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[karo-tx-linux.git] / drivers / edac / ie31200_edac.c
1 /*
2  * Intel E3-1200
3  * Copyright (C) 2014 Jason Baron <jbaron@akamai.com>
4  *
5  * Support for the E3-1200 processor family. Heavily based on previous
6  * Intel EDAC drivers.
7  *
8  * Since the DRAM controller is on the cpu chip, we can use its PCI device
9  * id to identify these processors.
10  *
11  * PCI DRAM controller device ids (Taken from The PCI ID Repository - http://pci-ids.ucw.cz/)
12  *
13  * 0108: Xeon E3-1200 Processor Family DRAM Controller
14  * 010c: Xeon E3-1200/2nd Generation Core Processor Family DRAM Controller
15  * 0150: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller
16  * 0158: Xeon E3-1200 v2/Ivy Bridge DRAM Controller
17  * 015c: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller
18  * 0c04: Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
19  * 0c08: Xeon E3-1200 v3 Processor DRAM Controller
20  * 1918: Xeon E3-1200 v5 Skylake Host Bridge/DRAM Registers
21  * 5918: Xeon E3-1200 Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
22  *
23  * Based on Intel specification:
24  * http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xeon-e3-1200v3-vol-2-datasheet.pdf
25  * http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html
26  * http://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-h-processor-lines-datasheet-vol-2.html
27  *
28  * According to the above datasheet (p.16):
29  * "
30  * 6. Software must not access B0/D0/F0 32-bit memory-mapped registers with
31  * requests that cross a DW boundary.
32  * "
33  *
34  * Thus, we make use of the explicit: lo_hi_readq(), which breaks the readq into
35  * 2 readl() calls. This restriction may be lifted in subsequent chip releases,
36  * but lo_hi_readq() ensures that we are safe across all e3-1200 processors.
37  */
38
39 #include <linux/module.h>
40 #include <linux/init.h>
41 #include <linux/pci.h>
42 #include <linux/pci_ids.h>
43 #include <linux/edac.h>
44
45 #include <linux/io-64-nonatomic-lo-hi.h>
46 #include "edac_module.h"
47
48 #define IE31200_REVISION "1.0"
49 #define EDAC_MOD_STR "ie31200_edac"
50
51 #define ie31200_printk(level, fmt, arg...) \
52         edac_printk(level, "ie31200", fmt, ##arg)
53
54 #define PCI_DEVICE_ID_INTEL_IE31200_HB_1 0x0108
55 #define PCI_DEVICE_ID_INTEL_IE31200_HB_2 0x010c
56 #define PCI_DEVICE_ID_INTEL_IE31200_HB_3 0x0150
57 #define PCI_DEVICE_ID_INTEL_IE31200_HB_4 0x0158
58 #define PCI_DEVICE_ID_INTEL_IE31200_HB_5 0x015c
59 #define PCI_DEVICE_ID_INTEL_IE31200_HB_6 0x0c04
60 #define PCI_DEVICE_ID_INTEL_IE31200_HB_7 0x0c08
61 #define PCI_DEVICE_ID_INTEL_IE31200_HB_8 0x1918
62 #define PCI_DEVICE_ID_INTEL_IE31200_HB_9 0x5918
63
64 #define IE31200_DIMMS                   4
65 #define IE31200_RANKS                   8
66 #define IE31200_RANKS_PER_CHANNEL       4
67 #define IE31200_DIMMS_PER_CHANNEL       2
68 #define IE31200_CHANNELS                2
69
70 /* Intel IE31200 register addresses - device 0 function 0 - DRAM Controller */
71 #define IE31200_MCHBAR_LOW              0x48
72 #define IE31200_MCHBAR_HIGH             0x4c
73 #define IE31200_MCHBAR_MASK             GENMASK_ULL(38, 15)
74 #define IE31200_MMR_WINDOW_SIZE         BIT(15)
75
76 /*
77  * Error Status Register (16b)
78  *
79  * 15    reserved
