Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 557 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
new file mode 100644
index 000000000..5d5d031c9
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
@@ -0,0 +1,557 @@
+/*
+ * Copyright 2021 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_7.h"
+#include "amdgpu_ras.h"
+#include "amdgpu_umc.h"
+#include "amdgpu.h"
+
+#include "umc/umc_6_7_0_offset.h"
+#include "umc/umc_6_7_0_sh_mask.h"
+
+const uint32_t
+	umc_v6_7_channel_idx_tbl_second[UMC_V6_7_UMC_INSTANCE_NUM][UMC_V6_7_CHANNEL_INSTANCE_NUM] = {
+		{28, 20, 24, 16, 12, 4, 8, 0},
+		{6, 30, 2, 26, 22, 14, 18, 10},
+		{19, 11, 15, 7, 3, 27, 31, 23},
+		{9, 1, 5, 29, 25, 17, 21, 13}
+};
+const uint32_t
+	umc_v6_7_channel_idx_tbl_first[UMC_V6_7_UMC_INSTANCE_NUM][UMC_V6_7_CHANNEL_INSTANCE_NUM] = {
+		{19, 11, 15, 7,	3, 27, 31, 23},
+		{9, 1, 5, 29, 25, 17, 21, 13},
+		{28, 20, 24, 16, 12, 4, 8, 0},
+		{6, 30, 2, 26, 22, 14, 18, 10},
+};
+
+static inline uint32_t get_umc_v6_7_reg_offset(struct amdgpu_device *adev,
+					      uint32_t umc_inst,
+					      uint32_t ch_inst)
+{
+	uint32_t index = umc_inst * adev->umc.channel_inst_num + ch_inst;
+
+	/* adjust umc and channel index offset,
+	 * the register address is not linear on each umc instace */
+	umc_inst = index / 4;
+	ch_inst = index % 4;
+
+	return adev->umc.channel_offs * ch_inst + UMC_V6_7_INST_DIST * umc_inst;
+}
+
+static inline uint32_t get_umc_v6_7_channel_index(struct amdgpu_device *adev,
+					      uint32_t umc_inst,
+					      uint32_t ch_inst)
+{
+	return adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
+}
+
+static void umc_v6_7_query_error_status_helper(struct amdgpu_device *adev,
+						  uint64_t mc_umc_status, uint32_t umc_reg_offset)
+{
+	uint32_t mc_umc_addr;
+	uint64_t reg_value;
+
+	if (REG_GET_FIELD(mc_umc_status, MCA_UMC_UMC0_MCUMC_STATUST0, Deferred) == 1)
+		dev_info(adev->dev, "Deferred error, no user action is needed.\n");
+
+	if (mc_umc_status)
+		dev_info(adev->dev, "MCA STATUS 0x%llx, umc_reg_offset 0x%x\n", mc_umc_status, umc_reg_offset);
+
+	/* print IPID registers value */
+	mc_umc_addr =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_IPIDT0);
+	reg_value = RREG64_PCIE((mc_umc_addr + umc_reg_offset) * 4);
+	if (reg_value)
+		dev_info(adev->dev, "MCA IPID 0x%llx, umc_reg_offset 0x%x\n", reg_value, umc_reg_offset);
+
+	/* print SYND registers value */
+	mc_umc_addr =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_SYNDT0);
+	reg_value = RREG64_PCIE((mc_umc_addr + umc_reg_offset) * 4);
+	if (reg_value)
+		dev_info(adev->dev, "MCA SYND 0x%llx, umc_reg_offset 0x%x\n", reg_value, umc_reg_offset);
+
+	/* print MISC0 registers value */
+	mc_umc_addr =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_MISC0T0);
+	reg_value = RREG64_PCIE((mc_umc_addr + umc_reg_offset) * 4);
+	if (reg_value)
+		dev_info(adev->dev, "MCA MISC0 0x%llx, umc_reg_offset 0x%x\n", reg_value, umc_reg_offset);
+}
+
+static void umc_v6_7_ecc_info_query_correctable_error_count(struct amdgpu_device *adev,
+						   uint32_t umc_inst, uint32_t ch_inst,
+						   unsigned long *error_count)
+{
+	uint64_t mc_umc_status;
+	uint32_t eccinfo_table_idx;
+	uint32_t umc_reg_offset;
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+
+	umc_reg_offset = get_umc_v6_7_reg_offset(adev,
+						umc_inst, ch_inst);
+
