Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[cascardo/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  *
22  * Based on Intel specification:
23  * http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xeon-e3-1200v3-vol-2-datasheet.pdf
24  * http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html
25  *
26  * According to the above datasheet (p.16):
27  * "
28  * 6. Software must not access B0/D0/F0 32-bit memory-mapped registers with
29  * requests that cross a DW boundary.
30  * "
31  *
32  * Thus, we make use of the explicit: lo_hi_readq(), which breaks the readq into
33  * 2 readl() calls. This restriction may be lifted in subsequent chip releases,
34  * but lo_hi_readq() ensures that we are safe across all e3-1200 processors.
35  */
36
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/pci_ids.h>
41 #include <linux/edac.h>
42
43 #include <linux/io-64-nonatomic-lo-hi.h>
44 #include "edac_core.h"
45
46 #define IE31200_REVISION "1.0"
47 #define EDAC_MOD_STR "ie31200_edac"
48
49 #define ie31200_printk(level, fmt, arg...) \
50         edac_printk(level, "ie31200", fmt, ##arg)
51
52 #define PCI_DEVICE_ID_INTEL_IE31200_HB_1 0x0108
53 #define PCI_DEVICE_ID_INTEL_IE31200_HB_2 0x010c
54 #define PCI_DEVICE_ID_INTEL_IE31200_HB_3 0x0150
55 #define PCI_DEVICE_ID_INTEL_IE31200_HB_4 0x0158
56 #define PCI_DEVICE_ID_INTEL_IE31200_HB_5 0x015c
57 #define PCI_DEVICE_ID_INTEL_IE31200_HB_6 0x0c04
58 #define PCI_DEVICE_ID_INTEL_IE31200_HB_7 0x0c08
59 #define PCI_DEVICE_ID_INTEL_IE31200_HB_8 0x1918
60
61 #define IE31200_DIMMS                   4
62 #define IE31200_RANKS                   8
63 #define IE31200_RANKS_PER_CHANNEL       4
64 #define IE31200_DIMMS_PER_CHANNEL       2
65 #define IE31200_CHANNELS                2
66
67 /* Intel IE31200 register addresses - device 0 function 0 - DRAM Controller */
68 #define IE31200_MCHBAR_LOW              0x48
69 #define IE31200_MCHBAR_HIGH             0x4c
70 #define IE31200_MCHBAR_MASK             GENMASK_ULL(38, 15)
71 #define IE31200_MMR_WINDOW_SIZE         BIT(15)
72
73 /*
74  * Error Status Register (16b)
75  *
76  * 15    reserved
77  * 14    Isochronous TBWRR Run Behind FIFO Full
78  *       (ITCV)
79  * 13    Isochronous TBWRR Run Behind FIFO Put
80  *       (ITSTV)
81  * 12    reserved
82  * 11    MCH Thermal Sensor Event
83  *       for SMI/SCI/SERR (GTSE)
84  * 10    reserved
85  *  9    LOCK to non-DRAM Memory Flag (LCKF)
86  *  8    reserved
87  *  7    DRAM Throttle Flag (DTF)
88  *  6:2  reserved
89  *  1    Multi-bit DRAM ECC Error Flag (DMERR)
90  *  0    Single-bit DRAM ECC Error Flag (DSERR)
91  */
92 #define IE31200_ERRSTS                  0xc8
93 #define IE31200_ERRSTS_UE               BIT(1)
94 #define IE31200_ERRSTS_CE               BIT(0)
95 #define IE31200_ERRSTS_BITS             (IE31200_ERRSTS_UE | IE31200_ERRSTS_CE)
96
97 /*
98  * Channel 0 ECC Error Log (64b)
99  *
100  * 63:48 Error Column Address (ERRCOL)
101  * 47:32 Error Row Address (ERRROW)
102  * 31:29 Error Bank Address (ERRBANK)
103  * 28:27 Error Rank Address (ERRRANK)
104  * 26:24 reserved
105  * 23:16 Error Syndrome (ERRSYND)
106  * 15: 2 reserved
107  *    1  Multiple Bit Error Status (MERRSTS)
108  *    0  Correctable Error Status (CERRSTS)
109  */
110
111 #define IE31200_C0ECCERRLOG                     0x40c8
112 #define IE31200_C1ECCERRLOG                     0x44c8
