drivers/edac/e7xxx_edac.c

   1 /*
   2  * Intel e7xxx Memory Controller kernel module
   3  * (C) 2003 Linux Networx (http://lnxi.com)
   4  * This file may be distributed under the terms of the
   5  * GNU General Public License.
   6  *
   7  * See "enum e7xxx_chips" below for supported chipsets
   8  *
   9  * Written by Thayne Harbaugh
  10  * Based on work by Dan Hollis <goemon at anime dot net> and others.
  11  *      http://www.anime.net/~goemon/linux-ecc/
  12  *
  13  * Datasheet:
  14  *      http://www.intel.com/content/www/us/en/chipsets/e7501-chipset-memory-controller-hub-datasheet.html
  15  *
  16  * Contributors:
  17  *      Eric Biederman (Linux Networx)
  18  *      Tom Zimmerman (Linux Networx)
  19  *      Jim Garlick (Lawrence Livermore National Labs)
  20  *      Dave Peterson (Lawrence Livermore National Labs)
  21  *      That One Guy (Some other place)
  22  *      Wang Zhenyu (intel.com)
  23  *
  24  * $Id: edac_e7xxx.c,v 1.5.2.9 2005/10/05 00:43:44 dsp_llnl Exp $
  25  *
  26  */
  27
  28 #include <linux/module.h>
  29 #include <linux/init.h>
  30 #include <linux/pci.h>
  31 #include <linux/pci_ids.h>
  32 #include <linux/edac.h>
  33 #include "edac_core.h"
  34
  35 #define E7XXX_REVISION " Ver: 2.0.2"
  36 #define EDAC_MOD_STR    "e7xxx_edac"
  37
  38 #define e7xxx_printk(level, fmt, arg...) \
  39         edac_printk(level, "e7xxx", fmt, ##arg)
  40
  41 #define e7xxx_mc_printk(mci, level, fmt, arg...) \
  42         edac_mc_chipset_printk(mci, level, "e7xxx", fmt, ##arg)
  43
  44 #ifndef PCI_DEVICE_ID_INTEL_7205_0
  45 #define PCI_DEVICE_ID_INTEL_7205_0      0x255d
  46 #endif                          /* PCI_DEVICE_ID_INTEL_7205_0 */
  47
  48 #ifndef PCI_DEVICE_ID_INTEL_7205_1_ERR
  49 #define PCI_DEVICE_ID_INTEL_7205_1_ERR  0x2551
  50 #endif                          /* PCI_DEVICE_ID_INTEL_7205_1_ERR */
  51
  52 #ifndef PCI_DEVICE_ID_INTEL_7500_0
  53 #define PCI_DEVICE_ID_INTEL_7500_0      0x2540
  54 #endif                          /* PCI_DEVICE_ID_INTEL_7500_0 */
  55
  56 #ifndef PCI_DEVICE_ID_INTEL_7500_1_ERR
  57 #define PCI_DEVICE_ID_INTEL_7500_1_ERR  0x2541
  58 #endif                          /* PCI_DEVICE_ID_INTEL_7500_1_ERR */
  59
  60 #ifndef PCI_DEVICE_ID_INTEL_7501_0
  61 #define PCI_DEVICE_ID_INTEL_7501_0      0x254c
  62 #endif                          /* PCI_DEVICE_ID_INTEL_7501_0 */
  63
  64 #ifndef PCI_DEVICE_ID_INTEL_7501_1_ERR
  65 #define PCI_DEVICE_ID_INTEL_7501_1_ERR  0x2541
  66 #endif                          /* PCI_DEVICE_ID_INTEL_7501_1_ERR */
  67
  68 #ifndef PCI_DEVICE_ID_INTEL_7505_0
  69 #define PCI_DEVICE_ID_INTEL_7505_0      0x2550
  70 #endif                          /* PCI_DEVICE_ID_INTEL_7505_0 */
  71
  72 #ifndef PCI_DEVICE_ID_INTEL_7505_1_ERR
  73 #define PCI_DEVICE_ID_INTEL_7505_1_ERR  0x2551
  74 #endif                          /* PCI_DEVICE_ID_INTEL_7505_1_ERR */
  75
  76 #define E7XXX_NR_CSROWS         8       /* number of csrows */
  77 #define E7XXX_NR_DIMMS          8       /* 2 channels, 4 dimms/channel */
  78
  79 /* E7XXX register addresses - device 0 function 0 */
  80 #define E7XXX_DRB               0x60    /* DRAM row boundary register (8b) */
  81 #define E7XXX_DRA               0x70    /* DRAM row attribute register (8b) */
  82                                         /*
  83                                          * 31   Device width row 7 0=x8 1=x4
  84                                          * 27   Device width row 6
  85                                          * 23   Device width row 5
  86                                          * 19   Device width row 4
  87                                          * 15   Device width row 3
  88                                          * 11   Device width row 2
