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 various 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 /* enables the report of miscellaneous messages as CE errors - default off */
291 static int misc_messages;
293 /* Enumeration of supported devices */
296 I5000V = 1, /* future */
297 I5000X = 2 /* future */
300 /* Device name and register DID (Device ID) */
301 struct i5000_dev_info {
302 const char *ctl_name; /* name for this device */
303 u16 fsb_mapping_errors; /* DID for the branchmap,control */
306 /* Table of devices attributes supported by this driver */
307 static const struct i5000_dev_info i5000_devs[] = {
310 .fsb_mapping_errors = PCI_DEVICE_ID_INTEL_I5000_DEV16,
314 struct i5000_dimm_info {
315 int megabytes; /* size, 0 means not present */
319 #define MAX_CHANNELS 6 /* max possible channels */
320 #define MAX_CSROWS (8*2) /* max possible csrows per channel */
322 /* driver private data structure */
324 struct pci_dev *system_address; /* 16.0 */
325 struct pci_dev *branchmap_werrors; /* 16.1 */
326 struct pci_dev *fsb_error_regs; /* 16.2 */
327 struct pci_dev *branch_0; /* 21.0 */
328 struct pci_dev *branch_1; /* 22.0 */
330 u16 tolm; /* top of low memory */
331 u64 ambase; /* AMB BAR */
333 u16 mir0, mir1, mir2;
335 u16 b0_mtr[NUM_MTRS]; /* Memory Technlogy Reg */
336 u16 b0_ambpresent0; /* Branch 0, Channel 0 */
337 u16 b0_ambpresent1; /* Brnach 0, Channel 1 */
339 u16 b1_mtr[NUM_MTRS]; /* Memory Technlogy Reg */
340 u16 b1_ambpresent0; /* Branch 1, Channel 8 */
341 u16 b1_ambpresent1; /* Branch 1, Channel 1 */
343 /* DIMM information matrix, allocating architecture maximums */
344 struct i5000_dimm_info dimm_info[MAX_CSROWS][MAX_CHANNELS];
346 /* Actual values for this controller */
347 int maxch; /* Max channels */
348 int maxdimmperch; /* Max DIMMs per channel */
351 /* I5000 MCH error information retrieved from Hardware */
352 struct i5000_error_info {
354 /* These registers are always read from the MC */
355 u32 ferr_fat_fbd; /* First Errors Fatal */
356 u32 nerr_fat_fbd; /* Next Errors Fatal */
357 u32 ferr_nf_fbd; /* First Errors Non-Fatal */
358 u32 nerr_nf_fbd; /* Next Errors Non-Fatal */
360 /* These registers are input ONLY if there was a Recoverable Error */
361 u32 redmemb; /* Recoverable Mem Data Error log B */
362 u16 recmema; /* Recoverable Mem Error log A */
363 u32 recmemb; /* Recoverable Mem Error log B */
365 /* These registers are input ONLY if there was a
366 * Non-Recoverable Error */
367 u16 nrecmema; /* Non-Recoverable Mem log A */
368 u16 nrecmemb; /* Non-Recoverable Mem log B */
372 static struct edac_pci_ctl_info *i5000_pci;
375 * i5000_get_error_info Retrieve the hardware error information from
376 * the hardware and cache it in the 'info'
379 static void i5000_get_error_info(struct mem_ctl_info *mci,
380 struct i5000_error_info *info)
382 struct i5000_pvt *pvt;
387 /* read in the 1st FATAL error register */
388 pci_read_config_dword(pvt->branchmap_werrors, FERR_FAT_FBD, &value);
390 /* Mask only the bits that the doc says are valid
392 value &= (FERR_FAT_FBDCHAN | FERR_FAT_MASK);
394 /* If there is an error, then read in the */
395 /* NEXT FATAL error register and the Memory Error Log Register A */
396 if (value & FERR_FAT_MASK) {
397 info->ferr_fat_fbd = value;
399 /* harvest the various error data we need */
400 pci_read_config_dword(pvt->branchmap_werrors,
401 NERR_FAT_FBD, &info->nerr_fat_fbd);
402 pci_read_config_word(pvt->branchmap_werrors,
403 NRECMEMA, &info->nrecmema);
404 pci_read_config_word(pvt->branchmap_werrors,
405 NRECMEMB, &info->nrecmemb);
407 /* Clear the error bits, by writing them back */
408 pci_write_config_dword(pvt->branchmap_werrors,
409 FERR_FAT_FBD, value);
411 info->ferr_fat_fbd = 0;
412 info->nerr_fat_fbd = 0;
417 /* read in the 1st NON-FATAL error register */
418 pci_read_config_dword(pvt->branchmap_werrors, FERR_NF_FBD, &value);
