1 /* 2 * Copyright 2019 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 24 #include <linux/sort.h> 25 #include "amdgpu.h" 26 #include "umc_v6_7.h" 27 #define MAX_UMC_POISON_POLLING_TIME_SYNC 20 //ms 28 29 #define MAX_UMC_HASH_STRING_SIZE 256 30 31 static int amdgpu_umc_convert_error_address(struct amdgpu_device *adev, 32 struct ras_err_data *err_data, uint64_t err_addr, 33 uint32_t ch_inst, uint32_t umc_inst) 34 { 35 switch (amdgpu_ip_version(adev, UMC_HWIP, 0)) { 36 case IP_VERSION(6, 7, 0): 37 umc_v6_7_convert_error_address(adev, 38 err_data, err_addr, ch_inst, umc_inst); 39 break; 40 default: 41 dev_warn(adev->dev, 42 "UMC address to Physical address translation is not supported\n"); 43 return AMDGPU_RAS_FAIL; 44 } 45 46 return AMDGPU_RAS_SUCCESS; 47 } 48 49 int amdgpu_umc_page_retirement_mca(struct amdgpu_device *adev, 50 uint64_t err_addr, uint32_t ch_inst, uint32_t umc_inst) 51 { 52 struct ras_err_data err_data; 53 int ret; 54 55 ret = amdgpu_ras_error_data_init(&err_data); 56 if (ret) 57 return ret; 58 59 err_data.err_addr = 60 kcalloc(adev->umc.max_ras_err_cnt_per_query, 61 sizeof(struct eeprom_table_record), GFP_KERNEL); 62 if (!err_data.err_addr) { 63 dev_warn(adev->dev, 64 "Failed to alloc memory for umc error record in MCA notifier!\n"); 65 ret = AMDGPU_RAS_FAIL; 66 goto out_fini_err_data; 67 } 68 69 err_data.err_addr_len = adev->umc.max_ras_err_cnt_per_query; 70 71 /* 72 * Translate UMC channel address to Physical address 73 */ 74 ret = amdgpu_umc_convert_error_address(adev, &err_data, err_addr, 75 ch_inst, umc_inst); 76 if (ret) 77 goto out_free_err_addr; 78 79 if (amdgpu_bad_page_threshold != 0) { 80 amdgpu_ras_add_bad_pages(adev, err_data.err_addr, 81 err_data.err_addr_cnt, false); 82 amdgpu_ras_save_bad_pages(adev, NULL); 83 } 84 85 out_free_err_addr: 86 kfree(err_data.err_addr); 87 88 out_fini_err_data: 89 amdgpu_ras_error_data_fini(&err_data); 90 91 return ret; 92 } 93 94 void amdgpu_umc_handle_bad_pages(struct amdgpu_device *adev, 95 void *ras_error_status) 96 { 97 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 98 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 99 unsigned int error_query_mode; 100 int ret = 0; 101 unsigned long err_count; 102 103 amdgpu_ras_get_error_query_mode(adev, &error_query_mode); 104 105 mutex_lock(&con->page_retirement_lock); 106 ret = amdgpu_dpm_get_ecc_info(adev, (void *)&(con->umc_ecc)); 107 if (ret == -EOPNOTSUPP && 108 error_query_mode == AMDGPU_RAS_DIRECT_ERROR_QUERY) { 109 if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops && 110 adev->umc.ras->ras_block.hw_ops->query_ras_error_count) 111 adev->umc.ras->ras_block.hw_ops->query_ras_error_count(adev, ras_error_status); 112 113 if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops && 114 adev->umc.ras->ras_block.hw_ops->query_ras_error_address && 115 adev->umc.max_ras_err_cnt_per_query) { 116 err_data->err_addr = 117 kcalloc(adev->umc.max_ras_err_cnt_per_query, 118 sizeof(struct eeprom_table_record), GFP_KERNEL); 119 120 /* still call query_ras_error_address to clear error status 121 * even NOMEM error is encountered 122 */ 123 if(!err_data->err_addr) 124 dev_warn(adev->dev, "Failed to alloc memory for " 125 "umc error address record!