  89                                          *  7   Device width row 1
  90                                          *  3   Device width row 0
  91                                          */
  92 #define E7XXX_DRC               0x7C    /* DRAM controller mode reg (32b) */
  93                                         /*
  94                                          * 22    Number channels 0=1,1=2
  95                                          * 19:18 DRB Granularity 32/64MB
  96                                          */
  97 #define E7XXX_TOLM              0xC4    /* DRAM top of low memory reg (16b) */
  98 #define E7XXX_REMAPBASE         0xC6    /* DRAM remap base address reg (16b) */
  99 #define E7XXX_REMAPLIMIT        0xC8    /* DRAM remap limit address reg (16b) */
 100
 101 /* E7XXX register addresses - device 0 function 1 */
 102 #define E7XXX_DRAM_FERR         0x80    /* DRAM first error register (8b) */
 103 #define E7XXX_DRAM_NERR         0x82    /* DRAM next error register (8b) */
 104 #define E7XXX_DRAM_CELOG_ADD    0xA0    /* DRAM first correctable memory */
 105                                         /*     error address register (32b) */
 106                                         /*
 107                                          * 31:28 Reserved
 108                                          * 27:6  CE address (4k block 33:12)
 109                                          *  5:0  Reserved
 110                                          */
 111 #define E7XXX_DRAM_UELOG_ADD    0xB0    /* DRAM first uncorrectable memory */
 112                                         /*     error address register (32b) */
 113                                         /*
 114                                          * 31:28 Reserved
 115                                          * 27:6  CE address (4k block 33:12)
 116                                          *  5:0  Reserved
 117                                          */
 118 #define E7XXX_DRAM_CELOG_SYNDROME 0xD0  /* DRAM first correctable memory */
 119                                         /*     error syndrome register (16b) */
 120
 121 enum e7xxx_chips {
 122         E7500 = 0,
 123         E7501,
 124         E7505,
 125         E7205,
 126 };
 127
 128 struct e7xxx_pvt {
 129         struct pci_dev *bridge_ck;
 130         u32 tolm;
 131         u32 remapbase;
 132         u32 remaplimit;
 133         const struct e7xxx_dev_info *dev_info;
 134 };
 135
 136 struct e7xxx_dev_info {
 137         u16 err_dev;
 138         const char *ctl_name;
 139 };
 140
 141 struct e7xxx_error_info {
 142         u8 dram_ferr;
 143         u8 dram_nerr;
 144         u32 dram_celog_add;
 145         u16 dram_celog_syndrome;
 146         u32 dram_uelog_add;
 147 };
 148
 149 static struct edac_pci_ctl_info *e7xxx_pci;
 150
 151 static const struct e7xxx_dev_info e7xxx_devs[] = {
 152         [E7500] = {
 153                 .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
 154                 .ctl_name = "E7500"},
 155         [E7501] = {
 156                 .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
 157                 .ctl_name = "E7501"},
 158         [E7505] = {
 159                 .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
 160                 .ctl_name = "E7505"},
 161         [E7205] = {
 162                 .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
 163                 .ctl_name = "E7205"},
 164 };
 165
 166 /* FIXME - is this valid for both SECDED and S4ECD4ED? */
 167 static inline int e7xxx_find_channel(u16 syndrome)
 168 {
 169         debugf3("%s()\n", __func__);
 170
 171         if ((syndrome & 0xff00) == 0)
 172                 return 0;
 173
 174         if ((syndrome & 0x00ff) == 0)
 175                 return 1;
 176
 177         if ((syndrome & 0xf000) == 0 || (syndrome & 0x0f00) == 0)
