1/* $NetBSD: dec_kn300.c,v 1.38 2011/06/14 15:34:22 matt Exp $ */ 2 3/* 4 * Copyright (c) 1998 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#include "opt_kgdb.h" 34 35#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 36 37__KERNEL_RCSID(0, "$NetBSD: dec_kn300.c,v 1.38 2011/06/14 15:34:22 matt Exp $"); 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/device.h> 42#include <sys/termios.h> 43#include <sys/conf.h> 44#include <dev/cons.h> 45 46#include <machine/rpb.h> 47#include <machine/alpha.h> 48#include <machine/autoconf.h> 49#include <machine/frame.h> 50#include <machine/cpuconf.h> 51 52#include <dev/ic/comreg.h> 53#include <dev/ic/comvar.h> 54 55#include <dev/isa/isareg.h> 56#include <dev/isa/isavar.h> 57#include <dev/ic/i8042reg.h> 58#include <dev/ic/pckbcvar.h> 59#include <dev/pci/pcireg.h> 60#include <dev/pci/pcivar.h> 61 62#include <uvm/uvm_extern.h> 63 64#include <alpha/mcbus/mcbusreg.h> 65#include <alpha/mcbus/mcbusvar.h> 66#include <alpha/pci/mcpciareg.h> 67#include <alpha/pci/mcpciavar.h> 68#include <alpha/pci/pci_kn300.h> 69#include <machine/logout.h> 70 71#include <dev/scsipi/scsi_all.h> 72#include <dev/scsipi/scsipi_all.h> 73#include <dev/scsipi/scsiconf.h> 74 75#include <dev/ic/mlxio.h> 76#include <dev/ic/mlxvar.h> 77 78 79#include "pckbd.h" 80 81#ifndef CONSPEED 82#define CONSPEED TTYDEF_SPEED 83#endif 84static int comcnrate = CONSPEED; 85 86void dec_kn300_init(void); 87void dec_kn300_cons_init(void); 88static void dec_kn300_device_register(device_t, void *); 89static void dec_kn300_mcheck_handler 90(unsigned long, struct trapframe *, unsigned long, unsigned long); 91 92#ifdef KGDB 93#include <machine/db_machdep.h> 94 95static const char *kgdb_devlist[] = { 96 "com", 97 NULL, 98}; 99#endif /* KGDB */ 100 101#define ALPHASERVER_4100 "AlphaServer 4100" 102 103const struct alpha_variation_table dec_kn300_variations[] = { 104 { 0, ALPHASERVER_4100 }, 105 { 0, NULL }, 106}; 107 108void 109dec_kn300_init(void) 110{ 111 uint64_t variation; 112 int cachesize; 113 114 platform.family = ALPHASERVER_4100; 115 116 if ((platform.model = alpha_dsr_sysname()) == NULL) { 117 variation = hwrpb->rpb_variation & SV_ST_MASK; 118 if ((platform.model = alpha_variation_name(variation, 119 dec_kn300_variations)) == NULL) 120 platform.model = alpha_unknown_sysname(); 121 } 122 123 platform.iobus = "mcbus"; 124 platform.cons_init = dec_kn300_cons_init; 125 platform.device_register = dec_kn300_device_register; 126 platform.mcheck_handler = dec_kn300_mcheck_handler; 127 128 /* 129 * Determine B-cache size by looking at the primary (console) 130 * MCPCIA's WHOAMI register. 131 */ 132 mcpcia_init(); 133 134 if (mcbus_primary.mcbus_valid) { 135 switch (mcbus_primary.mcbus_bcache) { 136 default: 137 case CPU_BCache_0MB: 138 /* No B-cache or invalid; default to 1MB. */ 139 /* FALLTHROUGH */ 140 141 case CPU_BCache_1MB: 142 cachesize = (1 * 1024 * 1024); 143 break; 144 145 case CPU_BCache_2MB: 146 cachesize = (2 * 1024 * 1024); 147 break; 148 149 case CPU_BCache_4MB: 150 cachesize = (4 * 1024 * 1024); 151 break; 152 } 153 } else { 154 /* Default to 1MB. */ 155 cachesize = (1 * 1024 * 1024); 156 } 157 158 uvmexp.ncolors = atop(cachesize); 159} 160 161void 162dec_kn300_cons_init(void) 163{ 164 struct ctb *ctb; 165 struct mcpcia_config *ccp; 166 extern struct mcpcia_config mcpcia_console_configuration; 167 168 ccp = &mcpcia_console_configuration; 169 /* It's already initialized. */ 170 171 ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off); 172 173 switch (ctb->ctb_term_type) { 174 case CTB_PRINTERPORT: 175 /* serial console ... */ 176 /* 177 * Delay to allow PROM putchars to complete. 