Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Intel e752x Memory Controller kernel module |
| 3 | * (C) 2004 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 e752x_chips" below for supported chipsets |
| 8 | * |
| 9 | * Written by Tom Zimmerman |
| 10 | * |
| 11 | * Contributors: |
| 12 | * Thayne Harbaugh at realmsys.com (?) |
| 13 | * Wang Zhenyu at intel.com |
| 14 | * Dave Jiang at mvista.com |
| 15 | * |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 16 | * $Id: edac_e752x.c,v 1.5.2.11 2005/10/05 00:43:44 dsp_llnl Exp $ |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 17 | * |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | #include <linux/config.h> |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/init.h> |
| 24 | |
| 25 | #include <linux/pci.h> |
| 26 | #include <linux/pci_ids.h> |
| 27 | |
| 28 | #include <linux/slab.h> |
| 29 | |
| 30 | #include "edac_mc.h" |
| 31 | |
| 32 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 33 | #define e752x_printk(level, fmt, arg...) \ |
| 34 | edac_printk(level, "e752x", fmt, ##arg) |
| 35 | |
| 36 | |
| 37 | #define e752x_mc_printk(mci, level, fmt, arg...) \ |
| 38 | edac_mc_chipset_printk(mci, level, "e752x", fmt, ##arg) |
| 39 | |
| 40 | |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 41 | #ifndef PCI_DEVICE_ID_INTEL_7520_0 |
| 42 | #define PCI_DEVICE_ID_INTEL_7520_0 0x3590 |
| 43 | #endif /* PCI_DEVICE_ID_INTEL_7520_0 */ |
| 44 | |
| 45 | #ifndef PCI_DEVICE_ID_INTEL_7520_1_ERR |
| 46 | #define PCI_DEVICE_ID_INTEL_7520_1_ERR 0x3591 |
| 47 | #endif /* PCI_DEVICE_ID_INTEL_7520_1_ERR */ |
| 48 | |
| 49 | #ifndef PCI_DEVICE_ID_INTEL_7525_0 |
| 50 | #define PCI_DEVICE_ID_INTEL_7525_0 0x359E |
| 51 | #endif /* PCI_DEVICE_ID_INTEL_7525_0 */ |
| 52 | |
| 53 | #ifndef PCI_DEVICE_ID_INTEL_7525_1_ERR |
| 54 | #define PCI_DEVICE_ID_INTEL_7525_1_ERR 0x3593 |
| 55 | #endif /* PCI_DEVICE_ID_INTEL_7525_1_ERR */ |
| 56 | |
| 57 | #ifndef PCI_DEVICE_ID_INTEL_7320_0 |
| 58 | #define PCI_DEVICE_ID_INTEL_7320_0 0x3592 |
| 59 | #endif /* PCI_DEVICE_ID_INTEL_7320_0 */ |
| 60 | |
| 61 | #ifndef PCI_DEVICE_ID_INTEL_7320_1_ERR |
| 62 | #define PCI_DEVICE_ID_INTEL_7320_1_ERR 0x3593 |
| 63 | #endif /* PCI_DEVICE_ID_INTEL_7320_1_ERR */ |
| 64 | |
| 65 | #define E752X_NR_CSROWS 8 /* number of csrows */ |
| 66 | |
| 67 | |
| 68 | /* E752X register addresses - device 0 function 0 */ |
| 69 | #define E752X_DRB 0x60 /* DRAM row boundary register (8b) */ |
| 70 | #define E752X_DRA 0x70 /* DRAM row attribute register (8b) */ |
| 71 | /* |
| 72 | * 31:30 Device width row 7 |
| 73 | * 01=x8 10=x4 11=x8 DDR2 |
| 74 | * 27:26 Device width row 6 |
| 75 | * 23:22 Device width row 5 |
| 76 | * 19:20 Device width row 4 |
| 77 | * 15:14 Device width row 3 |
| 78 | * 11:10 Device width row 2 |
| 79 | * 7:6 Device width row 1 |
| 80 | * 3:2 Device width row 0 |
| 81 | */ |
| 82 | #define E752X_DRC 0x7C /* DRAM controller mode reg (32b) */ |
| 83 | /* FIXME:IS THIS RIGHT? */ |
| 84 | /* |
| 85 | * 22 Number channels 0=1,1=2 |
| 86 | * 19:18 DRB Granularity 32/64MB |
| 87 | */ |
| 88 | #define E752X_DRM 0x80 /* Dimm mapping register */ |
| 89 | #define E752X_DDRCSR 0x9A /* DDR control and status reg (16b) */ |
| 90 | /* |
| 91 | * 14:12 1 single A, 2 single B, 3 dual |
| 92 | */ |
| 93 | #define E752X_TOLM 0xC4 /* DRAM top of low memory reg (16b) */ |
| 94 | #define E752X_REMAPBASE 0xC6 /* DRAM remap base address reg (16b) */ |
| 95 | #define E752X_REMAPLIMIT 0xC8 /* DRAM remap limit address reg (16b) */ |
| 96 | #define E752X_REMAPOFFSET 0xCA /* DRAM remap limit offset reg (16b) */ |
| 97 | |
| 98 | /* E752X register addresses - device 0 function 1 */ |
| 99 | #define E752X_FERR_GLOBAL 0x40 /* Global first error register (32b) */ |
| 100 | #define E752X_NERR_GLOBAL 0x44 /* Global next error register (32b) */ |
| 101 | #define E752X_HI_FERR 0x50 /* Hub interface first error reg (8b) */ |
| 102 | #define E752X_HI_NERR 0x52 /* Hub interface next error reg (8b) */ |
| 103 | #define E752X_HI_ERRMASK 0x54 /* Hub interface error mask reg (8b) */ |
| 104 | #define E752X_HI_SMICMD 0x5A /* Hub interface SMI command reg (8b) */ |
| 105 | #define E752X_SYSBUS_FERR 0x60 /* System buss first error reg (16b) */ |
| 106 | #define E752X_SYSBUS_NERR 0x62 /* System buss next error reg (16b) */ |
| 107 | #define E752X_SYSBUS_ERRMASK 0x64 /* System buss error mask reg (16b) */ |
| 108 | #define E752X_SYSBUS_SMICMD 0x6A /* System buss SMI command reg (16b) */ |
| 109 | #define E752X_BUF_FERR 0x70 /* Memory buffer first error reg (8b) */ |
| 110 | #define E752X_BUF_NERR 0x72 /* Memory buffer next error reg (8b) */ |
| 111 | #define E752X_BUF_ERRMASK 0x74 /* Memory buffer error mask reg (8b) */ |
| 112 | #define E752X_BUF_SMICMD 0x7A /* Memory buffer SMI command reg (8b) */ |
| 113 | #define E752X_DRAM_FERR 0x80 /* DRAM first error register (16b) */ |
| 114 | #define E752X_DRAM_NERR 0x82 /* DRAM next error register (16b) */ |
| 115 | #define E752X_DRAM_ERRMASK 0x84 /* DRAM error mask register (8b) */ |
| 116 | #define E752X_DRAM_SMICMD 0x8A /* DRAM SMI command register (8b) */ |
| 117 | #define E752X_DRAM_RETR_ADD 0xAC /* DRAM Retry address register (32b) */ |
| 118 | #define E752X_DRAM_SEC1_ADD 0xA0 /* DRAM first correctable memory */ |