113 #define IE31200_C0ECCERRLOG_SKL                 0x4048
114 #define IE31200_C1ECCERRLOG_SKL                 0x4448
115 #define IE31200_ECCERRLOG_CE                    BIT(0)
116 #define IE31200_ECCERRLOG_UE                    BIT(1)
117 #define IE31200_ECCERRLOG_RANK_BITS             GENMASK_ULL(28, 27)
118 #define IE31200_ECCERRLOG_RANK_SHIFT            27
119 #define IE31200_ECCERRLOG_SYNDROME_BITS         GENMASK_ULL(23, 16)
120 #define IE31200_ECCERRLOG_SYNDROME_SHIFT        16
121
122 #define IE31200_ECCERRLOG_SYNDROME(log)            \
123         ((log & IE31200_ECCERRLOG_SYNDROME_BITS) >> \
124          IE31200_ECCERRLOG_SYNDROME_SHIFT)
125
126 #define IE31200_CAPID0                  0xe4
127 #define IE31200_CAPID0_PDCD             BIT(4)
128 #define IE31200_CAPID0_DDPCD            BIT(6)
129 #define IE31200_CAPID0_ECC              BIT(1)
130
131 #define IE31200_MAD_DIMM_0_OFFSET               0x5004
132 #define IE31200_MAD_DIMM_0_OFFSET_SKL           0x500C
133 #define IE31200_MAD_DIMM_SIZE                   GENMASK_ULL(7, 0)
134 #define IE31200_MAD_DIMM_A_RANK                 BIT(17)
135 #define IE31200_MAD_DIMM_A_RANK_SHIFT           17
136 #define IE31200_MAD_DIMM_A_RANK_SKL             BIT(10)
137 #define IE31200_MAD_DIMM_A_RANK_SKL_SHIFT       10
138 #define IE31200_MAD_DIMM_A_WIDTH                BIT(19)
139 #define IE31200_MAD_DIMM_A_WIDTH_SHIFT          19
140 #define IE31200_MAD_DIMM_A_WIDTH_SKL            GENMASK_ULL(9, 8)
141 #define IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT      8
142
143 /* Skylake reports 1GB increments, everything else is 256MB */
144 #define IE31200_PAGES(n, skl)   \
145         (n << (28 + (2 * skl) - PAGE_SHIFT))
146
147 static int nr_channels;
148
149 struct ie31200_priv {
150         void __iomem *window;
151         void __iomem *c0errlog;
152         void __iomem *c1errlog;
153 };
154
155 enum ie31200_chips {
156         IE31200 = 0,
157 };
158
159 struct ie31200_dev_info {
160         const char *ctl_name;
161 };
162
163 struct ie31200_error_info {
164         u16 errsts;
165         u16 errsts2;
166         u64 eccerrlog[IE31200_CHANNELS];
167 };
168
169 static const struct ie31200_dev_info ie31200_devs[] = {
170         [IE31200] = {
171                 .ctl_name = "IE31200"
172         },
173 };
174
175 struct dimm_data {
176         u8 size; /* in multiples of 256MB, except Skylake is 1GB */
177         u8 dual_rank : 1,
178            x16_width : 2; /* 0 means x8 width */
179 };
180
181 static int how_many_channels(struct pci_dev *pdev)
182 {
183         int n_channels;
184         unsigned char capid0_2b; /* 2nd byte of CAPID0 */
185
186         pci_read_config_byte(pdev, IE31200_CAPID0 + 1, &capid0_2b);
187
188         /* check PDCD: Dual Channel Disable */
189         if (capid0_2b & IE31200_CAPID0_PDCD) {
190                 edac_dbg(0, "In single channel mode\n");
191                 n_channels = 1;
192         } else {
193                 edac_dbg(0, "In dual channel mode\n");
194                 n_channels = 2;
195         }
196
197         /* check DDPCD - check if both channels are filled */
198         if (capid0_2b & IE31200_CAPID0_DDPCD)
199                 edac_dbg(0, "2 DIMMS per channel disabled\n");
200         else
201                 edac_dbg(0, "2 DIMMS per channel enabled\n");
202
203         return n_channels;
204 }
205
206 static bool ecc_capable(struct pci_dev *pdev)
