xref: /illumos-gate/usr/src/uts/intel/io/intel_nb5000/nb5000_init.c (revision 8c69cc8fbe729fa7b091e901c4b50508ccc6bb33)
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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24  */
25 
26 #include <sys/types.h>
27 #include <sys/cmn_err.h>
28 #include <sys/errno.h>
29 #include <sys/log.h>
30 #include <sys/systm.h>
31 #include <sys/modctl.h>
32 #include <sys/errorq.h>
33 #include <sys/controlregs.h>
34 #include <sys/fm/util.h>
35 #include <sys/fm/protocol.h>
36 #include <sys/sysevent.h>
37 #include <sys/pghw.h>
38 #include <sys/cyclic.h>
39 #include <sys/pci_cfgspace.h>
40 #include <sys/mc_intel.h>
41 #include <sys/smbios.h>
42 #include <sys/pci.h>
43 #include <sys/pcie.h>
44 #include "nb5000.h"
45 #include "nb_log.h"
46 #include "dimm_phys.h"
47 #include "rank.h"
48 
49 int nb_hw_memory_scrub_enable = 1;
50 static int nb_sw_scrub_disabled = 0;
51 
52 int nb_5000_memory_controller = 0;
53 int nb_number_memory_controllers = NB_5000_MAX_MEM_CONTROLLERS;
54 int nb_channels_per_branch = NB_MAX_CHANNELS_PER_BRANCH;
55 int nb_dimms_per_channel = 0;
56 
57 nb_dimm_t **nb_dimms;
58 int nb_ndimm;
59 uint32_t nb_chipset;
60 enum nb_memory_mode nb_mode;
61 bank_select_t nb_banks[NB_MAX_MEM_BRANCH_SELECT];
62 rank_select_t nb_ranks[NB_5000_MAX_MEM_CONTROLLERS][NB_MAX_MEM_RANK_SELECT];
63 uint32_t top_of_low_memory;
64 uint8_t spare_rank[NB_5000_MAX_MEM_CONTROLLERS];
65 
66 extern int nb_no_smbios;
67 
68 errorq_t *nb_queue;
69 kmutex_t nb_mutex;
70 
71 static int nb_dimm_slots;
72 
73 static uint32_t nb_err0_int;
74 static uint32_t nb_err1_int;
75 static uint32_t nb_err2_int;
76 static uint32_t nb_mcerr_int;
77 static uint32_t nb_emask_int;
78 
79 static uint32_t nb_err0_fbd;
80 static uint32_t nb_err1_fbd;
81 static uint32_t nb_err2_fbd;
82 static uint32_t nb_mcerr_fbd;
83 static uint32_t nb_emask_fbd;
84 
85 static uint32_t nb_err0_mem;
86 static uint32_t nb_err1_mem;
87 static uint32_t nb_err2_mem;
88 static uint32_t nb_mcerr_mem;
89 static uint32_t nb_emask_mem;
90 
91 static uint16_t nb_err0_fsb;
92 static uint16_t nb_err1_fsb;
93 static uint16_t nb_err2_fsb;
94 static uint16_t nb_mcerr_fsb;
95 static uint16_t nb_emask_fsb;
96 
97 static uint16_t nb_err0_thr;
98 static uint16_t nb_err1_thr;
99 static uint16_t nb_err2_thr;
100 static uint16_t nb_mcerr_thr;
101 static uint16_t nb_emask_thr;
102 
103 static uint32_t	emask_uncor_pex[NB_PCI_DEV];
104 static uint32_t emask_cor_pex[NB_PCI_DEV];
105 static uint32_t emask_rp_pex[NB_PCI_DEV];
106 static uint32_t docmd_pex[NB_PCI_DEV];
107 static uint32_t uncerrsev[NB_PCI_DEV];
108 
109 static uint32_t l_mcerr_int;
110 static uint32_t l_mcerr_fbd;
111 static uint32_t l_mcerr_mem;
112 static uint16_t l_mcerr_fsb;
113 static uint16_t l_mcerr_thr;
114 
115 uint_t nb5000_emask_fbd = EMASK_5000_FBD_RES;
116 uint_t nb5400_emask_fbd = 0;
117 int nb5000_reset_emask_fbd = 1;
118 uint_t nb5000_mask_poll_fbd = EMASK_FBD_NF;
119 uint_t nb5000_mask_bios_fbd = EMASK_FBD_FATAL;
120 uint_t nb5400_mask_poll_fbd = EMASK_5400_FBD_NF;
121 uint_t nb5400_mask_bios_fbd = EMASK_5400_FBD_FATAL;
122 uint_t nb7300_mask_poll_fbd = EMASK_7300_FBD_NF;
123 uint_t nb7300_mask_bios_fbd = EMASK_7300_FBD_FATAL;
124 
125 int nb5100_reset_emask_mem = 1;
126 uint_t nb5100_mask_poll_mem = EMASK_MEM_NF;
127 
128 uint_t nb5000_emask_fsb = 0;
129 int nb5000_reset_emask_fsb = 1;
130 uint_t nb5000_mask_poll_fsb = EMASK_FSB_NF;
131 uint_t nb5000_mask_bios_fsb = EMASK_FSB_FATAL;
132 
133 uint_t nb5100_emask_int = EMASK_INT_5100;
134 uint_t nb5400_emask_int = EMASK_INT_5400;
135 
136 uint_t nb7300_emask_int = EMASK_INT_7300;
137 uint_t nb7300_emask_int_step0 = EMASK_INT_7300_STEP_0;
138 uint_t nb5000_emask_int = EMASK_INT_5000;
139 int nb5000_reset_emask_int = 1;
140 uint_t nb5000_mask_poll_int = EMASK_INT_NF;
141 uint_t nb5000_mask_bios_int = EMASK_INT_FATAL;
142 uint_t nb5100_mask_poll_int = EMASK_INT_5100_NF;
143 uint_t nb5100_mask_bios_int = EMASK_INT_5100_FATAL;
144 
145 uint_t nb_mask_poll_thr = EMASK_THR_NF;
146 uint_t nb_mask_bios_thr = EMASK_THR_FATAL;
147 
148 int nb5000_reset_uncor_pex = 0;
149 uint_t nb5000_mask_uncor_pex = 0;
150 int nb5000_reset_cor_pex = 0;
151 uint_t nb5000_mask_cor_pex = 0xffffffff;
152 uint32_t nb5000_rp_pex = 0x1;
153 
154 int nb_mask_mc_set;
155 
156 typedef struct find_dimm_label {
157 	void (*label_function)(int, char *, int);
158 } find_dimm_label_t;
159 
160 static void x8450_dimm_label(int, char *, int);
161 static void cp3250_dimm_label(int, char *, int);
162 
163 static struct platform_label {
164 	const char *sys_vendor;		/* SMB_TYPE_SYSTEM vendor prefix */
165 	const char *sys_product;	/* SMB_TYPE_SYSTEM product prefix */
166 	find_dimm_label_t dimm_label;
167 	int dimms_per_channel;
168 } platform_label[] = {
169 	{ "SUN MICROSYSTEMS", "SUN BLADE X8450 SERVER MODULE",
170 	    x8450_dimm_label, 8 },
171 	{ "MiTAC,Shunde", "CP3250", cp3250_dimm_label, 0 },
172 	{ NULL, NULL, NULL, 0 }
173 };
174 
175 static unsigned short
176 read_spd(int bus)
177 {
178 	unsigned short rt = 0;
179 	int branch = bus >> 1;
180 	int channel = bus & 1;
181 
182 	rt = SPD_RD(branch, channel);
183 
184 	return (rt);
185 }
186 
187 static void
188 write_spdcmd(int bus, uint32_t val)
189 {
190 	int branch = bus >> 1;
191 	int channel = bus & 1;
192 	SPDCMD_WR(branch, channel, val);
193 }
194 
195 static int
196 read_spd_eeprom(int bus, int slave, int addr)
197 {
198 	int retry = 4;
199 	int wait;
200 	int spd;
201 	uint32_t cmd;
202 
203 	for (;;) {
204 		wait = 1000;
205 		for (;;) {
206 			spd = read_spd(bus);
207 			if ((spd & SPD_BUSY) == 0)
208 				break;
209 			if (--wait == 0)
210 				return (-1);
211 			drv_usecwait(10);
212 		}
213 		cmd = SPD_EEPROM_WRITE | SPD_ADDR(slave, addr);
