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 "amdgpu.h" 25 #include "umc_v6_7.h" 26 #define MAX_UMC_POISON_POLLING_TIME_SYNC 20 //ms 27 28 static int amdgpu_umc_convert_error_address(struct amdgpu_device *adev, 29 struct ras_err_data *err_data, uint64_t err_addr, 30 uint32_t ch_inst, uint32_t umc_inst) 31 { 32 switch (amdgpu_ip_version(adev, UMC_HWIP, 0)) { 33 case IP_VERSION(6, 7, 0): 34 umc_v6_7_convert_error_address(adev, 35 err_data, err_addr, ch_inst, umc_inst); 36 break; 37 default: 38 dev_warn(adev->dev, 39 "UMC address to Physical address translation is not supported\n"); 40 return AMDGPU_RAS_FAIL; 41 } 42 43 return AMDGPU_RAS_SUCCESS; 44 } 45 46 int amdgpu_umc_page_retirement_mca(struct amdgpu_device *adev, 47 uint64_t err_addr, uint32_t ch_inst, uint32_t umc_inst) 48 { 49 struct ras_err_data err_data; 50 int ret; 51 52 ret = amdgpu_ras_error_data_init(&err_data); 53 if (ret) 54 return ret; 55 56 err_data.err_addr = 57 kcalloc(adev->umc.max_ras_err_cnt_per_query, 58 sizeof(struct eeprom_table_record), GFP_KERNEL); 59 if (!err_data.err_addr) { 60 dev_warn(adev->dev, 61 "Failed to alloc memory for umc error record in MCA notifier!\n"); 62 ret = AMDGPU_RAS_FAIL; 63 goto out_fini_err_data; 64 } 65 66 /* 67 * Translate UMC channel address to Physical address 68 */ 69 ret = amdgpu_umc_convert_error_address(adev, &err_data, err_addr, 70 ch_inst, umc_inst); 71 if (ret) 72 goto out_free_err_addr; 73 74 if (amdgpu_bad_page_threshold != 0) { 75 amdgpu_ras_add_bad_pages(adev, err_data.err_addr, 76 err_data.err_addr_cnt); 77 amdgpu_ras_save_bad_pages(adev, NULL); 78 } 79 80 out_free_err_addr: 81 kfree(err_data.err_addr); 82 83 out_fini_err_data: 84 amdgpu_ras_error_data_fini(&err_data); 85 86 return ret; 87 } 88 89 static void amdgpu_umc_handle_bad_pages(struct amdgpu_device *adev, 90 void *ras_error_status) 91 { 92 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 93 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 94 unsigned int error_query_mode; 95 int ret = 0; 96 unsigned long err_count; 97 98 amdgpu_ras_get_error_query_mode(adev, &error_query_mode); 99 100 mutex_lock(&con->page_retirement_lock); 101 ret = amdgpu_dpm_get_ecc_info(adev, (void *)&(con->umc_ecc)); 102 if (ret == -EOPNOTSUPP && 103 error_query_mode == AMDGPU_RAS_DIRECT_ERROR_QUERY) { 104 if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops && 105 adev->umc.ras->ras_block.hw_ops->query_ras_error_count) 106 adev->umc.ras->ras_block.hw_ops->query_ras_error_count(adev, ras_error_status); 107 108 if (adev->umc.ras && adev->umc.ras->ras_block.hw_ops && 109 adev->umc.ras->ras_block.hw_ops->query_ras_error_address && 110 adev->umc.max_ras_err_cnt_per_query) { 111 err_data->err_addr = 112 kcalloc(adev->umc.max_ras_err_cnt_per_query, 113 sizeof(struct eeprom_table_record), GFP_KERNEL); 114 115 /* still call query_ras_error_address to clear error status 116 * even NOMEM error is encountered 117 */ 118 if(!err_data->err_addr) 119 dev_warn(adev->dev, "Failed to alloc memory for " 120 "umc error address record!\n"); 121 122 /* umc query_ras_error_address is also responsible for clearing 123 * error status 124 */ 125 adev->umc.ras->ras_block.hw_ops->query_ras_error_address(adev, ras_error_status); 126 } 127 } else if (error_query_mode == AMDGPU_RAS_FIRMWARE_ERROR_QUERY || 128 (!ret && error_query_mode == AMDGPU_RAS_DIRECT_ERROR_QUERY)) { 129 if (adev->umc.ras && 130 adev->umc.ras->ecc_info_query_ras_error_count) 131 adev->umc.ras->ecc_info_query_ras_error_count(adev, ras_error_status); 132 133 if (adev->umc.ras && 134 adev->umc.ras->ecc_info_query_ras_error_address && 135 adev->umc.max_ras_err_cnt_per_query) { 136 err_data->err_addr = 137 kcalloc(adev->umc.max_ras_err_cnt_per_query, 138 sizeof(struct eeprom_table_record), GFP_KERNEL); 139 140 /* still call query_ras_error_address to clear error status 141 * even NOMEM error is encountered 142 */ 143 if(!err_data->err_addr) 144 dev_warn(adev->dev, "Failed to alloc memory for " 145 "umc error address record!