207 {
208         unsigned char capid0_4b; /* 4th byte of CAPID0 */
209
210         pci_read_config_byte(pdev, IE31200_CAPID0 + 3, &capid0_4b);
211         if (capid0_4b & IE31200_CAPID0_ECC)
212                 return false;
213         return true;
214 }
215
216 static int eccerrlog_row(u64 log)
217 {
218         return ((log & IE31200_ECCERRLOG_RANK_BITS) >>
219                                 IE31200_ECCERRLOG_RANK_SHIFT);
220 }
221
222 static void ie31200_clear_error_info(struct mem_ctl_info *mci)
223 {
224         /*
225          * Clear any error bits.
226          * (Yes, we really clear bits by writing 1 to them.)
227          */
228         pci_write_bits16(to_pci_dev(mci->pdev), IE31200_ERRSTS,
229                          IE31200_ERRSTS_BITS, IE31200_ERRSTS_BITS);
230 }
231
232 static void ie31200_get_and_clear_error_info(struct mem_ctl_info *mci,
233                                              struct ie31200_error_info *info)
234 {
235         struct pci_dev *pdev;
236         struct ie31200_priv *priv = mci->pvt_info;
237
238         pdev = to_pci_dev(mci->pdev);
239
240         /*
241          * This is a mess because there is no atomic way to read all the
242          * registers at once and the registers can transition from CE being
243          * overwritten by UE.
244          */
245         pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts);
246         if (!(info->errsts & IE31200_ERRSTS_BITS))
247                 return;
248
249         info->eccerrlog[0] = lo_hi_readq(priv->c0errlog);
250         if (nr_channels == 2)
251                 info->eccerrlog[1] = lo_hi_readq(priv->c1errlog);
252
253         pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts2);
254
255         /*
256          * If the error is the same for both reads then the first set
257          * of reads is valid.  If there is a change then there is a CE
258          * with no info and the second set of reads is valid and
259          * should be UE info.
260          */
261         if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) {
262                 info->eccerrlog[0] = lo_hi_readq(priv->c0errlog);
263                 if (nr_channels == 2)
264                         info->eccerrlog[1] =
265                                 lo_hi_readq(priv->c1errlog);
266         }
267
268         ie31200_clear_error_info(mci);
269 }
270
271 static void ie31200_process_error_info(struct mem_ctl_info *mci,
272                                        struct ie31200_error_info *info)
273 {
274         int channel;
275         u64 log;
276
277         if (!(info->errsts & IE31200_ERRSTS_BITS))
278                 return;
279
280         if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) {
281                 edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0,
282                                      -1, -1, -1, "UE overwrote CE", "");
283                 info->errsts = info->errsts2;
284         }
285
286         for (channel = 0; channel < nr_channels; channel++) {
287                 log = info->eccerrlog[channel];
288                 if (log & IE31200_ECCERRLOG_UE) {
289                         edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
290                                              0, 0, 0,
291                                              eccerrlog_row(log),