| 119 | /* error address register (32b) */ |
| 120 | /* |
| 121 | * 31 Reserved |
| 122 | * 30:2 CE address (64 byte block 34:6) |
| 123 | * 1 Reserved |
| 124 | * 0 HiLoCS |
| 125 | */ |
| 126 | #define E752X_DRAM_SEC2_ADD 0xC8 /* DRAM first correctable memory */ |
| 127 | /* error address register (32b) */ |
| 128 | /* |
| 129 | * 31 Reserved |
| 130 | * 30:2 CE address (64 byte block 34:6) |
| 131 | * 1 Reserved |
| 132 | * 0 HiLoCS |
| 133 | */ |
| 134 | #define E752X_DRAM_DED_ADD 0xA4 /* DRAM first uncorrectable memory */ |
| 135 | /* error address register (32b) */ |
| 136 | /* |
| 137 | * 31 Reserved |
| 138 | * 30:2 CE address (64 byte block 34:6) |
| 139 | * 1 Reserved |
| 140 | * 0 HiLoCS |
| 141 | */ |
| 142 | #define E752X_DRAM_SCRB_ADD 0xA8 /* DRAM first uncorrectable scrub memory */ |
| 143 | /* error address register (32b) */ |
| 144 | /* |
| 145 | * 31 Reserved |
| 146 | * 30:2 CE address (64 byte block 34:6) |
| 147 | * 1 Reserved |
| 148 | * 0 HiLoCS |
| 149 | */ |
| 150 | #define E752X_DRAM_SEC1_SYNDROME 0xC4 /* DRAM first correctable memory */ |
| 151 | /* error syndrome register (16b) */ |
| 152 | #define E752X_DRAM_SEC2_SYNDROME 0xC6 /* DRAM second correctable memory */ |
| 153 | /* error syndrome register (16b) */ |
| 154 | #define E752X_DEVPRES1 0xF4 /* Device Present 1 register (8b) */ |
| 155 | |
| 156 | /* ICH5R register addresses - device 30 function 0 */ |
| 157 | #define ICH5R_PCI_STAT 0x06 /* PCI status register (16b) */ |
| 158 | #define ICH5R_PCI_2ND_STAT 0x1E /* PCI status secondary reg (16b) */ |
| 159 | #define ICH5R_PCI_BRIDGE_CTL 0x3E /* PCI bridge control register (16b) */ |
| 160 | |
| 161 | enum e752x_chips { |
| 162 | E7520 = 0, |
| 163 | E7525 = 1, |
| 164 | E7320 = 2 |
| 165 | }; |
| 166 | |
| 167 | |
| 168 | struct e752x_pvt { |
| 169 | struct pci_dev *bridge_ck; |
| 170 | struct pci_dev *dev_d0f0; |
| 171 | struct pci_dev *dev_d0f1; |
| 172 | u32 tolm; |
| 173 | u32 remapbase; |
| 174 | u32 remaplimit; |
| 175 | int mc_symmetric; |
| 176 | u8 map[8]; |
| 177 | int map_type; |
| 178 | const struct e752x_dev_info *dev_info; |
| 179 | }; |
| 180 | |
| 181 | |
| 182 | struct e752x_dev_info { |
| 183 | u16 err_dev; |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 184 | u16 ctl_dev; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 185 | const char *ctl_name; |
| 186 | }; |
| 187 | |
| 188 | struct e752x_error_info { |
| 189 | u32 ferr_global; |
| 190 | u32 nerr_global; |
| 191 | u8 hi_ferr; |
| 192 | u8 hi_nerr; |
| 193 | u16 sysbus_ferr; |
| 194 | u16 sysbus_nerr; |
| 195 | u8 buf_ferr; |
| 196 | u8 buf_nerr; |
| 197 | u16 dram_ferr; |
| 198 | u16 dram_nerr; |
| 199 | u32 dram_sec1_add; |
| 200 | u32 dram_sec2_add; |
| 201 | u16 dram_sec1_syndrome; |
| 202 | u16 dram_sec2_syndrome; |
| 203 | u32 dram_ded_add; |
| 204 | u32 dram_scrb_add; |
| 205 | u32 dram_retr_add; |
| 206 | }; |
| 207 | |
| 208 | static const struct e752x_dev_info e752x_devs[] = { |
| 209 | [E7520] = { |
| 210 | .err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR, |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 211 | .ctl_dev = PCI_DEVICE_ID_INTEL_7520_0, |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 212 | .ctl_name = "E7520"}, |
| 213 | [E7525] = { |
| 214 | .err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR, |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 215 | .ctl_dev = PCI_DEVICE_ID_INTEL_7525_0, |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 216 | .ctl_name = "E7525"}, |
| 217 | [E7320] = { |
| 218 | .err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR, |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 219 | .ctl_dev = PCI_DEVICE_ID_INTEL_7320_0, |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 220 | .ctl_name = "E7320"}, |
| 221 | }; |
| 222 | |
| 223 | |
| 224 | static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci, |
| 225 | unsigned long page) |
| 226 | { |
| 227 | u32 remap; |
| 228 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; |
| 229 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 230 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 231 | |
| 232 | if (page < pvt->tolm) |
| 233 | return page; |
| 234 | if ((page >= 0x100000) && (page < pvt->remapbase)) |
| 235 | return page; |
| 236 | remap = (page - pvt->tolm) + pvt->remapbase; |
| 237 | if (remap < pvt->remaplimit) |
| 238 | return remap; |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 239 | e752x_printk(KERN_ERR, "Invalid page %lx - out of range\n", page); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 240 | return pvt->tolm - 1; |
| 241 | } |
| 242 | |
| 243 | static void do_process_ce(struct mem_ctl_info *mci, u16 error_one, |
| 244 | u32 sec1_add, u16 sec1_syndrome) |
| 245 | { |
| 246 | u32 page; |
| 247 | int row; |
| 248 | int channel; |
| 249 | int i; |
| 250 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; |
| 251 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 252 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 253 | |
| 254 | /* convert the addr to 4k page */ |
| 255 | page = sec1_add >> (PAGE_SHIFT - 4); |
| 256 | |
| 257 | /* FIXME - check for -1 */ |
| 258 | if (pvt->mc_symmetric) { |
| 259 | /* chip select are bits 14 & 13 */ |
