Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Intel 5000(P/V/X) class Memory Controllers kernel module |
| 3 | * |
| 4 | * This file may be distributed under the terms of the |
| 5 | * GNU General Public License. |
| 6 | * |
| 7 | * Written by Douglas Thompson Linux Networx (http://lnxi.com) |
| 8 | * norsk5@xmission.com |
| 9 | * |
| 10 | * This module is based on the following document: |
| 11 | * |
| 12 | * Intel 5000X Chipset Memory Controller Hub (MCH) - Datasheet |
| 13 | * http://developer.intel.com/design/chipsets/datashts/313070.htm |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/pci.h> |
| 20 | #include <linux/pci_ids.h> |
| 21 | #include <linux/slab.h> |
Dave Jiang | c0d1217 | 2007-07-19 01:49:46 -0700 | [diff] [blame] | 22 | #include <linux/edac.h> |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 23 | #include <asm/mmzone.h> |
| 24 | |
Douglas Thompson | 20bcb7a | 2007-07-19 01:49:47 -0700 | [diff] [blame] | 25 | #include "edac_core.h" |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 26 | |
| 27 | /* |
| 28 | * Alter this version for the I5000 module when modifications are made |
| 29 | */ |
Douglas Thompson | 20bcb7a | 2007-07-19 01:49:47 -0700 | [diff] [blame] | 30 | #define I5000_REVISION " Ver: 2.0.12 " __DATE__ |
Dave Jiang | 456a2f9 | 2007-07-19 01:50:10 -0700 | [diff] [blame] | 31 | #define EDAC_MOD_STR "i5000_edac" |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 32 | |
| 33 | #define i5000_printk(level, fmt, arg...) \ |
| 34 | edac_printk(level, "i5000", fmt, ##arg) |
| 35 | |
| 36 | #define i5000_mc_printk(mci, level, fmt, arg...) \ |
| 37 | edac_mc_chipset_printk(mci, level, "i5000", fmt, ##arg) |
| 38 | |
| 39 | #ifndef PCI_DEVICE_ID_INTEL_FBD_0 |
| 40 | #define PCI_DEVICE_ID_INTEL_FBD_0 0x25F5 |
| 41 | #endif |
| 42 | #ifndef PCI_DEVICE_ID_INTEL_FBD_1 |
| 43 | #define PCI_DEVICE_ID_INTEL_FBD_1 0x25F6 |
| 44 | #endif |
| 45 | |
| 46 | /* Device 16, |
| 47 | * Function 0: System Address |
| 48 | * Function 1: Memory Branch Map, Control, Errors Register |
| 49 | * Function 2: FSB Error Registers |
| 50 | * |
| 51 | * All 3 functions of Device 16 (0,1,2) share the SAME DID |
| 52 | */ |
| 53 | #define PCI_DEVICE_ID_INTEL_I5000_DEV16 0x25F0 |
| 54 | |
| 55 | /* OFFSETS for Function 0 */ |
| 56 | |
| 57 | /* OFFSETS for Function 1 */ |
| 58 | #define AMBASE 0x48 |
| 59 | #define MAXCH 0x56 |
| 60 | #define MAXDIMMPERCH 0x57 |
| 61 | #define TOLM 0x6C |
| 62 | #define REDMEMB 0x7C |
| 63 | #define RED_ECC_LOCATOR(x) ((x) & 0x3FFFF) |
| 64 | #define REC_ECC_LOCATOR_EVEN(x) ((x) & 0x001FF) |
| 65 | #define REC_ECC_LOCATOR_ODD(x) ((x) & 0x3FE00) |
| 66 | #define MIR0 0x80 |
| 67 | #define MIR1 0x84 |
| 68 | #define MIR2 0x88 |
| 69 | #define AMIR0 0x8C |
| 70 | #define AMIR1 0x90 |
| 71 | #define AMIR2 0x94 |
| 72 | |
| 73 | #define FERR_FAT_FBD 0x98 |
| 74 | #define NERR_FAT_FBD 0x9C |
| 75 | #define EXTRACT_FBDCHAN_INDX(x) (((x)>>28) & 0x3) |
| 76 | #define FERR_FAT_FBDCHAN 0x30000000 |
| 77 | #define FERR_FAT_M3ERR 0x00000004 |
| 78 | #define FERR_FAT_M2ERR 0x00000002 |
| 79 | #define FERR_FAT_M1ERR 0x00000001 |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 80 | #define FERR_FAT_MASK (FERR_FAT_M1ERR | \ |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 81 | FERR_FAT_M2ERR | \ |
| 82 | FERR_FAT_M3ERR) |
| 83 | |
| 84 | #define FERR_NF_FBD 0xA0 |
| 85 | |
| 86 | /* Thermal and SPD or BFD errors */ |
| 87 | #define FERR_NF_M28ERR 0x01000000 |
| 88 | #define FERR_NF_M27ERR 0x00800000 |
| 89 | #define FERR_NF_M26ERR 0x00400000 |
| 90 | #define FERR_NF_M25ERR 0x00200000 |
| 91 | #define FERR_NF_M24ERR 0x00100000 |
| 92 | #define FERR_NF_M23ERR 0x00080000 |
| 93 | #define FERR_NF_M22ERR 0x00040000 |
| 94 | #define FERR_NF_M21ERR 0x00020000 |
| 95 | |
| 96 | /* Correctable errors */ |
| 97 | #define FERR_NF_M20ERR 0x00010000 |
| 98 | #define FERR_NF_M19ERR 0x00008000 |
| 99 | #define FERR_NF_M18ERR 0x00004000 |
| 100 | #define FERR_NF_M17ERR 0x00002000 |
| 101 | |
| 102 | /* Non-Retry or redundant Retry errors */ |
| 103 | #define FERR_NF_M16ERR 0x00001000 |
| 104 | #define FERR_NF_M15ERR 0x00000800 |
| 105 | #define FERR_NF_M14ERR 0x00000400 |
| 106 | #define FERR_NF_M13ERR 0x00000200 |
| 107 | |
| 108 | /* Uncorrectable errors */ |
| 109 | #define FERR_NF_M12ERR 0x00000100 |
| 110 | #define FERR_NF_M11ERR 0x00000080 |
| 111 | #define FERR_NF_M10ERR 0x00000040 |
| 112 | #define FERR_NF_M9ERR 0x00000020 |
| 113 | #define FERR_NF_M8ERR 0x00000010 |
| 114 | #define FERR_NF_M7ERR 0x00000008 |
| 115 | #define FERR_NF_M6ERR 0x00000004 |
| 116 | #define FERR_NF_M5ERR 0x00000002 |
| 117 | #define FERR_NF_M4ERR 0x00000001 |
| 118 | |
| 119 | #define FERR_NF_UNCORRECTABLE (FERR_NF_M12ERR | \ |
| 120 | FERR_NF_M11ERR | \ |
| 121 | FERR_NF_M10ERR | \ |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 122 | FERR_NF_M8ERR | \ |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 123 | FERR_NF_M7ERR | \ |
| 124 | FERR_NF_M6ERR | \ |
| 125 | FERR_NF_M5ERR | \ |
| 126 | FERR_NF_M4ERR) |
| 127 | #define FERR_NF_CORRECTABLE (FERR_NF_M20ERR | \ |
| 128 | FERR_NF_M19ERR | \ |
| 129 | FERR_NF_M18ERR | \ |
| 130 | FERR_NF_M17ERR) |
| 131 | #define FERR_NF_DIMM_SPARE (FERR_NF_M27ERR | \ |
| 132 | FERR_NF_M28ERR) |
| 133 | #define FERR_NF_THERMAL (FERR_NF_M26ERR | \ |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 134 | FERR_NF_M25ERR | \ |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 135 | FERR_NF_M24ERR | \ |
| 136 | FERR_NF_M23ERR) |
| 137 | #define FERR_NF_SPD_PROTOCOL (FERR_NF_M22ERR) |
| 138 | #define FERR_NF_NORTH_CRC (FERR_NF_M21ERR) |
| 139 | #define FERR_NF_NON_RETRY (FERR_NF_M13ERR | \ |
| 140 | FERR_NF_M14ERR | \ |
| 141 | FERR_NF_M15ERR) |
| 142 | |
| 143 | #define NERR_NF_FBD 0xA4 |
| 144 | #define FERR_NF_MASK (FERR_NF_UNCORRECTABLE | \ |
| 145 | FERR_NF_CORRECTABLE | \ |
| 146 | FERR_NF_DIMM_SPARE | \ |
| 147 | FERR_NF_THERMAL | \ |
| 148 | FERR_NF_SPD_PROTOCOL | \ |
| 149 | FERR_NF_NORTH_CRC | \ |
| 150 | FERR_NF_NON_RETRY) |
| 151 | |
| 152 | #define EMASK_FBD 0xA8 |
| 153 | #define EMASK_FBD_M28ERR 0x08000000 |
| 154 | #define EMASK_FBD_M27ERR 0x04000000 |
| 155 | #define EMASK_FBD_M26ERR 0x02000000 |
| 156 | #define EMASK_FBD_M25ERR 0x01000000 |
| 157 | #define EMASK_FBD_M24ERR 0x00800000 |
| 158 | #define EMASK_FBD_M23ERR 0x00400000 |
| 159 | #define EMASK_FBD_M22ERR 0x00200000 |
| 160 | #define EMASK_FBD_M21ERR 0x00100000 |
| 161 | #define EMASK_FBD_M20ERR 0x00080000 |
| 162 | #define EMASK_FBD_M19ERR 0x00040000 |
| 163 | #define EMASK_FBD_M18ERR 0x00020000 |
| 164 | #define EMASK_FBD_M17ERR 0x00010000 |
| 165 | |
| 166 | #define EMASK_FBD_M15ERR 0x00004000 |
| 167 | #define EMASK_FBD_M14ERR 0x00002000 |
| 168 | #define EMASK_FBD_M13ERR 0x00001000 |
| 169 | #define EMASK_FBD_M12ERR 0x00000800 |
| 170 | #define EMASK_FBD_M11ERR 0x00000400 |
| 171 | #define EMASK_FBD_M10ERR 0x00000200 |
| 172 | #define EMASK_FBD_M9ERR 0x00000100 |
| 173 | #define EMASK_FBD_M8ERR 0x00000080 |
| 174 | #define EMASK_FBD_M7ERR 0x00000040 |
| 175 | #define EMASK_FBD_M6ERR 0x00000020 |
| 176 | #define EMASK_FBD_M5ERR 0x00000010 |
| 177 | #define EMASK_FBD_M4ERR 0x00000008 |
| 178 | #define EMASK_FBD_M3ERR 0x00000004 |
| 179 | #define EMASK_FBD_M2ERR 0x00000002 |
| 180 | #define EMASK_FBD_M1ERR 0x00000001 |
| 181 | |
| 182 | #define ENABLE_EMASK_FBD_FATAL_ERRORS (EMASK_FBD_M1ERR | \ |
| 183 | EMASK_FBD_M2ERR | \ |
| 184 | EMASK_FBD_M3ERR) |
| 185 | |
| 186 | #define ENABLE_EMASK_FBD_UNCORRECTABLE (EMASK_FBD_M4ERR | \ |
| 187 | EMASK_FBD_M5ERR | \ |
| 188 | EMASK_FBD_M6ERR | \ |
| 189 | EMASK_FBD_M7ERR | \ |
| 190 | EMASK_FBD_M8ERR | \ |
| 191 | EMASK_FBD_M9ERR | \ |
| 192 | EMASK_FBD_M10ERR | \ |
| 193 | EMASK_FBD_M11ERR | \ |
| 194 | EMASK_FBD_M12ERR) |
| 195 | #define ENABLE_EMASK_FBD_CORRECTABLE (EMASK_FBD_M17ERR | \ |
| 196 | EMASK_FBD_M18ERR | \ |
| 197 | EMASK_FBD_M19ERR | \ |
