xref: /netbsd/sys/arch/alpha/alpha/dec_2100_a50.c (revision c4a72b64)
1 /* $NetBSD: dec_2100_a50.c,v 1.54 2002/09/27 15:35:34 provos Exp $ */
2 
3 /*
4  * Copyright (c) 1995, 1996, 1997 Carnegie-Mellon University.
5  * All rights reserved.
6  *
7  * Author: Chris G. Demetriou
8  *
9  * Permission to use, copy, modify and distribute this software and
10  * its documentation is hereby granted, provided that both the copyright
11  * notice and this permission notice appear in all copies of the
12  * software, derivative works or modified versions, and any portions
13  * thereof, and that both notices appear in supporting documentation.
14  *
15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18  *
19  * Carnegie Mellon requests users of this software to return to
20  *
21  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22  *  School of Computer Science
23  *  Carnegie Mellon University
24  *  Pittsburgh PA 15213-3890
25  *
26  * any improvements or extensions that they make and grant Carnegie the
27  * rights to redistribute these changes.
28  */
29 /*
30  * Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
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_2100_a50.c,v 1.54 2002/09/27 15:35:34 provos 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/cpuconf.h>
50 #include <machine/bus.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 <alpha/pci/apecsreg.h>
63 #include <alpha/pci/apecsvar.h>
64 #include <machine/logout.h>
65 
66 #include <dev/scsipi/scsi_all.h>
67 #include <dev/scsipi/scsipi_all.h>
68 #include <dev/scsipi/scsiconf.h>
69 
70 #include "pckbd.h"
71 
72 #ifndef CONSPEED
73 #define CONSPEED TTYDEF_SPEED
74 #endif
75 static int comcnrate = CONSPEED;
76 
77 void dec_2100_a50_init __P((void));
78 static void dec_2100_a50_cons_init __P((void));
79 static void dec_2100_a50_device_register __P((struct device *, void *));
80 
81 static void dec_2100_a50_mcheck_handler
82 	__P((unsigned long, struct trapframe *, unsigned long, unsigned long));
83 
84 static void dec_2100_a50_mcheck __P((unsigned long, unsigned long,
85 				     unsigned long, struct trapframe *));
86 
87 
88 #ifdef KGDB
89 #include <machine/db_machdep.h>
90 
91 static const char *kgdb_devlist[] = {
92 	"com",
93 	NULL,
94 };
95 #endif /* KGDB */
96 
97 const struct alpha_variation_table dec_2100_a50_variations[] = {
98 	{ SV_ST_AVANTI,	"AlphaStation 400 4/233 (\"Avanti\")" },
99 	{ SV_ST_MUSTANG2_4_166, "AlphaStation 200 4/166 (\"Mustang II\")" },
100 	{ SV_ST_MUSTANG2_4_233, "AlphaStation 200 4/233 (\"Mustang II\")" },
101 	{ SV_ST_AVANTI_4_266, "AlphaStation 250 4/266" },
102 	{ SV_ST_MUSTANG2_4_100, "AlphaStation 200 4/100 (\"Mustang II\")" },
103 	{ SV_ST_AVANTI_4_233, "AlphaStation 255/233" },
104 	{ 0, NULL },
105 };
106 
107 void
108 dec_2100_a50_init()
109 {
110 	u_int64_t variation;
111 
112 	platform.family = "AlphaStation 200/400 (\"Avanti\")";
113 
114 	if ((platform.model = alpha_dsr_sysname()) == NULL) {
115 		variation = hwrpb->rpb_variation & SV_ST_MASK;
116 		if (variation == SV_ST_AVANTI_XXX) {
117 			/* XXX apparently the same? */
118 			variation = SV_ST_AVANTI;
119 		}
120 		if ((platform.model = alpha_variation_name(variation,
121 		    dec_2100_a50_variations)) == NULL)
122 			platform.model = alpha_unknown_sysname();
123 	}
124 
125 	platform.iobus = "apecs";
126 	platform.cons_init = dec_2100_a50_cons_init;
127 	platform.device_register = dec_2100_a50_device_register;
128 	platform.mcheck_handler = dec_2100_a50_mcheck_handler;
129 
130 }
131 
132 static void
133 dec_2100_a50_cons_init()
134 {
135 	struct ctb *ctb;
136 	struct apecs_config *acp;
137 	extern struct apecs_config apecs_configuration;
138 
139 	acp = &apecs_configuration;
140 	apecs_init(acp, 0);
141 
142 	ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
143 
144 	switch (ctb->ctb_term_type) {
145 	case CTB_PRINTERPORT:
146 		/* serial console ... */
147 		/* XXX */
148 		{
149 			/*
150 			 * Delay to allow PROM putchars to complete.
