1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/time.h> 30 #include <sys/cpuvar.h> 31 #include <sys/dditypes.h> 32 #include <sys/ddipropdefs.h> 33 #include <sys/ddi_impldefs.h> 34 #include <sys/sunddi.h> 35 #include <sys/esunddi.h> 36 #include <sys/sunndi.h> 37 #include <sys/platform_module.h> 38 #include <sys/errno.h> 39 #include <sys/conf.h> 40 #include <sys/modctl.h> 41 #include <sys/promif.h> 42 #include <sys/promimpl.h> 43 #include <sys/prom_plat.h> 44 #include <sys/cmn_err.h> 45 #include <sys/sysmacros.h> 46 #include <sys/mem_cage.h> 47 #include <sys/kobj.h> 48 #include <sys/utsname.h> 49 #include <sys/cpu_sgnblk_defs.h> 50 #include <sys/atomic.h> 51 #include <sys/kdi_impl.h> 52 53 #include <sys/sgsbbc.h> 54 #include <sys/sgsbbc_iosram.h> 55 #include <sys/sgsbbc_iosram_priv.h> 56 #include <sys/sgsbbc_mailbox.h> 57 #include <sys/sgsgn.h> 58 #include <sys/sgcn.h> 59 #include <sys/serengeti.h> 60 #include <sys/sgfrutypes.h> 61 #include <sys/machsystm.h> 62 #include <sys/sbd_ioctl.h> 63 #include <sys/sbd.h> 64 #include <sys/sbdp_mem.h> 65 66 #include <sys/memnode.h> 67 #include <vm/vm_dep.h> 68 #include <vm/page.h> 69 70 #include <sys/cheetahregs.h> 71 #include <sys/plat_ecc_unum.h> 72 #include <sys/plat_ecc_dimm.h> 73 74 #include <sys/lgrp.h> 75 76 static int sg_debug = 0; 77 78 #ifdef DEBUG 79 #define DCMNERR if (sg_debug) cmn_err 80 #else 81 #define DCMNERR 82 #endif 83 84 int (*p2get_mem_unum)(int, uint64_t, char *, int, int *); 85 86 /* local functions */ 87 static void cpu_sgn_update(ushort_t sgn, uchar_t state, 88 uchar_t sub_state, int cpuid); 89 90 91 /* 92 * Local data. 93 * 94 * iosram_write_ptr is a pointer to iosram_write(). Because of 95 * kernel dynamic linking, we can't get to the function by name, 96 * but we can look up its address, and store it in this variable 97 * instead. 98 * 99 * We include the extern for iosram_write() here not because we call 100 * it, but to force compilation errors if its prototype doesn't 101 * match the prototype of iosram_write_ptr. 102 * 103 * The same issues apply to iosram_read() and iosram_read_ptr. 104 */ 105 /*CSTYLED*/ 106 extern int iosram_write (int, uint32_t, caddr_t, uint32_t); 107 static int (*iosram_write_ptr)(int, uint32_t, caddr_t, uint32_t) = NULL; 108 /*CSTYLED*/ 109 extern int iosram_read (int, uint32_t, caddr_t, uint32_t); 110 static int (*iosram_read_ptr)(int, uint32_t, caddr_t, uint32_t) = NULL; 111 112 113 /* 114 * Variable to indicate if the date should be obtained from the SC or not. 115 */ 116 int todsg_use_sc = FALSE; /* set the false at the beginning */ 117 118 /* 119 * Preallocation of spare tsb's for DR 120 * 121 * We don't allocate spares for Wildcat since TSBs should come 122 * out of memory local to the node. 123 */ 124 #define IOMMU_PER_SCHIZO 2 125 int serengeti_tsb_spares = (SG_MAX_IO_BDS * SG_SCHIZO_PER_IO_BD * 126 IOMMU_PER_SCHIZO); 127 128 /* 129 * sg_max_ncpus is the maximum number of CPUs supported on Serengeti. 130 * sg_max_ncpus is set to be smaller than NCPU to reduce the amount of 131 * memory the logs take up until we have a dynamic log memory allocation 132 * solution. 133 */ 134 int sg_max_ncpus = (24 * 2); /* (max # of processors * # of cores/proc) */ 135 136 /* 137 * variables to control mailbox message timeouts. 138 * These can be patched via /etc/system or mdb. 139 */ 140 int sbbc_mbox_default_timeout = MBOX_DEFAULT_TIMEOUT; 141 int sbbc_mbox_min_timeout = MBOX_MIN_TIMEOUT; 142 143 /* cached 'chosen' node_id */ 144 pnode_t chosen_nodeid = (pnode_t)0; 145 146 static void (*sg_ecc_taskq_func)(sbbc_ecc_mbox_t *) = NULL; 147 static int (*sg_ecc_mbox_func)(sbbc_ecc_mbox_t *) = NULL; 148 149 /* 150 * Table that maps memory slices to a specific memnode. 151 */ 152 int slice_to_memnode[SG_MAX_SLICE]; 153 154 plat_dimm_sid_board_t domain_dimm_sids[SG_MAX_CPU_BDS]; 155 156 157 int 158 set_platform_tsb_spares() 159 { 160 return (MIN(serengeti_tsb_spares, MAX_UPA)); 161 } 162 163 #pragma weak mmu_init_large_pages 164 165 void 166 set_platform_defaults(void) 167 { 168 extern int watchdog_enable; 169 extern uint64_t xc_tick_limit_scale; 170 extern void mmu_init_large_pages(size_t); 171 172 #ifdef DEBUG 173 char *todsg_name = "todsg"; 174 ce_verbose_memory = 2; 175 ce_verbose_other = 2; 176 #endif /* DEBUG */ 177 178 watchdog_enable = TRUE; 179 watchdog_available = TRUE; 180 181 cpu_sgn_func = cpu_sgn_update; 182 183 #ifdef DEBUG 184 /* tod_module_name should be set to "todsg" from OBP property */ 185 if (tod_module_name && (strcmp(tod_module_name, todsg_name) == 0)) 186 prom_printf("Using todsg driver\n"); 187 else { 188 prom_printf("Force using todsg driver\n"); 189 tod_module_name = todsg_name; 190 } 191 #endif /* DEBUG */ 192 193 /* Serengeti does not support forthdebug */ 194 forthdebug_supported = 0; 195 196 197 /* 198 * Some DR operations require the system to be sync paused. 199 * Sync pause on Serengeti could potentially take up to 4 200 * seconds to complete depending on the load on the SC. To 201 * avoid send_mond panics during such operations, we need to 202 * increase xc_tick_limit to a larger value on Serengeti by 203 * setting xc_tick_limit_scale to 5. 