| /* |
| * Copyright 2019 Advanced Micro Devices, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| */ |
| #include "umc_v6_1.h" |
| #include "amdgpu_ras.h" |
| #include "amdgpu.h" |
| |
| #include "rsmu/rsmu_0_0_2_offset.h" |
| #include "rsmu/rsmu_0_0_2_sh_mask.h" |
| #include "umc/umc_6_1_1_offset.h" |
| #include "umc/umc_6_1_1_sh_mask.h" |
| |
| #define smnMCA_UMC0_MCUMC_ADDRT0 0x50f10 |
| |
| /* |
| * (addr / 256) * 8192, the higher 26 bits in ErrorAddr |
| * is the index of 8KB block |
| */ |
| #define ADDR_OF_8KB_BLOCK(addr) (((addr) & ~0xffULL) << 5) |
| /* channel index is the index of 256B block */ |
| #define ADDR_OF_256B_BLOCK(channel_index) ((channel_index) << 8) |
| /* offset in 256B block */ |
| #define OFFSET_IN_256B_BLOCK(addr) ((addr) & 0xffULL) |
| |
| const uint32_t |
| umc_v6_1_channel_idx_tbl[UMC_V6_1_UMC_INSTANCE_NUM][UMC_V6_1_CHANNEL_INSTANCE_NUM] = { |
| {2, 18, 11, 27}, {4, 20, 13, 29}, |
| {1, 17, 8, 24}, {7, 23, 14, 30}, |
| {10, 26, 3, 19}, {12, 28, 5, 21}, |
| {9, 25, 0, 16}, {15, 31, 6, 22} |
| }; |
| |
| static void umc_v6_1_enable_umc_index_mode(struct amdgpu_device *adev, |
| uint32_t umc_instance) |
| { |
| uint32_t rsmu_umc_index; |
| |
| rsmu_umc_index = RREG32_SOC15(RSMU, 0, |
| mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU); |
| rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, |
| RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, |
| RSMU_UMC_INDEX_MODE_EN, 1); |
| rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, |
| RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, |
| RSMU_UMC_INDEX_INSTANCE, umc_instance); |
| rsmu_umc_index = REG_SET_FIELD(rsmu_umc_index, |
| RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, |
| RSMU_UMC_INDEX_WREN, 1 << umc_instance); |
| WREG32_SOC15(RSMU, 0, mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, |
| rsmu_umc_index); |
| } |
| |
| static void umc_v6_1_disable_umc_index_mode(struct amdgpu_device *adev) |
| { |
| WREG32_FIELD15(RSMU, 0, RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, |
| RSMU_UMC_INDEX_MODE_EN, 0); |
| } |
| |
| static void umc_v6_1_query_correctable_error_count(struct amdgpu_device *adev, |
| uint32_t umc_reg_offset, |
| unsigned long *error_count) |
| { |
| uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; |
| uint32_t ecc_err_cnt, ecc_err_cnt_addr; |
| uint64_t mc_umc_status; |
| uint32_t mc_umc_status_addr; |
| |
| ecc_err_cnt_sel_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel); |
| ecc_err_cnt_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt); |
| mc_umc_status_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); |
| |
| /* select the lower chip and check the error count */ |
| ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset); |
| ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, |
| EccErrCntCsSel, 0); |
| WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); |
| ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset); |
| *error_count += |
| (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) - |
| UMC_V6_1_CE_CNT_INIT); |
| /* clear the lower chip err count */ |
| WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT); |
| |
| /* select the higher chip and check the err counter */ |
| ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, |
| EccErrCntCsSel, 1); |
| WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); |
| ecc_err_cnt = RREG32(ecc_err_cnt_addr + umc_reg_offset); |
| *error_count += |
| (REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) - |
| UMC_V6_1_CE_CNT_INIT); |
| /* clear the higher chip err count */ |
| WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT); |
| |
| /* check for SRAM correctable error |
| MCUMC_STATUS is a 64 bit register */ |
| mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset); |
| if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, ErrorCodeExt) == 6 && |
| 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_1_querry_uncorrectable_error_count(struct amdgpu_device *adev, |
| uint32_t umc_reg_offset, |
| unsigned long *error_count) |
| { |
