drm/amdgpu: Update programming for boot error reporting

AMDGPU_RAS_GPU_ERR_BOOT_STATUS field is no longer valid.
The polling sequence is also simplifed according to
the latest firmware change.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

@@ -4400,64 +4400,74 @@ int amdgpu_ras_error_statistic_de_count(struct ras_err_data *err_data,
 #define mmMP0_SMN_C2PMSG_92	0x1609C
 #define mmMP0_SMN_C2PMSG_126	0x160BE
 static void amdgpu_ras_boot_time_error_reporting(struct amdgpu_device *adev,
-						 u32 instance, u32 boot_error)
+						 u32 instance)
 {
 	u32 socket_id, aid_id, hbm_id;
-	u32 reg_data;
+	u32 fw_status;
+	u32 boot_error;
 	u64 reg_addr;
 
-	socket_id = AMDGPU_RAS_GPU_ERR_SOCKET_ID(boot_error);
-	aid_id = AMDGPU_RAS_GPU_ERR_AID_ID(boot_error);
-	hbm_id = AMDGPU_RAS_GPU_ERR_HBM_ID(boot_error);
-
 	/* The pattern for smn addressing in other SOC could be different from
 	 * the one for aqua_vanjaram. We should revisit the code if the pattern
 	 * is changed. In such case, replace the aqua_vanjaram implementation
 	 * with more common helper */
 	reg_addr = (mmMP0_SMN_C2PMSG_92 << 2) +
 		   aqua_vanjaram_encode_ext_smn_addressing(instance);
+	fw_status = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
 
-	reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
-	dev_err(adev->dev, "socket: %d, aid: %d, firmware boot failed, fw status is 0x%x\n",
-		socket_id, aid_id, reg_data);
+	reg_addr = (mmMP0_SMN_C2PMSG_126 << 2) +
+		   aqua_vanjaram_encode_ext_smn_addressing(instance);
+	boot_error = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
+
+	socket_id = AMDGPU_RAS_GPU_ERR_SOCKET_ID(boot_error);
+	aid_id = AMDGPU_RAS_GPU_ERR_AID_ID(boot_error);
+	hbm_id = AMDGPU_RAS_GPU_ERR_HBM_ID(boot_error);
 
 	if (AMDGPU_RAS_GPU_ERR_MEM_TRAINING(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, memory training failed\n",
-			 socket_id, aid_id, hbm_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, hbm: %d, fw_status: 0x%x, memory training failed\n",
+			 socket_id, aid_id, hbm_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_FW_LOAD(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, firmware load failed at boot time\n",
-			 socket_id, aid_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, fw_status: 0x%x, firmware load failed at boot time\n",
+			 socket_id, aid_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_WAFL_LINK_TRAINING(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, wafl link training failed\n",
-			 socket_id, aid_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, fw_status: 0x%x, wafl link training failed\n",
+			 socket_id, aid_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_XGMI_LINK_TRAINING(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, xgmi link training failed\n",
-			 socket_id, aid_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, fw_status: 0x%x, xgmi link training failed\n",
+			 socket_id, aid_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_USR_CP_LINK_TRAINING(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, usr cp link training failed\n",
-			 socket_id, aid_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, fw_status: 0x%x, usr cp link training failed\n",
+			 socket_id, aid_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_USR_DP_LINK_TRAINING(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, usr dp link training failed\n",
-			 socket_id, aid_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, fw_status: 0x%x, usr dp link training failed\n",
+			 socket_id, aid_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_HBM_MEM_TEST(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, hbm memory test failed\n",
-			 socket_id, aid_id, hbm_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, hbm: %d, fw_status: 0x%x, hbm memory test failed\n",
+			 socket_id, aid_id, hbm_id, fw_status);
 
 	if (AMDGPU_RAS_GPU_ERR_HBM_BIST_TEST(boot_error))
-		dev_info(adev->dev, "socket: %d, aid: %d, hbm: %d, hbm bist test failed\n",
-			 socket_id, aid_id, hbm_id);
+		dev_info(adev->dev,
+			 "socket: %d, aid: %d, hbm: %d, fw_status: 0x%x, hbm bist test failed\n",
+			 socket_id, aid_id, hbm_id, fw_status);
 }
 