| 260 | row = ((page >> 1) & 3); |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 261 | e752x_printk(KERN_WARNING, |
| 262 | "Test row %d Table %d %d %d %d %d %d %d %d\n", |
| 263 | row, pvt->map[0], pvt->map[1], pvt->map[2], |
| 264 | pvt->map[3], pvt->map[4], pvt->map[5], |
| 265 | pvt->map[6], pvt->map[7]); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 266 | |
| 267 | /* test for channel remapping */ |
| 268 | for (i = 0; i < 8; i++) { |
| 269 | if (pvt->map[i] == row) |
| 270 | break; |
| 271 | } |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 272 | e752x_printk(KERN_WARNING, "Test computed row %d\n", i); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 273 | if (i < 8) |
| 274 | row = i; |
| 275 | else |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 276 | e752x_mc_printk(mci, KERN_WARNING, |
| 277 | "row %d not found in remap table\n", row); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 278 | } else |
| 279 | row = edac_mc_find_csrow_by_page(mci, page); |
| 280 | /* 0 = channel A, 1 = channel B */ |
| 281 | channel = !(error_one & 1); |
| 282 | |
| 283 | if (!pvt->map_type) |
| 284 | row = 7 - row; |
| 285 | edac_mc_handle_ce(mci, page, 0, sec1_syndrome, row, channel, |
| 286 | "e752x CE"); |
| 287 | } |
| 288 | |
| 289 | |
| 290 | static inline void process_ce(struct mem_ctl_info *mci, u16 error_one, |
| 291 | u32 sec1_add, u16 sec1_syndrome, int *error_found, |
| 292 | int handle_error) |
| 293 | { |
| 294 | *error_found = 1; |
| 295 | |
| 296 | if (handle_error) |
| 297 | do_process_ce(mci, error_one, sec1_add, sec1_syndrome); |
| 298 | } |
| 299 | |
| 300 | static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, u32 ded_add, |
| 301 | u32 scrb_add) |
| 302 | { |
| 303 | u32 error_2b, block_page; |
| 304 | int row; |
| 305 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; |
| 306 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 307 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 308 | |
| 309 | if (error_one & 0x0202) { |
| 310 | error_2b = ded_add; |
| 311 | /* convert to 4k address */ |
| 312 | block_page = error_2b >> (PAGE_SHIFT - 4); |
| 313 | row = pvt->mc_symmetric ? |
| 314 | /* chip select are bits 14 & 13 */ |
| 315 | ((block_page >> 1) & 3) : |
| 316 | edac_mc_find_csrow_by_page(mci, block_page); |
| 317 | edac_mc_handle_ue(mci, block_page, 0, row, |
| 318 | "e752x UE from Read"); |
| 319 | } |
| 320 | if (error_one & 0x0404) { |
| 321 | error_2b = scrb_add; |
| 322 | /* convert to 4k address */ |
| 323 | block_page = error_2b >> (PAGE_SHIFT - 4); |
| 324 | row = pvt->mc_symmetric ? |
| 325 | /* chip select are bits 14 & 13 */ |
| 326 | ((block_page >> 1) & 3) : |
| 327 | edac_mc_find_csrow_by_page(mci, block_page); |
| 328 | edac_mc_handle_ue(mci, block_page, 0, row, |
| 329 | "e752x UE from Scruber"); |
| 330 | } |
| 331 | } |
| 332 | |
| 333 | static inline void process_ue(struct mem_ctl_info *mci, u16 error_one, |
| 334 | u32 ded_add, u32 scrb_add, int *error_found, int handle_error) |
| 335 | { |
| 336 | *error_found = 1; |
| 337 | |
| 338 | if (handle_error) |
| 339 | do_process_ue(mci, error_one, ded_add, scrb_add); |
| 340 | } |
| 341 | |
| 342 | static inline void process_ue_no_info_wr(struct mem_ctl_info *mci, |
| 343 | int *error_found, int handle_error) |
| 344 | { |
| 345 | *error_found = 1; |
| 346 | |
| 347 | if (!handle_error) |
| 348 | return; |
| 349 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 350 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 351 | edac_mc_handle_ue_no_info(mci, "e752x UE log memory write"); |
| 352 | } |
| 353 | |
| 354 | static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error, |
| 355 | u32 retry_add) |
| 356 | { |
| 357 | u32 error_1b, page; |
| 358 | int row; |
| 359 | struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info; |
| 360 | |
| 361 | error_1b = retry_add; |
| 362 | page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ |
| 363 | row = pvt->mc_symmetric ? |
| 364 | ((page >> 1) & 3) : /* chip select are bits 14 & 13 */ |
| 365 | edac_mc_find_csrow_by_page(mci, page); |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 366 | e752x_mc_printk(mci, KERN_WARNING, |
| 367 | "CE page 0x%lx, row %d : Memory read retry\n", |
| 368 | (long unsigned int) page, row); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | static inline void process_ded_retry(struct mem_ctl_info *mci, u16 error, |
| 372 | u32 retry_add, int *error_found, int handle_error) |
| 373 | { |
| 374 | *error_found = 1; |
| 375 | |
| 376 | if (handle_error) |
| 377 | do_process_ded_retry(mci, error, retry_add); |
| 378 | } |
| 379 | |
| 380 | static inline void process_threshold_ce(struct mem_ctl_info *mci, u16 error, |
| 381 | int *error_found, int handle_error) |
| 382 | { |
| 383 | *error_found = 1; |
| 384 | |
| 385 | if (handle_error) |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 386 | e752x_mc_printk(mci, KERN_WARNING, "Memory threshold CE\n"); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 387 | } |
| 388 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 389 | static char *global_message[11] = { |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 390 | "PCI Express C1", "PCI Express C", "PCI Express B1", |