80  * 14    Isochronous TBWRR Run Behind FIFO Full
81  *       (ITCV)
82  * 13    Isochronous TBWRR Run Behind FIFO Put
83  *       (ITSTV)
84  * 12    reserved
85  * 11    MCH Thermal Sensor Event
86  *       for SMI/SCI/SERR (GTSE)
87  * 10    reserved
88  *  9    LOCK to non-DRAM Memory Flag (LCKF)
89  *  8    reserved
90  *  7    DRAM Throttle Flag (DTF)
91  *  6:2  reserved
92  *  1    Multi-bit DRAM ECC Error Flag (DMERR)
93  *  0    Single-bit DRAM ECC Error Flag (DSERR)
94  */
95 #define IE31200_ERRSTS                  0xc8
96 #define IE31200_ERRSTS_UE               BIT(1)
97 #define IE31200_ERRSTS_CE               BIT(0)
98 #define IE31200_ERRSTS_BITS             (IE31200_ERRSTS_UE | IE31200_ERRSTS_CE)
99
100 /*
101  * Channel 0 ECC Error Log (64b)
102  *
103  * 63:48 Error Column Address (ERRCOL)
104  * 47:32 Error Row Address (ERRROW)
105  * 31:29 Error Bank Address (ERRBANK)
106  * 28:27 Error Rank Address (ERRRANK)
107  * 26:24 reserved
108  * 23:16 Error Syndrome (ERRSYND)
109  * 15: 2 reserved
110  *    1  Multiple Bit Error Status (MERRSTS)
111  *    0  Correctable Error Status (CERRSTS)
112  */
113
114 #define IE31200_C0ECCERRLOG                     0x40c8
115 #define IE31200_C1ECCERRLOG                     0x44c8
116 #define IE31200_C0ECCERRLOG_SKL                 0x4048
117 #define IE31200_C1ECCERRLOG_SKL                 0x4448
118 #define IE31200_ECCERRLOG_CE                    BIT(0)
119 #define IE31200_ECCERRLOG_UE                    BIT(1)
120 #define IE31200_ECCERRLOG_RANK_BITS             GENMASK_ULL(28, 27)
121 #define IE31200_ECCERRLOG_RANK_SHIFT            27
122 #define IE31200_ECCERRLOG_SYNDROME_BITS         GENMASK_ULL(23, 16)
123 #define IE31200_ECCERRLOG_SYNDROME_SHIFT        16
124
125 #define IE31200_ECCERRLOG_SYNDROME(log)            \
126         ((log & IE31200_ECCERRLOG_SYNDROME_BITS) >> \
127          IE31200_ECCERRLOG_SYNDROME_SHIFT)
128
129 #define IE31200_CAPID0                  0xe4
130 #define IE31200_CAPID0_PDCD             BIT(4)
131 #define IE31200_CAPID0_DDPCD            BIT(6)
132 #define IE31200_CAPID0_ECC              BIT(1)
133
134 #define IE31200_MAD_DIMM_0_OFFSET               0x5004
135 #define IE31200_MAD_DIMM_0_OFFSET_SKL           0x500C
136 #define IE31200_MAD_DIMM_SIZE                   GENMASK_ULL(7, 0)
137 #define IE31200_MAD_DIMM_A_RANK                 BIT(17)
138 #define IE31200_MAD_DIMM_A_RANK_SHIFT           17
139 #define IE31200_MAD_DIMM_A_RANK_SKL             BIT(10)
140 #define IE31200_MAD_DIMM_A_RANK_SKL_SHIFT       10
141 #define IE31200_MAD_DIMM_A_WIDTH                BIT(19)
142 #define IE31200_MAD_DIMM_A_WIDTH_SHIFT          19
143 #define IE31200_MAD_DIMM_A_WIDTH_SKL            GENMASK_ULL(9, 8)
144 #define IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT      8
145
146 /* Skylake reports 1GB increments, everything else is 256MB */
147 #define IE31200_PAGES(n, skl)   \
148         (n << (28 + (2 * skl) - PAGE_SHIFT))
149
150 static int nr_channels;
151
152 struct ie31200_priv {
153         void __iomem *window;
154         void __iomem *c0errlog;
155         void __iomem *c1errlog;
156 };
157
158 enum ie31200_chips {
159         IE31200 = 0,
160 };
161
162 struct ie31200_dev_info {
163         const char *ctl_name;
164 };
165
166 struct ie31200_error_info {
167         u16 errsts;
