IVGCVSW-6620 Update the async api to use ExecutionData

* ExecutionData holds a void* which can be assigned to data required
  for execution in a backend. WorkingMemDescriptors are used in the Ref
  backend which hold TensorHandles for inputs and outputs.
* Updated ExecuteAsync functions to take ExecutionData.
* Added CreateExecutionData and UpdateExectutionData to IBackendInternal.
* Streamlined experimental IWorkingMemHandle API by removing map related
  function and unused m_workingMemDescriptorMap from WorkingMemHandle.

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: I54b0aab12872011743a141eb42dae200227769af

1 files changed, 8 insertions, 4 deletions

diff --git a/include/armnn/IWorkingMemHandle.hpp b/include/armnn/IWorkingMemHandle.hpp
index bbc4913c59..62f71118eb 100644
--- a/include/armnn/IWorkingMemHandle.hpp
+++ b/include/armnn/IWorkingMemHandle.hpp
@@ -1,5 +1,5 @@
 //
-// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
 // SPDX-License-Identifier: MIT
 //
 
@@ -13,6 +13,8 @@ using NetworkId = int;
 namespace experimental
 {
 
+struct ExecutionData;
+
 struct WorkingMemDescriptor;
 
 class IWorkingMemHandle
@@ -33,12 +35,14 @@ public:
     /// IsAllocated returns true if the backing memory is currently allocated.
     virtual bool IsAllocated() = 0;
 
-    /// Get the WorkingMemDescriptor for a Layer.
-    virtual WorkingMemDescriptor& GetWorkingMemDescriptor(LayerGuid id) = 0;
-
     /// Get the WorkingMemDescriptor at an index. The WorkingMemDescriptors are stored in the same order as
     /// the Workloads in a topologically sorted graph.
     virtual WorkingMemDescriptor& GetWorkingMemDescriptorAt(unsigned int id) = 0;
+
+    /// Get the ExecutionData at an index.
+    /// The ExecutionData is paired with a BackendId to be able to call backend specific functions upon it.
+    /// The ExecutionData are stored in the same order as the Workloads in a topologically sorted graph.
+    virtual std::pair<BackendId, ExecutionData>& GetExecutionDataAt(unsigned int id) = 0;
 };
 
 } // end experimental namespace