2 * Intel 5000(P/V/X) class Memory Controllers kernel module
4 * This file may be distributed under the terms of the
5 * GNU General Public License.
7 * Written by Douglas Thompson Linux Networx (http://lnxi.com)
10 * This module is based on the following document:
12 * Intel 5000X Chipset Memory Controller Hub (MCH) - Datasheet
13 * http://developer.intel.com/design/chipsets/datashts/313070.htm
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/pci.h>
20 #include <linux/pci_ids.h>
21 #include <linux/slab.h>
22 #include <linux/edac.h>
23 #include <asm/mmzone.h>
25 #include "edac_core.h"
28 * Alter this version for the I5000 module when modifications are made
30 #define I5000_REVISION " Ver: 2.0.12"
31 #define EDAC_MOD_STR "i5000_edac"
33 #define i5000_printk(level, fmt, arg...) \
34 edac_printk(level, "i5000", fmt, ##arg)
36 #define i5000_mc_printk(mci, level, fmt, arg...) \
37 edac_mc_chipset_printk(mci, level, "i5000", fmt, ##arg)
39 #ifndef PCI_DEVICE_ID_INTEL_FBD_0
40 #define PCI_DEVICE_ID_INTEL_FBD_0 0x25F5
42 #ifndef PCI_DEVICE_ID_INTEL_FBD_1
43 #define PCI_DEVICE_ID_INTEL_FBD_1 0x25F6
47 * Function 0: System Address
48 * Function 1: Memory Branch Map, Control, Errors Register
49 * Function 2: FSB Error Registers
51 * All 3 functions of Device 16 (0,1,2) share the SAME DID
53 #define PCI_DEVICE_ID_INTEL_I5000_DEV16 0x25F0
55 /* OFFSETS for Function 0 */
57 /* OFFSETS for Function 1 */
60 #define MAXDIMMPERCH 0x57
63 #define RED_ECC_LOCATOR(x) ((x) & 0x3FFFF)
64 #define REC_ECC_LOCATOR_EVEN(x) ((x) & 0x001FF)
65 #define REC_ECC_LOCATOR_ODD(x) ((x) & 0x3FE00)
73 #define FERR_FAT_FBD 0x98
74 #define NERR_FAT_FBD 0x9C
75 #define EXTRACT_FBDCHAN_INDX(x) (((x)>>28) & 0x3)
76 #define FERR_FAT_FBDCHAN 0x30000000
77 #define FERR_FAT_M3ERR 0x00000004
78 #define FERR_FAT_M2ERR 0x00000002
79 #define FERR_FAT_M1ERR 0x00000001
80 #define FERR_FAT_MASK (FERR_FAT_M1ERR | \
84 #define FERR_NF_FBD 0xA0
86 /* Thermal and SPD or BFD errors */
87 #define FERR_NF_M28ERR 0x01000000
88 #define FERR_NF_M27ERR 0x00800000
89 #define FERR_NF_M26ERR 0x00400000
90 #define FERR_NF_M25ERR 0x00200000
91 #define FERR_NF_M24ERR 0x00100000
92 #define FERR_NF_M23ERR 0x00080000
93 #define FERR_NF_M22ERR 0x00040000
94 #define FERR_NF_M21ERR 0x00020000
96 /* Correctable errors */
97 #define FERR_NF_M20ERR 0x00010000
98 #define FERR_NF_M19ERR 0x00008000
99 #define FERR_NF_M18ERR 0x00004000
100 #define FERR_NF_M17ERR 0x00002000
102 /* Non-Retry or redundant Retry errors */
103 #define FERR_NF_M16ERR 0x00001000
104 #define FERR_NF_M15ERR 0x00000800
105 #define FERR_NF_M14ERR 0x00000400
106 #define FERR_NF_M13ERR 0x00000200
108 /* Uncorrectable errors */
109 #define FERR_NF_M12ERR 0x00000100
110 #define FERR_NF_M11ERR 0x00000080
111 #define FERR_NF_M10ERR 0x00000040
112 #define FERR_NF_M9ERR 0x00000020
113 #define FERR_NF_M8ERR 0x00000010
114 #define FERR_NF_M7ERR 0x00000008
115 #define FERR_NF_M6ERR 0x00000004
116 #define FERR_NF_M5ERR 0x00000002
117 #define FERR_NF_M4ERR 0x00000001
119 #define FERR_NF_UNCORRECTABLE (FERR_NF_M12ERR | \
128 #define FERR_NF_CORRECTABLE (FERR_NF_M20ERR | \
132 #define FERR_NF_DIMM_SPARE (FERR_NF_M27ERR | \
134 #define FERR_NF_THERMAL (FERR_NF_M26ERR | \
138 #define FERR_NF_SPD_PROTOCOL (FERR_NF_M22ERR)
139 #define FERR_NF_NORTH_CRC (FERR_NF_M21ERR)
140 #define FERR_NF_NON_RETRY (FERR_NF_M13ERR | \
144 #define NERR_NF_FBD 0xA4
145 #define FERR_NF_MASK (FERR_NF_UNCORRECTABLE | \
146 FERR_NF_CORRECTABLE | \
147 FERR_NF_DIMM_SPARE | \
149 FERR_NF_SPD_PROTOCOL | \
150 FERR_NF_NORTH_CRC | \
153 #define EMASK_FBD 0xA8
154 #define EMASK_FBD_M28ERR 0x08000000
155 #define EMASK_FBD_M27ERR 0x04000000
156 #define EMASK_FBD_M26ERR 0x02000000
157 #define EMASK_FBD_M25ERR 0x01000000
158 #define EMASK_FBD_M24ERR 0x00800000
159 #define EMASK_FBD_M23ERR 0x00400000
160 #define EMASK_FBD_M22ERR 0x00200000
161 #define EMASK_FBD_M21ERR 0x00100000
162 #define EMASK_FBD_M20ERR 0x00080000
163 #define EMASK_FBD_M19ERR 0x00040000
164 #define EMASK_FBD_M18ERR 0x00020000
165 #define EMASK_FBD_M17ERR 0x00010000
167 #define EMASK_FBD_M15ERR 0x00004000
168 #define EMASK_FBD_M14ERR 0x00002000
169 #define EMASK_FBD_M13ERR 0x00001000
170 #define EMASK_FBD_M12ERR 0x00000800
171 #define EMASK_FBD_M11ERR 0x00000400
172 #define EMASK_FBD_M10ERR 0x00000200
173 #define EMASK_FBD_M9ERR 0x00000100
174 #define EMASK_FBD_M8ERR 0x00000080
175 #define EMASK_FBD_M7ERR 0x00000040
176 #define EMASK_FBD_M6ERR 0x00000020