292                                              channel, -1,
293                                              "ie31200 UE", "");
294                 } else if (log & IE31200_ECCERRLOG_CE) {
295                         edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
296                                              0, 0,
297                                              IE31200_ECCERRLOG_SYNDROME(log),
298                                              eccerrlog_row(log),
299                                              channel, -1,
300                                              "ie31200 CE", "");
301                 }
302         }
303 }
304
305 static void ie31200_check(struct mem_ctl_info *mci)
306 {
307         struct ie31200_error_info info;
308
309         edac_dbg(1, "MC%d\n", mci->mc_idx);
310         ie31200_get_and_clear_error_info(mci, &info);
311         ie31200_process_error_info(mci, &info);
312 }
313
314 static void __iomem *ie31200_map_mchbar(struct pci_dev *pdev)
315 {
316         union {
317                 u64 mchbar;
318                 struct {
319                         u32 mchbar_low;
320                         u32 mchbar_high;
321                 };
322         } u;
323         void __iomem *window;
324
325         pci_read_config_dword(pdev, IE31200_MCHBAR_LOW, &u.mchbar_low);
326         pci_read_config_dword(pdev, IE31200_MCHBAR_HIGH, &u.mchbar_high);
327         u.mchbar &= IE31200_MCHBAR_MASK;
328
329         if (u.mchbar != (resource_size_t)u.mchbar) {
330                 ie31200_printk(KERN_ERR, "mmio space beyond accessible range (0x%llx)\n",
331                                (unsigned long long)u.mchbar);
332                 return NULL;
333         }
334
335         window = ioremap_nocache(u.mchbar, IE31200_MMR_WINDOW_SIZE);
336         if (!window)
337                 ie31200_printk(KERN_ERR, "Cannot map mmio space at 0x%llx\n",
338                                (unsigned long long)u.mchbar);
339
340         return window;
341 }
342
343 static void __skl_populate_dimm_info(struct dimm_data *dd, u32 addr_decode,
344                                      int chan)
345 {
346         dd->size = (addr_decode >> (chan << 4)) & IE31200_MAD_DIMM_SIZE;
347         dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK_SKL << (chan << 4))) ? 1 : 0;
348         dd->x16_width = ((addr_decode & (IE31200_MAD_DIMM_A_WIDTH_SKL << (chan << 4))) >>
349                                 (IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT + (chan << 4)));
350 }
351
352 static void __populate_dimm_info(struct dimm_data *dd, u32 addr_decode,
353                                  int chan)
354 {
355         dd->size = (addr_decode >> (chan << 3)) & IE31200_MAD_DIMM_SIZE;
356         dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK << chan)) ? 1 : 0;
357         dd->x16_width = (addr_decode & (IE31200_MAD_DIMM_A_WIDTH << chan)) ? 1 : 0;
358 }
359
360 static void populate_dimm_info(struct dimm_data *dd, u32 addr_decode, int chan,
361                                bool skl)
362 {
363         if (skl)
364                 __skl_populate_dimm_info(dd, addr_decode, chan);
365         else
366                 __populate_dimm_info(dd, addr_decode, chan);
367 }
368
369
370 static int ie31200_probe1(struct pci_dev *pdev, int dev_idx)
371 {
372         int i, j, ret;
373         struct mem_ctl_info *mci = NULL;
374         struct edac_mc_layer layers[2];