\n"); 126 else 127 err_data->err_addr_len = adev->umc.max_ras_err_cnt_per_query; 128 129 /* umc query_ras_error_address is also responsible for clearing 130 * error status 131 */ 132 adev->umc.ras->ras_block.hw_ops->query_ras_error_address(adev, ras_error_status); 133 } 134 } else if (error_query_mode == AMDGPU_RAS_FIRMWARE_ERROR_QUERY || 135 (!ret && error_query_mode == AMDGPU_RAS_DIRECT_ERROR_QUERY)) { 136 if (adev->umc.ras && 137 adev->umc.ras->ecc_info_query_ras_error_count) 138 adev->umc.ras->ecc_info_query_ras_error_count(adev, ras_error_status); 139 140 if (adev->umc.ras && 141 adev->umc.ras->ecc_info_query_ras_error_address && 142 adev->umc.max_ras_err_cnt_per_query) { 143 err_data->err_addr = 144 kcalloc(adev->umc.max_ras_err_cnt_per_query, 145 sizeof(struct eeprom_table_record), GFP_KERNEL); 146 147 /* still call query_ras_error_address to clear error status 148 * even NOMEM error is encountered 149 */ 150 if(!err_data->err_addr) 151 dev_warn(adev->dev, "Failed to alloc memory for " 152 "umc error address record!\n"); 153 else 154 err_data->err_addr_len = adev->umc.max_ras_err_cnt_per_query; 155 156 /* umc query_ras_error_address is also responsible for clearing 157 * error status 158 */ 159 adev->umc.ras->ecc_info_query_ras_error_address(adev, ras_error_status); 160 } 161 } 162 163 /* only uncorrectable error needs gpu reset */ 164 if (err_data->ue_count || err_data->de_count) { 165 err_count = err_data->ue_count + err_data->de_count; 166 if ((amdgpu_bad_page_threshold != 0) && 167 err_data->err_addr_cnt) { 168 amdgpu_ras_add_bad_pages(adev, err_data->err_addr, 169 err_data->err_addr_cnt, false); 170 amdgpu_ras_save_bad_pages(adev, &err_count); 171 172 amdgpu_dpm_send_hbm_bad_pages_num(adev, 173 con->eeprom_control.ras_num_bad_pages); 174 175 if (con->update_channel_flag == true) { 176 amdgpu_dpm_send_hbm_bad_channel_flag(adev, con->eeprom_control.bad_channel_bitmap); 177 con->update_channel_flag = false; 178 } 179 } 180 } 181 182 kfree(err_data->err_addr); 183 err_data->err_addr = NULL; 184 185 mutex_unlock(&con->page_retirement_lock); 186 } 187 188 static int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev, 189 void *ras_error_status, 190 struct amdgpu_iv_entry *entry, 191 uint32_t reset) 192 { 193 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 194 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 195 196 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); 197 amdgpu_umc_handle_bad_pages(adev, ras_error_status); 198 199 if ((err_data->ue_count || err_data->de_count) && 200 (reset || amdgpu_ras_is_rma(adev))) { 201 con->gpu_reset_flags |= reset; 202 amdgpu_ras_reset_gpu(adev); 203 } 204 205 return AMDGPU_RAS_SUCCESS; 206 } 207 208 int amdgpu_umc_pasid_poison_handler(struct amdgpu_device *adev, 209 enum amdgpu_ras_block block, uint16_t pasid, 210 pasid_notify pasid_fn, void *data, uint32_t reset) 211 { 212 int ret = AMDGPU_RAS_SUCCESS; 213 214 if (adev->gmc.xgmi.connected_to_cpu || 215 adev->gmc.is_app_apu) { 216 if (reset) { 217 /* MCA poison handler is only responsible for GPU reset, 218 * let MCA notifier do page retirement. 219 */ 220 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); 221 amdgpu_ras_reset_gpu(adev); 222 } 223 return ret; 224 } 225 226 if (!amdgpu_sriov_vf(adev)) { 227 if (amdgpu_ip_version(adev, UMC_HWIP, 0) < IP_VERSION(12, 0, 0)) { 228 struct ras_err_data err_data; 229 struct ras_common_if head = { 230 .block = AMDGPU_RAS_BLOCK__UMC, 231 }; 232 struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head); 233 234 ret = amdgpu_ras_error_data_init(&err_data); 235 if (ret) 236 return ret; 237 238 ret = amdgpu_umc_do_page_retirement(adev, &err_data, NULL, reset); 239 240 if (ret == AMDGPU_RAS_SUCCESS && obj) { 241 obj->err_data.ue_count += err_data.ue_count; 242 obj->err_data.ce_count += err_data.ce_count; 243 obj->err_data.de_count += err_data.de_count; 244 } 245 246 amdgpu_ras_error_data_fini(&err_data); 247 } else { 248 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 249 int ret; 250 251 ret = amdgpu_ras_put_poison_req(adev, 252 block, pasid, pasid_fn, data, reset); 253 if (!ret) { 254 atomic_inc(&con->page_retirement_req_cnt); 255 wake_up(&con->page_retirement_wq); 256 } 257 } 258 } else { 259 if (adev->virt.ops && adev->virt.ops->ras_poison_handler) 260 adev->virt.ops->ras_poison_handler(adev, block); 261 else 262 dev_warn(adev->dev, 263 "No ras_poison_handler interface in SRIOV!