177 #define EMASK_FBD_M5ERR 0x00000010
178 #define EMASK_FBD_M4ERR 0x00000008
179 #define EMASK_FBD_M3ERR 0x00000004
180 #define EMASK_FBD_M2ERR 0x00000002
181 #define EMASK_FBD_M1ERR 0x00000001
183 #define ENABLE_EMASK_FBD_FATAL_ERRORS (EMASK_FBD_M1ERR | \
187 #define ENABLE_EMASK_FBD_UNCORRECTABLE (EMASK_FBD_M4ERR | \
196 #define ENABLE_EMASK_FBD_CORRECTABLE (EMASK_FBD_M17ERR | \
200 #define ENABLE_EMASK_FBD_DIMM_SPARE (EMASK_FBD_M27ERR | \
202 #define ENABLE_EMASK_FBD_THERMALS (EMASK_FBD_M26ERR | \
206 #define ENABLE_EMASK_FBD_SPD_PROTOCOL (EMASK_FBD_M22ERR)
207 #define ENABLE_EMASK_FBD_NORTH_CRC (EMASK_FBD_M21ERR)
208 #define ENABLE_EMASK_FBD_NON_RETRY (EMASK_FBD_M15ERR | \
212 #define ENABLE_EMASK_ALL (ENABLE_EMASK_FBD_NON_RETRY | \
213 ENABLE_EMASK_FBD_NORTH_CRC | \
214 ENABLE_EMASK_FBD_SPD_PROTOCOL | \
215 ENABLE_EMASK_FBD_THERMALS | \
216 ENABLE_EMASK_FBD_DIMM_SPARE | \
217 ENABLE_EMASK_FBD_FATAL_ERRORS | \
218 ENABLE_EMASK_FBD_CORRECTABLE | \
219 ENABLE_EMASK_FBD_UNCORRECTABLE)
221 #define ERR0_FBD 0xAC
222 #define ERR1_FBD 0xB0
223 #define ERR2_FBD 0xB4
224 #define MCERR_FBD 0xB8
225 #define NRECMEMA 0xBE
226 #define NREC_BANK(x) (((x)>>12) & 0x7)
227 #define NREC_RDWR(x) (((x)>>11) & 1)
228 #define NREC_RANK(x) (((x)>>8) & 0x7)
229 #define NRECMEMB 0xC0
230 #define NREC_CAS(x) (((x)>>16) & 0xFFFFFF)
231 #define NREC_RAS(x) ((x) & 0x7FFF)
232 #define NRECFGLOG 0xC4
233 #define NREEECFBDA 0xC8
234 #define NREEECFBDB 0xCC
235 #define NREEECFBDC 0xD0
236 #define NREEECFBDD 0xD4
237 #define NREEECFBDE 0xD8
240 #define REC_BANK(x) (((x)>>12) & 0x7)
241 #define REC_RDWR(x) (((x)>>11) & 1)
242 #define REC_RANK(x) (((x)>>8) & 0x7)
244 #define REC_CAS(x) (((x)>>16) & 0xFFFFFF)
245 #define REC_RAS(x) ((x) & 0x7FFF)
246 #define RECFGLOG 0xE8
253 /* OFFSETS for Function 2 */
257 * Function 0: Memory Map Branch 0
260 * Function 0: Memory Map Branch 1
262 #define PCI_DEVICE_ID_I5000_BRANCH_0 0x25F5
263 #define PCI_DEVICE_ID_I5000_BRANCH_1 0x25F6
265 #define AMB_PRESENT_0 0x64
266 #define AMB_PRESENT_1 0x66
273 #define CHANNELS_PER_BRANCH 2
274 #define MAX_BRANCHES 2
276 /* Defines to extract the vaious fields from the
277 * MTRx - Memory Technology Registers
279 #define MTR_DIMMS_PRESENT(mtr) ((mtr) & (0x1 << 8))
280 #define MTR_DRAM_WIDTH(mtr) ((((mtr) >> 6) & 0x1) ? 8 : 4)
281 #define MTR_DRAM_BANKS(mtr) ((((mtr) >> 5) & 0x1) ? 8 : 4)
282 #define MTR_DRAM_BANKS_ADDR_BITS(mtr) ((MTR_DRAM_BANKS(mtr) == 8) ? 3 : 2)
283 #define MTR_DIMM_RANK(mtr) (((mtr) >> 4) & 0x1)
284 #define MTR_DIMM_RANK_ADDR_BITS(mtr) (MTR_DIMM_RANK(mtr) ? 2 : 1)
285 #define MTR_DIMM_ROWS(mtr) (((mtr) >> 2) & 0x3)
286 #define MTR_DIMM_ROWS_ADDR_BITS(mtr) (MTR_DIMM_ROWS(mtr) + 13)
287 #define MTR_DIMM_COLS(mtr) ((mtr) & 0x3)
288 #define MTR_DIMM_COLS_ADDR_BITS(mtr) (MTR_DIMM_COLS(mtr) + 10)
290 #ifdef CONFIG_EDAC_DEBUG
291 static char *numrow_toString
[] = {
298 static char *numcol_toString
[] = {
299 "1,024 - 10 columns",
300 "2,048 - 11 columns",
301 "4,096 - 12 columns",
306 /* enables the report of miscellaneous messages as CE errors - default off */
307 static int misc_messages
;
309 /* Enumeration of supported devices */
312 I5000V
= 1, /* future */
313 I5000X
= 2 /* future */
316 /* Device name and register DID (Device ID) */
317 struct i5000_dev_info
{
318 const char *ctl_name
; /* name for this device */
319 u16 fsb_mapping_errors
; /* DID for the branchmap,control */
322 /* Table of devices attributes supported by this driver */
323 static const struct i5000_dev_info i5000_devs
[] = {
326 .fsb_mapping_errors
= PCI_DEVICE_ID_INTEL_I5000_DEV16
,
330 struct i5000_dimm_info
{
331 int megabytes
; /* size, 0 means not present */
335 #define MAX_CHANNELS 6 /* max possible channels */
336 #define MAX_CSROWS (8*2) /* max possible csrows per channel */
338 /* driver private data structure */
340 struct pci_dev
*system_address
; /* 16.0 */
341 struct pci_dev
*branchmap_werrors
; /* 16.1 */
342 struct pci_dev
*fsb_error_regs
; /* 16.2 */
343 struct pci_dev
*branch_0
; /* 21.0 */
344 struct pci_dev
*branch_1
; /* 22.0 */
346 u16 tolm
; /* top of low memory */
347 u64 ambase
; /* AMB BAR */
349 u16 mir0
, mir1
, mir2
;
351 u16 b0_mtr
[NUM_MTRS
]; /* Memory Technlogy Reg */
352 u16 b0_ambpresent0
; /* Branch 0, Channel 0 */
353 u16 b0_ambpresent1
; /* Brnach 0, Channel 1 */
355 u16 b1_mtr
[NUM_MTRS
]; /* Memory Technlogy Reg */
356 u16 b1_ambpresent0
; /* Branch 1, Channel 8 */
357 u16 b1_ambpresent1
; /* Branch 1, Channel 1 */