420 /* If there is an error, then read in the 1st NON-FATAL error
421 * register as well */
422 if (value & FERR_NF_MASK) {
423 info->ferr_nf_fbd = value;
425 /* harvest the various error data we need */
426 pci_read_config_dword(pvt->branchmap_werrors,
427 NERR_NF_FBD, &info->nerr_nf_fbd);
428 pci_read_config_word(pvt->branchmap_werrors,
429 RECMEMA, &info->recmema);
430 pci_read_config_dword(pvt->branchmap_werrors,
431 RECMEMB, &info->recmemb);
432 pci_read_config_dword(pvt->branchmap_werrors,
433 REDMEMB, &info->redmemb);
435 /* Clear the error bits, by writing them back */
436 pci_write_config_dword(pvt->branchmap_werrors,
439 info->ferr_nf_fbd = 0;
440 info->nerr_nf_fbd = 0;
448 * i5000_process_fatal_error_info(struct mem_ctl_info *mci,
449 * struct i5000_error_info *info,
450 * int handle_errors);
452 * handle the Intel FATAL errors, if any
454 static void i5000_process_fatal_error_info(struct mem_ctl_info *mci,
455 struct i5000_error_info *info,
458 char msg[EDAC_MC_LABEL_LEN + 1 + 160];
459 char *specific = NULL;
467 /* mask off the Error bits that are possible */
468 allErrors = (info->ferr_fat_fbd & FERR_FAT_MASK);
470 return; /* if no error, return now */
472 channel = EXTRACT_FBDCHAN_INDX(info->ferr_fat_fbd);
474 /* Use the NON-Recoverable macros to extract data */
475 bank = NREC_BANK(info->nrecmema);
476 rank = NREC_RANK(info->nrecmema);
477 rdwr = NREC_RDWR(info->nrecmema);
478 ras = NREC_RAS(info->nrecmemb);
479 cas = NREC_CAS(info->nrecmemb);
481 edac_dbg(0, "\t\tCSROW= %d Channel= %d (DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
483 rdwr ? "Write" : "Read", ras, cas);
485 /* Only 1 bit will be on */
488 specific = "Alert on non-redundant retry or fast "
492 specific = "Northbound CRC error on non-redundant "
500 * This error is generated to inform that the intelligent
501 * throttling is disabled and the temperature passed the
502 * specified middle point. Since this is something the BIOS
503 * should take care of, we'll warn only once to avoid
504 * worthlessly flooding the log.
510 specific = ">Tmid Thermal event with intelligent "
511 "throttling disabled";
516 /* Form out message */
517 snprintf(msg, sizeof(msg),
518 "Bank=%d RAS=%d CAS=%d FATAL Err=0x%x (%s)",
519 bank, ras, cas, allErrors, specific);
521 /* Call the helper to output message */
522 edac_mc_handle_error(HW_EVENT_ERR_FATAL, mci, 0, 0, 0,
523 channel >> 1, channel & 1, rank,
524 rdwr ? "Write error" : "Read error",
529 * i5000_process_fatal_error_info(struct mem_ctl_info *mci,
530 * struct i5000_error_info *info,
531 * int handle_errors);
533 * handle the Intel NON-FATAL errors, if any
535 static void i5000_process_nonfatal_error_info(struct mem_ctl_info *mci,
536 struct i5000_error_info *info,
539 char msg[EDAC_MC_LABEL_LEN + 1 + 170];
540 char *specific = NULL;
552 /* mask off the Error bits that are possible */
553 allErrors = (info->ferr_nf_fbd & FERR_NF_MASK);
555 return; /* if no error, return now */
557 /* ONLY ONE of the possible error bits will be set, as per the docs */
558 ue_errors = allErrors & FERR_NF_UNCORRECTABLE;
560 edac_dbg(0, "\tUncorrected bits= 0x%x\n", ue_errors);
562 branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd);
565 * According with i5000 datasheet, bit 28 has no significance
566 * for errors M4Err-M12Err and M17Err-M21Err, on FERR_NF_FBD
568 channel = branch & 2;
570 bank = NREC_BANK(info->nrecmema);
571 rank = NREC_RANK(info->nrecmema);
572 rdwr = NREC_RDWR(info->nrecmema);
573 ras = NREC_RAS(info->nrecmemb);
574 cas = NREC_CAS(info->nrecmemb);
576 edac_dbg(0, "\t\tCSROW= %d Channels= %d,%d (Branch= %d DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
577 rank, channel, channel + 1, branch >> 1, bank,
578 rdwr ? "Write" : "Read", ras, cas);
582 specific = "Non-Aliased Uncorrectable Patrol Data ECC";