178 * FIFO depth * character time, 179 * character time = (1000000 / (defaultrate / 10)) 180 */ 181 DELAY(160000000 / comcnrate); 182 if (comcnattach(&ccp->cc_iot, 0x3f8, comcnrate, 183 COM_FREQ, COM_TYPE_NORMAL, 184 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8)) { 185 panic("can't init serial console"); 186 187 } 188 break; 189 190 case CTB_GRAPHICS: 191#if NPCKBD > 0 192 /* display console ... */ 193 /* XXX */ 194 (void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP, 195 PCKBC_KBD_SLOT); 196 197 if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) == 198 CTB_TURBOSLOT_TYPE_ISA) 199 isa_display_console(&ccp->cc_iot, &ccp->cc_memt); 200 else 201 pci_display_console(&ccp->cc_iot, &ccp->cc_memt, 202 &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot), 203 CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0); 204#else 205 panic("not configured to use display && keyboard console"); 206#endif 207 break; 208 209 default: 210 printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type); 211 printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot); 212 213 panic("consinit: unknown console type %ld", 214 ctb->ctb_term_type); 215 } 216#ifdef KGDB 217 /* Attach the KGDB device. */ 218 alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot); 219#endif /* KGDB */ 220} 221 222/* #define BDEBUG 1 */ 223static void 224dec_kn300_device_register(device_t dev, void *aux) 225{ 226 static int found, initted, diskboot, netboot; 227 static device_t primarydev, pcidev, ctrlrdev; 228 struct bootdev_data *b = bootdev_data; 229 device_t parent = device_parent(dev); 230 231 if (found) 232 return; 233 234 if (!initted) { 235 diskboot = (strcasecmp(b->protocol, "SCSI") == 0) || 236 (strcasecmp(b->protocol, "RAID") == 0); 237 netboot = (strcasecmp(b->protocol, "BOOTP") == 0) || 238 (strcasecmp(b->protocol, "MOP") == 0); 239#ifdef BDEBUG 240 printf("proto:%s bus:%d slot:%d chan:%d", b->protocol, 241 b->bus, b->slot, b->channel); 242 if (b->remote_address) 243 printf(" remote_addr:%s", b->remote_address); 244 printf(" un:%d bdt:%d", b->unit, b->boot_dev_type); 245 if (b->ctrl_dev_type) 246 printf(" cdt:%s\n", b->ctrl_dev_type); 247 else 248 printf("\n"); 249 printf("diskboot = %d, netboot = %d\n", diskboot, netboot); 250#endif 251 initted = 1; 252 } 253 254 if (primarydev == NULL) { 255 if (!device_is_a(dev, "mcpcia")) 256 return; 257 else { 258 struct mcbus_dev_attach_args *ma = aux; 259 260 if (b->bus != ma->ma_mid - 4) 261 return; 262 primarydev = dev; 263#ifdef BDEBUG 264 printf("\nprimarydev = %s\n", device_xname(dev)); 265#endif 266 return; 267 } 268 } 269 270 if (pcidev == NULL) { 271 if (!device_is_a(dev, "pci")) 272 return; 273 /* 274 * Try to find primarydev anywhere in the ancestry. This is 275 * necessary if the PCI bus is hidden behind a bridge. 276 */ 277 while (parent) { 278 if (parent == primarydev) 279 break; 280 parent = device_parent(parent); 281 } 282 if (!parent) 283 return; 284 else { 285 struct pcibus_attach_args *pba = aux; 286 287 if ((b->slot / 1000) != pba->pba_bus) 288 return; 289 290 pcidev = dev; 291#ifdef BDEBUG 292 printf("\npcidev = %s\n", device_xname(dev)); 293#endif 294 return; 295 } 296 } 297 298 if (ctrlrdev == NULL) { 299 if (parent != pcidev) 300 return; 301 else { 302 struct pci_attach_args *pa = aux; 303 int slot; 304 305 slot = pa->pa_bus * 1000 + pa->pa_function * 100 + 306 pa->pa_device; 307 if (b->slot != slot) 308 return; 309 310 if (netboot) { 311 booted_device = dev; 312#ifdef BDEBUG 313 printf("\nbooted_device = %s\n", device_xname(dev)); 