359 /* DIMM information matrix, allocating architecture maximums */
360 struct i5000_dimm_info dimm_info
[MAX_CSROWS
][MAX_CHANNELS
];
362 /* Actual values for this controller */
363 int maxch
; /* Max channels */
364 int maxdimmperch
; /* Max DIMMs per channel */
367 /* I5000 MCH error information retrieved from Hardware */
368 struct i5000_error_info
{
370 /* These registers are always read from the MC */
371 u32 ferr_fat_fbd
; /* First Errors Fatal */
372 u32 nerr_fat_fbd
; /* Next Errors Fatal */
373 u32 ferr_nf_fbd
; /* First Errors Non-Fatal */
374 u32 nerr_nf_fbd
; /* Next Errors Non-Fatal */
376 /* These registers are input ONLY if there was a Recoverable Error */
377 u32 redmemb
; /* Recoverable Mem Data Error log B */
378 u16 recmema
; /* Recoverable Mem Error log A */
379 u32 recmemb
; /* Recoverable Mem Error log B */
381 /* These registers are input ONLY if there was a
382 * Non-Recoverable Error */
383 u16 nrecmema
; /* Non-Recoverable Mem log A */
384 u16 nrecmemb
; /* Non-Recoverable Mem log B */
388 static struct edac_pci_ctl_info
*i5000_pci
;
391 * i5000_get_error_info Retrieve the hardware error information from
392 * the hardware and cache it in the 'info'
395 static void i5000_get_error_info(struct mem_ctl_info
*mci
,
396 struct i5000_error_info
*info
)
398 struct i5000_pvt
*pvt
;
403 /* read in the 1st FATAL error register */
404 pci_read_config_dword(pvt
->branchmap_werrors
, FERR_FAT_FBD
, &value
);
406 /* Mask only the bits that the doc says are valid
408 value
&= (FERR_FAT_FBDCHAN
| FERR_FAT_MASK
);
410 /* If there is an error, then read in the */
411 /* NEXT FATAL error register and the Memory Error Log Register A */
412 if (value
& FERR_FAT_MASK
) {
413 info
->ferr_fat_fbd
= value
;
415 /* harvest the various error data we need */
416 pci_read_config_dword(pvt
->branchmap_werrors
,
417 NERR_FAT_FBD
, &info
->nerr_fat_fbd
);
418 pci_read_config_word(pvt
->branchmap_werrors
,
419 NRECMEMA
, &info
->nrecmema
);
420 pci_read_config_word(pvt
->branchmap_werrors
,
421 NRECMEMB
, &info
->nrecmemb
);
423 /* Clear the error bits, by writing them back */
424 pci_write_config_dword(pvt
->branchmap_werrors
,
425 FERR_FAT_FBD
, value
);
427 info
->ferr_fat_fbd
= 0;
428 info
->nerr_fat_fbd
= 0;
433 /* read in the 1st NON-FATAL error register */
434 pci_read_config_dword(pvt
->branchmap_werrors
, FERR_NF_FBD
, &value
);
436 /* If there is an error, then read in the 1st NON-FATAL error
437 * register as well */
438 if (value
& FERR_NF_MASK
) {
439 info
->ferr_nf_fbd
= value
;
441 /* harvest the various error data we need */
442 pci_read_config_dword(pvt
->branchmap_werrors
,
443 NERR_NF_FBD
, &info
->nerr_nf_fbd
);
444 pci_read_config_word(pvt
->branchmap_werrors
,
445 RECMEMA
, &info
->recmema
);
446 pci_read_config_dword(pvt
->branchmap_werrors
,
447 RECMEMB
, &info
->recmemb
);
448 pci_read_config_dword(pvt
->branchmap_werrors
,
449 REDMEMB
, &info
->redmemb
);
451 /* Clear the error bits, by writing them back */
452 pci_write_config_dword(pvt
->branchmap_werrors
,
455 info
->ferr_nf_fbd
= 0;
456 info
->nerr_nf_fbd
= 0;
464 * i5000_process_fatal_error_info(struct mem_ctl_info *mci,
465 * struct i5000_error_info *info,
466 * int handle_errors);
468 * handle the Intel FATAL errors, if any
470 static void i5000_process_fatal_error_info(struct mem_ctl_info
*mci
,
471 struct i5000_error_info
*info
,
474 char msg
[EDAC_MC_LABEL_LEN
+ 1 + 160];
475 char *specific
= NULL
;
483 /* mask off the Error bits that are possible */
484 allErrors
= (info
->ferr_fat_fbd
& FERR_FAT_MASK
);
486 return; /* if no error, return now */
488 channel
= EXTRACT_FBDCHAN_INDX(info
->ferr_fat_fbd
);
490 /* Use the NON-Recoverable macros to extract data */
491 bank
= NREC_BANK(info
->nrecmema
);
492 rank
= NREC_RANK(info
->nrecmema
);
493 rdwr
= NREC_RDWR(info
->nrecmema
);
494 ras
= NREC_RAS(info
->nrecmemb
);
495 cas
= NREC_CAS(info
->nrecmemb
);
497 debugf0("\t\tCSROW= %d Channel= %d "
498 "(DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
500 rdwr
? "Write" : "Read", ras
, cas
);
502 /* Only 1 bit will be on */
505 specific
= "Alert on non-redundant retry or fast "
509 specific
= "Northbound CRC error on non-redundant "
517 * This error is generated to inform that the intelligent
518 * throttling is disabled and the temperature passed the
519 * specified middle point. Since this is something the BIOS
520 * should take care of, we'll warn only once to avoid
521 * worthlessly flooding the log.