 178                 return 0;
 179
 180         return 1;
 181 }
 182
 183 static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
 184                                 unsigned long page)
 185 {
 186         u32 remap;
 187         struct e7xxx_pvt *pvt = (struct e7xxx_pvt *)mci->pvt_info;
 188
 189         debugf3("%s()\n", __func__);
 190
 191         if ((page < pvt->tolm) ||
 192                 ((page >= 0x100000) && (page < pvt->remapbase)))
 193                 return page;
 194
 195         remap = (page - pvt->tolm) + pvt->remapbase;
 196
 197         if (remap < pvt->remaplimit)
 198                 return remap;
 199
 200         e7xxx_printk(KERN_ERR, "Invalid page %lx - out of range\n", page);
 201         return pvt->tolm - 1;
 202 }
 203
 204 static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
 205 {
 206         u32 error_1b, page;
 207         u16 syndrome;
 208         int row;
 209         int channel;
 210
 211         debugf3("%s()\n", __func__);
 212         /* read the error address */
 213         error_1b = info->dram_celog_add;
 214         /* FIXME - should use PAGE_SHIFT */
 215         page = error_1b >> 6;   /* convert the address to 4k page */
 216         /* read the syndrome */
 217         syndrome = info->dram_celog_syndrome;
 218         /* FIXME - check for -1 */
 219         row = edac_mc_find_csrow_by_page(mci, page);
 220         /* convert syndrome to channel */
 221         channel = e7xxx_find_channel(syndrome);
 222         edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, page, 0, syndrome,
 223                              row, channel, -1, "e7xxx CE", "", NULL);
 224 }
 225
 226 static void process_ce_no_info(struct mem_ctl_info *mci)
 227 {
 228         debugf3("%s()\n", __func__);
 229         edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0, -1, -1, -1,
 230                              "e7xxx CE log register overflow", "", NULL);
 231 }
 232
 233 static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
 234 {
 235         u32 error_2b, block_page;
 236         int row;
 237
 238         debugf3("%s()\n", __func__);
 239         /* read the error address */
 240         error_2b = info->dram_uelog_add;
 241         /* FIXME - should use PAGE_SHIFT */
 242         block_page = error_2b >> 6;     /* convert to 4k address */
 243         row = edac_mc_find_csrow_by_page(mci, block_page);
 244
 245         edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, block_page, 0, 0,
 246                              row, -1, -1, "e7xxx UE", "", NULL);
 247 }
 248
 249 static void process_ue_no_info(struct mem_ctl_info *mci)
 250 {
 251         debugf3("%s()\n", __func__);
 252
 253         edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0, -1, -1, -1,
 254                              "e7xxx UE log register overflow", "", NULL);
 255 }
 256
 257 static void e7xxx_get_error_info(struct mem_ctl_info *mci,
 258                                  struct e7xxx_error_info *info)
 259 {
 260         struct e7xxx_pvt *pvt;
 261
 262         pvt = (struct e7xxx_pvt *)mci->pvt_info;
 263         pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR, &info->dram_ferr);
 264         pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR, &info->dram_nerr);
 265
 266         if ((info->dram_ferr & 1) || (info->dram_nerr & 1)) {
 267                 pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_CELOG_ADD,
 268                                 &info->dram_celog_add);
 269                 pci_read_config_word(pvt->bridge_ck,
 270                                 E7XXX_DRAM_CELOG_SYNDROME,
 271                                 &info->dram_celog_syndrome);
 272         }
 273
 274         if ((info->dram_ferr & 2) || (info->dram_nerr & 2))