+	eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst;
+	/* check for SRAM correctable error
+	  MCUMC_STATUS is a 64 bit register */
+	mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status;
+	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, CECC) == 1) {
+		*error_count += 1;
+
+		umc_v6_7_query_error_status_helper(adev, mc_umc_status, umc_reg_offset);
+
+		if (ras->umc_ecc.record_ce_addr_supported)	{
+			uint64_t err_addr, soc_pa;
+			uint32_t channel_index =
+				adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
+
+			err_addr = ras->umc_ecc.ecc[eccinfo_table_idx].mca_ceumc_addr;
+			err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
+			/* translate umc channel address to soc pa, 3 parts are included */
+			soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
+					ADDR_OF_256B_BLOCK(channel_index) |
+					OFFSET_IN_256B_BLOCK(err_addr);
+
+			/* The umc channel bits are not original values, they are hashed */
+			SET_CHANNEL_HASH(channel_index, soc_pa);
+
+			dev_info(adev->dev, "Error Address(PA): 0x%llx\n", soc_pa);
+		}
+	}
+}
+
+static void umc_v6_7_ecc_info_querry_uncorrectable_error_count(struct amdgpu_device *adev,
+							  uint32_t umc_inst, uint32_t ch_inst,
+						      unsigned long *error_count)
+{
+	uint64_t mc_umc_status;
+	uint32_t eccinfo_table_idx;
+	uint32_t umc_reg_offset;
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+
+	umc_reg_offset = get_umc_v6_7_reg_offset(adev,
+						umc_inst, ch_inst);
+
+	eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst;
+	/* check the MCUMC_STATUS */
+	mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status;
+	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;
+
+		umc_v6_7_query_error_status_helper(adev, mc_umc_status, umc_reg_offset);
+	}
+}
+
+static void umc_v6_7_ecc_info_query_ras_error_count(struct amdgpu_device *adev,
+					   void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+
+	uint32_t umc_inst        = 0;
+	uint32_t ch_inst         = 0;
+
+	/*TODO: driver needs to toggle DF Cstate to ensure
+	 * safe access of UMC registers. Will add the protection */
+	LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
+		umc_v6_7_ecc_info_query_correctable_error_count(adev,
+						      umc_inst, ch_inst,
+						      &(err_data->ce_count));
+		umc_v6_7_ecc_info_querry_uncorrectable_error_count(adev,
+						      umc_inst, ch_inst,
+							  &(err_data->ue_count));
+	}
+}
+
+static void umc_v6_7_convert_error_address(struct amdgpu_device *adev,
+					struct ras_err_data *err_data, uint64_t err_addr,
+					uint32_t ch_inst, uint32_t umc_inst)
+{
+	uint32_t channel_index;
+	uint64_t soc_pa, retired_page, column;
+
+	channel_index =
+		adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
+	/* translate umc channel address to soc pa, 3 parts are included */
+	soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
+			ADDR_OF_256B_BLOCK(channel_index) |
+			OFFSET_IN_256B_BLOCK(err_addr);
+
+	/* The umc channel bits are not original values, they are hashed */
+	SET_CHANNEL_HASH(channel_index, soc_pa);
+
+	/* clear [C4 C3 C2] in soc physical address */
+	soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
+
+	/* loop for all possibilities of [C4 C3 C2] */
+	for (column = 0; column < UMC_V6_7_NA_MAP_PA_NUM; column++) {
+		retired_page = soc_pa | (column << UMC_V6_7_PA_C2_BIT);
