IVGCVSW-8276 GpuFsa Op: Add MatMul

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Ib95eb0fd71106e684cb7652917b8de9f0ac73f9c
diff --git a/src/backends/gpuFsa/GpuFsaBackend.cpp b/src/backends/gpuFsa/GpuFsaBackend.cpp
index de0d019..72f8af7 100644
--- a/src/backends/gpuFsa/GpuFsaBackend.cpp
+++ b/src/backends/gpuFsa/GpuFsaBackend.cpp
@@ -20,6 +20,7 @@
 #include <arm_compute/core/CL/CLKernelLibrary.h>
 #include <arm_compute/runtime/CL/CLBufferAllocator.h>
 
+#include "layers/GpuFsaBatchMatMul.hpp"
 #include "layers/GpuFsaCast.hpp"
 #include "layers/GpuFsaConvolution2d.hpp"
 #include "layers/GpuFsaDepthwiseConvolution2d.hpp"
@@ -280,6 +281,14 @@
                 }
                 break;
             }
+            case (LayerType::BatchMatMul):
+            {
+                auto input0 = base.GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
+                auto input1 = base.GetInputSlot(1).GetConnectedOutputSlot()->GetTensorInfo();
+                auto desc = PolymorphicDowncast<const BatchMatMulDescriptor*>(&base.GetParameters());
+                GpuFsaBatchMatMulCreateOp(preCompiledBlobPtr, input0, input1, *desc);
+                break;
+            }
             case (LayerType::DepthwiseConvolution2d):
             {
                 auto input = base.GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
diff --git a/src/backends/gpuFsa/GpuFsaLayerSupport.cpp b/src/backends/gpuFsa/GpuFsaLayerSupport.cpp
index 1ee80c9..85fb03a 100644
--- a/src/backends/gpuFsa/GpuFsaLayerSupport.cpp
+++ b/src/backends/gpuFsa/GpuFsaLayerSupport.cpp
@@ -10,6 +10,7 @@
 #include <armnn/utility/PolymorphicDowncast.hpp>
 
 #if defined(ARMCOMPUTEGPUFSA_ENABLED)
+#include "layers/GpuFsaBatchMatMul.hpp"
 #include "layers/GpuFsaCast.hpp"
 #include "layers/GpuFsaConvolution2d.hpp"
 #include "layers/GpuFsaDepthwiseConvolution2d.hpp"
@@ -76,6 +77,22 @@
 
     switch (type)
     {
+        case LayerType::BatchMatMul:
+        {
+            if (infos.size() != 3)
+            {
+                throw InvalidArgumentException("Invalid number of BatchMatMul TensorInfos. "
+                                               "TensorInfos should be of format: {input0, input1 output}.");
+            }
+
+            auto desc = PolymorphicDowncast<const BatchMatMulDescriptor*>(&descriptor);
+
+            FORWARD_LAYER_VALIDATE_FUNC(GpuFsaBatchMatMulValidate,
+                                        reasonIfUnsupported,
+                                        infos[0],
+                                        infos[1],
+                                        *desc);
+        }
         case LayerType::Cast:
         {
             if (infos.size() != 2)
diff --git a/src/backends/gpuFsa/layers/CMakeLists.txt b/src/backends/gpuFsa/layers/CMakeLists.txt
index 3fe4bdc..37d52e4 100644
--- a/src/backends/gpuFsa/layers/CMakeLists.txt
+++ b/src/backends/gpuFsa/layers/CMakeLists.txt
@@ -4,6 +4,8 @@
 #
 
