IVGCVSW-8157 - Rebase existing GpuFsa patches to 23.11

Squashed commit of the following:

IVGCVSW-7159 Add GpuFsa backend skeleton
IVGCVSW-7380 Update the GpuFsa Skeleton to build and load ACL
IVGCVSW-7381 Add IsLayerSupported implementation to GpuFsa backend
IVGCVSW-7382 Implementation of Conv2d within GpuFsa

Signed-off-by: James Conroy <james.conroy@arm.com>
Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Signed-off-by: David Monahan <david.monahan@arm.com>
Change-Id: Id23d9ee598535de7b38a99ca223cdf0ad2102cef

1 files changed, 111 insertions, 0 deletions

diff --git a/src/backends/gpuFsa/GpuFsaLayerSupport.cpp b/src/backends/gpuFsa/GpuFsaLayerSupport.cpp
new file mode 100644
index 0000000000..063af2732e
--- /dev/null
+++ b/src/backends/gpuFsa/GpuFsaLayerSupport.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright © 2022-2023 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "GpuFsaLayerSupport.hpp"
+
+#include <armnn/Types.hpp>
+#include <armnn/utility/IgnoreUnused.hpp>
+#include <armnn/utility/PolymorphicDowncast.hpp>
+
+#if defined(ARMCOMPUTEGPUFSA_ENABLED)
+#include "layerValidators/GpuFsaConvolution2dValidate.hpp"
+#endif
+
+#include <vector>
+
+namespace armnn
+{
+
+template<typename ... Args>
+bool IsGpuFsaBackendSupported(Optional<std::string&> reasonIfUnsupported, Args... args)
+{
+    IgnoreUnused(reasonIfUnsupported, (args)...);
+#if defined(ARMCOMPUTEGPUFSA_ENABLED)
+    return true;
+#else
+    if (reasonIfUnsupported)
+    {
+        reasonIfUnsupported.value() = "The armnn library has been built without CL support";
+    }
+    return false;
+#endif
+}
+
+#if defined(ARMCOMPUTEGPUFSA_ENABLED)
+#define FORWARD_GPUFSA_LAYER_SUPPORT_FUNC(expr) (expr)
+#else
+#define FORWARD_GPUFSA_LAYER_SUPPORT_FUNC(expr) IsGpuFsaBackendSupported(reasonIfUnsupported)
+#endif
+
+#if defined(ARMCOMPUTEGPUFSA_ENABLED)
+template<class FuncType, class... Args>
+inline bool CheckIsLayerSupported(FuncType&& func, Optional<std::string&> reasonIfUnsupported, Args&&... args)
+{
+    arm_compute::Status aclStatus = func(std::forward<Args>(args)...);
+    const bool supported = (aclStatus.error_code() == arm_compute::ErrorCode::OK);
+    if (!supported && reasonIfUnsupported)
+    {
+        reasonIfUnsupported.value() = aclStatus.error_description();
+    }
+    return supported;
+}
+
+#define FORWARD_LAYER_VALIDATE_FUNC(func, reasonIfUnsupported, ...) \
+    return CheckIsLayerSupported(func, reasonIfUnsupported, __VA_ARGS__);
+#else
+#define FORWARD_LAYER_VALIDATE_FUNC(func, reasonIfUnsupported, ...) \
+    return IsGpuFsaBackendSupported(reasonIfUnsupported, __VA_ARGS__);
+#endif
+
+bool GpuFsaLayerSupport::IsLayerSupported(const LayerType& type,
+                                          const std::vector<TensorInfo>& infos,
+                                          const BaseDescriptor& descriptor,
+                                          const Optional<LstmInputParamsInfo>& lstmParamsInfo,
+                                          const Optional<QuantizedLstmInputParamsInfo>& quantizedLstmInputParamsInfo,
+                                          Optional<std::string&> reasonIfUnsupported) const
+{
+    IgnoreUnused(lstmParamsInfo);
+    IgnoreUnused(quantizedLstmInputParamsInfo);
+
+    switch (type) {
+        case LayerType::Convolution2d:
+        {
+            if (infos.size() != 4)
+            {
+                throw InvalidArgumentException("Invalid number of Convolution2d TensorInfos. "
+                                               "TensorInfos should be of format: {input, output, weights, biases}.");
+            }
+
+            auto desc = *(PolymorphicDowncast<const Convolution2dDescriptor*>(&descriptor));
+            if (infos[3] == TensorInfo())
+            {
+                FORWARD_LAYER_VALIDATE_FUNC(GpuFsaConvolution2dValidate,
+                                            reasonIfUnsupported,
+                                            infos[0],
+                                            desc,
+                                            infos[2],
+                                            EmptyOptional());
+            }
+            else
+            {
+                FORWARD_LAYER_VALIDATE_FUNC(GpuFsaConvolution2dValidate,
+                                            reasonIfUnsupported,
+                                            infos[0],
+                                            desc,
+                                            infos[2],
+                                            infos[3]);
+            }
+        }
+        case LayerType::Constant:
+        case LayerType::Input:
+        case LayerType::Output:
+            return IsGpuFsaBackendSupported(reasonIfUnsupported, infos[0]);
+        default:
+            // Layers not supported in the GpuFsa backend.
+            return false;
+    }
+}
+
+} // namespace armnn
\ No newline at end of file