527 specific
= ">Tmid Thermal event with intelligent "
528 "throttling disabled";
533 /* Form out message */
534 snprintf(msg
, sizeof(msg
),
535 "Bank=%d RAS=%d CAS=%d FATAL Err=0x%x (%s)",
536 bank
, ras
, cas
, allErrors
, specific
);
538 /* Call the helper to output message */
539 edac_mc_handle_error(HW_EVENT_ERR_FATAL
, mci
, 0, 0, 0,
540 channel
>> 1, channel
& 1, rank
,
541 rdwr
? "Write error" : "Read error",
546 * i5000_process_fatal_error_info(struct mem_ctl_info *mci,
547 * struct i5000_error_info *info,
548 * int handle_errors);
550 * handle the Intel NON-FATAL errors, if any
552 static void i5000_process_nonfatal_error_info(struct mem_ctl_info
*mci
,
553 struct i5000_error_info
*info
,
556 char msg
[EDAC_MC_LABEL_LEN
+ 1 + 170];
557 char *specific
= NULL
;
569 /* mask off the Error bits that are possible */
570 allErrors
= (info
->ferr_nf_fbd
& FERR_NF_MASK
);
572 return; /* if no error, return now */
574 /* ONLY ONE of the possible error bits will be set, as per the docs */
575 ue_errors
= allErrors
& FERR_NF_UNCORRECTABLE
;
577 debugf0("\tUncorrected bits= 0x%x\n", ue_errors
);
579 branch
= EXTRACT_FBDCHAN_INDX(info
->ferr_nf_fbd
);
582 * According with i5000 datasheet, bit 28 has no significance
583 * for errors M4Err-M12Err and M17Err-M21Err, on FERR_NF_FBD
585 channel
= branch
& 2;
587 bank
= NREC_BANK(info
->nrecmema
);
588 rank
= NREC_RANK(info
->nrecmema
);
589 rdwr
= NREC_RDWR(info
->nrecmema
);
590 ras
= NREC_RAS(info
->nrecmemb
);
591 cas
= NREC_CAS(info
->nrecmemb
);
594 ("\t\tCSROW= %d Channels= %d,%d (Branch= %d "
595 "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
596 rank
, channel
, channel
+ 1, branch
>> 1, bank
,
597 rdwr
? "Write" : "Read", ras
, cas
);
601 specific
= "Non-Aliased Uncorrectable Patrol Data ECC";
604 specific
= "Non-Aliased Uncorrectable Spare-Copy "
608 specific
= "Non-Aliased Uncorrectable Mirrored Demand "
612 specific
= "Non-Aliased Uncorrectable Non-Mirrored "
616 specific
= "Aliased Uncorrectable Patrol Data ECC";
619 specific
= "Aliased Uncorrectable Spare-Copy Data ECC";
622 specific
= "Aliased Uncorrectable Mirrored Demand "
626 specific
= "Aliased Uncorrectable Non-Mirrored Demand "
630 specific
= "Uncorrectable Data ECC on Replay";
634 /* Form out message */
635 snprintf(msg
, sizeof(msg
),
636 "Rank=%d Bank=%d RAS=%d CAS=%d, UE Err=0x%x (%s)",
637 rank
, bank
, ras
, cas
, ue_errors
, specific
);
639 /* Call the helper to output message */
640 edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED
, mci
, 0, 0, 0,
641 channel
>> 1, -1, rank
,
642 rdwr
? "Write error" : "Read error",
646 /* Check correctable errors */
647 ce_errors
= allErrors
& FERR_NF_CORRECTABLE
;
649 debugf0("\tCorrected bits= 0x%x\n", ce_errors
);
651 branch
= EXTRACT_FBDCHAN_INDX(info
->ferr_nf_fbd
);
654 if (REC_ECC_LOCATOR_ODD(info
->redmemb
))
657 /* Convert channel to be based from zero, instead of
658 * from branch base of 0 */
661 bank
= REC_BANK(info
->recmema
);
662 rank
= REC_RANK(info
->recmema
);
663 rdwr
= REC_RDWR(info
->recmema
);
664 ras
= REC_RAS(info
->recmemb
);
665 cas
= REC_CAS(info
->recmemb
);
667 debugf0("\t\tCSROW= %d Channel= %d (Branch %d "
668 "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
669 rank
, channel
, branch
>> 1, bank
,
670 rdwr
? "Write" : "Read", ras
, cas
);
674 specific
= "Correctable Non-Mirrored Demand Data ECC";
677 specific
= "Correctable Mirrored Demand Data ECC";
680 specific
= "Correctable Spare-Copy Data ECC";
683 specific
= "Correctable Patrol Data ECC";
687 /* Form out message */
688 snprintf(msg
, sizeof(msg
),
689 "Rank=%d Bank=%d RDWR=%s RAS=%d "
690 "CAS=%d, CE Err=0x%x (%s))", branch
>> 1, bank
,
691 rdwr
? "Write" : "Read", ras
, cas
, ce_errors
,
694 /* Call the helper to output message */
695 edac_mc_handle_error(HW_EVENT_ERR_CORRECTED
, mci
, 0, 0, 0,
696 channel
>> 1, channel
% 2, rank
,
697 rdwr
? "Write error" : "Read error",
704 misc_errors
= allErrors
& (FERR_NF_NON_RETRY
| FERR_NF_NORTH_CRC
|
705 FERR_NF_SPD_PROTOCOL
| FERR_NF_DIMM_SPARE
);
707 switch (misc_errors
) {
709 specific
= "Non-Retry or Redundant Retry FBD Memory "
710 "Alert or Redundant Fast Reset Timeout";
713 specific
= "Non-Retry or Redundant Retry FBD "
714 "Configuration Alert";
717 specific
= "Non-Retry or Redundant Retry FBD "
718 "Northbound CRC error on read data";
721 specific
= "FBD Northbound CRC error on "
725 specific
= "SPD protocol error";
728 specific
= "DIMM-spare copy started";
731 specific
= "DIMM-spare copy completed";
734 branch
= EXTRACT_FBDCHAN_INDX(info
->ferr_nf_fbd
);
736 /* Form out message */
737 snprintf(msg
, sizeof(msg
),
738 "Err=%#x (%s)", misc_errors
, specific
);
740 /* Call the helper to output message */
741 edac_mc_handle_error(HW_EVENT_ERR_CORRECTED
, mci
, 0, 0, 0,
743 "Misc error", msg
, NULL
);
748 * i5000_process_error_info Process the error info that is
749 * in the 'info' structure, previously retrieved from hardware
751 static void i5000_process_error_info(struct mem_ctl_info
*mci
,
752 struct i5000_error_info
*info
,
755 /* First handle any fatal errors that occurred */
756 i5000_process_fatal_error_info(mci
, info
, handle_errors
);
758 /* now handle any non-fatal errors that occurred */
759 i5000_process_nonfatal_error_info(mci
, info
, handle_errors
);
763 * i5000_clear_error Retrieve any error from the hardware
764 * but do NOT process that error.
765 * Used for 'clearing' out of previous errors
766 * Called by the Core module.
768 static void i5000_clear_error(struct mem_ctl_info
*mci
)
770 struct i5000_error_info info
;
772 i5000_get_error_info(mci
, &info
);
776 * i5000_check_error Retrieve and process errors reported by the
777 * hardware. Called by the Core module.
