drivers/edac/amd8111_edac.c

   1 /*
   2  * amd8111_edac.c, AMD8111 Hyper Transport chip EDAC kernel module
   3  *
   4  * Copyright (c) 2008 Wind River Systems, Inc.
   5  *
   6  * Authors:     Cao Qingtao <qingtao.cao@windriver.com>
   7  *              Benjamin Walsh <benjamin.walsh@windriver.com>
   8  *              Hu Yongqi <yongqi.hu@windriver.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17  * See the GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/init.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/bitops.h>
  28 #include <linux/edac.h>
  29 #include <linux/pci_ids.h>
  30 #include <asm/io.h>
  31
  32 #include "edac_core.h"
  33 #include "edac_module.h"
  34 #include "amd8111_edac.h"
  35
  36 #define AMD8111_EDAC_REVISION   " Ver: 1.0.0"
  37 #define AMD8111_EDAC_MOD_STR    "amd8111_edac"
  38
  39 #define PCI_DEVICE_ID_AMD_8111_PCI      0x7460
  40
  41 enum amd8111_edac_devs {
  42         LPC_BRIDGE = 0,
  43 };
  44
  45 enum amd8111_edac_pcis {
  46         PCI_BRIDGE = 0,
  47 };
  48
  49 /* Wrapper functions for accessing PCI configuration space */
  50 static int edac_pci_read_dword(struct pci_dev *dev, int reg, u32 *val32)
  51 {
  52         int ret;
  53
  54         ret = pci_read_config_dword(dev, reg, val32);
  55         if (ret != 0)
  56                 printk(KERN_ERR AMD8111_EDAC_MOD_STR
  57                         " PCI Access Read Error at 0x%x\n", reg);
  58
  59         return ret;
  60 }
  61
  62 static void edac_pci_read_byte(struct pci_dev *dev, int reg, u8 *val8)
  63 {
  64         int ret;
  65
  66         ret = pci_read_config_byte(dev, reg, val8);
  67         if (ret != 0)
  68                 printk(KERN_ERR AMD8111_EDAC_MOD_STR
  69                         " PCI Access Read Error at 0x%x\n", reg);
  70 }
  71
  72 static void edac_pci_write_dword(struct pci_dev *dev, int reg, u32 val32)
  73 {
  74         int ret;
  75
  76         ret = pci_write_config_dword(dev, reg, val32);
  77         if (ret != 0)
  78                 printk(KERN_ERR AMD8111_EDAC_MOD_STR
  79                         " PCI Access Write Error at 0x%x\n", reg);
  80 }
  81
  82 static void edac_pci_write_byte(struct pci_dev *dev, int reg, u8 val8)
  83 {
  84         int ret;
  85
  86         ret = pci_write_config_byte(dev, reg, val8);
  87         if (ret != 0)
  88                 printk(KERN_ERR AMD8111_EDAC_MOD_STR
  89                         " PCI Access Write Error at 0x%x\n", reg);
  90 }
  91
  92 /*
  93  * device-specific methods for amd8111 PCI Bridge Controller
  94  *
  95  * Error Reporting and Handling for amd8111 chipset could be found
  96  * in its datasheet 3.1.2 section, P37
  97  */
  98 static void amd8111_pci_bridge_init(struct amd8111_pci_info *pci_info)
  99 {
 100         u32 val32;
 101         struct pci_dev *dev = pci_info->dev;
 102
 103         /* First clear error detection flags on the host interface */
 104
 105         /* Clear SSE/SMA/STA flags in the global status register*/
 106         edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32);
 107         if (val32 & PCI_STSCMD_CLEAR_MASK)
 108                 edac_pci_write_dword(dev, REG_PCI_STSCMD, val32);
 109
 110         /* Clear CRC and Link Fail flags in HT Link Control reg */
 111         edac_pci_read_dword(dev, REG_HT_LINK, &val32);
 112         if (val32 & HT_LINK_CLEAR_MASK)
 113                 edac_pci_write_dword(dev, REG_HT_LINK, val32);
 114
 115         /* Second clear all fault on the secondary interface */
 116
 117         /* Clear error flags in the memory-base limit reg. */
 118         edac_pci_read_dword(dev, REG_MEM_LIM, &val32);
 119         if (val32 & MEM_LIMIT_CLEAR_MASK)
 120                 edac_pci_write_dword(dev, REG_MEM_LIM, val32);
 121
 122         /* Clear Discard Timer Expired flag in Interrupt/Bridge Control reg */