214 		write_spdcmd(bus, cmd);
215 		wait = 1000;
216 		for (;;) {
217 			spd = read_spd(bus);
218 			if ((spd & SPD_BUSY) == 0)
219 				break;
220 			if (--wait == 0) {
221 				spd = SPD_BUS_ERROR;
222 				break;
223 			}
224 			drv_usecwait(10);
225 		}
226 		while ((spd & SPD_BUS_ERROR) == 0 &&
227 		    (spd & (SPD_READ_DATA_VALID|SPD_BUSY)) !=
228 		    SPD_READ_DATA_VALID) {
229 			spd = read_spd(bus);
230 			if (--wait == 0)
231 				return (-1);
232 		}
233 		if ((spd & SPD_BUS_ERROR) == 0)
234 			break;
235 		if (--retry == 0)
236 			return (-1);
237 	}
238 	return (spd & 0xff);
239 }
240 
241 static void
242 nb_fini()
243 {
244 	int i, j;
245 	int nchannels = nb_number_memory_controllers * nb_channels_per_branch;
246 	nb_dimm_t **dimmpp;
247 	nb_dimm_t *dimmp;
248 
249 	dimmpp = nb_dimms;
250 	for (i = 0; i < nchannels; i++) {
251 		for (j = 0; j < nb_dimms_per_channel; j++) {
252 			dimmp = *dimmpp;
253 			if (dimmp) {
254 				kmem_free(dimmp, sizeof (nb_dimm_t));
255 				*dimmpp = NULL;
256 			}
257 			dimmpp++;
258 		}
259 	}
260 	kmem_free(nb_dimms, sizeof (nb_dimm_t *) * nb_dimm_slots);
261 	nb_dimms = NULL;
262 	dimm_fini();
263 }
264 
265 void
266 nb_scrubber_enable()
267 {
268 	uint32_t mc;
269 
270 	if (!nb_hw_memory_scrub_enable)
271 		return;
272 
273 	mc = MC_RD();
274 	if ((mc & MC_MIRROR) != 0) /* mirror mode */
275 		mc |= MC_PATROL_SCRUB;
276 	else
277 		mc |= MC_PATROL_SCRUB|MC_DEMAND_SCRUB;
278 	MC_WR(mc);
279 
280 	if (nb_sw_scrub_disabled++)
281 		cmi_mc_sw_memscrub_disable();
282 }
283 
284 static void
285 fbd_eeprom(int channel, int dimm, nb_dimm_t *dp)
286 {
287 	int i, t;
288 	int spd_sz;
289 
290 	t = read_spd_eeprom(channel, dimm, 0) & 0xf;
291 	if (t == 1)
292 		spd_sz = 128;
293 	else if (t == 2)
294 		spd_sz = 176;
295 	else
296 		spd_sz = 256;
297 	dp->manufacture_id = read_spd_eeprom(channel, dimm, 117) |
298 	    (read_spd_eeprom(channel, dimm, 118) << 8);
299 	dp->manufacture_location = read_spd_eeprom(channel, dimm, 119);
300 	dp->serial_number =
301 	    (read_spd_eeprom(channel, dimm, 122) << 24) |
302 	    (read_spd_eeprom(channel, dimm, 123) << 16) |
303 	    (read_spd_eeprom(channel, dimm, 124) << 8) |
304 	    read_spd_eeprom(channel, dimm, 125);
305 	t = read_spd_eeprom(channel, dimm, 121);
306 	dp->manufacture_week = (t >> 4) * 10 + (t & 0xf);
307 	dp->manufacture_year = read_spd_eeprom(channel, dimm, 120);
308 	if (spd_sz > 128) {
309 		for (i = 0; i < sizeof (dp->part_number); i++) {
310 			dp->part_number[i] =
311 			    read_spd_eeprom(channel, dimm, 128 + i);
312 		}
313 		for (i = 0; i < sizeof (dp->revision); i++) {
314 			dp->revision[i] =
315 			    read_spd_eeprom(channel, dimm, 146 + i);
316 		}
317 	}
318 }
319 
320 /* read the manR of the DDR2 dimm */
321 static void
322 ddr2_eeprom(int channel, int dimm, nb_dimm_t *dp)
323 {
324 	int i, t;
325 	int slave;
326 
327 	slave = channel & 0x1 ? dimm + 4 : dimm;
328 
329 	/* byte[3]: number of row addresses */
330 	dp->nrow = read_spd_eeprom(channel, slave, 3) & 0x1f;
331 
332 	/* byte[4]: number of column addresses */
333 	dp->ncolumn = read_spd_eeprom(channel, slave, 4) & 0xf;
334 
335 	/* byte[5]: numranks; 0 means one rank */
336 	dp->nranks = (read_spd_eeprom(channel, slave, 5) & 0x3) + 1;
337 
338 	/* byte[6]: data width */
339 	dp->width = (read_spd_eeprom(channel, slave, 6) >> 5) << 2;
340 
341 	/* byte[17]: number of banks */
342 	dp->nbanks = read_spd_eeprom(channel, slave, 17);
343 
344 	dp->dimm_size = DIMMSIZE(dp->nrow, dp->ncolumn, dp->nranks, dp->nbanks,
345 	    dp->width);
346 
347 	/* manufacture-id - byte[64-65] */
348 	dp->manufacture_id = read_spd_eeprom(channel, slave, 64) |
349 	    (read_spd_eeprom(channel, dimm, 65) << 8);
350 
351 	/* location - byte[72] */
352 	dp->manufacture_location = read_spd_eeprom(channel, slave, 72);
353 
354 	/* serial number - byte[95-98] */
355 	dp->serial_number =
356 	    (read_spd_eeprom(channel, slave, 98) << 24) |
357 	    (read_spd_eeprom(channel, slave, 97) << 16) |
358 	    (read_spd_eeprom(channel, slave, 96) << 8) |
359 	    read_spd_eeprom(channel, slave, 95);
360 
361 	/* week - byte[94] */
362 	t = read_spd_eeprom(channel, slave, 94);
363 	dp->manufacture_week = (t >> 4) * 10 + (t & 0xf);
364 	/* week - byte[93] */
365 	t = read_spd_eeprom(channel, slave, 93);
366 	dp->manufacture_year = (t >> 4) * 10 + (t & 0xf) + 2000;
367 
368 	/* part number - byte[73-81] */
369 	for (i = 0; i < 8; i++) {
370 		dp->part_number[i] = read_spd_eeprom(channel, slave, 73 + i);
371 	}
372 
373 	/* revision - byte[91-92] */
374 	for (i = 0; i < 2; i++) {
375 		dp->revision[i] = read_spd_eeprom(channel, slave, 91 + i);
376 	}
377 }
378 
379 static boolean_t
380 nb_dimm_present(int channel, int dimm)
381 {
382 	boolean_t rc = B_FALSE;
383 
384 	if (nb_chipset == INTEL_NB_5100) {
385 		int t, slave;
386 		slave = channel & 0x1 ? dimm + 4 : dimm;
387 		/* read the type field from the dimm and check for DDR2 type */
388 		if ((t = read_spd_eeprom(channel, slave, SPD_MEM_TYPE)) == -1)
389 			return (B_FALSE);
390 		rc = (t & 0xf) == SPD_DDR2;
391 	} else {
392 		rc = MTR_PRESENT(MTR_RD(channel, dimm));
393 	}
394 
395 	return (rc);
396 }
397 
398 static nb_dimm_t *
399 nb_ddr2_dimm_init(int channel, int dimm, int start_rank)
400 {
401 	nb_dimm_t *dp;
402 
403 	if (nb_dimm_present(channel, dimm) == B_FALSE)
404 		return (NULL);
405 
406 	dp = kmem_zalloc(sizeof (nb_dimm_t), KM_SLEEP);
407 
408 	ddr2_eeprom(channel, dimm, dp);
409 
410 	/* The 1st rank of the dimm takes on this value */
411 	dp->start_rank = (uint8_t)start_rank;
412 
413 	dp->mtr_present = 1;
414 
415 	return (dp);
416 }
417 
418 static nb_dimm_t *
419 nb_fbd_dimm_init(int channel, int dimm, uint16_t mtr)
420 {