151 			 * FIFO depth * character time,
152 			 * character time = (1000000 / (defaultrate / 10))
153 			 */
154 			DELAY(160000000 / comcnrate);
155 
156 			if(comcnattach(&acp->ac_iot, 0x3f8, comcnrate,
157 			    COM_FREQ,
158 			    (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
159 				panic("can't init serial console");
160 
161 			break;
162 		}
163 
164 	case CTB_GRAPHICS:
165 #if NPCKBD > 0
166 		/* display console ... */
167 		/* XXX */
168 		(void) pckbc_cnattach(&acp->ac_iot, IO_KBD, KBCMDP,
169 		    PCKBC_KBD_SLOT);
170 
171 		if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
172 		    CTB_TURBOSLOT_TYPE_ISA)
173 			isa_display_console(&acp->ac_iot, &acp->ac_memt);
174 		else
175 			pci_display_console(&acp->ac_iot, &acp->ac_memt,
176 			    &acp->ac_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
177 			    CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
178 #else
179 		panic("not configured to use display && keyboard console");
180 #endif
181 		break;
182 
183 	default:
184 		printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
185 		printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
186 
187 		panic("consinit: unknown console type %ld",
188 		    ctb->ctb_term_type);
189 	}
190 #ifdef KGDB
191 	/* Attach the KGDB device. */
192 	alpha_kgdb_init(kgdb_devlist, &acp->ac_iot);
193 #endif /* KGDB */
194 }
195 
196 static void
197 dec_2100_a50_device_register(dev, aux)
198 	struct device *dev;
199 	void *aux;
200 {
201 	static int found, initted, scsiboot, netboot;
202 	static struct device *pcidev, *scsidev;
203 	struct bootdev_data *b = bootdev_data;
204 	struct device *parent = dev->dv_parent;
205 	struct cfdata *cf = dev->dv_cfdata;
206 	const char *name = cf->cf_name;
207 
208 	if (found)
209 		return;
210 
211 	if (!initted) {
212 		scsiboot = (strcmp(b->protocol, "SCSI") == 0);
213 		netboot = (strcmp(b->protocol, "BOOTP") == 0) ||
214 		    (strcmp(b->protocol, "MOP") == 0);
215 #if 0
216 		printf("scsiboot = %d, netboot = %d\n", scsiboot, netboot);
217 #endif
218 		initted =1;
219 	}
220 
221 	if (pcidev == NULL) {
222 		if (strcmp(name, "pci"))
223 			return;
224 		else {
225 			struct pcibus_attach_args *pba = aux;
226 
227 			if ((b->slot / 1000) != pba->pba_bus)
228 				return;
229 
230 			pcidev = dev;
231 #if 0
232 			printf("\npcidev = %s\n", pcidev->dv_xname);
233 #endif
234 			return;
235 		}
236 	}
237 
238 	if (scsiboot && (scsidev == NULL)) {
239 		if (parent != pcidev)
240 			return;
241 		else {
242 			struct pci_attach_args *pa = aux;
243 
244 			if ((b->slot % 1000) != pa->pa_device)
245 				return;
246 
247 			/* XXX function? */
248 
249 			scsidev = dev;
250 #if 0
251 			printf("\nscsidev = %s\n", scsidev->dv_xname);
252 #endif
253 			return;
254 		}
255 	}
256 
257 	if (scsiboot &&
258 	    (!strcmp(name, "sd") ||
259 	     !strcmp(name, "st") ||
260 	     !strcmp(name, "cd"))) {
261 		struct scsipibus_attach_args *sa = aux;
262 
263 		if (parent->dv_parent != scsidev)