314#endif 315 found = 1; 316 } else { 317 ctrlrdev = dev; 318#ifdef BDEBUG 319 printf("\nctrlrdev = %s\n", device_xname(dev)); 320#endif 321 } 322 return; 323 } 324 } 325 326 if (!diskboot) 327 return; 328 329 if (device_is_a(dev, "sd") || 330 device_is_a(dev, "st") || 331 device_is_a(dev, "cd")) { 332 struct scsipibus_attach_args *sa = aux; 333 struct scsipi_periph *periph = sa->sa_periph; 334 int unit; 335 336 if (device_parent(parent) != ctrlrdev) 337 return; 338 339 unit = periph->periph_target * 100 + periph->periph_lun; 340 if (b->unit != unit) 341 return; 342 if (b->channel != periph->periph_channel->chan_channel) 343 return; 344 345 /* we've found it! */ 346 booted_device = dev; 347#ifdef BDEBUG 348 printf("\nbooted_device = %s\n", device_xname(dev)); 349#endif 350 found = 1; 351 } 352 353 if (device_is_a(dev, "ld") && device_is_a(parent, "mlx")) { 354 /* 355 * Argh! The attach arguments for ld devices is not 356 * consistent, so each supported raid controller requires 357 * different checks. 358 */ 359 struct mlx_attach_args *mlxa = aux; 360 361 if (parent != ctrlrdev) 362 return; 363 364 if (b->unit != mlxa->mlxa_unit) 365 return; 366 /* we've found it! */ 367 booted_device = dev; 368#if 0 369 printf("\nbooted_device = %s\n", device_xname(dev)); 370#endif 371 found = 1; 372 } 373} 374 375 376/* 377 * KN300 Machine Check Handlers. 378 */ 379static void kn300_softerr(unsigned long, unsigned long, 380 unsigned long, struct trapframe *); 381 382static void kn300_mcheck(unsigned long, unsigned long, 383 unsigned long, struct trapframe *); 384 385/* 386 * "soft" error structure in system area for KN300 processor. 387 * It differs from the EV5 'common' structure in a minor but 388 * exceedingly stupid and annoying fashion. 389 */ 390 391typedef struct { 392 /* 393 * Should be mc_cc_ev5 structure. Contents are the same, 394 * just in different places. 395 */ 396 uint64_t ei_stat; 397 uint64_t ei_addr; 398 uint64_t fill_syndrome; 399 uint64_t isr; 400 /* 401 * Platform Specific Area 402 */ 403 uint32_t whami; 404 uint32_t sys_env; 405 uint64_t mcpcia_regs; 406 uint32_t pci_rev; 407 uint32_t mc_err0; 408 uint32_t mc_err1; 409 uint32_t cap_err; 410 uint32_t mdpa_stat; 411 uint32_t mdpa_syn; 412 uint32_t mdpb_stat; 413 uint32_t mdpb_syn; 414 uint64_t end_rsvd; 415} mc_soft300; 416#define CAP_ERR_CRDX 204 417 418static void 419kn300_softerr(unsigned long mces, unsigned long type, unsigned long logout, struct trapframe *framep) 420{ 421 static const char *sys = "system"; 422 static const char *proc = "processor"; 423 int whami; 424 mc_hdr_ev5 *hdr; 425 mc_soft300 *ptr; 426 static const char *fmt1 = " %-25s = 0x%l016x\n"; 427 428 hdr = (mc_hdr_ev5 *) logout; 429 ptr = (mc_soft300 *) (logout + sizeof (*hdr)); 430 whami = alpha_pal_whami(); 431 432 printf("kn300: CPU ID %d %s correctable error corrected by %s\n", whami, 433 (type == ALPHA_SYS_ERROR)? sys : proc, 434 ((hdr->mcheck_code & 0xff00) == (EV5_CORRECTED << 16))? proc : 435 (((hdr->mcheck_code & 0xff00) == (CAP_ERR_CRDX << 16)) ? 436 "I/O Bridge Module" : sys)); 437 438 printf(" Machine Check Code 0x%lx\n", hdr->mcheck_code); 439 printf(" Physical Address of Error 0x%lx\n", ptr->ei_addr); 440 if (ptr->ei_stat & 0x80000000L) 441 printf(" Corrected ECC Error "); 442 else 443 printf(" Other Error"); 444 if (ptr->ei_stat & 0x40000000L) 445 printf("in Memory "); 446 else 447 printf("in B-Cache "); 448 if (ptr->ei_stat & 0x400000000L) 449 printf("during I-Cache fill\n"); 450 else 451 printf("during D-Cache fill\n"); 452 453 printf(fmt1, "EI Status", ptr->ei_stat); 454 printf(fmt1, "Fill