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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
[linux/fpc-iii.git] / arch / alpha / kernel / err_titan.c
blob14b26c466c8996cc1e4f7e03ff4391bcbb2bc3c8
1 /*
2 * linux/arch/alpha/kernel/err_titan.c
3 *
4 * Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
5 *
6 * Error handling code supporting TITAN systems
7 */
8
9 #include <linux/init.h>
10 #include <linux/pci.h>
11 #include <linux/sched.h>
12
13 #include <asm/io.h>
14 #include <asm/core_titan.h>
15 #include <asm/hwrpb.h>
16 #include <asm/smp.h>
17 #include <asm/err_common.h>
18 #include <asm/err_ev6.h>
19 #include <asm/irq_regs.h>
20
21 #include "err_impl.h"
22 #include "proto.h"
23
24
25 static int
26 titan_parse_c_misc(u64 c_misc, int print)
27 {
28 #ifdef CONFIG_VERBOSE_MCHECK
29 char *src;
30 int nxs = 0;
31 #endif
32 int status = MCHK_DISPOSITION_REPORT;
33
34 #define TITAN__CCHIP_MISC__NXM (1UL << 28)
35 #define TITAN__CCHIP_MISC__NXS__S (29)
36 #define TITAN__CCHIP_MISC__NXS__M (0x7)
37
38 if (!(c_misc & TITAN__CCHIP_MISC__NXM))
39 return MCHK_DISPOSITION_UNKNOWN_ERROR;
40
41 #ifdef CONFIG_VERBOSE_MCHECK
42 if (!print)
43 return status;
44
45 nxs = EXTRACT(c_misc, TITAN__CCHIP_MISC__NXS);
46 switch(nxs) {
47 case 0: /* CPU 0 */
48 case 1: /* CPU 1 */
49 case 2: /* CPU 2 */
50 case 3: /* CPU 3 */
51 src = "CPU";
52 /* num is already the CPU number */
53 break;
54 case 4: /* Pchip 0 */
55 case 5: /* Pchip 1 */
56 src = "Pchip";
57 nxs -= 4;
58 break;
59 default:/* reserved */
60 src = "Unknown, NXS =";
61 /* leave num untouched */
62 break;
63 }
64
65 printk("%s Non-existent memory access from: %s %d\n",
66 err_print_prefix, src, nxs);
67 #endif /* CONFIG_VERBOSE_MCHECK */
68
69 return status;
70 }
71
72 static int
73 titan_parse_p_serror(int which, u64 serror, int print)
74 {
75 int status = MCHK_DISPOSITION_REPORT;
76
77 #ifdef CONFIG_VERBOSE_MCHECK
78 static const char * const serror_src[] = {
79 "GPCI", "APCI", "AGP HP", "AGP LP"
80 };
81 static const char * const serror_cmd[] = {
82 "DMA Read", "DMA RMW", "SGTE Read", "Reserved"
83 };
84 #endif /* CONFIG_VERBOSE_MCHECK */
85
86 #define TITAN__PCHIP_SERROR__LOST_UECC (1UL << 0)
87 #define TITAN__PCHIP_SERROR__UECC (1UL << 1)
88 #define TITAN__PCHIP_SERROR__CRE (1UL << 2)
89 #define TITAN__PCHIP_SERROR__NXIO (1UL << 3)
90 #define TITAN__PCHIP_SERROR__LOST_CRE (1UL << 4)
91 #define TITAN__PCHIP_SERROR__ECCMASK (TITAN__PCHIP_SERROR__UECC | \
92 TITAN__PCHIP_SERROR__CRE)
93 #define TITAN__PCHIP_SERROR__ERRMASK (TITAN__PCHIP_SERROR__LOST_UECC | \
94 TITAN__PCHIP_SERROR__UECC | \
95 TITAN__PCHIP_SERROR__CRE | \
96 TITAN__PCHIP_SERROR__NXIO | \
97 TITAN__PCHIP_SERROR__LOST_CRE)
98 #define TITAN__PCHIP_SERROR__SRC__S (52)
99 #define TITAN__PCHIP_SERROR__SRC__M (0x3)
100 #define TITAN__PCHIP_SERROR__CMD__S (54)
101 #define TITAN__PCHIP_SERROR__CMD__M (0x3)
102 #define TITAN__PCHIP_SERROR__SYN__S (56)
103 #define TITAN__PCHIP_SERROR__SYN__M (0xff)
104 #define TITAN__PCHIP_SERROR__ADDR__S (15)
105 #define TITAN__PCHIP_SERROR__ADDR__M (0xffffffffUL)
106
107 if (!(serror & TITAN__PCHIP_SERROR__ERRMASK))
108 return MCHK_DISPOSITION_UNKNOWN_ERROR;
109
110 #ifdef CONFIG_VERBOSE_MCHECK
