1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2021 Intel Corporation 4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH 5 * Copyright (C) 2015-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/devcoredump.h> 8 #include "iwl-drv.h" 9 #include "runtime.h" 10 #include "dbg.h" 11 #include "debugfs.h" 12 #include "iwl-io.h" 13 #include "iwl-prph.h" 14 #include "iwl-csr.h" 15 #include "pnvm.h" 16 17 /* 18 * Note: This structure is read from the device with IO accesses, 19 * and the reading already does the endian conversion. As it is 20 * read with u32-sized accesses, any members with a different size 21 * need to be ordered correctly though! 22 */ 23 struct iwl_error_event_table { 24 u32 valid; /* (nonzero) valid, (0) log is empty */ 25 u32 error_id; /* type of error */ 26 u32 trm_hw_status0; /* TRM HW status */ 27 u32 trm_hw_status1; /* TRM HW status */ 28 u32 blink2; /* branch link */ 29 u32 ilink1; /* interrupt link */ 30 u32 ilink2; /* interrupt link */ 31 u32 data1; /* error-specific data */ 32 u32 data2; /* error-specific data */ 33 u32 data3; /* error-specific data */ 34 u32 bcon_time; /* beacon timer */ 35 u32 tsf_low; /* network timestamp function timer */ 36 u32 tsf_hi; /* network timestamp function timer */ 37 u32 gp1; /* GP1 timer register */ 38 u32 gp2; /* GP2 timer register */ 39 u32 fw_rev_type; /* firmware revision type */ 40 u32 major; /* uCode version major */ 41 u32 minor; /* uCode version minor */ 42 u32 hw_ver; /* HW Silicon version */ 43 u32 brd_ver; /* HW board version */ 44 u32 log_pc; /* log program counter */ 45 u32 frame_ptr; /* frame pointer */ 46 u32 stack_ptr; /* stack pointer */ 47 u32 hcmd; /* last host command header */ 48 u32 isr0; /* isr status register LMPM_NIC_ISR0: 49 * rxtx_flag */ 50 u32 isr1; /* isr status register LMPM_NIC_ISR1: 51 * host_flag */ 52 u32 isr2; /* isr status register LMPM_NIC_ISR2: 53 * enc_flag */ 54 u32 isr3; /* isr status register LMPM_NIC_ISR3: 55 * time_flag */ 56 u32 isr4; /* isr status register LMPM_NIC_ISR4: 57 * wico interrupt */ 58 u32 last_cmd_id; /* last HCMD id handled by the firmware */ 59 u32 wait_event; /* wait event() caller address */ 60 u32 l2p_control; /* L2pControlField */ 61 u32 l2p_duration; /* L2pDurationField */ 62 u32 l2p_mhvalid; /* L2pMhValidBits */ 63 u32 l2p_addr_match; /* L2pAddrMatchStat */ 64 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 65 * (LMPM_PMG_SEL) */ 66 u32 u_timestamp; /* indicate when the date and time of the 67 * compilation */ 68 u32 flow_handler; /* FH read/write pointers, RX credit */ 69 } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */; 70 71 /* 72 * UMAC error struct - relevant starting from family 8000 chip. 73 * Note: This structure is read from the device with IO accesses, 74 * and the reading already does the endian conversion. As it is 75 * read with u32-sized accesses, any members with a different size 76 * need to be ordered correctly though! 