\n"); 146 147 /* umc query_ras_error_address is also responsible for clearing 148 * error status 149 */ 150 adev->umc.ras->ecc_info_query_ras_error_address(adev, ras_error_status); 151 } 152 } 153 154 /* only uncorrectable error needs gpu reset */ 155 if (err_data->ue_count || err_data->de_count) { 156 err_count = err_data->ue_count + err_data->de_count; 157 if ((amdgpu_bad_page_threshold != 0) && 158 err_data->err_addr_cnt) { 159 amdgpu_ras_add_bad_pages(adev, err_data->err_addr, 160 err_data->err_addr_cnt); 161 amdgpu_ras_save_bad_pages(adev, &err_count); 162 163 amdgpu_dpm_send_hbm_bad_pages_num(adev, con->eeprom_control.ras_num_recs); 164 165 if (con->update_channel_flag == true) { 166 amdgpu_dpm_send_hbm_bad_channel_flag(adev, con->eeprom_control.bad_channel_bitmap); 167 con->update_channel_flag = false; 168 } 169 } 170 } 171 172 kfree(err_data->err_addr); 173 174 mutex_unlock(&con->page_retirement_lock); 175 } 176 177 static int amdgpu_umc_do_page_retirement(struct amdgpu_device *adev, 178 void *ras_error_status, 179 struct amdgpu_iv_entry *entry, 180 bool reset) 181 { 182 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 183 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 184 185 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); 186 amdgpu_umc_handle_bad_pages(adev, ras_error_status); 187 188 if (err_data->ue_count && reset) { 189 /* use mode-2 reset for poison consumption */ 190 if (!entry) 191 con->gpu_reset_flags |= AMDGPU_RAS_GPU_RESET_MODE2_RESET; 192 amdgpu_ras_reset_gpu(adev); 193 } 194 195 return AMDGPU_RAS_SUCCESS; 196 } 197 198 int amdgpu_umc_bad_page_polling_timeout(struct amdgpu_device *adev, 199 bool reset, uint32_t timeout_ms) 200 { 201 struct ras_err_data err_data; 202 struct ras_common_if head = { 203 .block = AMDGPU_RAS_BLOCK__UMC, 204 }; 205 struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head); 206 uint32_t timeout = timeout_ms; 207 208 memset(&err_data, 0, sizeof(err_data)); 209 amdgpu_ras_error_data_init(&err_data); 210 211 do { 212 213 amdgpu_umc_handle_bad_pages(adev, &err_data); 214 215 if (timeout && !err_data.de_count) { 216 msleep(1); 217 timeout--; 218 } 219 220 } while (timeout && !err_data.de_count); 221 222 if (!timeout) 223 dev_warn(adev->dev, "Can't find bad pages\n"); 224 225 if (err_data.de_count) 226 dev_info(adev->dev, "%ld new deferred hardware errors detected\n", err_data.de_count); 227 228 if (obj) { 229 obj->err_data.ue_count += err_data.ue_count; 230 obj->err_data.ce_count += err_data.ce_count; 231 obj->err_data.de_count += err_data.de_count; 232 } 233 234 amdgpu_ras_error_data_fini(&err_data); 235 236 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); 237 238 if (reset) { 239 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 240 241 /* use mode-2 reset for poison consumption */ 242 con->gpu_reset_flags |= AMDGPU_RAS_GPU_RESET_MODE2_RESET; 243 amdgpu_ras_reset_gpu(adev); 244 } 245 246 return 0; 247 } 248 249 int amdgpu_umc_poison_handler(struct amdgpu_device *adev, bool reset) 250 { 251 int ret = AMDGPU_RAS_SUCCESS; 252 253 if (adev->gmc.xgmi.connected_to_cpu || 254 adev->gmc.is_app_apu) { 255 if (reset) { 256 /* MCA poison handler is only responsible for GPU reset, 257 * let MCA notifier do page retirement. 258 */ 259 kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); 260 amdgpu_ras_reset_gpu(adev); 261 } 262 return ret; 263 } 264 265 if (!amdgpu_sriov_vf(adev)) { 266 if (amdgpu_ip_version(adev, UMC_HWIP, 0) < IP_VERSION(12, 0, 0)) { 267 struct ras_err_data err_data; 268 struct ras_common_if head = { 269 .block = AMDGPU_RAS_BLOCK__UMC, 270 }; 271 struct ras_manager *obj = amdgpu_ras_find_obj(adev, &head); 272 273 ret = amdgpu_ras_error_data_init(&err_data); 274 if (ret) 275 return ret; 276 277 ret = amdgpu_umc_do_page_retirement(adev, &err_data, NULL, reset); 278 279 if (ret == AMDGPU_RAS_SUCCESS && obj) { 280 obj->err_data.ue_count += err_data.ue_count; 281 obj->err_data.ce_count += err_data.ce_count; 282 obj->err_data.de_count += err_data.de_count; 283 } 284 285 amdgpu_ras_error_data_fini(&err_data); 286 } else { 287 if (reset) { 288 amdgpu_umc_bad_page_polling_timeout(adev, 289 reset, MAX_UMC_POISON_POLLING_TIME_SYNC); 290 } else { 291 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 292 293 atomic_inc(&con->page_retirement_req_cnt); 294 295 wake_up(&con->page_retirement_wq); 296 } 297 } 298 } else { 299 if (adev->virt.ops && adev->virt.ops->ras_poison_handler) 300 adev->virt.ops->ras_poison_handler(adev); 301 else 302 dev_warn(adev->dev, 303 "No ras_poison_handler interface in SRIOV!