421 	nb_dimm_t *dp;
422 	int t;
423 
424 	if (MTR_PRESENT(mtr) == 0)
425 		return (NULL);
426 	t = read_spd_eeprom(channel, dimm, SPD_MEM_TYPE) & 0xf;
427 
428 	/* check for the dimm type */
429 	if (t != SPD_FBDIMM)
430 		return (NULL);
431 
432 	dp = kmem_zalloc(sizeof (nb_dimm_t), KM_SLEEP);
433 
434 	fbd_eeprom(channel, dimm, dp);
435 
436 	dp->mtr_present = MTR_PRESENT(mtr);
437 	dp->start_rank = dimm << 1;
438 	dp->nranks = MTR_NUMRANK(mtr);
439 	dp->nbanks = MTR_NUMBANK(mtr);
440 	dp->ncolumn = MTR_NUMCOL(mtr);
441 	dp->nrow = MTR_NUMROW(mtr);
442 	dp->width = MTR_WIDTH(mtr);
443 	dp->dimm_size = MTR_DIMMSIZE(mtr);
444 
445 	return (dp);
446 }
447 
448 static uint64_t
449 mc_range(int controller, uint64_t base)
450 {
451 	int i;
452 	uint64_t limit = 0;
453 
454 	for (i = 0; i < NB_MEM_BRANCH_SELECT; i++) {
455 		if (nb_banks[i].way[controller] && base >= nb_banks[i].base &&
456 		    base < nb_banks[i].limit) {
457 			limit = nb_banks[i].limit;
458 			if (base <= top_of_low_memory &&
459 			    limit > top_of_low_memory) {
460 				limit -= TLOW_MAX - top_of_low_memory;
461 			}
462 			if (nb_banks[i].way[0] && nb_banks[i].way[1] &&
463 			    nb_mode != NB_MEMORY_MIRROR) {
464 				limit = limit / 2;
465 			}
466 		}
467 	}
468 	return (limit);
469 }
470 
471 void
472 nb_mc_init()
473 {
474 	uint16_t tolm;
475 	uint16_t mir;
476 	uint32_t hole_base;
477 	uint32_t hole_size;
478 	uint32_t dmir;
479 	uint64_t base;
480 	uint64_t limit;
481 	uint8_t way0, way1, rank0, rank1, rank2, rank3, branch_interleave;
482 	int i, j, k;
483 	uint8_t interleave;
484 
485 	base = 0;
486 	tolm = TOLM_RD();
487 	top_of_low_memory = ((uint32_t)(tolm >> 12) & 0xf) << 28;
488 	for (i = 0; i < NB_MEM_BRANCH_SELECT; i++) {
489 		mir = MIR_RD(i);
490 		limit = (uint64_t)(mir >> 4) << 28;
491 		way0 = mir & 1;
492 		way1 = (mir >> 1) & 1;
493 		if (way0 == 0 && way1 == 0) {
494 			way0 = 1;
495 			way1 = 1;
496 		}
497 		if (limit > top_of_low_memory)
498 			limit += TLOW_MAX - top_of_low_memory;
499 		nb_banks[i].base = base;
500 		nb_banks[i].limit = limit;
501 		nb_banks[i].way[0] = way0;
502 		nb_banks[i].way[1] = way1;
503 		base = limit;
504 	}
505 	for (i = 0; i < nb_number_memory_controllers; i++) {
506 		base = 0;
507 
508 		for (j = 0; j < NB_MEM_RANK_SELECT; j++) {
509 			dmir = DMIR_RD(i, j);
510 			limit = ((uint64_t)(dmir >> 16) & 0xff) << 28;
511 			if (limit == 0) {
512 				limit = mc_range(i, base);
513 			}
514 			branch_interleave = 0;
515 			hole_base = 0;
516 			hole_size = 0;
517 			DMIR_RANKS(dmir, rank0, rank1, rank2, rank3);
518 			if (rank0 == rank1)
519 				interleave = 1;
520 			else if (rank0 == rank2)
521 				interleave = 2;
522 			else
523 				interleave = 4;
524 			if (nb_mode != NB_MEMORY_MIRROR &&
525 			    nb_mode != NB_MEMORY_SINGLE_CHANNEL) {
526 				for (k = 0; k < NB_MEM_BRANCH_SELECT; k++) {
527 					if (base >= nb_banks[k].base &&
528 					    base < nb_banks[k].limit) {
529 						if (nb_banks[i].way[0] &&
530 						    nb_banks[i].way[1]) {
531 							interleave *= 2;
532 							limit *= 2;
533 							branch_interleave = 1;
534 						}
535 						break;
536 					}
537 				}
538 			}
539 			if (base < top_of_low_memory &&
540 			    limit > top_of_low_memory) {
541 				hole_base = top_of_low_memory;
542 				hole_size = TLOW_MAX - top_of_low_memory;
543 				limit += hole_size;
544 			} else if (base > top_of_low_memory) {
545 				limit += TLOW_MAX - top_of_low_memory;
546 			}
547 			nb_ranks[i][j].base = base;
548 			nb_ranks[i][j].limit = limit;
549 			nb_ranks[i][j].rank[0] = rank0;
550 			nb_ranks[i][j].rank[1] = rank1;
551 			nb_ranks[i][j].rank[2] = rank2;
552 			nb_ranks[i][j].rank[3] = rank3;
553 			nb_ranks[i][j].interleave = interleave;
554 			nb_ranks[i][j].branch_interleave = branch_interleave;
555 			nb_ranks[i][j].hole_base = hole_base;
556 			nb_ranks[i][j].hole_size = hole_size;
557 			if (limit > base) {
558 				if (rank0 != rank1) {
559 					dimm_add_rank(i, rank1,
560 					    branch_interleave, 1, base,
561 					    hole_base, hole_size, interleave,
562 					    limit);
563 					if (rank0 != rank2) {
564 						dimm_add_rank(i, rank2,
565 						    branch_interleave, 2, base,
566 						    hole_base, hole_size,
567 						    interleave, limit);
568 						dimm_add_rank(i, rank3,
569 						    branch_interleave, 3, base,
570 						    hole_base, hole_size,
571 						    interleave, limit);
572 					}
573 				}
574 			}
575 			base = limit;
576 		}
577 	}
578 }
579 
580 void
581 nb_used_spare_rank(int branch, int bad_rank)
582 {
583 	int i;
584 	int j;
585 
586 	for (i = 0; i < NB_MEM_RANK_SELECT; i++) {
587 		for (j = 0; j < NB_RANKS_IN_SELECT; j++) {
588 			if (nb_ranks[branch][i].rank[j] == bad_rank) {
589 				nb_ranks[branch][i].rank[j] =
590 				    spare_rank[branch];
591 				i = NB_MEM_RANK_SELECT;
592 				break;
593 			}
594 		}
595 	}
596 }
597 
598 find_dimm_label_t *
599 find_dimms_per_channel()
600 {
601 	struct platform_label *pl;
602 	smbios_info_t si;
603 	smbios_system_t sy;
604 	id_t id;
605 	int i, j;
606 	find_dimm_label_t *rt = NULL;
607 
608 	if (ksmbios != NULL && nb_no_smbios == 0) {
609 		if ((id = smbios_info_system(ksmbios, &sy)) != SMB_ERR &&
610 		    smbios_info_common(ksmbios, id, &si) != SMB_ERR) {
611 			for (pl = platform_label; pl->sys_vendor; pl++) {
612 				if (strncmp(pl->sys_vendor,
613 				    si.smbi_manufacturer,
614 				    strlen(pl->sys_vendor)) == 0 &&
615 				    strncmp(pl->sys_product, si.smbi_product,
616 				    strlen(pl->sys_product)) == 0) {
617 					nb_dimms_per_channel =
618 					    pl->dimms_per_channel;
619 					rt = &pl->dimm_label;
620 					break;
621 				}
622 			}
623 		}
624 	}
625 	if (nb_dimms_per_channel == 0) {
626 		/*
