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 #include "umc_v6_1.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_6_1_1_offset.h" 30 #include "umc/umc_6_1_1_sh_mask.h" 31 32 static void umc_v6_1_enable_umc_index_mode(struct amdgpu_device *adev, 33 uint32_t umc_instance) 34 { 35 uint32_t rsmu_umc_index; 36 37 rsmu_umc_index = RREG32_SOC15(RSMU, 0, 38 mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU); 39 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, 40 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, 41 RSMU_UMC_INDEX_MODE_EN, 1); 42 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, 43 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, 44 RSMU_UMC_INDEX_INSTANCE, umc_instance); 45 rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, 46 RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, 47 RSMU_UMC_INDEX_WREN, 1 << umc_instance); 48 WREG32_SOC15(RSMU, 0, mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, 49 rsmu_umc_index); 50 } 51 52 static void umc_v6_1_disable_umc_index_mode(struct amdgpu_device *adev) 53 { 54 WREG32_FIELD15(RSMU, 0, RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, 55 RSMU_UMC_INDEX_MODE_EN, 0); 56 } 57 58 static void umc_v6_1_query_correctable_error_count(struct amdgpu_device *adev, 59 uint32_t umc_reg_offset, 60 unsigned long *error_count) 61 { 62 uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; 63 uint32_t ecc_err_cnt, ecc_err_cnt_addr; 64 uint64_t mc_umc_status; 65 uint32_t mc_umc_status_addr; 66 67 ecc_err_cnt_sel_addr = 68 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel); 69 ecc_err_cnt_addr = 70 SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt); 71 mc_umc_status_addr = 72 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 73 74 /* select the lower chip and check the error count */ 75 ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset); 76 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, 77 EccErrCntCsSel, 0); 78 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); 79 ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset); 80 *error_count += 81 REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt); 82 /* clear the lower chip err count */ 83 WREG32(ecc_err_cnt_addr + umc_reg_offset, 0); 84 85 /* select the higher chip and check the err counter */ 86 ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, 87 EccErrCntCsSel, 1); 88 WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); 89 ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset); 90 *error_count += 91 REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt); 92 /* clear the higher chip err count */ 93 WREG32(ecc_err_cnt_addr + umc_reg_offset, 0); 94 95 /* check for SRAM correctable error 96 MCUMC_STATUS is a 64 bit register */ 97 mc_umc_status = RREG64(mc_umc_status_addr + umc_reg_offset); 98 if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 && 99 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1 && 100 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, CECC) == 1) 101 *error_count += 1; 102 } 103 104 static void umc_v6_1_querry_uncorrectable_error_count(struct amdgpu_device *adev, 105 uint32_t umc_reg_offset, 106 unsigned long *error_count) 107 { 108 uint64_t mc_umc_status; 109 uint32_t mc_umc_status_addr; 110 111 mc_umc_status_addr = 112 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 113 114 /* check the MCUMC_STATUS */ 115 mc_umc_status = RREG64(mc_umc_status_addr + umc_reg_offset); 116 if ((REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Val) == 1) && 117 (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1 || 118 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UECC) == 1 || 119 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, PCC) == 1 || 120 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, UC) == 1 || 121 REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, TCC) == 1)) 122 *error_count += 1; 123 } 124 125 static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev, 126 void *ras_error_status) 127 { 128 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 129 uint32_t umc_inst, channel_inst, umc_reg_offset, mc_umc_status_addr; 130 131 mc_umc_status_addr = 132 SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); 133 134 for (umc_inst = 0; umc_inst < UMC_V6_1_UMC_INSTANCE_NUM; umc_inst++) { 135 /* enable the index mode to query eror count per channel */ 136 umc_v6_1_enable_umc_index_mode(adev, umc_inst); 137 for (channel_inst = 0; channel_inst < UMC_V6_1_CHANNEL_INSTANCE_NUM; channel_inst++) { 138 /* calc the register offset according to channel instance */ 139 umc_reg_offset = UMC_V6_1_PER_CHANNEL_OFFSET * channel_inst; 140 umc_v6_1_query_correctable_error_count(adev, umc_reg_offset, 141 &(err_data->ce_count)); 142 umc_v6_1_querry_uncorrectable_error_count(adev, umc_reg_offset, 143 &(err_data->ue_count)); 144 /* clear umc status */ 145 WREG64(mc_umc_status_addr + umc_reg_offset, 0x0ULL); 146 } 147 } 148 umc_v6_1_disable_umc_index_mode(adev); 149 } 150 151 const struct amdgpu_umc_funcs umc_v6_1_funcs = { 152 .query_ras_error_count = umc_v6_1_query_ras_error_count, 153 }; 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