diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/umc_v6_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/umc_v6_1.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_1.c b/drivers/gpu/drm/amd/amdgpu/umc_v6_1.c new file mode 100644 index 000000000000..8502e736f721 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_1.c @@ -0,0 +1,255 @@ +/* + * 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, +}; |