| 198 | EMASK_FBD_M20ERR) |
| 199 | #define ENABLE_EMASK_FBD_DIMM_SPARE (EMASK_FBD_M27ERR | \ |
| 200 | EMASK_FBD_M28ERR) |
| 201 | #define ENABLE_EMASK_FBD_THERMALS (EMASK_FBD_M26ERR | \ |
| 202 | EMASK_FBD_M25ERR | \ |
| 203 | EMASK_FBD_M24ERR | \ |
| 204 | EMASK_FBD_M23ERR) |
| 205 | #define ENABLE_EMASK_FBD_SPD_PROTOCOL (EMASK_FBD_M22ERR) |
| 206 | #define ENABLE_EMASK_FBD_NORTH_CRC (EMASK_FBD_M21ERR) |
| 207 | #define ENABLE_EMASK_FBD_NON_RETRY (EMASK_FBD_M15ERR | \ |
| 208 | EMASK_FBD_M14ERR | \ |
| 209 | EMASK_FBD_M13ERR) |
| 210 | |
| 211 | #define ENABLE_EMASK_ALL (ENABLE_EMASK_FBD_NON_RETRY | \ |
| 212 | ENABLE_EMASK_FBD_NORTH_CRC | \ |
| 213 | ENABLE_EMASK_FBD_SPD_PROTOCOL | \ |
| 214 | ENABLE_EMASK_FBD_THERMALS | \ |
| 215 | ENABLE_EMASK_FBD_DIMM_SPARE | \ |
| 216 | ENABLE_EMASK_FBD_FATAL_ERRORS | \ |
| 217 | ENABLE_EMASK_FBD_CORRECTABLE | \ |
| 218 | ENABLE_EMASK_FBD_UNCORRECTABLE) |
| 219 | |
| 220 | #define ERR0_FBD 0xAC |
| 221 | #define ERR1_FBD 0xB0 |
| 222 | #define ERR2_FBD 0xB4 |
| 223 | #define MCERR_FBD 0xB8 |
| 224 | #define NRECMEMA 0xBE |
| 225 | #define NREC_BANK(x) (((x)>>12) & 0x7) |
| 226 | #define NREC_RDWR(x) (((x)>>11) & 1) |
| 227 | #define NREC_RANK(x) (((x)>>8) & 0x7) |
| 228 | #define NRECMEMB 0xC0 |
| 229 | #define NREC_CAS(x) (((x)>>16) & 0xFFFFFF) |
| 230 | #define NREC_RAS(x) ((x) & 0x7FFF) |
| 231 | #define NRECFGLOG 0xC4 |
| 232 | #define NREEECFBDA 0xC8 |
| 233 | #define NREEECFBDB 0xCC |
| 234 | #define NREEECFBDC 0xD0 |
| 235 | #define NREEECFBDD 0xD4 |
| 236 | #define NREEECFBDE 0xD8 |
| 237 | #define REDMEMA 0xDC |
| 238 | #define RECMEMA 0xE2 |
| 239 | #define REC_BANK(x) (((x)>>12) & 0x7) |
| 240 | #define REC_RDWR(x) (((x)>>11) & 1) |
| 241 | #define REC_RANK(x) (((x)>>8) & 0x7) |
| 242 | #define RECMEMB 0xE4 |
| 243 | #define REC_CAS(x) (((x)>>16) & 0xFFFFFF) |
| 244 | #define REC_RAS(x) ((x) & 0x7FFF) |
| 245 | #define RECFGLOG 0xE8 |
| 246 | #define RECFBDA 0xEC |
| 247 | #define RECFBDB 0xF0 |
| 248 | #define RECFBDC 0xF4 |
| 249 | #define RECFBDD 0xF8 |
| 250 | #define RECFBDE 0xFC |
| 251 | |
| 252 | /* OFFSETS for Function 2 */ |
| 253 | |
| 254 | /* |
| 255 | * Device 21, |
| 256 | * Function 0: Memory Map Branch 0 |
| 257 | * |
| 258 | * Device 22, |
| 259 | * Function 0: Memory Map Branch 1 |
| 260 | */ |
| 261 | #define PCI_DEVICE_ID_I5000_BRANCH_0 0x25F5 |
| 262 | #define PCI_DEVICE_ID_I5000_BRANCH_1 0x25F6 |
| 263 | |
| 264 | #define AMB_PRESENT_0 0x64 |
| 265 | #define AMB_PRESENT_1 0x66 |
| 266 | #define MTR0 0x80 |
| 267 | #define MTR1 0x84 |
| 268 | #define MTR2 0x88 |
| 269 | #define MTR3 0x8C |
| 270 | |
| 271 | #define NUM_MTRS 4 |
| 272 | #define CHANNELS_PER_BRANCH (2) |
| 273 | |
| 274 | /* Defines to extract the vaious fields from the |
| 275 | * MTRx - Memory Technology Registers |
| 276 | */ |
| 277 | #define MTR_DIMMS_PRESENT(mtr) ((mtr) & (0x1 << 8)) |
| 278 | #define MTR_DRAM_WIDTH(mtr) ((((mtr) >> 6) & 0x1) ? 8 : 4) |
| 279 | #define MTR_DRAM_BANKS(mtr) ((((mtr) >> 5) & 0x1) ? 8 : 4) |
| 280 | #define MTR_DRAM_BANKS_ADDR_BITS(mtr) ((MTR_DRAM_BANKS(mtr) == 8) ? 3 : 2) |
| 281 | #define MTR_DIMM_RANK(mtr) (((mtr) >> 4) & 0x1) |
Marisuz Kozlowski | 977c76b | 2007-07-19 01:50:18 -0700 | [diff] [blame] | 282 | #define MTR_DIMM_RANK_ADDR_BITS(mtr) (MTR_DIMM_RANK(mtr) ? 2 : 1) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 283 | #define MTR_DIMM_ROWS(mtr) (((mtr) >> 2) & 0x3) |
| 284 | #define MTR_DIMM_ROWS_ADDR_BITS(mtr) (MTR_DIMM_ROWS(mtr) + 13) |
| 285 | #define MTR_DIMM_COLS(mtr) ((mtr) & 0x3) |
| 286 | #define MTR_DIMM_COLS_ADDR_BITS(mtr) (MTR_DIMM_COLS(mtr) + 10) |
| 287 | |
| 288 | #ifdef CONFIG_EDAC_DEBUG |
| 289 | static char *numrow_toString[] = { |
| 290 | "8,192 - 13 rows", |
| 291 | "16,384 - 14 rows", |
| 292 | "32,768 - 15 rows", |
| 293 | "reserved" |
| 294 | }; |
| 295 | |
| 296 | static char *numcol_toString[] = { |
| 297 | "1,024 - 10 columns", |
| 298 | "2,048 - 11 columns", |
| 299 | "4,096 - 12 columns", |
| 300 | "reserved" |
| 301 | }; |
| 302 | #endif |
| 303 | |
| 304 | /* Enumeration of supported devices */ |
| 305 | enum i5000_chips { |
| 306 | I5000P = 0, |
| 307 | I5000V = 1, /* future */ |
| 308 | I5000X = 2 /* future */ |
| 309 | }; |
| 310 | |
| 311 | /* Device name and register DID (Device ID) */ |
| 312 | struct i5000_dev_info { |
| 313 | const char *ctl_name; /* name for this device */ |
| 314 | u16 fsb_mapping_errors; /* DID for the branchmap,control */ |
| 315 | }; |
| 316 | |
| 317 | /* Table of devices attributes supported by this driver */ |
| 318 | static const struct i5000_dev_info i5000_devs[] = { |
| 319 | [I5000P] = { |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 320 | .ctl_name = "I5000", |
| 321 | .fsb_mapping_errors = PCI_DEVICE_ID_INTEL_I5000_DEV16, |
| 322 | }, |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 323 | }; |
| 324 | |
| 325 | struct i5000_dimm_info { |
| 326 | int megabytes; /* size, 0 means not present */ |
| 327 | int dual_rank; |
| 328 | }; |
| 329 | |
| 330 | #define MAX_CHANNELS 6 /* max possible channels */ |
| 331 | #define MAX_CSROWS (8*2) /* max possible csrows per channel */ |
| 332 | |
| 333 | /* driver private data structure */ |
| 334 | struct i5000_pvt { |
| 335 | struct pci_dev *system_address; /* 16.0 */ |
| 336 | struct pci_dev *branchmap_werrors; /* 16.1 */ |
| 337 | struct pci_dev *fsb_error_regs; /* 16.2 */ |
| 338 | struct pci_dev *branch_0; /* 21.0 */ |
| 339 | struct pci_dev *branch_1; /* 22.0 */ |
| 340 | |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 341 | u16 tolm; /* top of low memory */ |
| 342 | u64 ambase; /* AMB BAR */ |
| 343 | |
| 344 | u16 mir0, mir1, mir2; |
| 345 | |
| 346 | u16 b0_mtr[NUM_MTRS]; /* Memory Technlogy Reg */ |
| 347 | u16 b0_ambpresent0; /* Branch 0, Channel 0 */ |
| 348 | u16 b0_ambpresent1; /* Brnach 0, Channel 1 */ |
| 349 | |
| 350 | u16 b1_mtr[NUM_MTRS]; /* Memory Technlogy Reg */ |
| 351 | u16 b1_ambpresent0; /* Branch 1, Channel 8 */ |
| 352 | u16 b1_ambpresent1; /* Branch 1, Channel 1 */ |
| 353 | |
| 354 | /* DIMM infomation matrix, allocating architecture maximums */ |
| 355 | struct i5000_dimm_info dimm_info[MAX_CSROWS][MAX_CHANNELS]; |
| 356 | |
| 357 | /* Actual values for this controller */ |
| 358 | int maxch; /* Max channels */ |
| 359 | int maxdimmperch; /* Max DIMMs per channel */ |
| 360 | }; |
| 361 | |
| 362 | /* I5000 MCH error information retrieved from Hardware */ |
| 363 | struct i5000_error_info { |
| 364 | |
| 365 | /* These registers are always read from the MC */ |
| 366 | u32 ferr_fat_fbd; /* First Errors Fatal */ |
| 367 | u32 nerr_fat_fbd; /* Next Errors Fatal */ |
| 368 | u32 ferr_nf_fbd; /* First Errors Non-Fatal */ |
| 369 | u32 nerr_nf_fbd; /* Next Errors Non-Fatal */ |
| 370 | |
| 371 | /* These registers are input ONLY if there was a Recoverable Error */ |
| 372 | u32 redmemb; /* Recoverable Mem Data Error log B */ |
| 373 | u16 recmema; /* Recoverable Mem Error log A */ |
| 374 | u32 recmemb; /* Recoverable Mem Error log B */ |
| 375 | |
| 376 | /* These registers are input ONLY if there was a |
| 377 | * Non-Recoverable Error */ |
| 378 | u16 nrecmema; /* Non-Recoverable Mem log A */ |
| 379 | u16 nrecmemb; /* Non-Recoverable Mem log B */ |
| 380 | |
| 381 | }; |
| 382 | |
Dave Jiang | 456a2f9 | 2007-07-19 01:50:10 -0700 | [diff] [blame] | 383 | static struct edac_pci_ctl_info *i5000_pci; |
| 384 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 385 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 386 | * i5000_get_error_info Retrieve the hardware error information from |
| 387 | * the hardware and cache it in the 'info' |
| 388 | * structure |
| 389 | */ |
| 390 | static void i5000_get_error_info(struct mem_ctl_info *mci, |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 391 | struct i5000_error_info *info) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 392 | { |
| 393 | struct i5000_pvt *pvt; |
