diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/umc_v6_7.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c index f7ec3fe134e5..6dd1e19e8d43 100644 --- a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c +++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c @@ -50,6 +50,165 @@ static inline uint32_t get_umc_v6_7_reg_offset(struct amdgpu_device *adev, return adev->umc.channel_offs * ch_inst + UMC_V6_7_INST_DIST * umc_inst; } +static inline uint32_t get_umc_v6_7_channel_index(struct amdgpu_device *adev, + uint32_t umc_inst, + uint32_t ch_inst) +{ + return adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst]; +} + +static void umc_v6_7_ecc_info_query_correctable_error_count(struct amdgpu_device *adev, + uint32_t channel_index, + unsigned long *error_count) +{ + uint32_t ecc_err_cnt; + uint64_t mc_umc_status; + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); + + /* + * select the lower chip and check the error count + * skip add error count, calc error counter only from mca_umc_status + */ + ecc_err_cnt = ras->umc_ecc.ecc[channel_index].ce_count_lo_chip; + + /* + * select the higher chip and check the err counter + * skip add error count, calc error counter only from mca_umc_status + */ + ecc_err_cnt = ras->umc_ecc.ecc[channel_index].ce_count_hi_chip; + + /* check for SRAM correctable error + MCUMC_STATUS is a 64 bit register */ + mc_umc_status = ras->umc_ecc.ecc[channel_index].mca_umc_status; + if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1) + *error_count += 1; +} + +static void umc_v6_7_ecc_info_querry_uncorrectable_error_count(struct amdgpu_device *adev, + uint32_t channel_index, + unsigned long *error_count) +{ + uint64_t mc_umc_status; + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); + + /* check the MCUMC_STATUS */ + mc_umc_status = ras->umc_ecc.ecc[channel_index].mca_umc_status; + if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) && + (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 || + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 || + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 || + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1)) + *error_count += 1; +} + +static void umc_v6_7_ecc_info_query_ras_error_count(struct amdgpu_device *adev, + void *ras_error_status) +{ + struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; + + uint32_t umc_inst = 0; + uint32_t ch_inst = 0; + uint32_t umc_reg_offset = 0; + uint32_t channel_index = 0; + + /*TODO: driver needs to toggle DF Cstate to ensure + * safe access of UMC registers. Will add the protection */ + LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { + umc_reg_offset = get_umc_v6_7_reg_offset(adev, + umc_inst, + ch_inst); + channel_index = get_umc_v6_7_channel_index(adev, + umc_inst, + ch_inst); + umc_v6_7_ecc_info_query_correctable_error_count(adev, + channel_index, + &(err_data->ce_count)); + umc_v6_7_ecc_info_querry_uncorrectable_error_count(adev, + channel_index, + &(err_data->ue_count)); + } +} + +static void umc_v6_7_ecc_info_query_error_address(struct amdgpu_device *adev, + struct ras_err_data *err_data, + uint32_t umc_reg_offset, + uint32_t ch_inst, + uint32_t umc_inst) +{ + uint64_t mc_umc_status, err_addr, retired_page; + struct eeprom_table_record *err_rec; + uint32_t channel_index; + struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); + + channel_index = + adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst]; + + mc_umc_status = ras->umc_ecc.ecc[channel_index].mca_umc_status; + + if (mc_umc_status == 0) + return; + + if (!err_data->err_addr) + return; + + err_rec = &err_data->err_addr[err_data->err_addr_cnt]; + + /* calculate error address if ue/ce error is detected */ + if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && + (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || + REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1)) { + + err_addr = ras->umc_ecc.ecc[channel_index].mca_umc_addr; + err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr); + + /* translate umc channel address to soc pa, 3 parts are included */ + retired_page = ADDR_OF_8KB_BLOCK(err_addr) | + ADDR_OF_256B_BLOCK(channel_index) | + OFFSET_IN_256B_BLOCK(err_addr); + + /* we only save ue error information currently, ce is skipped */ + if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) + == 1) { + err_rec->address = err_addr; + /* page frame address is saved */ + err_rec->retired_page = retired_page >> AMDGPU_GPU_PAGE_SHIFT; + err_rec->ts = (uint64_t)ktime_get_real_seconds(); + err_rec->err_type = AMDGPU_RAS_EEPROM_ERR_NON_RECOVERABLE; + err_rec->cu = 0; + err_rec->mem_channel = channel_index; + err_rec->mcumc_id = umc_inst; + + err_data->err_addr_cnt++; + } + } +} + +static void umc_v6_7_ecc_info_query_ras_error_address(struct amdgpu_device *adev, + void *ras_error_status) +{ + struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; + + uint32_t umc_inst = 0; + uint32_t ch_inst = 0; + uint32_t umc_reg_offset = 0; + + /*TODO: driver needs to toggle DF Cstate to ensure + * safe access of UMC resgisters. Will add the protection + * when firmware interface is ready */ + LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) { + umc_reg_offset = get_umc_v6_7_reg_offset(adev, + umc_inst, + ch_inst); + umc_v6_7_ecc_info_query_error_address(adev, + err_data, + umc_reg_offset, + ch_inst, + umc_inst); + } +} + static void umc_v6_7_query_correctable_error_count(struct amdgpu_device *adev, uint32_t umc_reg_offset, unsigned long *error_count) @@ -327,4 +486,6 @@ const struct amdgpu_umc_ras_funcs umc_v6_7_ras_funcs = { .query_ras_error_count = umc_v6_7_query_ras_error_count, .query_ras_error_address = umc_v6_7_query_ras_error_address, .query_ras_poison_mode = umc_v6_7_query_ras_poison_mode, + .ecc_info_query_ras_error_count = umc_v6_7_ecc_info_query_ras_error_count, + .ecc_info_query_ras_error_address = umc_v6_7_ecc_info_query_ras_error_address, }; |