 275                 pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_UELOG_ADD,
 276                                 &info->dram_uelog_add);
 277
 278         if (info->dram_ferr & 3)
 279                 pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_FERR, 0x03, 0x03);
 280
 281         if (info->dram_nerr & 3)
 282                 pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03, 0x03);
 283 }
 284
 285 static int e7xxx_process_error_info(struct mem_ctl_info *mci,
 286                                 struct e7xxx_error_info *info,
 287                                 int handle_errors)
 288 {
 289         int error_found;
 290
 291         error_found = 0;
 292
 293         /* decode and report errors */
 294         if (info->dram_ferr & 1) {      /* check first error correctable */
 295                 error_found = 1;
 296
 297                 if (handle_errors)
 298                         process_ce(mci, info);
 299         }
 300
 301         if (info->dram_ferr & 2) {      /* check first error uncorrectable */
 302                 error_found = 1;
 303
 304                 if (handle_errors)
 305                         process_ue(mci, info);
 306         }
 307
 308         if (info->dram_nerr & 1) {      /* check next error correctable */
 309                 error_found = 1;
 310
 311                 if (handle_errors) {
 312                         if (info->dram_ferr & 1)
 313                                 process_ce_no_info(mci);
 314                         else
 315                                 process_ce(mci, info);
 316                 }
 317         }
 318
 319         if (info->dram_nerr & 2) {      /* check next error uncorrectable */
 320                 error_found = 1;
 321
 322                 if (handle_errors) {
 323                         if (info->dram_ferr & 2)
 324                                 process_ue_no_info(mci);
 325                         else
 326                                 process_ue(mci, info);
 327                 }
 328         }
 329
 330         return error_found;
 331 }
 332
 333 static void e7xxx_check(struct mem_ctl_info *mci)
 334 {
 335         struct e7xxx_error_info info;
 336
 337         debugf3("%s()\n", __func__);
 338         e7xxx_get_error_info(mci, &info);
 339         e7xxx_process_error_info(mci, &info, 1);
 340 }
 341
 342 /* Return 1 if dual channel mode is active.  Else return 0. */
 343 static inline int dual_channel_active(u32 drc, int dev_idx)
 344 {
 345         return (dev_idx == E7501) ? ((drc >> 22) & 0x1) : 1;
 346 }
 347
 348 /* Return DRB granularity (0=32mb, 1=64mb). */
 349 static inline int drb_granularity(u32 drc, int dev_idx)
 350 {
 351         /* only e7501 can be single channel */
 352         return (dev_idx == E7501) ? ((drc >> 18) & 0x3) : 1;
 353 }
 354
 355 static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
 356                         int dev_idx, u32 drc)
 357 {
 358         unsigned long last_cumul_size;
 359         int index, j;
 360         u8 value;
 361         u32 dra, cumul_size, nr_pages;
 362         int drc_chan, drc_drbg, drc_ddim, mem_dev;
 363         struct csrow_info *csrow;
 364         struct dimm_info *dimm;
 365
 366         pci_read_config_dword(pdev, E7XXX_DRA, &dra);
 367         drc_chan = dual_channel_active(drc, dev_idx);
 368         drc_drbg = drb_granularity(drc, dev_idx);
 369         drc_ddim = (drc >> 20) & 0x3;
 370         last_cumul_size = 0;
 371
 372         /* The dram row boundary (DRB) reg values are boundary address
 373          * for each DRAM row with a granularity of 32 or 64MB (single/dual
 374          * channel operation).  DRB regs are cumulative; therefore DRB7 will
 375          * contain the total memory contained in all eight rows.
