1 /* $NetBSD: dec_kn300.c,v 1.43 2021/06/19 16:36:35 thorpej 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 1.43 2021/06/19 16:36:35 thorpej 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 <machine/logout.h>
69
70 #include <dev/scsipi/scsi_all.h>
71 #include <dev/scsipi/scsipi_all.h>
72 #include <dev/scsipi/scsiconf.h>
73
74 #include <dev/ic/mlxio.h>
75 #include <dev/ic/mlxvar.h>
76
77
78 #include "pckbd.h"
79
80 #ifndef CONSPEED
81 #define CONSPEED TTYDEF_SPEED
82 #endif
83 static int comcnrate = CONSPEED;
84
85 void dec_kn300_init(void);
86 void dec_kn300_cons_init(void);
87 static void dec_kn300_device_register(device_t, void *);
88 static void dec_kn300_mcheck_handler
89 (unsigned long, struct trapframe *, unsigned long, unsigned long);
90
91 #ifdef KGDB
92 #include <machine/db_machdep.h>
93
94 static const char *kgdb_devlist[] = {
95 "com",
96 NULL,
97 };
98 #endif /* KGDB */
99
100 #define ALPHASERVER_4100 "AlphaServer 4100"
101
102 const struct alpha_variation_table dec_kn300_variations[] = {
103 { 0, ALPHASERVER_4100 },
104 { 0, NULL },
105 };
106
107 void
dec_kn300_init(void)108 dec_kn300_init(void)
109 {
110 uint64_t variation;
111 int cachesize;
112
113 platform.family = ALPHASERVER_4100;
114
115 if ((platform.model = alpha_dsr_sysname()) == NULL) {
116 variation = hwrpb->rpb_variation & SV_ST_MASK;
117 if ((platform.model = alpha_variation_name(variation,
118 dec_kn300_variations)) == NULL)
119 platform.model = alpha_unknown_sysname();
120 }
121
122 platform.iobus = "mcbus";
123 platform.cons_init = dec_kn300_cons_init;
124 platform.device_register = dec_kn300_device_register;
125 platform.mcheck_handler = dec_kn300_mcheck_handler;
126
127 /*
128 * Determine B-cache size by looking at the primary (console)
129 * MCPCIA's WHOAMI register.
130 */
131 mcpcia_init();
132
133 if (mcbus_primary.mcbus_valid) {
134 switch (mcbus_primary.mcbus_bcache) {
135 default:
136 case CPU_BCache_0MB:
137 /* No B-cache or invalid; default to 1MB. */
138 /* FALLTHROUGH */
139
140 case CPU_BCache_1MB:
141 cachesize = (1 * 1024 * 1024);
142 break;
143
144 case CPU_BCache_2MB:
145 cachesize = (2 * 1024 * 1024);
146 break;
147
148 case CPU_BCache_4MB:
149 cachesize = (4 * 1024 * 1024);
150 break;
151 }
152 } else {
153 /* Default to 1MB. */
154 cachesize = (1 * 1024 * 1024);
155 }
156
157 uvmexp.ncolors = atop(cachesize);
158 }
159
160 void
dec_kn300_cons_init(void)161 dec_kn300_cons_init(void)
162 {
163 struct ctb *ctb;
164 struct mcpcia_config *ccp;
165 extern struct mcpcia_config mcpcia_console_configuration;
166
167 ccp = &mcpcia_console_configuration;
168 /* It's already initialized. */
169
170 ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
171
172 switch (ctb->ctb_term_type) {
173 case CTB_PRINTERPORT:
174 /* serial console ... */
175 /*
176 * Delay to allow PROM putchars to complete.