| 391 | "PCI Express B", "PCI Express A1", "PCI Express A", |
| 392 | "DMA Controler", "HUB Interface", "System Bus", |
| 393 | "DRAM Controler", "Internal Buffer" |
| 394 | }; |
| 395 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 396 | static char *fatal_message[2] = { "Non-Fatal ", "Fatal " }; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 397 | |
| 398 | static void do_global_error(int fatal, u32 errors) |
| 399 | { |
| 400 | int i; |
| 401 | |
| 402 | for (i = 0; i < 11; i++) { |
| 403 | if (errors & (1 << i)) |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 404 | e752x_printk(KERN_WARNING, "%sError %s\n", |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 405 | fatal_message[fatal], global_message[i]); |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | static inline void global_error(int fatal, u32 errors, int *error_found, |
| 410 | int handle_error) |
| 411 | { |
| 412 | *error_found = 1; |
| 413 | |
| 414 | if (handle_error) |
| 415 | do_global_error(fatal, errors); |
| 416 | } |
| 417 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 418 | static char *hub_message[7] = { |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 419 | "HI Address or Command Parity", "HI Illegal Access", |
| 420 | "HI Internal Parity", "Out of Range Access", |
| 421 | "HI Data Parity", "Enhanced Config Access", |
| 422 | "Hub Interface Target Abort" |
| 423 | }; |
| 424 | |
| 425 | static void do_hub_error(int fatal, u8 errors) |
| 426 | { |
| 427 | int i; |
| 428 | |
| 429 | for (i = 0; i < 7; i++) { |
| 430 | if (errors & (1 << i)) |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 431 | e752x_printk(KERN_WARNING, "%sError %s\n", |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 432 | fatal_message[fatal], hub_message[i]); |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | static inline void hub_error(int fatal, u8 errors, int *error_found, |
| 437 | int handle_error) |
| 438 | { |
| 439 | *error_found = 1; |
| 440 | |
| 441 | if (handle_error) |
| 442 | do_hub_error(fatal, errors); |
| 443 | } |
| 444 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 445 | static char *membuf_message[4] = { |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 446 | "Internal PMWB to DRAM parity", |
| 447 | "Internal PMWB to System Bus Parity", |
| 448 | "Internal System Bus or IO to PMWB Parity", |
| 449 | "Internal DRAM to PMWB Parity" |
| 450 | }; |
| 451 | |
| 452 | static void do_membuf_error(u8 errors) |
| 453 | { |
| 454 | int i; |
| 455 | |
| 456 | for (i = 0; i < 4; i++) { |
| 457 | if (errors & (1 << i)) |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 458 | e752x_printk(KERN_WARNING, "Non-Fatal Error %s\n", |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 459 | membuf_message[i]); |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | static inline void membuf_error(u8 errors, int *error_found, int handle_error) |
| 464 | { |
| 465 | *error_found = 1; |
| 466 | |
| 467 | if (handle_error) |
| 468 | do_membuf_error(errors); |
| 469 | } |
| 470 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 471 | #if 0 |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 472 | char *sysbus_message[10] = { |
| 473 | "Addr or Request Parity", |
| 474 | "Data Strobe Glitch", |
| 475 | "Addr Strobe Glitch", |
| 476 | "Data Parity", |
| 477 | "Addr Above TOM", |
| 478 | "Non DRAM Lock Error", |
| 479 | "MCERR", "BINIT", |
| 480 | "Memory Parity", |
| 481 | "IO Subsystem Parity" |
| 482 | }; |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 483 | #endif /* 0 */ |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 484 | |
| 485 | static void do_sysbus_error(int fatal, u32 errors) |
| 486 | { |
| 487 | int i; |
| 488 | |
| 489 | for (i = 0; i < 10; i++) { |
| 490 | if (errors & (1 << i)) |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 491 | e752x_printk(KERN_WARNING, "%sError System Bus %s\n", |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 492 | fatal_message[fatal], global_message[i]); |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | static inline void sysbus_error(int fatal, u32 errors, int *error_found, |
| 497 | int handle_error) |
| 498 | { |
| 499 | *error_found = 1; |
| 500 | |
| 501 | if (handle_error) |
| 502 | do_sysbus_error(fatal, errors); |
| 503 | } |
| 504 | |
| 505 | static void e752x_check_hub_interface (struct e752x_error_info *info, |
| 506 | int *error_found, int handle_error) |
| 507 | { |
| 508 | u8 stat8; |
| 509 | |
| 510 | //pci_read_config_byte(dev,E752X_HI_FERR,&stat8); |
| 511 | stat8 = info->hi_ferr; |
| 512 | if(stat8 & 0x7f) { /* Error, so process */ |
| 513 | stat8 &= 0x7f; |
| 514 | if(stat8 & 0x2b) |
| 515 | hub_error(1, stat8 & 0x2b, error_found, handle_error); |
| 516 | if(stat8 & 0x54) |
| 517 | hub_error(0, stat8 & 0x54, error_found, handle_error); |
| 518 | } |
| 519 | //pci_read_config_byte(dev,E752X_HI_NERR,&stat8); |
| 520 | stat8 = info->hi_nerr; |
| 521 | if(stat8 & 0x7f) { /* Error, so process */ |
| 522 | stat8 &= 0x7f; |
| 523 | if (stat8 & 0x2b) |
| 524 | hub_error(1, stat8 & 0x2b, error_found, handle_error); |
| 525 | if(stat8 & 0x54) |
| 526 | hub_error(0, stat8 & 0x54, error_found, handle_error); |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | static void e752x_check_sysbus (struct e752x_error_info *info, int *error_found, |
