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_8_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_clear_error_count_per_channel(struct amdgpu_device *adev, 51 uint32_t umc_reg_offset) 52 { 53 uint32_t ecc_err_cnt_addr; 54 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 55 56 ecc_err_cnt_sel_addr = 57 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 58 ecc_err_cnt_addr = 59 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 60 61 /* select the lower chip */ 62 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + 63 umc_reg_offset) * 4); 64 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, 65 UMCCH0_0_GeccErrCntSel, 66 GeccErrCntCsSel, 0); 67 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, 68 ecc_err_cnt_sel); 69 70 /* clear lower chip error count */ 71 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, 72 UMC_V8_7_CE_CNT_INIT); 73 74 /* select the higher chip */ 75 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + 76 umc_reg_offset) * 4); 77 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, 78 UMCCH0_0_GeccErrCntSel, 79 GeccErrCntCsSel, 1); 80 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, 81 ecc_err_cnt_sel); 82 83 /* clear higher chip error count */ 84 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, 85 UMC_V8_7_CE_CNT_INIT); 86 } 87 88 static void umc_v8_7_clear_error_count(struct amdgpu_device *adev) 89 { 90 uint32_t umc_inst = 0; 91 uint32_t ch_inst = 0; 92 uint32_t umc_reg_offset = 0; 93 94 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 95 umc_reg_offset = get_umc_8_reg_offset(adev, 96 umc_inst, 97 ch_inst); 98 99 umc_v8_7_clear_error_count_per_channel(adev, 100 umc_reg_offset); 101 } 102 } 103 104 static void umc_v8_7_query_correctable_error_count(struct amdgpu_device *adev, 105 uint32_t umc_reg_offset, 106 unsigned long *error_count) 107 { 108 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 109 uint32_t ecc_err_cnt, ecc_err_cnt_addr; 110 uint64_t mc_umc_status; 111 uint32_t mc_umc_status_addr; 112 113 /* UMC 8_7_2 registers */ 114 ecc_err_cnt_sel_addr = 115 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 116 ecc_err_cnt_addr = 117 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 118 mc_umc_status_addr = 119 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 120 121 /* select the lower chip and check the error count */ 122 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4); 123 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 124 GeccErrCntCsSel, 0); 125 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 126 127 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); 128 *error_count += 129 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) - 130 UMC_V8_7_CE_CNT_INIT); 131 132 /* select the higher chip and check the err counter */ 133 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 134 GeccErrCntCsSel, 1); 135 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 136 137 ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); 138 *error_count += 139 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) - 140 UMC_V8_7_CE_CNT_INIT); 141 142 /* check for SRAM correctable error 143 MCUMC_STATUS is a 64 bit register */ 144 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 145 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 && 146 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 147 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1) 148 *error_count += 1; 149 } 150 151 static void umc_v8_7_querry_uncorrectable_error_count(struct amdgpu_device *adev, 152 uint32_t umc_reg_offset, 153 unsigned long *error_count) 154 { 155 uint64_t mc_umc_status; 156 uint32_t mc_umc_status_addr; 157 158 mc_umc_status_addr = SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 159 160 /* check the MCUMC_STATUS */ 161 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 162 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) && 163 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 || 164 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 165 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 || 166 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 || 167 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1)) 168 *error_count += 1; 169 } 170 171 static void umc_v8_7_query_ras_error_count(struct amdgpu_device *adev, 172 void *ras_error_status) 173 { 174 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 175 176 uint32_t umc_inst = 0; 177 uint32_t ch_inst = 0; 178 uint32_t umc_reg_offset = 0; 179 180 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 181 umc_reg_offset = get_umc_8_reg_offset(adev, 182 umc_inst, 183 ch_inst); 184 185 umc_v8_7_query_correctable_error_count(adev, 186 umc_reg_offset, 187 &(err_data->ce_count)); 188 umc_v8_7_querry_uncorrectable_error_count(adev, 189 