177 * FIFO depth * character time,
178 * character time = (1000000 / (defaultrate / 10))
179 */
180 DELAY(160000000 / comcnrate);
181 if (comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
182 COM_FREQ, COM_TYPE_NORMAL,
183 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8)) {
184 panic("can't init serial console");
185
186 }
187 break;
188
189 case CTB_GRAPHICS:
190 #if NPCKBD > 0
191 /* display console ... */
192 /* XXX */
193 (void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
194 PCKBC_KBD_SLOT, 0);
195
196 if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
197 CTB_TURBOSLOT_TYPE_ISA)
198 isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
199 else
200 pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
201 &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
202 CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
203 #else
204 panic("not configured to use display && keyboard console");
205 #endif
206 break;
207
208 default:
209 printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
210 printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
211
212 panic("consinit: unknown console type %ld",
213 ctb->ctb_term_type);
214 }
215 #ifdef KGDB
216 /* Attach the KGDB device. */
217 alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
218 #endif /* KGDB */
219 }
220
221 /* #define BDEBUG 1 */
222 static void
dec_kn300_device_register(device_t dev,void * aux)223 dec_kn300_device_register(device_t dev, void *aux)
224 {
225 static int found, initted, diskboot, netboot;
226 static device_t primarydev, pcidev, ctrlrdev;
227 struct bootdev_data *b = bootdev_data;
228 device_t parent = device_parent(dev);
229
230 if (found)
231 return;
232
233 if (!initted) {
234 diskboot = (strcasecmp(b->protocol, "SCSI") == 0) ||
235 (strcasecmp(b->protocol, "RAID") == 0);
236 netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
237 (strcasecmp(b->protocol, "MOP") == 0);
238 #ifdef BDEBUG
239 printf("proto:%s bus:%d slot:%d chan:%d", b->protocol,
240 b->bus, b->slot, b->channel);
241 if (b->remote_address)
242 printf(" remote_addr:%s", b->remote_address);
243 printf(" un:%d bdt:%d", b->unit, b->boot_dev_type);
244 if (b->ctrl_dev_type)
245 printf(" cdt:%s\n", b->ctrl_dev_type);
246 else
247 printf("\n");
248 printf("diskboot = %d, netboot = %d\n", diskboot, netboot);
249 #endif
250 initted = 1;
251 }
252
253 if (primarydev == NULL) {
254 if (!device_is_a(dev, "mcpcia"))
255 return;
256 else {
257 struct mcbus_dev_attach_args *ma = aux;
258
259 if (b->bus != ma->ma_mid - 4)
260 return;
261 primarydev = dev;
262 #ifdef BDEBUG
263 printf("\nprimarydev = %s\n", device_xname(dev));
264 #endif
265 return;
266 }
267 }
268
269 if (pcidev == NULL) {
270 if (!device_is_a(dev, "pci"))
271 return;
272 /*
273 * Try to find primarydev anywhere in the ancestry. This is
274 * necessary if the PCI bus is hidden behind a bridge.
275 */
276 while (parent) {
277 if (parent == primarydev)
278 break;
279 parent = device_parent(parent);
280 }
281 if (!parent)
282 return;
283 else {
284 struct pcibus_attach_args *pba = aux;
285
286 if ((b->slot / 1000) != pba->pba_bus)
287 return;
288
289 pcidev = dev;
290 #ifdef BDEBUG
291 printf("\npcidev = %s\n", device_xname(dev));
292 #endif
293 return;
294 }
295 }
296
297 if (ctrlrdev == NULL) {
298 if (parent != pcidev)
299 return;
300 else {
301 struct pci_attach_args *pa = aux;
302 int slot;
303
304 slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
305 pa->pa_device;
306 if (b->slot != slot)
307 return;
308
309 if (netboot) {
310 booted_device = dev;
311 #ifdef BDEBUG
312 printf("\nbooted_device = %s\n", device_xname(dev));
313 #endif
314 found = 1;
315 } else {
316 ctrlrdev = dev;
317 #ifdef BDEBUG
318 printf("\nctrlrdev = %s\n", device_xname(dev));
319 #endif
320 }
321 return;
322 }
323 }
324
325 if (!diskboot)
326 return;
327
328 if (device_is_a(dev, "sd") ||
329 device_is_a(dev, "st") ||
330 device_is_a(dev, "cd")) {
331 struct scsipibus_attach_args *sa = aux;
332 struct scsipi_periph *periph = sa->sa_periph;
333 int unit;
334
335 if (device_parent(parent) != ctrlrdev)
336 return;
337
338 unit = periph->periph_target * 100 + periph->periph_lun;
339 if (b->unit != unit)
340 return;
341 if (b->channel != periph->periph_channel->chan_channel)
342 return;
343
344 /* we've found it! */
345 booted_device = dev;
346 #ifdef BDEBUG
347 printf("\nbooted_device = %s\n", device_xname(dev));
348 #endif
349 found = 1;
350 }
351
352 if (device_is_a(dev, "ld") && device_is_a(parent, "mlx")) {
353 /*
354 * Argh! The attach arguments for ld devices is not
355 * consistent, so each supported raid controller requires
356 * different checks.
