[PATCH] drm/amdgpu: covert ras status to kernel errno

[Zhang, Hawking]

[AMD Public Use]

Please explicitly print out warning message for TA_RAS_STATUS__ERROR_ASD_READ_WRITE ASIC prior to aldebaran, and TA_RAS_STATUS__ERROR_RAS_READ_WRITE for aldebaran and onwards. With that fixed, the patch is

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Dennis Li <Dennis.Li at amd.com> 
Sent: Monday, May 10, 2021 11:24
To: amd-gfx at lists.freedesktop.org; Deucher, Alexander <Alexander.Deucher at amd.com>; Kuehling, Felix <Felix.Kuehling at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>
Cc: Li, Dennis <Dennis.Li at amd.com>
Subject: [PATCH] drm/amdgpu: covert ras status to kernel errno

The original codes use ras status and kernl errno together in the same function, which is a wrong code style.

Signed-off-by: Dennis Li <Dennis.Li at amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 17b728d2c1f2..231479b67b33 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1114,6 +1114,28 @@ int psp_ras_invoke(struct psp_context *psp, uint32_t ta_cmd_id)
 	return ret;
 }
 
+static int psp_ras_status_to_errno(struct amdgpu_device *adev,
+					 enum ta_ras_status ras_status)
+{
+	int ret = -EINVAL;
+
+	switch (ras_status) {
+	case TA_RAS_STATUS__SUCCESS:
+		ret = 0;
+		break;
+	case TA_RAS_STATUS__RESET_NEEDED:
+		ret = -EAGAIN;
+		break;
+	case TA_RAS_STATUS__ERROR_RAS_NOT_AVAILABLE:
+		dev_warn(adev->dev, "RAS WARN: ras function unavailable\n");
+		break;
+	default:
+		dev_err(adev->dev, "RAS ERROR: ras function failed ret 0x%X\n", ret);
+	}
+
+	return ret;
+}
+
 int psp_ras_enable_features(struct psp_context *psp,
 		union ta_ras_cmd_input *info, bool enable)  { @@ -1137,7 +1159,7 @@ int psp_ras_enable_features(struct psp_context *psp,
 	if (ret)
 		return -EINVAL;
 
-	return ras_cmd->ras_status;
+	return psp_ras_status_to_errno(psp->adev, ras_cmd->ras_status);
 }
 
 static int psp_ras_terminate(struct psp_context *psp) @@ -1220,7 +1242,7 @@ int psp_ras_trigger_error(struct psp_context *psp,
 	if (amdgpu_ras_intr_triggered())
 		return 0;
 
-	return ras_cmd->ras_status;
+	return psp_ras_status_to_errno(psp->adev, ras_cmd->ras_status);
 }
 // ras end
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index ebbe2c5190c4..9b06cb58cff2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -586,29 +586,6 @@ struct ras_manager *amdgpu_ras_find_obj(struct amdgpu_device *adev,  }
 /* obj end */
 
-static void amdgpu_ras_parse_status_code(struct amdgpu_device *adev,
-					 const char* invoke_type,
-					 const char* block_name,
-					 enum ta_ras_status ret)
-{
-	switch (ret) {
-	case TA_RAS_STATUS__SUCCESS:
-		return;
-	case TA_RAS_STATUS__ERROR_RAS_NOT_AVAILABLE:
-		dev_warn(adev->dev,
-			"RAS WARN: %s %s currently unavailable\n",
-			invoke_type,
-			block_name);
-		break;
-	default:
-		dev_err(adev->dev,
-			"RAS ERROR: %s %s error failed ret 0x%X\n",
-			invoke_type,
-			block_name,
-			ret);
-	}
-}
-
 /* feature ctl begin */
 static int amdgpu_ras_is_feature_allowed(struct amdgpu_device *adev,
 		struct ras_common_if *head)
@@ -705,15 +682,10 @@ int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
 	if (!amdgpu_ras_intr_triggered()) {
 		ret = psp_ras_enable_features(&adev->psp, info, enable);
 		if (ret) {
-			amdgpu_ras_parse_status_code(adev,
-						     enable ? "enable":"disable",
-						     ras_block_str(head->block),
-						    (enum ta_ras_status)ret);
-			if (ret == TA_RAS_STATUS__RESET_NEEDED)
-				ret = -EAGAIN;
-			else
-				ret = -EINVAL;
-
+			dev_err(adev->dev, "ras %s %s failed %d\n",
+				enable ? "enable":"disable",
+				ras_block_str(head->block),
+				ret);
 			goto out;
 		}
 	}
@@ -1058,10 +1030,9 @@ int amdgpu_ras_error_inject(struct amdgpu_device *adev,
 		ret = -EINVAL;
 	}
 
-	amdgpu_ras_parse_status_code(adev,
-				     "inject",
-				     ras_block_str(info->head.block),
-				     (enum ta_ras_status)ret);
+	if (ret)
+		dev_err(adev->dev, "ras inject %s failed %d\n",
+			ras_block_str(info->head.block), ret);
 
 	return ret;
 }
--
2.17.1