| 394 | u32 value; |
| 395 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 396 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 397 | |
| 398 | /* read in the 1st FATAL error register */ |
| 399 | pci_read_config_dword(pvt->branchmap_werrors, FERR_FAT_FBD, &value); |
| 400 | |
| 401 | /* Mask only the bits that the doc says are valid |
| 402 | */ |
| 403 | value &= (FERR_FAT_FBDCHAN | FERR_FAT_MASK); |
| 404 | |
| 405 | /* If there is an error, then read in the */ |
| 406 | /* NEXT FATAL error register and the Memory Error Log Register A */ |
| 407 | if (value & FERR_FAT_MASK) { |
| 408 | info->ferr_fat_fbd = value; |
| 409 | |
| 410 | /* harvest the various error data we need */ |
| 411 | pci_read_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 412 | NERR_FAT_FBD, &info->nerr_fat_fbd); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 413 | pci_read_config_word(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 414 | NRECMEMA, &info->nrecmema); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 415 | pci_read_config_word(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 416 | NRECMEMB, &info->nrecmemb); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 417 | |
| 418 | /* Clear the error bits, by writing them back */ |
| 419 | pci_write_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 420 | FERR_FAT_FBD, value); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 421 | } else { |
| 422 | info->ferr_fat_fbd = 0; |
| 423 | info->nerr_fat_fbd = 0; |
| 424 | info->nrecmema = 0; |
| 425 | info->nrecmemb = 0; |
| 426 | } |
| 427 | |
| 428 | /* read in the 1st NON-FATAL error register */ |
| 429 | pci_read_config_dword(pvt->branchmap_werrors, FERR_NF_FBD, &value); |
| 430 | |
| 431 | /* If there is an error, then read in the 1st NON-FATAL error |
| 432 | * register as well */ |
| 433 | if (value & FERR_NF_MASK) { |
| 434 | info->ferr_nf_fbd = value; |
| 435 | |
| 436 | /* harvest the various error data we need */ |
| 437 | pci_read_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 438 | NERR_NF_FBD, &info->nerr_nf_fbd); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 439 | pci_read_config_word(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 440 | RECMEMA, &info->recmema); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 441 | pci_read_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 442 | RECMEMB, &info->recmemb); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 443 | pci_read_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 444 | REDMEMB, &info->redmemb); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 445 | |
| 446 | /* Clear the error bits, by writing them back */ |
| 447 | pci_write_config_dword(pvt->branchmap_werrors, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 448 | FERR_NF_FBD, value); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 449 | } else { |
| 450 | info->ferr_nf_fbd = 0; |
| 451 | info->nerr_nf_fbd = 0; |
| 452 | info->recmema = 0; |
| 453 | info->recmemb = 0; |
| 454 | info->redmemb = 0; |
| 455 | } |
| 456 | } |
| 457 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 458 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 459 | * i5000_process_fatal_error_info(struct mem_ctl_info *mci, |
| 460 | * struct i5000_error_info *info, |
| 461 | * int handle_errors); |
| 462 | * |
| 463 | * handle the Intel FATAL errors, if any |
| 464 | */ |
| 465 | static void i5000_process_fatal_error_info(struct mem_ctl_info *mci, |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 466 | struct i5000_error_info *info, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 467 | int handle_errors) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 468 | { |
| 469 | char msg[EDAC_MC_LABEL_LEN + 1 + 90]; |
| 470 | u32 allErrors; |
| 471 | int branch; |
| 472 | int channel; |
| 473 | int bank; |
| 474 | int rank; |
| 475 | int rdwr; |
| 476 | int ras, cas; |
| 477 | |
| 478 | /* mask off the Error bits that are possible */ |
| 479 | allErrors = (info->ferr_fat_fbd & FERR_FAT_MASK); |
| 480 | if (!allErrors) |
| 481 | return; /* if no error, return now */ |
| 482 | |
| 483 | /* ONLY ONE of the possible error bits will be set, as per the docs */ |
| 484 | i5000_mc_printk(mci, KERN_ERR, |
| 485 | "FATAL ERRORS Found!!! 1st FATAL Err Reg= 0x%x\n", |
| 486 | allErrors); |
| 487 | |
| 488 | branch = EXTRACT_FBDCHAN_INDX(info->ferr_fat_fbd); |
| 489 | channel = branch; |
| 490 | |
| 491 | /* Use the NON-Recoverable macros to extract data */ |
| 492 | bank = NREC_BANK(info->nrecmema); |
| 493 | rank = NREC_RANK(info->nrecmema); |
| 494 | rdwr = NREC_RDWR(info->nrecmema); |
| 495 | ras = NREC_RAS(info->nrecmemb); |
| 496 | cas = NREC_CAS(info->nrecmemb); |
| 497 | |
| 498 | debugf0("\t\tCSROW= %d Channels= %d,%d (Branch= %d " |
| 499 | "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", |
| 500 | rank, channel, channel + 1, branch >> 1, bank, |
| 501 | rdwr ? "Write" : "Read", ras, cas); |
| 502 | |
| 503 | /* Only 1 bit will be on */ |
| 504 | if (allErrors & FERR_FAT_M1ERR) { |
| 505 | i5000_mc_printk(mci, KERN_ERR, |
| 506 | "Alert on non-redundant retry or fast " |
| 507 | "reset timeout\n"); |
| 508 | |
| 509 | } else if (allErrors & FERR_FAT_M2ERR) { |
| 510 | i5000_mc_printk(mci, KERN_ERR, |
| 511 | "Northbound CRC error on non-redundant " |
| 512 | "retry\n"); |
| 513 | |
| 514 | } else if (allErrors & FERR_FAT_M3ERR) { |
| 515 | i5000_mc_printk(mci, KERN_ERR, |
| 516 | ">Tmid Thermal event with intelligent " |
| 517 | "throttling disabled\n"); |
| 518 | } |
| 519 | |
| 520 | /* Form out message */ |
| 521 | snprintf(msg, sizeof(msg), |
| 522 | "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d CAS=%d " |
| 523 | "FATAL Err=0x%x)", |
| 524 | branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas, |
| 525 | allErrors); |
| 526 | |
| 527 | /* Call the helper to output message */ |
| 528 | edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg); |
| 529 | } |
| 530 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 531 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 532 | * i5000_process_fatal_error_info(struct mem_ctl_info *mci, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 533 | * struct i5000_error_info *info, |
| 534 | * int handle_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 535 | * |
| 536 | * handle the Intel NON-FATAL errors, if any |
| 537 | */ |
| 538 | static void i5000_process_nonfatal_error_info(struct mem_ctl_info *mci, |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 539 | struct i5000_error_info *info, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 540 | int handle_errors) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 541 | { |
| 542 | char msg[EDAC_MC_LABEL_LEN + 1 + 90]; |
| 543 | u32 allErrors; |
| 544 | u32 ue_errors; |
| 545 | u32 ce_errors; |
| 546 | u32 misc_errors; |
| 547 | int branch; |
| 548 | int channel; |
| 549 | int bank; |
| 550 | int rank; |
| 551 | int rdwr; |
| 552 | int ras, cas; |
| 553 | |
| 554 | /* mask off the Error bits that are possible */ |
| 555 | allErrors = (info->ferr_nf_fbd & FERR_NF_MASK); |
| 556 | if (!allErrors) |
| 557 | return; /* if no error, return now */ |
| 558 | |
| 559 | /* ONLY ONE of the possible error bits will be set, as per the docs */ |
| 560 | i5000_mc_printk(mci, KERN_WARNING, |
| 561 | "NON-FATAL ERRORS Found!!! 1st NON-FATAL Err " |
| 562 | "Reg= 0x%x\n", allErrors); |
| 563 | |
| 564 | ue_errors = allErrors & FERR_NF_UNCORRECTABLE; |
| 565 | if (ue_errors) { |
| 566 | debugf0("\tUncorrected bits= 0x%x\n", ue_errors); |
| 567 | |
| 568 | branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd); |
| 569 | channel = branch; |
| 570 | bank = NREC_BANK(info->nrecmema); |
| 571 | rank = NREC_RANK(info->nrecmema); |
| 572 | rdwr = NREC_RDWR(info->nrecmema); |
| 573 | ras = NREC_RAS(info->nrecmemb); |