204 */ 205 xc_tick_limit_scale = 5; 206 207 if ((mmu_page_sizes == max_mmu_page_sizes) && 208 (mmu_ism_pagesize != DEFAULT_ISM_PAGESIZE)) { 209 if (&mmu_init_large_pages) 210 mmu_init_large_pages(mmu_ism_pagesize); 211 } 212 } 213 214 void 215 load_platform_modules(void) 216 { 217 if (modload("misc", "pcihp") < 0) { 218 cmn_err(CE_NOTE, "pcihp driver failed to load"); 219 } 220 } 221 222 /*ARGSUSED*/ 223 int 224 plat_cpu_poweron(struct cpu *cp) 225 { 226 int (*serengeti_cpu_poweron)(struct cpu *) = NULL; 227 228 serengeti_cpu_poweron = 229 (int (*)(struct cpu *))modgetsymvalue("sbdp_cpu_poweron", 0); 230 231 if (serengeti_cpu_poweron == NULL) 232 return (ENOTSUP); 233 else 234 return ((serengeti_cpu_poweron)(cp)); 235 } 236 237 /*ARGSUSED*/ 238 int 239 plat_cpu_poweroff(struct cpu *cp) 240 { 241 int (*serengeti_cpu_poweroff)(struct cpu *) = NULL; 242 243 serengeti_cpu_poweroff = 244 (int (*)(struct cpu *))modgetsymvalue("sbdp_cpu_poweroff", 0); 245 246 if (serengeti_cpu_poweroff == NULL) 247 return (ENOTSUP); 248 else 249 return ((serengeti_cpu_poweroff)(cp)); 250 } 251 252 #ifdef DEBUG 253 pgcnt_t serengeti_cage_size_limit; 254 #endif 255 256 /* Preferred minimum cage size (expressed in pages)... for DR */ 257 pgcnt_t serengeti_minimum_cage_size = 0; 258 259 void 260 set_platform_cage_params(void) 261 { 262 extern pgcnt_t total_pages; 263 extern struct memlist *phys_avail; 264 int ret; 265 266 if (kernel_cage_enable) { 267 pgcnt_t preferred_cage_size; 268 269 preferred_cage_size = 270 MAX(serengeti_minimum_cage_size, total_pages / 256); 271 #ifdef DEBUG 272 if (serengeti_cage_size_limit) 273 preferred_cage_size = serengeti_cage_size_limit; 274 #endif 275 kcage_range_lock(); 276 /* 277 * Post copies obp into the lowest slice. This requires the 278 * cage to grow upwards 279 */ 280 ret = kcage_range_init(phys_avail, 0); 281 if (ret == 0) 282 kcage_init(preferred_cage_size); 283 kcage_range_unlock(); 284 } 285 286 /* Only note when the cage is off since it should always be on. */ 287 if (!kcage_on) 288 cmn_err(CE_NOTE, "!DR Kernel Cage is DISABLED"); 289 } 290 291 #define ALIGN(x, a) ((a) == 0 ? (uint64_t)(x) : \ 292 (((uint64_t)(x) + (uint64_t)(a) - 1l) & ~((uint64_t)(a) - 1l))) 293 294 void 295 update_mem_bounds(int brd, uint64_t base, uint64_t sz) 296 { 297 uint64_t end; 298 int mnode; 299 300 end = base + sz - 1; 301 302 /* 303 * First see if this board already has a memnode associated 304 * with it. If not, see if this slice has a memnode. This 305 * covers the cases where a single slice covers multiple 306 * boards (cross-board interleaving) and where a single 307 * board has multiple slices (1+GB DIMMs). 308 */ 309 if ((mnode = plat_lgrphand_to_mem_node(brd)) == -1) { 310 if ((mnode = slice_to_memnode[PA_2_SLICE(base)]) == -1) 311 mnode = mem_node_alloc(); 312 plat_assign_lgrphand_to_mem_node(brd, mnode); 313 } 314 315 /* 316 * Align base at 16GB boundary 317 */ 318 base = ALIGN(base, (1ul << PA_SLICE_SHIFT)); 319 320 while (base < end) { 321 slice_to_memnode[PA_2_SLICE(base)] = mnode; 322 base += (1ul << PA_SLICE_SHIFT); 323 } 324 } 325 326 /* 327 * Dynamically detect memory slices in the system by decoding 328 * the cpu memory decoder registers at boot time. 329 */ 330 void 331 plat_fill_mc(pnode_t nodeid) 332 { 333 uint64_t mc_addr, mask; 334 uint64_t mc_decode[SG_MAX_BANKS_PER_MC]; 335 uint64_t base, size; 336 uint32_t regs[4]; 337 int len; 338 int local_mc; 339 int portid; 340 int boardid; 341 int i; 342 343 if ((prom_getprop(nodeid, "portid", (caddr_t)&portid) < 0) || 344 (portid == -1)) 345 return; 346 347 /* 348 * Decode the board number from the MC portid 349 */ 350 boardid = SG_PORTID_TO_BOARD_NUM(portid); 351 352 /* 353 * The "reg" property returns 4 32-bit values. The first two are 354 * combined to form a 64-bit address. The second two are for a 355 * 64-bit size, but we don't actually need to look at that value. 356 */ 357 len = prom_getproplen(nodeid, "reg"); 358 if (len != (sizeof (uint32_t) * 4)) { 359 prom_printf("Warning: malformed 'reg' property\n"); 360 return; 361 } 362 if (prom_getprop(nodeid, "reg", (caddr_t)regs) < 0) 363 return; 364 mc_addr = ((uint64_t)regs[0]) << 32; 365 mc_addr |= (uint64_t)regs[1]; 366 367 /* 368 * Figure out whether the memory controller we are examining 369 * belongs to this CPU or a different one. 370 */ 371 if (portid == cpunodes[CPU->cpu_id].portid) 372 local_mc = 1; 373 else 374 local_mc = 0; 375 376 for (i = 0; i < SG_MAX_BANKS_PER_MC; i++) { 377 mask = SG_REG_2_OFFSET(i); 378 379 /* 380 * If the memory controller is local to this CPU, we use 381 * the special ASI to read the decode registers. 382 * Otherwise, we load the values from a magic address in 383 * I/O space. 