| 531 | int handle_error) |
| 532 | { |
| 533 | u32 stat32, error32; |
| 534 | |
| 535 | //pci_read_config_dword(dev,E752X_SYSBUS_FERR,&stat32); |
| 536 | stat32 = info->sysbus_ferr + (info->sysbus_nerr << 16); |
| 537 | |
| 538 | if (stat32 == 0) |
| 539 | return; /* no errors */ |
| 540 | |
| 541 | error32 = (stat32 >> 16) & 0x3ff; |
| 542 | stat32 = stat32 & 0x3ff; |
| 543 | if(stat32 & 0x083) |
| 544 | sysbus_error(1, stat32 & 0x083, error_found, handle_error); |
| 545 | if(stat32 & 0x37c) |
| 546 | sysbus_error(0, stat32 & 0x37c, error_found, handle_error); |
| 547 | if(error32 & 0x083) |
| 548 | sysbus_error(1, error32 & 0x083, error_found, handle_error); |
| 549 | if(error32 & 0x37c) |
| 550 | sysbus_error(0, error32 & 0x37c, error_found, handle_error); |
| 551 | } |
| 552 | |
| 553 | static void e752x_check_membuf (struct e752x_error_info *info, int *error_found, |
| 554 | int handle_error) |
| 555 | { |
| 556 | u8 stat8; |
| 557 | |
| 558 | stat8 = info->buf_ferr; |
| 559 | if (stat8 & 0x0f) { /* Error, so process */ |
| 560 | stat8 &= 0x0f; |
| 561 | membuf_error(stat8, error_found, handle_error); |
| 562 | } |
| 563 | stat8 = info->buf_nerr; |
| 564 | if (stat8 & 0x0f) { /* Error, so process */ |
| 565 | stat8 &= 0x0f; |
| 566 | membuf_error(stat8, error_found, handle_error); |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | static void e752x_check_dram (struct mem_ctl_info *mci, |
| 571 | struct e752x_error_info *info, int *error_found, int handle_error) |
| 572 | { |
| 573 | u16 error_one, error_next; |
| 574 | |
| 575 | error_one = info->dram_ferr; |
| 576 | error_next = info->dram_nerr; |
| 577 | |
| 578 | /* decode and report errors */ |
| 579 | if(error_one & 0x0101) /* check first error correctable */ |
| 580 | process_ce(mci, error_one, info->dram_sec1_add, |
| 581 | info->dram_sec1_syndrome, error_found, |
| 582 | handle_error); |
| 583 | |
| 584 | if(error_next & 0x0101) /* check next error correctable */ |
| 585 | process_ce(mci, error_next, info->dram_sec2_add, |
| 586 | info->dram_sec2_syndrome, error_found, |
| 587 | handle_error); |
| 588 | |
| 589 | if(error_one & 0x4040) |
| 590 | process_ue_no_info_wr(mci, error_found, handle_error); |
| 591 | |
| 592 | if(error_next & 0x4040) |
| 593 | process_ue_no_info_wr(mci, error_found, handle_error); |
| 594 | |
| 595 | if(error_one & 0x2020) |
| 596 | process_ded_retry(mci, error_one, info->dram_retr_add, |
| 597 | error_found, handle_error); |
| 598 | |
| 599 | if(error_next & 0x2020) |
| 600 | process_ded_retry(mci, error_next, info->dram_retr_add, |
| 601 | error_found, handle_error); |
| 602 | |
| 603 | if(error_one & 0x0808) |
| 604 | process_threshold_ce(mci, error_one, error_found, |
| 605 | handle_error); |
| 606 | |
| 607 | if(error_next & 0x0808) |
| 608 | process_threshold_ce(mci, error_next, error_found, |
| 609 | handle_error); |
| 610 | |
| 611 | if(error_one & 0x0606) |
| 612 | process_ue(mci, error_one, info->dram_ded_add, |
| 613 | info->dram_scrb_add, error_found, handle_error); |
| 614 | |
| 615 | if(error_next & 0x0606) |
| 616 | process_ue(mci, error_next, info->dram_ded_add, |
| 617 | info->dram_scrb_add, error_found, handle_error); |
| 618 | } |
| 619 | |
| 620 | static void e752x_get_error_info (struct mem_ctl_info *mci, |
| 621 | struct e752x_error_info *info) |
| 622 | { |
| 623 | struct pci_dev *dev; |
| 624 | struct e752x_pvt *pvt; |
| 625 | |
| 626 | memset(info, 0, sizeof(*info)); |
| 627 | pvt = (struct e752x_pvt *) mci->pvt_info; |
| 628 | dev = pvt->dev_d0f1; |
| 629 | |
| 630 | pci_read_config_dword(dev, E752X_FERR_GLOBAL, &info->ferr_global); |
| 631 | |
| 632 | if (info->ferr_global) { |
| 633 | pci_read_config_byte(dev, E752X_HI_FERR, &info->hi_ferr); |
| 634 | pci_read_config_word(dev, E752X_SYSBUS_FERR, |
| 635 | &info->sysbus_ferr); |
| 636 | pci_read_config_byte(dev, E752X_BUF_FERR, &info->buf_ferr); |
| 637 | pci_read_config_word(dev, E752X_DRAM_FERR, |
| 638 | &info->dram_ferr); |
| 639 | pci_read_config_dword(dev, E752X_DRAM_SEC1_ADD, |
| 640 | &info->dram_sec1_add); |
| 641 | pci_read_config_word(dev, E752X_DRAM_SEC1_SYNDROME, |
| 642 | &info->dram_sec1_syndrome); |
| 643 | pci_read_config_dword(dev, E752X_DRAM_DED_ADD, |
| 644 | &info->dram_ded_add); |
| 645 | pci_read_config_dword(dev, E752X_DRAM_SCRB_ADD, |
| 646 | &info->dram_scrb_add); |
| 647 | pci_read_config_dword(dev, E752X_DRAM_RETR_ADD, |
| 648 | &info->dram_retr_add); |
| 649 | |
| 650 | if (info->hi_ferr & 0x7f) |
| 651 | pci_write_config_byte(dev, E752X_HI_FERR, |
| 652 | info->hi_ferr); |
| 653 | |
| 654 | if (info->sysbus_ferr) |
| 655 | pci_write_config_word(dev, E752X_SYSBUS_FERR, |
| 656 | info->sysbus_ferr); |
| 657 | |
| 658 | if (info->buf_ferr & 0x0f) |
| 659 | pci_write_config_byte(dev, E752X_BUF_FERR, |
| 660 | info->buf_ferr); |
| 661 | |
| 662 | if (info->dram_ferr) |
| 663 | pci_write_bits16(pvt->bridge_ck, E752X_DRAM_FERR, |
| 664 | info->dram_ferr, info->dram_ferr); |
| 665 | |
| 666 | pci_write_config_dword(dev, E752X_FERR_GLOBAL, |
| 667 | info->ferr_global); |
| 668 | } |
| 669 | |
| 670 | pci_read_config_dword(dev, E752X_NERR_GLOBAL, &info->nerr_global); |
| 671 | |
| 672 | if (info->nerr_global) { |
