drm/amdgpu: Avoid excessive dmesg log

KIQ access is not guaranteed to work reliably under all reset
situations. Avoid flooding dmesg with HDP flush failure messages.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Lijo Lazar

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

@@ -1298,7 +1298,8 @@ int amdgpu_kiq_hdp_flush(struct amdgpu_device *adev)
 failed_unlock:
 	spin_unlock_irqrestore(&kiq->ring_lock, flags);
 failed_kiq_hdp_flush:
-	dev_err(adev->dev, "failed to flush HDP via KIQ\n");
+	if (!amdgpu_in_reset(adev))
+		dev_err(adev->dev, "failed to flush HDP via KIQ\n");
 	return r < 0 ? r : -EIO;
 }