384 */ 385 if (local_mc) 386 mc_decode[i] = lddmcdecode(mask & MC_OFFSET_MASK); 387 else 388 mc_decode[i] = lddphysio((mc_addr | mask)); 389 390 if (mc_decode[i] >> MC_VALID_SHIFT) { 391 /* 392 * The memory decode register is a bitmask field, 393 * so we can decode that into both a base and 394 * a span. 395 */ 396 base = MC_BASE(mc_decode[i]) << PHYS2UM_SHIFT; 397 size = MC_UK2SPAN(mc_decode[i]); 398 update_mem_bounds(boardid, base, size); 399 } 400 } 401 } 402 403 /* 404 * This routine is run midway through the boot process. By the time we get 405 * here, we know about all the active CPU boards in the system, and we have 406 * extracted information about each board's memory from the memory 407 * controllers. We have also figured out which ranges of memory will be 408 * assigned to which memnodes, so we walk the slice table to build the table 409 * of memnodes. 410 */ 411 /* ARGSUSED */ 412 void 413 plat_build_mem_nodes(u_longlong_t *list, size_t nelems) 414 { 415 int slice; 416 pfn_t basepfn; 417 pgcnt_t npgs; 418 419 mem_node_pfn_shift = PFN_SLICE_SHIFT; 420 mem_node_physalign = (1ull << PA_SLICE_SHIFT); 421 422 for (slice = 0; slice < SG_MAX_SLICE; slice++) { 423 if (slice_to_memnode[slice] == -1) 424 continue; 425 basepfn = (uint64_t)slice << PFN_SLICE_SHIFT; 426 npgs = 1ull << PFN_SLICE_SHIFT; 427 mem_node_add_slice(basepfn, basepfn + npgs - 1); 428 } 429 } 430 431 int 432 plat_pfn_to_mem_node(pfn_t pfn) 433 { 434 int node; 435 436 node = slice_to_memnode[PFN_2_SLICE(pfn)]; 437 438 return (node); 439 } 440 441 /* 442 * Serengeti support for lgroups. 443 * 444 * On Serengeti, an lgroup platform handle == board number. 445 * 446 * Mappings between lgroup handles and memnodes are managed 447 * in addition to mappings between memory slices and memnodes 448 * to support cross-board interleaving as well as multiple 449 * slices per board (e.g. >1GB DIMMs). The initial mapping 450 * of memnodes to lgroup handles is determined at boot time. 451 * A DR addition of memory adds a new mapping. A DR copy-rename 452 * swaps mappings. 453 */ 454 455 /* 456 * Macro for extracting the board number from the CPU id 457 */ 458 #define CPUID_TO_BOARD(id) (((id) >> 2) & 0x7) 459 460 /* 461 * Return the platform handle for the lgroup containing the given CPU 462 * 463 * For Serengeti, lgroup platform handle == board number 464 */ 465 lgrp_handle_t 466 plat_lgrp_cpu_to_hand(processorid_t id) 467 { 468 return (CPUID_TO_BOARD(id)); 469 } 470 471 /* 472 * Platform specific lgroup initialization 473 */ 474 void 475 plat_lgrp_init(void) 476 { 477 int i; 478 extern uint32_t lgrp_expand_proc_thresh; 479 extern uint32_t lgrp_expand_proc_diff; 480 481 /* 482 * Initialize lookup tables to invalid values so we catch 483 * any illegal use of them. 484 */ 485 for (i = 0; i < SG_MAX_SLICE; i++) { 486 slice_to_memnode[i] = -1; 487 } 488 489 /* 490 * Set tuneables for Serengeti architecture 491 * 492 * lgrp_expand_proc_thresh is the minimum load on the lgroups 493 * this process is currently running on before considering 494 * expanding threads to another lgroup. 495 * 496 * lgrp_expand_proc_diff determines how much less the remote lgroup 497 * must be loaded before expanding to it. 498 * 499 * Bandwidth is maximized on Serengeti by spreading load across 500 * the machine. The impact to inter-thread communication isn't 501 * too costly since remote latencies are relatively low. These 502 * values equate to one CPU's load and so attempt to spread the 503 * load out across as many lgroups as possible one CPU at a time. 504 */ 505 lgrp_expand_proc_thresh = LGRP_LOADAVG_THREAD_MAX; 506 lgrp_expand_proc_diff = LGRP_LOADAVG_THREAD_MAX; 507 } 508 509 /* 510 * Platform notification of lgroup (re)configuration changes 511 */ 512 /*ARGSUSED*/ 513 void 514 plat_lgrp_config(lgrp_config_flag_t evt, uintptr_t arg) 515 { 516 update_membounds_t *umb; 517 lgrp_config_mem_rename_t lmr; 518 lgrp_handle_t shand, thand; 519 int snode, tnode; 520 521 switch (evt) { 522 523 case LGRP_CONFIG_MEM_ADD: 524 umb = (update_membounds_t *)arg; 525 update_mem_bounds(umb->u_board, umb->u_base, umb->u_len); 526 527 break; 528 529 case LGRP_CONFIG_MEM_DEL: 530 /* We don't have to do anything */ 531 break; 532 533 case LGRP_CONFIG_MEM_RENAME: 534 /* 535 * During a DR copy-rename operation, all of the memory 536 * on one board is moved to another board -- but the 537 * addresses/pfns and memnodes don't change. This means 538 * the memory has changed locations without changing identity. 539 * 540 * Source is where we are copying from and target is where we 541 * are copying to. After source memnode is copied to target 542 * memnode, the physical addresses of the target memnode are 543 * renamed to match what the source memnode had. Then target 544 * memnode can be removed and source memnode can take its 545 * place. 546 * 547 * To do this, swap the lgroup handle to memnode mappings for 548 * the boards, so target lgroup will have source memnode and 549 * source lgroup will have empty target memnode which is where 550 * its memory will go (if any is added to it later). 551 * 552 * Then source memnode needs to be removed from its lgroup 553 * and added to the target lgroup where the memory was living 554 * but under a different name/memnode. The memory was in the 555 * target memnode and now lives in the source memnode with 556 * different physical addresses even though it is the same 557 * memory. 