IVGCVSW-1622 LSTM Neon support

Change-Id: I107d732760dd8662e2ee9a5e7ebb5baf61c45246

1 files changed, 51 insertions, 1 deletions

diff --git a/src/backends/neon/workloads/NeonLstmFloatWorkload.hpp b/src/backends/neon/workloads/NeonLstmFloatWorkload.hpp
index 4a5394f0a0..d21462bf83 100644
--- a/src/backends/neon/workloads/NeonLstmFloatWorkload.hpp
+++ b/src/backends/neon/workloads/NeonLstmFloatWorkload.hpp
@@ -5,7 +5,11 @@
 
 #pragma once
 
-#include <backends/neon/workloads/NeonWorkloadUtils.hpp>
+#include <backends/Workload.hpp>
+#include <backends/WorkloadData.hpp>
+
+#include "arm_compute/graph/Tensor.h"
+#include "arm_compute/runtime/NEON/functions/NELSTMLayer.h"
 
 namespace armnn
 {
@@ -15,6 +19,52 @@ class NeonLstmFloatWorkload : public FloatWorkload<LstmQueueDescriptor>
 public:
     NeonLstmFloatWorkload(const LstmQueueDescriptor& descriptor, const WorkloadInfo& info);
     virtual void Execute() const override;
+
+private:
+    mutable arm_compute::NELSTMLayer m_LstmLayer;
+
+    std::unique_ptr<arm_compute::Tensor> m_InputToInputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_InputToForgetWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_InputToCellWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_InputToOutputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_RecurrentToInputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_RecurrentToForgetWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_RecurrentToCellWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_RecurrentToOutputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_CellToInputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_CellToForgetWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_CellToOutputWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_InputGateBiasTensor;
+    std::unique_ptr<arm_compute::Tensor> m_ForgetGateBiasTensor;
+    std::unique_ptr<arm_compute::Tensor> m_CellBiasTensor;
+    std::unique_ptr<arm_compute::Tensor> m_OutputGateBiasTensor;
+    std::unique_ptr<arm_compute::Tensor> m_ProjectionWeightsTensor;
+    std::unique_ptr<arm_compute::Tensor> m_ProjectionBiasTensor;
+
+    std::unique_ptr<arm_compute::Tensor> m_ScratchBuffer;
+
+    void FreeUnusedTensors();
 };
 
+arm_compute::Status NeonLstmFloatWorkloadValidate(const TensorInfo& input, const TensorInfo& outputStateIn,
+                                                  const TensorInfo& cellStateIn, const TensorInfo& scratchBuffer,
+                                                  const TensorInfo& outputStateOut, const TensorInfo& cellStateOut,
+                                                  const TensorInfo& output, const LstmDescriptor &descriptor,
+                                                  const TensorInfo& inputToForgetWeights,
+                                                  const TensorInfo& inputToCellWeights,
+                                                  const TensorInfo& inputToOutputWeights,
+                                                  const TensorInfo& recurrentToForgetWeights,
+                                                  const TensorInfo& recurrentToCellWeights,
+                                                  const TensorInfo& recurrentToOutputWeights,
+                                                  const TensorInfo& forgetGateBias, const TensorInfo& cellBias,
+                                                  const TensorInfo& outputGateBias,
+                                                  const TensorInfo* inputToInputWeights,
+                                                  const TensorInfo* recurrentToInputWeights,
+                                                  const TensorInfo* cellToInputWeights,
+                                                  const TensorInfo* inputGateBias,
+                                                  const TensorInfo* projectionWeights,
+                                                  const TensorInfo* projectionBias,
+                                                  const TensorInfo* cellToForgetWeights,
+                                                  const TensorInfo* cellToOutputWeights);
+
 } //namespace armnn