-static int amdgpu_ras_wait_for_boot_complete(struct amdgpu_device *adev,
-					     u32 instance, u32 *boot_error)
+static bool amdgpu_ras_boot_error_detected(struct amdgpu_device *adev,
+					   u32 instance)
 {
-	u32 reg_addr;
+	u64 reg_addr;
 	u32 reg_data;
 	int retry_loop;
 
@@ -4466,41 +4476,22 @@ static int amdgpu_ras_wait_for_boot_complete(struct amdgpu_device *adev,
 
 	for (retry_loop = 0; retry_loop < AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT; retry_loop++) {
 		reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
-		if ((reg_data & AMDGPU_RAS_BOOT_STATUS_MASK) == AMDGPU_RAS_BOOT_STEADY_STATUS) {
-			*boot_error = AMDGPU_RAS_BOOT_SUCEESS;
-			return 0;
-		}
-		msleep(1);
-	}
-
-	/* The pattern for smn addressing in other SOC could be different from
-	 * the one for aqua_vanjaram. We should revisit the code if the pattern
-	 * is changed. In such case, replace the aqua_vanjaram implementation
-	 * with more common helper */
-	reg_addr = (mmMP0_SMN_C2PMSG_126 << 2) +
-		   aqua_vanjaram_encode_ext_smn_addressing(instance);
-
-	for (retry_loop = 0; retry_loop < AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT; retry_loop++) {
-		reg_data = amdgpu_device_indirect_rreg_ext(adev, reg_addr);
-		if (AMDGPU_RAS_GPU_ERR_BOOT_STATUS(reg_data)) {
-			*boot_error = reg_data;
-			return 0;
-		}
+		if ((reg_data & AMDGPU_RAS_BOOT_STATUS_MASK) == AMDGPU_RAS_BOOT_STEADY_STATUS)
+			return false;
+		else
 			msleep(1);
 	}
 
-	*boot_error = reg_data;
-	return -ETIME;
+	return true;
 }
 
 void amdgpu_ras_query_boot_status(struct amdgpu_device *adev, u32 num_instances)
 {
-	u32 boot_error = 0;
 	u32 i;
 
 	for (i = 0; i < num_instances; i++) {
-		if (amdgpu_ras_wait_for_boot_complete(adev, i, &boot_error))
-			amdgpu_ras_boot_time_error_reporting(adev, i, boot_error);
+		if (amdgpu_ras_boot_error_detected(adev, i))
+			amdgpu_ras_boot_time_error_reporting(adev, i);
 	}
 }
 

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h

@@ -47,12 +47,10 @@ struct amdgpu_iv_entry;
 #define AMDGPU_RAS_GPU_ERR_SOCKET_ID(x)			AMDGPU_GET_REG_FIELD(x, 10, 8)
 #define AMDGPU_RAS_GPU_ERR_AID_ID(x)			AMDGPU_GET_REG_FIELD(x, 12, 11)
 #define AMDGPU_RAS_GPU_ERR_HBM_ID(x)			AMDGPU_GET_REG_FIELD(x, 14, 13)
-#define AMDGPU_RAS_GPU_ERR_BOOT_STATUS(x)		AMDGPU_GET_REG_FIELD(x, 31, 31)
 
-#define AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT	1000
+#define AMDGPU_RAS_BOOT_STATUS_POLLING_LIMIT	100
 #define AMDGPU_RAS_BOOT_STEADY_STATUS		0xBA
 #define AMDGPU_RAS_BOOT_STATUS_MASK		0xFF
-#define AMDGPU_RAS_BOOT_SUCEESS			0x80000000
 
 #define AMDGPU_RAS_FLAG_INIT_BY_VBIOS		(0x1 << 0)
 /* position of instance value in sub_block_index of