 376          */
 377         for (index = 0; index < mci->nr_csrows; index++) {
 378                 /* mem_dev 0=x8, 1=x4 */
 379                 mem_dev = (dra >> (index * 4 + 3)) & 0x1;
 380                 csrow = &mci->csrows[index];
 381
 382                 pci_read_config_byte(pdev, E7XXX_DRB + index, &value);
 383                 /* convert a 64 or 32 MiB DRB to a page size. */
 384                 cumul_size = value << (25 + drc_drbg - PAGE_SHIFT);
 385                 debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
 386                         cumul_size);
 387                 if (cumul_size == last_cumul_size)
 388                         continue;       /* not populated */
 389
 390                 csrow->first_page = last_cumul_size;
 391                 csrow->last_page = cumul_size - 1;
 392                 nr_pages = cumul_size - last_cumul_size;
 393                 last_cumul_size = cumul_size;
 394
 395                 for (j = 0; j < drc_chan + 1; j++) {
 396                         dimm = csrow->channels[j].dimm;
 397
 398                         dimm->nr_pages = nr_pages / (drc_chan + 1);
 399                         dimm->grain = 1 << 12;  /* 4KiB - resolution of CELOG */
 400                         dimm->mtype = MEM_RDDR; /* only one type supported */
 401                         dimm->dtype = mem_dev ? DEV_X4 : DEV_X8;
 402
 403                         /*
 404                         * if single channel or x8 devices then SECDED
 405                         * if dual channel and x4 then S4ECD4ED
 406                         */
 407                         if (drc_ddim) {
 408                                 if (drc_chan && mem_dev) {
 409                                         dimm->edac_mode = EDAC_S4ECD4ED;
 410                                         mci->edac_cap |= EDAC_FLAG_S4ECD4ED;
 411                                 } else {
 412                                         dimm->edac_mode = EDAC_SECDED;
 413                                         mci->edac_cap |= EDAC_FLAG_SECDED;
 414                                 }
 415                         } else
 416                                 dimm->edac_mode = EDAC_NONE;
 417                 }
 418         }
 419 }
 420
 421 static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
 422 {
 423         u16 pci_data;
 424         struct mem_ctl_info *mci = NULL;
 425         struct edac_mc_layer layers[2];
 426         struct e7xxx_pvt *pvt = NULL;
 427         u32 drc;
 428         int drc_chan;
 429         struct e7xxx_error_info discard;
 430
 431         debugf0("%s(): mci\n", __func__);
 432
 433         pci_read_config_dword(pdev, E7XXX_DRC, &drc);
 434
 435         drc_chan = dual_channel_active(drc, dev_idx);
 436         /*
 437          * According with the datasheet, this device has a maximum of
 438          * 4 DIMMS per channel, either single-rank or dual-rank. So, the
 439          * total amount of dimms is 8 (E7XXX_NR_DIMMS).
 440          * That means that the DIMM is mapped as CSROWs, and the channel
 441          * will map the rank. So, an error to either channel should be
 442          * attributed to the same dimm.
 443          */
 444         layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
 445         layers[0].size = E7XXX_NR_CSROWS;
 446         layers[0].is_virt_csrow = true;
 447         layers[1].type = EDAC_MC_LAYER_CHANNEL;
 448         layers[1].size = drc_chan + 1;
 449         layers[1].is_virt_csrow = false;
 450         mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(*pvt));
 451         if (mci == NULL)
 452                 return -ENOMEM;
 453
 454         debugf3("%s(): init mci\n", __func__);
 455         mci->mtype_cap = MEM_FLAG_RDDR;
 456         mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED |
 457                 EDAC_FLAG_S4ECD4ED;
 458         /* FIXME - what if different memory types are in different csrows? */
 459         mci->mod_name = EDAC_MOD_STR;
 460         mci->mod_ver = E7XXX_REVISION;
 461         mci->dev = &pdev->dev;
 462         debugf3("%s(): init pvt\n", __func__);
 463         pvt = (struct e7xxx_pvt *)mci->pvt_info;
 464         pvt->dev_info = &e7xxx_devs[dev_idx];
 465         pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL,
 466                                         pvt->dev_info->err_dev, pvt->bridge_ck);
 467
 468         if (!pvt->bridge_ck) {
 469                 e7xxx_printk(KERN_ERR, "error reporting device not found:"
 470                         "vendor %x device 0x%x (broken BIOS?)\n",
 471                         PCI_VENDOR_ID_INTEL, e7xxx_devs[dev_idx].err_dev);
 472                 goto fail0;
 473         }
 474
 475         debugf3("%s(): more mci init\n", __func__);
 476         mci->ctl_name = pvt->dev_info->ctl_name;
 477         mci->dev_name = pci_name(pdev);
 478         mci->edac_check = e7xxx_check;
 479         mci->ctl_page_to_phys = ctl_page_to_phys;
 480         e7xxx_init_csrows(mci, pdev, dev_idx, drc);
 481         mci->edac_cap |= EDAC_FLAG_NONE;
 482         debugf3("%s(): tolm, remapbase, remaplimit\n", __func__);
 483         /* load the top of low memory, remap base, and remap limit vars */
 484         pci_read_config_word(pdev, E7XXX_TOLM, &pci_data);
 485         pvt->tolm = ((u32) pci_data) << 4;
 486         pci_read_config_word(pdev, E7XXX_REMAPBASE, &pci_data);
 487         pvt->remapbase = ((u32) pci_data) << 14;
 488         pci_read_config_word(pdev, E7XXX_REMAPLIMIT, &pci_data);
 489         pvt->remaplimit = ((u32) pci_data) << 14;
 490         e7xxx_printk(KERN_INFO,
 491                 "tolm = %x, remapbase = %x, remaplimit = %x\n", pvt->tolm,
 492                 pvt->remapbase, pvt->remaplimit);
 493
 494         /* clear any pending errors, or initial state bits */
 495         e7xxx_get_error_info(mci, &discard);
 496
 497         /* Here we assume that we will never see multiple instances of this
 498          * type of memory controller.  The ID is therefore hardcoded to 0.