\n"); 264 } 265 266 return ret; 267 } 268 269 int amdgpu_umc_poison_handler(struct amdgpu_device *adev, 270 enum amdgpu_ras_block block, uint32_t reset) 271 { 272 return amdgpu_umc_pasid_poison_handler(adev, 273 block, 0, NULL, NULL, reset); 274 } 275 276 int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev, 277 void *ras_error_status, 278 struct amdgpu_iv_entry *entry) 279 { 280 return amdgpu_umc_do_page_retirement(adev, ras_error_status, entry, 281 AMDGPU_RAS_GPU_RESET_MODE1_RESET); 282 } 283 284 int amdgpu_umc_ras_sw_init(struct amdgpu_device *adev) 285 { 286 int err; 287 struct amdgpu_umc_ras *ras; 288 289 if (!adev->umc.ras) 290 return 0; 291 292 ras = adev->umc.ras; 293 294 err = amdgpu_ras_register_ras_block(adev, &ras->ras_block); 295 if (err) { 296 dev_err(adev->dev, "Failed to register umc ras block!\n"); 297 return err; 298 } 299 300 strcpy(adev->umc.ras->ras_block.ras_comm.name, "umc"); 301 ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__UMC; 302 ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE; 303 adev->umc.ras_if = &ras->ras_block.ras_comm; 304 305 if (!ras->ras_block.ras_late_init) 306 ras->ras_block.ras_late_init = amdgpu_umc_ras_late_init; 307 308 if (!ras->ras_block.ras_cb) 309 ras->ras_block.ras_cb = amdgpu_umc_process_ras_data_cb; 310 311 return 0; 312 } 313 314 int amdgpu_umc_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block) 315 { 316 int r; 317 318 r = amdgpu_ras_block_late_init(adev, ras_block); 319 if (r) 320 return r; 321 322 if (amdgpu_sriov_vf(adev)) 323 return r; 324 325 if (amdgpu_ras_is_supported(adev, ras_block->block)) { 326 r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0); 327 if (r) 328 goto late_fini; 329 } 330 331 /* ras init of specific umc version */ 332 if (adev->umc.ras && 333 adev->umc.ras->err_cnt_init) 334 adev->umc.ras->err_cnt_init(adev); 335 336 return 0; 337 338 late_fini: 339 amdgpu_ras_block_late_fini(adev, ras_block); 340 return r; 341 } 342 343 int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev, 344 struct amdgpu_irq_src *source, 345 struct amdgpu_iv_entry *entry) 346 { 347 struct ras_common_if *ras_if = adev->umc.ras_if; 348 struct ras_dispatch_if ih_data = { 349 .entry = entry, 350 }; 351 352 if (!ras_if) 353 return 0; 354 355 ih_data.head = *ras_if; 356 357 amdgpu_ras_interrupt_dispatch(adev, &ih_data); 358 return 0; 359 } 360 361 int amdgpu_umc_fill_error_record(struct ras_err_data *err_data, 362 uint64_t err_addr, 363 uint64_t retired_page, 364 uint32_t channel_index, 365 uint32_t umc_inst) 366 { 367 struct eeprom_table_record *err_rec; 368 369 if (!err_data || 370 !err_data->err_addr || 371 (err_data->err_addr_cnt >= err_data->err_addr_len)) 372 return -EINVAL; 373 374 err_rec = &err_data->err_addr[err_data->err_addr_cnt]; 375 376 err_rec->address = err_addr; 377 /* page frame address is saved */ 378 err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT; 379 err_rec->ts = (uint64_t)ktime_get_real_seconds(); 380 err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE; 381 err_rec->cu = 0; 382 err_rec->mem_channel = channel_index; 383 err_rec->mcumc_id = umc_inst; 384 385 err_data->err_addr_cnt++; 