585 specific = "Non-Aliased Uncorrectable Spare-Copy "
589 specific = "Non-Aliased Uncorrectable Mirrored Demand "
593 specific = "Non-Aliased Uncorrectable Non-Mirrored "
597 specific = "Aliased Uncorrectable Patrol Data ECC";
600 specific = "Aliased Uncorrectable Spare-Copy Data ECC";
603 specific = "Aliased Uncorrectable Mirrored Demand "
607 specific = "Aliased Uncorrectable Non-Mirrored Demand "
611 specific = "Uncorrectable Data ECC on Replay";
615 /* Form out message */
616 snprintf(msg, sizeof(msg),
617 "Rank=%d Bank=%d RAS=%d CAS=%d, UE Err=0x%x (%s)",
618 rank, bank, ras, cas, ue_errors, specific);
620 /* Call the helper to output message */
621 edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
622 channel >> 1, -1, rank,
623 rdwr ? "Write error" : "Read error",
627 /* Check correctable errors */
628 ce_errors = allErrors & FERR_NF_CORRECTABLE;
630 edac_dbg(0, "\tCorrected bits= 0x%x\n", ce_errors);
632 branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd);
635 if (REC_ECC_LOCATOR_ODD(info->redmemb))
638 /* Convert channel to be based from zero, instead of
639 * from branch base of 0 */
642 bank = REC_BANK(info->recmema);
643 rank = REC_RANK(info->recmema);
644 rdwr = REC_RDWR(info->recmema);
645 ras = REC_RAS(info->recmemb);
646 cas = REC_CAS(info->recmemb);
648 edac_dbg(0, "\t\tCSROW= %d Channel= %d (Branch %d DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n",
649 rank, channel, branch >> 1, bank,
650 rdwr ? "Write" : "Read", ras, cas);
654 specific = "Correctable Non-Mirrored Demand Data ECC";
657 specific = "Correctable Mirrored Demand Data ECC";
660 specific = "Correctable Spare-Copy Data ECC";
663 specific = "Correctable Patrol Data ECC";
667 /* Form out message */
668 snprintf(msg, sizeof(msg),
669 "Rank=%d Bank=%d RDWR=%s RAS=%d "
670 "CAS=%d, CE Err=0x%x (%s))", branch >> 1, bank,
671 rdwr ? "Write" : "Read", ras, cas, ce_errors,
674 /* Call the helper to output message */
675 edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
676 channel >> 1, channel % 2, rank,
677 rdwr ? "Write error" : "Read error",
684 misc_errors = allErrors & (FERR_NF_NON_RETRY | FERR_NF_NORTH_CRC |
685 FERR_NF_SPD_PROTOCOL | FERR_NF_DIMM_SPARE);
687 switch (misc_errors) {
689 specific = "Non-Retry or Redundant Retry FBD Memory "
690 "Alert or Redundant Fast Reset Timeout";
693 specific = "Non-Retry or Redundant Retry FBD "
694 "Configuration Alert";
697 specific = "Non-Retry or Redundant Retry FBD "
698 "Northbound CRC error on read data";
701 specific = "FBD Northbound CRC error on "
705 specific = "SPD protocol error";
708 specific = "DIMM-spare copy started";
711 specific = "DIMM-spare copy completed";
714 branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd);
716 /* Form out message */
717 snprintf(msg, sizeof(msg),
718 "Err=%#x (%s)", misc_errors, specific);
720 /* Call the helper to output message */
721 edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 0, 0, 0,
723 "Misc error", msg, NULL);
728 * i5000_process_error_info Process the error info that is
729 * in the 'info' structure, previously retrieved from hardware
731 static void i5000_process_error_info(struct mem_ctl_info *mci,
732 struct i5000_error_info *info,
735 /* First handle any fatal errors that occurred */
736 i5000_process_fatal_error_info(mci, info, handle_errors);
738 /* now handle any non-fatal errors that occurred */
739 i5000_process_nonfatal_error_info(mci, info, handle_errors);
743 * i5000_clear_error Retrieve any error from the hardware
744 * but do NOT process that error.
745 * Used for 'clearing' out of previous errors
746 * Called by the Core module.
748 static void i5000_clear_error(struct mem_ctl_info *mci)
750 struct i5000_error_info info;
752 i5000_get_error_info(mci, &info);
756 * i5000_check_error Retrieve and process errors reported by the
757 * hardware. Called by the Core module.