Syndrome", ptr->fill_syndrome); 455 printf(fmt1, "Interrupt Status Reg.", ptr->isr); 456 printf("\n"); 457 printf(fmt1, "Whami Reg.", ptr->whami); 458 printf(fmt1, "Sys. Env. Reg.", ptr->sys_env); 459 printf(fmt1, "MCPCIA Regs.", ptr->mcpcia_regs); 460 printf(fmt1, "PCI Rev. Reg.", ptr->pci_rev); 461 printf(fmt1, "MC_ERR0 Reg.", ptr->mc_err0); 462 printf(fmt1, "MC_ERR1 Reg.", ptr->mc_err1); 463 printf(fmt1, "CAP_ERR Reg.", ptr->cap_err); 464 printf(fmt1, "MDPA_STAT Reg.", ptr->mdpa_stat); 465 printf(fmt1, "MDPA_SYN Reg.", ptr->mdpa_syn); 466 printf(fmt1, "MDPB_STAT Reg.", ptr->mdpb_stat); 467 printf(fmt1, "MDPB_SYN Reg.", ptr->mdpb_syn); 468 469 /* 470 * Clear error by rewriting register. 471 */ 472 alpha_pal_wrmces(mces); 473} 474 475/* 476 * KN300 specific machine check handler 477 */ 478 479static void 480kn300_mcheck(unsigned long mces, unsigned long type, unsigned long logout, struct trapframe *framep) 481{ 482 struct mchkinfo *mcp; 483 static const char *fmt1 = " %-25s = 0x%l016x\n"; 484 int i; 485 mc_hdr_ev5 *hdr; 486 mc_uc_ev5 *ptr; 487 struct mcpcia_iodsnap *iodsnp; 488 489 /* 490 * If we expected a machine check, just go handle it in common code. 491 */ 492 mcp = &curcpu()->ci_mcinfo; 493 if (mcp->mc_expected) { 494 machine_check(mces, framep, type, logout); 495 return; 496 } 497 498 hdr = (mc_hdr_ev5 *) logout; 499 ptr = (mc_uc_ev5 *) (logout + sizeof (*hdr)); 500 ev5_logout_print(hdr, ptr); 501 502 iodsnp = (struct mcpcia_iodsnap *) ((unsigned long) hdr + 503 (unsigned long) hdr->la_system_offset); 504 for (i = 0; i < MCPCIA_PER_MCBUS; i++, iodsnp++) { 505 if (!IS_MCPCIA_MAGIC(iodsnp->pci_rev)) { 506 continue; 507 } 508 printf(" IOD %d register dump:\n", i); 509 printf(fmt1, "Base Addr of PCI bridge", iodsnp->base_addr); 510 printf(fmt1, "Whami Reg.", iodsnp->whami); 511 printf(fmt1, "Sys. Env. Reg.", iodsnp->sys_env); 512 printf(fmt1, "PCI Rev. Reg.", iodsnp->pci_rev); 513 printf(fmt1, "CAP_CTL Reg.", iodsnp->cap_ctrl); 514 printf(fmt1, "HAE_MEM Reg.", iodsnp->hae_mem); 515 printf(fmt1, "HAE_IO Reg.", iodsnp->hae_io); 516 printf(fmt1, "INT_CTL Reg.", iodsnp->int_ctl); 517 printf(fmt1, "INT_REG Reg.", iodsnp->int_reg); 518 printf(fmt1, "INT_MASK0 Reg.", iodsnp->int_mask0); 519 printf(fmt1, "INT_MASK1 Reg.", iodsnp->int_mask1); 520 printf(fmt1, "MC_ERR0 Reg.", iodsnp->mc_err0); 521 printf(fmt1, "MC_ERR1 Reg.", iodsnp->mc_err1); 522 printf(fmt1, "CAP_ERR Reg.", iodsnp->cap_err); 523 printf(fmt1, "PCI_ERR1 Reg.", iodsnp->pci_err1); 524 printf(fmt1, "MDPA_STAT Reg.", iodsnp->mdpa_stat); 525 printf(fmt1, "MDPA_SYN Reg.", iodsnp->mdpa_syn); 526 printf(fmt1, "MDPB_STAT Reg.", iodsnp->mdpb_stat); 527 printf(fmt1, "MDPB_SYN Reg.", iodsnp->mdpb_syn); 528 529 } 530 /* 531 * Now that we've printed all sorts of useful information 532 * and have decided that we really can't do any more to 533 * respond to the error, go on to the common code for 534 * final disposition. Usually this means that we die. 535 */ 536 /* 537 * XXX: HANDLE PCI ERRORS HERE? 538 */ 539 machine_check(mces, framep, type, logout); 540} 541 542static void 543dec_kn300_mcheck_handler(unsigned long mces, struct trapframe *framep, unsigned long vector, unsigned long param) 544{ 545 switch (vector) { 546 case ALPHA_SYS_ERROR: 547 case ALPHA_PROC_ERROR: 548 kn300_softerr(mces, vector, param, framep); 549 break; 550 551 case ALPHA_SYS_MCHECK: 552 case ALPHA_PROC_MCHECK: 553 kn300_mcheck(mces, vector, param, framep); 554 break; 555 default: 556 printf("KN300_MCHECK: unknown check vector 0x%lx\n", vector); 557 machine_check(mces, framep, vector, param); 558 break; 559 } 560} 561