| uint64_t mc_umc_status; |
| uint32_t mc_umc_status_addr; |
| |
| mc_umc_status_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); |
| |
| /* check the MCUMC_STATUS */ |
| mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset); |
| 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_1_query_error_count(struct amdgpu_device *adev, |
| struct ras_err_data *err_data, uint32_t umc_reg_offset, |
| uint32_t channel_index) |
| { |
| umc_v6_1_query_correctable_error_count(adev, umc_reg_offset, |
| &(err_data->ce_count)); |
| umc_v6_1_querry_uncorrectable_error_count(adev, umc_reg_offset, |
| &(err_data->ue_count)); |
| } |
| |
| static void umc_v6_1_query_ras_error_count(struct amdgpu_device *adev, |
| void *ras_error_status) |
| { |
| amdgpu_umc_for_each_channel(umc_v6_1_query_error_count); |
| } |
| |
| static void umc_v6_1_query_error_address(struct amdgpu_device *adev, |
| struct ras_err_data *err_data, |
| uint32_t umc_reg_offset, uint32_t channel_index) |
| { |
| uint32_t lsb, mc_umc_status_addr; |
| uint64_t mc_umc_status, err_addr; |
| |
| mc_umc_status_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmMCA_UMC_UMC0_MCUMC_STATUST0); |
| |
| /* skip error address process if -ENOMEM */ |
| if (!err_data->err_addr) { |
| /* clear umc status */ |
| WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL); |
| return; |
| } |
| |
| mc_umc_status = RREG64_UMC(mc_umc_status_addr + umc_reg_offset); |
| |
| /* 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 = RREG64_PCIE(smnMCA_UMC0_MCUMC_ADDRT0 + umc_reg_offset * 4); |
| |
| /* the lowest lsb bits should be ignored */ |
| lsb = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, LSB); |
| err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr); |
| err_addr &= ~((0x1ULL << lsb) - 1); |
| |
| /* translate umc channel address to soc pa, 3 parts are included */ |
| err_data->err_addr[err_data->err_addr_cnt] = |
| ADDR_OF_8KB_BLOCK(err_addr) | |
| ADDR_OF_256B_BLOCK(channel_index) | |
| OFFSET_IN_256B_BLOCK(err_addr); |
| |
| err_data->err_addr_cnt++; |
| } |
| |
| /* clear umc status */ |
| WREG64_UMC(mc_umc_status_addr + umc_reg_offset, 0x0ULL); |
| } |
| |
| static void umc_v6_1_query_ras_error_address(struct amdgpu_device *adev, |
| void *ras_error_status) |
| { |
| amdgpu_umc_for_each_channel(umc_v6_1_query_error_address); |
| } |
| |
| static void umc_v6_1_ras_init_per_channel(struct amdgpu_device *adev, |
| struct ras_err_data *err_data, |
| uint32_t umc_reg_offset, uint32_t channel_index) |
| { |
| uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; |
| uint32_t ecc_err_cnt_addr; |
| |
| ecc_err_cnt_sel_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCntSel); |
| ecc_err_cnt_addr = |
| SOC15_REG_OFFSET(UMC, 0, mmUMCCH0_0_EccErrCnt); |
| |
| /* select the lower chip and check the error count */ |
| ecc_err_cnt_sel = RREG32(ecc_err_cnt_sel_addr + umc_reg_offset); |
| ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, |
| EccErrCntCsSel, 0); |
| /* set ce error interrupt type to APIC based interrupt */ |
| ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, |
| EccErrInt, 0x1); |
| WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); |
| /* set error count to initial value */ |
| WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT); |
| |
| /* select the higher chip and check the err counter */ |
| ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel, |
| EccErrCntCsSel, 1); |
| WREG32(ecc_err_cnt_sel_addr + umc_reg_offset, ecc_err_cnt_sel); |
| WREG32(ecc_err_cnt_addr + umc_reg_offset, UMC_V6_1_CE_CNT_INIT); |
| } |
| |
| static void umc_v6_1_ras_init(struct amdgpu_device *adev) |
| { |
| void *ras_error_status = NULL; |
| |
| amdgpu_umc_for_each_channel(umc_v6_1_ras_init_per_channel); |
| } |
| |
| const struct amdgpu_umc_funcs umc_v6_1_funcs = { |
| .ras_init = umc_v6_1_ras_init, |
| .query_ras_error_count = umc_v6_1_query_ras_error_count, |
| .query_ras_error_address = umc_v6_1_query_ras_error_address, |
| .enable_umc_index_mode = umc_v6_1_enable_umc_index_mode, |
| .disable_umc_index_mode = umc_v6_1_disable_umc_index_mode, |
| }; |