77 */ 78 struct iwl_umac_error_event_table { 79 u32 valid; /* (nonzero) valid, (0) log is empty */ 80 u32 error_id; /* type of error */ 81 u32 blink1; /* branch link */ 82 u32 blink2; /* branch link */ 83 u32 ilink1; /* interrupt link */ 84 u32 ilink2; /* interrupt link */ 85 u32 data1; /* error-specific data */ 86 u32 data2; /* error-specific data */ 87 u32 data3; /* error-specific data */ 88 u32 umac_major; 89 u32 umac_minor; 90 u32 frame_pointer; /* core register 27*/ 91 u32 stack_pointer; /* core register 28 */ 92 u32 cmd_header; /* latest host cmd sent to UMAC */ 93 u32 nic_isr_pref; /* ISR status register */ 94 } __packed; 95 96 #define ERROR_START_OFFSET (1 * sizeof(u32)) 97 #define ERROR_ELEM_SIZE (7 * sizeof(u32)) 98 99 static void iwl_fwrt_dump_umac_error_log(struct iwl_fw_runtime *fwrt) 100 { 101 struct iwl_trans *trans = fwrt->trans; 102 struct iwl_umac_error_event_table table = {}; 103 u32 base = fwrt->trans->dbg.umac_error_event_table; 104 char pnvm_name[MAX_PNVM_NAME]; 105 106 if (!base && 107 !(fwrt->trans->dbg.error_event_table_tlv_status & 108 IWL_ERROR_EVENT_TABLE_UMAC)) 109 return; 110 111 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 112 113 if (table.valid) 114 fwrt->dump.umac_err_id = table.error_id; 115 116 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 117 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 118 IWL_ERR(trans, "Transport status: 0x%08lX, valid: %d\n", 119 fwrt->trans->status, table.valid); 120 } 121 122 if ((table.error_id & ~FW_SYSASSERT_CPU_MASK) == 123 FW_SYSASSERT_PNVM_MISSING) { 124 iwl_pnvm_get_fs_name(trans, pnvm_name, sizeof(pnvm_name)); 125 IWL_ERR(fwrt, "PNVM data is missing, please install %s\n", 126 pnvm_name); 127 } 128 129 IWL_ERR(fwrt, "0x%08X | %s\n", table.error_id, 130 iwl_fw_lookup_assert_desc(table.error_id)); 131 IWL_ERR(fwrt, "0x%08X | umac branchlink1\n", table.blink1); 132 IWL_ERR(fwrt, "0x%08X | umac branchlink2\n", table.blink2); 133 IWL_ERR(fwrt, "0x%08X | umac interruptlink1\n", table.ilink1); 134 IWL_ERR(fwrt, "0x%08X | umac interruptlink2\n", table.ilink2); 135 IWL_ERR(fwrt, "0x%08X | umac data1\n", table.data1); 136 IWL_ERR(fwrt, "0x%08X | umac data2\n", table.data2); 137 IWL_ERR(fwrt, "0x%08X | umac data3\n", table.data3); 138 IWL_ERR(fwrt, "0x%08X | umac major\n", table.umac_major); 139 IWL_ERR(fwrt, "0x%08X | umac minor\n", table.umac_minor); 140 IWL_ERR(fwrt, "0x%08X | frame pointer\n", table.frame_pointer); 141 IWL_ERR(fwrt, "0x%08X | stack pointer\n", table.stack_pointer); 142 IWL_ERR(fwrt, "0x%08X | last host cmd\n", table.cmd_header); 143 IWL_ERR(fwrt, "0x%08X | isr status reg\n", table.nic_isr_pref); 144 } 145 146 static void iwl_fwrt_dump_lmac_error_log(struct iwl_fw_runtime *fwrt, u8 lmac_num) 147 { 148 struct iwl_trans *trans = fwrt->trans; 149 struct iwl_error_event_table table = {}; 150 u32 val, base = fwrt->trans->dbg.lmac_error_event_table[lmac_num]; 151 152 if (fwrt->cur_fw_img == IWL_UCODE_INIT) { 153 if (!base) 154 base = fwrt->fw->init_errlog_ptr; 155 } else { 156 if (!base) 157 base = fwrt->fw->inst_errlog_ptr; 158 } 159 160 if (base < 0x400000) { 161 IWL_ERR(fwrt, 162 "Not valid error log pointer 0x%08X for %s uCode\n", 163 base, 164 (fwrt->cur_fw_img == IWL_UCODE_INIT) 165 ? "Init" : "RT"); 166 return; 167 } 168 169 /* check if there is a HW error */ 170 val = iwl_trans_read_mem32(trans, base); 171 if (((val & ~0xf) == 0xa5a5a5a0) || ((val & ~0xf) == 0x5a5a5a50)) { 172 int err; 173 174 IWL_ERR(trans, "HW error, resetting before reading\n"); 175 176 /* reset the device */ 177 err = iwl_trans_sw_reset(trans, true); 178 if (err) 179 return; 180 181 err = iwl_finish_nic_init(trans); 182 if (err) 183 return; 184 } 185 186 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 187 188 if (table.valid) 189 fwrt->dump.lmac_err_id[lmac_num] = table.error_id; 190 191 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 192 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 193 IWL_ERR(trans, "Transport status: 0x%08lX, valid: %d\n", 194 fwrt->trans->status, table.valid); 195 } 196 197 /* Do not change this output - scripts rely on it */ 198 199 IWL_ERR(fwrt, "Loaded firmware version: %s\n", fwrt->fw->fw_version); 200 201 IWL_ERR(fwrt, "0x%08X | %-28s\n", table.error_id, 202 iwl_fw_lookup_assert_desc(table.error_id)); 203 IWL_ERR(fwrt, "0x%08X | trm_hw_status0\n", table.trm_hw_status0); 204 IWL_ERR(fwrt, "0x%08X | trm_hw_status1\n", table.trm_hw_status1); 205 IWL_ERR(fwrt, "0x%08X | branchlink2\n", table.blink2); 206 IWL_ERR(fwrt, "0x%08X | interruptlink1\n", table.ilink1); 207 IWL_ERR(fwrt, "0x%08X | interruptlink2\n", table.ilink2); 208 IWL_ERR(fwrt, "0x%08X | data1\n", table.data1); 209 IWL_ERR(fwrt, "0x%08X | data2\n", table.data2); 210 IWL_ERR(fwrt, "0x%08X | data3\n", table.data3); 211 IWL_ERR(fwrt, "0x%08X | beacon time\n", table.bcon_time); 212 IWL_ERR(fwrt, "0x%08X | tsf low\n", table.tsf_low); 213 IWL_ERR(fwrt, "0x%08X | tsf hi\n", table.tsf_hi); 214 IWL_ERR(fwrt, "0x%08X | time gp1\n", table.gp1); 215 IWL_ERR(fwrt, "0x%08X | time gp2\n", table.gp2); 216 IWL_ERR(fwrt, "0x%08X | uCode revision type\n", table.fw_rev_type); 217 IWL_ERR(fwrt, "0x%08X | uCode version major\n", table.major); 218 IWL_ERR(fwrt, "0x%08X | uCode version minor\n", table.minor); 219 IWL_ERR(fwrt, "0x%08X | hw version\n", table.hw_ver); 220 IWL_ERR(fwrt, "0x%08X | board version\n", table.brd_ver); 221 IWL_ERR(fwrt, "0x%08X | hcmd\n", table.hcmd); 222 IWL_ERR(fwrt, "0x%08X | isr0\n", table.isr0); 223 IWL_ERR(fwrt, "0x%08X | isr1\n", table.isr1); 224 