->bsize; 899 aout_entry = ((ul)ao->entry_hi<<32) + ao->entry; 900 901 printf("_text 0x%16x %8d @ %08d\n", aout_text_start, ao->tsize,0 /* t->s_scnptr*/); 902 printf("_data 0x%16x %8d @ %08d\n", aout_data_addr, ao->dsize,0/* d->s_scnptr*/); 903 printf("_bss 0x%16x %8d\n", aout_bss_addr, ao->bsize); 904 printf("entry 0x%16x\n", aout_entry); 905#if 0 906 for (i = 0; i < fh->f_nscns; i++) { 907 printf("section %d %s \n",i,s[i].s_name); 908 if (!strcmp(s[i].s_name, ".text")) t = &s[i]; 909 else if (!strcmp(s[i].s_name, ".data")) d = &s[i]; 910 else if (!strcmp(s[i].s_name, ".bss")) b = &s[i]; 911 } 912 bcopy(&p[t->s_scnptr], (char *)ao->text_start, ao->tsize); 913 bcopy(&p[d->s_scnptr], (char *)ao->data_start, ao->dsize); 914#endif 915} 916#endif 917 918extern ui palJToKern[]; 919 920JToKern(bootadr, rpb_percpu, free_pfn, k_argc, k_argv, envp) 921char * bootadr; 922ul rpb_percpu; 923ul free_pfn; 924ul k_argc; 925char **k_argv; 926char **envp; 927{ 928 struct _kernel_params *kernel_params = (struct _kernel_params *) KSEG; 929 int i; 930 931 printf_lock("k_argc = %d ", k_argc); 932 for (i = 0; i < k_argc; i++) { 933 printf_lock("'%s' ", k_argv[i]); 934 } 935 printf_lock("\n"); 936 937/* rpb_percpu |= 0xfffffc0000000000;*/ 938 kernel_params->bootadr = bootadr; 939 kernel_params->rpb_percpu = KSEG_TO_PHYS(rpb_percpu); 940 kernel_params->free_pfn = free_pfn; 941 kernel_params->argc = k_argc; 942 kernel_params->argv = (ul)k_argv; 943 kernel_params->envp = (ul)envp; 944 printf_lock("jumping to kernel at 0x%x, (PCBB 0x%x pfn %d)\n", bootadr, rpb_percpu, free_pfn); 945 jToPal(KSEG_TO_PHYS((ul)palJToKern)); 946 printf_lock("returned from jToPal. Looping\n"); 947 while(1) continue; 948} 949 950 951void jToPal(ul bootadr) 952{ 953 cServe(bootadr, 0, CSERVE_K_JTOPAL); 954 955/* 956 * Make sure that floating point is enabled incase 957 * it was disabled by the user program. 958 */ 959 wrfen(1); 960} 961 962 963int strcpy(char *dst, char *src) 964{ 965 int i=0; 966 while(*src) { 967 *dst++ = *src++; 968 i++; 969 } 970 return i; 971} 972 973 974 975 976/* ***************************************** 977 * Console I/O 978 * ******************************************/ 979 980int numOpenDevices = 11; 981struct { 982 char name[128]; 983} deviceState[32]; 984 985#define BOOTDEVICE_NAME "SCSI 1 0 0 1 100 0" 986 987void 988DeviceOperation(long op, long channel, long count, long address, long block) 989{ 990 struct AlphaAccess *k1Conf = (struct AlphaAccess *) 991 (ALPHA_ACCESS_BASE); 992 993 long pAddr; 994 995#if 0 996 printf("Console::DeviceRead count=0x%x address=0x%x block=0x%x\n", 997 count,address,block); 998#endif 999 1000 if (strcmp(deviceState[channel].name, BOOTDEVICE_NAME )) { 1001 panic("DeviceRead: only implemented for root disk \n"); 1002 } 1003 pAddr = KSEG_TO_PHYS(address); 1004 if (pAddr + count > simosConf.mem_size) { 