627 		 * Scan all memory channels if we find a channel which has more
628 		 * dimms then we have seen before set nb_dimms_per_channel to
629 		 * the number of dimms on the channel
630 		 */
631 		for (i = 0; i < nb_number_memory_controllers; i++) {
632 			for (j = nb_dimms_per_channel;
633 			    j < NB_MAX_DIMMS_PER_CHANNEL; j++) {
634 				if (nb_dimm_present(i, j))
635 					nb_dimms_per_channel = j + 1;
636 			}
637 		}
638 	}
639 	return (rt);
640 }
641 
642 struct smb_dimm_rec {
643 	int dimms;
644 	int slots;
645 	int populated;
646 	nb_dimm_t **dimmpp;
647 };
648 
649 static int
650 dimm_label(smbios_hdl_t *shp, const smbios_struct_t *sp, void *arg)
651 {
652 	struct smb_dimm_rec *rp = (struct smb_dimm_rec *)arg;
653 	nb_dimm_t ***dimmpp;
654 	nb_dimm_t *dimmp;
655 	smbios_memdevice_t md;
656 
657 	dimmpp = &rp->dimmpp;
658 	if (sp->smbstr_type == SMB_TYPE_MEMDEVICE) {
659 		if (*dimmpp >= &nb_dimms[nb_dimm_slots])
660 			return (-1);
661 		dimmp = **dimmpp;
662 		if (smbios_info_memdevice(shp, sp->smbstr_id, &md) == 0 &&
663 		    md.smbmd_dloc != NULL) {
664 			if (md.smbmd_size) {
665 				if (dimmp == NULL &&
666 				    (rp->slots == nb_dimm_slots ||
667 				    rp->dimms < rp->populated)) {
668 					(*dimmpp)++;
669 					return (0);
670 				}
671 				/*
672 				 * if there is no physical dimm for this smbios
673 				 * record it is because this system has less
674 				 * physical slots than the controller supports
675 				 * so skip empty slots to find the slot this
676 				 * smbios record belongs too
677 				 */
678 				while (dimmp == NULL) {
679 					(*dimmpp)++;
680 					if (*dimmpp >= &nb_dimms[nb_dimm_slots])
681 						return (-1);
682 					dimmp = **dimmpp;
683 				}
684 				(void) snprintf(dimmp->label,
685 				    sizeof (dimmp->label), "%s", md.smbmd_dloc);
686 				(*dimmpp)++;
687 			}
688 		}
689 	}
690 	return (0);
691 }
692 
693 static int
694 check_memdevice(smbios_hdl_t *shp, const smbios_struct_t *sp, void *arg)
695 {
696 	struct smb_dimm_rec *rp = (struct smb_dimm_rec *)arg;
697 	smbios_memdevice_t md;
698 
699 	if (sp->smbstr_type == SMB_TYPE_MEMDEVICE) {
700 		if (smbios_info_memdevice(shp, sp->smbstr_id, &md) == 0) {
701 			rp->slots++;
702 			if (md.smbmd_size) {
703 				rp->populated++;
704 			}
705 		}
706 	}
707 	return (0);
708 }
709 
710 void
711 nb_smbios()
712 {
713 	struct smb_dimm_rec r;
714 	int i;
715 
716 	if (ksmbios != NULL && nb_no_smbios == 0) {
717 		r.dimms = 0;
718 		r.slots = 0;
719 		r.populated = 0;
720 		r.dimmpp = nb_dimms;
721 		for (i = 0; i < nb_dimm_slots; i++) {
722 			if (nb_dimms[i] != NULL)
723 				r.dimms++;
724 		}
725 		(void) smbios_iter(ksmbios, check_memdevice, &r);
726 		(void) smbios_iter(ksmbios, dimm_label, &r);
727 	}
728 }
729 
730 static void
731 x8450_dimm_label(int dimm, char *label, int label_sz)
732 {
733 	int channel = dimm >> 3;
734 
735 	dimm = dimm & 0x7;
736 	(void) snprintf(label, label_sz, "D%d", (dimm * 4) + channel);
737 }
738 
739 /*
740  * CP3250 DIMM labels
741  * Channel   Dimm   Label
742  *       0      0      A0
743  *       1      0      B0
744  *       0      1      A1
745  *       1      1      B1
746  *       0      2      A2
747  *       1      2      B2
748  */
749 static void
750 cp3250_dimm_label(int dimm, char *label, int label_sz)
751 {
752 	int channel = dimm / nb_dimms_per_channel;
753 
754 	dimm = dimm % nb_dimms_per_channel;
755 	(void) snprintf(label, label_sz, "%c%d", channel == 0 ? 'A' : 'B',
756 	    dimm);
757 }
758 
759 /*
760  * Map the rank id to dimm id of a channel
761  * For the 5100 chipset, walk through the dimm list of channel the check if
762  * the given rank id is within the rank range assigned to the dimm.
763  * For other chipsets, the dimm is rank/2.
764  */
765 int
766 nb_rank2dimm(int channel, int rank)
767 {
768 	int i;
769 	nb_dimm_t **dimmpp = nb_dimms;
770 
771 	if (nb_chipset != INTEL_NB_5100)
772 		return (rank >> 1);
773 
774 	dimmpp += channel * nb_dimms_per_channel;
775 	for (i = 0; i < nb_dimms_per_channel; i++) {
776 		if ((rank >= dimmpp[i]->start_rank) &&
777 		    (rank < dimmpp[i]->start_rank + dimmpp[i]->nranks)) {
778 			return (i);
779 		}
780 	}
781 	return (-1);
782 }
783 
784 static void
785 nb_ddr2_dimms_init(find_dimm_label_t *label_function)
786 {
787 	int i, j;
788 	int start_rank;
789 	uint32_t spcpc;
790 	uint8_t spcps;
791 	nb_dimm_t **dimmpp;
792 
793 	nb_dimm_slots = nb_number_memory_controllers * nb_channels_per_branch *
794 	    nb_dimms_per_channel;
795 	nb_dimms = (nb_dimm_t **)kmem_zalloc(sizeof (nb_dimm_t *) *
796 	    nb_dimm_slots, KM_SLEEP);
797 	dimmpp = nb_dimms;
798 	nb_mode = NB_MEMORY_NORMAL;
799 	for (i = 0; i < nb_number_memory_controllers; i++) {
800 		if (nb_mode == NB_MEMORY_NORMAL) {
801 			spcpc = SPCPC_RD(i);
802 			spcps = SPCPS_RD(i);
803 			if ((spcpc & SPCPC_SPARE_ENABLE) != 0 &&
804 			    (spcps & SPCPS_SPARE_DEPLOYED) != 0)
805 				nb_mode = NB_MEMORY_SPARE_RANK;
806 			spare_rank[i] = SPCPC_SPRANK(spcpc);
807 		}
808 
809 		/* The 1st dimm of a channel starts at rank 0 */
810 		start_rank = 0;
811 
812 		for (j = 0; j < nb_dimms_per_channel; j++) {
813 			dimmpp[j] = nb_ddr2_dimm_init(i, j, start_rank);
814 			if (dimmpp[j]) {
815 				nb_ndimm ++;
816 				if (label_function) {
817 					label_function->label_function(
818 					    (i * nb_dimms_per_channel) + j,
819 					    dimmpp[j]->label,
820 					    sizeof (dimmpp[j]->label));
821 				}
822 				start_rank += dimmpp[j]->nranks;
823 				/*
824 				 * add an extra rank because
825 				 * single-ranked dimm still takes on two ranks.
826 				 */
827 				if (dimmpp[j]->nranks & 0x1)
828 					start_rank++;
829 				}
830 		}
831 		dimmpp += nb_dimms_per_channel;
832 	}
833 
834 	/*
835 	 * single channel is supported.