558 */ 559 shand = arg & 0xffff; 560 thand = (arg & 0xffff0000) >> 16; 561 snode = plat_lgrphand_to_mem_node(shand); 562 tnode = plat_lgrphand_to_mem_node(thand); 563 564 plat_assign_lgrphand_to_mem_node(thand, snode); 565 plat_assign_lgrphand_to_mem_node(shand, tnode); 566 567 /* 568 * Remove source memnode of copy rename from its lgroup 569 * and add it to its new target lgroup 570 */ 571 lmr.lmem_rename_from = shand; 572 lmr.lmem_rename_to = thand; 573 574 lgrp_config(LGRP_CONFIG_MEM_RENAME, (uintptr_t)snode, 575 (uintptr_t)&lmr); 576 577 break; 578 579 default: 580 break; 581 } 582 } 583 584 /* 585 * Return latency between "from" and "to" lgroups 586 * 587 * This latency number can only be used for relative comparison 588 * between lgroups on the running system, cannot be used across platforms, 589 * and may not reflect the actual latency. It is platform and implementation 590 * specific, so platform gets to decide its value. It would be nice if the 591 * number was at least proportional to make comparisons more meaningful though. 592 * NOTE: The numbers below are supposed to be load latencies for uncached 593 * memory divided by 10. 594 */ 595 int 596 plat_lgrp_latency(lgrp_handle_t from, lgrp_handle_t to) 597 { 598 /* 599 * Return min remote latency when there are more than two lgroups 600 * (root and child) and getting latency between two different lgroups 601 * or root is involved 602 */ 603 if (lgrp_optimizations() && (from != to || 604 from == LGRP_DEFAULT_HANDLE || to == LGRP_DEFAULT_HANDLE)) 605 return (28); 606 else 607 return (23); 608 } 609 610 /* ARGSUSED */ 611 void 612 plat_freelist_process(int mnode) 613 { 614 } 615 616 /* 617 * Find dip for chosen IOSRAM 618 */ 619 dev_info_t * 620 find_chosen_dip(void) 621 { 622 dev_info_t *dip; 623 char master_sbbc[MAXNAMELEN]; 624 pnode_t nodeid; 625 uint_t tunnel; 626 627 /* 628 * find the /chosen SBBC node, prom interface will handle errors 629 */ 630 nodeid = prom_chosennode(); 631 632 /* 633 * get the 'iosram' property from the /chosen node 634 */ 635 if (prom_getprop(nodeid, IOSRAM_CHOSEN_PROP, (caddr_t)&tunnel) <= 0) { 636 SBBC_ERR(CE_PANIC, "No iosram property found! \n"); 637 } 638 639 if (prom_phandle_to_path((phandle_t)tunnel, master_sbbc, 640 sizeof (master_sbbc)) < 0) { 641 SBBC_ERR1(CE_PANIC, "prom_phandle_to_path(%d) failed\n", 642 tunnel); 643 } 644 645 chosen_nodeid = nodeid; 646 647 /* 648 * load and attach the sgsbbc driver. 649 * This will also attach all the sgsbbc driver instances 650 */ 651 if (i_ddi_attach_hw_nodes("sgsbbc") != DDI_SUCCESS) { 652 cmn_err(CE_WARN, "sgsbbc failed to load\n"); 653 } 654 655 /* translate a path name to a dev_info_t */ 656 dip = e_ddi_hold_devi_by_path(master_sbbc, 0); 657 if ((dip == NULL) || (ddi_get_nodeid(dip) != tunnel)) { 658 cmn_err(CE_PANIC, "i_ddi_path_to_devi(%x) failed for SBBC\n", 659 tunnel); 660 } 661 662 /* make sure devi_ref is ZERO */ 663 ndi_rele_devi(dip); 664 665 DCMNERR(CE_CONT, "Chosen IOSRAM is at %s \n", master_sbbc); 666 667 return (dip); 668 } 669 670 void 671 load_platform_drivers(void) 672 { 673 int ret; 674 675 /* 676 * Load and attach the mc-us3 memory driver. 677 */ 678 if (i_ddi_attach_hw_nodes("mc-us3") != DDI_SUCCESS) 679 cmn_err(CE_WARN, "mc-us3 failed to load"); 680 else 681 (void) ddi_hold_driver(ddi_name_to_major("mc-us3")); 682 683 /* 684 * Initialize the chosen IOSRAM before its clients 685 * are loaded. 686 */ 687 (void) find_chosen_dip(); 688 689 /* 690 * Ideally, we'd do this in set_platform_defaults(), but 691 * at that point it's too early to look up symbols. 692 */ 693 iosram_write_ptr = (int (*)(int, uint32_t, caddr_t, uint32_t)) 694 modgetsymvalue("iosram_write", 0); 695 696 if (iosram_write_ptr == NULL) { 697 DCMNERR(CE_WARN, "load_platform_defaults: iosram_write()" 698 " not found; signatures will not be updated\n"); 699 } else { 700 /* 701 * The iosram read ptr is only needed if we can actually 702 * write CPU signatures, so only bother setting it if we 703 * set a valid write pointer, above. 704 */ 705 iosram_read_ptr = (int (*)(int, uint32_t, caddr_t, uint32_t)) 706 modgetsymvalue("iosram_read", 0); 707 708 if (iosram_read_ptr == NULL) 709 DCMNERR(CE_WARN, "load_platform_defaults: iosram_read()" 710 " not found\n"); 711 } 712 713 /* 714 * Set todsg_use_sc to TRUE so that we will be getting date 715 * from the SC. 716 */ 717 todsg_use_sc = TRUE; 718 719 /* 720 * Now is a good time to activate hardware watchdog (if one exists). 721 */ 722 mutex_enter(&tod_lock); 723 if (watchdog_enable) 724 ret = tod_ops.tod_set_watchdog_timer(watchdog_timeout_seconds); 725 mutex_exit(&tod_lock); 726 if (ret != 0) 727 printf("Hardware watchdog enabled\n"); 728 729 /* 730 * Load and attach the schizo pci bus nexus driver. 