umc_reg_offset, 190 &(err_data->ue_count)); 191 } 192 193 umc_v8_7_clear_error_count(adev); 194 } 195 196 static void umc_v8_7_query_error_address(struct amdgpu_device *adev, 197 struct ras_err_data *err_data, 198 uint32_t umc_reg_offset, 199 uint32_t ch_inst, 200 uint32_t umc_inst) 201 { 202 uint32_t lsb, mc_umc_status_addr; 203 uint64_t mc_umc_status, err_addr, retired_page, mc_umc_addrt0; 204 struct eeprom_table_record *err_rec; 205 uint32_t channel_index = adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst]; 206 207 mc_umc_status_addr = 208 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 209 mc_umc_addrt0 = 210 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_ADDRT0); 211 212 mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4); 213 214 if (mc_umc_status == 0) 215 return; 216 217 if (!err_data->err_addr) { 218 /* clear umc status */ 219 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL); 220 return; 221 } 222 223 err_rec = &err_data->err_addr[err_data->err_addr_cnt]; 224 225 /* calculate error address if ue/ce error is detected */ 226 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 227 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 228 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) { 229 230 err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4); 231 /* the lowest lsb bits should be ignored */ 232 lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB); 233 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr); 234 err_addr &= ~((0x1ULL << lsb) - 1); 235 236 /* translate umc channel address to soc pa, 3 parts are included */ 237 retired_page = ADDR_OF_8KB_BLOCK(err_addr) | 238 ADDR_OF_256B_BLOCK(channel_index) | 239 OFFSET_IN_256B_BLOCK(err_addr); 240 241 /* we only save ue error information currently, ce is skipped */ 242 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) 243 == 1) { 244 err_rec->address = err_addr; 245 /* page frame address is saved */ 246 err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT; 247 err_rec->ts = (uint64_t)ktime_get_real_seconds(); 248 err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE; 249 err_rec->cu = 0; 250 err_rec->mem_channel = channel_index; 251 err_rec->mcumc_id = umc_inst; 252 253 err_data->err_addr_cnt++; 254 } 255 } 256 257 /* clear umc status */ 258 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL); 259 } 260 261 static void umc_v8_7_query_ras_error_address(struct amdgpu_device *adev, 262 void *ras_error_status) 263 { 264 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 265 266 uint32_t umc_inst = 0; 267 uint32_t ch_inst = 0; 268 uint32_t umc_reg_offset = 0; 269 270 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 271 umc_reg_offset = get_umc_8_reg_offset(adev, 272 umc_inst, 273 ch_inst); 274 275 umc_v8_7_query_error_address(adev, 276 err_data, 277 umc_reg_offset, 278 ch_inst, 279 umc_inst); 280 } 281 } 282 283 static void umc_v8_7_err_cnt_init_per_channel(struct amdgpu_device *adev, 284 uint32_t umc_reg_offset) 285 { 286 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 287 uint32_t ecc_err_cnt_addr; 288 289 ecc_err_cnt_sel_addr = 290 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel); 291 ecc_err_cnt_addr = 292 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt); 293 294 /* select the lower chip and check the error count */ 295 ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4); 296 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 297 GeccErrCntCsSel, 0); 298 /* set ce error interrupt type to APIC based interrupt */ 299 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 300 GeccErrInt, 0x1); 301 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 302 /* set error count to initial value */ 303 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT); 304 305 /* select the higher chip and check the err counter */ 306 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel, 307 GeccErrCntCsSel, 1); 308 WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); 309 WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT); 310 } 311 312 static void umc_v8_7_err_cnt_init(struct amdgpu_device *adev) 313 { 314 uint32_t umc_inst = 0; 315 uint32_t ch_inst = 0; 316 uint32_t umc_reg_offset = 0; 317 318 LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { 319 umc_reg_offset = get_umc_8_reg_offset(adev, 320 umc_inst, 321 ch_inst); 322 323 umc_v8_7_err_cnt_init_per_channel(adev, umc_reg_offset); 324 } 325 } 326 327 const struct amdgpu_umc_ras_funcs umc_v8_7_ras_funcs = { 328 .err_cnt_init = umc_v8_7_err_cnt_init, 329 .ras_late_init = amdgpu_umc_ras_late_init, 330 .ras_fini = amdgpu_umc_ras_fini, 331 .query_ras_error_count = umc_v8_7_query_ras_error_count, 332 .query_ras_error_address = umc_v8_7_query_ras_error_address, 333 }; 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