779 static void i5000_check_error(struct mem_ctl_info
*mci
)
781 struct i5000_error_info info
;
782 debugf4("MC%d: %s: %s()\n", mci
->mc_idx
, __FILE__
, __func__
);
783 i5000_get_error_info(mci
, &info
);
784 i5000_process_error_info(mci
, &info
, 1);
788 * i5000_get_devices Find and perform 'get' operation on the MCH's
789 * device/functions we want to reference for this driver
791 * Need to 'get' device 16 func 1 and func 2
793 static int i5000_get_devices(struct mem_ctl_info
*mci
, int dev_idx
)
795 //const struct i5000_dev_info *i5000_dev = &i5000_devs[dev_idx];
796 struct i5000_pvt
*pvt
;
797 struct pci_dev
*pdev
;
801 /* Attempt to 'get' the MCH register we want */
804 pdev
= pci_get_device(PCI_VENDOR_ID_INTEL
,
805 PCI_DEVICE_ID_INTEL_I5000_DEV16
, pdev
);
807 /* End of list, leave */
809 i5000_printk(KERN_ERR
,
810 "'system address,Process Bus' "
812 "vendor 0x%x device 0x%x FUNC 1 "
815 PCI_DEVICE_ID_INTEL_I5000_DEV16
);
820 /* Scan for device 16 func 1 */
821 if (PCI_FUNC(pdev
->devfn
) == 1)
825 pvt
->branchmap_werrors
= pdev
;
827 /* Attempt to 'get' the MCH register we want */
830 pdev
= pci_get_device(PCI_VENDOR_ID_INTEL
,
831 PCI_DEVICE_ID_INTEL_I5000_DEV16
, pdev
);
834 i5000_printk(KERN_ERR
,
835 "MC: 'branchmap,control,errors' "
837 "vendor 0x%x device 0x%x Func 2 "
840 PCI_DEVICE_ID_INTEL_I5000_DEV16
);
842 pci_dev_put(pvt
->branchmap_werrors
);
846 /* Scan for device 16 func 1 */
847 if (PCI_FUNC(pdev
->devfn
) == 2)
851 pvt
->fsb_error_regs
= pdev
;
853 debugf1("System Address, processor bus- PCI Bus ID: %s %x:%x\n",
854 pci_name(pvt
->system_address
),
855 pvt
->system_address
->vendor
, pvt
->system_address
->device
);
856 debugf1("Branchmap, control and errors - PCI Bus ID: %s %x:%x\n",
857 pci_name(pvt
->branchmap_werrors
),
858 pvt
->branchmap_werrors
->vendor
, pvt
->branchmap_werrors
->device
);
859 debugf1("FSB Error Regs - PCI Bus ID: %s %x:%x\n",
860 pci_name(pvt
->fsb_error_regs
),
861 pvt
->fsb_error_regs
->vendor
, pvt
->fsb_error_regs
->device
);
864 pdev
= pci_get_device(PCI_VENDOR_ID_INTEL
,
865 PCI_DEVICE_ID_I5000_BRANCH_0
, pdev
);
868 i5000_printk(KERN_ERR
,
869 "MC: 'BRANCH 0' device not found:"
870 "vendor 0x%x device 0x%x Func 0 (broken BIOS?)\n",
871 PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_I5000_BRANCH_0
);
873 pci_dev_put(pvt
->branchmap_werrors
);
874 pci_dev_put(pvt
->fsb_error_regs
);
878 pvt
->branch_0
= pdev
;
880 /* If this device claims to have more than 2 channels then
881 * fetch Branch 1's information
883 if (pvt
->maxch
>= CHANNELS_PER_BRANCH
) {
885 pdev
= pci_get_device(PCI_VENDOR_ID_INTEL
,
886 PCI_DEVICE_ID_I5000_BRANCH_1
, pdev
);
889 i5000_printk(KERN_ERR
,
890 "MC: 'BRANCH 1' device not found:"
891 "vendor 0x%x device 0x%x Func 0 "
894 PCI_DEVICE_ID_I5000_BRANCH_1
);
896 pci_dev_put(pvt
->branchmap_werrors
);
897 pci_dev_put(pvt
->fsb_error_regs
);
898 pci_dev_put(pvt
->branch_0
);
902 pvt
->branch_1
= pdev
;
909 * i5000_put_devices 'put' all the devices that we have
912 static void i5000_put_devices(struct mem_ctl_info
*mci
)
914 struct i5000_pvt
*pvt
;
918 pci_dev_put(pvt
->branchmap_werrors
); /* FUNC 1 */
919 pci_dev_put(pvt
->fsb_error_regs
); /* FUNC 2 */
920 pci_dev_put(pvt
->branch_0
); /* DEV 21 */
922 /* Only if more than 2 channels do we release the second branch */
923 if (pvt
->maxch
>= CHANNELS_PER_BRANCH
)
924 pci_dev_put(pvt
->branch_1
); /* DEV 22 */
928 * determine_amb_resent
930 * the information is contained in NUM_MTRS different registers
931 * determineing which of the NUM_MTRS requires knowing
932 * which channel is in question
934 * 2 branches, each with 2 channels
935 * b0_ambpresent0 for channel '0'
936 * b0_ambpresent1 for channel '1'
937 * b1_ambpresent0 for channel '2'
938 * b1_ambpresent1 for channel '3'
940 static int determine_amb_present_reg(struct i5000_pvt
*pvt
, int channel
)
944 if (channel
< CHANNELS_PER_BRANCH
) {
946 amb_present
= pvt
->b0_ambpresent1
;
948 amb_present
= pvt
->b0_ambpresent0
;
951 amb_present
= pvt
->b1_ambpresent1
;
953 amb_present
= pvt
->b1_ambpresent0
;
960 * determine_mtr(pvt, csrow, channel)
962 * return the proper MTR register as determine by the csrow and channel desired
964 static int determine_mtr(struct i5000_pvt
*pvt
, int slot
, int channel
)
968 if (channel
< CHANNELS_PER_BRANCH
)
969 mtr
= pvt
->b0_mtr
[slot
];
971 mtr
= pvt
->b1_mtr
[slot
];
978 static void decode_mtr(int slot_row
, u16 mtr
)
982 ans
= MTR_DIMMS_PRESENT(mtr
);
984 debugf2("\tMTR%d=0x%x: DIMMs are %s\n", slot_row
, mtr
,
985 ans
? "Present" : "NOT Present");
989 debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr
));
990 debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr
));
991 debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr
) ? "double" : "single");
992 debugf2("\t\tNUMROW: %s\n", numrow_toString
[MTR_DIMM_ROWS(mtr
)]);
993 debugf2("\t\tNUMCOL: %s\n", numcol_toString
[MTR_DIMM_COLS(mtr
)]);
996 static void handle_channel(struct i5000_pvt
*pvt
, int slot
, int channel
,
997 struct i5000_dimm_info
*dinfo
)
1000 int amb_present_reg
;