731 */ 732 if (i_ddi_attach_hw_nodes("pcisch") != DDI_SUCCESS) 733 cmn_err(CE_WARN, "pcisch failed to load"); 734 735 plat_ecc_init(); 736 } 737 738 /* 739 * No platform drivers on this platform 740 */ 741 char *platform_module_list[] = { 742 (char *)0 743 }; 744 745 /*ARGSUSED*/ 746 void 747 plat_tod_fault(enum tod_fault_type tod_bad) 748 { 749 } 750 int 751 plat_max_boards() 752 { 753 return (SG_MAX_BDS); 754 } 755 int 756 plat_max_io_units_per_board() 757 { 758 return (SG_MAX_IO_PER_BD); 759 } 760 int 761 plat_max_cmp_units_per_board() 762 { 763 return (SG_MAX_CMPS_PER_BD); 764 } 765 int 766 plat_max_cpu_units_per_board() 767 { 768 return (SG_MAX_CPUS_PER_BD); 769 } 770 771 int 772 plat_max_mc_units_per_board() 773 { 774 return (SG_MAX_CMPS_PER_BD); /* each CPU die has a memory controller */ 775 } 776 777 int 778 plat_max_mem_units_per_board() 779 { 780 return (SG_MAX_MEM_PER_BD); 781 } 782 783 int 784 plat_max_cpumem_boards(void) 785 { 786 return (SG_MAX_CPU_BDS); 787 } 788 789 int 790 set_platform_max_ncpus(void) 791 { 792 return (sg_max_ncpus); 793 } 794 795 void 796 plat_dmv_params(uint_t *hwint, uint_t *swint) 797 { 798 *hwint = MAX_UPA; 799 *swint = 0; 800 } 801 802 /* 803 * Our nodename has been set, pass it along to the SC. 804 */ 805 void 806 plat_nodename_set(void) 807 { 808 sbbc_msg_t req; /* request */ 809 sbbc_msg_t resp; /* response */ 810 int rv; /* return value from call to mbox */ 811 struct nodename_info { 812 int32_t namelen; 813 char nodename[_SYS_NMLN]; 814 } nni; 815 int (*sg_mbox)(sbbc_msg_t *, sbbc_msg_t *, time_t) = NULL; 816 817 /* 818 * find the symbol for the mailbox routine 819 */ 820 sg_mbox = (int (*)(sbbc_msg_t *, sbbc_msg_t *, time_t)) 821 modgetsymvalue("sbbc_mbox_request_response", 0); 822 823 if (sg_mbox == NULL) { 824 cmn_err(CE_NOTE, "!plat_nodename_set: sg_mbox not found\n"); 825 return; 826 } 827 828 /* 829 * construct the message telling the SC our nodename 830 */ 831 (void) strcpy(nni.nodename, utsname.nodename); 832 nni.namelen = (int32_t)strlen(nni.nodename); 833 834 req.msg_type.type = INFO_MBOX; 835 req.msg_type.sub_type = INFO_MBOX_NODENAME; 836 req.msg_status = 0; 837 req.msg_len = (int)(nni.namelen + sizeof (nni.namelen)); 838 req.msg_bytes = 0; 839 req.msg_buf = (caddr_t)&nni; 840 req.msg_data[0] = 0; 841 req.msg_data[1] = 0; 842 843 /* 844 * initialize the response back from the SC 845 */ 846 resp.msg_type.type = INFO_MBOX; 847 resp.msg_type.sub_type = INFO_MBOX_NODENAME; 848 resp.msg_status = 0; 849 resp.msg_len = 0; 850 resp.msg_bytes = 0; 851 resp.msg_buf = (caddr_t)0; 852 resp.msg_data[0] = 0; 853 resp.msg_data[1] = 0; 854 855 /* 856 * ship it and check for success 857 */ 858 rv = (sg_mbox)(&req, &resp, sbbc_mbox_default_timeout); 859 860 if (rv != 0) { 861 cmn_err(CE_NOTE, "!plat_nodename_set: sg_mbox retval %d\n", rv); 862 } else if (resp.msg_status != 0) { 863 cmn_err(CE_NOTE, "!plat_nodename_set: msg_status %d\n", 864 resp.msg_status); 865 } else { 866 DCMNERR(CE_NOTE, "!plat_nodename_set was successful\n"); 867 868 /* 869 * It is necessary to exchange the capability bitmap 870 * with SC before sending any ecc error information and 871 * indictment. We are calling the plat_ecc_capability_send() 872 * here just after sending the nodename successfully. 873 */ 874 rv = plat_ecc_capability_send(); 875 if (rv == 0) { 876 DCMNERR(CE_NOTE, "!plat_ecc_capability_send was" 877 " successful\n"); 878 } 879 } 880 } 881 882 /* 883 * flag to allow users switch between using OBP's 884 * prom_get_unum() and mc-us3 driver's p2get_mem_unum() 885 * (for main memory errors only). 886 */ 887 int sg_use_prom_get_unum = 0; 888 889 /* 890 * Debugging flag: set to 1 to call into obp for get_unum, or set it to 0 891 * to call into the unum cache system. This is the E$ equivalent of 892 * sg_use_prom_get_unum. 893 */ 894 int sg_use_prom_ecache_unum = 0; 895 896 /* used for logging ECC errors to the SC */ 897 #define SG_MEMORY_ECC 1 898 #define SG_ECACHE_ECC 2 899 #define SG_UNKNOWN_ECC (-1) 900 901 /* 902 * plat_get_mem_unum() generates a string identifying either the 903 * memory or E$ DIMM(s) during error logging. Depending on whether 904 * the error is E$ or memory related, the appropriate support 905 * routine is called to assist in the string generation. 906 * 907 * - For main memory errors we can use the mc-us3 drivers p2getunum() 908 * (or prom_get_unum() for debugging purposes). 909 * 910 * - For E$ errors we call sg_get_ecacheunum() to generate the unum (or 911 * prom_serengeti_get_ecacheunum() for debugging purposes). 912 */ 913 914 static int 915 sg_prom_get_unum(int synd_code, uint64_t paddr, char *buf, int buflen, 916 int *lenp) 917 { 918 if ((prom_get_unum(synd_code, (unsigned long long)paddr, 919 buf, buflen, lenp)) != 0) 920 return (EIO); 921 else if (*lenp <= 1) 922 return (EINVAL); 923 else 924 return (0); 925 } 926 927 /*ARGSUSED*/ 928 int 929 plat_get_mem_unum(int synd_code, uint64_t flt_addr, int flt_bus_id, 930 int flt_in_memory, ushort_t flt_status, char *buf, int buflen, int *lenp) 931 { 932 /* 933 * unum_func will either point to the memory drivers p2get_mem_unum() 934 * or to prom_get_unum() for memory errors. 935 */ 936 int (*unum_func)(int synd_code, uint64_t paddr, char *buf, 937 int buflen, int *lenp) = p2get_mem_unum; 938 939 /* 940 * check if it's a Memory or an Ecache error. 941 */ 942 if (flt_in_memory) { 943 /* 944 * It's a main memory error. 