264 			return;
265 
266 		if (b->unit / 100 != sa->sa_periph->periph_target)
267 			return;
268 
269 		/* XXX LUN! */
270 
271 		switch (b->boot_dev_type) {
272 		case 0:
273 			if (strcmp(name, "sd") &&
274 			    strcmp(name, "cd"))
275 				return;
276 			break;
277 		case 1:
278 			if (strcmp(name, "st"))
279 				return;
280 			break;
281 		default:
282 			return;
283 		}
284 
285 		/* we've found it! */
286 		booted_device = dev;
287 #if 0
288 		printf("\nbooted_device = %s\n", booted_device->dv_xname);
289 #endif
290 		found = 1;
291 	}
292 
293 	if (netboot) {
294 		if (parent != pcidev)
295 			return;
296 		else {
297 			struct pci_attach_args *pa = aux;
298 
299 			if ((b->slot % 1000) != pa->pa_device)
300 				return;
301 
302 			/* XXX function? */
303 
304 			booted_device = dev;
305 #if 0
306 			printf("\nbooted_device = %s\n", booted_device->dv_xname);
307 #endif
308 			found = 1;
309 			return;
310 		}
311 	}
312 }
313 
314 
315 static void
316 dec_2100_a50_mcheck(mces, type, logout, framep)
317 	unsigned long mces;
318 	unsigned long type;
319 	unsigned long logout;
320 	struct trapframe *framep;
321 {
322 	struct mchkinfo *mcp;
323 	static const char *fmt1 = "        %-25s = 0x%016lx\n";
324 	int i, sysaddr;
325 	mc_hdr_avanti *hdr;
326 	mc_uc_avanti *ptr;
327 
328 	/*
329 	 * If we expected a machine check, just go handle it in common code.
330 	 */
331 	mcp  = &curcpu()->ci_mcinfo;
332 	if (mcp->mc_expected) {
333 		machine_check(mces, framep, type, logout);
334 		return;
335 	}
336 
337 	hdr = (mc_hdr_avanti *) logout;
338 	ptr = (mc_uc_avanti *) (logout + sizeof (*hdr));
339 
340 	printf("      Processor Machine Check (%lx), Code 0x%lx\n",
341 		   type, hdr->mcheck_code);
342 	printf("CPU state:\n");
343 	/* Print PAL fields */
344 	for (i = 0; i < 32; i += 2) {
345 		printf("\tPAL temp[%d-%d]\t\t= 0x%16lx 0x%16lx\n", i, i+1,
346 		    ptr->paltemp[i], ptr->paltemp[i+1]);
347 	}
348 	printf(fmt1, "Excepting Instruction Addr", ptr->exc_addr);
349 	printf(fmt1, "Summary of arithmetic traps", ptr->exc_sum);
350 	printf(fmt1, "Exception mask", ptr->exc_mask);
351 	printf(fmt1, "ICCSR", ptr->iccsr);
352 	printf(fmt1, "Base address for PALcode", ptr->pal_base);
353 	printf(fmt1, "HIER", ptr->hier);
354 	printf(fmt1, "HIRR", ptr->hirr);
355 	printf(fmt1, "MM_CSR", ptr->mm_csr);
356 	printf(fmt1, "DC_STAT", ptr->dc_stat);
357 	printf(fmt1, "DC_ADDR", ptr->dc_addr);
358 	printf(fmt1, "ABOX_CTL", ptr->abox_ctl);
359 	printf(fmt1, "Bus Interface Unit status", ptr->biu_stat);
360 	printf(fmt1, "Bus Interface Unit addr", ptr->biu_addr);
361 	printf(fmt1, "Bus Interface Unit control", ptr->biu_ctl);
362 	printf(fmt1, "Fill Syndrome", ptr->fill_syndrome);
363 	printf(fmt1, "Fill Address", ptr->fill_addr);
364 	printf(fmt1, "Effective VA", ptr->va);
365 	printf(fmt1, "BC_TAG", ptr->bc_tag);
366 
367 	printf("\nCache and Memory Controller (21071-CA) state:\n");
368 	printf(fmt1, "COMA_GCR", ptr->coma_gcr);
369 	printf(fmt1, "COMA_EDSR", ptr->coma_edsr);