759 static void i5000_check_error(struct mem_ctl_info *mci)
761 struct i5000_error_info info;
762 edac_dbg(4, "MC%d\n", mci->mc_idx);
763 i5000_get_error_info(mci, &info);
764 i5000_process_error_info(mci, &info, 1);
768 * i5000_get_devices Find and perform 'get' operation on the MCH's
769 * device/functions we want to reference for this driver
771 * Need to 'get' device 16 func 1 and func 2
773 static int i5000_get_devices(struct mem_ctl_info *mci, int dev_idx)
775 //const struct i5000_dev_info *i5000_dev = &i5000_devs[dev_idx];
776 struct i5000_pvt *pvt;
777 struct pci_dev *pdev;
781 /* Attempt to 'get' the MCH register we want */
784 pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
785 PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev);
787 /* End of list, leave */
789 i5000_printk(KERN_ERR,
790 "'system address,Process Bus' "
792 "vendor 0x%x device 0x%x FUNC 1 "
795 PCI_DEVICE_ID_INTEL_I5000_DEV16);
800 /* Scan for device 16 func 1 */
801 if (PCI_FUNC(pdev->devfn) == 1)
805 pvt->branchmap_werrors = pdev;
807 /* Attempt to 'get' the MCH register we want */
810 pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
811 PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev);
814 i5000_printk(KERN_ERR,
815 "MC: 'branchmap,control,errors' "
817 "vendor 0x%x device 0x%x Func 2 "
820 PCI_DEVICE_ID_INTEL_I5000_DEV16);
822 pci_dev_put(pvt->branchmap_werrors);
826 /* Scan for device 16 func 1 */
827 if (PCI_FUNC(pdev->devfn) == 2)
831 pvt->fsb_error_regs = pdev;
833 edac_dbg(1, "System Address, processor bus- PCI Bus ID: %s %x:%x\n",
834 pci_name(pvt->system_address),
835 pvt->system_address->vendor, pvt->system_address->device);
836 edac_dbg(1, "Branchmap, control and errors - PCI Bus ID: %s %x:%x\n",
837 pci_name(pvt->branchmap_werrors),
838 pvt->branchmap_werrors->vendor,
839 pvt->branchmap_werrors->device);
840 edac_dbg(1, "FSB Error Regs - PCI Bus ID: %s %x:%x\n",
841 pci_name(pvt->fsb_error_regs),
842 pvt->fsb_error_regs->vendor, pvt->fsb_error_regs->device);
845 pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
846 PCI_DEVICE_ID_I5000_BRANCH_0, pdev);
849 i5000_printk(KERN_ERR,
850 "MC: 'BRANCH 0' device not found:"
851 "vendor 0x%x device 0x%x Func 0 (broken BIOS?)\n",
852 PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_I5000_BRANCH_0);
854 pci_dev_put(pvt->branchmap_werrors);
855 pci_dev_put(pvt->fsb_error_regs);
859 pvt->branch_0 = pdev;
861 /* If this device claims to have more than 2 channels then
862 * fetch Branch 1's information
864 if (pvt->maxch >= CHANNELS_PER_BRANCH) {
866 pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
867 PCI_DEVICE_ID_I5000_BRANCH_1, pdev);
870 i5000_printk(KERN_ERR,
871 "MC: 'BRANCH 1' device not found:"
872 "vendor 0x%x device 0x%x Func 0 "
875 PCI_DEVICE_ID_I5000_BRANCH_1);
877 pci_dev_put(pvt->branchmap_werrors);
878 pci_dev_put(pvt->fsb_error_regs);
879 pci_dev_put(pvt->branch_0);
883 pvt->branch_1 = pdev;
890 * i5000_put_devices 'put' all the devices that we have
893 static void i5000_put_devices(struct mem_ctl_info *mci)
895 struct i5000_pvt *pvt;
899 pci_dev_put(pvt->branchmap_werrors); /* FUNC 1 */
900 pci_dev_put(pvt->fsb_error_regs); /* FUNC 2 */
901 pci_dev_put(pvt->branch_0); /* DEV 21 */
903 /* Only if more than 2 channels do we release the second branch */
904 if (pvt->maxch >= CHANNELS_PER_BRANCH)
905 pci_dev_put(pvt->branch_1); /* DEV 22 */
909 * determine_amb_resent
911 * the information is contained in NUM_MTRS different registers
912 * determineing which of the NUM_MTRS requires knowing
913 * which channel is in question
915 * 2 branches, each with 2 channels
916 * b0_ambpresent0 for channel '0'
917 * b0_ambpresent1 for channel '1'
918 * b1_ambpresent0 for channel '2'
919 * b1_ambpresent1 for channel '3'
921 static int determine_amb_present_reg(struct i5000_pvt *pvt, int channel)
925 if (channel < CHANNELS_PER_BRANCH) {