1003 mtr
= determine_mtr(pvt
, slot
, channel
);
1004 if (MTR_DIMMS_PRESENT(mtr
)) {
1005 amb_present_reg
= determine_amb_present_reg(pvt
, channel
);
1007 /* Determine if there is a DIMM present in this DIMM slot */
1008 if (amb_present_reg
) {
1009 dinfo
->dual_rank
= MTR_DIMM_RANK(mtr
);
1011 /* Start with the number of bits for a Bank
1013 addrBits
= MTR_DRAM_BANKS_ADDR_BITS(mtr
);
1014 /* Add the number of ROW bits */
1015 addrBits
+= MTR_DIMM_ROWS_ADDR_BITS(mtr
);
1016 /* add the number of COLUMN bits */
1017 addrBits
+= MTR_DIMM_COLS_ADDR_BITS(mtr
);
1019 addrBits
+= 6; /* add 64 bits per DIMM */
1020 addrBits
-= 20; /* divide by 2^^20 */
1021 addrBits
-= 3; /* 8 bits per bytes */
1023 dinfo
->megabytes
= 1 << addrBits
;
1029 * calculate_dimm_size
1031 * also will output a DIMM matrix map, if debug is enabled, for viewing
1032 * how the DIMMs are populated
1034 static void calculate_dimm_size(struct i5000_pvt
*pvt
)
1036 struct i5000_dimm_info
*dinfo
;
1037 int slot
, channel
, branch
;
1038 char *p
, *mem_buffer
;
1041 /* ================= Generate some debug output ================= */
1043 mem_buffer
= p
= kmalloc(space
, GFP_KERNEL
);
1045 i5000_printk(KERN_ERR
, "MC: %s:%s() kmalloc() failed\n",
1046 __FILE__
, __func__
);
1050 /* Scan all the actual slots
1051 * and calculate the information for each DIMM
1052 * Start with the highest slot first, to display it first
1053 * and work toward the 0th slot
1055 for (slot
= pvt
->maxdimmperch
- 1; slot
>= 0; slot
--) {
1057 /* on an odd slot, first output a 'boundary' marker,
1058 * then reset the message buffer */
1060 n
= snprintf(p
, space
, "--------------------------"
1061 "--------------------------------");
1064 debugf2("%s\n", mem_buffer
);
1068 n
= snprintf(p
, space
, "slot %2d ", slot
);
1072 for (channel
= 0; channel
< pvt
->maxch
; channel
++) {
1073 dinfo
= &pvt
->dimm_info
[slot
][channel
];
1074 handle_channel(pvt
, slot
, channel
, dinfo
);
1075 if (dinfo
->megabytes
)
1076 n
= snprintf(p
, space
, "%4d MB %dR| ",
1077 dinfo
->megabytes
, dinfo
->dual_rank
+ 1);
1079 n
= snprintf(p
, space
, "%4d MB | ", 0);
1085 debugf2("%s\n", mem_buffer
);
1090 /* Output the last bottom 'boundary' marker */
1091 n
= snprintf(p
, space
, "--------------------------"
1092 "--------------------------------");
1095 debugf2("%s\n", mem_buffer
);
1099 /* now output the 'channel' labels */
1100 n
= snprintf(p
, space
, " ");
1103 for (channel
= 0; channel
< pvt
->maxch
; channel
++) {
1104 n
= snprintf(p
, space
, "channel %d | ", channel
);
1108 debugf2("%s\n", mem_buffer
);
1112 n
= snprintf(p
, space
, " ");
1114 for (branch
= 0; branch
< MAX_BRANCHES
; branch
++) {
1115 n
= snprintf(p
, space
, " branch %d | ", branch
);
1120 /* output the last message and free buffer */
1121 debugf2("%s\n", mem_buffer
);
1126 * i5000_get_mc_regs read in the necessary registers and
1129 * Fills in the private data members
1131 static void i5000_get_mc_regs(struct mem_ctl_info
*mci
)
1133 struct i5000_pvt
*pvt
;
1141 pvt
= mci
->pvt_info
;
1143 pci_read_config_dword(pvt
->system_address
, AMBASE
,
1144 (u32
*) & pvt
->ambase
);
1145 pci_read_config_dword(pvt
->system_address
, AMBASE
+ sizeof(u32
),
1146 ((u32
*) & pvt
->ambase
) + sizeof(u32
));
1148 maxdimmperch
= pvt
->maxdimmperch
;
1151 debugf2("AMBASE= 0x%lx MAXCH= %d MAX-DIMM-Per-CH= %d\n",
1152 (long unsigned int)pvt
->ambase
, pvt
->maxch
, pvt
->maxdimmperch
);
1154 /* Get the Branch Map regs */
1155 pci_read_config_word(pvt
->branchmap_werrors
, TOLM
, &pvt
->tolm
);
1157 debugf2("\nTOLM (number of 256M regions) =%u (0x%x)\n", pvt
->tolm
,
1160 actual_tolm
= pvt
->tolm
<< 28;
1161 debugf2("Actual TOLM byte addr=%u (0x%x)\n", actual_tolm
, actual_tolm
);
1163 pci_read_config_word(pvt
->branchmap_werrors
, MIR0
, &pvt
->mir0
);
1164 pci_read_config_word(pvt
->branchmap_werrors
, MIR1
, &pvt
->mir1
);
1165 pci_read_config_word(pvt
->branchmap_werrors
, MIR2
, &pvt
->mir2
);
1167 /* Get the MIR[0-2] regs */
1168 limit
= (pvt
->mir0
>> 4) & 0x0FFF;
1169 way0
= pvt
->mir0
& 0x1;
1170 way1
= pvt
->mir0
& 0x2;
1171 debugf2("MIR0: limit= 0x%x WAY1= %u WAY0= %x\n", limit
, way1
, way0
);
1172 limit
= (pvt
->mir1
>> 4) & 0x0FFF;
1173 way0
= pvt
->mir1
& 0x1;
1174 way1
= pvt
->mir1
& 0x2;
1175 debugf2("MIR1: limit= 0x%x WAY1= %u WAY0= %x\n", limit
, way1
, way0
);
1176 limit
= (pvt
->mir2
>> 4) & 0x0FFF;
1177 way0
= pvt
->mir2
& 0x1;
1178 way1
= pvt
->mir2
& 0x2;
1179 debugf2("MIR2: limit= 0x%x WAY1= %u WAY0= %x\n", limit
, way1
, way0
);
1181 /* Get the MTR[0-3] regs */
1182 for (slot_row
= 0; slot_row
< NUM_MTRS
; slot_row
++) {
1183 int where
= MTR0
+ (slot_row
* sizeof(u32
));
1185 pci_read_config_word(pvt
->branch_0
, where
,
1186 &pvt
->b0_mtr
[slot_row
]);
1188 debugf2("MTR%d where=0x%x B0 value=0x%x\n", slot_row
, where
,
1189 pvt
->b0_mtr
[slot_row
]);
1191 if (pvt
->maxch
>= CHANNELS_PER_BRANCH
) {
1192 pci_read_config_word(pvt
->branch_1
, where
,
1193 &pvt
->b1_mtr
[slot_row
]);
1194 debugf2("MTR%d where=0x%x B1 value=0x%x\n", slot_row
,
1195 where
, pvt
->b1_mtr
[slot_row
