1 /* 2 * Copyright 2020 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 #include "umc_v8_7.h" 24 #include "amdgpu_ras.h" 25 #include "amdgpu_umc.h" 26 #include "amdgpu.h" 27 28 #include "rsmu/rsmu_0_0_2_offset.h" 29 #include "rsmu/rsmu_0_0_2_sh_mask.h" 30 #include "umc/umc_8_7_0_offset.h" 31 #include "umc/umc_8_7_0_sh_mask.h" 32 33 #define UMC_8_INST_DIST 0x40000 34 35 const uint32_t 36 umc_v8_7_channel_idx_tbl[UMC_V8_7_UMC_INSTANCE_NUM][UMC_V8_7_CHANNEL_INSTANCE_NUM] = { 37 {2, 11}, {4, 13}, 38 {1, 8}, {7, 14}, 39 {10, 3}, {12, 5}, 40 {9, 0}, {15, 6} 41 }; 42 43 static inline uint32_t get_umc_v8_7_reg_offset(struct amdgpu_device *adev, 44 uint32_t umc_inst, 45 uint32_t ch_inst) 46 { 47 return adev->umc.channel_offs*ch_inst + UMC_8_INST_DIST*umc_inst; 48 } 49 50 static void umc_v8_7_ecc_info_query_correctable_error_count(struct amdgpu_device *adev, 51 uint32_t umc_inst, uint32_t ch_inst, 52 unsigned long *error_count) 53 { 54 uint64_t mc_umc_status; 55 uint32_t eccinfo_table_idx; 56 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); 57 58 eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst; 59 60 /* check for SRAM correctable error 61 * MCUMC_STATUS is a 64 bit register 62 */ 63 mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status; 64 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 65 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1) 66 *error_count += 1; 67 } 68 69 static void umc_v8_7_ecc_info_querry_uncorrectable_error_count(struct amdgpu_device *adev, 70 uint32_t umc_inst, uint32_t ch_inst, 71 unsigned long *error_count) 72 { 73 uint64_t mc_umc_status; 74 uint32_t eccinfo_table_idx; 75 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); 76 77 eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst; 78 79 /* check the MCUMC_STATUS */ 80 mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status; 81 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) && 82 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 || 83 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 84 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 || 85 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 || 86 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1)) 87 *error_count += 1; 88 } 89 90 static void umc_v8_7_ecc_info_query_ras_error_count(struct amdgpu_device *adev, 91 void *ras_error_status) 92 { 93 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 94 95 uint32_t umc_inst = 0; 96 uint32_t ch_inst = 0; 97 98 /* TODO: driver needs to toggle DF Cstate to ensure 99 * safe access of UMC registers. Will add the protection 100 */ 101 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 102 umc_v8_7_ecc_info_query_correctable_error_count(adev, 103 umc_inst, ch_inst, 104 &(err_data->ce_count)); 105 umc_v8_7_ecc_info_querry_uncorrectable_error_count(adev, 106 umc_inst, ch_inst, 107 &(err_data->ue_count)); 108 } 109 } 110 111 static void umc_v8_7_ecc_info_query_error_address(struct amdgpu_device *adev, 112 struct ras_err_data *err_data, 113 uint32_t ch_inst, 114 uint32_t umc_inst) 115 { 116 uint64_t mc_umc_status, err_addr, retired_page; 117 uint32_t channel_index; 118 uint32_t eccinfo_table_idx; 119 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); 120 121 eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst; 122 channel_index = 123 adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst]; 124 125 mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status; 126 127 if (mc_umc_status == 0) 128 return; 129 130 if (!err_data->err_addr) 131 return; 132 133 /* calculate error address if ue/ce error is detected */ 134 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 135 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 136 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) { 137 138 err_addr = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_addr; 139 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr); 140 141 /* translate umc channel address to soc pa, 3 parts are included */ 142 retired_page = ADDR_OF_4KB_BLOCK(err_addr) | 143 ADDR_OF_256B_BLOCK(channel_index) | 144 OFFSET_IN_256B_BLOCK(err_addr); 145 146 /* we only save ue error information currently, ce is skipped */ 147 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) 148 == 1) 149 amdgpu_umc_fill_error_record(err_data, err_addr, 150 retired_page, channel_index, umc_inst); 151 } 152 } 153 154 static void umc_v8_7_ecc_info_query_ras_error_address(struct amdgpu_device *adev, 155 void *ras_error_status) 156 { 157 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 158 159 uint32_t umc_inst = 0; 160 uint32_t ch_inst = 0; 161 162 /* TODO: driver needs to toggle DF Cstate to ensure 163 * safe access of UMC resgisters. Will add the protection 164 * when