IWL_ERR(fwrt, "0x%08X | isr2\n", table.isr2); 225 IWL_ERR(fwrt, "0x%08X | isr3\n", table.isr3); 226 IWL_ERR(fwrt, "0x%08X | isr4\n", table.isr4); 227 IWL_ERR(fwrt, "0x%08X | last cmd Id\n", table.last_cmd_id); 228 IWL_ERR(fwrt, "0x%08X | wait_event\n", table.wait_event); 229 IWL_ERR(fwrt, "0x%08X | l2p_control\n", table.l2p_control); 230 IWL_ERR(fwrt, "0x%08X | l2p_duration\n", table.l2p_duration); 231 IWL_ERR(fwrt, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 232 IWL_ERR(fwrt, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 233 IWL_ERR(fwrt, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 234 IWL_ERR(fwrt, "0x%08X | timestamp\n", table.u_timestamp); 235 IWL_ERR(fwrt, "0x%08X | flow_handler\n", table.flow_handler); 236 } 237 238 /* 239 * TCM error struct. 240 * Note: This structure is read from the device with IO accesses, 241 * and the reading already does the endian conversion. As it is 242 * read with u32-sized accesses, any members with a different size 243 * need to be ordered correctly though! 244 */ 245 struct iwl_tcm_error_event_table { 246 u32 valid; 247 u32 error_id; 248 u32 blink2; 249 u32 ilink1; 250 u32 ilink2; 251 u32 data1, data2, data3; 252 u32 logpc; 253 u32 frame_pointer; 254 u32 stack_pointer; 255 u32 msgid; 256 u32 isr; 257 u32 hw_status[5]; 258 u32 sw_status[1]; 259 u32 reserved[4]; 260 } __packed; /* TCM_LOG_ERROR_TABLE_API_S_VER_1 */ 261 262 static void iwl_fwrt_dump_tcm_error_log(struct iwl_fw_runtime *fwrt, int idx) 263 { 264 struct iwl_trans *trans = fwrt->trans; 265 struct iwl_tcm_error_event_table table = {}; 266 u32 base = fwrt->trans->dbg.tcm_error_event_table[idx]; 267 int i; 268 u32 flag = idx ? IWL_ERROR_EVENT_TABLE_TCM2 : 269 IWL_ERROR_EVENT_TABLE_TCM1; 270 271 if (!base || !(fwrt->trans->dbg.error_event_table_tlv_status & flag)) 272 return; 273 274 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 275 276 IWL_ERR(fwrt, "TCM%d status:\n", idx + 1); 277 IWL_ERR(fwrt, "0x%08X | error ID\n", table.error_id); 278 IWL_ERR(fwrt, "0x%08X | tcm branchlink2\n", table.blink2); 279 IWL_ERR(fwrt, "0x%08X | tcm interruptlink1\n", table.ilink1); 280 IWL_ERR(fwrt, "0x%08X | tcm interruptlink2\n", table.ilink2); 281 IWL_ERR(fwrt, "0x%08X | tcm data1\n", table.data1); 282 IWL_ERR(fwrt, "0x%08X | tcm data2\n", table.data2); 283 IWL_ERR(fwrt, "0x%08X | tcm data3\n", table.data3); 284 IWL_ERR(fwrt, "0x%08X | tcm log PC\n", table.logpc); 285 IWL_ERR(fwrt, "0x%08X | tcm frame pointer\n", table.frame_pointer); 286 IWL_ERR(fwrt, "0x%08X | tcm stack pointer\n", table.stack_pointer); 287 IWL_ERR(fwrt, "0x%08X | tcm msg ID\n", table.msgid); 288 IWL_ERR(fwrt, "0x%08X | tcm ISR status\n", table.isr); 289 for (i = 0; i < ARRAY_SIZE(table.hw_status); i++) 290 IWL_ERR(fwrt, "0x%08X | tcm HW status[%d]\n", 291 table.hw_status[i], i); 292 for (i = 0; i < ARRAY_SIZE(table.sw_status); i++) 293 IWL_ERR(fwrt, "0x%08X | tcm SW status[%d]\n", 294 table.sw_status[i], i); 295 } 296 297 /* 298 * RCM error struct. 