1005 panic("DeviceRead: request out of range \n"); 1006 } 1007 1008 k1Conf->diskCount = count; 1009 k1Conf->diskPAddr = pAddr; 1010 k1Conf->diskBlock = block; 1011 k1Conf->diskOperation = op; /* launch */ 1012} 1013 1014 1015 1016/* ************************************************************************* 1017 * SimoS Console callbacks 1018 * **************************************************/ 1019 1020/* AXP manual 2-31 */ 1021#define CONSCB_GETC 0x1 1022#define CONSCB_PUTS 0x2 1023#define CONSCB_RESET_TERM 0x3 1024#define CONSCB_SET_TERM_INT 0x4 1025#define CONSCB_SET_TERM_CTL 0x5 1026#define CONSCB_PROCESS_KEY 0x6 1027#define CONSCB_OPEN_CONSOLE 0x7 1028#define CONSCB_CLOSE_CONSOLE 0x8 1029 1030#define CONSCB_OPEN 0x10 1031#define CONSCB_CLOSE 0x11 1032#define CONSCB_READ 0x13 1033 1034#define CONSCB_GETENV 0x22 1035 1036/* AXP manual 2-26 */ 1037#define ENV_AUTO_ACTION 0X01 1038#define ENV_BOOT_DEV 0X02 1039#define ENV_BOOTDEF_DEV 0X03 1040#define ENV_BOOTED_DEV 0X04 1041#define ENV_BOOT_FILE 0X05 1042#define ENV_BOOTED_FILE 0X06 1043#define ENV_BOOT_OSFLAGS 0X07 1044#define ENV_BOOTED_OSFLAGS 0X08 1045#define ENV_BOOT_RESET 0X09 1046#define ENV_DUMP_DEV 0X0A 1047#define ENV_ENABLE_AUDIT 0X0B 1048#define ENV_LICENSE 0X0C 1049#define ENV_CHAR_SET 0X0D 1050#define ENV_LANGUAGE 0X0E 1051#define ENV_TTY_DEV 0X0F 1052#define ENV_SCSIID 0X42 1053#define ENV_SCSIFAST 0X43 1054#define ENV_COM1_BAUD 0X44 1055#define ENV_COM1_MODEM 0X45 1056#define ENV_COM1_FLOW 0X46 1057#define ENV_COM1_MISC 0X47 1058#define ENV_COM2_BAUD 0X48 1059#define ENV_COM2_MODEM 0X49 1060#define ENV_COM2_FLOW 0X4A 1061#define ENV_COM2_MISC 0X4B 1062#define ENV_PASSWORD 0X4C 1063#define ENV_SECURE 0X4D 1064#define ENV_LOGFAIL 0X4E 1065#define ENV_SRM2DEV_ID 0X4F 1066 1067#define MAX_ENVLEN 32 1068 1069char env_auto_action[MAX_ENVLEN] = "BOOT"; 1070char env_boot_dev[MAX_ENVLEN] = ""; 1071char env_bootdef_dev[MAX_ENVLEN] = ""; 1072char env_booted_dev[MAX_ENVLEN] = BOOTDEVICE_NAME; 1073char env_boot_file[MAX_ENVLEN] = ""; 1074char env_booted_file[MAX_ENVLEN] = ""; 1075char env_boot_osflags[MAX_ENVLEN] = ""; 1076char env_booted_osflags[MAX_ENVLEN] = ""; 1077char env_boot_reset[MAX_ENVLEN] = ""; 1078char env_dump_dev[MAX_ENVLEN] = ""; 1079char env_enable_audit[MAX_ENVLEN] = ""; 1080char env_license[MAX_ENVLEN] = ""; 1081char env_char_set[MAX_ENVLEN] = ""; 1082char env_language[MAX_ENVLEN] = ""; 1083char env_tty_dev[MAX_ENVLEN] = "0"; 1084char env_scsiid[MAX_ENVLEN] = ""; 1085char env_scsifast[MAX_ENVLEN] = ""; 1086char env_com1_baud[MAX_ENVLEN] = ""; 1087char env_com1_modem[MAX_ENVLEN] = ""; 1088char env_com1_flow[MAX_ENVLEN] = ""; 1089char env_com1_misc[MAX_ENVLEN] = ""; 1090char env_com2_baud[MAX_ENVLEN] = ""; 1091char env_com2_modem[MAX_ENVLEN] = ""; 1092char env_com2_flow[MAX_ENVLEN] = ""; 1093char env_com2_misc[MAX_ENVLEN] = ""; 