375         struct dimm_data dimm_info[IE31200_CHANNELS][IE31200_DIMMS_PER_CHANNEL];
376         void __iomem *window;
377         struct ie31200_priv *priv;
378         u32 addr_decode, mad_offset;
379         bool skl = (pdev->device == PCI_DEVICE_ID_INTEL_IE31200_HB_8);
380
381         edac_dbg(0, "MC:\n");
382
383         if (!ecc_capable(pdev)) {
384                 ie31200_printk(KERN_INFO, "No ECC support\n");
385                 return -ENODEV;
386         }
387
388         nr_channels = how_many_channels(pdev);
389         layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
390         layers[0].size = IE31200_DIMMS;
391         layers[0].is_virt_csrow = true;
392         layers[1].type = EDAC_MC_LAYER_CHANNEL;
393         layers[1].size = nr_channels;
394         layers[1].is_virt_csrow = false;
395         mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers,
396                             sizeof(struct ie31200_priv));
397         if (!mci)
398                 return -ENOMEM;
399
400         window = ie31200_map_mchbar(pdev);
401         if (!window) {
402                 ret = -ENODEV;
403                 goto fail_free;
404         }
405
406         edac_dbg(3, "MC: init mci\n");
407         mci->pdev = &pdev->dev;
408         if (skl)
409                 mci->mtype_cap = MEM_FLAG_DDR4;
410         else
411                 mci->mtype_cap = MEM_FLAG_DDR3;
412         mci->edac_ctl_cap = EDAC_FLAG_SECDED;
413         mci->edac_cap = EDAC_FLAG_SECDED;
414         mci->mod_name = EDAC_MOD_STR;
415         mci->mod_ver = IE31200_REVISION;
416         mci->ctl_name = ie31200_devs[dev_idx].ctl_name;
417         mci->dev_name = pci_name(pdev);
418         mci->edac_check = ie31200_check;
419         mci->ctl_page_to_phys = NULL;
420         priv = mci->pvt_info;
421         priv->window = window;
422         if (skl) {
423                 priv->c0errlog = window + IE31200_C0ECCERRLOG_SKL;
424                 priv->c1errlog = window + IE31200_C1ECCERRLOG_SKL;
425                 mad_offset = IE31200_MAD_DIMM_0_OFFSET_SKL;
426         } else {
427                 priv->c0errlog = window + IE31200_C0ECCERRLOG;
428                 priv->c1errlog = window + IE31200_C1ECCERRLOG;
429                 mad_offset = IE31200_MAD_DIMM_0_OFFSET;
430         }
431
432         /* populate DIMM info */
433         for (i = 0; i < IE31200_CHANNELS; i++) {
434                 addr_decode = readl(window + mad_offset +
435                                         (i * 4));
436                 edac_dbg(0, "addr_decode: 0x%x\n", addr_decode);
437                 for (j = 0; j < IE31200_DIMMS_PER_CHANNEL; j++) {
438                         populate_dimm_info(&dimm_info[i][j], addr_decode, j,
439                                            skl);
440                         edac_dbg(0, "size: 0x%x, rank: %d, width: %d\n",
441                                  dimm_info[i][j].size,
442                                  dimm_info[i][j].dual_rank,
443                                  dimm_info[i][j].x16_width);
444                 }
445         }
446
447         /*
448          * The dram rank boundary (DRB) reg values are boundary addresses
449          * for each DRAM rank with a granularity of 64MB.  DRB regs are
450          * cumulative; the last one will contain the total memory
451          * contained in all ranks.
