COMPMID-793 : Add graph intermediate representation
Change-Id: Ic1685de4e19e0ac79669ef2da64e1dc96c7ea0bf
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/115248
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/arm_compute/graph2/IDeviceBackend.h b/arm_compute/graph2/IDeviceBackend.h
new file mode 100644
index 0000000..771ff85
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+++ b/arm_compute/graph2/IDeviceBackend.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_GRAPH2_IDEVICEBACKEND_H__
+#define __ARM_COMPUTE_GRAPH2_IDEVICEBACKEND_H__
+
+#include "arm_compute/graph2/ITensorHandle.h"
+#include "arm_compute/graph2/Types.h"
+#include "arm_compute/runtime/IFunction.h"
+#include "arm_compute/runtime/IMemoryManager.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+namespace graph2
+{
+// Forward declarations
+class Graph;
+class GraphContext;
+class Tensor;
+class INode;
+
+namespace backends
+{
+/** Device backend interface */
+class IDeviceBackend
+{
+public:
+ /** Virtual Destructor */
+ virtual ~IDeviceBackend() = default;
+ /** Initializes the backend */
+ virtual void initialize_backend() = 0;
+ /** Setups the given graph context
+ *
+ * @param[in] ctx Graph context
+ */
+ virtual void setup_backend_context(GraphContext &ctx) = 0;
+ /** Create a backend Tensor
+ *
+ * @param[in] tensor The tensor we want to create a backend tensor for
+ *
+ * @return Backend tensor handle
+ */
+ virtual std::unique_ptr<ITensorHandle> create_tensor(const Tensor &tensor) = 0;
+ /** Create a backend Sub-Tensor
+ *
+ * @param[in] parent Parent sub-tensor handle
+ * @param[in] shape Shape of the sub-tensor
+ * @param[in] coords Starting coordinates of the sub-tensor
+ *
+ * @return Backend sub-tensor handle
+ */
+ virtual std::unique_ptr<ITensorHandle> create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords) = 0;
+ /** Configure a backend Node
+ *
+ * @note This creates an appropriate configured backend function for the given node
+ *
+ * @param[in] node The node we want to configure
+ * @param[in] ctx Context to use
+ *
+ * @return Backend execution function
+ */
+ virtual std::unique_ptr<arm_compute::IFunction> configure_node(INode &node, GraphContext &ctx) = 0;
+ /** Validate a node
+ *
+ * @param[in] node The node we want to validate
+ *
+ * @return An error status
+ */
+ virtual Status validate_node(const INode &node) = 0;
+ /** Create a backend memory manager given its affinity
+ *
+ * @param[in] affinity Memory Manager affinity
+ *
+ * @return Memory manager
+ */
+ virtual std::shared_ptr<arm_compute::IMemoryManager> create_memory_manager(MemoryManagerAffinity affinity) = 0;
+};
+} // namespace backends
+} // namespace graph2
+} // namespace arm_compute
+#endif //__ARM_COMPUTE_GRAPH2_IDEVICEBACKEND_H__