 123         edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32);
 124         if (val32 & PCI_INTBRG_CTRL_CLEAR_MASK)
 125                 edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32);
 126
 127         /* Last enable error detections */
 128         if (edac_op_state == EDAC_OPSTATE_POLL) {
 129                 /* Enable System Error reporting in global status register */
 130                 edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32);
 131                 val32 |= PCI_STSCMD_SERREN;
 132                 edac_pci_write_dword(dev, REG_PCI_STSCMD, val32);
 133
 134                 /* Enable CRC Sync flood packets to HyperTransport Link */
 135                 edac_pci_read_dword(dev, REG_HT_LINK, &val32);
 136                 val32 |= HT_LINK_CRCFEN;
 137                 edac_pci_write_dword(dev, REG_HT_LINK, val32);
 138
 139                 /* Enable SSE reporting etc in Interrupt control reg */
 140                 edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32);
 141                 val32 |= PCI_INTBRG_CTRL_POLL_MASK;
 142                 edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32);
 143         }
 144 }
 145
 146 static void amd8111_pci_bridge_exit(struct amd8111_pci_info *pci_info)
 147 {
 148         u32 val32;
 149         struct pci_dev *dev = pci_info->dev;
 150
 151         if (edac_op_state == EDAC_OPSTATE_POLL) {
 152                 /* Disable System Error reporting */
 153                 edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32);
 154                 val32 &= ~PCI_STSCMD_SERREN;
 155                 edac_pci_write_dword(dev, REG_PCI_STSCMD, val32);
 156
 157                 /* Disable CRC flood packets */
 158                 edac_pci_read_dword(dev, REG_HT_LINK, &val32);
 159                 val32 &= ~HT_LINK_CRCFEN;
 160                 edac_pci_write_dword(dev, REG_HT_LINK, val32);
 161
 162                 /* Disable DTSERREN/MARSP/SERREN in Interrupt Control reg */
 163                 edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32);
 164                 val32 &= ~PCI_INTBRG_CTRL_POLL_MASK;
 165                 edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32);
 166         }
 167 }
 168
 169 static void amd8111_pci_bridge_check(struct edac_pci_ctl_info *edac_dev)
 170 {
 171         struct amd8111_pci_info *pci_info = edac_dev->pvt_info;
 172         struct pci_dev *dev = pci_info->dev;
 173         u32 val32;
 174
 175         /* Check out PCI Bridge Status and Command Register */
 176         edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32);
 177         if (val32 & PCI_STSCMD_CLEAR_MASK) {
 178                 printk(KERN_INFO "Error(s) in PCI bridge status and command"
 179                         "register on device %s\n", pci_info->ctl_name);
 180                 printk(KERN_INFO "SSE: %d, RMA: %d, RTA: %d\n",
 181                         (val32 & PCI_STSCMD_SSE) != 0,
 182                         (val32 & PCI_STSCMD_RMA) != 0,
 183                         (val32 & PCI_STSCMD_RTA) != 0);
 184
 185                 val32 |= PCI_STSCMD_CLEAR_MASK;
 186                 edac_pci_write_dword(dev, REG_PCI_STSCMD, val32);
 187
 188                 edac_pci_handle_npe(edac_dev, edac_dev->ctl_name);
 189         }
 190
 191         /* Check out HyperTransport Link Control Register */
 192         edac_pci_read_dword(dev, REG_HT_LINK, &val32);
 193         if (val32 & HT_LINK_LKFAIL) {
 194                 printk(KERN_INFO "Error(s) in hypertransport link control"
 195                         "register on device %s\n", pci_info->ctl_name);
 196                 printk(KERN_INFO "LKFAIL: %d\n",
 197                         (val32 & HT_LINK_LKFAIL) != 0);
 198
 199                 val32 |= HT_LINK_LKFAIL;
 200                 edac_pci_write_dword(dev, REG_HT_LINK, val32);
 201
 202                 edac_pci_handle_npe(edac_dev, edac_dev->ctl_name);