]);
1197 pvt
->b1_mtr
[slot_row
] = 0;
1201 /* Read and dump branch 0's MTRs */
1202 debugf2("\nMemory Technology Registers:\n");
1203 debugf2(" Branch 0:\n");
1204 for (slot_row
= 0; slot_row
< NUM_MTRS
; slot_row
++) {
1205 decode_mtr(slot_row
, pvt
->b0_mtr
[slot_row
]);
1207 pci_read_config_word(pvt
->branch_0
, AMB_PRESENT_0
,
1208 &pvt
->b0_ambpresent0
);
1209 debugf2("\t\tAMB-Branch 0-present0 0x%x:\n", pvt
->b0_ambpresent0
);
1210 pci_read_config_word(pvt
->branch_0
, AMB_PRESENT_1
,
1211 &pvt
->b0_ambpresent1
);
1212 debugf2("\t\tAMB-Branch 0-present1 0x%x:\n", pvt
->b0_ambpresent1
);
1214 /* Only if we have 2 branchs (4 channels) */
1215 if (pvt
->maxch
< CHANNELS_PER_BRANCH
) {
1216 pvt
->b1_ambpresent0
= 0;
1217 pvt
->b1_ambpresent1
= 0;
1219 /* Read and dump branch 1's MTRs */
1220 debugf2(" Branch 1:\n");
1221 for (slot_row
= 0; slot_row
< NUM_MTRS
; slot_row
++) {
1222 decode_mtr(slot_row
, pvt
->b1_mtr
[slot_row
]);
1224 pci_read_config_word(pvt
->branch_1
, AMB_PRESENT_0
,
1225 &pvt
->b1_ambpresent0
);
1226 debugf2("\t\tAMB-Branch 1-present0 0x%x:\n",
1227 pvt
->b1_ambpresent0
);
1228 pci_read_config_word(pvt
->branch_1
, AMB_PRESENT_1
,
1229 &pvt
->b1_ambpresent1
);
1230 debugf2("\t\tAMB-Branch 1-present1 0x%x:\n",
1231 pvt
->b1_ambpresent1
);
1234 /* Go and determine the size of each DIMM and place in an
1236 calculate_dimm_size(pvt
);
1240 * i5000_init_csrows Initialize the 'csrows' table within
1241 * the mci control structure with the
1242 * addressing of memory.
1246 * 1 no actual memory found on this MC
1248 static int i5000_init_csrows(struct mem_ctl_info
*mci
)
1250 struct i5000_pvt
*pvt
;
1251 struct dimm_info
*dimm
;
1252 int empty
, channel_count
;
1259 pvt
= mci
->pvt_info
;
1261 channel_count
= pvt
->maxch
;
1262 max_csrows
= pvt
->maxdimmperch
* 2;
1264 empty
= 1; /* Assume NO memory */
1267 * FIXME: The memory layout used to map slot/channel into the
1268 * real memory architecture is weird: branch+slot are "csrows"
1269 * and channel is channel. That required an extra array (dimm_info)
1270 * to map the dimms. A good cleanup would be to remove this array,
1271 * and do a loop here with branch, channel, slot
1273 for (slot
= 0; slot
< max_csrows
; slot
++) {
1274 for (channel
= 0; channel
< pvt
->maxch
; channel
++) {
1276 mtr
= determine_mtr(pvt
, slot
, channel
);
1278 if (!MTR_DIMMS_PRESENT(mtr
))
1281 dimm
= EDAC_DIMM_PTR(mci
->layers
, mci
->dimms
, mci
->n_layers
,
1282 channel
/ MAX_BRANCHES
,
1283 channel
% MAX_BRANCHES
, slot
);
1285 csrow_megs
= pvt
->dimm_info
[slot
][channel
].megabytes
;
1288 /* Assume DDR2 for now */
1289 dimm
->mtype
= MEM_FB_DDR2
;
1291 /* ask what device type on this row */
1292 if (MTR_DRAM_WIDTH(mtr
))
1293 dimm
->dtype
= DEV_X8
;
1295 dimm
->dtype
= DEV_X4
;
1297 dimm
->edac_mode
= EDAC_S8ECD8ED
;
1298 dimm
->nr_pages
= csrow_megs
<< 8;
1308 * i5000_enable_error_reporting
1309 * Turn on the memory reporting features of the hardware
1311 static void i5000_enable_error_reporting(struct mem_ctl_info
*mci
)
1313 struct i5000_pvt
*pvt
;
1316 pvt
= mci
->pvt_info
;
1318 /* Read the FBD Error Mask Register */
1319 pci_read_config_dword(pvt
->branchmap_werrors
, EMASK_FBD
,
1322 /* Enable with a '0' */
1323 fbd_error_mask
&= ~(ENABLE_EMASK_ALL
);
1325 pci_write_config_dword(pvt
->branchmap_werrors
, EMASK_FBD
,
1330 * i5000_get_dimm_and_channel_counts(pdev, &nr_csrows, &num_channels)
1332 * ask the device how many channels are present and how many CSROWS
1335 static void i5000_get_dimm_and_channel_counts(struct pci_dev
*pdev
,
1336 int *num_dimms_per_channel
,
1341 /* Need to retrieve just how many channels and dimms per channel are
1342 * supported on this memory controller
1344 pci_read_config_byte(pdev
, MAXDIMMPERCH
, &value
);
1345 *num_dimms_per_channel
= (int)value
;
1347 pci_read_config_byte(pdev
, MAXCH
, &value
);
1348 *num_channels
= (int)value
;
1352 * i5000_probe1 Probe for ONE instance of device to see if it is
1355 * 0 for FOUND a device
1356 * < 0 for error code
1358 static int i5000_probe1(struct pci_dev
*pdev
, int dev_idx
)
1360 struct mem_ctl_info
*mci
;
1361 struct edac_mc_layer layers
[3];
1362 struct i5000_pvt
*pvt
;
1364 int num_dimms_per_channel
;
1366 debugf0("MC: %s: %s(), pdev bus %u dev=0x%x fn=0x%x\n",
1369 PCI_SLOT(pdev
->devfn
), PCI_FUNC(pdev
->devfn
));
1371 /* We only are looking for func 0 of the set */
1372 if (PCI_FUNC(pdev
->devfn
) != 0)
1375 /* Ask the devices for the number of CSROWS and CHANNELS so
1376 * that we can calculate the memory resources, etc
1378 * The Chipset will report what it can handle which will be greater
1379 * or equal to what the motherboard manufacturer will implement.
1381 * As we don't have a motherboard identification routine to determine
1382 * actual number of slots/dimms per channel, we thus utilize the
1383 * resource as specified by the chipset. Thus, we might have
1384 * have more DIMMs per channel than actually on the mobo, but this
1385 * allows the driver to support up to the chipset max, without
1386 * some fancy mobo determination.