 list(APPEND armnnGpuFsaBackendLayers_sources
+        GpuFsaBatchMatMul.cpp
+        GpuFsaBatchMatMul.hpp
         GpuFsaCast.cpp
         GpuFsaCast.hpp
         GpuFsaConvolution2d.cpp
diff --git a/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.cpp b/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.cpp
new file mode 100644
index 0000000..99c8999
--- /dev/null
+++ b/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.cpp
@@ -0,0 +1,106 @@
+//
+// Copyright © 2024 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "GpuFsaBatchMatMul.hpp"
+#include "UtilsGpuFsa.hpp"
+
+#include <aclCommon/ArmComputeTensorUtils.hpp>
+
+#include <arm_compute/dynamic_fusion/sketch/gpu/GpuWorkloadContext.h>
+#include <arm_compute/dynamic_fusion/sketch/gpu/GpuWorkloadSketch.h>
+#include <arm_compute/dynamic_fusion/sketch/gpu/operators/GpuMatMul.h>
+#include <arm_compute/dynamic_fusion/sketch/gpu/operators/GpuOutput.h>
+
+using namespace arm_compute::experimental::dynamic_fusion;
+using namespace armnn::armcomputetensorutils;
+
+namespace armnn
+{
+
+arm_compute::Status GpuFsaBatchMatMulValidate(const TensorInfo& input0,
+                                              const TensorInfo& input1,
+                                              const BatchMatMulDescriptor& descriptor)
+{
+    // Create a new workload sketch, for validation purposes
+    auto compileCtx         = arm_compute::CLKernelLibrary::get().get_compile_context();
+    auto workloadContext    = GpuWorkloadContext(&compileCtx);
+    GpuWorkloadSketch sketch{ &workloadContext };
+
+    arm_compute::TensorInfo aclInput0Info = BuildArmComputeTensorInfo(input0, input0.GetNumDimensions());
+    arm_compute::TensorInfo aclInput1Info = BuildArmComputeTensorInfo(input1, input1.GetNumDimensions());
+
+    aclInput0Info.set_are_values_constant(input0.IsConstant());
+    aclInput1Info.set_are_values_constant(input1.IsConstant());
+
+    arm_compute::ITensorInfo*  inputInfo0 = workloadContext.create_tensor_info(aclInput0Info);
+    arm_compute::ITensorInfo*  inputInfo1 = workloadContext.create_tensor_info(aclInput1Info);
+
+    MatMulAttributes matMulAttributes{};
+    matMulAttributes.adj_lhs(descriptor.m_TransposeX);
+    matMulAttributes.adj_rhs(descriptor.m_TransposeY);
+    GpuMatMulSettings matmulSettings{};
+    matmulSettings.m0(1);
+    matmulSettings.n0(1);
+    matmulSettings.k0(1);
+
+    return GpuMatMul::validate_op(sketch, inputInfo0, inputInfo1, matMulAttributes, matmulSettings);
+}
+
+void GpuFsaBatchMatMulCreateOp(GpuFsaPreCompiledBlob* blob,
+                               const TensorInfo& input0,
+                               const TensorInfo& input1,
+                               const BatchMatMulDescriptor& descriptor)
+{
+    GpuWorkloadSketch* sketch           = blob->sketch.get();
+    GpuWorkloadContext* workloadContext = blob->workloadContext.get();
+    std::vector<arm_compute::ITensorInfo*> inputTensorInfos  = {};
+    std::vector<arm_compute::ITensorInfo*> outputTensorInfos = {};
+
+    arm_compute::TensorInfo aclInput0Info = BuildArmComputeTensorInfo(input0, input0.GetNumDimensions());
+    arm_compute::TensorInfo aclInput1Info = BuildArmComputeTensorInfo(input1, input1.GetNumDimensions());
+
+    aclInput0Info.set_are_values_constant(input0.IsConstant());
+    aclInput1Info.set_are_values_constant(input1.IsConstant());
+
+    inputTensorInfos.emplace_back(workloadContext->create_tensor_info(aclInput0Info));
+    inputTensorInfos.emplace_back(workloadContext->create_tensor_info(aclInput1Info));
+
+    MatMulAttributes matMulAttributes{};
+    matMulAttributes.adj_lhs(descriptor.m_TransposeX);
+    matMulAttributes.adj_rhs(descriptor.m_TransposeY);
+    GpuMatMulSettings matmulSettings{};
+    matmulSettings.m0(1);
+    matmulSettings.n0(1);
+    matmulSettings.k0(1);
+
+    // Validate operator, check status and update reasonIfUnsupported
+    arm_compute::Status aclStatus = GpuMatMul::validate_op(*sketch,
+                                                           inputTensorInfos[0],
+                                                           inputTensorInfos[1],
+                                                           matMulAttributes,
+                                                           matmulSettings);
+
+    const bool supported = aclStatus.error_code() == arm_compute::ErrorCode::OK;
+    if (!supported)
+    {
+        throw BackendCapabilityException("\"GpuFsa\" backend failed during elementwise binary add validation");
+    }
+
+    arm_compute::ITensorInfo* addOutputInfo = GpuMatMul::create_op(*sketch,
+                                                                   inputTensorInfos[0],
+                                                                   inputTensorInfos[1],
+                                                                   matMulAttributes,
+                                                                   matmulSettings);
+
+    // Temporary fix until fusing attempt is make for GpuFsa backend and Output layer workload is created.
+    outputTensorInfos.emplace_back(workloadContext->create_tensor_info());
+    GpuOutput::create_op(*sketch, addOutputInfo, outputTensorInfos[0]);
+
+    // Store the TensorInfos within the blob as unique_ptrs to be used later
+    blob->inputTensorInfos  = std::make_unique<std::vector<arm_compute::ITensorInfo*>>(inputTensorInfos);
+    blob->outputTensorInfos = std::make_unique<std::vector<arm_compute::ITensorInfo*>>(outputTensorInfos);
+}
+
+} // namespace armnn
\ No newline at end of file
diff --git a/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.hpp b/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.hpp
new file mode 100644
index 0000000..f7af3a7
--- /dev/null
+++ b/src/backends/gpuFsa/layers/GpuFsaBatchMatMul.hpp
@@ -0,0 +1,22 @@
+//
+// Copyright © 2024 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <armnn/Descriptors.hpp>
+
+#include <gpuFsa/GpuFsaBackend.hpp>
+
+namespace armnn
+{
+arm_compute::Status GpuFsaBatchMatMulValidate(const TensorInfo& input0,
+                                              const TensorInfo& input1,
+                                              const BatchMatMulDescriptor& descriptor);
+
+void GpuFsaBatchMatMulCreateOp(GpuFsaPreCompiledBlob* blob,
+                               const TensorInfo& input0,
+                               const TensorInfo& input1,
+                               const BatchMatMulDescriptor& descriptor);
+
+} // namespace armnn
\ No newline at end of file
diff --git a/src/backends/gpuFsa/test/GpuFsaEndToEndTests.cpp b/src/backends/gpuFsa/test/GpuFsaEndToEndTests.cpp
index a2708c0..7503c46 100644
--- a/src/backends/gpuFsa/test/GpuFsaEndToEndTests.cpp
+++ b/src/backends/gpuFsa/test/GpuFsaEndToEndTests.cpp
@@ -5,9 +5,9 @@
 