1094char env_password[MAX_ENVLEN] = ""; 1095char env_secure[MAX_ENVLEN] = ""; 1096char env_logfail[MAX_ENVLEN] = ""; 1097char env_srm2dev_id[MAX_ENVLEN] = ""; 1098 1099#define MAX_ENV_INDEX 100 1100char *env_ptr[MAX_ENV_INDEX] = 1101{ 1102 0, /* 0x00 */ 1103 env_auto_action, /* 0x01 */ 1104 env_boot_dev, /* 0x02 */ 1105 env_bootdef_dev, /* 0x03 */ 1106 env_booted_dev, /* 0x04 */ 1107 env_boot_file, /* 0x05 */ 1108 env_booted_file, /* 0x06 */ 1109 env_boot_osflags, /* 0x07 */ 1110 env_booted_osflags, /* 0x08 */ 1111 env_boot_reset, /* 0x09 */ 1112 env_dump_dev, /* 0x0A */ 1113 env_enable_audit, /* 0x0B */ 1114 env_license, /* 0x0C */ 1115 env_char_set, /* 0x0D */ 1116 (char *)&env_language, /* 0x0E */ 1117 env_tty_dev, /* 0x0F */ 1118 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x10 - 0x1F */ 1119 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x20 - 0x2F */ 1120 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x30 - 0x3F */ 1121 0, /* 0x40 */ 1122 0, /* 0x41 */ 1123 env_scsiid, /* 0x42 */ 1124 env_scsifast, /* 0x43 */ 1125 env_com1_baud, /* 0x44 */ 1126 env_com1_modem, /* 0x45 */ 1127 env_com1_flow, /* 0x46 */ 1128 env_com1_misc, /* 0x47 */ 1129 env_com2_baud, /* 0x48 */ 1130 env_com2_modem, /* 0x49 */ 1131 env_com2_flow, /* 0x4A */ 1132 env_com2_misc, /* 0x4B */ 1133 env_password, /* 0x4C */ 1134 env_secure, /* 0x4D */ 1135 env_logfail, /* 0x4E */ 1136 env_srm2dev_id, /* 0x4F */ 1137 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, /* 0x50 - 0x5F */ 1138 0, /* 0x60 */ 1139 0, /* 0x61 */ 1140 0, /* 0x62 */ 1141 0, /* 0x63 */ 1142}; 1143 1144long 1145CallBackDispatcher(long a0, long a1, long a2, long a3, long a4) 1146{ 1147 long i; 1148 switch (a0) { 1149 case CONSCB_GETC: 1150 return GetChar(); 1151 1152 case CONSCB_PUTS: 1153 for(i = 0; i < a3; i++) 1154 PutChar(*((char *)a2+i)); 1155 return a3; 1156 1157 case CONSCB_GETENV: 1158 if (a1 >= 0 && a1 < MAX_ENV_INDEX && env_ptr[a1] != 0 && *env_ptr[a1]) { 1159 i = strcpy((char*)a2, env_ptr[a1]); 1160 } else { 1161 strcpy((char*)a2, ""); 1162 i = (long)0xc000000000000000; 1163 if (a1 >= 0 && a1 < MAX_ENV_INDEX) 1164 printf_lock("GETENV unsupported option %d (0x%x)\n", a1, a1); 1165 else 1166 printf_lock("GETENV unsupported option %s\n", a1); 1167 } 1168 1169 if (i > a3) 1170 panic("CONSCB_GETENV overwrote buffer\n"); 1171 return i; 1172 1173 case CONSCB_OPEN: 1174 bcopy((char*)a1,deviceState[numOpenDevices].name,a2); 1175 deviceState[numOpenDevices].name[a2] = '\0'; 1176 printf_lock("CONSOLE OPEN : %s --> success \n", 1177 deviceState[numOpenDevices].name); 1178 return numOpenDevices++; 1179 1180 case CONSCB_READ: 1181 DeviceOperation(a0,a1,a2,a3,a4); 1182 break; 1183 1184 case CONSCB_CLOSE: 1185 break; 1186 case CONSCB_OPEN_CONSOLE: 1187 printf_lock("CONSOLE OPEN\n"); 1188 return 0; /* success */ 1189 break; /* not rearched */ 1190 