| 574 | cas = NREC_CAS(info->nrecmemb); |
| 575 | |
| 576 | debugf0 |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 577 | ("\t\tCSROW= %d Channels= %d,%d (Branch= %d " |
| 578 | "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", |
| 579 | rank, channel, channel + 1, branch >> 1, bank, |
| 580 | rdwr ? "Write" : "Read", ras, cas); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 581 | |
| 582 | /* Form out message */ |
| 583 | snprintf(msg, sizeof(msg), |
| 584 | "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d " |
| 585 | "CAS=%d, UE Err=0x%x)", |
| 586 | branch >> 1, bank, rdwr ? "Write" : "Read", ras, cas, |
| 587 | ue_errors); |
| 588 | |
| 589 | /* Call the helper to output message */ |
| 590 | edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg); |
| 591 | } |
| 592 | |
| 593 | /* Check correctable errors */ |
| 594 | ce_errors = allErrors & FERR_NF_CORRECTABLE; |
| 595 | if (ce_errors) { |
| 596 | debugf0("\tCorrected bits= 0x%x\n", ce_errors); |
| 597 | |
| 598 | branch = EXTRACT_FBDCHAN_INDX(info->ferr_nf_fbd); |
| 599 | |
| 600 | channel = 0; |
| 601 | if (REC_ECC_LOCATOR_ODD(info->redmemb)) |
| 602 | channel = 1; |
| 603 | |
| 604 | /* Convert channel to be based from zero, instead of |
| 605 | * from branch base of 0 */ |
| 606 | channel += branch; |
| 607 | |
| 608 | bank = REC_BANK(info->recmema); |
| 609 | rank = REC_RANK(info->recmema); |
| 610 | rdwr = REC_RDWR(info->recmema); |
| 611 | ras = REC_RAS(info->recmemb); |
| 612 | cas = REC_CAS(info->recmemb); |
| 613 | |
| 614 | debugf0("\t\tCSROW= %d Channel= %d (Branch %d " |
| 615 | "DRAM Bank= %d rdwr= %s ras= %d cas= %d)\n", |
| 616 | rank, channel, branch >> 1, bank, |
| 617 | rdwr ? "Write" : "Read", ras, cas); |
| 618 | |
| 619 | /* Form out message */ |
| 620 | snprintf(msg, sizeof(msg), |
| 621 | "(Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d " |
| 622 | "CAS=%d, CE Err=0x%x)", branch >> 1, bank, |
| 623 | rdwr ? "Write" : "Read", ras, cas, ce_errors); |
| 624 | |
| 625 | /* Call the helper to output message */ |
| 626 | edac_mc_handle_fbd_ce(mci, rank, channel, msg); |
| 627 | } |
| 628 | |
| 629 | /* See if any of the thermal errors have fired */ |
| 630 | misc_errors = allErrors & FERR_NF_THERMAL; |
| 631 | if (misc_errors) { |
| 632 | i5000_printk(KERN_WARNING, "\tTHERMAL Error, bits= 0x%x\n", |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 633 | misc_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | /* See if any of the thermal errors have fired */ |
| 637 | misc_errors = allErrors & FERR_NF_NON_RETRY; |
| 638 | if (misc_errors) { |
| 639 | i5000_printk(KERN_WARNING, "\tNON-Retry Errors, bits= 0x%x\n", |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 640 | misc_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 641 | } |
| 642 | |
| 643 | /* See if any of the thermal errors have fired */ |
| 644 | misc_errors = allErrors & FERR_NF_NORTH_CRC; |
| 645 | if (misc_errors) { |
| 646 | i5000_printk(KERN_WARNING, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 647 | "\tNORTHBOUND CRC Error, bits= 0x%x\n", |
| 648 | misc_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | /* See if any of the thermal errors have fired */ |
| 652 | misc_errors = allErrors & FERR_NF_SPD_PROTOCOL; |
| 653 | if (misc_errors) { |
| 654 | i5000_printk(KERN_WARNING, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 655 | "\tSPD Protocol Error, bits= 0x%x\n", |
| 656 | misc_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | /* See if any of the thermal errors have fired */ |
| 660 | misc_errors = allErrors & FERR_NF_DIMM_SPARE; |
| 661 | if (misc_errors) { |
| 662 | i5000_printk(KERN_WARNING, "\tDIMM-Spare Error, bits= 0x%x\n", |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 663 | misc_errors); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 664 | } |
| 665 | } |
| 666 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 667 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 668 | * i5000_process_error_info Process the error info that is |
| 669 | * in the 'info' structure, previously retrieved from hardware |
| 670 | */ |
| 671 | static void i5000_process_error_info(struct mem_ctl_info *mci, |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 672 | struct i5000_error_info *info, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 673 | int handle_errors) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 674 | { |
| 675 | /* First handle any fatal errors that occurred */ |
| 676 | i5000_process_fatal_error_info(mci, info, handle_errors); |
| 677 | |
| 678 | /* now handle any non-fatal errors that occurred */ |
| 679 | i5000_process_nonfatal_error_info(mci, info, handle_errors); |
| 680 | } |
| 681 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 682 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 683 | * i5000_clear_error Retrieve any error from the hardware |
| 684 | * but do NOT process that error. |
| 685 | * Used for 'clearing' out of previous errors |
| 686 | * Called by the Core module. |
| 687 | */ |
| 688 | static void i5000_clear_error(struct mem_ctl_info *mci) |
| 689 | { |
| 690 | struct i5000_error_info info; |
| 691 | |
| 692 | i5000_get_error_info(mci, &info); |
| 693 | } |
| 694 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 695 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 696 | * i5000_check_error Retrieve and process errors reported by the |
| 697 | * hardware. Called by the Core module. |
| 698 | */ |
| 699 | static void i5000_check_error(struct mem_ctl_info *mci) |
| 700 | { |
| 701 | struct i5000_error_info info; |
| 702 | debugf4("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__); |
| 703 | i5000_get_error_info(mci, &info); |
| 704 | i5000_process_error_info(mci, &info, 1); |
| 705 | } |
| 706 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 707 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 708 | * i5000_get_devices Find and perform 'get' operation on the MCH's |
| 709 | * device/functions we want to reference for this driver |
| 710 | * |
| 711 | * Need to 'get' device 16 func 1 and func 2 |
| 712 | */ |
| 713 | static int i5000_get_devices(struct mem_ctl_info *mci, int dev_idx) |
| 714 | { |
| 715 | //const struct i5000_dev_info *i5000_dev = &i5000_devs[dev_idx]; |
| 716 | struct i5000_pvt *pvt; |
| 717 | struct pci_dev *pdev; |
| 718 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 719 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 720 | |
| 721 | /* Attempt to 'get' the MCH register we want */ |
| 722 | pdev = NULL; |
| 723 | while (1) { |
| 724 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 725 | PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 726 | |
| 727 | /* End of list, leave */ |
| 728 | if (pdev == NULL) { |
| 729 | i5000_printk(KERN_ERR, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 730 | "'system address,Process Bus' " |
| 731 | "device not found:" |
| 732 | "vendor 0x%x device 0x%x FUNC 1 " |
| 733 | "(broken BIOS?)\n", |
| 734 | PCI_VENDOR_ID_INTEL, |
| 735 | PCI_DEVICE_ID_INTEL_I5000_DEV16); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 736 | |
| 737 | return 1; |
| 738 | } |
| 739 | |
| 740 | /* Scan for device 16 func 1 */ |
| 741 | if (PCI_FUNC(pdev->devfn) == 1) |
| 742 | break; |
| 743 | } |
| 744 | |
| 745 | pvt->branchmap_werrors = pdev; |
| 746 | |
| 747 | /* Attempt to 'get' the MCH register we want */ |
| 748 | pdev = NULL; |
| 749 | while (1) { |
| 750 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 751 | PCI_DEVICE_ID_INTEL_I5000_DEV16, pdev); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 752 | |
| 753 | if (pdev == NULL) { |
| 754 | i5000_printk(KERN_ERR, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 755 | "MC: 'branchmap,control,errors' " |
| 756 | "device not found:" |
| 757 | "vendor 0x%x device 0x%x Func 2 " |
| 758 | "(broken BIOS?)\n", |
| 759 | PCI_VENDOR_ID_INTEL, |