945 * 946 * For debugging we allow the user to switch between 947 * using OBP's get_unum and the memory driver's get_unum 948 * so we create a pointer to the functions and switch 949 * depending on the sg_use_prom_get_unum flag. 950 */ 951 if (sg_use_prom_get_unum) { 952 DCMNERR(CE_NOTE, "Using prom_get_unum from OBP"); 953 return (sg_prom_get_unum(synd_code, 954 P2ALIGN(flt_addr, 8), buf, buflen, lenp)); 955 } else if (unum_func != NULL) { 956 return (unum_func(synd_code, P2ALIGN(flt_addr, 8), 957 buf, buflen, lenp)); 958 } else { 959 return (ENOTSUP); 960 } 961 } else if (flt_status & ECC_ECACHE) { 962 /* 963 * It's an E$ error. 964 */ 965 if (sg_use_prom_ecache_unum) { 966 /* 967 * We call to OBP to handle this. 968 */ 969 DCMNERR(CE_NOTE, 970 "Using prom_serengeti_get_ecacheunum from OBP"); 971 if (prom_serengeti_get_ecacheunum(flt_bus_id, 972 P2ALIGN(flt_addr, 8), buf, buflen, lenp) != 0) { 973 return (EIO); 974 } 975 } else { 976 return (sg_get_ecacheunum(flt_bus_id, flt_addr, 977 buf, buflen, lenp)); 978 } 979 } else { 980 return (ENOTSUP); 981 } 982 983 return (0); 984 } 985 986 /* 987 * This platform hook gets called from mc_add_mem_unum_label() in the mc-us3 988 * driver giving each platform the opportunity to add platform 989 * specific label information to the unum for ECC error logging purposes. 990 */ 991 void 992 plat_add_mem_unum_label(char *unum, int mcid, int bank, int dimm) 993 { 994 char new_unum[UNUM_NAMLEN] = ""; 995 int node = SG_PORTID_TO_NODEID(mcid); 996 int board = SG_CPU_BD_PORTID_TO_BD_NUM(mcid); 997 int position = SG_PORTID_TO_CPU_POSN(mcid); 998 999 /* 1000 * The mc-us3 driver deals with logical banks but for unum 1001 * purposes we need to use physical banks so that the correct 1002 * dimm can be physically located. Logical banks 0 and 2 1003 * make up physical bank 0. Logical banks 1 and 3 make up 1004 * physical bank 1. Here we do the necessary conversion. 1005 */ 1006 bank = (bank % 2); 1007 1008 if (dimm == -1) { 1009 SG_SET_FRU_NAME_NODE(new_unum, node); 1010 SG_SET_FRU_NAME_CPU_BOARD(new_unum, board); 1011 SG_SET_FRU_NAME_MODULE(new_unum, position); 1012 SG_SET_FRU_NAME_BANK(new_unum, bank); 1013 1014 } else { 1015 SG_SET_FRU_NAME_NODE(new_unum, node); 1016 SG_SET_FRU_NAME_CPU_BOARD(new_unum, board); 1017 SG_SET_FRU_NAME_MODULE(new_unum, position); 1018 SG_SET_FRU_NAME_BANK(new_unum, bank); 1019 SG_SET_FRU_NAME_DIMM(new_unum, dimm); 1020 1021 strcat(new_unum, " "); 1022 strcat(new_unum, unum); 1023 } 1024 1025 strcpy(unum, new_unum); 1026 } 1027 1028 int 1029 plat_get_cpu_unum(int cpuid, char *buf, int buflen, int *lenp) 1030 { 1031 int node = SG_PORTID_TO_NODEID(cpuid); 1032 int board = SG_CPU_BD_PORTID_TO_BD_NUM(cpuid); 1033 1034 if (snprintf(buf, buflen, "/N%d/%s%d", node, 1035 SG_HPU_TYPE_CPU_BOARD_ID, board) >= buflen) { 1036 return (ENOSPC); 1037 } else { 1038 *lenp = strlen(buf); 1039 return (0); 1040 } 1041 } 1042 1043 /* 1044 * We log all ECC events to the SC so we send a mailbox 1045 * message to the SC passing it the relevant data. 1046 * ECC mailbox messages are sent via a taskq mechanism to 1047 * prevent impaired system performance during ECC floods. 1048 * Indictments have already passed through a taskq, so they 1049 * are not queued here. 1050 */ 1051 int 1052 plat_send_ecc_mailbox_msg(plat_ecc_message_type_t msg_type, void *datap) 1053 { 1054 sbbc_ecc_mbox_t *msgp; 1055 size_t msg_size; 1056 uint16_t msg_subtype; 1057 int sleep_flag, log_error; 1058 1059 if (sg_ecc_taskq_func == NULL) { 1060 sg_ecc_taskq_func = (void (*)(sbbc_ecc_mbox_t *)) 1061 modgetsymvalue("sbbc_mbox_queue_ecc_event", 0); 1062 if (sg_ecc_taskq_func == NULL) { 1063 cmn_err(CE_NOTE, "!plat_send_ecc_mailbox_msg: " 1064 "sbbc_mbox_queue_ecc_event not found"); 1065 return (ENODEV); 1066 } 1067 } 1068 if (sg_ecc_mbox_func == NULL) { 1069 sg_ecc_mbox_func = (int (*)(sbbc_ecc_mbox_t *)) 1070 modgetsymvalue("sbbc_mbox_ecc_output", 0); 1071 if (sg_ecc_mbox_func == NULL) { 1072 cmn_err(CE_NOTE, "!plat_send_ecc_mailbox_msg: " 1073 "sbbc_mbox_ecc_output not found"); 1074 return (ENODEV); 1075 } 1076 } 1077 1078 /* 1079 * Initialize the request and response structures 1080 */ 1081 switch (msg_type) { 1082 case PLAT_ECC_ERROR_MESSAGE: 1083 msg_subtype = INFO_MBOX_ERROR_ECC; 1084 msg_size = sizeof (plat_ecc_error_data_t); 1085 sleep_flag = KM_NOSLEEP; 1086 log_error = 1; 1087 break; 1088 case PLAT_ECC_ERROR2_MESSAGE: 1089 msg_subtype = INFO_MBOX_ECC; 1090 msg_size = sizeof (plat_ecc_error2_data_t); 1091 sleep_flag = KM_NOSLEEP; 1092 log_error = 1; 1093 break; 1094 case PLAT_ECC_INDICTMENT_MESSAGE: 1095 msg_subtype = INFO_MBOX_ERROR_INDICT; 1096 msg_size = sizeof (plat_ecc_indictment_data_t); 1097 sleep_flag = KM_SLEEP; 1098 log_error = 0; 1099 break; 1100 case PLAT_ECC_INDICTMENT2_MESSAGE: 1101 msg_subtype = INFO_MBOX_ECC; 1102 msg_size = sizeof (plat_ecc_indictment2_data_t); 1103 sleep_flag = KM_SLEEP; 1104 log_error = 0; 1105 break; 1106 case PLAT_ECC_CAPABILITY_MESSAGE: 1107 msg_subtype = INFO_MBOX_ECC_CAP; 1108 msg_size = sizeof (plat_capability_data_t) + 1109 strlen(utsname.release) + strlen(utsname.version) + 2; 1110 sleep_flag = KM_SLEEP; 1111 log_error = 0; 1112 break; 1113 case PLAT_ECC_DIMM_SID_MESSAGE: 