1 files changed, 130 insertions, 0 deletions
diff --git a/src/gpu/cl/operators/ClScatter.cpp b/src/gpu/cl/operators/ClScatter.cpp
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index 0000000000..a11ecd7e6a
--- /dev/null
+++ b/src/gpu/cl/operators/ClScatter.cpp
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2024 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "src/gpu/cl/operators/ClScatter.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/runtime/CL/CLScheduler.h"
+
+#include "src/common/utils/Log.h"
+#include "src/gpu/cl/kernels/ClCopyKernel.h"
+#include "src/gpu/cl/kernels/ClFillKernel.h"
+#include "src/gpu/cl/kernels/ClScatterKernel.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+using namespace arm_compute::opencl::kernels;
+
+ClScatter::ClScatter()
+{
+}
+
+Status ClScatter::validate(const ITensorInfo *src,
+                           const ITensorInfo *updates,
+                           const ITensorInfo *indices,
+                           const ITensorInfo *dst,
+                           const ScatterInfo &info)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(updates, indices, dst);
+    if (src != nullptr)
+    {
+        // Check dst/src are same shape and datatype.
+        ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DIMENSIONS(src->tensor_shape(), dst->tensor_shape());
+        ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, updates, dst);
+        ARM_COMPUTE_RETURN_ON_ERROR(kernels::ClCopyKernel::validate(src, dst)); // Validate Copy kernel
+    }
+    if (src != dst)
+    {
+        ARM_COMPUTE_RETURN_ON_ERROR(kernels::ClFillKernel::validate(dst, PixelValue(0.0f))); // Validate Fill kernel.
+    }
+
+    return kernels::ClScatterKernel::validate(updates, indices, dst, info);
+}
+
+void ClScatter::configure(const CLCompileContext &compile_context,
+                          const ITensorInfo      *src,
+                          const ITensorInfo      *updates,
+                          const ITensorInfo      *indices,
+                          ITensorInfo            *dst,
+                          const ScatterInfo      &info)
+{
+    ARM_COMPUTE_ERROR_ON_NULLPTR(updates, indices, dst);
+    ARM_COMPUTE_LOG_PARAMS(src, indices, dst, info);
+
+    // Perform validation step
+    ARM_COMPUTE_ERROR_THROW_ON(validate(src, updates, indices, dst, info));
+    _fill_zero = info.zero_initialization;
+
+    // If necessary, create fill kernel to fill dst tensor.
+    if (_fill_zero)
+    {
+        auto f = std::make_unique<kernels::ClFillKernel>();
+        f->configure(compile_context, dst, PixelValue(0.0f));
+        _fill_kernel = std::move(f);
+    }
+    else if (src != dst) // Check whether copying is necessary
+    {
+        // Fill dst with src copy here.
+        auto j = std::make_unique<kernels::ClCopyKernel>();
+        j->configure(compile_context, src, dst);
+        _copy_kernel = std::move(j);
+        _run_copy    = true;
+    }
+
+    // Configure ClScatterKernel
+    auto k = std::make_unique<kernels::ClScatterKernel>();
+    k->set_target(CLScheduler::get().target());
+    k->configure(compile_context, updates, indices, dst, info);
+    _scatter_kernel = std::move(k);
+}
+
+void ClScatter::run(ITensorPack &tensors)
+{
+    // Get tensors.
+    auto src     = tensors.get_const_tensor(ACL_SRC_0);
+    auto updates = tensors.get_const_tensor(ACL_SRC_1);
+    auto indices = tensors.get_const_tensor(ACL_SRC_2);
+    auto dst     = tensors.get_tensor(ACL_DST);
+
+    if (_fill_zero)
+    {
+        // Fill destination tensor with 0 values if zero init.
+        ITensorPack fill_pack{{ACL_SRC, dst}};
+        CLScheduler::get().enqueue_op(*_fill_kernel, fill_pack, false);
+    }
+
+    if (_run_copy)
+    {
+        // copy src to dst before scatter op.
+        ITensorPack copy_pack{{ACL_SRC, src}, {ACL_DST, dst}};
+        CLScheduler::get().enqueue_op(*_copy_kernel, copy_pack, false);
+    }
+
+    ITensorPack scatter_pack{{ACL_SRC_0, updates}, {ACL_SRC_1, indices}, {ACL_DST, dst}};
+    CLScheduler::get().enqueue_op(*_scatter_kernel, scatter_pack, false);
+}
+
+} // namespace opencl
+} // namespace arm_compute