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/*
* Copyright (c) 2017-2023 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_CPU_RESHAPE_KERNEL_H
#define ARM_COMPUTE_CPU_RESHAPE_KERNEL_H
#include "src/core/common/Macros.h"
#include "src/cpu/ICpuKernel.h"
namespace arm_compute
{
namespace cpu
{
namespace kernels
{
/** Interface for the kernel to perform tensor reshaping */
class CpuReshapeKernel : public ICpuKernel<CpuReshapeKernel>
{
public:
CpuReshapeKernel() = default;
ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuReshapeKernel);
/** Configure kernel for a given list of arguments
*
* @param[in] src Source tensor info. Data type supported: All
* @param[out] dst Destination tensor info. Data type supported: Same as @p input
*/
void configure(const ITensorInfo *src, ITensorInfo *dst);
/** Static function to check if given info will lead to a valid configuration
*
* Similar to @ref CpuReshapeKernel::configure()
*
* @return a status
*/
static Status validate(const ITensorInfo *src, const ITensorInfo *dst);
// Inherited methods overridden:
void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override;
const char *name() const override;
/** Prepare the reshape kernel for execution (Only executed once) by calculating max or squashed window and selecting the _reshape_tensor_fn based on the presence of holes
*
* @param[in] tensors Pack of input and output tensors
*
*/
void prepare(ITensorPack &tensors);
/** Return minimum workload size of the relevant kernel
*
* @param[in] platform The CPU platform used to create the context.
* @param[in] thread_count Number of threads in the execution.
*
* @return[out] small_network_mws Minimum workload size for requsted configuration.
*/
size_t get_mws(const CPUInfo &platform, size_t thread_count) const override;
/** Get the preferred dimension in which the scheduler splits the work into multiple jobs.
*
* @return The split dimension.
*/
size_t get_split_dimension() const
{
return _split_dimension;
}
private:
size_t _split_dimension{Window::DimY};
std::function<void(const Window &window, const ITensor *src, ITensor *dst)> _reshape_tensor_fn{};
};
} // namespace kernels
} // namespace cpu
} // namespace arm_compute
#endif /* ARM_COMPUTE_CPU_RESHAPE_KERNEL_H */
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