111 if (!print)
112 return status;
113
114 printk("%s PChip %d SERROR: %016llx\n",
115 err_print_prefix, which, serror);
116 if (serror & TITAN__PCHIP_SERROR__ECCMASK) {
117 printk("%s %sorrectable ECC Error:\n"
118 " Source: %-6s Command: %-8s Syndrome: 0x%08x\n"
119 " Address: 0x%llx\n",
120 err_print_prefix,
121 (serror & TITAN__PCHIP_SERROR__UECC) ? "Unc" : "C",
122 serror_src[EXTRACT(serror, TITAN__PCHIP_SERROR__SRC)],
123 serror_cmd[EXTRACT(serror, TITAN__PCHIP_SERROR__CMD)],
124 (unsigned)EXTRACT(serror, TITAN__PCHIP_SERROR__SYN),
125 EXTRACT(serror, TITAN__PCHIP_SERROR__ADDR));
126 }
127 if (serror & TITAN__PCHIP_SERROR__NXIO)
128 printk("%s Non Existent I/O Error\n", err_print_prefix);
129 if (serror & TITAN__PCHIP_SERROR__LOST_UECC)
130 printk("%s Lost Uncorrectable ECC Error\n",
131 err_print_prefix);
132 if (serror & TITAN__PCHIP_SERROR__LOST_CRE)
133 printk("%s Lost Correctable ECC Error\n", err_print_prefix);
134 #endif /* CONFIG_VERBOSE_MCHECK */
135
136 return status;
137 }
138
139 static int
140 titan_parse_p_perror(int which, int port, u64 perror, int print)
141 {
142 int cmd;
143 unsigned long addr;
144 int status = MCHK_DISPOSITION_REPORT;
145
146 #ifdef CONFIG_VERBOSE_MCHECK
147 static const char * const perror_cmd[] = {
148 "Interrupt Acknowledge", "Special Cycle",
149 "I/O Read", "I/O Write",
150 "Reserved", "Reserved",
151 "Memory Read", "Memory Write",
152 "Reserved", "Reserved",
153 "Configuration Read", "Configuration Write",
154 "Memory Read Multiple", "Dual Address Cycle",
155 "Memory Read Line", "Memory Write and Invalidate"
156 };
157 #endif /* CONFIG_VERBOSE_MCHECK */
158
159 #define TITAN__PCHIP_PERROR__LOST (1UL << 0)
160 #define TITAN__PCHIP_PERROR__SERR (1UL << 1)
161 #define TITAN__PCHIP_PERROR__PERR (1UL << 2)
162 #define TITAN__PCHIP_PERROR__DCRTO (1UL << 3)
163 #define TITAN__PCHIP_PERROR__SGE (1UL << 4)
164 #define TITAN__PCHIP_PERROR__APE (1UL << 5)
165 #define TITAN__PCHIP_PERROR__TA (1UL << 6)
166 #define TITAN__PCHIP_PERROR__DPE (1UL << 7)
167 #define TITAN__PCHIP_PERROR__NDS (1UL << 8)
168 #define TITAN__PCHIP_PERROR__IPTPR (1UL << 9)
169 #define TITAN__PCHIP_PERROR__IPTPW (1UL << 10)
170 #define TITAN__PCHIP_PERROR__ERRMASK (TITAN__PCHIP_PERROR__LOST | \
171 TITAN__PCHIP_PERROR__SERR | \
172 TITAN__PCHIP_PERROR__PERR | \
173 TITAN__PCHIP_PERROR__DCRTO | \
174 TITAN__PCHIP_PERROR__SGE | \
175 TITAN__PCHIP_PERROR__APE | \
176 TITAN__PCHIP_PERROR__TA | \
177 TITAN__PCHIP_PERROR__DPE | \
178 TITAN__PCHIP_PERROR__NDS | \
179 TITAN__PCHIP_PERROR__IPTPR | \
180 TITAN__PCHIP_PERROR__IPTPW)
181 #define TITAN__PCHIP_PERROR__DAC (1UL << 47)
182 #define TITAN__PCHIP_PERROR__MWIN (1UL << 48)
183 #define TITAN__PCHIP_PERROR__CMD__S (52)
184 #define TITAN__PCHIP_PERROR__CMD__M (0x0f)
185 #define TITAN__PCHIP_PERROR__ADDR__S (14)
186 #define TITAN__PCHIP_PERROR__ADDR__M (0x1fffffffful)
187
188 if (!(perror & TITAN__PCHIP_PERROR__ERRMASK))
189 return MCHK_DISPOSITION_UNKNOWN_ERROR;
190
191 cmd = EXTRACT(perror, TITAN__PCHIP_PERROR__CMD);
192 addr = EXTRACT(perror, TITAN__PCHIP_PERROR__ADDR) << 2;
193
194 /*
195 * Initializing the BIOS on a video card on a bus without
