drivers/gpu/drm/amd/amdgpu/umc_v8_7.c

   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.h"
  26
  27 #include "rsmu/rsmu_0_0_2_offset.h"
  28 #include "rsmu/rsmu_0_0_2_sh_mask.h"
  29 #include "umc/umc_8_7_0_offset.h"
  30 #include "umc/umc_8_7_0_sh_mask.h"
  31
  32 #define UMC_8_INST_DIST                 0x40000
  33
  34 const uint32_t
  35         umc_v8_7_channel_idx_tbl[UMC_V8_7_UMC_INSTANCE_NUM][UMC_V8_7_CHANNEL_INSTANCE_NUM] = {
  36                 {2, 11},  {4, 13},
  37                 {1, 8},   {7, 14},
  38                 {10, 3},  {12, 5},
  39                 {9, 0},   {15, 6}
  40 };
  41
  42 static inline uint32_t get_umc_8_reg_offset(struct amdgpu_device *adev,
  43                                             uint32_t umc_inst,
  44                                             uint32_t ch_inst)
  45 {
  46         return adev->umc.channel_offs*ch_inst + UMC_8_INST_DIST*umc_inst;
  47 }
  48
  49 static void umc_v8_7_clear_error_count_per_channel(struct amdgpu_device *adev,
  50                                         uint32_t umc_reg_offset)
  51 {
  52         uint32_t ecc_err_cnt_addr;
  53         uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
  54
  55         ecc_err_cnt_sel_addr =
  56                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel);
  57         ecc_err_cnt_addr =
  58                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt);
  59
  60         /* select the lower chip */
  61         ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
  62                                         umc_reg_offset) * 4);
  63         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
  64                                         UMCCH0_0_GeccErrCntSel,
  65                                         GeccErrCntCsSel, 0);
  66         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
  67                         ecc_err_cnt_sel);
  68
  69         /* clear lower chip error count */
  70         WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
  71                         UMC_V8_7_CE_CNT_INIT);
  72
  73         /* select the higher chip */
  74         ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
  75                                         umc_reg_offset) * 4);
  76         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
  77                                         UMCCH0_0_GeccErrCntSel,
  78                                         GeccErrCntCsSel, 1);
  79         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
  80                         ecc_err_cnt_sel);
  81
  82         /* clear higher chip error count */
  83         WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
  84                         UMC_V8_7_CE_CNT_INIT);
  85 }
  86
  87 static void umc_v8_7_clear_error_count(struct amdgpu_device *adev)
  88 {
  89         uint32_t umc_inst        = 0;
  90         uint32_t ch_inst         = 0;
  91         uint32_t umc_reg_offset  = 0;
  92
  93         LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
  94                 umc_reg_offset = get_umc_8_reg_offset(adev,
  95                                                 umc_inst,
  96                                                 ch_inst);
  97
  98                 umc_v8_7_clear_error_count_per_channel(adev,
  99                                                 umc_reg_offset);
 100         }
 101 }
 102
 103 static void umc_v8_7_query_correctable_error_count(struct amdgpu_device *adev,
 104                                                    uint32_t umc_reg_offset,
 105                                                    unsigned long *error_count)
 106 {
 107         uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
 108         uint32_t ecc_err_cnt, ecc_err_cnt_addr;
 109         uint64_t mc_umc_status;
 110         uint32_t mc_umc_status_addr;
 111
 112         /* UMC 8_7_2 registers */
 113         ecc_err_cnt_sel_addr =
 114                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel);
 115         ecc_err_cnt_addr =
 116                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt);
 117         mc_umc_status_addr =
 118                 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
 119
 120         /* select the lower chip and check the error count */
 121         ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4);
 122         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel,
 123                                         GeccErrCntCsSel, 0);
 124         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
 125
 126         ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
 127         *error_count +=
 128                 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) -
 129                  UMC_V8_7_CE_CNT_INIT);
 130
 131         /* select the higher chip and check the err counter */
 132         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel,
 133                                         GeccErrCntCsSel, 1);
 134         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
 135
 136         ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
 137         *error_count +=
 138                 (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_GeccErrCnt, GeccErrCnt) -
 139                  UMC_V8_7_CE_CNT_INIT);
 140
 141         /* check for SRAM correctable error
 142           MCUMC_STATUS is a 64 bit register */
 143         mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
 144         if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 &&
 145             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
 146             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)
 147                 *error_count += 1;
 148 }
 149
 150 static void umc_v8_7_querry_uncorrectable_error_count(struct amdgpu_device *adev,
 151                                                       uint32_t umc_reg_offset,
 152                                                       unsigned long *error_count)
 153 {
 154         uint64_t mc_umc_status;
 155         uint32_t mc_umc_status_addr;
 156
 157         mc_umc_status_addr = SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
 158
 159         /* check the MCUMC_STATUS */
 160         mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
 161         if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) &&
 162             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 ||
 163             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
 164             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 ||
 165             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 ||
 166             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1))
 167                 *error_count += 1;
 168 }
 169
 170 static void umc_v8_7_query_ras_error_count(struct amdgpu_device *adev,
 171                                            void *ras_error_status)
 172 {
 173         struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
 174
 175         uint32_t umc_inst        = 0;
 176         uint32_t ch_inst         = 0;
 177         uint32_t umc_reg_offset  = 0;
 178
 179         LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
 180                 umc_reg_offset = get_umc_8_reg_offset(adev,
