1 files changed, 122 insertions, 0 deletions
diff --git a/src/core/gpu/cl/kernels/ClFillKernel.cpp b/src/core/gpu/cl/kernels/ClFillKernel.cpp
new file mode 100644
index 0000000000..b194ee549b
--- /dev/null
+++ b/src/core/gpu/cl/kernels/ClFillKernel.cpp
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2018-2021 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/core/gpu/cl/kernels/ClFillKernel.h"
+
+#include "arm_compute/core/CL/CLHelpers.h"
+#include "arm_compute/core/CL/CLKernelLibrary.h"
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Utils.h"
+#include "arm_compute/core/Validate.h"
+#include "src/core/CL/CLValidate.h"
+#include "src/core/helpers/AutoConfiguration.h"
+#include "src/core/helpers/WindowHelpers.h"
+#include "support/Cast.h"
+#include "support/StringSupport.h"
+
+namespace arm_compute
+{
+namespace opencl
+{
+namespace kernels
+{
+void ClFillKernel::configure(ITensorInfo      *tensor,
+                             const PixelValue &constant_value,
+                             Window           *window)
+{
+    configure(CLKernelLibrary::get().get_compile_context(), tensor, constant_value, window);
+}
+
+void ClFillKernel::configure(const CLCompileContext &compile_context, ITensorInfo *tensor,
+                             const PixelValue &constant_value,
+                             Window           *window)
+{
+    ARM_COMPUTE_ERROR_ON_NULLPTR(tensor);
+    ARM_COMPUTE_ERROR_THROW_ON(validate(tensor, constant_value, window));
+
+    const DataType data_type  = tensor->data_type();
+    const int      vec_size_x = 16 / tensor->element_size();
+
+    // Create and update the window (if needed)
+    _full_window = calculate_max_window(*tensor);
+    Window win   = _full_window;
+    if(window != nullptr)
+    {
+        ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(win, *window);
+        win = *window;
+    }
+
+    const int  output_width_x = win.num_iterations(0);
+    const bool multi_access_x = output_width_x >= vec_size_x;
+    const bool remainder_x    = output_width_x % vec_size_x > 0;
+
+    if(multi_access_x)
+    {
+        win.set(Window::DimX, Window::Dimension(win.x().start(), ceil_to_multiple(win.x().end(), vec_size_x), vec_size_x));
+    }
+    ICLKernel::configure_internal(win);
+
+    // Create kernel
+    CLBuildOptions build_opts;
+    build_opts.add_option("-DDATA_TYPE=" + get_cl_type_from_data_type(data_type));
+    build_opts.add_option("-DCONSTANT_VALUE=" + string_from_pixel_value(constant_value, data_type));
+    build_opts.add_option_if(multi_access_x, "-DVEC_SIZE=" + support::cpp11::to_string(vec_size_x));
+    build_opts.add_option_if(multi_access_x && remainder_x, "-DLAST_ACCESSED_X=" + support::cpp11::to_string(std::max<int>(output_width_x - vec_size_x, 0)));
+    _kernel = create_kernel(compile_context, "memset", build_opts.options());
+}
+
+Status ClFillKernel::validate(const ITensorInfo *tensor, const PixelValue &constant_value, Window *window)
+{
+    ARM_COMPUTE_UNUSED(tensor);
+    ARM_COMPUTE_UNUSED(constant_value);
+    if(window != nullptr)
+    {
+        ARM_COMPUTE_RETURN_ERROR_ON(window->x().step() != 1);
+    }
+    return Status{};
+}
+
+void ClFillKernel::run_op(ITensorPack &tensors, const Window &window, cl::CommandQueue &queue)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window);
+
+    const auto tensor = utils::cast::polymorphic_downcast<const ICLTensor *>(tensors.get_const_tensor(TensorType::ACL_SRC));
+
+    // Collapse all the batches on the third
+    Window collapsed = window.collapse_if_possible(_full_window, Window::DimZ);
+    Window slice     = collapsed.first_slice_window_3D();
+
+    do
+    {
+        unsigned int idx = 0;
+        add_3D_tensor_argument(idx, tensor, slice);
+        enqueue(queue, *this, slice, lws_hint());
+    }
+    while(collapsed.slide_window_slice_3D(slice));
+}
+} // namespace kernels
+} // namespace opencl
+} // namespace arm_compute