 #include "backendsCommon/test/EndToEndTestImpl.hpp"
 
+#include "backendsCommon/test/BatchMatMulEndToEndTestImpl.hpp"
 #include "backendsCommon/test/Convolution2dEndToEndTestImpl.hpp"
 #include "backendsCommon/test/layerTests/CastTestImpl.hpp"
-
 #include "backendsCommon/test/DepthwiseConvolution2dEndToEndTests.hpp"
 #include "backendsCommon/test/ElementwiseBinaryEndToEndTestImpl.hpp"
 #include "backendsCommon/test/Pooling2dEndToEndTestImpl.hpp"
@@ -20,6 +20,13 @@
 
 std::vector<BackendId> gpuFsaDefaultBackends = {"GpuFsa"};
 
+// BatchMatMul
+TEST_CASE("RefBatchMatMulEndToEndFloat32Test")
+{
+    BatchMatMulEndToEnd<armnn::DataType::Float32>(gpuFsaDefaultBackends);
+}
+
+// Cast
 TEST_CASE("GpuFsaCastEndtoEndTestFloat32ToFloat16")
 {
     using namespace half_float::literal;
diff --git a/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp b/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
index 34af190..b6f7f32 100644
--- a/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
+++ b/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
@@ -17,6 +17,25 @@
 TEST_SUITE("GpuFsaLayerSupport")
 {
 