196 * a south bridge (subtractive decode agent) can result in
197 * master aborts as the BIOS probes the capabilities of the
198 * card. XFree86 does such initialization. If the error
199 * is a master abort (No DevSel as PCI Master) and the command
200 * is an I/O read or write below the address where we start
201 * assigning PCI I/O spaces (SRM uses 0x1000), then mark the
202 * error as dismissable so starting XFree86 doesn't result
203 * in a series of uncorrectable errors being reported. Also
204 * dismiss master aborts to VGA frame buffer space
205 * (0xA0000 - 0xC0000) and legacy BIOS space (0xC0000 - 0x100000)
206 * for the same reason.
207 *
208 * Also mark the error dismissible if it looks like the right
209 * error but only the Lost bit is set. Since the BIOS initialization
210 * can cause multiple master aborts and the error interrupt can
211 * be handled on a different CPU than the BIOS code is run on,
212 * it is possible for a second master abort to occur between the
213 * time the PALcode reads PERROR and the time it writes PERROR
214 * to acknowledge the error. If this timing happens, a second
215 * error will be signalled after the first, and if no additional
216 * errors occur, will look like a Lost error with no additional
217 * errors on the same transaction as the previous error.
218 */
219 if (((perror & TITAN__PCHIP_PERROR__NDS) ||
220 ((perror & TITAN__PCHIP_PERROR__ERRMASK) ==
221 TITAN__PCHIP_PERROR__LOST)) &&
222 ((((cmd & 0xE) == 2) && (addr < 0x1000)) ||
223 (((cmd & 0xE) == 6) && (addr >= 0xA0000) && (addr < 0x100000)))) {
224 status = MCHK_DISPOSITION_DISMISS;
225 }
226
227 #ifdef CONFIG_VERBOSE_MCHECK
228 if (!print)
229 return status;
230
231 printk("%s PChip %d %cPERROR: %016llx\n",
232 err_print_prefix, which,
233 port ? 'A' : 'G', perror);
234 if (perror & TITAN__PCHIP_PERROR__IPTPW)
235 printk("%s Invalid Peer-to-Peer Write\n", err_print_prefix);
236 if (perror & TITAN__PCHIP_PERROR__IPTPR)
237 printk("%s Invalid Peer-to-Peer Read\n", err_print_prefix);
238 if (perror & TITAN__PCHIP_PERROR__NDS)
239 printk("%s No DEVSEL as PCI Master [Master Abort]\n",
240 err_print_prefix);
241 if (perror & TITAN__PCHIP_PERROR__DPE)
242 printk("%s Data Parity Error\n", err_print_prefix);
243 if (perror & TITAN__PCHIP_PERROR__TA)
244 printk("%s Target Abort\n", err_print_prefix);
245 if (perror & TITAN__PCHIP_PERROR__APE)
246 printk("%s Address Parity Error\n", err_print_prefix);
247 if (perror & TITAN__PCHIP_PERROR__SGE)
248 printk("%s Scatter-Gather Error, Invalid PTE\n",
249 err_print_prefix);
250 if (perror & TITAN__PCHIP_PERROR__DCRTO)
251 printk("%s Delayed-Completion Retry Timeout\n",
252 err_print_prefix);
253 if (perror & TITAN__PCHIP_PERROR__PERR)
254 printk("%s PERR Asserted\n", err_print_prefix);
255 if (perror & TITAN__PCHIP_PERROR__SERR)
256 printk("%s SERR Asserted\n", err_print_prefix);
257 if (perror & TITAN__PCHIP_PERROR__LOST)
258 printk("%s Lost Error\n", err_print_prefix);
259 printk("%s Command: 0x%x - %s\n"
260 " Address: 0x%lx\n",
261 err_print_prefix,
262 cmd, perror_cmd[cmd],
263 addr);
264 if (perror & TITAN__PCHIP_PERROR__DAC)
265 printk("%s Dual Address Cycle\n", err_print_prefix);
266 if (perror & TITAN__PCHIP_PERROR__MWIN)