927 amb_present = pvt->b0_ambpresent1;
929 amb_present = pvt->b0_ambpresent0;
932 amb_present = pvt->b1_ambpresent1;
934 amb_present = pvt->b1_ambpresent0;
941 * determine_mtr(pvt, csrow, channel)
943 * return the proper MTR register as determine by the csrow and channel desired
945 static int determine_mtr(struct i5000_pvt *pvt, int slot, int channel)
949 if (channel < CHANNELS_PER_BRANCH)
950 mtr = pvt->b0_mtr[slot];
952 mtr = pvt->b1_mtr[slot];
959 static void decode_mtr(int slot_row, u16 mtr)
963 ans = MTR_DIMMS_PRESENT(mtr);
965 edac_dbg(2, "\tMTR%d=0x%x: DIMMs are %sPresent\n",
966 slot_row, mtr, ans ? "" : "NOT ");
970 edac_dbg(2, "\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr));
971 edac_dbg(2, "\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr));
972 edac_dbg(2, "\t\tNUMRANK: %s\n",
973 MTR_DIMM_RANK(mtr) ? "double" : "single");
974 edac_dbg(2, "\t\tNUMROW: %s\n",
975 MTR_DIMM_ROWS(mtr) == 0 ? "8,192 - 13 rows" :
976 MTR_DIMM_ROWS(mtr) == 1 ? "16,384 - 14 rows" :
977 MTR_DIMM_ROWS(mtr) == 2 ? "32,768 - 15 rows" :
979 edac_dbg(2, "\t\tNUMCOL: %s\n",
980 MTR_DIMM_COLS(mtr) == 0 ? "1,024 - 10 columns" :
981 MTR_DIMM_COLS(mtr) == 1 ? "2,048 - 11 columns" :
982 MTR_DIMM_COLS(mtr) == 2 ? "4,096 - 12 columns" :
986 static void handle_channel(struct i5000_pvt *pvt, int slot, int channel,
987 struct i5000_dimm_info *dinfo)
993 mtr = determine_mtr(pvt, slot, channel);
994 if (MTR_DIMMS_PRESENT(mtr)) {
995 amb_present_reg = determine_amb_present_reg(pvt, channel);
997 /* Determine if there is a DIMM present in this DIMM slot */
998 if (amb_present_reg) {
999 dinfo->dual_rank = MTR_DIMM_RANK(mtr);
1001 /* Start with the number of bits for a Bank
1003 addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr);
1004 /* Add the number of ROW bits */
1005 addrBits += MTR_DIMM_ROWS_ADDR_BITS(mtr);
1006 /* add the number of COLUMN bits */
1007 addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
1009 addrBits += 6; /* add 64 bits per DIMM */
1010 addrBits -= 20; /* divide by 2^^20 */
1011 addrBits -= 3; /* 8 bits per bytes */
1013 dinfo->megabytes = 1 << addrBits;
1019 * calculate_dimm_size
1021 * also will output a DIMM matrix map, if debug is enabled, for viewing
1022 * how the DIMMs are populated
1024 static void calculate_dimm_size(struct i5000_pvt *pvt)
1026 struct i5000_dimm_info *dinfo;
1027 int slot, channel, branch;
1028 char *p, *mem_buffer;
1031 /* ================= Generate some debug output ================= */
1033 mem_buffer = p = kmalloc(space, GFP_KERNEL);
1035 i5000_printk(KERN_ERR, "MC: %s:%s() kmalloc() failed\n",
1036 __FILE__, __func__);
1040 /* Scan all the actual slots
1041 * and calculate the information for each DIMM
1042 * Start with the highest slot first, to display it first
1043 * and work toward the 0th slot
1045 for (slot = pvt->maxdimmperch - 1; slot >= 0; slot--) {
1047 /* on an odd slot, first output a 'boundary' marker,
1048 * then reset the message buffer */
1050 n = snprintf(p, space, "--------------------------"
1051 "--------------------------------");
1054 edac_dbg(2, "%s\n", mem_buffer);
1058 n = snprintf(p, space, "slot %2d ", slot);
1062 for (channel = 0; channel < pvt->maxch; channel++) {
1063 dinfo = &pvt->dimm_info[slot][channel];
1064 handle_channel(pvt, slot, channel, dinfo);
1065 if (dinfo->megabytes)
1066 n = snprintf(p, space, "%4d MB %dR| ",
1067 dinfo->megabytes, dinfo->dual_rank + 1);
1069 n = snprintf(p, space, "%4d MB | ", 0);
1075 edac_dbg(2, "%s\n", mem_buffer);
1080 /* Output the last bottom 'boundary' marker */
1081 n = snprintf(p, space, "--------------------------"
1082 "--------------------------------");
1085 edac_dbg(2, "%s\n", mem_buffer);
1089 /* now output the 'channel' labels */
1090 n = snprintf(p, space, " ");
1093 for (channel = 0; channel < pvt->maxch; channel++) {
1094 n = snprintf(p, space, "channel %d | ", channel);
1098 edac_dbg(2, "%s\n", mem_buffer);