| 760 | PCI_DEVICE_ID_INTEL_I5000_DEV16); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 761 | |
| 762 | pci_dev_put(pvt->branchmap_werrors); |
| 763 | return 1; |
| 764 | } |
| 765 | |
| 766 | /* Scan for device 16 func 1 */ |
| 767 | if (PCI_FUNC(pdev->devfn) == 2) |
| 768 | break; |
| 769 | } |
| 770 | |
| 771 | pvt->fsb_error_regs = pdev; |
| 772 | |
| 773 | debugf1("System Address, processor bus- PCI Bus ID: %s %x:%x\n", |
| 774 | pci_name(pvt->system_address), |
| 775 | pvt->system_address->vendor, pvt->system_address->device); |
| 776 | debugf1("Branchmap, control and errors - PCI Bus ID: %s %x:%x\n", |
| 777 | pci_name(pvt->branchmap_werrors), |
| 778 | pvt->branchmap_werrors->vendor, pvt->branchmap_werrors->device); |
| 779 | debugf1("FSB Error Regs - PCI Bus ID: %s %x:%x\n", |
| 780 | pci_name(pvt->fsb_error_regs), |
| 781 | pvt->fsb_error_regs->vendor, pvt->fsb_error_regs->device); |
| 782 | |
| 783 | pdev = NULL; |
| 784 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 785 | PCI_DEVICE_ID_I5000_BRANCH_0, pdev); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 786 | |
| 787 | if (pdev == NULL) { |
| 788 | i5000_printk(KERN_ERR, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 789 | "MC: 'BRANCH 0' device not found:" |
| 790 | "vendor 0x%x device 0x%x Func 0 (broken BIOS?)\n", |
| 791 | PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_I5000_BRANCH_0); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 792 | |
| 793 | pci_dev_put(pvt->branchmap_werrors); |
| 794 | pci_dev_put(pvt->fsb_error_regs); |
| 795 | return 1; |
| 796 | } |
| 797 | |
| 798 | pvt->branch_0 = pdev; |
| 799 | |
| 800 | /* If this device claims to have more than 2 channels then |
| 801 | * fetch Branch 1's information |
| 802 | */ |
| 803 | if (pvt->maxch >= CHANNELS_PER_BRANCH) { |
| 804 | pdev = NULL; |
| 805 | pdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 806 | PCI_DEVICE_ID_I5000_BRANCH_1, pdev); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 807 | |
| 808 | if (pdev == NULL) { |
| 809 | i5000_printk(KERN_ERR, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 810 | "MC: 'BRANCH 1' device not found:" |
| 811 | "vendor 0x%x device 0x%x Func 0 " |
| 812 | "(broken BIOS?)\n", |
| 813 | PCI_VENDOR_ID_INTEL, |
| 814 | PCI_DEVICE_ID_I5000_BRANCH_1); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 815 | |
| 816 | pci_dev_put(pvt->branchmap_werrors); |
| 817 | pci_dev_put(pvt->fsb_error_regs); |
| 818 | pci_dev_put(pvt->branch_0); |
| 819 | return 1; |
| 820 | } |
| 821 | |
| 822 | pvt->branch_1 = pdev; |
| 823 | } |
| 824 | |
| 825 | return 0; |
| 826 | } |
| 827 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 828 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 829 | * i5000_put_devices 'put' all the devices that we have |
| 830 | * reserved via 'get' |
| 831 | */ |
| 832 | static void i5000_put_devices(struct mem_ctl_info *mci) |
| 833 | { |
| 834 | struct i5000_pvt *pvt; |
| 835 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 836 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 837 | |
| 838 | pci_dev_put(pvt->branchmap_werrors); /* FUNC 1 */ |
| 839 | pci_dev_put(pvt->fsb_error_regs); /* FUNC 2 */ |
| 840 | pci_dev_put(pvt->branch_0); /* DEV 21 */ |
| 841 | |
| 842 | /* Only if more than 2 channels do we release the second branch */ |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 843 | if (pvt->maxch >= CHANNELS_PER_BRANCH) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 844 | pci_dev_put(pvt->branch_1); /* DEV 22 */ |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 845 | } |
| 846 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 847 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 848 | * determine_amb_resent |
| 849 | * |
| 850 | * the information is contained in NUM_MTRS different registers |
| 851 | * determineing which of the NUM_MTRS requires knowing |
| 852 | * which channel is in question |
| 853 | * |
| 854 | * 2 branches, each with 2 channels |
| 855 | * b0_ambpresent0 for channel '0' |
| 856 | * b0_ambpresent1 for channel '1' |
| 857 | * b1_ambpresent0 for channel '2' |
| 858 | * b1_ambpresent1 for channel '3' |
| 859 | */ |
| 860 | static int determine_amb_present_reg(struct i5000_pvt *pvt, int channel) |
| 861 | { |
| 862 | int amb_present; |
| 863 | |
| 864 | if (channel < CHANNELS_PER_BRANCH) { |
| 865 | if (channel & 0x1) |
| 866 | amb_present = pvt->b0_ambpresent1; |
| 867 | else |
| 868 | amb_present = pvt->b0_ambpresent0; |
| 869 | } else { |
| 870 | if (channel & 0x1) |
| 871 | amb_present = pvt->b1_ambpresent1; |
| 872 | else |
| 873 | amb_present = pvt->b1_ambpresent0; |
| 874 | } |
| 875 | |
| 876 | return amb_present; |
| 877 | } |
| 878 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 879 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 880 | * determine_mtr(pvt, csrow, channel) |
| 881 | * |
| 882 | * return the proper MTR register as determine by the csrow and channel desired |
| 883 | */ |
| 884 | static int determine_mtr(struct i5000_pvt *pvt, int csrow, int channel) |
| 885 | { |
| 886 | int mtr; |
| 887 | |
| 888 | if (channel < CHANNELS_PER_BRANCH) |
| 889 | mtr = pvt->b0_mtr[csrow >> 1]; |
| 890 | else |
| 891 | mtr = pvt->b1_mtr[csrow >> 1]; |
| 892 | |
| 893 | return mtr; |
| 894 | } |
| 895 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 896 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 897 | */ |
| 898 | static void decode_mtr(int slot_row, u16 mtr) |
| 899 | { |
| 900 | int ans; |
| 901 | |
| 902 | ans = MTR_DIMMS_PRESENT(mtr); |
| 903 | |
| 904 | debugf2("\tMTR%d=0x%x: DIMMs are %s\n", slot_row, mtr, |
| 905 | ans ? "Present" : "NOT Present"); |
| 906 | if (!ans) |
| 907 | return; |
| 908 | |
| 909 | debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr)); |
| 910 | debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr)); |
| 911 | debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr) ? "double" : "single"); |
| 912 | debugf2("\t\tNUMROW: %s\n", numrow_toString[MTR_DIMM_ROWS(mtr)]); |
| 913 | debugf2("\t\tNUMCOL: %s\n", numcol_toString[MTR_DIMM_COLS(mtr)]); |
| 914 | } |
| 915 | |
| 916 | static void handle_channel(struct i5000_pvt *pvt, int csrow, int channel, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 917 | struct i5000_dimm_info *dinfo) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 918 | { |
| 919 | int mtr; |
| 920 | int amb_present_reg; |
| 921 | int addrBits; |
| 922 | |
| 923 | mtr = determine_mtr(pvt, csrow, channel); |
| 924 | if (MTR_DIMMS_PRESENT(mtr)) { |
| 925 | amb_present_reg = determine_amb_present_reg(pvt, channel); |
| 926 | |
| 927 | /* Determine if there is a DIMM present in this DIMM slot */ |
| 928 | if (amb_present_reg & (1 << (csrow >> 1))) { |
| 929 | dinfo->dual_rank = MTR_DIMM_RANK(mtr); |
| 930 | |
| 931 | if (!((dinfo->dual_rank == 0) && |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 932 | ((csrow & 0x1) == 0x1))) { |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 933 | /* Start with the number of bits for a Bank |
| 934 | * on the DRAM */ |
| 935 | addrBits = MTR_DRAM_BANKS_ADDR_BITS(mtr); |
| 936 | /* Add thenumber of ROW bits */ |
| 937 | addrBits += MTR_DIMM_ROWS_ADDR_BITS(mtr); |
| 938 | /* add the number of COLUMN bits */ |
| 939 | addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr); |
| 940 | |
| 941 | addrBits += 6; /* add 64 bits per DIMM */ |
| 942 | addrBits -= 20; /* divide by 2^^20 */ |
| 943 | addrBits -= 3; /* 8 bits per bytes */ |
| 944 | |
| 945 | dinfo->megabytes = 1 << addrBits; |
| 946 | } |
| 947 | } |
| 948 | } |
| 949 | } |
| 950 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 951 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 952 | * calculate_dimm_size |
| 953 | * |
| 954 | * also will output a DIMM matrix map, if debug is enabled, for viewing |
| 955 | * how the DIMMs are populated |