836 	 */
837 	if (nb_ndimm > 0 && nb_ndimm <= nb_dimms_per_channel) {
838 		nb_mode = NB_MEMORY_SINGLE_CHANNEL;
839 	}
840 }
841 
842 static void
843 nb_fbd_dimms_init(find_dimm_label_t *label_function)
844 {
845 	int i, j, k, l;
846 	uint16_t mtr;
847 	uint32_t mc, mca;
848 	uint32_t spcpc;
849 	uint8_t spcps;
850 	nb_dimm_t **dimmpp;
851 
852 	mca = MCA_RD();
853 	mc = MC_RD();
854 	if (mca & MCA_SCHDIMM)  /* single-channel mode */
855 		nb_mode = NB_MEMORY_SINGLE_CHANNEL;
856 	else if ((mc & MC_MIRROR) != 0) /* mirror mode */
857 		nb_mode = NB_MEMORY_MIRROR;
858 	else
859 		nb_mode = NB_MEMORY_NORMAL;
860 	nb_dimm_slots = nb_number_memory_controllers * 2 * nb_dimms_per_channel;
861 	nb_dimms = (nb_dimm_t **)kmem_zalloc(sizeof (nb_dimm_t *) *
862 	    nb_dimm_slots, KM_SLEEP);
863 	dimmpp = nb_dimms;
864 	for (i = 0; i < nb_number_memory_controllers; i++) {
865 		if (nb_mode == NB_MEMORY_NORMAL) {
866 			spcpc = SPCPC_RD(i);
867 			spcps = SPCPS_RD(i);
868 			if ((spcpc & SPCPC_SPARE_ENABLE) != 0 &&
869 			    (spcps & SPCPS_SPARE_DEPLOYED) != 0)
870 				nb_mode = NB_MEMORY_SPARE_RANK;
871 			spare_rank[i] = SPCPC_SPRANK(spcpc);
872 		}
873 		for (j = 0; j < nb_dimms_per_channel; j++) {
874 			mtr = MTR_RD(i, j);
875 			k = i * 2;
876 			dimmpp[j] = nb_fbd_dimm_init(k, j, mtr);
877 			if (dimmpp[j]) {
878 				nb_ndimm ++;
879 				if (label_function) {
880 					label_function->label_function(
881 					    (k * nb_dimms_per_channel) + j,
882 					    dimmpp[j]->label,
883 					    sizeof (dimmpp[j]->label));
884 				}
885 			}
886 			dimmpp[j + nb_dimms_per_channel] =
887 			    nb_fbd_dimm_init(k + 1, j, mtr);
888 			l = j + nb_dimms_per_channel;
889 			if (dimmpp[l]) {
890 				if (label_function) {
891 					label_function->label_function(
892 					    (k * nb_dimms_per_channel) + l,
893 					    dimmpp[l]->label,
894 					    sizeof (dimmpp[l]->label));
895 				}
896 				nb_ndimm ++;
897 			}
898 		}
899 		dimmpp += nb_dimms_per_channel * 2;
900 	}
901 }
902 
903 static void
904 nb_dimms_init(find_dimm_label_t *label_function)
905 {
906 	if (nb_chipset == INTEL_NB_5100)
907 		nb_ddr2_dimms_init(label_function);
908 	else
909 		nb_fbd_dimms_init(label_function);
910 
911 	if (label_function == NULL)
912 		nb_smbios();
913 }
914 
915 /* Setup the ESI port registers to enable SERR for southbridge */
916 static void
917 nb_pex_init()
918 {
919 	int i = 0; /* ESI port */
920 	uint16_t regw;
921 
922 	emask_uncor_pex[i] = EMASK_UNCOR_PEX_RD(i);
923 	emask_cor_pex[i] = EMASK_COR_PEX_RD(i);
924 	emask_rp_pex[i] = EMASK_RP_PEX_RD(i);
925 	docmd_pex[i] = PEX_ERR_DOCMD_RD(i);
926 	uncerrsev[i] = UNCERRSEV_RD(i);
927 
928 	if (nb5000_reset_uncor_pex)
929 		EMASK_UNCOR_PEX_WR(i, nb5000_mask_uncor_pex);
930 	if (nb5000_reset_cor_pex)
931 		EMASK_COR_PEX_WR(i, nb5000_mask_cor_pex);
932 	if (nb_chipset == INTEL_NB_5400) {
933 		/* disable masking of ERR pins used by DOCMD */
934 		PEX_ERR_PIN_MASK_WR(i, 0x10);
935 	}
936 
937 	/* RP error message (CE/NFE/FE) detect mask */
938 	EMASK_RP_PEX_WR(i, nb5000_rp_pex);
939 
940 	/* Command Register - Enable SERR */
941 	regw = nb_pci_getw(0, i, 0, PCI_CONF_COMM, 0);
942 	nb_pci_putw(0, i, 0, PCI_CONF_COMM,
943 	    regw | PCI_COMM_SERR_ENABLE);
944 
945 	/* Root Control Register - SERR on NFE/FE */
946 	PEXROOTCTL_WR(i, PCIE_ROOTCTL_SYS_ERR_ON_NFE_EN |
947 	    PCIE_ROOTCTL_SYS_ERR_ON_FE_EN);
948 
949 	/* AER UE Mask - Mask UR */
950 	UNCERRMSK_WR(i, PCIE_AER_UCE_UR);
951 }
952 
953 static void
954 nb_pex_fini()
955 {
956 	int i = 0; /* ESI port */
957 
958 	EMASK_UNCOR_PEX_WR(i, emask_uncor_pex[i]);
959 	EMASK_COR_PEX_WR(i, emask_cor_pex[i]);
960 	EMASK_RP_PEX_WR(i, emask_rp_pex[i]);
961 	PEX_ERR_DOCMD_WR(i, docmd_pex[i]);
962 
963 	if (nb5000_reset_uncor_pex)
964 		EMASK_UNCOR_PEX_WR(i, nb5000_mask_uncor_pex);
965 	if (nb5000_reset_cor_pex)
966 		EMASK_COR_PEX_WR(i, nb5000_mask_cor_pex);
967 }
968 
969 void
970 nb_int_init()
971 {
972 	uint32_t err0_int;
973 	uint32_t err1_int;
974 	uint32_t err2_int;
975 	uint32_t mcerr_int;
976 	uint32_t emask_int;
977 	uint32_t nb_mask_bios_int;
978 	uint32_t nb_mask_poll_int;
979 	uint16_t stepping;
980 
981 	if (nb_chipset == INTEL_NB_5100) {
982 		nb_mask_bios_int = nb5100_mask_bios_int;
983 		nb_mask_poll_int = nb5100_mask_poll_int;
984 	} else {
985 		nb_mask_bios_int = nb5000_mask_bios_int;
986 		nb_mask_poll_int = nb5000_mask_poll_int;
987 	}
988 	err0_int = ERR0_INT_RD();
989 	err1_int = ERR1_INT_RD();
990 	err2_int = ERR2_INT_RD();
991 	mcerr_int = MCERR_INT_RD();
992 	emask_int = EMASK_INT_RD();
993 
994 	nb_err0_int = err0_int;
995 	nb_err1_int = err1_int;
996 	nb_err2_int = err2_int;
997 	nb_mcerr_int = mcerr_int;
998 	nb_emask_int = emask_int;
999 
1000 	ERR0_INT_WR(ERR_INT_ALL);
1001 	ERR1_INT_WR(ERR_INT_ALL);
1002 	ERR2_INT_WR(ERR_INT_ALL);
1003 	MCERR_INT_WR(ERR_INT_ALL);
1004 	EMASK_INT_WR(ERR_INT_ALL);
1005 
1006 	mcerr_int &= ~nb_mask_bios_int;
1007 	mcerr_int |= nb_mask_bios_int & (~err0_int | ~err1_int | ~err2_int);
1008 	mcerr_int |= nb_mask_poll_int;
1009 	err0_int |= nb_mask_poll_int;
1010 	err1_int |= nb_mask_poll_int;
1011 	err2_int |= nb_mask_poll_int;
1012 
1013 	l_mcerr_int = mcerr_int;
1014 	ERR0_INT_WR(err0_int);
1015 	ERR1_INT_WR(err1_int);