386 387 return 0; 388 } 389 390 int amdgpu_umc_loop_channels(struct amdgpu_device *adev, 391 umc_func func, void *data) 392 { 393 uint32_t node_inst = 0; 394 uint32_t umc_inst = 0; 395 uint32_t ch_inst = 0; 396 int ret = 0; 397 398 if (adev->umc.node_inst_num) { 399 LOOP_UMC_EACH_NODE_INST_AND_CH(node_inst, umc_inst, ch_inst) { 400 ret = func(adev, node_inst, umc_inst, ch_inst, data); 401 if (ret) { 402 dev_err(adev->dev, "Node %d umc %d ch %d func returns %d\n", 403 node_inst, umc_inst, ch_inst, ret); 404 return ret; 405 } 406 } 407 } else { 408 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 409 ret = func(adev, 0, umc_inst, ch_inst, data); 410 if (ret) { 411 dev_err(adev->dev, "Umc %d ch %d func returns %d\n", 412 umc_inst, ch_inst, ret); 413 return ret; 414 } 415 } 416 } 417 418 return 0; 419 } 420 421 int amdgpu_umc_update_ecc_status(struct amdgpu_device *adev, 422 uint64_t status, uint64_t ipid, uint64_t addr) 423 { 424 if (adev->umc.ras->update_ecc_status) 425 return adev->umc.ras->update_ecc_status(adev, 426 status, ipid, addr); 427 return 0; 428 } 429 430 int amdgpu_umc_logs_ecc_err(struct amdgpu_device *adev, 431 struct radix_tree_root *ecc_tree, struct ras_ecc_err *ecc_err) 432 { 433 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 434 struct ras_ecc_log_info *ecc_log; 435 int ret; 436 437 ecc_log = &con->umc_ecc_log; 438 439 mutex_lock(&ecc_log->lock); 440 ret = radix_tree_insert(ecc_tree, ecc_err->pa_pfn, ecc_err); 441 if (!ret) 442 radix_tree_tag_set(ecc_tree, 443 ecc_err->pa_pfn, UMC_ECC_NEW_DETECTED_TAG); 444 mutex_unlock(&ecc_log->lock); 445 446 return ret; 447 } 448 449 int amdgpu_umc_pages_in_a_row(struct amdgpu_device *adev, 450 struct ras_err_data *err_data, uint64_t pa_addr) 451 { 452 struct ta_ras_query_address_output addr_out; 453 454 /* reinit err_data */ 455 err_data->err_addr_cnt = 0; 456 err_data->err_addr_len = adev->umc.retire_unit; 457 458 addr_out.pa.pa = pa_addr; 459 if (adev->umc.ras && adev->umc.ras->convert_ras_err_addr) 460 return adev->umc.ras->convert_ras_err_addr(adev, err_data, NULL, 461 &addr_out, false); 462 else 463 return -EINVAL; 464 } 465 466 int amdgpu_umc_lookup_bad_pages_in_a_row(struct amdgpu_device *adev, 467 uint64_t pa_addr, uint64_t *pfns, int len) 468 { 469 int i, ret; 470 struct ras_err_data err_data; 471 472 err_data.err_addr = kcalloc(adev->umc.retire_unit, 473 sizeof(struct eeprom_table_record), GFP_KERNEL); 474 if (!err_data.err_addr) { 475 dev_warn(adev->dev, "Failed to alloc memory in bad page lookup!\n"); 476 return 0; 477 } 478 479 ret = amdgpu_umc_pages_in_a_row(adev, &err_data, pa_addr); 480 if (ret) 481 goto out; 482 483 for (i = 0; i < adev->umc.retire_unit; i++) { 484 if (i >= len) 485 goto out; 486 487 pfns[i] = err_data.err_addr[i].retired_page; 488 } 489 ret = i; 490 491 out: 492 kfree(err_data.err_addr); 493 return ret; 494 } 495 496 int amdgpu_umc_mca_to_addr(struct amdgpu_device *adev, 497 uint64_t err_addr, uint32_t ch, uint32_t umc, 498 uint32_t node, uint32_t socket, 499 struct ta_ras_query_address_output *addr_out, bool dump_addr) 500 { 501 struct ta_ras_query_address_input addr_in; 502 int ret; 503 504 memset(&addr_in, 0, sizeof(addr_in)); 505 addr_in.ma.err_addr = err_addr; 506 addr_in.ma.ch_inst = ch; 507 addr_in.ma.umc_inst = umc; 508 addr_in.ma.node_inst = node; 509 addr_in.ma.socket_id = socket; 510 511 if (adev->umc.ras && adev->umc.ras->convert_ras_err_addr) { 512 ret = adev->umc.ras->convert_ras_err_addr(adev, NULL, &addr_in, 513 addr_out, dump_addr); 514 if (ret) 515 return ret; 516 } else { 517 return 0; 518 } 519 520 return 0; 521 } 522