1102 n = snprintf(p, space, " ");
1104 for (branch = 0; branch < MAX_BRANCHES; branch++) {
1105 n = snprintf(p, space, " branch %d | ", branch);
1110 /* output the last message and free buffer */
1111 edac_dbg(2, "%s\n", mem_buffer);
1116 * i5000_get_mc_regs read in the necessary registers and
1119 * Fills in the private data members
1121 static void i5000_get_mc_regs(struct mem_ctl_info *mci)
1123 struct i5000_pvt *pvt;
1131 pvt = mci->pvt_info;
1133 pci_read_config_dword(pvt->system_address, AMBASE,
1134 (u32 *) & pvt->ambase);
1135 pci_read_config_dword(pvt->system_address, AMBASE + sizeof(u32),
1136 ((u32 *) & pvt->ambase) + sizeof(u32));
1138 maxdimmperch = pvt->maxdimmperch;
1141 edac_dbg(2, "AMBASE= 0x%lx MAXCH= %d MAX-DIMM-Per-CH= %d\n",
1142 (long unsigned int)pvt->ambase, pvt->maxch, pvt->maxdimmperch);
1144 /* Get the Branch Map regs */
1145 pci_read_config_word(pvt->branchmap_werrors, TOLM, &pvt->tolm);
1147 edac_dbg(2, "TOLM (number of 256M regions) =%u (0x%x)\n",
1148 pvt->tolm, pvt->tolm);
1150 actual_tolm = pvt->tolm << 28;
1151 edac_dbg(2, "Actual TOLM byte addr=%u (0x%x)\n",
1152 actual_tolm, actual_tolm);
1154 pci_read_config_word(pvt->branchmap_werrors, MIR0, &pvt->mir0);
1155 pci_read_config_word(pvt->branchmap_werrors, MIR1, &pvt->mir1);
1156 pci_read_config_word(pvt->branchmap_werrors, MIR2, &pvt->mir2);
1158 /* Get the MIR[0-2] regs */
1159 limit = (pvt->mir0 >> 4) & 0x0FFF;
1160 way0 = pvt->mir0 & 0x1;
1161 way1 = pvt->mir0 & 0x2;
1162 edac_dbg(2, "MIR0: limit= 0x%x WAY1= %u WAY0= %x\n",
1164 limit = (pvt->mir1 >> 4) & 0x0FFF;
1165 way0 = pvt->mir1 & 0x1;
1166 way1 = pvt->mir1 & 0x2;
1167 edac_dbg(2, "MIR1: limit= 0x%x WAY1= %u WAY0= %x\n",
1169 limit = (pvt->mir2 >> 4) & 0x0FFF;
1170 way0 = pvt->mir2 & 0x1;
1171 way1 = pvt->mir2 & 0x2;
1172 edac_dbg(2, "MIR2: limit= 0x%x WAY1= %u WAY0= %x\n",
1175 /* Get the MTR[0-3] regs */
1176 for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) {
1177 int where = MTR0 + (slot_row * sizeof(u32));
1179 pci_read_config_word(pvt->branch_0, where,
1180 &pvt->b0_mtr[slot_row]);
1182 edac_dbg(2, "MTR%d where=0x%x B0 value=0x%x\n",
1183 slot_row, where, pvt->b0_mtr[slot_row]);
1185 if (pvt->maxch >= CHANNELS_PER_BRANCH) {
1186 pci_read_config_word(pvt->branch_1, where,
1187 &pvt->b1_mtr[slot_row]);
1188 edac_dbg(2, "MTR%d where=0x%x B1 value=0x%x\n",
1189 slot_row, where, pvt->b1_mtr[slot_row]);
1191 pvt->b1_mtr[slot_row] = 0;
1195 /* Read and dump branch 0's MTRs */
1196 edac_dbg(2, "Memory Technology Registers:\n");
1197 edac_dbg(2, " Branch 0:\n");
1198 for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) {
1199 decode_mtr(slot_row, pvt->b0_mtr[slot_row]);
1201 pci_read_config_word(pvt->branch_0, AMB_PRESENT_0,
1202 &pvt->b0_ambpresent0);
1203 edac_dbg(2, "\t\tAMB-Branch 0-present0 0x%x:\n", pvt->b0_ambpresent0);
1204 pci_read_config_word(pvt->branch_0, AMB_PRESENT_1,
1205 &pvt->b0_ambpresent1);
1206 edac_dbg(2, "\t\tAMB-Branch 0-present1 0x%x:\n", pvt->b0_ambpresent1);
1208 /* Only if we have 2 branchs (4 channels) */
1209 if (pvt->maxch < CHANNELS_PER_BRANCH) {
1210 pvt->b1_ambpresent0 = 0;
1211 pvt->b1_ambpresent1 = 0;
1213 /* Read and dump branch 1's MTRs */
1214 edac_dbg(2, " Branch 1:\n");
1215 for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) {
1216 decode_mtr(slot_row, pvt->b1_mtr[slot_row]);
1218 pci_read_config_word(pvt->branch_1, AMB_PRESENT_0,
1219 &pvt->b1_ambpresent0);
1220 edac_dbg(2, "\t\tAMB-Branch 1-present0 0x%x:\n",
1221 pvt->b1_ambpresent0);
1222 pci_read_config_word(pvt->branch_1, AMB_PRESENT_1,
1223 &pvt->b1_ambpresent1);
1224 edac_dbg(2, "\t\tAMB-Branch 1-present1 0x%x:\n",
1225 pvt->b1_ambpresent1);
1228 /* Go and determine the size of each DIMM and place in an
1230 calculate_dimm_size(pvt);
1234 * i5000_init_csrows Initialize the 'csrows' table within
1235 * the mci control structure with the
1236 * addressing of memory.