168         u16 errsts2;
169         u64 eccerrlog[IE31200_CHANNELS];
170 };
171
172 static const struct ie31200_dev_info ie31200_devs[] = {
173         [IE31200] = {
174                 .ctl_name = "IE31200"
175         },
176 };
177
178 struct dimm_data {
179         u8 size; /* in multiples of 256MB, except Skylake is 1GB */
180         u8 dual_rank : 1,
181            x16_width : 2; /* 0 means x8 width */
182 };
183
184 static int how_many_channels(struct pci_dev *pdev)
185 {
186         int n_channels;
187         unsigned char capid0_2b; /* 2nd byte of CAPID0 */
188
189         pci_read_config_byte(pdev, IE31200_CAPID0 + 1, &capid0_2b);
190
191         /* check PDCD: Dual Channel Disable */
192         if (capid0_2b & IE31200_CAPID0_PDCD) {
193                 edac_dbg(0, "In single channel mode\n");
194                 n_channels = 1;
195         } else {
196                 edac_dbg(0, "In dual channel mode\n");
197                 n_channels = 2;
198         }
199
200         /* check DDPCD - check if both channels are filled */
201         if (capid0_2b & IE31200_CAPID0_DDPCD)
202                 edac_dbg(0, "2 DIMMS per channel disabled\n");
203         else
204                 edac_dbg(0, "2 DIMMS per channel enabled\n");
205
206         return n_channels;
207 }
208
209 static bool ecc_capable(struct pci_dev *pdev)
210 {
211         unsigned char capid0_4b; /* 4th byte of CAPID0 */
212
213         pci_read_config_byte(pdev, IE31200_CAPID0 + 3, &capid0_4b);
214         if (capid0_4b & IE31200_CAPID0_ECC)
215                 return false;
216         return true;
217 }
218
219 static int eccerrlog_row(u64 log)
220 {
221         return ((log & IE31200_ECCERRLOG_RANK_BITS) >>
222                                 IE31200_ECCERRLOG_RANK_SHIFT);
223 }
224
225 static void ie31200_clear_error_info(struct mem_ctl_info *mci)
226 {
227         /*
228          * Clear any error bits.
229          * (Yes, we really clear bits by writing 1 to them.)
230          */
231         pci_write_bits16(to_pci_dev(mci->pdev), IE31200_ERRSTS,
232                          IE31200_ERRSTS_BITS, IE31200_ERRSTS_BITS);
233 }
234
235 static void ie31200_get_and_clear_error_info(struct mem_ctl_info *mci,
236                                              struct ie31200_error_info *info)
237 {
238         struct pci_dev *pdev;
239         struct ie31200_priv *priv = mci->pvt_info;
240
241         pdev = to_pci_dev(mci->pdev);
242
243         /*
244          * This is a mess because there is no atomic way to read all the
245          * registers at once and the registers can transition from CE being
246          * overwritten by UE.
247          */
248         pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts);
249         if (!(info->errsts & IE31200_ERRSTS_BITS))
250                 return;
251
252         info->eccerrlog[0] = lo_hi_readq(priv->c0errlog);
253         if (nr_channels == 2)
254                 info->eccerrlog[1] = lo_hi_readq(priv->c1errlog);
255
256         pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts2);
257
258         /*
259          * If the error is the same for both reads then the first set
260          * of reads is valid.  If there is a change then there is a CE
261          * with no info and the second set of reads is valid and
262          * should be UE info.