452          */
453         for (i = 0; i < IE31200_DIMMS_PER_CHANNEL; i++) {
454                 for (j = 0; j < IE31200_CHANNELS; j++) {
455                         struct dimm_info *dimm;
456                         unsigned long nr_pages;
457
458                         nr_pages = IE31200_PAGES(dimm_info[j][i].size, skl);
459                         if (nr_pages == 0)
460                                 continue;
461
462                         if (dimm_info[j][i].dual_rank) {
463                                 nr_pages = nr_pages / 2;
464                                 dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
465                                                      mci->n_layers, (i * 2) + 1,
466                                                      j, 0);
467                                 dimm->nr_pages = nr_pages;
468                                 edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages);
469                                 dimm->grain = 8; /* just a guess */
470                                 if (skl)
471                                         dimm->mtype = MEM_DDR4;
472                                 else
473                                         dimm->mtype = MEM_DDR3;
474                                 dimm->dtype = DEV_UNKNOWN;
475                                 dimm->edac_mode = EDAC_UNKNOWN;
476                         }
477                         dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
478                                              mci->n_layers, i * 2, j, 0);
479                         dimm->nr_pages = nr_pages;
480                         edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages);
481                         dimm->grain = 8; /* same guess */
482                         if (skl)
483                                 dimm->mtype = MEM_DDR4;
484                         else
485                                 dimm->mtype = MEM_DDR3;
486                         dimm->dtype = DEV_UNKNOWN;
487                         dimm->edac_mode = EDAC_UNKNOWN;
488                 }
489         }
490
491         ie31200_clear_error_info(mci);
492
493         if (edac_mc_add_mc(mci)) {
494                 edac_dbg(3, "MC: failed edac_mc_add_mc()\n");
495                 ret = -ENODEV;
496                 goto fail_unmap;
497         }
498
499         /* get this far and it's successful */
500         edac_dbg(3, "MC: success\n");
501         return 0;
502
503 fail_unmap:
504         iounmap(window);
505
506 fail_free:
507         edac_mc_free(mci);
508
509         return ret;
510 }
511
512 static int ie31200_init_one(struct pci_dev *pdev,
513                             const struct pci_device_id *ent)
514 {
515         edac_dbg(0, "MC:\n");
516
517         if (pci_enable_device(pdev) < 0)
518                 return -EIO;
519
520         return ie31200_probe1(pdev, ent->driver_data);
521 }
522
523 static void ie31200_remove_one(struct pci_dev *pdev)
524 {
525         struct mem_ctl_info *mci;
526         struct ie31200_priv *priv;
527
528         edac_dbg(0, "\n");
529         mci = edac_mc_del_mc(&pdev->dev);
530         if (!mci)
531                 return;
532         priv = mci->pvt_info;
533         iounmap(priv->window);
534         edac_mc_free(mci);
535 }
536
537 static const struct pci_device_id ie31200_pci_tbl[] = {
538         {
539                 PCI_VEND_DEV(INTEL, IE31200_HB_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
540                 IE31200},
541         {
542                 PCI_VEND_DEV(INTEL, IE31200_HB_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
543                 IE31200},
544         {
545                 PCI_VEND_DEV(INTEL, IE31200_HB_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
546                 IE31200},
547         {
548                 PCI_VEND_DEV(INTEL, IE31200_HB_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
549                 IE31200},
550         {
551                 PCI_VEND_DEV(INTEL, IE31200_HB_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
552                 IE31200},
553         {
554                 PCI_VEND_DEV(INTEL, IE31200_HB_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
555                 IE31200},
556         {
557                 PCI_VEND_DEV(INTEL, IE31200_HB_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
558                 IE31200},
559         {
560                 PCI_VEND_DEV(INTEL, IE31200_HB_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
561                 IE31200},
562         {
563                 0,
564         }            /* 0 terminated list. */
565 };
566 MODULE_DEVICE_TABLE(pci, ie31200_pci_tbl);
567
568 static struct pci_driver ie31200_driver = {
569         .name = EDAC_MOD_STR,
570         .probe = ie31200_init_one,
571         .remove = ie31200_remove_one,
572         .id_table = ie31200_pci_tbl,
573 };
574
575 static int __init ie31200_init(void)
576 {
577         edac_dbg(3, "MC:\n");
578         /* Ensure that the OPSTATE is set correctly for POLL or NMI */
579         opstate_init();
580
581         return pci_register_driver(&ie31200_driver);
582 }
583
584 static void __exit ie31200_exit(void)
585 {
586         edac_dbg(3, "MC:\n");
587         pci_unregister_driver(&ie31200_driver);
588 }
589
590 module_init(ie31200_init);
591 module_exit(ie31200_exit);
592
593 MODULE_LICENSE("GPL");
594 MODULE_AUTHOR("Jason Baron <jbaron@akamai.com>");
595 MODULE_DESCRIPTION("MC support for Intel Processor E31200 memory hub controllers");