| 673 | pci_read_config_byte(dev, E752X_HI_NERR, &info->hi_nerr); |
| 674 | pci_read_config_word(dev, E752X_SYSBUS_NERR, |
| 675 | &info->sysbus_nerr); |
| 676 | pci_read_config_byte(dev, E752X_BUF_NERR, &info->buf_nerr); |
| 677 | pci_read_config_word(dev, E752X_DRAM_NERR, |
| 678 | &info->dram_nerr); |
| 679 | pci_read_config_dword(dev, E752X_DRAM_SEC2_ADD, |
| 680 | &info->dram_sec2_add); |
| 681 | pci_read_config_word(dev, E752X_DRAM_SEC2_SYNDROME, |
| 682 | &info->dram_sec2_syndrome); |
| 683 | |
| 684 | if (info->hi_nerr & 0x7f) |
| 685 | pci_write_config_byte(dev, E752X_HI_NERR, |
| 686 | info->hi_nerr); |
| 687 | |
| 688 | if (info->sysbus_nerr) |
| 689 | pci_write_config_word(dev, E752X_SYSBUS_NERR, |
| 690 | info->sysbus_nerr); |
| 691 | |
| 692 | if (info->buf_nerr & 0x0f) |
| 693 | pci_write_config_byte(dev, E752X_BUF_NERR, |
| 694 | info->buf_nerr); |
| 695 | |
| 696 | if (info->dram_nerr) |
| 697 | pci_write_bits16(pvt->bridge_ck, E752X_DRAM_NERR, |
| 698 | info->dram_nerr, info->dram_nerr); |
| 699 | |
| 700 | pci_write_config_dword(dev, E752X_NERR_GLOBAL, |
| 701 | info->nerr_global); |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | static int e752x_process_error_info (struct mem_ctl_info *mci, |
| 706 | struct e752x_error_info *info, int handle_errors) |
| 707 | { |
| 708 | u32 error32, stat32; |
| 709 | int error_found; |
| 710 | |
| 711 | error_found = 0; |
| 712 | error32 = (info->ferr_global >> 18) & 0x3ff; |
| 713 | stat32 = (info->ferr_global >> 4) & 0x7ff; |
| 714 | |
| 715 | if (error32) |
| 716 | global_error(1, error32, &error_found, handle_errors); |
| 717 | |
| 718 | if (stat32) |
| 719 | global_error(0, stat32, &error_found, handle_errors); |
| 720 | |
| 721 | error32 = (info->nerr_global >> 18) & 0x3ff; |
| 722 | stat32 = (info->nerr_global >> 4) & 0x7ff; |
| 723 | |
| 724 | if (error32) |
| 725 | global_error(1, error32, &error_found, handle_errors); |
| 726 | |
| 727 | if (stat32) |
| 728 | global_error(0, stat32, &error_found, handle_errors); |
| 729 | |
| 730 | e752x_check_hub_interface(info, &error_found, handle_errors); |
| 731 | e752x_check_sysbus(info, &error_found, handle_errors); |
| 732 | e752x_check_membuf(info, &error_found, handle_errors); |
| 733 | e752x_check_dram(mci, info, &error_found, handle_errors); |
| 734 | return error_found; |
| 735 | } |
| 736 | |
| 737 | static void e752x_check(struct mem_ctl_info *mci) |
| 738 | { |
| 739 | struct e752x_error_info info; |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 740 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 741 | e752x_get_error_info(mci, &info); |
| 742 | e752x_process_error_info(mci, &info, 1); |
| 743 | } |
| 744 | |
| 745 | static int e752x_probe1(struct pci_dev *pdev, int dev_idx) |
| 746 | { |
| 747 | int rc = -ENODEV; |
| 748 | int index; |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 749 | u16 pci_data; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 750 | u8 stat8; |
| 751 | struct mem_ctl_info *mci = NULL; |
| 752 | struct e752x_pvt *pvt = NULL; |
| 753 | u16 ddrcsr; |
| 754 | u32 drc; |
| 755 | int drc_chan; /* Number of channels 0=1chan,1=2chan */ |
| 756 | int drc_drbg; /* DRB granularity 0=64mb,1=128mb */ |
| 757 | int drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */ |
| 758 | u32 dra; |
| 759 | unsigned long last_cumul_size; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 760 | struct pci_dev *dev = NULL; |
Dave Peterson | 749ede5 | 2006-03-26 01:38:45 -0800 | [diff] [blame^] | 761 | struct e752x_error_info discard; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 762 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 763 | debugf0("%s(): mci\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 764 | debugf0("Starting Probe1\n"); |
| 765 | |
| 766 | /* enable device 0 function 1 */ |
| 767 | pci_read_config_byte(pdev, E752X_DEVPRES1, &stat8); |
| 768 | stat8 |= (1 << 5); |
| 769 | pci_write_config_byte(pdev, E752X_DEVPRES1, stat8); |
| 770 | |
| 771 | /* need to find out the number of channels */ |
| 772 | pci_read_config_dword(pdev, E752X_DRC, &drc); |
| 773 | pci_read_config_word(pdev, E752X_DDRCSR, &ddrcsr); |
| 774 | /* FIXME: should check >>12 or 0xf, true for all? */ |
| 775 | /* Dual channel = 1, Single channel = 0 */ |
| 776 | drc_chan = (((ddrcsr >> 12) & 3) == 3); |
| 777 | drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */ |
| 778 | drc_ddim = (drc >> 20) & 0x3; |
| 779 | |
| 780 | mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1); |
| 781 | |
| 782 | if (mci == NULL) { |
| 783 | rc = -ENOMEM; |
| 784 | goto fail; |
| 785 | } |
| 786 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 787 | debugf3("%s(): init mci\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 788 | |
| 789 | mci->mtype_cap = MEM_FLAG_RDDR; |
| 790 | mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED | |
| 791 | EDAC_FLAG_S4ECD4ED; |
| 792 | /* FIXME - what if different memory types are in different csrows? */ |
Dave Peterson | 680cbbb | 2006-03-26 01:38:41 -0800 | [diff] [blame] | 793 | mci->mod_name = EDAC_MOD_STR; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 794 | mci->mod_ver = "$Revision: 1.5.2.11 $"; |
| 795 | mci->pdev = pdev; |