+TEST_CASE("IsLayerSupportedGpuFsaBatchMatMul")
+{
+    TensorInfo input0Info({ 2, 2 }, DataType::Float32);
+    TensorInfo input1Info({ 2, 2 }, DataType::Float32);
+    TensorInfo outputInfo({ 2, 2 }, DataType::Float32);
+
+    BatchMatMulDescriptor desc{};
+
+    GpuFsaLayerSupport supportChecker;
+    std::string reasonIfNotSupported;
+    auto supported = supportChecker.IsLayerSupported(LayerType::BatchMatMul,
+                                                     {input0Info, input1Info, outputInfo},
+                                                     desc,
+                                                     EmptyOptional(),
+                                                     EmptyOptional(),
+                                                     reasonIfNotSupported);
+    CHECK(supported);
+}
+
 TEST_CASE("IsLayerSupportedCast")
 {
     armnn::TensorInfo inputTensorInfo({1, 3, 2, 3}, armnn::DataType::Float32);
diff --git a/src/backends/gpuFsa/test/GpuFsaOptimizedNetworkTests.cpp b/src/backends/gpuFsa/test/GpuFsaOptimizedNetworkTests.cpp
index 6ddb942..1e5c976 100644
--- a/src/backends/gpuFsa/test/GpuFsaOptimizedNetworkTests.cpp
+++ b/src/backends/gpuFsa/test/GpuFsaOptimizedNetworkTests.cpp
@@ -15,6 +15,52 @@
 TEST_SUITE("GpuFsaOptimizedNetwork")
 {
 
+TEST_CASE("BatchMatMulSupportedOptimizedNetwork")
+{
+    using namespace armnn;
+
+    const float qScale = 1.0f;
+    const int32_t qOffset = 0;
+
+    const TensorShape& input1Shape  = { 2, 2 };
+    const TensorShape& input2Shape  = { 2, 2 };
+    const TensorShape& outputShape  = { 2, 2 };
+
+    TensorInfo input1TensorInfo(input1Shape, DataType::Float32, qScale, qOffset, true);
+    TensorInfo input2TensorInfo(input2Shape, DataType::Float32, qScale, qOffset, true);
+    TensorInfo outputTensorInfo(outputShape, DataType::Float32, qScale, qOffset);
+
+    IRuntime::CreationOptions options;
+    IRuntimePtr runtime(IRuntime::Create(options));
+    INetworkPtr network(INetwork::Create());
+
+    BatchMatMulDescriptor desc{};
+
+    IConnectableLayer* input1 = network->AddInputLayer(0, "input0");
+    IConnectableLayer* input2 = network->AddInputLayer(1, "input1");
+    IConnectableLayer* batchMatMulLayer = network->AddBatchMatMulLayer(desc, "batchMatMul");
+    IConnectableLayer* output = network->AddOutputLayer(2, "output");
+
+    Connect(input1, batchMatMulLayer, input1TensorInfo, 0, 0);
+    Connect(input2, batchMatMulLayer, input2TensorInfo, 0, 1);
+    Connect(batchMatMulLayer, output, outputTensorInfo, 0, 0);
+
+    std::vector<BackendId> backends = { "GpuFsa" };
+
+    OptimizerOptionsOpaque optimizedOptions;
+    IOptimizedNetworkPtr optNet = Optimize(*network, backends, runtime->GetDeviceSpec(), optimizedOptions);
+    CHECK(optNet);
+
+    Graph& graph = GetGraphForTesting(optNet.get());
+
+    // Check graph layer sequence to ensure that the network has been replaced with a PreCompiledLayer
+    CHECK(CheckSequence(graph.cbegin(), graph.cend(),
+                        &IsLayerOfType<InputLayer>,
+                        &IsLayerOfType<InputLayer>,
+                        &IsLayerOfType<PreCompiledLayer>,
+                        &IsLayerOfType<OutputLayer>));
+}
+
 TEST_CASE("CastSupportedOptimizedNetwork")
 {
     using namespace armnn;