 203         }
 204
 205         /* Check out PCI Interrupt and Bridge Control Register */
 206         edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32);
 207         if (val32 & PCI_INTBRG_CTRL_DTSTAT) {
 208                 printk(KERN_INFO "Error(s) in PCI interrupt and bridge control"
 209                         "register on device %s\n", pci_info->ctl_name);
 210                 printk(KERN_INFO "DTSTAT: %d\n",
 211                         (val32 & PCI_INTBRG_CTRL_DTSTAT) != 0);
 212
 213                 val32 |= PCI_INTBRG_CTRL_DTSTAT;
 214                 edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32);
 215
 216                 edac_pci_handle_npe(edac_dev, edac_dev->ctl_name);
 217         }
 218
 219         /* Check out PCI Bridge Memory Base-Limit Register */
 220         edac_pci_read_dword(dev, REG_MEM_LIM, &val32);
 221         if (val32 & MEM_LIMIT_CLEAR_MASK) {
 222                 printk(KERN_INFO
 223                         "Error(s) in mem limit register on %s device\n",
 224                         pci_info->ctl_name);
 225                 printk(KERN_INFO "DPE: %d, RSE: %d, RMA: %d\n"
 226                         "RTA: %d, STA: %d, MDPE: %d\n",
 227                         (val32 & MEM_LIMIT_DPE)  != 0,
 228                         (val32 & MEM_LIMIT_RSE)  != 0,
 229                         (val32 & MEM_LIMIT_RMA)  != 0,
 230                         (val32 & MEM_LIMIT_RTA)  != 0,
 231                         (val32 & MEM_LIMIT_STA)  != 0,
 232                         (val32 & MEM_LIMIT_MDPE) != 0);
 233
 234                 val32 |= MEM_LIMIT_CLEAR_MASK;
 235                 edac_pci_write_dword(dev, REG_MEM_LIM, val32);
 236
 237                 edac_pci_handle_npe(edac_dev, edac_dev->ctl_name);
 238         }
 239 }
 240
 241 static struct resource *legacy_io_res;
 242 static int at_compat_reg_broken;
 243 #define LEGACY_NR_PORTS 1
 244
 245 /* device-specific methods for amd8111 LPC Bridge device */
 246 static void amd8111_lpc_bridge_init(struct amd8111_dev_info *dev_info)
 247 {
 248         u8 val8;
 249         struct pci_dev *dev = dev_info->dev;
 250
 251         /* First clear REG_AT_COMPAT[SERR, IOCHK] if necessary */
 252         legacy_io_res = request_region(REG_AT_COMPAT, LEGACY_NR_PORTS,
 253                                         AMD8111_EDAC_MOD_STR);
 254         if (!legacy_io_res)
 255                 printk(KERN_INFO "%s: failed to request legacy I/O region "
 256                         "start %d, len %d\n", __func__,
 257                         REG_AT_COMPAT, LEGACY_NR_PORTS);
 258         else {
 259                 val8 = __do_inb(REG_AT_COMPAT);
 260                 if (val8 == 0xff) { /* buggy port */
 261                         printk(KERN_INFO "%s: port %d is buggy, not supported"
 262                                 " by hardware?\n", __func__, REG_AT_COMPAT);
 263                         at_compat_reg_broken = 1;
 264                         release_region(REG_AT_COMPAT, LEGACY_NR_PORTS);
 265                         legacy_io_res = NULL;
 266                 } else {
 267                         u8 out8 = 0;
 268                         if (val8 & AT_COMPAT_SERR)
 269                                 out8 = AT_COMPAT_CLRSERR;
 270                         if (val8 & AT_COMPAT_IOCHK)
 271                                 out8 |= AT_COMPAT_CLRIOCHK;
 272                         if (out8 > 0)
 273                                 __do_outb(out8, REG_AT_COMPAT);
 274                 }
 275         }
 276
 277         /* Second clear error flags on LPC bridge */
 278         edac_pci_read_byte(dev, REG_IO_CTRL_1, &val8);
 279         if (val8 & IO_CTRL_1_CLEAR_MASK)
 280                 edac_pci_write_byte(dev, REG_IO_CTRL_1, val8);
 281 }
 282
 283 static void amd8111_lpc_bridge_exit(struct amd8111_dev_info *dev_info)