| 796 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 797 | debugf3("%s(): init pvt\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 798 | pvt = (struct e752x_pvt *) mci->pvt_info; |
| 799 | pvt->dev_info = &e752x_devs[dev_idx]; |
| 800 | pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, |
| 801 | pvt->dev_info->err_dev, |
| 802 | pvt->bridge_ck); |
| 803 | if (pvt->bridge_ck == NULL) |
| 804 | pvt->bridge_ck = pci_scan_single_device(pdev->bus, |
| 805 | PCI_DEVFN(0, 1)); |
| 806 | if (pvt->bridge_ck == NULL) { |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 807 | e752x_printk(KERN_ERR, "error reporting device not found:" |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 808 | "vendor %x device 0x%x (broken BIOS?)\n", |
| 809 | PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev); |
| 810 | goto fail; |
| 811 | } |
| 812 | pvt->mc_symmetric = ((ddrcsr & 0x10) != 0); |
| 813 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 814 | debugf3("%s(): more mci init\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 815 | mci->ctl_name = pvt->dev_info->ctl_name; |
| 816 | mci->edac_check = e752x_check; |
| 817 | mci->ctl_page_to_phys = ctl_page_to_phys; |
| 818 | |
| 819 | /* find out the device types */ |
| 820 | pci_read_config_dword(pdev, E752X_DRA, &dra); |
| 821 | |
| 822 | /* |
| 823 | * The dram row boundary (DRB) reg values are boundary address for |
| 824 | * each DRAM row with a granularity of 64 or 128MB (single/dual |
| 825 | * channel operation). DRB regs are cumulative; therefore DRB7 will |
| 826 | * contain the total memory contained in all eight rows. |
| 827 | */ |
| 828 | for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) { |
| 829 | u8 value; |
| 830 | u32 cumul_size; |
| 831 | /* mem_dev 0=x8, 1=x4 */ |
| 832 | int mem_dev = (dra >> (index * 4 + 2)) & 0x3; |
| 833 | struct csrow_info *csrow = &mci->csrows[index]; |
| 834 | |
| 835 | mem_dev = (mem_dev == 2); |
| 836 | pci_read_config_byte(mci->pdev, E752X_DRB + index, &value); |
| 837 | /* convert a 128 or 64 MiB DRB to a page size. */ |
| 838 | cumul_size = value << (25 + drc_drbg - PAGE_SHIFT); |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 839 | debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index, |
| 840 | cumul_size); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 841 | if (cumul_size == last_cumul_size) |
| 842 | continue; /* not populated */ |
| 843 | |
| 844 | csrow->first_page = last_cumul_size; |
| 845 | csrow->last_page = cumul_size - 1; |
| 846 | csrow->nr_pages = cumul_size - last_cumul_size; |
| 847 | last_cumul_size = cumul_size; |
| 848 | csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */ |
| 849 | csrow->mtype = MEM_RDDR; /* only one type supported */ |
| 850 | csrow->dtype = mem_dev ? DEV_X4 : DEV_X8; |
| 851 | |
| 852 | /* |
| 853 | * if single channel or x8 devices then SECDED |
| 854 | * if dual channel and x4 then S4ECD4ED |
| 855 | */ |
| 856 | if (drc_ddim) { |
| 857 | if (drc_chan && mem_dev) { |
| 858 | csrow->edac_mode = EDAC_S4ECD4ED; |
| 859 | mci->edac_cap |= EDAC_FLAG_S4ECD4ED; |
| 860 | } else { |
| 861 | csrow->edac_mode = EDAC_SECDED; |
| 862 | mci->edac_cap |= EDAC_FLAG_SECDED; |
| 863 | } |
| 864 | } else |
| 865 | csrow->edac_mode = EDAC_NONE; |
| 866 | } |
| 867 | |
| 868 | /* Fill in the memory map table */ |
| 869 | { |
| 870 | u8 value; |
| 871 | u8 last = 0; |
| 872 | u8 row = 0; |
| 873 | for (index = 0; index < 8; index += 2) { |
| 874 | |
| 875 | pci_read_config_byte(mci->pdev, E752X_DRB + index, |
| 876 | &value); |
| 877 | /* test if there is a dimm in this slot */ |
| 878 | if (value == last) { |
| 879 | /* no dimm in the slot, so flag it as empty */ |
| 880 | pvt->map[index] = 0xff; |
| 881 | pvt->map[index + 1] = 0xff; |
| 882 | } else { /* there is a dimm in the slot */ |
| 883 | pvt->map[index] = row; |
| 884 | row++; |
| 885 | last = value; |
| 886 | /* test the next value to see if the dimm is |
| 887 | double sided */ |
| 888 | pci_read_config_byte(mci->pdev, |
| 889 | E752X_DRB + index + 1, |
| 890 | &value); |
| 891 | pvt->map[index + 1] = (value == last) ? |
| 892 | 0xff : /* the dimm is single sided, |
| 893 | so flag as empty */ |
| 894 | row; /* this is a double sided dimm |
| 895 | to save the next row # */ |
| 896 | row++; |
| 897 | last = value; |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | /* set the map type. 1 = normal, 0 = reversed */ |
| 903 | pci_read_config_byte(mci->pdev, E752X_DRM, &stat8); |
| 904 | pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f)); |
| 905 | |
| 906 | mci->edac_cap |= EDAC_FLAG_NONE; |
| 907 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 908 | debugf3("%s(): tolm, remapbase, remaplimit\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 909 | /* load the top of low memory, remap base, and remap limit vars */ |
| 910 | pci_read_config_word(mci->pdev, E752X_TOLM, &pci_data); |
| 911 | pvt->tolm = ((u32) pci_data) << 4; |
| 912 | pci_read_config_word(mci->pdev, E752X_REMAPBASE, &pci_data); |
| 913 | pvt->remapbase = ((u32) pci_data) << 14; |
| 914 | pci_read_config_word(mci->pdev, E752X_REMAPLIMIT, &pci_data); |
| 915 | pvt->remaplimit = ((u32) pci_data) << 14; |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 916 | e752x_printk(KERN_INFO, |