case CONSCB_CLOSE_CONSOLE: 1191 printf_lock("CONSOLE CLOSE\n"); 1192 return 0; /* success */ 1193 break; /* not reached */ 1194 1195 default: 1196 panic("cher (%x,%x,%x,%x)\n", a0, a1, a2, a3); 1197 } 1198 1199 return 0; 1200} 1201 1202long CallBackFixup(int a0, int a1, int a2) 1203{ 1204 long temp; 1205 /* Linux uses r8 for the current pointer (pointer to data structure 1206 contating info about currently running process). It is set when the 1207 kernel starts and is expected to remain there... Problem is that the 1208 unlike the kernel, the console does not prevent the assembler from 1209 using r8. So here is a work around. So far this has only been a problem 1210 in CallBackFixup() but any other call back functions could cause a problem 1211 at some point */ 1212 1213 /* save off the current pointer to a temp variable */ 1214 asm("bis $8, $31, %0" : "=r" (temp)); 1215 1216 /* call original code */ 1217 printf_lock("CallbackFixup %x %x, t7=%x\n",a0,a1,temp); 1218 1219 /* restore the current pointer */ 1220 asm("bis %0, $31, $8" : : "r" (temp) : "$8"); 1221 1222#if 0 1223 if (first[FIRST(a1)]==0) { 1224 first[FIRST(a1)] = KPTE(PFN(reservedFixup)); 1225 } else { 1226 panic("CallBakcfixup\n"); 1227 } 1228 second[SECOND(a1)] = KPTE(PFN(third_rpb)); /* Region 0 */ 1229 printf("Fixup: FISRT(a1)=0x%x SECOND(a1)=0x%x THIRD(a1)=0x%x\n", 1230 FIRST(a1),SECOND(a1),THIRD(a1)); 1231 1232#endif 1233 return 0; 1234} 1235 1236 1237 1238 1239 1240void SlaveCmd(int cpu, struct rpb_percpu *my_rpb) 1241{ 1242/* extern void palJToSlave[]; */ 1243 extern unsigned int palJToSlave[]; 1244 1245 printf_lock("Slave CPU %d console command %s", cpu,my_rpb->rpb_iccb.iccb_rxbuf); 1246 1247 my_rpb->rpb_state |= STATE_BIP; 1248 my_rpb->rpb_state &= ~STATE_RC; 1249 1250 printf_lock("SlaveCmd: restart %x %x vptb %x my_rpb %x my_rpb_phys %x\n", 1251 rpb->rpb_restart, 1252 rpb->rpb_restart_pv, 1253 rpb->rpb_vptb, my_rpb, 1254 KSEG_TO_PHYS(my_rpb)); 1255 1256 cServe(KSEG_TO_PHYS((ul)palJToSlave), 1257 (ul)rpb->rpb_restart, 1258 CSERVE_K_JTOPAL, 1259 rpb->rpb_restart_pv, 1260 rpb->rpb_vptb, 1261 KSEG_TO_PHYS(my_rpb)); 1262 1263 panic("SlaveCmd returned \n"); 1264} 1265 1266void SlaveLoop( int cpu) 1267{ 1268 int size = ROUNDUP128(sizeof(struct rpb_percpu)); 1269 struct rpb_percpu *my_rpb = (struct rpb_percpu*) 1270 ((ul)rpb_percpu + size*cpu); 1271 1272 if (cpu==0) { 1273 panic("CPU�0 entering slaveLoop. Reenetering the console. HOSED \n"); 1274 } else { 1275 printf_lock("Entering slaveloop for cpu %d my_rpb=%x \n",cpu,my_rpb); 1276 } 1277 1278 // swap the processors context to the one in the 1279 // rpb_percpu struct very carefully (i.e. no stack usage) 1280 // so that linux knows which processor ends up in __smp_callin 1281 // and we don't trash any data is the process 1282 SlaveSpin(cpu,my_rpb,&my_rpb->rpb_iccb.iccb_rxlen); 1283} 1284