| 956 | */ |
| 957 | static void calculate_dimm_size(struct i5000_pvt *pvt) |
| 958 | { |
| 959 | struct i5000_dimm_info *dinfo; |
| 960 | int csrow, max_csrows; |
| 961 | char *p, *mem_buffer; |
| 962 | int space, n; |
| 963 | int channel; |
| 964 | |
| 965 | /* ================= Generate some debug output ================= */ |
| 966 | space = PAGE_SIZE; |
| 967 | mem_buffer = p = kmalloc(space, GFP_KERNEL); |
| 968 | if (p == NULL) { |
| 969 | i5000_printk(KERN_ERR, "MC: %s:%s() kmalloc() failed\n", |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 970 | __FILE__, __func__); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 971 | return; |
| 972 | } |
| 973 | |
| 974 | n = snprintf(p, space, "\n"); |
| 975 | p += n; |
| 976 | space -= n; |
| 977 | |
| 978 | /* Scan all the actual CSROWS (which is # of DIMMS * 2) |
| 979 | * and calculate the information for each DIMM |
| 980 | * Start with the highest csrow first, to display it first |
| 981 | * and work toward the 0th csrow |
| 982 | */ |
| 983 | max_csrows = pvt->maxdimmperch * 2; |
| 984 | for (csrow = max_csrows - 1; csrow >= 0; csrow--) { |
| 985 | |
| 986 | /* on an odd csrow, first output a 'boundary' marker, |
| 987 | * then reset the message buffer */ |
| 988 | if (csrow & 0x1) { |
| 989 | n = snprintf(p, space, "---------------------------" |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 990 | "--------------------------------"); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 991 | p += n; |
| 992 | space -= n; |
| 993 | debugf2("%s\n", mem_buffer); |
| 994 | p = mem_buffer; |
| 995 | space = PAGE_SIZE; |
| 996 | } |
| 997 | n = snprintf(p, space, "csrow %2d ", csrow); |
| 998 | p += n; |
| 999 | space -= n; |
| 1000 | |
| 1001 | for (channel = 0; channel < pvt->maxch; channel++) { |
| 1002 | dinfo = &pvt->dimm_info[csrow][channel]; |
| 1003 | handle_channel(pvt, csrow, channel, dinfo); |
| 1004 | n = snprintf(p, space, "%4d MB | ", dinfo->megabytes); |
| 1005 | p += n; |
| 1006 | space -= n; |
| 1007 | } |
| 1008 | n = snprintf(p, space, "\n"); |
| 1009 | p += n; |
| 1010 | space -= n; |
| 1011 | } |
| 1012 | |
| 1013 | /* Output the last bottom 'boundary' marker */ |
| 1014 | n = snprintf(p, space, "---------------------------" |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1015 | "--------------------------------\n"); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1016 | p += n; |
| 1017 | space -= n; |
| 1018 | |
| 1019 | /* now output the 'channel' labels */ |
| 1020 | n = snprintf(p, space, " "); |
| 1021 | p += n; |
| 1022 | space -= n; |
| 1023 | for (channel = 0; channel < pvt->maxch; channel++) { |
| 1024 | n = snprintf(p, space, "channel %d | ", channel); |
| 1025 | p += n; |
| 1026 | space -= n; |
| 1027 | } |
| 1028 | n = snprintf(p, space, "\n"); |
| 1029 | p += n; |
| 1030 | space -= n; |
| 1031 | |
| 1032 | /* output the last message and free buffer */ |
| 1033 | debugf2("%s\n", mem_buffer); |
| 1034 | kfree(mem_buffer); |
| 1035 | } |
| 1036 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1037 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1038 | * i5000_get_mc_regs read in the necessary registers and |
| 1039 | * cache locally |
| 1040 | * |
| 1041 | * Fills in the private data members |
| 1042 | */ |
| 1043 | static void i5000_get_mc_regs(struct mem_ctl_info *mci) |
| 1044 | { |
| 1045 | struct i5000_pvt *pvt; |
| 1046 | u32 actual_tolm; |
| 1047 | u16 limit; |
| 1048 | int slot_row; |
| 1049 | int maxch; |
| 1050 | int maxdimmperch; |
| 1051 | int way0, way1; |
| 1052 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1053 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1054 | |
| 1055 | pci_read_config_dword(pvt->system_address, AMBASE, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1056 | (u32 *) & pvt->ambase); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1057 | pci_read_config_dword(pvt->system_address, AMBASE + sizeof(u32), |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1058 | ((u32 *) & pvt->ambase) + sizeof(u32)); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1059 | |
| 1060 | maxdimmperch = pvt->maxdimmperch; |
| 1061 | maxch = pvt->maxch; |
| 1062 | |
| 1063 | debugf2("AMBASE= 0x%lx MAXCH= %d MAX-DIMM-Per-CH= %d\n", |
| 1064 | (long unsigned int)pvt->ambase, pvt->maxch, pvt->maxdimmperch); |
| 1065 | |
| 1066 | /* Get the Branch Map regs */ |
| 1067 | pci_read_config_word(pvt->branchmap_werrors, TOLM, &pvt->tolm); |
| 1068 | pvt->tolm >>= 12; |
| 1069 | debugf2("\nTOLM (number of 256M regions) =%u (0x%x)\n", pvt->tolm, |
| 1070 | pvt->tolm); |
| 1071 | |
| 1072 | actual_tolm = pvt->tolm << 28; |
| 1073 | debugf2("Actual TOLM byte addr=%u (0x%x)\n", actual_tolm, actual_tolm); |
| 1074 | |
| 1075 | pci_read_config_word(pvt->branchmap_werrors, MIR0, &pvt->mir0); |
| 1076 | pci_read_config_word(pvt->branchmap_werrors, MIR1, &pvt->mir1); |
| 1077 | pci_read_config_word(pvt->branchmap_werrors, MIR2, &pvt->mir2); |
| 1078 | |
| 1079 | /* Get the MIR[0-2] regs */ |
| 1080 | limit = (pvt->mir0 >> 4) & 0x0FFF; |
| 1081 | way0 = pvt->mir0 & 0x1; |
| 1082 | way1 = pvt->mir0 & 0x2; |
| 1083 | debugf2("MIR0: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); |
| 1084 | limit = (pvt->mir1 >> 4) & 0x0FFF; |
| 1085 | way0 = pvt->mir1 & 0x1; |
| 1086 | way1 = pvt->mir1 & 0x2; |
| 1087 | debugf2("MIR1: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); |
| 1088 | limit = (pvt->mir2 >> 4) & 0x0FFF; |
| 1089 | way0 = pvt->mir2 & 0x1; |
| 1090 | way1 = pvt->mir2 & 0x2; |
| 1091 | debugf2("MIR2: limit= 0x%x WAY1= %u WAY0= %x\n", limit, way1, way0); |
| 1092 | |
| 1093 | /* Get the MTR[0-3] regs */ |
| 1094 | for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { |
| 1095 | int where = MTR0 + (slot_row * sizeof(u32)); |
| 1096 | |
| 1097 | pci_read_config_word(pvt->branch_0, where, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1098 | &pvt->b0_mtr[slot_row]); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1099 | |
| 1100 | debugf2("MTR%d where=0x%x B0 value=0x%x\n", slot_row, where, |
| 1101 | pvt->b0_mtr[slot_row]); |
| 1102 | |
| 1103 | if (pvt->maxch >= CHANNELS_PER_BRANCH) { |
| 1104 | pci_read_config_word(pvt->branch_1, where, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1105 | &pvt->b1_mtr[slot_row]); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1106 | debugf2("MTR%d where=0x%x B1 value=0x%x\n", slot_row, |
| 1107 | where, pvt->b0_mtr[slot_row]); |
| 1108 | } else { |
| 1109 | pvt->b1_mtr[slot_row] = 0; |
| 1110 | } |
| 1111 | } |
| 1112 | |
| 1113 | /* Read and dump branch 0's MTRs */ |
| 1114 | debugf2("\nMemory Technology Registers:\n"); |
| 1115 | debugf2(" Branch 0:\n"); |
| 1116 | for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { |
| 1117 | decode_mtr(slot_row, pvt->b0_mtr[slot_row]); |
| 1118 | } |
| 1119 | pci_read_config_word(pvt->branch_0, AMB_PRESENT_0, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1120 | &pvt->b0_ambpresent0); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1121 | debugf2("\t\tAMB-Branch 0-present0 0x%x:\n", pvt->b0_ambpresent0); |
| 1122 | pci_read_config_word(pvt->branch_0, AMB_PRESENT_1, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1123 | &pvt->b0_ambpresent1); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1124 | debugf2("\t\tAMB-Branch 0-present1 0x%x:\n", pvt->b0_ambpresent1); |
| 1125 | |
| 1126 | /* Only if we have 2 branchs (4 channels) */ |
| 1127 | if (pvt->maxch < CHANNELS_PER_BRANCH) { |
| 1128 | pvt->b1_ambpresent0 = 0; |
| 1129 | pvt->b1_ambpresent1 = 0; |
| 1130 | } else { |
| 1131 | /* Read and dump branch 1's MTRs */ |
| 1132 | debugf2(" Branch 1:\n"); |
| 1133 | for (slot_row = 0; slot_row < NUM_MTRS; slot_row++) { |
| 1134 | decode_mtr(slot_row, pvt->b1_mtr[slot_row]); |
| 1135 | } |