299 * Note: This structure is read from the device with IO accesses, 300 * and the reading already does the endian conversion. As it is 301 * read with u32-sized accesses, any members with a different size 302 * need to be ordered correctly though! 303 */ 304 struct iwl_rcm_error_event_table { 305 u32 valid; 306 u32 error_id; 307 u32 blink2; 308 u32 ilink1; 309 u32 ilink2; 310 u32 data1, data2, data3; 311 u32 logpc; 312 u32 frame_pointer; 313 u32 stack_pointer; 314 u32 msgid; 315 u32 isr; 316 u32 frame_hw_status; 317 u32 mbx_lmac_to_rcm_req; 318 u32 mbx_rcm_to_lmac_req; 319 u32 mh_ctl; 320 u32 mh_addr1_lo; 321 u32 mh_info; 322 u32 mh_err; 323 u32 reserved[3]; 324 } __packed; /* RCM_LOG_ERROR_TABLE_API_S_VER_1 */ 325 326 static void iwl_fwrt_dump_rcm_error_log(struct iwl_fw_runtime *fwrt, int idx) 327 { 328 struct iwl_trans *trans = fwrt->trans; 329 struct iwl_rcm_error_event_table table = {}; 330 u32 base = fwrt->trans->dbg.rcm_error_event_table[idx]; 331 u32 flag = idx ? IWL_ERROR_EVENT_TABLE_RCM2 : 332 IWL_ERROR_EVENT_TABLE_RCM1; 333 334 if (!base || !(fwrt->trans->dbg.error_event_table_tlv_status & flag)) 335 return; 336 337 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 338 339 IWL_ERR(fwrt, "RCM%d status:\n", idx + 1); 340 IWL_ERR(fwrt, "0x%08X | error ID\n", table.error_id); 341 IWL_ERR(fwrt, "0x%08X | rcm branchlink2\n", table.blink2); 342 IWL_ERR(fwrt, "0x%08X | rcm interruptlink1\n", table.ilink1); 343 IWL_ERR(fwrt, "0x%08X | rcm interruptlink2\n", table.ilink2); 344 IWL_ERR(fwrt, "0x%08X | rcm data1\n", table.data1); 345 IWL_ERR(fwrt, "0x%08X | rcm data2\n", table.data2); 346 IWL_ERR(fwrt, "0x%08X | rcm data3\n", table.data3); 347 IWL_ERR(fwrt, "0x%08X | rcm log PC\n", table.logpc); 348 IWL_ERR(fwrt, "0x%08X | rcm frame pointer\n", table.frame_pointer); 349 IWL_ERR(fwrt, "0x%08X | rcm stack pointer\n", table.stack_pointer); 350 IWL_ERR(fwrt, "0x%08X | rcm msg ID\n", table.msgid); 351 IWL_ERR(fwrt, "0x%08X | rcm ISR status\n", table.isr); 352 IWL_ERR(fwrt, "0x%08X | frame HW status\n", table.frame_hw_status); 353 IWL_ERR(fwrt, "0x%08X | LMAC-to-RCM request mbox\n", 354 table.mbx_lmac_to_rcm_req); 355 IWL_ERR(fwrt, "0x%08X | RCM-to-LMAC request mbox\n", 356 table.mbx_rcm_to_lmac_req); 357 IWL_ERR(fwrt, "0x%08X | MAC header control\n", table.mh_ctl); 358 IWL_ERR(fwrt, "0x%08X | MAC header addr1 low\n", table.mh_addr1_lo); 359 IWL_ERR(fwrt, "0x%08X | MAC header info\n", table.mh_info); 360 IWL_ERR(fwrt, "0x%08X | MAC header error\n", table.mh_err); 361 } 362 363 static void iwl_fwrt_dump_iml_error_log(struct iwl_fw_runtime *fwrt) 364 { 365 struct iwl_trans *trans = fwrt->trans; 366 u32 error, data1; 367 368 