+		dev_info(adev->dev, "Error Address(PA): 0x%llx\n", retired_page);
+		amdgpu_umc_fill_error_record(err_data, err_addr,
+			retired_page, channel_index, umc_inst);
+
+		/* shift R14 bit */
+		retired_page ^= (0x1ULL << UMC_V6_7_PA_R14_BIT);
+		dev_info(adev->dev, "Error Address(PA): 0x%llx\n", retired_page);
+		amdgpu_umc_fill_error_record(err_data, err_addr,
+			retired_page, channel_index, umc_inst);
+	}
+}
+
+static void umc_v6_7_ecc_info_query_error_address(struct amdgpu_device *adev,
+					 struct ras_err_data *err_data,
+					 uint32_t ch_inst,
+					 uint32_t umc_inst)
+{
+	uint64_t mc_umc_status, err_addr;
+	uint32_t eccinfo_table_idx;
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+
+	eccinfo_table_idx = umc_inst * adev->umc.channel_inst_num + ch_inst;
+	mc_umc_status = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_status;
+
+	if (mc_umc_status == 0)
+		return;
+
+	if (!err_data->err_addr)
+		return;
+
+	/* calculate error address if ue 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) {
+
+		err_addr = ras->umc_ecc.ecc[eccinfo_table_idx].mca_umc_addr;
+		err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
+
+		umc_v6_7_convert_error_address(adev, err_data, err_addr,
+					ch_inst, umc_inst);
+	}
+}
+
+static void umc_v6_7_ecc_info_query_ras_error_address(struct amdgpu_device *adev,
+					     void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+
+	uint32_t umc_inst        = 0;
+	uint32_t ch_inst         = 0;
+
+	/*TODO: driver needs to toggle DF Cstate to ensure
+	 * safe access of UMC resgisters. Will add the protection
+	 * when firmware interface is ready */
+	LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
+		umc_v6_7_ecc_info_query_error_address(adev,
+					     err_data,
+					     ch_inst,
+					     umc_inst);
+	}
+}
+
+static void umc_v6_7_query_correctable_error_count(struct amdgpu_device *adev,
+						   uint32_t umc_reg_offset,
+						   unsigned long *error_count,
+						   uint32_t ch_inst,
+						   uint32_t umc_inst)
+{
+	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;
+
+	/* UMC 6_1_1 registers */
+	ecc_err_cnt_sel_addr =
+		SOC15_REG_OFFSET(UMC, 0, regUMCCH0_0_EccErrCntSel);
+	ecc_err_cnt_addr =
+		SOC15_REG_OFFSET(UMC, 0, regUMCCH0_0_EccErrCnt);
+	mc_umc_status_addr =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
+
+	/* select the lower chip and check the error count */
+	ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4);
+	ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel, UMCCH0_0_EccErrCntSel,
+					EccErrCntCsSel, 0);
+	WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
+
+	ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
+	*error_count +=
+		(REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
+		 UMC_V6_7_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_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4, ecc_err_cnt_sel);
+
+	ecc_err_cnt = RREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4);
+	*error_count +=
+		(REG_GET_FIELD(ecc_err_cnt, UMCCH0_0_EccErrCnt, EccErrCnt) -
+		 UMC_V6_7_CE_CNT_INIT);
+
+	/* check for SRAM correctable error
+	  MCUMC_STATUS is a 64 bit register */
+	mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
+	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, CECC) == 1) {
+		*error_count += 1;
+
+		umc_v6_7_query_error_status_helper(adev, mc_umc_status, umc_reg_offset);