1240 * 1 no actual memory found on this MC
1242 static int i5000_init_csrows(struct mem_ctl_info *mci)
1244 struct i5000_pvt *pvt;
1245 struct dimm_info *dimm;
1246 int empty, channel_count;
1253 pvt = mci->pvt_info;
1255 channel_count = pvt->maxch;
1256 max_csrows = pvt->maxdimmperch * 2;
1258 empty = 1; /* Assume NO memory */
1261 * FIXME: The memory layout used to map slot/channel into the
1262 * real memory architecture is weird: branch+slot are "csrows"
1263 * and channel is channel. That required an extra array (dimm_info)
1264 * to map the dimms. A good cleanup would be to remove this array,
1265 * and do a loop here with branch, channel, slot
1267 for (slot = 0; slot < max_csrows; slot++) {
1268 for (channel = 0; channel < pvt->maxch; channel++) {
1270 mtr = determine_mtr(pvt, slot, channel);
1272 if (!MTR_DIMMS_PRESENT(mtr))
1275 dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers,
1276 channel / MAX_BRANCHES,
1277 channel % MAX_BRANCHES, slot);
1279 csrow_megs = pvt->dimm_info[slot][channel].megabytes;
1282 /* Assume DDR2 for now */
1283 dimm->mtype = MEM_FB_DDR2;
1285 /* ask what device type on this row */
1286 if (MTR_DRAM_WIDTH(mtr))
1287 dimm->dtype = DEV_X8;
1289 dimm->dtype = DEV_X4;
1291 dimm->edac_mode = EDAC_S8ECD8ED;
1292 dimm->nr_pages = csrow_megs << 8;
1302 * i5000_enable_error_reporting
1303 * Turn on the memory reporting features of the hardware
1305 static void i5000_enable_error_reporting(struct mem_ctl_info *mci)
1307 struct i5000_pvt *pvt;
1310 pvt = mci->pvt_info;
1312 /* Read the FBD Error Mask Register */
1313 pci_read_config_dword(pvt->branchmap_werrors, EMASK_FBD,
1316 /* Enable with a '0' */
1317 fbd_error_mask &= ~(ENABLE_EMASK_ALL);
1319 pci_write_config_dword(pvt->branchmap_werrors, EMASK_FBD,
1324 * i5000_get_dimm_and_channel_counts(pdev, &nr_csrows, &num_channels)
1326 * ask the device how many channels are present and how many CSROWS
1329 static void i5000_get_dimm_and_channel_counts(struct pci_dev *pdev,
1330 int *num_dimms_per_channel,
1335 /* Need to retrieve just how many channels and dimms per channel are
1336 * supported on this memory controller
1338 pci_read_config_byte(pdev, MAXDIMMPERCH, &value);
1339 *num_dimms_per_channel = (int)value;
1341 pci_read_config_byte(pdev, MAXCH, &value);
1342 *num_channels = (int)value;
1346 * i5000_probe1 Probe for ONE instance of device to see if it is
1349 * 0 for FOUND a device
1350 * < 0 for error code
1352 static int i5000_probe1(struct pci_dev *pdev, int dev_idx)
1354 struct mem_ctl_info *mci;
1355 struct edac_mc_layer layers[3];
1356 struct i5000_pvt *pvt;
1358 int num_dimms_per_channel;
1360 edac_dbg(0, "MC: pdev bus %u dev=0x%x fn=0x%x\n",
1362 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
1364 /* We only are looking for func 0 of the set */
1365 if (PCI_FUNC(pdev->devfn) != 0)
1368 /* Ask the devices for the number of CSROWS and CHANNELS so
1369 * that we can calculate the memory resources, etc
1371 * The Chipset will report what it can handle which will be greater
1372 * or equal to what the motherboard manufacturer will implement.
1374 * As we don't have a motherboard identification routine to determine
1375 * actual number of slots/dimms per channel, we thus utilize the
1376 * resource as specified by the chipset. Thus, we might have
1377 * have more DIMMs per channel than actually on the mobo, but this
1378 * allows the driver to support up to the chipset max, without
1379 * some fancy mobo determination.