 181                                                       umc_inst,
 182                                                       ch_inst);
 183
 184                 umc_v8_7_query_correctable_error_count(adev,
 185                                                        umc_reg_offset,
 186                                                        &(err_data->ce_count));
 187                 umc_v8_7_querry_uncorrectable_error_count(adev,
 188                                                           umc_reg_offset,
 189                                                           &(err_data->ue_count));
 190         }
 191
 192         umc_v8_7_clear_error_count(adev);
 193 }
 194
 195 static void umc_v8_7_query_error_address(struct amdgpu_device *adev,
 196                                          struct ras_err_data *err_data,
 197                                          uint32_t umc_reg_offset,
 198                                          uint32_t ch_inst,
 199                                          uint32_t umc_inst)
 200 {
 201         uint32_t lsb, mc_umc_status_addr;
 202         uint64_t mc_umc_status, err_addr, retired_page, mc_umc_addrt0;
 203         struct eeprom_table_record *err_rec;
 204         uint32_t channel_index = adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
 205
 206         mc_umc_status_addr =
 207                 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0);
 208         mc_umc_addrt0 =
 209                 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_ADDRT0);
 210
 211         mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
 212
 213         if (mc_umc_status == 0)
 214                 return;
 215
 216         if (!err_data->err_addr) {
 217                 /* clear umc status */
 218                 WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
 219                 return;
 220         }
 221
 222         err_rec = &err_data->err_addr[err_data->err_addr_cnt];
 223
 224         /* calculate error address if ue/ce error is detected */
 225         if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 &&
 226             (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 ||
 227             REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) {
 228
 229                 err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4);
 230                 /* the lowest lsb bits should be ignored */
 231                 lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB);
 232                 err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
 233                 err_addr &= ~((0x1ULL << lsb) - 1);
 234
 235                 /* translate umc channel address to soc pa, 3 parts are included */
 236                 retired_page = ADDR_OF_8KB_BLOCK(err_addr) |
 237                                 ADDR_OF_256B_BLOCK(channel_index) |
 238                                 OFFSET_IN_256B_BLOCK(err_addr);
 239
 240                 /* we only save ue error information currently, ce is skipped */
 241                 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC)
 242                                 == 1) {
 243                         err_rec->address = err_addr;
 244                         /* page frame address is saved */
 245                         err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT;
 246                         err_rec->ts = (uint64_t)ktime_get_real_seconds();
 247                         err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE;
 248                         err_rec->cu = 0;
 249                         err_rec->mem_channel = channel_index;
 250                         err_rec->mcumc_id = umc_inst;
 251
 252                         err_data->err_addr_cnt++;
 253                 }
 254         }
 255
 256         /* clear umc status */
 257         WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
 258 }
 259
 260 static void umc_v8_7_query_ras_error_address(struct amdgpu_device *adev,
 261                                              void *ras_error_status)
 262 {
 263         struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
 264
 265         uint32_t umc_inst        = 0;
 266         uint32_t ch_inst         = 0;
 267         uint32_t umc_reg_offset  = 0;
 268
 269         LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
 270                 umc_reg_offset = get_umc_8_reg_offset(adev,
 271                                                       umc_inst,
 272                                                       ch_inst);
 273
 274                 umc_v8_7_query_error_address(adev,
 275                                              err_data,
 276                                              umc_reg_offset,
 277                                              ch_inst,
 278                                              umc_inst);
 279         }
 280 }
 281
 282 static void umc_v8_7_err_cnt_init_per_channel(struct amdgpu_device *adev,
 283                                               uint32_t umc_reg_offset)
 284 {
 285         uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
 286         uint32_t ecc_err_cnt_addr;
 287
 288         ecc_err_cnt_sel_addr =
 289                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCntSel);
 290         ecc_err_cnt_addr =
 291                 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_GeccErrCnt);
 292
 293         /* select the lower chip and check the error count */
 294         ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4);
 295         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel,
 296                                         GeccErrCntCsSel, 0);
 297         /* set ce error interrupt type to APIC based interrupt */
 298         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel,
 299                                         GeccErrInt, 0x1);
 300         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
 301         /* set error count to initial value */
 302         WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT);
 303
 304         /* select the higher chip and check the err counter */
 305         ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_GeccErrCntSel,
 306                                         GeccErrCntCsSel, 1);
 307         WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
 308         WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_7_CE_CNT_INIT);
 309 }
 310
 311 static void umc_v8_7_err_cnt_init(struct amdgpu_device *adev)
 312 {
 313         uint32_t umc_inst        = 0;
 314         uint32_t ch_inst         = 0;
 315         uint32_t umc_reg_offset  = 0;
 316
 317         LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
 318                 umc_reg_offset = get_umc_8_reg_offset(adev,
 319                                                       umc_inst,
 320                                                       ch_inst);
 321
 322                 umc_v8_7_err_cnt_init_per_channel(adev, umc_reg_offset);
 323         }
 324 }
 325
 326 const struct amdgpu_umc_funcs umc_v8_7_funcs = {
 327         .err_cnt_init = umc_v8_7_err_cnt_init,
 328         .ras_late_init = amdgpu_umc_ras_late_init,
 329         .query_ras_error_count = umc_v8_7_query_ras_error_count,
 330         .query_ras_error_address = umc_v8_7_query_ras_error_address,
 331 };