| 917 | "tolm = %x, remapbase = %x, remaplimit = %x\n", |
| 918 | pvt->tolm, pvt->remapbase, pvt->remaplimit); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 919 | |
| 920 | if (edac_mc_add_mc(mci)) { |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 921 | debugf3("%s(): failed edac_mc_add_mc()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 922 | goto fail; |
| 923 | } |
| 924 | |
Dave Peterson | 3847bcc | 2006-03-26 01:38:42 -0800 | [diff] [blame] | 925 | dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev, |
| 926 | NULL); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 927 | pvt->dev_d0f0 = dev; |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 928 | /* find the error reporting device and clear errors */ |
| 929 | dev = pvt->dev_d0f1 = pci_dev_get(pvt->bridge_ck); |
| 930 | /* Turn off error disable & SMI in case the BIOS turned it on */ |
| 931 | pci_write_config_byte(dev, E752X_HI_ERRMASK, 0x00); |
| 932 | pci_write_config_byte(dev, E752X_HI_SMICMD, 0x00); |
| 933 | pci_write_config_word(dev, E752X_SYSBUS_ERRMASK, 0x00); |
| 934 | pci_write_config_word(dev, E752X_SYSBUS_SMICMD, 0x00); |
| 935 | pci_write_config_byte(dev, E752X_BUF_ERRMASK, 0x00); |
| 936 | pci_write_config_byte(dev, E752X_BUF_SMICMD, 0x00); |
| 937 | pci_write_config_byte(dev, E752X_DRAM_ERRMASK, 0x00); |
| 938 | pci_write_config_byte(dev, E752X_DRAM_SMICMD, 0x00); |
| 939 | /* clear other MCH errors */ |
Dave Peterson | 749ede5 | 2006-03-26 01:38:45 -0800 | [diff] [blame^] | 940 | e752x_get_error_info(mci, &discard); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 941 | |
| 942 | /* get this far and it's successful */ |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 943 | debugf3("%s(): success\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 944 | return 0; |
| 945 | |
| 946 | fail: |
| 947 | if (mci) { |
| 948 | if (pvt->dev_d0f0) |
| 949 | pci_dev_put(pvt->dev_d0f0); |
| 950 | if (pvt->dev_d0f1) |
| 951 | pci_dev_put(pvt->dev_d0f1); |
| 952 | if (pvt->bridge_ck) |
| 953 | pci_dev_put(pvt->bridge_ck); |
| 954 | edac_mc_free(mci); |
| 955 | } |
| 956 | return rc; |
| 957 | } |
| 958 | |
| 959 | /* returns count (>= 0), or negative on error */ |
| 960 | static int __devinit e752x_init_one(struct pci_dev *pdev, |
| 961 | const struct pci_device_id *ent) |
| 962 | { |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 963 | debugf0("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 964 | |
| 965 | /* wake up and enable device */ |
| 966 | if(pci_enable_device(pdev) < 0) |
| 967 | return -EIO; |
| 968 | return e752x_probe1(pdev, ent->driver_data); |
| 969 | } |
| 970 | |
| 971 | |
| 972 | static void __devexit e752x_remove_one(struct pci_dev *pdev) |
| 973 | { |
| 974 | struct mem_ctl_info *mci; |
| 975 | struct e752x_pvt *pvt; |
| 976 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 977 | debugf0("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 978 | |
| 979 | if ((mci = edac_mc_find_mci_by_pdev(pdev)) == NULL) |
| 980 | return; |
| 981 | |
| 982 | if (edac_mc_del_mc(mci)) |
| 983 | return; |
| 984 | |
| 985 | pvt = (struct e752x_pvt *) mci->pvt_info; |
| 986 | pci_dev_put(pvt->dev_d0f0); |
| 987 | pci_dev_put(pvt->dev_d0f1); |
| 988 | pci_dev_put(pvt->bridge_ck); |
| 989 | edac_mc_free(mci); |
| 990 | } |
| 991 | |
| 992 | |
| 993 | static const struct pci_device_id e752x_pci_tbl[] __devinitdata = { |
| 994 | {PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, |
| 995 | E7520}, |
| 996 | {PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, |
| 997 | E7525}, |
| 998 | {PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0, |
| 999 | E7320}, |
| 1000 | {0,} /* 0 terminated list. */ |
| 1001 | }; |
| 1002 | |
| 1003 | MODULE_DEVICE_TABLE(pci, e752x_pci_tbl); |
| 1004 | |
| 1005 | |
| 1006 | static struct pci_driver e752x_driver = { |
Dave Peterson | 680cbbb | 2006-03-26 01:38:41 -0800 | [diff] [blame] | 1007 | .name = EDAC_MOD_STR, |
Randy Dunlap | 0d38b04 | 2006-02-03 03:04:24 -0800 | [diff] [blame] | 1008 | .probe = e752x_init_one, |
| 1009 | .remove = __devexit_p(e752x_remove_one), |
| 1010 | .id_table = e752x_pci_tbl, |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 1011 | }; |
| 1012 | |
| 1013 | |
Alan Cox | da9bb1d | 2006-01-18 17:44:13 -0800 | [diff] [blame] | 1014 | static int __init e752x_init(void) |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 1015 | { |
| 1016 | int pci_rc; |
| 1017 | |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 1018 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 1019 | pci_rc = pci_register_driver(&e752x_driver); |
| 1020 | return (pci_rc < 0) ? pci_rc : 0; |
| 1021 | } |
| 1022 | |
| 1023 | |
| 1024 | static void __exit e752x_exit(void) |
| 1025 | { |
Dave Peterson | 537fba2 | 2006-03-26 01:38:40 -0800 | [diff] [blame] | 1026 | debugf3("%s()\n", __func__); |
Alan Cox | 806c35f | 2006-01-18 17:44:08 -0800 | [diff] [blame] | 1027 | pci_unregister_driver(&e752x_driver); |
| 1028 | } |
| 1029 | |
| 1030 | |
| 1031 | module_init(e752x_init); |
| 1032 | module_exit(e752x_exit); |
| 1033 | |
| 1034 | MODULE_LICENSE("GPL"); |
| 1035 | MODULE_AUTHOR("Linux Networx (http://lnxi.com) Tom Zimmerman\n"); |
| 1036 | MODULE_DESCRIPTION("MC support for Intel e752x memory controllers"); |