[PATCH Review 2/2] drm/amdgpu: print umc correctable error address

[Stanley.Yang]

Signed-off-by: Stanley.Yang <Stanley.Yang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  5 ++
 drivers/gpu/drm/amd/amdgpu/umc_v6_7.c         | 55 ++++++++++++++++++-
 .../drm/amd/pm/swsmu/smu13/aldebaran_ppt.c    |  2 +
 3 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 3f23f9ad3249..985b8cddb5a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1108,6 +1108,11 @@ struct amdgpu_device {
 
 	bool                            scpm_enabled;
 	uint32_t                        scpm_status;
+
+	/* Determine smu ecctable whether support
+	 * record correctable error address
+	 */
+	int record_ce_addr_supported;
 };
 
 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
diff --git a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
index 606892dbea1c..47bd39e52e9b 100644
--- a/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
+++ b/drivers/gpu/drm/amd/amdgpu/umc_v6_7.c
@@ -119,6 +119,27 @@ static void umc_v6_7_ecc_info_query_correctable_error_count(struct amdgpu_device
 		*error_count += 1;
 
 		umc_v6_7_query_error_status_helper(adev, mc_umc_status, umc_reg_offset);
+
+		if (adev->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);
+
+			/* clear [C4 C3 C2] in soc physical address */
+			soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
+
+			dev_info(adev->dev, "Error Address(PA): 0x%llx\n", soc_pa);
+		}
 	}
 }
 
@@ -251,7 +272,9 @@ static void umc_v6_7_ecc_info_query_ras_error_address(struct amdgpu_device *adev
 
 static void umc_v6_7_query_correctable_error_count(struct amdgpu_device *adev,
 						   uint32_t umc_reg_offset,
-						   unsigned long *error_count)
+						   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;
@@ -295,6 +318,33 @@ static void umc_v6_7_query_correctable_error_count(struct amdgpu_device *adev,
 		*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);
+
+			/* clear [C4 C3 C2] in soc physical address */
+			soc_pa &= ~(0x7ULL << UMC_V6_7_PA_C2_BIT);
+			dev_info(adev->dev, "Error Address(PA): 0x%llx\n", soc_pa);
+		}
 	}
 }
 
@@ -395,7 +445,8 @@ static void umc_v6_7_query_ras_error_count(struct amdgpu_device *adev,
 							 ch_inst);
 		umc_v6_7_query_correctable_error_count(adev,
 						       umc_reg_offset,
-						       &(err_data->ce_count));
+						       &(err_data->ce_count),
+						       ch_inst, umc_inst);
 		umc_v6_7_querry_uncorrectable_error_count(adev,
 							  umc_reg_offset,
 							  &(err_data->ue_count));
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
index e58df9490cec..e182088b4ac8 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c
@@ -1908,6 +1908,8 @@ static ssize_t aldebaran_get_ecc_info(struct smu_context *smu,
 				ecc_table_v2->EccInfo[i].mca_umc_addr;
 			ecc_info_per_channel->mca_ceumc_addr =
 				ecc_table_v2->EccInfo[i].mca_ceumc_addr;
+			if (!smu->adev->record_ce_addr_supported)
+				smu->adev->record_ce_addr_supported =1;
 		}
 	}
 
-- 
2.17.1