drivers/edac/e7xxx

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

DEFINITIONS