1114 msg_subtype = INFO_MBOX_ECC; 1115 msg_size = sizeof (plat_dimm_sid_request_data_t); 1116 sleep_flag = KM_SLEEP; 1117 log_error = 0; 1118 break; 1119 default: 1120 return (EINVAL); 1121 } 1122 1123 msgp = (sbbc_ecc_mbox_t *)kmem_zalloc(sizeof (sbbc_ecc_mbox_t), 1124 sleep_flag); 1125 if (msgp == NULL) { 1126 cmn_err(CE_NOTE, "!plat_send_ecc_mailbox_msg: " 1127 "unable to allocate sbbc_ecc_mbox"); 1128 return (ENOMEM); 1129 } 1130 1131 msgp->ecc_log_error = log_error; 1132 1133 msgp->ecc_req.msg_type.type = INFO_MBOX; 1134 msgp->ecc_req.msg_type.sub_type = msg_subtype; 1135 msgp->ecc_req.msg_status = 0; 1136 msgp->ecc_req.msg_len = (int)msg_size; 1137 msgp->ecc_req.msg_bytes = 0; 1138 msgp->ecc_req.msg_buf = (caddr_t)kmem_zalloc(msg_size, sleep_flag); 1139 msgp->ecc_req.msg_data[0] = 0; 1140 msgp->ecc_req.msg_data[1] = 0; 1141 1142 if (msgp->ecc_req.msg_buf == NULL) { 1143 cmn_err(CE_NOTE, "!plat_send_ecc_mailbox_msg: " 1144 "unable to allocate request msg_buf"); 1145 kmem_free((void *)msgp, sizeof (sbbc_ecc_mbox_t)); 1146 return (ENOMEM); 1147 } 1148 bcopy(datap, (void *)msgp->ecc_req.msg_buf, msg_size); 1149 1150 /* 1151 * initialize the response back from the SC 1152 */ 1153 msgp->ecc_resp.msg_type.type = INFO_MBOX; 1154 msgp->ecc_resp.msg_type.sub_type = msg_subtype; 1155 msgp->ecc_resp.msg_status = 0; 1156 msgp->ecc_resp.msg_len = 0; 1157 msgp->ecc_resp.msg_bytes = 0; 1158 msgp->ecc_resp.msg_buf = NULL; 1159 msgp->ecc_resp.msg_data[0] = 0; 1160 msgp->ecc_resp.msg_data[1] = 0; 1161 1162 switch (msg_type) { 1163 case PLAT_ECC_ERROR_MESSAGE: 1164 case PLAT_ECC_ERROR2_MESSAGE: 1165 /* 1166 * For Error Messages, we go through a taskq. 1167 * Queue up the message for processing 1168 */ 1169 (*sg_ecc_taskq_func)(msgp); 1170 return (0); 1171 1172 case PLAT_ECC_CAPABILITY_MESSAGE: 1173 /* 1174 * For indictment and capability messages, we've already gone 1175 * through the taskq, so we can call the mailbox routine 1176 * directly. Find the symbol for the routine that sends 1177 * the mailbox msg 1178 */ 1179 msgp->ecc_resp.msg_len = (int)msg_size; 1180 msgp->ecc_resp.msg_buf = (caddr_t)kmem_zalloc(msg_size, 1181 sleep_flag); 1182 /* FALLTHRU */ 1183 1184 case PLAT_ECC_INDICTMENT_MESSAGE: 1185 case PLAT_ECC_INDICTMENT2_MESSAGE: 1186 return ((*sg_ecc_mbox_func)(msgp)); 1187 1188 case PLAT_ECC_DIMM_SID_MESSAGE: 1189 msgp->ecc_resp.msg_len = sizeof (plat_dimm_sid_board_data_t); 1190 msgp->ecc_resp.msg_buf = (caddr_t)kmem_zalloc( 1191 sizeof (plat_dimm_sid_board_data_t), sleep_flag); 1192 return ((*sg_ecc_mbox_func)(msgp)); 1193 1194 default: 1195 ASSERT(0); 1196 return (EINVAL); 1197 } 1198 } 1199 1200 /* 1201 * m is redundant on serengeti as the multiplier is always 4 1202 */ 1203 /*ARGSUSED*/ 1204 int 1205 plat_make_fru_cpuid(int sb, int m, int proc) 1206 { 1207 return (MAKE_CPUID(sb, proc)); 1208 } 1209 1210 /* 1211 * board number for a given proc 1212 */ 1213 int 1214 plat_make_fru_boardnum(int proc) 1215 { 1216 return (SG_CPU_BD_PORTID_TO_BD_NUM(proc)); 1217 } 1218 1219 static 1220 void 1221 cpu_sgn_update(ushort_t sig, uchar_t state, uchar_t sub_state, int cpuid) 1222 { 1223 uint32_t signature = CPU_SIG_BLD(sig, state, sub_state); 1224 sig_state_t current_sgn; 1225 int i; 1226 1227 if (iosram_write_ptr == NULL) { 1228 /* 1229 * If the IOSRAM write pointer isn't set, we won't be able 1230 * to write signatures to ANYTHING, so we may as well just 1231 * write out an error message (if desired) and exit this 1232 * routine now... 1233 */ 1234 DCMNERR(CE_WARN, 1235 "cpu_sgn_update: iosram_write() not found;" 1236 " cannot write signature 0x%x for CPU(s) or domain\n", 1237 signature); 1238 return; 1239 } 1240 1241 1242 /* 1243 * Differentiate a panic reboot from a non-panic reboot in the 1244 * setting of the substate of the signature. 1245 * 1246 * If the new substate is REBOOT and we're rebooting due to a panic, 1247 * then set the new substate to a special value indicating a panic 1248 * reboot, SIGSUBST_PANIC_REBOOT. 1249 * 1250 * A panic reboot is detected by a current (previous) domain signature 1251 * state of SIGST_EXIT, and a new signature substate of SIGSUBST_REBOOT. 1252 * The domain signature state SIGST_EXIT is used as the panic flow 1253 * progresses. 1254 * 1255 * At the end of the panic flow, the reboot occurs but we should now 1256 * one that was involuntary, something that may be quite useful to know 1257 * at OBP level. 1258 */ 1259 if (sub_state == SIGSUBST_REBOOT) { 1260 if (iosram_read_ptr == NULL) { 1261 DCMNERR(CE_WARN, 1262 "cpu_sgn_update: iosram_read() not found;" 1263 " could not check current domain signature\n"); 1264 } else { 1265 (void) (*iosram_read_ptr)(SBBC_SIGBLCK_KEY, 1266 SG_SGNBLK_DOMAINSIG_OFFSET, 1267 (char *)¤t_sgn, sizeof (current_sgn)); 1268 if (current_sgn.state_t.state == SIGST_EXIT) 1269 signature = CPU_SIG_BLD(sig, state, 1270 SIGSUBST_PANIC_REBOOT); 1271 } 1272 } 1273 1274 /* 1275 * cpuid == -1 indicates that the operation applies to all cpus. 1276 */ 1277 if (cpuid >= 0) { 1278 (void) (*iosram_write_ptr)(SBBC_SIGBLCK_KEY, 1279 SG_SGNBLK_CPUSIG_OFFSET(cpuid), (char *)&signature, 1280 sizeof (signature)); 1281 } else { 1282 for (i = 0; i < NCPU; i++) { 1283 if (cpu[i] == NULL || !