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/*
* Copyright (c) 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 CKW_SRC_CL_HELPERS_ICLMEMORYOPHELPER_H
#define CKW_SRC_CL_HELPERS_ICLMEMORYOPHELPER_H
#include "ckw/TensorSampler.h"
#include "src/Tensor3dMapper.h"
#include "src/TileView.h"
#include <cstdint>
#include <memory>
#include <string>
namespace ckw
{
// Forward Declarations
class CLTile;
class CLKernelWriter;
class ITensor;
class TensorSampler;
enum class MemoryOperation;
/** Base class OpenCL memory operation helper classes
* that helps writing code for memory operations like load/store.
*/
class ICLMemoryOpHelper
{
public:
/** Constructor
*
* @param[in] writer @ref ckw::CLKernelWriter object to write the code
* @param[in] tensor @ref ckw::ITensor object to perform the memory operation on
* @param[in] sampler @ref ckw::TensorSampler object that tells how to sample a tensor
* @param[in] op The memory operation to be done (e.g. Load/Store)
* @param[in] dst The tile to perform the memory operation on
*/
ICLMemoryOpHelper(CLKernelWriter *writer,
ITensor *tensor,
TensorSampler *sampler,
MemoryOperation op,
const TileView<CLTile> &dst)
: _writer(writer), _tensor(tensor), _sampler(sampler), _op(op), _dst(dst)
{
_mapper = std::make_unique<Tensor3dMapper>(tensor, sampler->format());
_ls_width_full = _dst.width();
}
/** Copy constructor */
ICLMemoryOpHelper(const ICLMemoryOpHelper &) = delete;
/** Assignment operator overload */
ICLMemoryOpHelper &operator=(const ICLMemoryOpHelper &) = delete;
/** Destructor */
virtual ~ICLMemoryOpHelper() = default;
/** Initialization method that takes a 3D tensor's x, z dimensions and
* the batch offset as a tile object, and initializes the code inside
* the writer object.
*
* @param[in] x tile object that describes the x-coordinate of the tensor involved
* @param[in] z tile object that describes the z-coordinate of the tensor involved
* @param[in] b tile object that describes the batch offset of the tensor involved
*/
virtual void initialize(const CLTile *x, const CLTile *z, const CLTile *b) = 0;
/** Method that writes the actual code to the writer that performs the mentioned memory
* operation on the tile initialized. It writes the code for a specific row given in the
* arguments.
*
* @param[in] row_id row id
* @param[in] coord_y y-coordinate as string
*/
virtual void write_row(int32_t row_id, const std::string &coord_y) = 0;
/** Method that finalizes the code in the writer object. This part is usually for taking
* care of finalizing anything that's been initialized inside @ref IMemoryHelper::initialize()
* such as matching compound statements, checking certain boundary conditions etc. No inputs
* and/or outputs, only the writer object is affected.
*/
virtual void finalize() = 0;
protected:
CLKernelWriter *_writer{nullptr};
ITensor *_tensor{nullptr};
TensorSampler *_sampler{nullptr};
MemoryOperation _op;
std::unique_ptr<Tensor3dMapper> _mapper{nullptr};
TileView<CLTile> _dst{};
int32_t _ls_width_full{0};
std::string _coord_x{};
std::string _coord_z{};
std::string _coord_b{};
};
} // namespace ckw
#endif // CKW_SRC_CL_HELPERS_ICLMEMORYOPHELPER_H
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