1016 	ERR2_INT_WR(err2_int);
1017 	MCERR_INT_WR(mcerr_int);
1018 	if (nb5000_reset_emask_int) {
1019 		if (nb_chipset == INTEL_NB_7300) {
1020 			stepping = NB5000_STEPPING();
1021 			if (stepping == 0)
1022 				EMASK_5000_INT_WR(nb7300_emask_int_step0);
1023 			else
1024 				EMASK_5000_INT_WR(nb7300_emask_int);
1025 		} else if (nb_chipset == INTEL_NB_5400) {
1026 			EMASK_5400_INT_WR(nb5400_emask_int |
1027 			    (emask_int & EMASK_INT_RES));
1028 		} else if (nb_chipset == INTEL_NB_5100) {
1029 			EMASK_5000_INT_WR(nb5100_emask_int);
1030 		} else {
1031 			EMASK_5000_INT_WR(nb5000_emask_int);
1032 		}
1033 	} else {
1034 		EMASK_INT_WR(nb_emask_int);
1035 	}
1036 }
1037 
1038 void
1039 nb_int_fini()
1040 {
1041 	ERR0_INT_WR(ERR_INT_ALL);
1042 	ERR1_INT_WR(ERR_INT_ALL);
1043 	ERR2_INT_WR(ERR_INT_ALL);
1044 	MCERR_INT_WR(ERR_INT_ALL);
1045 	EMASK_INT_WR(ERR_INT_ALL);
1046 
1047 	ERR0_INT_WR(nb_err0_int);
1048 	ERR1_INT_WR(nb_err1_int);
1049 	ERR2_INT_WR(nb_err2_int);
1050 	MCERR_INT_WR(nb_mcerr_int);
1051 	EMASK_INT_WR(nb_emask_int);
1052 }
1053 
1054 void
1055 nb_int_mask_mc(uint32_t mc_mask_int)
1056 {
1057 	uint32_t emask_int;
1058 
1059 	emask_int = MCERR_INT_RD();
1060 	if ((emask_int & mc_mask_int) != mc_mask_int) {
1061 		MCERR_INT_WR(emask_int|mc_mask_int);
1062 		nb_mask_mc_set = 1;
1063 	}
1064 }
1065 
1066 static void
1067 nb_fbd_init()
1068 {
1069 	uint32_t err0_fbd;
1070 	uint32_t err1_fbd;
1071 	uint32_t err2_fbd;
1072 	uint32_t mcerr_fbd;
1073 	uint32_t emask_fbd;
1074 	uint32_t emask_bios_fbd;
1075 	uint32_t emask_poll_fbd;
1076 
1077 	err0_fbd = ERR0_FBD_RD();
1078 	err1_fbd = ERR1_FBD_RD();
1079 	err2_fbd = ERR2_FBD_RD();
1080 	mcerr_fbd = MCERR_FBD_RD();
1081 	emask_fbd = EMASK_FBD_RD();
1082 
1083 	nb_err0_fbd = err0_fbd;
1084 	nb_err1_fbd = err1_fbd;
1085 	nb_err2_fbd = err2_fbd;
1086 	nb_mcerr_fbd = mcerr_fbd;
1087 	nb_emask_fbd = emask_fbd;
1088 
1089 	ERR0_FBD_WR(0xffffffff);
1090 	ERR1_FBD_WR(0xffffffff);
1091 	ERR2_FBD_WR(0xffffffff);
1092 	MCERR_FBD_WR(0xffffffff);
1093 	EMASK_FBD_WR(0xffffffff);
1094 
1095 	if (nb_chipset == INTEL_NB_7300) {
1096 		if (nb_mode == NB_MEMORY_MIRROR) {
1097 			/* MCH 7300 errata 34 */
1098 			emask_bios_fbd = nb7300_mask_bios_fbd & ~EMASK_FBD_M23;
1099 			emask_poll_fbd = nb7300_mask_poll_fbd;
1100 			mcerr_fbd |= EMASK_FBD_M23;
1101 		} else {
1102 			emask_bios_fbd = nb7300_mask_bios_fbd;
1103 			emask_poll_fbd = nb7300_mask_poll_fbd;
1104 		}
1105 	} else if (nb_chipset == INTEL_NB_5400) {
1106 		emask_bios_fbd = nb5400_mask_bios_fbd;
1107 		emask_poll_fbd = nb5400_mask_poll_fbd;
1108 	} else {
1109 		emask_bios_fbd = nb5000_mask_bios_fbd;
1110 		emask_poll_fbd = nb5000_mask_poll_fbd;
1111 	}
1112 	mcerr_fbd &= ~emask_bios_fbd;
1113 	mcerr_fbd |= emask_bios_fbd & (~err0_fbd | ~err1_fbd | ~err2_fbd);
1114 	mcerr_fbd |= emask_poll_fbd;
1115 	err0_fbd |= emask_poll_fbd;
1116 	err1_fbd |= emask_poll_fbd;
1117 	err2_fbd |= emask_poll_fbd;
1118 
1119 	l_mcerr_fbd = mcerr_fbd;
1120 	ERR0_FBD_WR(err0_fbd);
1121 	ERR1_FBD_WR(err1_fbd);
1122 	ERR2_FBD_WR(err2_fbd);
1123 	MCERR_FBD_WR(mcerr_fbd);
1124 	if (nb5000_reset_emask_fbd) {
1125 		if (nb_chipset == INTEL_NB_5400)
1126 			EMASK_FBD_WR(nb5400_emask_fbd);
1127 		else
1128 			EMASK_FBD_WR(nb5000_emask_fbd);
1129 	} else {
1130 		EMASK_FBD_WR(nb_emask_fbd);
1131 	}
1132 }
1133 
1134 void
1135 nb_fbd_mask_mc(uint32_t mc_mask_fbd)
1136 {
1137 	uint32_t emask_fbd;
1138 
1139 	emask_fbd = MCERR_FBD_RD();
1140 	if ((emask_fbd & mc_mask_fbd) != mc_mask_fbd) {
1141 		MCERR_FBD_WR(emask_fbd|mc_mask_fbd);
1142 		nb_mask_mc_set = 1;
1143 	}
1144 }
1145 
1146 static void
1147 nb_fbd_fini()
1148 {
1149 	ERR0_FBD_WR(0xffffffff);
1150 	ERR1_FBD_WR(0xffffffff);
1151 	ERR2_FBD_WR(0xffffffff);
1152 	MCERR_FBD_WR(0xffffffff);
1153 	EMASK_FBD_WR(0xffffffff);
1154 
1155 	ERR0_FBD_WR(nb_err0_fbd);
1156 	ERR1_FBD_WR(nb_err1_fbd);
1157 	ERR2_FBD_WR(nb_err2_fbd);
1158 	MCERR_FBD_WR(nb_mcerr_fbd);
1159 	EMASK_FBD_WR(nb_emask_fbd);
1160 }
1161 
1162 static void
1163 nb_mem_init()
1164 {
1165 	uint32_t err0_mem;
1166 	uint32_t err1_mem;
1167 	uint32_t err2_mem;
1168 	uint32_t mcerr_mem;
1169 	uint32_t emask_mem;
1170 	uint32_t emask_poll_mem;
1171 
1172 	err0_mem = ERR0_MEM_RD();
1173 	err1_mem = ERR1_MEM_RD();
1174 	err2_mem = ERR2_MEM_RD();
1175 	mcerr_mem = MCERR_MEM_RD();
1176 	emask_mem = EMASK_MEM_RD();
1177 
1178 	nb_err0_mem = err0_mem;
1179 	nb_err1_mem = err1_mem;
1180 	nb_err2_mem = err2_mem;
1181 	nb_mcerr_mem = mcerr_mem;
1182 	nb_emask_mem = emask_mem;
1183 
1184 	ERR0_MEM_WR(0xffffffff);
1185 	ERR1_MEM_WR(0xffffffff);
1186 	ERR2_MEM_WR(0xffffffff);
1187 	MCERR_MEM_WR(0xffffffff);
1188 	EMASK_MEM_WR(0xffffffff);
1189 
1190 	emask_poll_mem = nb5100_mask_poll_mem;
1191 	mcerr_mem |= emask_poll_mem;
1192 	err0_mem |= emask_poll_mem;
1193 	err1_mem |= emask_poll_mem;
1194 	err2_mem |= emask_poll_mem;
1195 
1196 	l_mcerr_mem = mcerr_mem;
1197 	ERR0_MEM_WR(err0_mem);
1198 	ERR1_MEM_WR(err1_mem);
1199 	ERR2_MEM_WR(err2_mem);
1200 	MCERR_MEM_WR(mcerr_mem);
1201 	if (nb5100_reset_emask_mem) {
1202 		EMASK_MEM_WR(~nb5100_mask_poll_mem);
1203 	} else {
1204 		EMASK_MEM_WR(nb_emask_mem);
1205 	}
1206 }
1207 
1208 void
1209 nb_mem_mask_mc(uint32_t mc_mask_mem)
1210 {
