/* * 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 uint32_t umc_v6_1_get_umc_inst(struct amdgpu_device *adev) { uint32_t rsmu_umc_index; rsmu_umc_index = RREG32_SOC15(RSMU, 0, mmRSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU); return REG_GET_FIELD(rsmu_umc_index, RSMU_UMC_INDEX_REGISTER_NBIF_VG20_GPU, RSMU_UMC_INDEX_INSTANCE); } 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, retired_page; struct eeprom_table_record *err_rec; 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; } err_rec = &err_data->err_addr[err_data->err_addr_cnt]; 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 */ 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_v6_1_get_umc_inst(adev); 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_err_cnt_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_err_cnt_init(struct amdgpu_device *adev) { void *ras_error_status = NULL; amdgpu_umc_for_each_channel(umc_v6_1_err_cnt_init_per_channel); } const struct amdgpu_umc_funcs umc_v6_1_funcs = { .err_cnt_init = umc_v6_1_err_cnt_init, .ras_late_init = amdgpu_umc_ras_late_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, };