267 printk("%s Hit in Monster Window\n", err_print_prefix);
268 #endif /* CONFIG_VERBOSE_MCHECK */
269
270 return status;
271 }
272
273 static int
274 titan_parse_p_agperror(int which, u64 agperror, int print)
275 {
276 int status = MCHK_DISPOSITION_REPORT;
277 #ifdef CONFIG_VERBOSE_MCHECK
278 int cmd, len;
279 unsigned long addr;
280
281 static const char * const agperror_cmd[] = {
282 "Read (low-priority)", "Read (high-priority)",
283 "Write (low-priority)", "Write (high-priority)",
284 "Reserved", "Reserved",
285 "Flush", "Fence"
286 };
287 #endif /* CONFIG_VERBOSE_MCHECK */
288
289 #define TITAN__PCHIP_AGPERROR__LOST (1UL << 0)
290 #define TITAN__PCHIP_AGPERROR__LPQFULL (1UL << 1)
291 #define TITAN__PCHIP_AGPERROR__HPQFULL (1UL << 2)
292 #define TITAN__PCHIP_AGPERROR__RESCMD (1UL << 3)
293 #define TITAN__PCHIP_AGPERROR__IPTE (1UL << 4)
294 #define TITAN__PCHIP_AGPERROR__PTP (1UL << 5)
295 #define TITAN__PCHIP_AGPERROR__NOWINDOW (1UL << 6)
296 #define TITAN__PCHIP_AGPERROR__ERRMASK (TITAN__PCHIP_AGPERROR__LOST | \
297 TITAN__PCHIP_AGPERROR__LPQFULL | \
298 TITAN__PCHIP_AGPERROR__HPQFULL | \
299 TITAN__PCHIP_AGPERROR__RESCMD | \
300 TITAN__PCHIP_AGPERROR__IPTE | \
301 TITAN__PCHIP_AGPERROR__PTP | \
302 TITAN__PCHIP_AGPERROR__NOWINDOW)
303 #define TITAN__PCHIP_AGPERROR__DAC (1UL << 48)
304 #define TITAN__PCHIP_AGPERROR__MWIN (1UL << 49)
305 #define TITAN__PCHIP_AGPERROR__FENCE (1UL << 59)
306 #define TITAN__PCHIP_AGPERROR__CMD__S (50)
307 #define TITAN__PCHIP_AGPERROR__CMD__M (0x07)
308 #define TITAN__PCHIP_AGPERROR__ADDR__S (15)
309 #define TITAN__PCHIP_AGPERROR__ADDR__M (0xffffffffUL)
310 #define TITAN__PCHIP_AGPERROR__LEN__S (53)
311 #define TITAN__PCHIP_AGPERROR__LEN__M (0x3f)
312
313 if (!(agperror & TITAN__PCHIP_AGPERROR__ERRMASK))
314 return MCHK_DISPOSITION_UNKNOWN_ERROR;
315
316 #ifdef CONFIG_VERBOSE_MCHECK
317 if (!print)
318 return status;
319
320 cmd = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__CMD);
321 addr = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__ADDR) << 3;
322 len = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__LEN);
323
324 printk("%s PChip %d AGPERROR: %016llx\n", err_print_prefix,
325 which, agperror);
326 if (agperror & TITAN__PCHIP_AGPERROR__NOWINDOW)
327 printk("%s No Window\n", err_print_prefix);
328 if (agperror & TITAN__PCHIP_AGPERROR__PTP)
329 printk("%s Peer-to-Peer set\n", err_print_prefix);
330 if (agperror & TITAN__PCHIP_AGPERROR__IPTE)
331 printk("%s Invalid PTE\n", err_print_prefix);
332 if (agperror & TITAN__PCHIP_AGPERROR__RESCMD)
333 printk("%s Reserved Command\n", err_print_prefix);
334 if (agperror & TITAN__PCHIP_AGPERROR__HPQFULL)
335 printk("%s HP Transaction Received while Queue Full\n",
336 err_print_prefix);
337 if (agperror & TITAN__PCHIP_AGPERROR__LPQFULL)
338 printk("%s LP Transaction Received while Queue Full\n",
339 err_print_prefix);
340 if (agperror & TITAN__PCHIP_AGPERROR__LOST)
341 printk("%s Lost Error\n", err_print_prefix);
342 printk("%s Command: 0x%x - %s, %d Quadwords%s\n"
343 " Address: 0x%lx\n",
344 err_print_prefix, cmd, agperror_cmd[cmd], len,
345 (agperror & TITAN__PCHIP_AGPERROR__FENCE) ? ", FENCE" : "",
346 addr);