1211 	uint32_t emask_mem;
1212 
1213 	emask_mem = MCERR_MEM_RD();
1214 	if ((emask_mem & mc_mask_mem) != mc_mask_mem) {
1215 		MCERR_MEM_WR(emask_mem|mc_mask_mem);
1216 		nb_mask_mc_set = 1;
1217 	}
1218 }
1219 
1220 static void
1221 nb_mem_fini()
1222 {
1223 	ERR0_MEM_WR(0xffffffff);
1224 	ERR1_MEM_WR(0xffffffff);
1225 	ERR2_MEM_WR(0xffffffff);
1226 	MCERR_MEM_WR(0xffffffff);
1227 	EMASK_MEM_WR(0xffffffff);
1228 
1229 	ERR0_MEM_WR(nb_err0_mem);
1230 	ERR1_MEM_WR(nb_err1_mem);
1231 	ERR2_MEM_WR(nb_err2_mem);
1232 	MCERR_MEM_WR(nb_mcerr_mem);
1233 	EMASK_MEM_WR(nb_emask_mem);
1234 }
1235 
1236 static void
1237 nb_fsb_init()
1238 {
1239 	uint16_t err0_fsb;
1240 	uint16_t err1_fsb;
1241 	uint16_t err2_fsb;
1242 	uint16_t mcerr_fsb;
1243 	uint16_t emask_fsb;
1244 
1245 	err0_fsb = ERR0_FSB_RD(0);
1246 	err1_fsb = ERR1_FSB_RD(0);
1247 	err2_fsb = ERR2_FSB_RD(0);
1248 	mcerr_fsb = MCERR_FSB_RD(0);
1249 	emask_fsb = EMASK_FSB_RD(0);
1250 
1251 	ERR0_FSB_WR(0, 0xffff);
1252 	ERR1_FSB_WR(0, 0xffff);
1253 	ERR2_FSB_WR(0, 0xffff);
1254 	MCERR_FSB_WR(0, 0xffff);
1255 	EMASK_FSB_WR(0, 0xffff);
1256 
1257 	ERR0_FSB_WR(1, 0xffff);
1258 	ERR1_FSB_WR(1, 0xffff);
1259 	ERR2_FSB_WR(1, 0xffff);
1260 	MCERR_FSB_WR(1, 0xffff);
1261 	EMASK_FSB_WR(1, 0xffff);
1262 
1263 	nb_err0_fsb = err0_fsb;
1264 	nb_err1_fsb = err1_fsb;
1265 	nb_err2_fsb = err2_fsb;
1266 	nb_mcerr_fsb = mcerr_fsb;
1267 	nb_emask_fsb = emask_fsb;
1268 
1269 	mcerr_fsb &= ~nb5000_mask_bios_fsb;
1270 	mcerr_fsb |= nb5000_mask_bios_fsb & (~err2_fsb | ~err1_fsb | ~err0_fsb);
1271 	mcerr_fsb |= nb5000_mask_poll_fsb;
1272 	err0_fsb |= nb5000_mask_poll_fsb;
1273 	err1_fsb |= nb5000_mask_poll_fsb;
1274 	err2_fsb |= nb5000_mask_poll_fsb;
1275 
1276 	l_mcerr_fsb = mcerr_fsb;
1277 	ERR0_FSB_WR(0, err0_fsb);
1278 	ERR1_FSB_WR(0, err1_fsb);
1279 	ERR2_FSB_WR(0, err2_fsb);
1280 	MCERR_FSB_WR(0, mcerr_fsb);
1281 	if (nb5000_reset_emask_fsb) {
1282 		EMASK_FSB_WR(0, nb5000_emask_fsb);
1283 	} else {
1284 		EMASK_FSB_WR(0, nb_emask_fsb);
1285 	}
1286 
1287 	ERR0_FSB_WR(1, err0_fsb);
1288 	ERR1_FSB_WR(1, err1_fsb);
1289 	ERR2_FSB_WR(1, err2_fsb);
1290 	MCERR_FSB_WR(1, mcerr_fsb);
1291 	if (nb5000_reset_emask_fsb) {
1292 		EMASK_FSB_WR(1, nb5000_emask_fsb);
1293 	} else {
1294 		EMASK_FSB_WR(1, nb_emask_fsb);
1295 	}
1296 
1297 	if (nb_chipset == INTEL_NB_7300) {
1298 		ERR0_FSB_WR(2, 0xffff);
1299 		ERR1_FSB_WR(2, 0xffff);
1300 		ERR2_FSB_WR(2, 0xffff);
1301 		MCERR_FSB_WR(2, 0xffff);
1302 		EMASK_FSB_WR(2, 0xffff);
1303 
1304 		ERR0_FSB_WR(3, 0xffff);
1305 		ERR1_FSB_WR(3, 0xffff);
1306 		ERR2_FSB_WR(3, 0xffff);
1307 		MCERR_FSB_WR(3, 0xffff);
1308 		EMASK_FSB_WR(3, 0xffff);
1309 
1310 		ERR0_FSB_WR(2, err0_fsb);
1311 		ERR1_FSB_WR(2, err1_fsb);
1312 		ERR2_FSB_WR(2, err2_fsb);
1313 		MCERR_FSB_WR(2, mcerr_fsb);
1314 		if (nb5000_reset_emask_fsb) {
1315 			EMASK_FSB_WR(2, nb5000_emask_fsb);
1316 		} else {
1317 			EMASK_FSB_WR(2, nb_emask_fsb);
1318 		}
1319 
1320 		ERR0_FSB_WR(3, err0_fsb);
1321 		ERR1_FSB_WR(3, err1_fsb);
1322 		ERR2_FSB_WR(3, err2_fsb);
1323 		MCERR_FSB_WR(3, mcerr_fsb);
1324 		if (nb5000_reset_emask_fsb) {
1325 			EMASK_FSB_WR(3, nb5000_emask_fsb);
1326 		} else {
1327 			EMASK_FSB_WR(3, nb_emask_fsb);
1328 		}
1329 	}
1330 }
1331 
1332 static void
1333 nb_fsb_fini() {
1334 	ERR0_FSB_WR(0, 0xffff);
1335 	ERR1_FSB_WR(0, 0xffff);
1336 	ERR2_FSB_WR(0, 0xffff);
1337 	MCERR_FSB_WR(0, 0xffff);
1338 	EMASK_FSB_WR(0, 0xffff);
1339 
1340 	ERR0_FSB_WR(0, nb_err0_fsb);
1341 	ERR1_FSB_WR(0, nb_err1_fsb);
1342 	ERR2_FSB_WR(0, nb_err2_fsb);
1343 	MCERR_FSB_WR(0, nb_mcerr_fsb);
1344 	EMASK_FSB_WR(0, nb_emask_fsb);
1345 
1346 	ERR0_FSB_WR(1, 0xffff);
1347 	ERR1_FSB_WR(1, 0xffff);
1348 	ERR2_FSB_WR(1, 0xffff);
1349 	MCERR_FSB_WR(1, 0xffff);
1350 	EMASK_FSB_WR(1, 0xffff);
1351 
1352 	ERR0_FSB_WR(1, nb_err0_fsb);
1353 	ERR1_FSB_WR(1, nb_err1_fsb);
1354 	ERR2_FSB_WR(1, nb_err2_fsb);
1355 	MCERR_FSB_WR(1, nb_mcerr_fsb);
1356 	EMASK_FSB_WR(1, nb_emask_fsb);
1357 
1358 	if (nb_chipset == INTEL_NB_7300) {
1359 		ERR0_FSB_WR(2, 0xffff);
1360 		ERR1_FSB_WR(2, 0xffff);
1361 		ERR2_FSB_WR(2, 0xffff);
1362 		MCERR_FSB_WR(2, 0xffff);
1363 		EMASK_FSB_WR(2, 0xffff);
1364 
1365 		ERR0_FSB_WR(2, nb_err0_fsb);
1366 		ERR1_FSB_WR(2, nb_err1_fsb);
1367 		ERR2_FSB_WR(2, nb_err2_fsb);
1368 		MCERR_FSB_WR(2, nb_mcerr_fsb);
1369 		EMASK_FSB_WR(2, nb_emask_fsb);
1370 
1371 		ERR0_FSB_WR(3, 0xffff);
1372 		ERR1_FSB_WR(3, 0xffff);
1373 		ERR2_FSB_WR(3, 0xffff);
1374 		MCERR_FSB_WR(3, 0xffff);
1375 		EMASK_FSB_WR(3, 0xffff);
1376 
1377 		ERR0_FSB_WR(3, nb_err0_fsb);
1378 		ERR1_FSB_WR(3, nb_err1_fsb);
1379 		ERR2_FSB_WR(3, nb_err2_fsb);
1380 		MCERR_FSB_WR(3, nb_mcerr_fsb);
1381 		EMASK_FSB_WR(3, nb_emask_fsb);
1382 	}
1383 }
1384 
1385 void
1386 nb_fsb_mask_mc(int fsb, uint16_t mc_mask_fsb)
1387 {
1388 	uint16_t emask_fsb;
1389 
1390 	emask_fsb = MCERR_FSB_RD(fsb);
1391 	if ((emask_fsb & mc_mask_fsb) != mc_mask_fsb) {
1392 		MCERR_FSB_WR(fsb, emask_fsb|mc_mask_fsb|EMASK_FBD_RES);
1393 		nb_mask_mc_set = 1;
1394 	}
1395 }
1396 
1397 static void
1398 nb_thr_init()
1399 {
1400 	uint16_t err0_thr;
1401 	uint16_t err1_thr;
1402 	uint16_t err2_thr;
1403 	uint16_t mcerr_thr;
1404 	uint16_t emask_thr;
1405 
1406 	if (nb_chipset == INTEL_NB_5400) {