| 1136 | pci_read_config_word(pvt->branch_1, AMB_PRESENT_0, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1137 | &pvt->b1_ambpresent0); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1138 | debugf2("\t\tAMB-Branch 1-present0 0x%x:\n", |
| 1139 | pvt->b1_ambpresent0); |
| 1140 | pci_read_config_word(pvt->branch_1, AMB_PRESENT_1, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1141 | &pvt->b1_ambpresent1); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1142 | debugf2("\t\tAMB-Branch 1-present1 0x%x:\n", |
| 1143 | pvt->b1_ambpresent1); |
| 1144 | } |
| 1145 | |
| 1146 | /* Go and determine the size of each DIMM and place in an |
| 1147 | * orderly matrix */ |
| 1148 | calculate_dimm_size(pvt); |
| 1149 | } |
| 1150 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1151 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1152 | * i5000_init_csrows Initialize the 'csrows' table within |
| 1153 | * the mci control structure with the |
| 1154 | * addressing of memory. |
| 1155 | * |
| 1156 | * return: |
| 1157 | * 0 success |
| 1158 | * 1 no actual memory found on this MC |
| 1159 | */ |
| 1160 | static int i5000_init_csrows(struct mem_ctl_info *mci) |
| 1161 | { |
| 1162 | struct i5000_pvt *pvt; |
| 1163 | struct csrow_info *p_csrow; |
| 1164 | int empty, channel_count; |
| 1165 | int max_csrows; |
| 1166 | int mtr; |
| 1167 | int csrow_megs; |
| 1168 | int channel; |
| 1169 | int csrow; |
| 1170 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1171 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1172 | |
| 1173 | channel_count = pvt->maxch; |
| 1174 | max_csrows = pvt->maxdimmperch * 2; |
| 1175 | |
| 1176 | empty = 1; /* Assume NO memory */ |
| 1177 | |
| 1178 | for (csrow = 0; csrow < max_csrows; csrow++) { |
| 1179 | p_csrow = &mci->csrows[csrow]; |
| 1180 | |
| 1181 | p_csrow->csrow_idx = csrow; |
| 1182 | |
| 1183 | /* use branch 0 for the basis */ |
| 1184 | mtr = pvt->b0_mtr[csrow >> 1]; |
| 1185 | |
| 1186 | /* if no DIMMS on this row, continue */ |
| 1187 | if (!MTR_DIMMS_PRESENT(mtr)) |
| 1188 | continue; |
| 1189 | |
| 1190 | /* FAKE OUT VALUES, FIXME */ |
| 1191 | p_csrow->first_page = 0 + csrow * 20; |
| 1192 | p_csrow->last_page = 9 + csrow * 20; |
| 1193 | p_csrow->page_mask = 0xFFF; |
| 1194 | |
| 1195 | p_csrow->grain = 8; |
| 1196 | |
| 1197 | csrow_megs = 0; |
| 1198 | for (channel = 0; channel < pvt->maxch; channel++) { |
| 1199 | csrow_megs += pvt->dimm_info[csrow][channel].megabytes; |
| 1200 | } |
| 1201 | |
| 1202 | p_csrow->nr_pages = csrow_megs << 8; |
| 1203 | |
| 1204 | /* Assume DDR2 for now */ |
| 1205 | p_csrow->mtype = MEM_FB_DDR2; |
| 1206 | |
| 1207 | /* ask what device type on this row */ |
| 1208 | if (MTR_DRAM_WIDTH(mtr)) |
| 1209 | p_csrow->dtype = DEV_X8; |
| 1210 | else |
| 1211 | p_csrow->dtype = DEV_X4; |
| 1212 | |
| 1213 | p_csrow->edac_mode = EDAC_S8ECD8ED; |
| 1214 | |
| 1215 | empty = 0; |
| 1216 | } |
| 1217 | |
| 1218 | return empty; |
| 1219 | } |
| 1220 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1221 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1222 | * i5000_enable_error_reporting |
| 1223 | * Turn on the memory reporting features of the hardware |
| 1224 | */ |
| 1225 | static void i5000_enable_error_reporting(struct mem_ctl_info *mci) |
| 1226 | { |
| 1227 | struct i5000_pvt *pvt; |
| 1228 | u32 fbd_error_mask; |
| 1229 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1230 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1231 | |
| 1232 | /* Read the FBD Error Mask Register */ |
| 1233 | pci_read_config_dword(pvt->branchmap_werrors, EMASK_FBD, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1234 | &fbd_error_mask); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1235 | |
| 1236 | /* Enable with a '0' */ |
| 1237 | fbd_error_mask &= ~(ENABLE_EMASK_ALL); |
| 1238 | |
| 1239 | pci_write_config_dword(pvt->branchmap_werrors, EMASK_FBD, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1240 | fbd_error_mask); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1241 | } |
| 1242 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1243 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1244 | * i5000_get_dimm_and_channel_counts(pdev, &num_csrows, &num_channels) |
| 1245 | * |
| 1246 | * ask the device how many channels are present and how many CSROWS |
| 1247 | * as well |
| 1248 | */ |
| 1249 | static void i5000_get_dimm_and_channel_counts(struct pci_dev *pdev, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1250 | int *num_dimms_per_channel, |
| 1251 | int *num_channels) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1252 | { |
| 1253 | u8 value; |
| 1254 | |
| 1255 | /* Need to retrieve just how many channels and dimms per channel are |
| 1256 | * supported on this memory controller |
| 1257 | */ |
| 1258 | pci_read_config_byte(pdev, MAXDIMMPERCH, &value); |
| 1259 | *num_dimms_per_channel = (int)value *2; |
| 1260 | |
| 1261 | pci_read_config_byte(pdev, MAXCH, &value); |
| 1262 | *num_channels = (int)value; |
| 1263 | } |
| 1264 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1265 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1266 | * i5000_probe1 Probe for ONE instance of device to see if it is |
| 1267 | * present. |
| 1268 | * return: |
| 1269 | * 0 for FOUND a device |
| 1270 | * < 0 for error code |
| 1271 | */ |
| 1272 | static int i5000_probe1(struct pci_dev *pdev, int dev_idx) |
| 1273 | { |
| 1274 | struct mem_ctl_info *mci; |
| 1275 | struct i5000_pvt *pvt; |
| 1276 | int num_channels; |
| 1277 | int num_dimms_per_channel; |
| 1278 | int num_csrows; |
| 1279 | |
| 1280 | debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n", |
| 1281 | __func__, |
| 1282 | pdev->bus->number, |
| 1283 | PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); |
| 1284 | |
| 1285 | /* We only are looking for func 0 of the set */ |
| 1286 | if (PCI_FUNC(pdev->devfn) != 0) |
| 1287 | return -ENODEV; |
| 1288 | |
Dave Jiang | c0d1217 | 2007-07-19 01:49:46 -0700 | [diff] [blame] | 1289 | /* make sure error reporting method is sane */ |
Douglas Thompson | f4aff42 | 2007-07-19 01:50:03 -0700 | [diff] [blame] | 1290 | switch (edac_op_state) { |
| 1291 | case EDAC_OPSTATE_POLL: |
| 1292 | case EDAC_OPSTATE_NMI: |
| 1293 | break; |
| 1294 | default: |
| 1295 | edac_op_state = EDAC_OPSTATE_POLL; |
| 1296 | break; |
Dave Jiang | c0d1217 | 2007-07-19 01:49:46 -0700 | [diff] [blame] | 1297 | } |
| 1298 | |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1299 | /* Ask the devices for the number of CSROWS and CHANNELS so |
| 1300 | * that we can calculate the memory resources, etc |
| 1301 | * |
| 1302 | * The Chipset will report what it can handle which will be greater |
| 1303 | * or equal to what the motherboard manufacturer will implement. |
| 1304 | * |
| 1305 | * As we don't have a motherboard identification routine to determine |
| 1306 | * actual number of slots/dimms per channel, we thus utilize the |
| 1307 | * resource as specified by the chipset. Thus, we might have |
| 1308 | * have more DIMMs per channel than actually on the mobo, but this |
| 1309 | * allows the driver to support upto the chipset max, without |
| 1310 | * some fancy mobo determination. |
| 1311 | */ |
| 1312 | i5000_get_dimm_and_channel_counts(pdev, &num_dimms_per_channel, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1313 | &num_channels); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1314 | num_csrows = num_dimms_per_channel * 2; |
| 1315 | |
| 1316 | debugf0("MC: %s(): Number of - Channels= %d DIMMS= %d CSROWS= %d\n", |
| 1317 | __func__, num_channels, num_dimms_per_channel, num_csrows); |
| 1318 | |
| 1319 | /* allocate a new MC control structure */ |
Doug Thompson | b8f6f97 | 2007-07-19 01:50:26 -0700 | [diff] [blame] | 1320 | mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels, 0); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1321 | |
| 1322 | if (mci == NULL) |
| 1323 | return -ENOMEM; |