\n"); 304 } 305 306 return ret; 307 } 308 309 int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev, 310 void *ras_error_status, 311 struct amdgpu_iv_entry *entry) 312 { 313 return amdgpu_umc_do_page_retirement(adev, ras_error_status, entry, true); 314 } 315 316 int amdgpu_umc_ras_sw_init(struct amdgpu_device *adev) 317 { 318 int err; 319 struct amdgpu_umc_ras *ras; 320 321 if (!adev->umc.ras) 322 return 0; 323 324 ras = adev->umc.ras; 325 326 err = amdgpu_ras_register_ras_block(adev, &ras->ras_block); 327 if (err) { 328 dev_err(adev->dev, "Failed to register umc ras block!\n"); 329 return err; 330 } 331 332 strcpy(adev->umc.ras->ras_block.ras_comm.name, "umc"); 333 ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__UMC; 334 ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE; 335 adev->umc.ras_if = &ras->ras_block.ras_comm; 336 337 if (!ras->ras_block.ras_late_init) 338 ras->ras_block.ras_late_init = amdgpu_umc_ras_late_init; 339 340 if (!ras->ras_block.ras_cb) 341 ras->ras_block.ras_cb = amdgpu_umc_process_ras_data_cb; 342 343 return 0; 344 } 345 346 int amdgpu_umc_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block) 347 { 348 int r; 349 350 r = amdgpu_ras_block_late_init(adev, ras_block); 351 if (r) 352 return r; 353 354 if (amdgpu_ras_is_supported(adev, ras_block->block)) { 355 r = amdgpu_irq_get(adev, &adev->gmc.ecc_irq, 0); 356 if (r) 357 goto late_fini; 358 } 359 360 /* ras init of specific umc version */ 361 if (adev->umc.ras && 362 adev->umc.ras->err_cnt_init) 363 adev->umc.ras->err_cnt_init(adev); 364 365 return 0; 366 367 late_fini: 368 amdgpu_ras_block_late_fini(adev, ras_block); 369 return r; 370 } 371 372 int amdgpu_umc_process_ecc_irq(struct amdgpu_device *adev, 373 struct amdgpu_irq_src *source, 374 struct amdgpu_iv_entry *entry) 375 { 376 struct ras_common_if *ras_if = adev->umc.ras_if; 377 struct ras_dispatch_if ih_data = { 378 .entry = entry, 379 }; 380 381 if (!ras_if) 382 return 0; 383 384 ih_data.head = *ras_if; 385 386 amdgpu_ras_interrupt_dispatch(adev, &ih_data); 387 return 0; 388 } 389 390 void amdgpu_umc_fill_error_record(struct ras_err_data *err_data, 391 uint64_t err_addr, 392 uint64_t retired_page, 393 uint32_t channel_index, 394 uint32_t umc_inst) 395 { 396 struct eeprom_table_record *err_rec = 397 &err_data->err_addr[err_data->err_addr_cnt]; 398 399 err_rec->address = err_addr; 400 /* page frame address is saved */ 401 err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT; 402 err_rec->ts = (uint64_t)ktime_get_real_seconds(); 403 err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE; 404 err_rec->cu = 0; 405 err_rec->mem_channel = channel_index; 406 err_rec->mcumc_id = umc_inst; 407 408 err_data->err_addr_cnt++; 409 } 410 411 int amdgpu_umc_loop_channels(struct amdgpu_device *adev, 412 umc_func func, void *data) 413 { 414 uint32_t node_inst = 0; 415 uint32_t umc_inst = 0; 416 uint32_t ch_inst = 0; 417 int ret = 0; 418 419 if (adev->umc.node_inst_num) { 420 LOOP_UMC_EACH_NODE_INST_AND_CH(node_inst, umc_inst, ch_inst) { 421 ret = func(adev, node_inst, umc_inst, ch_inst, data); 422 if (ret) { 423 dev_err(adev->dev, "Node %d umc %d ch %d func returns %d\n", 424 node_inst, umc_inst, ch_inst, ret); 425 return ret; 426 } 427 } 428 } else { 429 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 430 ret = func(adev, 0, umc_inst, ch_inst, data); 431 if (ret) { 432 dev_err(adev->dev, "Umc %d ch %d func returns %d\n", 433 umc_inst, ch_inst, ret); 434 return ret; 435 } 436 } 437 } 438 439 return 0; 440 } 441