263          */
264         if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) {
265                 info->eccerrlog[0] = lo_hi_readq(priv->c0errlog);
266                 if (nr_channels == 2)
267                         info->eccerrlog[1] =
268                                 lo_hi_readq(priv->c1errlog);
269         }
270
271         ie31200_clear_error_info(mci);
272 }
273
274 static void ie31200_process_error_info(struct mem_ctl_info *mci,
275                                        struct ie31200_error_info *info)
276 {
277         int channel;
278         u64 log;
279
280         if (!(info->errsts & IE31200_ERRSTS_BITS))
281                 return;
282
283         if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) {
284                 edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0,
285                                      -1, -1, -1, "UE overwrote CE", "");
286                 info->errsts = info->errsts2;
287         }
288
289         for (channel = 0; channel < nr_channels; channel++) {
290                 log = info->eccerrlog[channel];
291                 if (log & IE31200_ECCERRLOG_UE) {
292                         edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
293                                              0, 0, 0,
294                                              eccerrlog_row(log),
295                                              channel, -1,
296                                              "ie31200 UE", "");
297                 } else if (log & IE31200_ECCERRLOG_CE) {
298                         edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
299                                              0, 0,
300                                              IE31200_ECCERRLOG_SYNDROME(log),
301                                              eccerrlog_row(log),
302                                              channel, -1,
303                                              "ie31200 CE", "");
304                 }
305         }
306 }
307
308 static void ie31200_check(struct mem_ctl_info *mci)
309 {
310         struct ie31200_error_info info;
311
312         edac_dbg(1, "MC%d\n", mci->mc_idx);
313         ie31200_get_and_clear_error_info(mci, &info);
314         ie31200_process_error_info(mci, &info);
315 }
316
317 static void __iomem *ie31200_map_mchbar(struct pci_dev *pdev)
318 {
319         union {
320                 u64 mchbar;
321                 struct {
322                         u32 mchbar_low;
323                         u32 mchbar_high;
324                 };
325         } u;
326         void __iomem *window;
327
328         pci_read_config_dword(pdev, IE31200_MCHBAR_LOW, &u.mchbar_low);
329         pci_read_config_dword(pdev, IE31200_MCHBAR_HIGH, &u.mchbar_high);
330         u.mchbar &= IE31200_MCHBAR_MASK;
331
332         if (u.mchbar != (resource_size_t)u.mchbar) {
333                 ie31200_printk(KERN_ERR, "mmio space beyond accessible range (0x%llx)\n",
334                                (unsigned long long)u.mchbar);
335                 return NULL;
336         }
337
338         window = ioremap_nocache(u.mchbar, IE31200_MMR_WINDOW_SIZE);
339         if (!window)
340                 ie31200_printk(KERN_ERR, "Cannot map mmio space at 0x%llx\n",
341                                (unsigned long long)u.mchbar);
342
343         return window;
344 }
345
346 static void __skl_populate_dimm_info(struct dimm_data *dd, u32 addr_decode,
347                                      int chan)
348 {
349         dd->size = (addr_decode >> (chan << 4)) & IE31200_MAD_DIMM_SIZE;
350         dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK_SKL << (chan << 4))) ? 1 : 0;
351         dd->x16_width = ((addr_decode & (IE31200_MAD_DIMM_A_WIDTH_SKL << (chan << 4))) >>
352                                 (IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT + (chan << 4)));
353 }
354
355 static void __populate_dimm_info(struct dimm_data *dd, u32 addr_decode,
356                                  int chan)
357 {
358         dd->size = (addr_decode >> (chan << 3)) & IE31200_MAD_DIMM_SIZE;
359         dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK << chan)) ? 1 : 0;
360         dd->x16_width = (addr_decode & (IE31200_MAD_DIMM_A_WIDTH << chan)) ? 1 : 0;
361 }
362
363 static void populate_dimm_info(struct dimm_data *dd, u32 addr_decode, int chan,
364                                bool skl)
365 {
366         if (skl)
367                 __skl_populate_dimm_info(dd, addr_decode, chan);
368         else
369                 __populate_dimm_info(dd, addr_decode, chan);
370 }
371
372
373 static int ie31200_probe1(struct pci_dev *pdev, int dev_idx)
374 {
375         int i, j, ret;
376         struct mem_ctl_info *mci = NULL;
377         struct edac_mc_layer layers[2];
378         struct dimm_data dimm_info[IE31200_CHANNELS][IE31200_DIMMS_PER_CHANNEL];
379         void __iomem *window;
380         struct ie31200_priv *priv;
381         u32 addr_decode, mad_offset;
382
383         /*
384          * Kaby Lake seems to work like Skylake. Please re-visit this logic
385          * when adding new CPU support.