(cpu[i]->cpu_flags & 1284 (CPU_EXISTS|CPU_QUIESCED))) { 1285 continue; 1286 } 1287 (void) (*iosram_write_ptr)(SBBC_SIGBLCK_KEY, 1288 SG_SGNBLK_CPUSIG_OFFSET(i), (char *)&signature, 1289 sizeof (signature)); 1290 } 1291 } 1292 1293 if (state == SIGST_OFFLINE || state == SIGST_DETACHED) { 1294 return; 1295 } 1296 1297 (void) (*iosram_write_ptr)(SBBC_SIGBLCK_KEY, 1298 SG_SGNBLK_DOMAINSIG_OFFSET, (char *)&signature, 1299 sizeof (signature)); 1300 } 1301 1302 void 1303 startup_platform(void) 1304 { 1305 } 1306 1307 /* 1308 * A routine to convert a number (represented as a string) to 1309 * the integer value it represents. 1310 */ 1311 1312 static int 1313 isdigit(int ch) 1314 { 1315 return (ch >= '0' && ch <= '9'); 1316 } 1317 1318 #define isspace(c) ((c) == ' ' || (c) == '\t' || (c) == '\n') 1319 1320 static int 1321 strtoi(char *p, char **pos) 1322 { 1323 int n; 1324 int c, neg = 0; 1325 1326 if (!isdigit(c = *p)) { 1327 while (isspace(c)) 1328 c = *++p; 1329 switch (c) { 1330 case '-': 1331 neg++; 1332 /* FALLTHROUGH */ 1333 case '+': 1334 c = *++p; 1335 } 1336 if (!isdigit(c)) { 1337 if (pos != NULL) 1338 *pos = p; 1339 return (0); 1340 } 1341 } 1342 for (n = '0' - c; isdigit(c = *++p); ) { 1343 n *= 10; /* two steps to avoid unnecessary overflow */ 1344 n += '0' - c; /* accum neg to avoid surprises at MAX */ 1345 } 1346 if (pos != NULL) 1347 *pos = p; 1348 return (neg ? n : -n); 1349 } 1350 1351 /* 1352 * Get the three parts of the Serengeti PROM version. 1353 * Used for feature readiness tests. 1354 * 1355 * Return 0 if version extracted successfully, -1 otherwise. 1356 */ 1357 1358 int 1359 sg_get_prom_version(int *sysp, int *intfp, int *bldp) 1360 { 1361 int plen; 1362 char vers[512]; 1363 static pnode_t node; 1364 static char version[] = "version"; 1365 char *verp, *ep; 1366 1367 node = prom_finddevice("/openprom"); 1368 if (node == OBP_BADNODE) 1369 return (-1); 1370 1371 plen = prom_getproplen(node, version); 1372 if (plen <= 0 || plen >= sizeof (vers)) 1373 return (-1); 1374 (void) prom_getprop(node, version, vers); 1375 vers[plen] = '\0'; 1376 1377 /* Make sure it's an OBP flashprom */ 1378 if (vers[0] != 'O' && vers[1] != 'B' && vers[2] != 'P') { 1379 cmn_err(CE_WARN, "sg_get_prom_version: " 1380 "unknown <version> string in </openprom>\n"); 1381 return (-1); 1382 } 1383 verp = &vers[4]; 1384 1385 *sysp = strtoi(verp, &ep); 1386 if (ep == verp || *ep != '.') 1387 return (-1); 1388 verp = ep + 1; 1389 1390 *intfp = strtoi(verp, &ep); 1391 if (ep == verp || *ep != '.') 1392 return (-1); 1393 verp = ep + 1; 1394 1395 *bldp = strtoi(verp, &ep); 1396 if (ep == verp || (*ep != '\0' && !isspace(*ep))) 1397 return (-1); 1398 return (0); 1399 } 1400 1401 /* 1402 * Return 0 if system board Dynamic Reconfiguration 1403 * is supported by the firmware, -1 otherwise. 1404 */ 1405 int 1406 sg_prom_sb_dr_check(void) 1407 { 1408 static int prom_res = 1; 1409 1410 if (prom_res == 1) { 1411 int sys, intf, bld; 1412 int rv; 1413 1414 rv = sg_get_prom_version(&sys, &intf, &bld); 1415 if (rv == 0 && sys == 5 && 1416 (intf >= 12 || (intf == 11 && bld >= 200))) { 1417 prom_res = 0; 1418 } else { 1419 prom_res = -1; 1420 } 1421 } 1422 return (prom_res); 1423 } 1424 1425 /* 1426 * Return 0 if cPCI Dynamic Reconfiguration 1427 * is supported by the firmware, -1 otherwise. 1428 */ 1429 int 1430 sg_prom_cpci_dr_check(void) 1431 { 1432 /* 1433 * The version check is currently the same as for 1434 * system boards. Since the two DR sub-systems are 1435 * independent, this could change. 1436 */ 1437 return (sg_prom_sb_dr_check()); 1438 } 1439 1440 /* 1441 * KDI functions - used by the in-situ kernel debugger (kmdb) to perform 1442 * platform-specific operations. These functions execute when the world is 1443 * stopped, and as such cannot make any blocking calls, hold locks, etc. 1444 * promif functions are a special case, and may be used. 1445 */ 1446 1447 /* 1448 * Our implementation of this KDI op updates the CPU signature in the system 1449 * controller. Note that we set the signature to OBP_SIG, rather than DBG_SIG. 1450 * The Forth words we execute will, among other things, transform our OBP_SIG 1451 * into DBG_SIG. They won't function properly if we try to use DBG_SIG. 1452 */ 1453 static void 1454 sg_system_claim(void) 1455 { 1456 prom_interpret("sigb-sig! my-sigb-sig!", OBP_SIG, OBP_SIG, 0, 0, 0); 1457 } 1458 1459 static void 1460 sg_system_release(void) 1461 { 1462 prom_interpret("sigb-sig! my-sigb-sig!", OS_SIG, OS_SIG, 0, 0, 0); 1463 } 1464 1465 static void 1466 sg_console_claim(void) 1467 { 1468 prom_serengeti_set_console_input(SGCN_OBP_STR); 1469 } 1470 1471 static void 1472 sg_console_release(void) 1473 { 1474 prom_serengeti_set_console_input(SGCN_CLNT_STR); 1475 } 1476 1477 void 1478 plat_kdi_init(kdi_t *kdi) 1479 { 1480 kdi->pkdi_system_claim = sg_system_claim; 1481 kdi->pkdi_system_release = sg_system_release; 1482 kdi->pkdi_console_claim = sg_console_claim; 1483 kdi->pkdi_console_release = sg_console_release; 1484 } 1485