if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 369 error = UMAG_SB_CPU_2_STATUS; 370 data1 = UMAG_SB_CPU_1_STATUS; 371 } else if (fwrt->trans->trans_cfg->device_family >= 372 IWL_DEVICE_FAMILY_8000) { 373 error = SB_CPU_2_STATUS; 374 data1 = SB_CPU_1_STATUS; 375 } else { 376 return; 377 } 378 379 error = iwl_read_umac_prph(trans, UMAG_SB_CPU_2_STATUS); 380 381 IWL_ERR(trans, "IML/ROM dump:\n"); 382 383 if (error & 0xFFFF0000) 384 IWL_ERR(trans, "0x%04X | IML/ROM SYSASSERT\n", error >> 16); 385 386 IWL_ERR(fwrt, "0x%08X | IML/ROM error/state\n", error); 387 IWL_ERR(fwrt, "0x%08X | IML/ROM data1\n", 388 iwl_read_umac_prph(trans, data1)); 389 390 if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) 391 IWL_ERR(fwrt, "0x%08X | IML/ROM WFPM_AUTH_KEY_0\n", 392 iwl_read_umac_prph(trans, SB_MODIFY_CFG_FLAG)); 393 } 394 395 #define FSEQ_REG(x) { .addr = (x), .str = #x, } 396 397 static void iwl_fwrt_dump_fseq_regs(struct iwl_fw_runtime *fwrt) 398 { 399 struct iwl_trans *trans = fwrt->trans; 400 int i; 401 struct { 402 u32 addr; 403 const char *str; 404 } fseq_regs[] = { 405 FSEQ_REG(FSEQ_ERROR_CODE), 406 FSEQ_REG(FSEQ_TOP_INIT_VERSION), 407 FSEQ_REG(FSEQ_CNVIO_INIT_VERSION), 408 FSEQ_REG(FSEQ_OTP_VERSION), 409 FSEQ_REG(FSEQ_TOP_CONTENT_VERSION), 410 FSEQ_REG(FSEQ_ALIVE_TOKEN), 411 FSEQ_REG(FSEQ_CNVI_ID), 412 FSEQ_REG(FSEQ_CNVR_ID), 413 FSEQ_REG(CNVI_AUX_MISC_CHIP), 414 FSEQ_REG(CNVR_AUX_MISC_CHIP), 415 FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM), 416 FSEQ_REG(CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR), 417 }; 418 419 if (!iwl_trans_grab_nic_access(trans)) 420 return; 421 422 IWL_ERR(fwrt, "Fseq Registers:\n"); 423 424 for (i = 0; i < ARRAY_SIZE(fseq_regs); i++) 425 IWL_ERR(fwrt, "0x%08X | %s\n", 426 iwl_read_prph_no_grab(trans, fseq_regs[i].addr), 427 fseq_regs[i].str); 428 429 iwl_trans_release_nic_access(trans); 430 } 431 432 void iwl_fwrt_dump_error_logs(struct iwl_fw_runtime *fwrt) 433 { 434 if (!test_bit(STATUS_DEVICE_ENABLED, &fwrt->trans->status)) { 435 IWL_ERR(fwrt, 436 "DEVICE_ENABLED bit is not set. Aborting dump.\n"); 437 return; 438 } 439 440 iwl_fwrt_dump_lmac_error_log(fwrt, 0); 441 if (fwrt->trans->dbg.lmac_error_event_table[1]) 442 iwl_fwrt_dump_lmac_error_log(fwrt, 1); 443 iwl_fwrt_dump_umac_error_log(fwrt); 444 iwl_fwrt_dump_tcm_error_log(fwrt, 0); 445 iwl_fwrt_dump_rcm_error_log(fwrt, 0); 446 iwl_fwrt_dump_tcm_error_log(fwrt, 1); 447 iwl_fwrt_dump_rcm_error_log(fwrt, 1); 448 iwl_fwrt_dump_iml_error_log(fwrt); 449 iwl_fwrt_dump_fseq_regs(fwrt); 450 451 if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) { 452 u32 scratch = iwl_read32(fwrt->trans, CSR_FUNC_SCRATCH); 453 454 IWL_ERR(fwrt, "Function Scratch status:\n"); 455 IWL_ERR(fwrt, "0x%08X | Func Scratch\n", scratch); 456 } 457 } 458 IWL_EXPORT_SYMBOL(iwl_fwrt_dump_error_logs); 459