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diff --git a/intern/opensubdiv/opensubdiv_device_context_cuda.h b/intern/opensubdiv/opensubdiv_device_context_cuda.h
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+/*
+ * Adopted from OpenSubdiv with the following license:
+ *
+ *   Copyright 2013 Pixar
+ *
+ *   Licensed under the Apache License, Version 2.0 (the "Apache License")
+ *   with the following modification; you may not use this file except in
+ *   compliance with the Apache License and the following modification to it:
+ *   Section 6. Trademarks. is deleted and replaced with:
+ *
+ *   6. Trademarks. This License does not grant permission to use the trade
+ *      names, trademarks, service marks, or product names of the Licensor
+ *      and its affiliates, except as required to comply with Section 4(c) of
+ *      the License and to reproduce the content of the NOTICE file.
+ *
+ *   You may obtain a copy of the Apache License at
+ *
+ *       http: //www.apache.org/licenses/LICENSE-2.0
+ *
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the Apache License with the above modification is
+ *   distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *   KIND, either express or implied. See the Apache License for the specific
+ *   language governing permissions and limitations under the Apache License.
+ *
+ */
+
+#ifndef __OPENSUBDIV_DEV_CE_CONTEXT_CUDA_H__
+#define __OPENSUBDIV_DEV_CE_CONTEXT_CUDA_H__
+
+struct ID3D11Device;
+
+class CudaDeviceContext {
+public:
+	CudaDeviceContext();
+	~CudaDeviceContext();
+
+	static bool HAS_CUDA_VERSION_4_0();
+
+	/* Initialze cuda device from the current GL context. */
+	bool Initialize();
+
+	/* Initialze cuda device from the ID3D11Device/ */
+	bool Initialize(ID3D11Device *device);
+
+	/* Returns true if the cuda device has already been initialized. */
+	bool IsInitialized() const {
+		return _initialized;
+	}
+private:
+	bool _initialized;
+};
+
+#endif  /* __OPENSUBDIV_DEV_CE_CONTEXT_OPENCL_H__ */