347 if (agperror & TITAN__PCHIP_AGPERROR__DAC)
348 printk("%s Dual Address Cycle\n", err_print_prefix);
349 if (agperror & TITAN__PCHIP_AGPERROR__MWIN)
350 printk("%s Hit in Monster Window\n", err_print_prefix);
351 #endif /* CONFIG_VERBOSE_MCHECK */
352
353 return status;
354 }
355
356 static int
357 titan_parse_p_chip(int which, u64 serror, u64 gperror,
358 u64 aperror, u64 agperror, int print)
359 {
360 int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
361 status |= titan_parse_p_serror(which, serror, print);
362 status |= titan_parse_p_perror(which, 0, gperror, print);
363 status |= titan_parse_p_perror(which, 1, aperror, print);
364 status |= titan_parse_p_agperror(which, agperror, print);
365 return status;
366 }
367
368 int
369 titan_process_logout_frame(struct el_common *mchk_header, int print)
370 {
371 struct el_TITAN_sysdata_mcheck *tmchk =
372 (struct el_TITAN_sysdata_mcheck *)
373 ((unsigned long)mchk_header + mchk_header->sys_offset);
374 int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
375
376 status |= titan_parse_c_misc(tmchk->c_misc, print);
377 status |= titan_parse_p_chip(0, tmchk->p0_serror, tmchk->p0_gperror,
378 tmchk->p0_aperror, tmchk->p0_agperror,
379 print);
380 status |= titan_parse_p_chip(1, tmchk->p1_serror, tmchk->p1_gperror,
381 tmchk->p1_aperror, tmchk->p1_agperror,
382 print);
383
384 return status;
385 }
386
387 void
388 titan_machine_check(unsigned long vector, unsigned long la_ptr)
389 {
390 struct el_common *mchk_header = (struct el_common *)la_ptr;
391 struct el_TITAN_sysdata_mcheck *tmchk =
392 (struct el_TITAN_sysdata_mcheck *)
393 ((unsigned long)mchk_header + mchk_header->sys_offset);
394 u64 irqmask;
395
396 /*
397 * Mask of Titan interrupt sources which are reported as machine checks
398 *
399 * 63 - CChip Error
400 * 62 - PChip 0 H_Error
401 * 61 - PChip 1 H_Error
402 * 60 - PChip 0 C_Error
403 * 59 - PChip 1 C_Error
404 */
405 #define TITAN_MCHECK_INTERRUPT_MASK 0xF800000000000000UL
406
407 /*
408 * Sync the processor
409 */
410 mb();
411 draina();
412
413 /*
414 * Only handle system errors here
415 */
416 if ((vector != SCB_Q_SYSMCHK) && (vector != SCB_Q_SYSERR)) {
417 ev6_machine_check(vector, la_ptr);
418 return;
419 }
420
421 /*
422 * It's a system error, handle it here
423 *
424 * The PALcode has already cleared the error, so just parse it
425 */
426
427 /*
428 * Parse the logout frame without printing first. If the only error(s)
429 * found are classified as "dismissable", then just dismiss them and
430 * don't print any message
431 */
432 if (titan_process_logout_frame(mchk_header, 0) !=
433 MCHK_DISPOSITION_DISMISS) {
434 char *saved_err_prefix = err_print_prefix;
435 err_print_prefix = KERN_CRIT;
436
437 /*
438 * Either a nondismissable error was detected or no
439 * recognized error was detected in the logout frame
440 * -- report the error in either case
441 */
442 printk("%s"
443 "*System %s Error (Vector 0x%x) reported on CPU %d:\n",
444 err_print_prefix,
445 (vector == SCB_Q_SYSERR)?"Correctable":"Uncorrectable",
446 (unsigned int)vector, (int)smp_processor_id());
447
448 #ifdef CONFIG_VERBOSE_MCHECK
449 titan_process_logout_frame(mchk_header, alpha_verbose_mcheck);