386          */
387         bool skl = (pdev->device >= PCI_DEVICE_ID_INTEL_IE31200_HB_8);
388
389         edac_dbg(0, "MC:\n");
390
391         if (!ecc_capable(pdev)) {
392                 ie31200_printk(KERN_INFO, "No ECC support\n");
393                 return -ENODEV;
394         }
395
396         nr_channels = how_many_channels(pdev);
397         layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
398         layers[0].size = IE31200_DIMMS;
399         layers[0].is_virt_csrow = true;
400         layers[1].type = EDAC_MC_LAYER_CHANNEL;
401         layers[1].size = nr_channels;
402         layers[1].is_virt_csrow = false;
403         mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers,
404                             sizeof(struct ie31200_priv));
405         if (!mci)
406                 return -ENOMEM;
407
408         window = ie31200_map_mchbar(pdev);
409         if (!window) {
410                 ret = -ENODEV;
411                 goto fail_free;
412         }
413
414         edac_dbg(3, "MC: init mci\n");
415         mci->pdev = &pdev->dev;
416         if (skl)
417                 mci->mtype_cap = MEM_FLAG_DDR4;
418         else
419                 mci->mtype_cap = MEM_FLAG_DDR3;
420         mci->edac_ctl_cap = EDAC_FLAG_SECDED;
421         mci->edac_cap = EDAC_FLAG_SECDED;
422         mci->mod_name = EDAC_MOD_STR;
423         mci->mod_ver = IE31200_REVISION;
424         mci->ctl_name = ie31200_devs[dev_idx].ctl_name;
425         mci->dev_name = pci_name(pdev);
426         mci->edac_check = ie31200_check;
427         mci->ctl_page_to_phys = NULL;
428         priv = mci->pvt_info;
429         priv->window = window;
430         if (skl) {
431                 priv->c0errlog = window + IE31200_C0ECCERRLOG_SKL;
432                 priv->c1errlog = window + IE31200_C1ECCERRLOG_SKL;
433                 mad_offset = IE31200_MAD_DIMM_0_OFFSET_SKL;
434         } else {
435                 priv->c0errlog = window + IE31200_C0ECCERRLOG;
436                 priv->c1errlog = window + IE31200_C1ECCERRLOG;
437                 mad_offset = IE31200_MAD_DIMM_0_OFFSET;
438         }
439
440         /* populate DIMM info */
441         for (i = 0; i < IE31200_CHANNELS; i++) {
442                 addr_decode = readl(window + mad_offset +
443                                         (i * 4));
444                 edac_dbg(0, "addr_decode: 0x%x\n", addr_decode);
445                 for (j = 0; j < IE31200_DIMMS_PER_CHANNEL; j++) {
446                         populate_dimm_info(&dimm_info[i][j], addr_decode, j,
447                                            skl);
448                         edac_dbg(0, "size: 0x%x, rank: %d, width: %d\n",
449                                  dimm_info[i][j].size,
450                                  dimm_info[i][j].dual_rank,
451                                  dimm_info[i][j].x16_width);
452                 }
453         }
454
455         /*
456          * The dram rank boundary (DRB) reg values are boundary addresses
457          * for each DRAM rank with a granularity of 64MB.  DRB regs are
458          * cumulative; the last one will contain the total memory
459          * contained in all ranks.