1381 i5000_get_dimm_and_channel_counts(pdev, &num_dimms_per_channel,
1384 edac_dbg(0, "MC: Number of Branches=2 Channels= %d DIMMS= %d\n",
1385 num_channels, num_dimms_per_channel);
1387 /* allocate a new MC control structure */
1389 layers[0].type = EDAC_MC_LAYER_BRANCH;
1390 layers[0].size = MAX_BRANCHES;
1391 layers[0].is_virt_csrow = false;
1392 layers[1].type = EDAC_MC_LAYER_CHANNEL;
1393 layers[1].size = num_channels / MAX_BRANCHES;
1394 layers[1].is_virt_csrow = false;
1395 layers[2].type = EDAC_MC_LAYER_SLOT;
1396 layers[2].size = num_dimms_per_channel;
1397 layers[2].is_virt_csrow = true;
1398 mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
1402 edac_dbg(0, "MC: mci = %p\n", mci);
1404 mci->pdev = &pdev->dev; /* record ptr to the generic device */
1406 pvt = mci->pvt_info;
1407 pvt->system_address = pdev; /* Record this device in our private */
1408 pvt->maxch = num_channels;
1409 pvt->maxdimmperch = num_dimms_per_channel;
1411 /* 'get' the pci devices we want to reserve for our use */
1412 if (i5000_get_devices(mci, dev_idx))
1415 /* Time to get serious */
1416 i5000_get_mc_regs(mci); /* retrieve the hardware registers */
1419 mci->mtype_cap = MEM_FLAG_FB_DDR2;
1420 mci->edac_ctl_cap = EDAC_FLAG_NONE;
1421 mci->edac_cap = EDAC_FLAG_NONE;
1422 mci->mod_name = "i5000_edac.c";
1423 mci->mod_ver = I5000_REVISION;
1424 mci->ctl_name = i5000_devs[dev_idx].ctl_name;
1425 mci->dev_name = pci_name(pdev);
1426 mci->ctl_page_to_phys = NULL;
1428 /* Set the function pointer to an actual operation function */
1429 mci->edac_check = i5000_check_error;
1431 /* initialize the MC control structure 'csrows' table
1432 * with the mapping and control information */
1433 if (i5000_init_csrows(mci)) {
1434 edac_dbg(0, "MC: Setting mci->edac_cap to EDAC_FLAG_NONE because i5000_init_csrows() returned nonzero value\n");
1435 mci->edac_cap = EDAC_FLAG_NONE; /* no csrows found */
1437 edac_dbg(1, "MC: Enable error reporting now\n");
1438 i5000_enable_error_reporting(mci);
1441 /* add this new MC control structure to EDAC's list of MCs */
1442 if (edac_mc_add_mc(mci)) {
1443 edac_dbg(0, "MC: failed edac_mc_add_mc()\n");
1444 /* FIXME: perhaps some code should go here that disables error
1445 * reporting if we just enabled it
1450 i5000_clear_error(mci);
1452 /* allocating generic PCI control info */
1453 i5000_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR);
1456 "%s(): Unable to create PCI control\n",
1459 "%s(): PCI error report via EDAC not setup\n",
1465 /* Error exit unwinding stack */
1468 i5000_put_devices(mci);
1476 * i5000_init_one constructor for one instance of device
1482 static int __devinit i5000_init_one(struct pci_dev *pdev,
1483 const struct pci_device_id *id)
1487 edac_dbg(0, "MC:\n");
1489 /* wake up device */
1490 rc = pci_enable_device(pdev);
1494 /* now probe and enable the device */
1495 return i5000_probe1(pdev, id->driver_data);
1499 * i5000_remove_one destructor for one instance of device
1502 static void __devexit i5000_remove_one(struct pci_dev *pdev)
1504 struct mem_ctl_info *mci;
1509 edac_pci_release_generic_ctl(i5000_pci);
1511 if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
1514 /* retrieve references to resources, and free those resources */
1515 i5000_put_devices(mci);
1520 * pci_device_id table for which devices we are looking for
1522 * The "E500P" device is the first device supported.
1524 static DEFINE_PCI_DEVICE_TABLE(i5000_pci_tbl) = {
1525 {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I5000_DEV16),
1526 .driver_data = I5000P},
1528 {0,} /* 0 terminated list. */
1531 MODULE_DEVICE_TABLE(pci, i5000_pci_tbl);
1534 * i5000_driver pci_driver structure for this module
1537 static struct pci_driver i5000_driver = {
1538 .name = KBUILD_BASENAME,
1539 .probe = i5000_init_one,
1540 .remove = __devexit_p(i5000_remove_one),
1541 .id_table = i5000_pci_tbl,
1545 * i5000_init Module entry function
1546 * Try to initialize this module for its devices
1548 static int __init i5000_init(void)
1552 edac_dbg(2, "MC:\n");
1554 /* Ensure that the OPSTATE is set correctly for POLL or NMI */
1557 pci_rc = pci_register_driver(&i5000_driver);
1559 return (pci_rc < 0) ? pci_rc : 0;
1563 * i5000_exit() Module exit function
1564 * Unregister the driver
1566 static void __exit i5000_exit(void)
1568 edac_dbg(2, "MC:\n");
1569 pci_unregister_driver(&i5000_driver);
1572 module_init(i5000_init);
1573 module_exit(i5000_exit);
1575 MODULE_LICENSE("GPL");
1577 ("Linux Networx (http://lnxi.com) Doug Thompson <norsk5@xmission.com>");
1578 MODULE_DESCRIPTION("MC Driver for Intel I5000 memory controllers - "
1581 module_param(edac_op_state, int, 0444);
1582 MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");
1583 module_param(misc_messages, int, 0444);
1584 MODULE_PARM_DESC(misc_messages, "Log miscellaneous non fatal messages");