357 */
358 struct mlx_attach_args *mlxa = aux;
359
360 if (parent != ctrlrdev)
361 return;
362
363 if (b->unit != mlxa->mlxa_unit)
364 return;
365 /* we've found it! */
366 booted_device = dev;
367 #if 0
368 printf("\nbooted_device = %s\n", device_xname(dev));
369 #endif
370 found = 1;
371 }
372 }
373
374
375 /*
376 * KN300 Machine Check Handlers.
377 */
378 static void kn300_softerr(unsigned long, unsigned long,
379 unsigned long, struct trapframe *);
380
381 static void kn300_mcheck(unsigned long, unsigned long,
382 unsigned long, struct trapframe *);
383
384 /*
385 * "soft" error structure in system area for KN300 processor.
386 * It differs from the EV5 'common' structure in a minor but
387 * exceedingly stupid and annoying fashion.
388 */
389
390 typedef struct {
391 /*
392 * Should be mc_cc_ev5 structure. Contents are the same,
393 * just in different places.
394 */
395 uint64_t ei_stat;
396 uint64_t ei_addr;
397 uint64_t fill_syndrome;
398 uint64_t isr;
399 /*
400 * Platform Specific Area
401 */
402 uint32_t whami;
403 uint32_t sys_env;
404 uint64_t mcpcia_regs;
405 uint32_t pci_rev;
406 uint32_t mc_err0;
407 uint32_t mc_err1;
408 uint32_t cap_err;
409 uint32_t mdpa_stat;
410 uint32_t mdpa_syn;
411 uint32_t mdpb_stat;
412 uint32_t mdpb_syn;
413 uint64_t end_rsvd;
414 } mc_soft300;
415 #define CAP_ERR_CRDX 204
416
417 static void
kn300_softerr(unsigned long mces,unsigned long type,unsigned long logout,struct trapframe * framep)418 kn300_softerr(unsigned long mces, unsigned long type, unsigned long logout, struct trapframe *framep)
419 {
420 static const char *sys = "system";
421 static const char *proc = "processor";
422 int whami;
423 mc_hdr_ev5 *hdr;
424 mc_soft300 *ptr;
425 static const char *fmt1 = " %-25s = 0x%l016x\n";
426
427 hdr = (mc_hdr_ev5 *) logout;
428 ptr = (mc_soft300 *) (logout + sizeof (*hdr));
429 whami = alpha_pal_whami();
430
431 printf("kn300: CPU ID %d %s correctable error corrected by %s\n", whami,
432 (type == ALPHA_SYS_ERROR)? sys : proc,
433 ((hdr->mcheck_code & 0xff00) == (EV5_CORRECTED << 8))? proc :
434 (((hdr->mcheck_code & 0xff00) == (CAP_ERR_CRDX << 8)) ?
435 "I/O Bridge Module" : sys));
436
437 printf(" Machine Check Code 0x%lx\n", hdr->mcheck_code);
438 printf(" Physical Address of Error 0x%lx\n", ptr->ei_addr);
439 if (ptr->ei_stat & 0x80000000L)
440 printf(" Corrected ECC Error ");
441 else
442 printf(" Other Error");
443 if (ptr->ei_stat & 0x40000000L)
444 printf("in Memory ");
445 else
446 printf("in B-Cache ");
447 if (ptr->ei_stat & 0x400000000L)
448 printf("during I-Cache fill\n");
449 else
450 printf("during D-Cache fill\n");
451
452 printf(fmt1, "EI Status", ptr->ei_stat);
453 printf(fmt1, "Fill Syndrome", ptr->fill_syndrome);
454 printf(fmt1, "Interrupt Status Reg.", ptr->isr);
455 printf("\n");
456 printf(fmt1, "Whami Reg.", ptr->whami);
457 printf(fmt1, "Sys. Env. Reg.", ptr->sys_env);
458 printf(fmt1, "MCPCIA Regs.", ptr->mcpcia_regs);
459 printf(fmt1, "PCI Rev. Reg.", ptr->pci_rev);
460 printf(fmt1, "MC_ERR0 Reg.", ptr->mc_err0);
461 printf(fmt1, "MC_ERR1 Reg.", ptr->mc_err1);
462 printf(fmt1, "CAP_ERR Reg.", ptr->cap_err);
463 printf(fmt1, "MDPA_STAT Reg.", ptr->mdpa_stat);
464 printf(fmt1, "MDPA_SYN Reg.", ptr->mdpa_syn);
465 printf(fmt1, "MDPB_STAT Reg.", ptr->mdpb_stat);
466 printf(fmt1, "MDPB_SYN Reg.", ptr->mdpb_syn);
467
468 /*
469 * Clear error by rewriting register.
