IVGCVSW-7159 Implement simple TOSA Reference Backend skeleton

 * Added files based on RefBackend
 * Added PreCompiled Workload skeleton
 * Increment ABI version of armnnTestUtils for CreateInput which had
   been left as pure virtual, added base implementation for it.
 * Add IsTosaLayerSupported() for Addition

Change-Id: I4c963adf3f50593d17ecdf21554502a64ad3bd76

5 files changed, 136 insertions, 0 deletions

diff --git a/src/backends/tosaReference/workloads/CMakeLists.txt b/src/backends/tosaReference/workloads/CMakeLists.txt
new file mode 100644
index 0000000000..7b60c841cf
--- /dev/null
+++ b/src/backends/tosaReference/workloads/CMakeLists.txt
@@ -0,0 +1,18 @@
+#
+# Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+# SPDX-License-Identifier: MIT
+#
+
+list(APPEND armnnTosaRefBackendWorkloads_sources
+        TosaRefBaseWorkload.hpp
+        TosaRefPreCompiledWorkload.cpp
+        TosaRefPreCompiledWorkload.hpp
+)
+
+add_library(armnnTosaRefBackendWorkloads OBJECT ${armnnTosaRefBackendWorkloads_sources})
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/src/armnn)
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/src/armnnUtils)
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/src/backends)
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/src/profiling)
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/profiling/common/include)
+target_include_directories(armnnTosaRefBackendWorkloads PRIVATE ${PROJECT_SOURCE_DIR}/profiling/client/include)
diff --git a/src/backends/tosaReference/workloads/TosaRefBaseWorkload.hpp b/src/backends/tosaReference/workloads/TosaRefBaseWorkload.hpp
new file mode 100644
index 0000000000..df82abb02e
--- /dev/null
+++ b/src/backends/tosaReference/workloads/TosaRefBaseWorkload.hpp
@@ -0,0 +1,39 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <armnn/backends/Workload.hpp>
+
+namespace armnn
+{
+
+template <typename QueueDescriptor>
+class TosaRefBaseWorkload : public BaseWorkload<QueueDescriptor>
+{
+public:
+    TosaRefBaseWorkload(const QueueDescriptor& descriptor, const WorkloadInfo& info)
+            : BaseWorkload<QueueDescriptor>(descriptor, info)
+    {}
+
+    virtual bool SupportsTensorHandleReplacement()  const override
+    {
+        return true;
+    }
+
+    // Replace input tensor handle with the given TensorHandle
+    void ReplaceInputTensorHandle(ITensorHandle* tensorHandle, unsigned int slot) override
+    {
+        this->m_Data.m_Inputs[slot] = tensorHandle;
+    }
+
+    // Replace output tensor handle with the given TensorHandle
+    void ReplaceOutputTensorHandle(ITensorHandle* tensorHandle, unsigned int slot) override
+    {
+        this->m_Data.m_Outputs[slot] = tensorHandle;
+    }
+};
+
+} //namespace armnn
\ No newline at end of file
diff --git a/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.cpp b/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.cpp
new file mode 100644
index 0000000000..c4af4d40b1
--- /dev/null
+++ b/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.cpp
@@ -0,0 +1,28 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "TosaRefPreCompiledWorkload.hpp"
+
+namespace armnn
+{
+
+TosaRefPreCompiledWorkload::TosaRefPreCompiledWorkload(const PreCompiledQueueDescriptor& descriptor,
+                                                       const WorkloadInfo& info)
+    : BaseWorkload<PreCompiledQueueDescriptor>(descriptor, info)
+{
+    // Do nothing for now
+}
+
+void TosaRefPreCompiledWorkload::Execute() const
+{
+    // Do nothing for now
+}
+
+bool TosaRefPreCompiledWorkloadValidate(std::string*)
+{
+    return true;
+}
+
+}    //namespace armnn
diff --git a/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.hpp b/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.hpp
new file mode 100644
index 0000000000..30972693de
--- /dev/null
+++ b/src/backends/tosaReference/workloads/TosaRefPreCompiledWorkload.hpp
@@ -0,0 +1,43 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "armnn/backends/Workload.hpp"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace armnn
+{
+
+bool TosaRefPreCompiledWorkloadValidate(std::string* reasonIfUnsupported);
+
+class TosaRefPreCompiledWorkload : public BaseWorkload<PreCompiledQueueDescriptor>
+{
+public:
+    TosaRefPreCompiledWorkload(const PreCompiledQueueDescriptor& descriptor,
+                               const WorkloadInfo& info);
+    void Execute() const override;
+
+private:
+    bool SupportsTensorHandleReplacement() const override
+    {
+        return true;
+    }
+
+    void ReplaceInputTensorHandle(ITensorHandle* tensorHandle, unsigned int slot) override
+    {
+        this->m_Data.m_Inputs[slot] = tensorHandle;
+    }
+
+    void ReplaceOutputTensorHandle(ITensorHandle* tensorHandle, unsigned int slot) override
+    {
+        this->m_Data.m_Outputs[slot] = tensorHandle;
+    }
+};
+
+}    //namespace armnn
diff --git a/src/backends/tosaReference/workloads/TosaRefWorkloads.hpp b/src/backends/tosaReference/workloads/TosaRefWorkloads.hpp
new file mode 100644
index 0000000000..e7b439926b
--- /dev/null
+++ b/src/backends/tosaReference/workloads/TosaRefWorkloads.hpp
@@ -0,0 +1,8 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "TosaRefPreCompiledWorkload.hpp"