460          */
461         for (i = 0; i < IE31200_DIMMS_PER_CHANNEL; i++) {
462                 for (j = 0; j < IE31200_CHANNELS; j++) {
463                         struct dimm_info *dimm;
464                         unsigned long nr_pages;
465
466                         nr_pages = IE31200_PAGES(dimm_info[j][i].size, skl);
467                         if (nr_pages == 0)
468                                 continue;
469
470                         if (dimm_info[j][i].dual_rank) {
471                                 nr_pages = nr_pages / 2;
472                                 dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
473                                                      mci->n_layers, (i * 2) + 1,
474                                                      j, 0);
475                                 dimm->nr_pages = nr_pages;
476                                 edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages);
477                                 dimm->grain = 8; /* just a guess */
478                                 if (skl)
479                                         dimm->mtype = MEM_DDR4;
480                                 else
481                                         dimm->mtype = MEM_DDR3;
482                                 dimm->dtype = DEV_UNKNOWN;
483                                 dimm->edac_mode = EDAC_UNKNOWN;
484                         }
485                         dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
486                                              mci->n_layers, i * 2, j, 0);
487                         dimm->nr_pages = nr_pages;
488                         edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages);
489                         dimm->grain = 8; /* same guess */
490                         if (skl)
491                                 dimm->mtype = MEM_DDR4;
492                         else
493                                 dimm->mtype = MEM_DDR3;
494                         dimm->dtype = DEV_UNKNOWN;
495                         dimm->edac_mode = EDAC_UNKNOWN;
496                 }
497         }
498
499         ie31200_clear_error_info(mci);
500
501         if (edac_mc_add_mc(mci)) {
502                 edac_dbg(3, "MC: failed edac_mc_add_mc()\n");
503                 ret = -ENODEV;
504                 goto fail_unmap;
505         }
506
507         /* get this far and it's successful */
508         edac_dbg(3, "MC: success\n");
509         return 0;
510
511 fail_unmap:
512         iounmap(window);
513
514 fail_free:
515         edac_mc_free(mci);
516
517         return ret;
518 }
519
520 static int ie31200_init_one(struct pci_dev *pdev,
521                             const struct pci_device_id *ent)
522 {
523         edac_dbg(0, "MC:\n");
524
525         if (pci_enable_device(pdev) < 0)
526                 return -EIO;
527
528         return ie31200_probe1(pdev, ent->driver_data);
529 }
530
531 static void ie31200_remove_one(struct pci_dev *pdev)
532 {
533         struct mem_ctl_info *mci;
534         struct ie31200_priv *priv;
535
536         edac_dbg(0, "\n");
537         mci = edac_mc_del_mc(&pdev->dev);
538         if (!mci)
539                 return;
540         priv = mci->pvt_info;
541         iounmap(priv->window);
542         edac_mc_free(mci);
543 }
544
545 static const struct pci_device_id ie31200_pci_tbl[] = {
546         {
547                 PCI_VEND_DEV(INTEL, IE31200_HB_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
548                 IE31200},
549         {
550                 PCI_VEND_DEV(INTEL, IE31200_HB_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
551                 IE31200},
552         {
553                 PCI_VEND_DEV(INTEL, IE31200_HB_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
554                 IE31200},
555         {
556                 PCI_VEND_DEV(INTEL, IE31200_HB_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
557                 IE31200},
558         {
559                 PCI_VEND_DEV(INTEL, IE31200_HB_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
560                 IE31200},
561         {
562                 PCI_VEND_DEV(INTEL, IE31200_HB_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
563                 IE31200},
564         {
565                 PCI_VEND_DEV(INTEL, IE31200_HB_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
566                 IE31200},
567         {
568                 PCI_VEND_DEV(INTEL, IE31200_HB_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
569                 IE31200},
570         {
571                 PCI_VEND_DEV(INTEL, IE31200_HB_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
572                 IE31200},
573         {
574                 0,
575         }            /* 0 terminated list. */
576 };
577 MODULE_DEVICE_TABLE(pci, ie31200_pci_tbl);
578
579 static struct pci_driver ie31200_driver = {
580         .name = EDAC_MOD_STR,
581         .probe = ie31200_init_one,
582         .remove = ie31200_remove_one,
583         .id_table = ie31200_pci_tbl,
584 };
585
586 static int __init ie31200_init(void)
587 {
588         edac_dbg(3, "MC:\n");
589         /* Ensure that the OPSTATE is set correctly for POLL or NMI */
590         opstate_init();
591
592         return pci_register_driver(&ie31200_driver);
593 }
594
595 static void __exit ie31200_exit(void)
596 {
597         edac_dbg(3, "MC:\n");
598         pci_unregister_driver(&ie31200_driver);
599 }
600
601 module_init(ie31200_init);
602 module_exit(ie31200_exit);
603
604 MODULE_LICENSE("GPL");
605 MODULE_AUTHOR("Jason Baron <jbaron@akamai.com>");
606 MODULE_DESCRIPTION("MC support for Intel Processor E31200 memory hub controllers");