+
+		{
+			uint64_t err_addr, soc_pa;
+			uint32_t mc_umc_addrt0;
+			uint32_t channel_index;
+
+			mc_umc_addrt0 =
+				SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_ADDRT0);
+
+			channel_index =
+				adev->umc.channel_idx_tbl[umc_inst * adev->umc.channel_inst_num + ch_inst];
+
+			err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4);
+			err_addr = REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
+
+			/* translate umc channel address to soc pa, 3 parts are included */
+			soc_pa = ADDR_OF_8KB_BLOCK(err_addr) |
+					ADDR_OF_256B_BLOCK(channel_index) |
+					OFFSET_IN_256B_BLOCK(err_addr);
+
+			/* The umc channel bits are not original values, they are hashed */
+			SET_CHANNEL_HASH(channel_index, soc_pa);
+
+			dev_info(adev->dev, "Error Address(PA): 0x%llx\n", soc_pa);
+		}
+	}
+}
+
+static void umc_v6_7_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, regMCA_UMC_UMC0_MCUMC_STATUST0);
+
+	/* check the MCUMC_STATUS */
+	mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
+	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;
+
+		umc_v6_7_query_error_status_helper(adev, mc_umc_status, umc_reg_offset);
+	}
+}
+
+static void umc_v6_7_reset_error_count_per_channel(struct amdgpu_device *adev,
+						   uint32_t umc_reg_offset)
+{
+	uint32_t ecc_err_cnt_addr;
+	uint32_t ecc_err_cnt_sel, ecc_err_cnt_sel_addr;
+
+	ecc_err_cnt_sel_addr =
+		SOC15_REG_OFFSET(UMC, 0,
+				regUMCCH0_0_EccErrCntSel);
+	ecc_err_cnt_addr =
+		SOC15_REG_OFFSET(UMC, 0,
+				regUMCCH0_0_EccErrCnt);
+
+	/* select the lower chip */
+	ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
+				       umc_reg_offset) * 4);
+	ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
+					UMCCH0_0_EccErrCntSel,
+					EccErrCntCsSel, 0);
+	WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
+			ecc_err_cnt_sel);
+
+	/* clear lower chip error count */
+	WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
+			UMC_V6_7_CE_CNT_INIT);
+
+	/* select the higher chip */
+	ecc_err_cnt_sel = RREG32_PCIE((ecc_err_cnt_sel_addr +
+					umc_reg_offset) * 4);
+	ecc_err_cnt_sel = REG_SET_FIELD(ecc_err_cnt_sel,
+					UMCCH0_0_EccErrCntSel,
+					EccErrCntCsSel, 1);
+	WREG32_PCIE((ecc_err_cnt_sel_addr + umc_reg_offset) * 4,
+			ecc_err_cnt_sel);
+
+	/* clear higher chip error count */
+	WREG32_PCIE((ecc_err_cnt_addr + umc_reg_offset) * 4,
+			UMC_V6_7_CE_CNT_INIT);
+}
+
+static void umc_v6_7_reset_error_count(struct amdgpu_device *adev)
+{
+	uint32_t umc_inst        = 0;
+	uint32_t ch_inst         = 0;
+	uint32_t umc_reg_offset  = 0;
+
+	LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
+		umc_reg_offset = get_umc_v6_7_reg_offset(adev,
+							 umc_inst,
+							 ch_inst);
+
+		umc_v6_7_reset_error_count_per_channel(adev,
+						       umc_reg_offset);
+	}
+}
+
+static void umc_v6_7_query_ras_error_count(struct amdgpu_device *adev,
+					   void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+
+	uint32_t umc_inst        = 0;
+	uint32_t ch_inst         = 0;
+	uint32_t umc_reg_offset  = 0;
+
+	/*TODO: driver needs to toggle DF Cstate to ensure
+	 * safe access of UMC registers. Will add the protection */
+	LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
+		umc_reg_offset = get_umc_v6_7_reg_offset(adev,
+							 umc_inst,
+							 ch_inst);
+		umc_v6_7_query_correctable_error_count(adev,