firmware interface is ready 165 */ 166 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 167 umc_v8_7_ecc_info_query_error_address(adev, 168 err_data, 169 ch_inst, 170 umc_inst); 171 } 172 } 173 174 static void umc_v8_7_clear_error_count_per_channel(struct amdgpu_device *adev, 175 uint32_t umc_reg_offset) 176 { 177 uint32_t ecc_err_cnt_addr; 178 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 179 180 ecc_err_cnt_sel_addr = 181 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 182 ecc_err_cnt_addr = 183 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 184 185 /* select the lower chip */ 186 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + 187 umc_reg_offset) * 4); 188 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, 189 UMCCH0_0_GeccErrCntSel, 190 GeccErrCntCsSel, 0); 191 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, 192 ecc_err_cnt_sel); 193 194 /* clear lower chip error count */ 195 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, 196 UMC_V8_7_CE_CNT_INIT); 197 198 /* select the higher chip */ 199 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + 200 umc_reg_offset) * 4); 201 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, 202 UMCCH0_0_GeccErrCntSel, 203 GeccErrCntCsSel, 1); 204 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, 205 ecc_err_cnt_sel); 206 207 /* clear higher chip error count */ 208 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, 209 UMC_V8_7_CE_CNT_INIT); 210 } 211 212 static void umc_v8_7_clear_error_count(struct amdgpu_device *adev) 213 { 214 uint32_t umc_inst = 0; 215 uint32_t ch_inst = 0; 216 uint32_t umc_reg_offset = 0; 217 218 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 219 umc_reg_offset = get_umc_v8_7_reg_offset(adev, 220 umc_inst, 221 ch_inst); 222 223 umc_v8_7_clear_error_count_per_channel(adev, 224 umc_reg_offset); 225 } 226 } 227 228 static void umc_v8_7_query_correctable_error_count(struct amdgpu_device *adev, 229 uint32_t umc_reg_offset, 230 unsigned long *error_count) 231 { 232 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 233 uint32_t ecc_err_cnt, ecc_err_cnt_addr; 234 uint64_t mc_umc_status; 235 uint32_t mc_umc_status_addr; 236 237 /* UMC 8_7_2 registers */ 238 ecc_err_cnt_sel_addr = 239 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 240 ecc_err_cnt_addr = 241 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 242 mc_umc_status_addr = 243 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 244 245 /* select the lower chip and check the error count */ 246 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4); 247 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 248 GeccErrCntCsSel, 0); 249 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 250 251 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); 252 *error_count += 253 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) - 254 UMC_V8_7_CE_CNT_INIT); 255 256 /* select the higher chip and check the err counter */ 257 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 258 GeccErrCntCsSel, 1); 259 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 260 261 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); 262 *error_count += 263 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) - 264 UMC_V8_7_CE_CNT_INIT); 265 266 /* check for SRAM correctable error 267 MCUMC_STATUS is a 64 bit register */ 268 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 269 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 && 270 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 271 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1) 272 *error_count += 1; 273 } 274 275 static void umc_v8_7_querry_uncorrectable_error_count(struct amdgpu_device *adev, 276 uint32_t umc_reg_offset, 277 unsigned long *error_count) 278 { 279 uint64_t mc_umc_status; 280 uint32_t mc_umc_status_addr; 281 282 mc_umc_status_addr = SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 283 284 /* check the MCUMC_STATUS */ 285 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 286 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) && 287 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 || 288 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 289 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 || 290 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 || 291 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1)) 292 *error_count += 1; 293 } 294 295 static void umc_v8_7_query_ras_error_count(struct amdgpu_device *adev, 296 void *ras_error_status) 297 { 298 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 299 300 uint32_t umc_inst = 0; 301 uint32_t ch_inst = 0; 302 uint32_t umc_reg_offset = 0; 303 304 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 305 umc_reg_offset = get_umc_v8_7_reg_offset(adev, 306 umc_inst, 307 ch_inst); 308 309 umc_v8_7_query_correctable_error_count(adev, 310 umc_reg_offset, 311 &(err_data->ce_count)); 312 umc_v8_7_querry_uncorrectable_error_count(adev, 313 umc_reg_offset, 314 &(err_data->ue_count)); 315 } 316 317 umc_v8_7_clear_error_count(adev); 318 } 319 320 static void umc_v8_7_query_error_address(struct amdgpu_device *adev, 321 struct ras_err_data *err_data, 322 uint32_t umc_reg_offset, 323 uint32_t ch_inst, 324 uint32_t umc_inst) 325 { 326 uint32_t lsb, mc_umc_status_addr; 327 uint64_t mc_umc_status, err_addr, retired_page, mc_umc_addrt0; 328 uint32_t channel_index = adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst]; 329 330 mc_umc_status_addr = 331 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 332 mc_umc_addrt0 = 333 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_ADDRT0); 334 335 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 336 337 if (mc_umc_status == 0) 338 return; 339 340 if (!err_data->err_addr) { 341 /* clear umc status */ 342 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL); 343 return; 344 } 345 346 /* calculate error address if ue/ce error is detected */ 347 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 348 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 349 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) { 350 351 err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4); 352 /* the lowest lsb bits should be ignored */ 353 lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB); 354 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr); 355 err_addr &= ~((0x1ULL << lsb) - 1); 356 357 /* translate umc channel address to soc pa, 3 parts are included */ 358 retired_page = ADDR_OF_4KB_BLOCK(err_addr) | 359 ADDR_OF_256B_BLOCK(channel_index) | 360 OFFSET_IN_256B_BLOCK(err_addr); 361 362 /* we only save ue error information currently, ce is skipped */ 363 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) 364 == 1) 365 amdgpu_umc_fill_error_record(err_data, err_addr, 366 retired_page, channel_index, umc_inst); 367 } 368 369 /* clear umc status */ 370 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL); 371 } 372 373 static void umc_v8_7_query_ras_error_address(struct amdgpu_device *adev, 374 void *ras_error_status) 375 { 376 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 377 378 uint32_t umc_inst = 0; 379 uint32_t ch_inst = 0; 380 uint32_t umc_reg_offset = 0; 381 382 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 383 umc_reg_offset = get_umc_v8_7_reg_offset(adev, 384 umc_inst, 385 ch_inst); 386 387 umc_v8_7_query_error_address(adev, 388 err_data, 389 umc_reg_offset, 390 ch_inst, 391 umc_inst); 392 } 393 } 394 395 static void umc_v8_7_err_cnt_init_per_channel(struct amdgpu_device *adev, 396 uint32_t umc_reg_offset) 397 { 398 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 399 uint32_t ecc_err_cnt_addr; 400 401 ecc_err_cnt_sel_addr = 402 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 403 ecc_err_cnt_addr = 404 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 405 406 /* select the lower chip and check the error count */ 407 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4); 408 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 409 GeccErrCntCsSel, 0); 410 /* set ce error interrupt type to APIC based interrupt */ 411 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 412 GeccErrInt, 0x1); 413 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 414 /* set error count to initial value */ 415 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT); 416 417 /* select the higher chip and check the err counter */ 418 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 419 GeccErrCntCsSel, 1); 420 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 421 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT); 422 } 423 424 static void umc_v8_7_err_cnt_init(struct amdgpu_device *adev) 425 { 426 uint32_t umc_inst = 0; 427 uint32_t ch_inst = 0; 428 uint32_t umc_reg_offset = 0; 429 430 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 431 umc_reg_offset = get_umc_v8_7_reg_offset(adev, 432 umc_inst, 433 ch_inst); 434 435 umc_v8_7_err_cnt_init_per_channel(adev, umc_reg_offset); 436 } 437 } 438 439 const struct amdgpu_ras_block_hw_ops umc_v8_7_ras_hw_ops = { 440 .query_ras_error_count = umc_v8_7_query_ras_error_count, 441 .query_ras_error_address = umc_v8_7_query_ras_error_address, 442 }; 443 444 struct amdgpu_umc_ras umc_v8_7_ras = { 445 .ras_block = { 446 .hw_ops = &umc_v8_7_ras_hw_ops, 447 }, 448 .err_cnt_init = umc_v8_7_err_cnt_init, 449 .ecc_info_query_ras_error_count = umc_v8_7_ecc_info_query_ras_error_count, 450 .ecc_info_query_ras_error_address = umc_v8_7_ecc_info_query_ras_error_address, 451 }; 452