470 */
471 alpha_pal_wrmces(mces);
472 }
473
474 /*
475 * KN300 specific machine check handler
476 */
477
478 static void
kn300_mcheck(unsigned long mces,unsigned long type,unsigned long logout,struct trapframe * framep)479 kn300_mcheck(unsigned long mces, unsigned long type, unsigned long logout, struct trapframe *framep)
480 {
481 struct mchkinfo *mcp;
482 static const char *fmt1 = " %-25s = 0x%l016x\n";
483 int i;
484 mc_hdr_ev5 *hdr;
485 mc_uc_ev5 *ptr;
486 struct mcpcia_iodsnap *iodsnp;
487
488 /*
489 * If we expected a machine check, just go handle it in common code.
490 */
491 mcp = &curcpu()->ci_mcinfo;
492 if (mcp->mc_expected) {
493 machine_check(mces, framep, type, logout);
494 return;
495 }
496
497 hdr = (mc_hdr_ev5 *) logout;
498 ptr = (mc_uc_ev5 *) (logout + sizeof (*hdr));
499 ev5_logout_print(hdr, ptr);
500
501 iodsnp = (struct mcpcia_iodsnap *) ((unsigned long) hdr +
502 (unsigned long) hdr->la_system_offset);
503 for (i = 0; i < MCPCIA_PER_MCBUS; i++, iodsnp++) {
504 if (!IS_MCPCIA_MAGIC(iodsnp->pci_rev)) {
505 continue;
506 }
507 printf(" IOD %d register dump:\n", i);
508 printf(fmt1, "Base Addr of PCI bridge", iodsnp->base_addr);
509 printf(fmt1, "Whami Reg.", iodsnp->whami);
510 printf(fmt1, "Sys. Env. Reg.", iodsnp->sys_env);
511 printf(fmt1, "PCI Rev. Reg.", iodsnp->pci_rev);
512 printf(fmt1, "CAP_CTL Reg.", iodsnp->cap_ctrl);
513 printf(fmt1, "HAE_MEM Reg.", iodsnp->hae_mem);
514 printf(fmt1, "HAE_IO Reg.", iodsnp->hae_io);
515 printf(fmt1, "INT_CTL Reg.", iodsnp->int_ctl);
516 printf(fmt1, "INT_REG Reg.", iodsnp->int_reg);
517 printf(fmt1, "INT_MASK0 Reg.", iodsnp->int_mask0);
518 printf(fmt1, "INT_MASK1 Reg.", iodsnp->int_mask1);
519 printf(fmt1, "MC_ERR0 Reg.", iodsnp->mc_err0);
520 printf(fmt1, "MC_ERR1 Reg.", iodsnp->mc_err1);
521 printf(fmt1, "CAP_ERR Reg.", iodsnp->cap_err);
522 printf(fmt1, "PCI_ERR1 Reg.", iodsnp->pci_err1);
523 printf(fmt1, "MDPA_STAT Reg.", iodsnp->mdpa_stat);
524 printf(fmt1, "MDPA_SYN Reg.", iodsnp->mdpa_syn);
525 printf(fmt1, "MDPB_STAT Reg.", iodsnp->mdpb_stat);
526 printf(fmt1, "MDPB_SYN Reg.", iodsnp->mdpb_syn);
527
528 }
529 /*
530 * Now that we've printed all sorts of useful information
531 * and have decided that we really can't do any more to
532 * respond to the error, go on to the common code for
533 * final disposition. Usually this means that we die.
534 */
535 /*
536 * XXX: HANDLE PCI ERRORS HERE?
537 */
538 machine_check(mces, framep, type, logout);
539 }
540
541 static void
dec_kn300_mcheck_handler(unsigned long mces,struct trapframe * framep,unsigned long vector,unsigned long param)542 dec_kn300_mcheck_handler(unsigned long mces, struct trapframe *framep, unsigned long vector, unsigned long param)
543 {
544 switch (vector) {
545 case ALPHA_SYS_ERROR:
546 case ALPHA_PROC_ERROR:
547 kn300_softerr(mces, vector, param, framep);
548 break;
549
550 case ALPHA_SYS_MCHECK:
551 case ALPHA_PROC_MCHECK:
552 kn300_mcheck(mces, vector, param, framep);
553 break;
554 default:
555 printf("KN300_MCHECK: unknown check vector 0x%lx\n", vector);
556 machine_check(mces, framep, vector, param);
557 break;
558 }
559 }
560