+						       umc_reg_offset,
+						       &(err_data->ce_count),
+						       ch_inst, umc_inst);
+		umc_v6_7_querry_uncorrectable_error_count(adev,
+							  umc_reg_offset,
+							  &(err_data->ue_count));
+	}
+
+	umc_v6_7_reset_error_count(adev);
+}
+
+static void umc_v6_7_query_error_address(struct amdgpu_device *adev,
+					 struct ras_err_data *err_data,
+					 uint32_t umc_reg_offset, uint32_t ch_inst,
+					 uint32_t umc_inst)
+{
+	uint32_t mc_umc_status_addr;
+	uint64_t mc_umc_status = 0, mc_umc_addrt0, err_addr;
+
+	mc_umc_status_addr =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_STATUST0);
+	mc_umc_addrt0 =
+		SOC15_REG_OFFSET(UMC, 0, regMCA_UMC_UMC0_MCUMC_ADDRT0);
+
+	mc_umc_status = RREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4);
+
+	if (mc_umc_status == 0)
+		return;
+
+	if (!err_data->err_addr) {
+		/* clear umc status */
+		WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
+		return;
+	}
+
+	/* calculate error address if ue 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) {
+		err_addr = RREG64_PCIE((mc_umc_addrt0 + umc_reg_offset) * 4);
+		err_addr =
+			REG_GET_FIELD(err_addr, MCA_UMC_UMC0_MCUMC_ADDRT0, ErrorAddr);
+
+		umc_v6_7_convert_error_address(adev, err_data, err_addr,
+					ch_inst, umc_inst);
+	}
+
+	/* clear umc status */
+	WREG64_PCIE((mc_umc_status_addr + umc_reg_offset) * 4, 0x0ULL);
+}
+
+static void umc_v6_7_query_ras_error_address(struct amdgpu_device *adev,
+					     void *ras_error_status)
+{
+	struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status;
+
+	uint32_t umc_inst        = 0;
+	uint32_t ch_inst         = 0;
+	uint32_t umc_reg_offset  = 0;
+
+	/*TODO: driver needs to toggle DF Cstate to ensure
+	 * safe access of UMC resgisters. Will add the protection
+	 * when firmware interface is ready */
+	LOOP_UMC_INST_AND_CH(umc_inst, ch_inst) {
+		umc_reg_offset = get_umc_v6_7_reg_offset(adev,
+							 umc_inst,
+							 ch_inst);
+		umc_v6_7_query_error_address(adev,
+					     err_data,
+					     umc_reg_offset, ch_inst,
+					     umc_inst);
+	}
+}
+
+static uint32_t umc_v6_7_query_ras_poison_mode_per_channel(
+						struct amdgpu_device *adev,
+						uint32_t umc_reg_offset)
+{
+	uint32_t ecc_ctrl_addr, ecc_ctrl;
+
+	ecc_ctrl_addr =
+		SOC15_REG_OFFSET(UMC, 0, regUMCCH0_0_EccCtrl);
+	ecc_ctrl = RREG32_PCIE((ecc_ctrl_addr +
+					umc_reg_offset) * 4);
+
+	return REG_GET_FIELD(ecc_ctrl, UMCCH0_0_EccCtrl, UCFatalEn);
+}
+
+static bool umc_v6_7_query_ras_poison_mode(struct amdgpu_device *adev)
+{
+	uint32_t umc_reg_offset  = 0;
+
+	/* Enabling fatal error in umc instance0 channel0 will be
+	 * considered as fatal error mode
+	 */
+	umc_reg_offset = get_umc_v6_7_reg_offset(adev, 0, 0);
+	return !umc_v6_7_query_ras_poison_mode_per_channel(adev, umc_reg_offset);
+}
+
+const struct amdgpu_ras_block_hw_ops umc_v6_7_ras_hw_ops = {
+	.query_ras_error_count = umc_v6_7_query_ras_error_count,
+	.query_ras_error_address = umc_v6_7_query_ras_error_address,
+};
+
+struct amdgpu_umc_ras umc_v6_7_ras = {
+	.ras_block = {
+		.hw_ops = &umc_v6_7_ras_hw_ops,
+	},
+	.query_ras_poison_mode = umc_v6_7_query_ras_poison_mode,
+	.ecc_info_query_ras_error_count = umc_v6_7_ecc_info_query_ras_error_count,
+	.ecc_info_query_ras_error_address = umc_v6_7_ecc_info_query_ras_error_address,
+	.convert_ras_error_address = umc_v6_7_convert_error_address,
+};