 284 {
 285         if (legacy_io_res)
 286                 release_region(REG_AT_COMPAT, LEGACY_NR_PORTS);
 287 }
 288
 289 static void amd8111_lpc_bridge_check(struct edac_device_ctl_info *edac_dev)
 290 {
 291         struct amd8111_dev_info *dev_info = edac_dev->pvt_info;
 292         struct pci_dev *dev = dev_info->dev;
 293         u8 val8;
 294
 295         edac_pci_read_byte(dev, REG_IO_CTRL_1, &val8);
 296         if (val8 & IO_CTRL_1_CLEAR_MASK) {
 297                 printk(KERN_INFO
 298                         "Error(s) in IO control register on %s device\n",
 299                         dev_info->ctl_name);
 300                 printk(KERN_INFO "LPC ERR: %d, PW2LPC: %d\n",
 301                         (val8 & IO_CTRL_1_LPC_ERR) != 0,
 302                         (val8 & IO_CTRL_1_PW2LPC) != 0);
 303
 304                 val8 |= IO_CTRL_1_CLEAR_MASK;
 305                 edac_pci_write_byte(dev, REG_IO_CTRL_1, val8);
 306
 307                 edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
 308         }
 309
 310         if (at_compat_reg_broken == 0) {
 311                 u8 out8 = 0;
 312                 val8 = __do_inb(REG_AT_COMPAT);
 313                 if (val8 & AT_COMPAT_SERR)
 314                         out8 = AT_COMPAT_CLRSERR;
 315                 if (val8 & AT_COMPAT_IOCHK)
 316                         out8 |= AT_COMPAT_CLRIOCHK;
 317                 if (out8 > 0) {
 318                         __do_outb(out8, REG_AT_COMPAT);
 319                         edac_device_handle_ue(edac_dev, 0, 0,
 320                                                 edac_dev->ctl_name);
 321                 }
 322         }
 323 }
 324
 325 /* General devices represented by edac_device_ctl_info */
 326 static struct amd8111_dev_info amd8111_devices[] = {
 327         [LPC_BRIDGE] = {
 328                 .err_dev = PCI_DEVICE_ID_AMD_8111_LPC,
 329                 .ctl_name = "lpc",
 330                 .init = amd8111_lpc_bridge_init,
 331                 .exit = amd8111_lpc_bridge_exit,
 332                 .check = amd8111_lpc_bridge_check,
 333         },
 334         {0},
 335 };
 336
 337 /* PCI controllers represented by edac_pci_ctl_info */
 338 static struct amd8111_pci_info amd8111_pcis[] = {
 339         [PCI_BRIDGE] = {
 340                 .err_dev = PCI_DEVICE_ID_AMD_8111_PCI,
 341                 .ctl_name = "AMD8111_PCI_Controller",
 342                 .init = amd8111_pci_bridge_init,
 343                 .exit = amd8111_pci_bridge_exit,
 344                 .check = amd8111_pci_bridge_check,
 345         },
 346         {0},
 347 };
 348
 349 static int amd8111_dev_probe(struct pci_dev *dev,
 350                                 const struct pci_device_id *id)
 351 {
 352         struct amd8111_dev_info *dev_info = &amd8111_devices[id->driver_data];
 353
 354         dev_info->dev = pci_get_device(PCI_VENDOR_ID_AMD,
 355                                         dev_info->err_dev, NULL);
 356
 357         if (!dev_info->dev) {
 358                 printk(KERN_ERR "EDAC device not found:"
 359                         "vendor %x, device %x, name %s\n",
 360                         PCI_VENDOR_ID_AMD, dev_info->err_dev,
 361                         dev_info->ctl_name);
 362                 return -ENODEV;
 363         }
 364
 365         if (pci_enable_device(dev_info->dev)) {
 366                 pci_dev_put(dev_info->dev);
 367                 printk(KERN_ERR "failed to enable:"
 368                         "vendor %x, device %x, name %s\n",
 369                         PCI_VENDOR_ID_AMD, dev_info->err_dev,
 370                         dev_info->ctl_name);
 371                 return -ENODEV;
 372         }
 373
 374         /*
 375          * we do not allocate extra private structure for
 376          * edac_device_ctl_info, but make use of existing
 377          * one instead.