 499          */
 500         if (edac_mc_add_mc(mci)) {
 501                 debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
 502                 goto fail1;
 503         }
 504
 505         /* allocating generic PCI control info */
 506         e7xxx_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR);
 507         if (!e7xxx_pci) {
 508                 printk(KERN_WARNING
 509                         "%s(): Unable to create PCI control\n",
 510                         __func__);
 511                 printk(KERN_WARNING
 512                         "%s(): PCI error report via EDAC not setup\n",
 513                         __func__);
 514         }
 515
 516         /* get this far and it's successful */
 517         debugf3("%s(): success\n", __func__);
 518         return 0;
 519
 520 fail1:
 521         pci_dev_put(pvt->bridge_ck);
 522
 523 fail0:
 524         edac_mc_free(mci);
 525
 526         return -ENODEV;
 527 }
 528
 529 /* returns count (>= 0), or negative on error */
 530 static int __devinit e7xxx_init_one(struct pci_dev *pdev,
 531                                 const struct pci_device_id *ent)
 532 {
 533         debugf0("%s()\n", __func__);
 534
 535         /* wake up and enable device */
 536         return pci_enable_device(pdev) ?
 537                 -EIO : e7xxx_probe1(pdev, ent->driver_data);
 538 }
 539
 540 static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
 541 {
 542         struct mem_ctl_info *mci;
 543         struct e7xxx_pvt *pvt;
 544
 545         debugf0("%s()\n", __func__);
 546
 547         if (e7xxx_pci)
 548                 edac_pci_release_generic_ctl(e7xxx_pci);
 549
 550         if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
 551                 return;
 552
 553         pvt = (struct e7xxx_pvt *)mci->pvt_info;
 554         pci_dev_put(pvt->bridge_ck);
 555         edac_mc_free(mci);
 556 }
 557
 558 static DEFINE_PCI_DEVICE_TABLE(e7xxx_pci_tbl) = {
 559         {
 560          PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 561          E7205},
 562         {
 563          PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 564          E7500},
 565         {
 566          PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 567          E7501},
 568         {
 569          PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 570          E7505},
 571         {
 572          0,
 573          }                      /* 0 terminated list. */
 574 };
 575
 576 MODULE_DEVICE_TABLE(pci, e7xxx_pci_tbl);
 577
 578 static struct pci_driver e7xxx_driver = {
 579         .name = EDAC_MOD_STR,
 580         .probe = e7xxx_init_one,
 581         .remove = __devexit_p(e7xxx_remove_one),
 582         .id_table = e7xxx_pci_tbl,
 583 };
 584
 585 static int __init e7xxx_init(void)
 586 {
 587        /* Ensure that the OPSTATE is set correctly for POLL or NMI */
 588        opstate_init();
 589
 590         return pci_register_driver(&e7xxx_driver);
 591 }
 592
 593 static void __exit e7xxx_exit(void)
 594 {
 595         pci_unregister_driver(&e7xxx_driver);
 596 }
 597
 598 module_init(e7xxx_init);
 599 module_exit(e7xxx_exit);
 600
 601 MODULE_LICENSE("GPL");
 602 MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n"
 603                 "Based on.work by Dan Hollis et al");
 604 MODULE_DESCRIPTION("MC support for Intel e7xxx memory controllers");
 605 module_param(edac_op_state, int, 0444);
 606 MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");