450 if (alpha_verbose_mcheck)
451 dik_show_regs(get_irq_regs(), NULL);
452 #endif /* CONFIG_VERBOSE_MCHECK */
453
454 err_print_prefix = saved_err_prefix;
455
456 /*
457 * Convert any pending interrupts which report as system
458 * machine checks to interrupts
459 */
460 irqmask = tmchk->c_dirx & TITAN_MCHECK_INTERRUPT_MASK;
461 titan_dispatch_irqs(irqmask);
462 }
463
464
465 /*
466 * Release the logout frame
467 */
468 wrmces(0x7);
469 mb();
470 }
471
472 /*
473 * Subpacket Annotations
474 */
475 static char *el_titan_pchip0_extended_annotation[] = {
476 "Subpacket Header", "P0_SCTL", "P0_SERREN",
477 "P0_APCTL", "P0_APERREN", "P0_AGPERREN",
478 "P0_ASPRST", "P0_AWSBA0", "P0_AWSBA1",
479 "P0_AWSBA2", "P0_AWSBA3", "P0_AWSM0",
480 "P0_AWSM1", "P0_AWSM2", "P0_AWSM3",
481 "P0_ATBA0", "P0_ATBA1", "P0_ATBA2",
482 "P0_ATBA3", "P0_GPCTL", "P0_GPERREN",
483 "P0_GSPRST", "P0_GWSBA0", "P0_GWSBA1",
484 "P0_GWSBA2", "P0_GWSBA3", "P0_GWSM0",
485 "P0_GWSM1", "P0_GWSM2", "P0_GWSM3",
486 "P0_GTBA0", "P0_GTBA1", "P0_GTBA2",
487 "P0_GTBA3", NULL
488 };
489 static char *el_titan_pchip1_extended_annotation[] = {
490 "Subpacket Header", "P1_SCTL", "P1_SERREN",
491 "P1_APCTL", "P1_APERREN", "P1_AGPERREN",
492 "P1_ASPRST", "P1_AWSBA0", "P1_AWSBA1",
493 "P1_AWSBA2", "P1_AWSBA3", "P1_AWSM0",
494 "P1_AWSM1", "P1_AWSM2", "P1_AWSM3",
495 "P1_ATBA0", "P1_ATBA1", "P1_ATBA2",
496 "P1_ATBA3", "P1_GPCTL", "P1_GPERREN",
497 "P1_GSPRST", "P1_GWSBA0", "P1_GWSBA1",
498 "P1_GWSBA2", "P1_GWSBA3", "P1_GWSM0",
499 "P1_GWSM1", "P1_GWSM2", "P1_GWSM3",
500 "P1_GTBA0", "P1_GTBA1", "P1_GTBA2",
501 "P1_GTBA3", NULL
502 };
503 static char *el_titan_memory_extended_annotation[] = {
504 "Subpacket Header", "AAR0", "AAR1",
505 "AAR2", "AAR3", "P0_SCTL",
506 "P0_GPCTL", "P0_APCTL", "P1_SCTL",
507 "P1_GPCTL", "P1_SCTL", NULL
508 };
509
510 static struct el_subpacket_annotation el_titan_annotations[] = {
511 SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
512 EL_TYPE__REGATTA__TITAN_PCHIP0_EXTENDED,
513 1,
514 "Titan PChip 0 Extended Frame",
515 el_titan_pchip0_extended_annotation),
516 SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
517 EL_TYPE__REGATTA__TITAN_PCHIP1_EXTENDED,
518 1,
519 "Titan PChip 1 Extended Frame",
520 el_titan_pchip1_extended_annotation),
521 SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
522 EL_TYPE__REGATTA__TITAN_MEMORY_EXTENDED,
523 1,
524 "Titan Memory Extended Frame",
525 el_titan_memory_extended_annotation),
526 SUBPACKET_ANNOTATION(EL_CLASS__REGATTA_FAMILY,
527 EL_TYPE__TERMINATION__TERMINATION,
528 1,
529 "Termination Subpacket",
530 NULL)
531 };
532
533 static struct el_subpacket *
534 el_process_regatta_subpacket(struct el_subpacket *header)
535 {
536 if (header->class != EL_CLASS__REGATTA_FAMILY) {
537 printk("%s ** Unexpected header CLASS %d TYPE %d, aborting\n",
538 err_print_prefix,
539 header->class, header->type);
540 return NULL;
541 }
542
543 switch(header->type) {
544 case EL_TYPE__REGATTA__PROCESSOR_ERROR_FRAME:
545 case EL_TYPE__REGATTA__SYSTEM_ERROR_FRAME:
546 case EL_TYPE__REGATTA__ENVIRONMENTAL_FRAME:
547 case EL_TYPE__REGATTA__PROCESSOR_DBL_ERROR_HALT:
548 case EL_TYPE__REGATTA__SYSTEM_DBL_ERROR_HALT:
549 printk("%s ** Occurred on CPU %d:\n",
550 err_print_prefix,
551 (int)header->by_type.regatta_frame.cpuid);
552 privateer_process_logout_frame((struct el_common *)
553 header->by_type.regatta_frame.data_start, 1);
554 break;
555 default:
556 printk("%s ** REGATTA TYPE %d SUBPACKET\n",
557 err_print_prefix, header->type);
558 el_annotate_subpacket(header);
559 break;
560 }
561
562
563 return (struct el_subpacket *)((unsigned long)header + header->length);
564 }
565
566 static struct el_subpacket_handler titan_subpacket_handler =
567 SUBPACKET_HANDLER_INIT(EL_CLASS__REGATTA_FAMILY,
568 el_process_regatta_subpacket);
569
570 void __init
571 titan_register_error_handlers(void)
572 {
573 size_t i;
574
575 for (i = 0; i < ARRAY_SIZE (el_titan_annotations); i++)
576 cdl_register_subpacket_annotation(&el_titan_annotations[i]);
577
578 cdl_register_subpacket_handler(&titan_subpacket_handler);
579
580 ev6_register_error_handlers();
581 }
582
583 \f
584 /*
585 * Privateer
586 */
587
588 static int
589 privateer_process_680_frame(struct el_common *mchk_header, int print)
590 {
591 int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
592 #ifdef CONFIG_VERBOSE_MCHECK
593 struct el_PRIVATEER_envdata_mcheck *emchk =
594 (struct el_PRIVATEER_envdata_mcheck *)
595 ((unsigned long)mchk_header + mchk_header->sys_offset);
596
597 /* TODO - categorize errors, for now, no error */
598
599 if (!print)
600 return status;
601
602 /* TODO - decode instead of just dumping... */
603 printk("%s Summary Flags: %016llx\n"
604 " CChip DIRx: %016llx\n"
605 " System Management IR: %016llx\n"
606 " CPU IR: %016llx\n"
607 " Power Supply IR: %016llx\n"
608 " LM78 Fault Status: %016llx\n"
609 " System Doors: %016llx\n"
610 " Temperature Warning: %016llx\n"
611 " Fan Control: %016llx\n"
612 " Fatal Power Down Code: %016llx\n",
613 err_print_prefix,
614 emchk->summary,
615 emchk->c_dirx,
616 emchk->smir,
617 emchk->cpuir,
618 emchk->psir,
619 emchk->fault,
620 emchk->sys_doors,
621 emchk->temp_warn,
622 emchk->fan_ctrl,
623 emchk->code);
624 #endif /* CONFIG_VERBOSE_MCHECK */
625
626 return status;
627 }
628
629 int
630 privateer_process_logout_frame(struct el_common *mchk_header, int print)
631 {
632 struct el_common_EV6_mcheck *ev6mchk =
633 (struct el_common_EV6_mcheck *)mchk_header;
634 int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
635
636 /*
637 * Machine check codes
638 */
639 #define PRIVATEER_MCHK__CORR_ECC 0x86 /* 630 */
640 #define PRIVATEER_MCHK__DC_TAG_PERR 0x9E /* 630 */
641 #define PRIVATEER_MCHK__PAL_BUGCHECK 0x8E /* 670 */
642 #define PRIVATEER_MCHK__OS_BUGCHECK 0x90 /* 670 */
643 #define PRIVATEER_MCHK__PROC_HRD_ERR 0x98 /* 670 */
644 #define PRIVATEER_MCHK__ISTREAM_CMOV_PRX 0xA0 /* 670 */
645 #define PRIVATEER_MCHK__ISTREAM_CMOV_FLT 0xA2 /* 670 */
646 #define PRIVATEER_MCHK__SYS_HRD_ERR 0x202 /* 660 */
647 #define PRIVATEER_MCHK__SYS_CORR_ERR 0x204 /* 620 */
648 #define PRIVATEER_MCHK__SYS_ENVIRON 0x206 /* 680 */
649
650 switch(ev6mchk->MCHK_Code) {
651 /*
652 * Vector 630 - Processor, Correctable
653 */
654 case PRIVATEER_MCHK__CORR_ECC:
655 case PRIVATEER_MCHK__DC_TAG_PERR:
656 /*
657 * Fall through to vector 670 for processing...
