diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/umc_v8_14.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/umc_v8_14.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v8_14.c b/drivers/gpu/drm/amd/amdgpu/umc_v8_14.c new file mode 100644 index 000000000000..eaca10a3c4a9 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/umc_v8_14.c @@ -0,0 +1,160 @@ +/* + * Copyright 2024 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_v8_14.h" +#include "amdgpu_ras.h" +#include "amdgpu_umc.h" +#include "amdgpu.h" +#include "umc/umc_8_14_0_offset.h" +#include "umc/umc_8_14_0_sh_mask.h" + +static inline uint32_t get_umc_v8_14_reg_offset(struct amdgpu_device *adev, + uint32_t umc_inst, + uint32_t ch_inst) +{ + return adev->umc.channel_offs * ch_inst + UMC_V8_14_INST_DIST * umc_inst; +} + +static int umc_v8_14_clear_error_count_per_channel(struct amdgpu_device *adev, + uint32_t node_inst, uint32_t umc_inst, + uint32_t ch_inst, void *data) +{ + uint32_t ecc_err_cnt_addr; + uint32_t umc_reg_offset = + get_umc_v8_14_reg_offset(adev, umc_inst, ch_inst); + + ecc_err_cnt_addr = + SOC15_REG_OFFSET(UMC, 0, regUMCCH0_GeccErrCnt); + + /* clear error count */ + WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, + UMC_V8_14_CE_CNT_INIT); + + return 0; +} + +static void umc_v8_14_clear_error_count(struct amdgpu_device *adev) +{ + amdgpu_umc_loop_channels(adev, + umc_v8_14_clear_error_count_per_channel, NULL); +} + +static void umc_v8_14_query_correctable_error_count(struct amdgpu_device *adev, + uint32_t umc_reg_offset, + unsigned long *error_count) +{ + uint32_t ecc_err_cnt, ecc_err_cnt_addr; + + /* UMC 8_14 registers */ + ecc_err_cnt_addr = + SOC15_REG_OFFSET(UMC, 0, regUMCCH0_GeccErrCnt); + + ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); + *error_count += + (REG_GET_FIELD(ecc_err_cnt, UMCCH0_GeccErrCnt, GeccErrCnt) - + UMC_V8_14_CE_CNT_INIT); +} + +static void umc_v8_14_query_uncorrectable_error_count(struct amdgpu_device *adev, + uint32_t umc_reg_offset, + unsigned long *error_count) +{ + uint32_t ecc_err_cnt, ecc_err_cnt_addr; + /* UMC 8_14 registers */ + ecc_err_cnt_addr = + SOC15_REG_OFFSET(UMC, 0, regUMCCH0_GeccErrCnt); + + ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4); + *error_count += + (REG_GET_FIELD(ecc_err_cnt, UMCCH0_GeccErrCnt, GeccUnCorrErrCnt) - + UMC_V8_14_CE_CNT_INIT); +} + +static int umc_v8_14_query_error_count_per_channel(struct amdgpu_device *adev, + uint32_t node_inst, uint32_t umc_inst, + uint32_t ch_inst, void *data) +{ + struct ras_err_data *err_data = (struct ras_err_data *)data; + uint32_t umc_reg_offset = + get_umc_v8_14_reg_offset(adev, umc_inst, ch_inst); + + umc_v8_14_query_correctable_error_count(adev, + umc_reg_offset, + &(err_data->ce_count)); + umc_v8_14_query_uncorrectable_error_count(adev, + umc_reg_offset, + &(err_data->ue_count)); + + return 0; +} + +static void umc_v8_14_query_ras_error_count(struct amdgpu_device *adev, + void *ras_error_status) +{ + amdgpu_umc_loop_channels(adev, + umc_v8_14_query_error_count_per_channel, ras_error_status); + + umc_v8_14_clear_error_count(adev); +} + +static int umc_v8_14_err_cnt_init_per_channel(struct amdgpu_device *adev, + uint32_t node_inst, uint32_t umc_inst, + uint32_t ch_inst, void *data) +{ + uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr; + uint32_t ecc_err_cnt_addr; + uint32_t umc_reg_offset = + get_umc_v8_14_reg_offset(adev, umc_inst, ch_inst); + + ecc_err_cnt_sel_addr = + SOC15_REG_OFFSET(UMC, 0, regUMCCH0_GeccErrCntSel); + ecc_err_cnt_addr = + SOC15_REG_OFFSET(UMC, 0, regUMCCH0_GeccErrCnt); + + ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4); + + /* set ce error interrupt type to APIC based interrupt */ + ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_GeccErrCntSel, + GeccErrInt, 0x1); + WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel); + /* set error count to initial value */ + WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4, UMC_V8_14_CE_CNT_INIT); + + return 0; +} + +static void umc_v8_14_err_cnt_init(struct amdgpu_device *adev) +{ + amdgpu_umc_loop_channels(adev, + umc_v8_14_err_cnt_init_per_channel, NULL); +} + +const struct amdgpu_ras_block_hw_ops umc_v8_14_ras_hw_ops = { + .query_ras_error_count = umc_v8_14_query_ras_error_count, +}; + +struct amdgpu_umc_ras umc_v8_14_ras = { + .ras_block = { + .hw_ops = &umc_v8_14_ras_hw_ops, + }, + .err_cnt_init = umc_v8_14_err_cnt_init, +}; |