 378         */
 379         dev_info->edac_idx = edac_device_alloc_index();
 380         dev_info->edac_dev =
 381                 edac_device_alloc_ctl_info(0, dev_info->ctl_name, 1,
 382                                            NULL, 0, 0,
 383                                            NULL, 0, dev_info->edac_idx);
 384         if (!dev_info->edac_dev)
 385                 return -ENOMEM;
 386
 387         dev_info->edac_dev->pvt_info = dev_info;
 388         dev_info->edac_dev->dev = &dev_info->dev->dev;
 389         dev_info->edac_dev->mod_name = AMD8111_EDAC_MOD_STR;
 390         dev_info->edac_dev->ctl_name = dev_info->ctl_name;
 391         dev_info->edac_dev->dev_name = dev_name(&dev_info->dev->dev);
 392
 393         if (edac_op_state == EDAC_OPSTATE_POLL)
 394                 dev_info->edac_dev->edac_check = dev_info->check;
 395
 396         if (dev_info->init)
 397                 dev_info->init(dev_info);
 398
 399         if (edac_device_add_device(dev_info->edac_dev) > 0) {
 400                 printk(KERN_ERR "failed to add edac_dev for %s\n",
 401                         dev_info->ctl_name);
 402                 edac_device_free_ctl_info(dev_info->edac_dev);
 403                 return -ENODEV;
 404         }
 405
 406         printk(KERN_INFO "added one edac_dev on AMD8111 "
 407                 "vendor %x, device %x, name %s\n",
 408                 PCI_VENDOR_ID_AMD, dev_info->err_dev,
 409                 dev_info->ctl_name);
 410
 411         return 0;
 412 }
 413
 414 static void amd8111_dev_remove(struct pci_dev *dev)
 415 {
 416         struct amd8111_dev_info *dev_info;
 417
 418         for (dev_info = amd8111_devices; dev_info->err_dev; dev_info++)
 419                 if (dev_info->dev->device == dev->device)
 420                         break;
 421
 422         if (!dev_info->err_dev) /* should never happen */
 423                 return;
 424
 425         if (dev_info->edac_dev) {
 426                 edac_device_del_device(dev_info->edac_dev->dev);
 427                 edac_device_free_ctl_info(dev_info->edac_dev);
 428         }
 429
 430         if (dev_info->exit)
 431                 dev_info->exit(dev_info);
 432
 433         pci_dev_put(dev_info->dev);
 434 }
 435
 436 static int amd8111_pci_probe(struct pci_dev *dev,
 437                                 const struct pci_device_id *id)
 438 {
 439         struct amd8111_pci_info *pci_info = &amd8111_pcis[id->driver_data];
 440
 441         pci_info->dev = pci_get_device(PCI_VENDOR_ID_AMD,
 442                                         pci_info->err_dev, NULL);
 443
 444         if (!pci_info->dev) {
 445                 printk(KERN_ERR "EDAC device not found:"
 446                         "vendor %x, device %x, name %s\n",
 447                         PCI_VENDOR_ID_AMD, pci_info->err_dev,
 448                         pci_info->ctl_name);
 449                 return -ENODEV;
 450         }
 451
 452         if (pci_enable_device(pci_info->dev)) {
 453                 pci_dev_put(pci_info->dev);
 454                 printk(KERN_ERR "failed to enable:"
 455                         "vendor %x, device %x, name %s\n",
 456                         PCI_VENDOR_ID_AMD, pci_info->err_dev,
 457                         pci_info->ctl_name);
 458                 return -ENODEV;
 459         }
 460
 461         /*
 462          * we do not allocate extra private structure for
 463          * edac_pci_ctl_info, but make use of existing
 464          * one instead.