370 	printf(fmt1, "COMA_TER", ptr->coma_ter);
371 	printf(fmt1, "COMA_ELAR", ptr->coma_elar);
372 	printf(fmt1, "COMA_EHAR", ptr->coma_ehar);
373 	printf(fmt1, "COMA_LDLR", ptr->coma_ldlr);
374 	printf(fmt1, "COMA_LDHR", ptr->coma_ldhr);
375 	printf(fmt1, "COMA_BASE0", ptr->coma_base0);
376 	printf(fmt1, "COMA_BASE1", ptr->coma_base1);
377 	printf(fmt1, "COMA_BASE2", ptr->coma_base2);
378 	printf(fmt1, "COMA_CNFG0", ptr->coma_cnfg0);
379 	printf(fmt1, "COMA_CNFG1", ptr->coma_cnfg1);
380 	printf(fmt1, "COMA_CNFG2", ptr->coma_cnfg2);
381 
382 	printf("\nPCI bridge (21071-DA) state:\n");
383 
384 	printf(fmt1, "EPIC Diag. control/status", ptr->epic_dcsr);
385 	printf(fmt1, "EPIC_PEAR", ptr->epic_pear);
386 	printf(fmt1, "EPIC_SEAR", ptr->epic_sear);
387 	printf(fmt1, "EPIC_TBR1", ptr->epic_tbr1);
388 	printf(fmt1, "EPIC_TBR2", ptr->epic_tbr2);
389 	printf(fmt1, "EPIC_PBR1", ptr->epic_pbr1);
390 	printf(fmt1, "EPIC_PBR2", ptr->epic_pbr2);
391 	printf(fmt1, "EPIC_PMR1", ptr->epic_pmr1);
392 	printf(fmt1, "EPIC_PMR2", ptr->epic_pmr2);
393 	printf(fmt1, "EPIC_HARX1", ptr->epic_harx1);
394 	printf(fmt1, "EPIC_HARX2", ptr->epic_harx2);
395 	printf(fmt1, "EPIC_PMLT", ptr->epic_pmlt);
396 	printf(fmt1, "EPIC_TAG0", ptr->epic_tag0);
397 	printf(fmt1, "EPIC_TAG1", ptr->epic_tag1);
398 	printf(fmt1, "EPIC_TAG2", ptr->epic_tag2);
399 	printf(fmt1, "EPIC_TAG3", ptr->epic_tag3);
400 	printf(fmt1, "EPIC_TAG4", ptr->epic_tag4);
401 	printf(fmt1, "EPIC_TAG5", ptr->epic_tag5);
402 	printf(fmt1, "EPIC_TAG6", ptr->epic_tag6);
403 	printf(fmt1, "EPIC_TAG7", ptr->epic_tag7);
404 	printf(fmt1, "EPIC_DATA0", ptr->epic_data0);
405 	printf(fmt1, "EPIC_DATA1", ptr->epic_data1);
406 	printf(fmt1, "EPIC_DATA2", ptr->epic_data2);
407 	printf(fmt1, "EPIC_DATA3", ptr->epic_data3);
408 	printf(fmt1, "EPIC_DATA4", ptr->epic_data4);
409 	printf(fmt1, "EPIC_DATA5", ptr->epic_data5);
410 	printf(fmt1, "EPIC_DATA6", ptr->epic_data6);
411 	printf(fmt1, "EPIC_DATA7", ptr->epic_data7);
412 
413 	printf("\n");
414 
415 	if (type == ALPHA_SYS_MCHECK) {
416 	  printf("\nPCI bridge fault\n");
417 	  switch(hdr->mcheck_code) {
418 	  case AVANTI_RETRY_TIMEOUT:
419 	    printf("\tRetry timeout error accessing 0x%08lx.\n",
420 		   ptr->epic_pear & 0xffffffff);
421 	    break;
422 
423 	  case AVANTI_DMA_DATA_PARITY:
424 	    printf("\tDMA data parity error accessing 0x%08lx.\n",
425 		   ptr->epic_pear & 0xffffffff);
426 	    break;
427 
428 	  case AVANTI_IO_PARITY:
429 	    printf("\tI/O parity error at 0x%08lx during PCI cycle 0x%0lx.\n",
430 		   ptr->epic_pear & 0xffffffff,
431 		   (ptr->epic_dcsr >> 18) & 0xf);
432 	    break;
433 
434 	  case AVANTI_TARGET_ABORT:
435 	    printf("\tPCI target abort at 0x%08lx during PCI cycle 0x%0lx.\n",
436 		   ptr->epic_pear & 0xffffffff,
437 		   (ptr->epic_dcsr >> 18) & 0xf);
438 	    break;
439 
440 	  case AVANTI_NO_DEVICE:
441 	    printf("\tNo device responded at 0x%08lx during PCI cycle 0x%0lx\n.",
442 		   ptr->epic_pear & 0xffffffff,