658 */
659 /*
660 * Vector 670 - Processor, Uncorrectable
661 */
662 case PRIVATEER_MCHK__PAL_BUGCHECK:
663 case PRIVATEER_MCHK__OS_BUGCHECK:
664 case PRIVATEER_MCHK__PROC_HRD_ERR:
665 case PRIVATEER_MCHK__ISTREAM_CMOV_PRX:
666 case PRIVATEER_MCHK__ISTREAM_CMOV_FLT:
667 status |= ev6_process_logout_frame(mchk_header, print);
668 break;
669
670 /*
671 * Vector 620 - System, Correctable
672 */
673 case PRIVATEER_MCHK__SYS_CORR_ERR:
674 /*
675 * Fall through to vector 660 for processing...
676 */
677 /*
678 * Vector 660 - System, Uncorrectable
679 */
680 case PRIVATEER_MCHK__SYS_HRD_ERR:
681 status |= titan_process_logout_frame(mchk_header, print);
682 break;
683
684 /*
685 * Vector 680 - System, Environmental
686 */
687 case PRIVATEER_MCHK__SYS_ENVIRON: /* System, Environmental */
688 status |= privateer_process_680_frame(mchk_header, print);
689 break;
690
691 /*
692 * Unknown
693 */
694 default:
695 status |= MCHK_DISPOSITION_REPORT;
696 if (print) {
697 printk("%s** Unknown Error, frame follows\n",
698 err_print_prefix);
699 mchk_dump_logout_frame(mchk_header);
700 }
701
702 }
703
704 return status;
705 }
706
707 void
708 privateer_machine_check(unsigned long vector, unsigned long la_ptr)
709 {
710 struct el_common *mchk_header = (struct el_common *)la_ptr;
711 struct el_TITAN_sysdata_mcheck *tmchk =
712 (struct el_TITAN_sysdata_mcheck *)
713 (la_ptr + mchk_header->sys_offset);
714 u64 irqmask;
715 char *saved_err_prefix = err_print_prefix;
716
717 #define PRIVATEER_680_INTERRUPT_MASK (0xE00UL)
718 #define PRIVATEER_HOTPLUG_INTERRUPT_MASK (0xE00UL)
719
720 /*
721 * Sync the processor.
722 */
723 mb();
724 draina();
725
726 /*
727 * Only handle system events here.
728 */
729 if (vector != SCB_Q_SYSEVENT)
730 return titan_machine_check(vector, la_ptr);
731
732 /*
733 * Report the event - System Events should be reported even if no
734 * error is indicated since the event could indicate the return
735 * to normal status.
736 */
737 err_print_prefix = KERN_CRIT;
738 printk("%s*System Event (Vector 0x%x) reported on CPU %d:\n",
739 err_print_prefix,
740 (unsigned int)vector, (int)smp_processor_id());
741 privateer_process_680_frame(mchk_header, 1);
742 err_print_prefix = saved_err_prefix;
743
744 /*
745 * Convert any pending interrupts which report as 680 machine
746 * checks to interrupts.
747 */
748 irqmask = tmchk->c_dirx & PRIVATEER_680_INTERRUPT_MASK;
749
750 /*
751 * Dispatch the interrupt(s).
752 */
753 titan_dispatch_irqs(irqmask);
754
755 /*
756 * Release the logout frame.
757 */
758 wrmces(0x7);
759 mb();
760 }
Linux with added FPC-III support