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-/*
- * Copyright (c) 2018-2019 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.
- */
-#ifndef __ARM_COMPUTE_NEGEMMINTERLEAVEDTRANSFORMAWRAPPER_H__
-#define __ARM_COMPUTE_NEGEMMINTERLEAVEDTRANSFORMAWRAPPER_H__
-
-#include "arm_compute/core/CPP/CPPTypes.h"
-#include "arm_compute/core/Helpers.h"
-#include "arm_compute/core/ITensor.h"
-#include "arm_compute/core/NEON/kernels/assembly/INEGEMMWrapperKernel.h"
-#include "arm_compute/core/Utils.h"
-#include "arm_compute/core/Validate.h"
-#include "arm_compute/core/Window.h"
-#include "arm_compute/core/WindowIterator.h"
-
-namespace arm_compute
-{
-class ITensor;
-
-/** Unit of work for @ref NEGEMMInterleavedTransformAWrapper to process */
-struct TransformAWorkload
-{
- /** Constructor
- *
- * @param[in] k0 First value to process along the K dimension.
- * @param[in] kmax Last value to process along the K dimension.
- * @param[in] multi Multi index.
- */
- TransformAWorkload(unsigned int k0, unsigned int kmax, unsigned int multi)
- : _k0(k0), _kmax(kmax), _multi(multi)
- {
- }
- unsigned int _k0; /**< First value to process along the K dimension. */
- unsigned int _kmax; /**< Last value to process along the K dimension. */
- unsigned int _multi; /**< Multi index. */
-};
-
-/** Equivalent to arm_gemm::GemmInterleaved's Transform<strategy::A_interleave, strategy::A_block but using Compute Library types.
- *
- * Note: Each workload converts a different slice of a and writes it to transformed_a (Which can store only one slice at the time), therefore the workloads' execution should be interleaved with other workloads that make use of their result.
- */
-class NEGEMMInterleavedTransformAWrapper
-{
-public:
- /** Transform the block at the given coordinates
- *
- * @param[in] wl Workload to process.
- * @param[in] info Information about the current thread.
- * @param[in] batch_window Window containing iteration information for the M and batch dimensions.
- * @param[in] start_offset Offset relative to the beginning of batch_window to start the processing from.
- * @param[in] end_offset Offset relative to the beginning of batch_window to stop the processing.
- */
- virtual void transform(const TransformAWorkload &wl, const ThreadInfo &info, const Window &batch_window, const Coordinates &start_offset, const Coordinates &end_offset) = 0;
- /** Generate an array of workloads
- *
- * @param[out] workloads Container to store the generated workloads.
- */
- virtual void create_workloads(std::vector<TransformAWorkload> &workloads) = 0;
- /** Default destructor */
- virtual ~NEGEMMInterleavedTransformAWrapper() = default;
-};
-
-/** Type specialisations of @ref NEGEMMInterleavedTransformAWrapper */
-template <typename strategy>
-class NEGEMMInterleavedTransformAWrapperTemplate : public NEGEMMInterleavedTransformAWrapper
-{
-public:
- /** Configure the reshape A routine.
- *
- * @param[in] a Input matrix A.
- * @param[out] transformed_a Reshaped matrix A.
- * @param[in] transpose_a Also transpose A ?
- * @param[in] reinterpret_a_as_3d Re-interpret as 3D ?
- * @param[in] block_walker Window representing the layout of the matrix's blocks
- * @param[in] params M, N, K sizes.
- */
- void configure(const ITensor *a, ITensor *transformed_a, bool transpose_a, bool reinterpret_a_as_3d, const Window &block_walker, const INEGEMMWrapperKernel::Params &params)
- {
- _a = a;
- _transformed_a = transformed_a;
- _transpose_a = transpose_a;
- _reinterpret_a_as_3d = reinterpret_a_as_3d;
- _Ksize = params.K;
- _Msize = params.M;
- _k_multi_window = block_walker.shift_dimensions(1); // block_walker contains (M,K,Multi) --> shift by 1 to get rid of the "M" dimension
- }
-
- // Inherited methods overridden:
- void transform(const TransformAWorkload &wl, const ThreadInfo &info, const Window &batch_window, const Coordinates &start_offset, const Coordinates &end_offset) override
- {
- strategy strat(info.cpu_info);
- TensorAccessor<typename strategy::operand_type> a(*_a);
- TensorAccessor<typename strategy::operand_type> transformed_a(*_transformed_a);
-
- // Handle 3d input re-interpretation
- if(_reinterpret_a_as_3d)
- {
- Strides a_strides_as_3d = _a->info()->strides_in_bytes();
- a_strides_as_3d.remove(Window::DimZ);
- a.set_strides(a_strides_as_3d);
- }
-
- unsigned int last_m = 0;
- //TODO: Create a new iterate_1D( DimY);
- int last_y = -1;
- auto window_iterator = arm_compute::create_window_iterator(batch_window, start_offset, end_offset, [&](const Coordinates & id)
- {
- if(id.y() != last_y)
- {
- last_y = id.y();
- unsigned int batch = id.y();
- unsigned int first_m = id.x();
-
- if(first_m >= last_m)
- return;
-
- strat.transforms.PrepareA(transformed_a(0, first_m, batch),
- a(0, 0, batch, wl._multi),
- a.stride(1), first_m, last_m, wl._k0, wl._kmax, _transpose_a);
- }
- });
- auto on_new_row_size = [&](unsigned int, unsigned int end)
- {
- last_m = std::min(end, _Msize);
- };
- window_iterator.iterate_2D(on_new_row_size);
- }
- void create_workloads(std::vector<TransformAWorkload> &workloads) override
- {
- execute_window_loop(_k_multi_window, [&](const Coordinates & id)
- {
- const unsigned int k0 = id.x();
- const unsigned int multi = id.y();
- const unsigned int kmax = std::min(k0 + _k_multi_window.x().step(), _Ksize);
-
- workloads.push_back(TransformAWorkload(k0, kmax, multi));
- });
- }
-
-private:
- const ITensor *_a
- {
- nullptr
- };
- ITensor *_transformed_a{ nullptr };
- unsigned int _Msize{ 0 };
- unsigned int _Ksize{ 0 };
- bool _transpose_a{ false };
- bool _reinterpret_a_as_3d{ false };
- Window _k_multi_window{};
-};
-} // namespace arm_compute
-#endif /* __ARM_COMPUTE_NEGEMMINTERLEAVEDTRANSFORMAWRAPPER_H__ */