| 1324 | |
| 1325 | debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci); |
| 1326 | |
| 1327 | mci->dev = &pdev->dev; /* record ptr to the generic device */ |
| 1328 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1329 | pvt = mci->pvt_info; |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1330 | pvt->system_address = pdev; /* Record this device in our private */ |
| 1331 | pvt->maxch = num_channels; |
| 1332 | pvt->maxdimmperch = num_dimms_per_channel; |
| 1333 | |
| 1334 | /* 'get' the pci devices we want to reserve for our use */ |
| 1335 | if (i5000_get_devices(mci, dev_idx)) |
| 1336 | goto fail0; |
| 1337 | |
| 1338 | /* Time to get serious */ |
| 1339 | i5000_get_mc_regs(mci); /* retrieve the hardware registers */ |
| 1340 | |
| 1341 | mci->mc_idx = 0; |
| 1342 | mci->mtype_cap = MEM_FLAG_FB_DDR2; |
| 1343 | mci->edac_ctl_cap = EDAC_FLAG_NONE; |
| 1344 | mci->edac_cap = EDAC_FLAG_NONE; |
| 1345 | mci->mod_name = "i5000_edac.c"; |
| 1346 | mci->mod_ver = I5000_REVISION; |
| 1347 | mci->ctl_name = i5000_devs[dev_idx].ctl_name; |
Dave Jiang | c419270 | 2007-07-19 01:49:47 -0700 | [diff] [blame] | 1348 | mci->dev_name = pci_name(pdev); |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1349 | mci->ctl_page_to_phys = NULL; |
| 1350 | |
| 1351 | /* Set the function pointer to an actual operation function */ |
| 1352 | mci->edac_check = i5000_check_error; |
| 1353 | |
| 1354 | /* initialize the MC control structure 'csrows' table |
| 1355 | * with the mapping and control information */ |
| 1356 | if (i5000_init_csrows(mci)) { |
| 1357 | debugf0("MC: Setting mci->edac_cap to EDAC_FLAG_NONE\n" |
| 1358 | " because i5000_init_csrows() returned nonzero " |
| 1359 | "value\n"); |
| 1360 | mci->edac_cap = EDAC_FLAG_NONE; /* no csrows found */ |
| 1361 | } else { |
| 1362 | debugf1("MC: Enable error reporting now\n"); |
| 1363 | i5000_enable_error_reporting(mci); |
| 1364 | } |
| 1365 | |
| 1366 | /* add this new MC control structure to EDAC's list of MCs */ |
Doug Thompson | b8f6f97 | 2007-07-19 01:50:26 -0700 | [diff] [blame] | 1367 | if (edac_mc_add_mc(mci)) { |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1368 | debugf0("MC: " __FILE__ |
| 1369 | ": %s(): failed edac_mc_add_mc()\n", __func__); |
| 1370 | /* FIXME: perhaps some code should go here that disables error |
| 1371 | * reporting if we just enabled it |
| 1372 | */ |
| 1373 | goto fail1; |
| 1374 | } |
| 1375 | |
| 1376 | i5000_clear_error(mci); |
| 1377 | |
Dave Jiang | 456a2f9 | 2007-07-19 01:50:10 -0700 | [diff] [blame] | 1378 | /* allocating generic PCI control info */ |
| 1379 | i5000_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR); |
| 1380 | if (!i5000_pci) { |
| 1381 | printk(KERN_WARNING |
| 1382 | "%s(): Unable to create PCI control\n", |
| 1383 | __func__); |
| 1384 | printk(KERN_WARNING |
| 1385 | "%s(): PCI error report via EDAC not setup\n", |
| 1386 | __func__); |
| 1387 | } |
| 1388 | |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1389 | return 0; |
| 1390 | |
| 1391 | /* Error exit unwinding stack */ |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1392 | fail1: |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1393 | |
| 1394 | i5000_put_devices(mci); |
| 1395 | |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1396 | fail0: |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1397 | edac_mc_free(mci); |
| 1398 | return -ENODEV; |
| 1399 | } |
| 1400 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1401 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1402 | * i5000_init_one constructor for one instance of device |
| 1403 | * |
| 1404 | * returns: |
| 1405 | * negative on error |
| 1406 | * count (>= 0) |
| 1407 | */ |
| 1408 | static int __devinit i5000_init_one(struct pci_dev *pdev, |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1409 | const struct pci_device_id *id) |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1410 | { |
| 1411 | int rc; |
| 1412 | |
| 1413 | debugf0("MC: " __FILE__ ": %s()\n", __func__); |
| 1414 | |
| 1415 | /* wake up device */ |
| 1416 | rc = pci_enable_device(pdev); |
| 1417 | if (rc == -EIO) |
| 1418 | return rc; |
| 1419 | |
| 1420 | /* now probe and enable the device */ |
| 1421 | return i5000_probe1(pdev, id->driver_data); |
| 1422 | } |
| 1423 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1424 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1425 | * i5000_remove_one destructor for one instance of device |
| 1426 | * |
| 1427 | */ |
| 1428 | static void __devexit i5000_remove_one(struct pci_dev *pdev) |
| 1429 | { |
| 1430 | struct mem_ctl_info *mci; |
| 1431 | |
| 1432 | debugf0(__FILE__ ": %s()\n", __func__); |
| 1433 | |
Dave Jiang | 456a2f9 | 2007-07-19 01:50:10 -0700 | [diff] [blame] | 1434 | if (i5000_pci) |
| 1435 | edac_pci_release_generic_ctl(i5000_pci); |
| 1436 | |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1437 | if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL) |
| 1438 | return; |
| 1439 | |
| 1440 | /* retrieve references to resources, and free those resources */ |
| 1441 | i5000_put_devices(mci); |
| 1442 | |
| 1443 | edac_mc_free(mci); |
| 1444 | } |
| 1445 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1446 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1447 | * pci_device_id table for which devices we are looking for |
| 1448 | * |
| 1449 | * The "E500P" device is the first device supported. |
| 1450 | */ |
| 1451 | static const struct pci_device_id i5000_pci_tbl[] __devinitdata = { |
| 1452 | {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_I5000_DEV16), |
| 1453 | .driver_data = I5000P}, |
| 1454 | |
| 1455 | {0,} /* 0 terminated list. */ |
| 1456 | }; |
| 1457 | |
| 1458 | MODULE_DEVICE_TABLE(pci, i5000_pci_tbl); |
| 1459 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1460 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1461 | * i5000_driver pci_driver structure for this module |
| 1462 | * |
| 1463 | */ |
| 1464 | static struct pci_driver i5000_driver = { |
Darrick J. Wong | 57510c2 | 2007-11-14 16:59:58 -0800 | [diff] [blame] | 1465 | .name = KBUILD_BASENAME, |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1466 | .probe = i5000_init_one, |
| 1467 | .remove = __devexit_p(i5000_remove_one), |
| 1468 | .id_table = i5000_pci_tbl, |
| 1469 | }; |
| 1470 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1471 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1472 | * i5000_init Module entry function |
| 1473 | * Try to initialize this module for its devices |
| 1474 | */ |
| 1475 | static int __init i5000_init(void) |
| 1476 | { |
| 1477 | int pci_rc; |
| 1478 | |
| 1479 | debugf2("MC: " __FILE__ ": %s()\n", __func__); |
| 1480 | |
| 1481 | pci_rc = pci_register_driver(&i5000_driver); |
| 1482 | |
| 1483 | return (pci_rc < 0) ? pci_rc : 0; |
| 1484 | } |
| 1485 | |
Douglas Thompson | b2ccaec | 2007-07-19 01:50:19 -0700 | [diff] [blame] | 1486 | /* |
Eric Wollesen | eb60705 | 2007-07-19 01:49:39 -0700 | [diff] [blame] | 1487 | * i5000_exit() Module exit function |
| 1488 | * Unregister the driver |
| 1489 | */ |
| 1490 | static void __exit i5000_exit(void) |
| 1491 | { |
| 1492 | debugf2("MC: " __FILE__ ": %s()\n", __func__); |
| 1493 | pci_unregister_driver(&i5000_driver); |
| 1494 | } |
| 1495 | |
| 1496 | module_init(i5000_init); |
| 1497 | module_exit(i5000_exit); |
| 1498 | |
| 1499 | MODULE_LICENSE("GPL"); |
| 1500 | MODULE_AUTHOR |
| 1501 | ("Linux Networx (http://lnxi.com) Doug Thompson <norsk5@xmission.com>"); |
| 1502 | MODULE_DESCRIPTION("MC Driver for Intel I5000 memory controllers - " |
Douglas Thompson | 052dfb4 | 2007-07-19 01:50:13 -0700 | [diff] [blame] | 1503 | I5000_REVISION); |
Dave Jiang | c0d1217 | 2007-07-19 01:49:46 -0700 | [diff] [blame] | 1504 | module_param(edac_op_state, int, 0444); |
| 1505 | MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); |