443 		   (ptr->epic_dcsr >> 18) & 0xf);
444 	    break;
445 
446 	  case AVANTI_CORRRECTABLE_MEMORY:
447 	    printf("\tCorrectable memory error reported.\n"
448 		   "\tWARNING ECC not implemented on this system!\n"
449 		   "\tError is incorrect.\n");
450 	    break;
451 
452 	  case AVANTI_UNCORRECTABLE_PCI_MEMORY:
453 	    printf("\tUncorrectable memory error at %016lx reported "
454 		   "during DMA read.\n",
455 		   (ptr->epic_sear & 0xfffffff0) << 2);
456 	    break;
457 
458 	  case AVANTI_INVALID_PT_LOOKUP:
459 	    printf("\tInvalid page table lookup during scatter/gather.\n" );
460 	    if (ptr->epic_dcsr & 0xf20)
461 	      printf("\tAddress lost.\n");
462 	    else
463 	      printf("\tBus address to 0x%08lx, PCI cycle 0x%0lx\n",
464 		     ptr->epic_pear & 0xffffffff,
465 		     (ptr->epic_dcsr >> 18) & 0xf);
466 	    break;
467 
468 	  case AVANTI_MEMORY:
469 	    printf("\tMemory error at %016lx, ",
470 		   (ptr->epic_sear & 0xfffffff0) << 2);
471 	    sysaddr = (ptr->epic_sear & 0xffffffff) >> 21;
472 	    if (sysaddr >= ((ptr->coma_base0 >> 5) & 0x7ff) &&
473 		sysaddr < (((ptr->coma_base0 >> 5) & 0x7ff) +
474 			   (1 << (7 - (ptr->coma_cnfg0 >> 1)))))
475 	      printf("SIMM bank 0\n");
476 	    else if (sysaddr >= ((ptr->coma_base1 >> 5) & 0x7ff) &&
477 		     sysaddr < (((ptr->coma_base1 >> 5) & 0x7ff) +
478 				(1 << (7 - (ptr->coma_cnfg1 >> 1)))))
479 	      printf("SIMM bank 1\n");
480 	    else if (sysaddr >= ((ptr->coma_base2 >> 5) & 0x7ff) &&
481 		     sysaddr < (((ptr->coma_base2 >> 5) & 0x7ff) +
482 				(1 << (7 - (ptr->coma_cnfg2 >> 1)))))
483 	      printf("SIMM bank 2\n");
484 	    else
485 	      printf("invalid memory bank?\n");
486 	    break;
487 
488 	  case AVANTI_BCACHE_TAG_ADDR_PARITY:
489 	    printf("\tBcache tag address parity error, caused by ");
490 	    if (ptr->coma_edsr & 0x20)
491 	      printf("victim write\n");
492 	    else if (ptr->coma_edsr & 0x10)
493 	      printf("DMA. ioCmd<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
494 	    else
495 	      printf("CPU. cpuCReq<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
496 	    break;
497 
498 	  case AVANTI_BCACHE_TAG_CTRL_PARITY:
499 	    printf("\tBcache tag control parity error, caused by ");
500 	    if (ptr->coma_edsr & 0x20)
501 	      printf("victim write\n");
502 	    else if (ptr->coma_edsr & 0x10)
503 	      printf("DMA. ioCmd<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
504 	    else
505 	      printf("CPU. cpuCReq<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
506 	    break;
507 
508 	  case AVANTI_NONEXISTENT_MEMORY:
509 	    printf("\tNonexistent memory error, caused by ");
510 	    if (ptr->coma_edsr & 0x20)
511 	      printf("victim write\n");
512 	    else if (ptr->coma_edsr & 0x10)
513 	      printf("DMA. ioCmd<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
514 	    else
515 	      printf("CPU. cpuCReq<2:0> = %0lx\n", (ptr->coma_edsr >> 6) & 7);
516 	    break;
517 
518 	  case AVANTI_IO_BUS:
519 	    printf("\tI/O bus error at %08lx during PCI cycle %0lx\n",
520 		   ptr->epic_pear & 0xffffffff, (ptr->epic_dcsr >> 18) & 0xf);
521 	    break;
522 
523 	  case AVANTI_BCACHE_TAG_PARITY:
524 	    printf("\tBcache tag address parity error.\n"
525 		   "\tcReg_h cycle %0lx, address<7:0> 0x%02lx\n",
526 		   (ptr->biu_stat >> 4) & 7,
527 		   ptr->biu_addr & 0xff);
528 	    break;
529 
530 	  case AVANTI_BCACHE_TAG_CTRL_PARITY2:
531 	    printf("\tBcache tag control parity error.\n"
532 		   "\tcReg_h cycle %0lx, address<7:0> 0x%02lx\n",
533 		   (ptr->biu_stat >> 4) & 7,
534 		   ptr->biu_addr & 0xff);
535 	    break;
536 
537 	  }
538 	} else { /* ALPHA_PROC_MCHECK */
539 	  printf("\nProcessor fault\n");
540 	  switch(hdr->mcheck_code) {
541 	  case AVANTI_HARD_ERROR:
542 	    printf("\tHard error cycle.\n");
543 	    break;
544 
545 	  case AVANTI_CORRECTABLE_ECC:
546 	    printf("\tCorrectable ECC error.\n"
547 		   "\tWARNING ECC not implemented on this system!\n"
548 		   "\tError is incorrect.\n");
549 	    break;
550 
551 	  case AVANTI_NONCORRECTABLE_ECC:
552 	    printf("\tNoncorrectable ECC error.\n"
553 		   "\tWARNING ECC not implemented on this system!\n"
554 		   "\tError is incorrect.\n");
555 	    break;
556 
557 	  case AVANTI_UNKNOWN_ERROR:
558 	    printf("\tUnknown error.\n");
559 	    break;
560 
561 	  case AVANTI_SOFT_ERROR:
562 	    printf("\tSoft error cycle.\n");
563 	    break;
564 
565 	  case AVANTI_BUGCHECK:
566 	    printf("\tBugcheck.\n");
567 	    break;
568 
569 	  case AVANTI_OS_BUGCHECK:
570 	    printf("\tOS Bugcheck.\n");
571 	    break;
572 
573 	  case AVANTI_DCACHE_FILL_PARITY:
574 	    printf("\tPrimary Dcache data fill parity error.\n"
575 		   "\tDcache Quadword %lx, address %08lx\n",
576 		   (ptr->biu_stat >> 12) & 0x3,
577 		   (ptr->fill_addr >> 8) & 0x7f);
578 	    break;
579 
580 	  case AVANTI_ICACHE_FILL_PARITY:
581 	    printf("\tPrimary Icache data fill parity error.\n"
582 		   "\tDcache Quadword %lx, address %08lx\n",
583 		   (ptr->biu_stat >> 12) & 0x3,
584 		   (ptr->fill_addr >> 8) & 0x7f);
585 	    break;
586 	  }
587 	}
588 
589 	/*
590 	 * Now that we've printed all sorts of useful information
591 	 * and have decided that we really can't do any more to
592 	 * respond to the error, go on to the common code for
593 	 * final disposition. Usually this means that we die.
594 	 */
595 	/*
596 	 * XXX: HANDLE PCI ERRORS HERE?
597 	 */
598 	machine_check(mces, framep, type, logout);
599 }
600 
601 static void
602 dec_2100_a50_mcheck_handler(mces, framep, vector, param)
603 	unsigned long mces;
604 	struct trapframe *framep;
605 	unsigned long vector;
606 	unsigned long param;
607 {
608 	switch (vector) {
609 	case ALPHA_SYS_MCHECK:
610 	case ALPHA_PROC_MCHECK:
611 		dec_2100_a50_mcheck(mces, vector, param, framep);
612 		break;
613 	default:
614 		printf("2100_A50_MCHECK: unknown check vector 0x%lx\n", vector);
615 		machine_check(mces, framep, vector, param);
616 		break;
617 	}
618 }
619