1388 i5000_get_dimm_and_channel_counts(pdev
, &num_dimms_per_channel
,
1391 debugf0("MC: %s(): Number of Branches=2 Channels= %d DIMMS= %d\n",
1392 __func__
, num_channels
, num_dimms_per_channel
);
1394 /* allocate a new MC control structure */
1396 layers
[0].type
= EDAC_MC_LAYER_BRANCH
;
1397 layers
[0].size
= MAX_BRANCHES
;
1398 layers
[0].is_virt_csrow
= false;
1399 layers
[1].type
= EDAC_MC_LAYER_CHANNEL
;
1400 layers
[1].size
= num_channels
/ MAX_BRANCHES
;
1401 layers
[1].is_virt_csrow
= false;
1402 layers
[2].type
= EDAC_MC_LAYER_SLOT
;
1403 layers
[2].size
= num_dimms_per_channel
;
1404 layers
[2].is_virt_csrow
= true;
1405 mci
= edac_mc_alloc(0, ARRAY_SIZE(layers
), layers
, sizeof(*pvt
));
1409 kobject_get(&mci
->edac_mci_kobj
);
1410 debugf0("MC: %s: %s(): mci = %p\n", __FILE__
, __func__
, mci
);
1412 mci
->dev
= &pdev
->dev
; /* record ptr to the generic device */
1414 pvt
= mci
->pvt_info
;
1415 pvt
->system_address
= pdev
; /* Record this device in our private */
1416 pvt
->maxch
= num_channels
;
1417 pvt
->maxdimmperch
= num_dimms_per_channel
;
1419 /* 'get' the pci devices we want to reserve for our use */
1420 if (i5000_get_devices(mci
, dev_idx
))
1423 /* Time to get serious */
1424 i5000_get_mc_regs(mci
); /* retrieve the hardware registers */
1427 mci
->mtype_cap
= MEM_FLAG_FB_DDR2
;
1428 mci
->edac_ctl_cap
= EDAC_FLAG_NONE
;
1429 mci
->edac_cap
= EDAC_FLAG_NONE
;
1430 mci
->mod_name
= "i5000_edac.c";
1431 mci
->mod_ver
= I5000_REVISION
;
1432 mci
->ctl_name
= i5000_devs
[dev_idx
].ctl_name
;
1433 mci
->dev_name
= pci_name(pdev
);
1434 mci
->ctl_page_to_phys
= NULL
;
1436 /* Set the function pointer to an actual operation function */
1437 mci
->edac_check
= i5000_check_error
;
1439 /* initialize the MC control structure 'csrows' table
1440 * with the mapping and control information */
1441 if (i5000_init_csrows(mci
)) {
1442 debugf0("MC: Setting mci->edac_cap to EDAC_FLAG_NONE\n"
1443 " because i5000_init_csrows() returned nonzero "
1445 mci
->edac_cap
= EDAC_FLAG_NONE
; /* no csrows found */
1447 debugf1("MC: Enable error reporting now\n");
1448 i5000_enable_error_reporting(mci
);
1451 /* add this new MC control structure to EDAC's list of MCs */
1452 if (edac_mc_add_mc(mci
)) {
1453 debugf0("MC: %s: %s(): failed edac_mc_add_mc()\n",
1454 __FILE__
, __func__
);
1455 /* FIXME: perhaps some code should go here that disables error
1456 * reporting if we just enabled it
1461 i5000_clear_error(mci
);
1463 /* allocating generic PCI control info */
1464 i5000_pci
= edac_pci_create_generic_ctl(&pdev
->dev
, EDAC_MOD_STR
);
1467 "%s(): Unable to create PCI control\n",
1470 "%s(): PCI error report via EDAC not setup\n",
1476 /* Error exit unwinding stack */
1479 i5000_put_devices(mci
);
1482 kobject_put(&mci
->edac_mci_kobj
);
1488 * i5000_init_one constructor for one instance of device
1494 static int __devinit
i5000_init_one(struct pci_dev
*pdev
,
1495 const struct pci_device_id
*id
)
1499 debugf0("MC: %s: %s()\n", __FILE__
, __func__
);
1501 /* wake up device */
1502 rc
= pci_enable_device(pdev
);
1506 /* now probe and enable the device */
1507 return i5000_probe1(pdev
, id
->driver_data
);
1511 * i5000_remove_one destructor for one instance of device
1514 static void __devexit
i5000_remove_one(struct pci_dev
*pdev
)
1516 struct mem_ctl_info
*mci
;
1518 debugf0("%s: %s()\n", __FILE__
, __func__
);
1521 edac_pci_release_generic_ctl(i5000_pci
);
1523 if ((mci
= edac_mc_del_mc(&pdev
->dev
)) == NULL
)
1526 /* retrieve references to resources, and free those resources */
1527 i5000_put_devices(mci
);
1528 kobject_put(&mci
->edac_mci_kobj
);
1533 * pci_device_id table for which devices we are looking for
1535 * The "E500P" device is the first device supported.
1537 static DEFINE_PCI_DEVICE_TABLE(i5000_pci_tbl
) = {
1538 {PCI_DEVICE(PCI_VENDOR_ID_INTEL
, PCI_DEVICE_ID_INTEL_I5000_DEV16
),
1539 .driver_data
= I5000P
},
1541 {0,} /* 0 terminated list. */
1544 MODULE_DEVICE_TABLE(pci
, i5000_pci_tbl
);
1547 * i5000_driver pci_driver structure for this module
1550 static struct pci_driver i5000_driver
= {
1551 .name
= KBUILD_BASENAME
,
1552 .probe
= i5000_init_one
,
1553 .remove
= __devexit_p(i5000_remove_one
),
1554 .id_table
= i5000_pci_tbl
,
1558 * i5000_init Module entry function
1559 * Try to initialize this module for its devices
1561 static int __init
i5000_init(void)
1565 debugf2("MC: %s: %s()\n", __FILE__
, __func__
);
1567 /* Ensure that the OPSTATE is set correctly for POLL or NMI */
1570 pci_rc
= pci_register_driver(&i5000_driver
);
1572 return (pci_rc
< 0) ? pci_rc
: 0;
1576 * i5000_exit() Module exit function
1577 * Unregister the driver
1579 static void __exit
i5000_exit(void)
1581 debugf2("MC: %s: %s()\n", __FILE__
, __func__
);
1582 pci_unregister_driver(&i5000_driver
);
1585 module_init(i5000_init
);
1586 module_exit(i5000_exit
);
1588 MODULE_LICENSE("GPL");
1590 ("Linux Networx (http://lnxi.com) Doug Thompson <norsk5@xmission.com>");
1591 MODULE_DESCRIPTION("MC Driver for Intel I5000 memory controllers - "
1594 module_param(edac_op_state
, int, 0444);
1595 MODULE_PARM_DESC(edac_op_state
, "EDAC Error Reporting state: 0=Poll,1=NMI");
1596 module_param(misc_messages
, int, 0444);
1597 MODULE_PARM_DESC(misc_messages
, "Log miscellaneous non fatal messages");