1407 		err0_thr = ERR0_THR_RD(0);
1408 		err1_thr = ERR1_THR_RD(0);
1409 		err2_thr = ERR2_THR_RD(0);
1410 		mcerr_thr = MCERR_THR_RD(0);
1411 		emask_thr = EMASK_THR_RD(0);
1412 
1413 		ERR0_THR_WR(0xffff);
1414 		ERR1_THR_WR(0xffff);
1415 		ERR2_THR_WR(0xffff);
1416 		MCERR_THR_WR(0xffff);
1417 		EMASK_THR_WR(0xffff);
1418 
1419 		nb_err0_thr = err0_thr;
1420 		nb_err1_thr = err1_thr;
1421 		nb_err2_thr = err2_thr;
1422 		nb_mcerr_thr = mcerr_thr;
1423 		nb_emask_thr = emask_thr;
1424 
1425 		mcerr_thr &= ~nb_mask_bios_thr;
1426 		mcerr_thr |= nb_mask_bios_thr &
1427 		    (~err2_thr | ~err1_thr | ~err0_thr);
1428 		mcerr_thr |= nb_mask_poll_thr;
1429 		err0_thr |= nb_mask_poll_thr;
1430 		err1_thr |= nb_mask_poll_thr;
1431 		err2_thr |= nb_mask_poll_thr;
1432 
1433 		l_mcerr_thr = mcerr_thr;
1434 		ERR0_THR_WR(err0_thr);
1435 		ERR1_THR_WR(err1_thr);
1436 		ERR2_THR_WR(err2_thr);
1437 		MCERR_THR_WR(mcerr_thr);
1438 		EMASK_THR_WR(nb_emask_thr);
1439 	}
1440 }
1441 
1442 static void
1443 nb_thr_fini()
1444 {
1445 	if (nb_chipset == INTEL_NB_5400) {
1446 		ERR0_THR_WR(0xffff);
1447 		ERR1_THR_WR(0xffff);
1448 		ERR2_THR_WR(0xffff);
1449 		MCERR_THR_WR(0xffff);
1450 		EMASK_THR_WR(0xffff);
1451 
1452 		ERR0_THR_WR(nb_err0_thr);
1453 		ERR1_THR_WR(nb_err1_thr);
1454 		ERR2_THR_WR(nb_err2_thr);
1455 		MCERR_THR_WR(nb_mcerr_thr);
1456 		EMASK_THR_WR(nb_emask_thr);
1457 	}
1458 }
1459 
1460 void
1461 nb_thr_mask_mc(uint16_t mc_mask_thr)
1462 {
1463 	uint16_t emask_thr;
1464 
1465 	emask_thr = MCERR_THR_RD(0);
1466 	if ((emask_thr & mc_mask_thr) != mc_mask_thr) {
1467 		MCERR_THR_WR(emask_thr|mc_mask_thr);
1468 		nb_mask_mc_set = 1;
1469 	}
1470 }
1471 
1472 void
1473 nb_mask_mc_reset()
1474 {
1475 	if (nb_chipset == INTEL_NB_5100)
1476 		MCERR_MEM_WR(l_mcerr_mem);
1477 	else
1478 		MCERR_FBD_WR(l_mcerr_fbd);
1479 	MCERR_INT_WR(l_mcerr_int);
1480 	MCERR_FSB_WR(0, l_mcerr_fsb);
1481 	MCERR_FSB_WR(1, l_mcerr_fsb);
1482 	if (nb_chipset == INTEL_NB_7300) {
1483 		MCERR_FSB_WR(2, l_mcerr_fsb);
1484 		MCERR_FSB_WR(3, l_mcerr_fsb);
1485 	}
1486 	if (nb_chipset == INTEL_NB_5400) {
1487 		MCERR_THR_WR(l_mcerr_thr);
1488 	}
1489 }
1490 
1491 int
1492 nb_dev_init()
1493 {
1494 	find_dimm_label_t *label_function_p;
1495 
1496 	label_function_p = find_dimms_per_channel();
1497 	mutex_init(&nb_mutex, NULL, MUTEX_DRIVER, NULL);
1498 	nb_queue = errorq_create("nb_queue", nb_drain, NULL, NB_MAX_ERRORS,
1499 	    sizeof (nb_logout_t), 1, ERRORQ_VITAL);
1500 	if (nb_queue == NULL) {
1501 		mutex_destroy(&nb_mutex);
1502 		return (EAGAIN);
1503 	}
1504 	nb_int_init();
1505 	nb_thr_init();
1506 	dimm_init();
1507 	nb_dimms_init(label_function_p);
1508 	nb_mc_init();
1509 	nb_pex_init();
1510 	if (nb_chipset == INTEL_NB_5100)
1511 		nb_mem_init();
1512 	else
1513 		nb_fbd_init();
1514 	nb_fsb_init();
1515 	nb_scrubber_enable();
1516 	return (0);
1517 }
1518 
1519 int
1520 nb_init()
1521 {
1522 	/* return ENOTSUP if there is no PCI config space support. */
1523 	if (pci_getl_func == NULL)
1524 		return (ENOTSUP);
1525 
1526 	/* get vendor and device */
1527 	nb_chipset = (*pci_getl_func)(0, 0, 0, PCI_CONF_VENID);
1528 	switch (nb_chipset) {
1529 	default:
1530 		if (nb_5000_memory_controller == 0)
1531 			return (ENOTSUP);
1532 		break;
1533 	case INTEL_NB_7300:
1534 	case INTEL_NB_5000P:
1535 	case INTEL_NB_5000X:
1536 		break;
1537 	case INTEL_NB_5000V:
1538 	case INTEL_NB_5000Z:
1539 		nb_number_memory_controllers = 1;
1540 		break;
1541 	case INTEL_NB_5100:
1542 		nb_channels_per_branch = 1;
1543 		break;
1544 	case INTEL_NB_5400:
1545 	case INTEL_NB_5400A:
1546 	case INTEL_NB_5400B:
1547 		nb_chipset = INTEL_NB_5400;
1548 		break;
1549 	}
1550 	return (0);
1551 }
1552 
1553 void
1554 nb_dev_reinit()
1555 {
1556 	int i, j;
1557 	int nchannels = nb_number_memory_controllers * 2;
1558 	nb_dimm_t **dimmpp;
1559 	nb_dimm_t *dimmp;
1560 	nb_dimm_t **old_nb_dimms;
1561 	int old_nb_dimms_per_channel;
1562 	find_dimm_label_t *label_function_p;
1563 	int dimm_slot = nb_dimm_slots;
1564 
1565 	old_nb_dimms = nb_dimms;
1566 	old_nb_dimms_per_channel = nb_dimms_per_channel;
1567 
1568 	dimm_fini();
1569 	nb_dimms_per_channel = 0;
1570 	label_function_p = find_dimms_per_channel();
1571 	dimm_init();
1572 	nb_dimms_init(label_function_p);
1573 	nb_mc_init();
1574 	nb_pex_init();
1575 	nb_int_init();
1576 	nb_thr_init();
1577 	if (nb_chipset == INTEL_NB_5100)
1578 		nb_mem_init();
1579 	else
1580 		nb_fbd_init();
1581 	nb_fsb_init();
1582 	nb_scrubber_enable();
1583 
1584 	dimmpp = old_nb_dimms;
1585 	for (i = 0; i < nchannels; i++) {
1586 		for (j = 0; j < old_nb_dimms_per_channel; j++) {
1587 			dimmp = *dimmpp;
1588 			if (dimmp) {
1589 				kmem_free(dimmp, sizeof (nb_dimm_t));
1590 				*dimmpp = NULL;
1591 			}
1592 			dimmpp++;
1593 		}
1594 	}
1595 	kmem_free(old_nb_dimms, sizeof (nb_dimm_t *) * dimm_slot);
1596 }
1597 
1598 void
1599 nb_dev_unload()
1600 {
1601 	errorq_destroy(nb_queue);
1602 	nb_queue = NULL;
1603 	mutex_destroy(&nb_mutex);
1604 	nb_int_fini();
1605 	nb_thr_fini();
1606 	if (nb_chipset == INTEL_NB_5100)
1607 		nb_mem_fini();
1608 	else
1609 		nb_fbd_fini();
1610 	nb_fsb_fini();
1611 	nb_pex_fini();
1612 	nb_fini();
1613 }
1614 
1615 void
1616 nb_unload()
1617 {
1618 }
1619