 465         */
 466         pci_info->edac_idx = edac_pci_alloc_index();
 467         pci_info->edac_dev = edac_pci_alloc_ctl_info(0, pci_info->ctl_name);
 468         if (!pci_info->edac_dev)
 469                 return -ENOMEM;
 470
 471         pci_info->edac_dev->pvt_info = pci_info;
 472         pci_info->edac_dev->dev = &pci_info->dev->dev;
 473         pci_info->edac_dev->mod_name = AMD8111_EDAC_MOD_STR;
 474         pci_info->edac_dev->ctl_name = pci_info->ctl_name;
 475         pci_info->edac_dev->dev_name = dev_name(&pci_info->dev->dev);
 476
 477         if (edac_op_state == EDAC_OPSTATE_POLL)
 478                 pci_info->edac_dev->edac_check = pci_info->check;
 479
 480         if (pci_info->init)
 481                 pci_info->init(pci_info);
 482
 483         if (edac_pci_add_device(pci_info->edac_dev, pci_info->edac_idx) > 0) {
 484                 printk(KERN_ERR "failed to add edac_pci for %s\n",
 485                         pci_info->ctl_name);
 486                 edac_pci_free_ctl_info(pci_info->edac_dev);
 487                 return -ENODEV;
 488         }
 489
 490         printk(KERN_INFO "added one edac_pci on AMD8111 "
 491                 "vendor %x, device %x, name %s\n",
 492                 PCI_VENDOR_ID_AMD, pci_info->err_dev,
 493                 pci_info->ctl_name);
 494
 495         return 0;
 496 }
 497
 498 static void amd8111_pci_remove(struct pci_dev *dev)
 499 {
 500         struct amd8111_pci_info *pci_info;
 501
 502         for (pci_info = amd8111_pcis; pci_info->err_dev; pci_info++)
 503                 if (pci_info->dev->device == dev->device)
 504                         break;
 505
 506         if (!pci_info->err_dev) /* should never happen */
 507                 return;
 508
 509         if (pci_info->edac_dev) {
 510                 edac_pci_del_device(pci_info->edac_dev->dev);
 511                 edac_pci_free_ctl_info(pci_info->edac_dev);
 512         }
 513
 514         if (pci_info->exit)
 515                 pci_info->exit(pci_info);
 516
 517         pci_dev_put(pci_info->dev);
 518 }
 519
 520 /* PCI Device ID talbe for general EDAC device */
 521 static const struct pci_device_id amd8111_edac_dev_tbl[] = {
 522         {
 523         PCI_VEND_DEV(AMD, 8111_LPC),
 524         .subvendor = PCI_ANY_ID,
 525         .subdevice = PCI_ANY_ID,
 526         .class = 0,
 527         .class_mask = 0,
 528         .driver_data = LPC_BRIDGE,
 529         },
 530         {
 531         0,
 532         }                       /* table is NULL-terminated */
 533 };
 534 MODULE_DEVICE_TABLE(pci, amd8111_edac_dev_tbl);
 535
 536 static struct pci_driver amd8111_edac_dev_driver = {
 537         .name = "AMD8111_EDAC_DEV",
 538         .probe = amd8111_dev_probe,
 539         .remove = amd8111_dev_remove,
 540         .id_table = amd8111_edac_dev_tbl,
 541 };
 542
 543 /* PCI Device ID table for EDAC PCI controller */
 544 static const struct pci_device_id amd8111_edac_pci_tbl[] = {
 545         {
 546         PCI_VEND_DEV(AMD, 8111_PCI),
 547         .subvendor = PCI_ANY_ID,
 548         .subdevice = PCI_ANY_ID,
 549         .class = 0,
 550         .class_mask = 0,
 551         .driver_data = PCI_BRIDGE,
 552         },
 553         {
 554         0,
 555         }                       /* table is NULL-terminated */
 556 };
 557 MODULE_DEVICE_TABLE(pci, amd8111_edac_pci_tbl);
 558
 559 static struct pci_driver amd8111_edac_pci_driver = {
 560         .name = "AMD8111_EDAC_PCI",
 561         .probe = amd8111_pci_probe,
 562         .remove = amd8111_pci_remove,
 563         .id_table = amd8111_edac_pci_tbl,
 564 };
 565
 566 static int __init amd8111_edac_init(void)
 567 {
 568         int val;
 569
 570         printk(KERN_INFO "AMD8111 EDAC driver " AMD8111_EDAC_REVISION "\n");
 571         printk(KERN_INFO "\t(c) 2008 Wind River Systems, Inc.\n");
 572
 573         /* Only POLL mode supported so far */
 574         edac_op_state = EDAC_OPSTATE_POLL;
 575
 576         val = pci_register_driver(&amd8111_edac_dev_driver);
 577         val |= pci_register_driver(&amd8111_edac_pci_driver);
 578
 579         return val;
 580 }
 581
 582 static void __exit amd8111_edac_exit(void)
 583 {
 584         pci_unregister_driver(&amd8111_edac_pci_driver);
 585         pci_unregister_driver(&amd8111_edac_dev_driver);
 586 }
 587
 588
 589 module_init(amd8111_edac_init);
 590 module_exit(amd8111_edac_exit);
 591
 592 MODULE_LICENSE("GPL");
 593 MODULE_AUTHOR("Cao Qingtao <qingtao.cao@windriver.com>\n");
 594 MODULE_DESCRIPTION("AMD8111 HyperTransport I/O Hub EDAC kernel module");