/**
 * Copyright (c) 2024 Huawei Technologies Co., Ltd.
 * This file is a part of the CANN Open Software.
 * Licensed under CANN Open Software License Agreement Version 1.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

/*!
 * \file exp_tiling.h
 * \brief
 */
#ifndef LIB_MATH_EXP_TILING_H
#define LIB_MATH_EXP_TILING_H
#include <cstdint>

#include "graph/tensor.h"
namespace AscendC {

/*!
 * \brief The calculation of the Exp interface requires the developer to reserve or apply for temporary space. The
 * relationship between the maximum temporary space (maxTmpBuffer) and the space occupied by the input (inputSize x
 * typeSize) is as follows: maxTmpBuffer = maxLiveNodeCnt * inputSize * typeSize + extraBuf
 * This interface is used to obtain maxLiveNodeCnt and extraBuf.
 * \param [in] typeSize: size of the input data type, in bytes
 * \param [out] maxLiveNodeCount: the multiple of the maximum temporary space to the input occupied space
 * \param [out] extraBuffer: the size of the extra temporary space
 */
void GetExpTmpBufferFactorSize(const uint32_t typeSize, uint32_t& maxLiveNodeCount, uint32_t& extraBuffer);

/*!
 * \brief This interface is used to obtain the maximum and minimum temporary space reserved or applied.
 * The developer selects a proper space size based on this range as the tiling parameter.
 * \param [in] srcShape: input shape information
 * \param [in] typeSize: size of the input data type, in bytes
 * \param [in] isReuseSource: whether to reuse the input space of the source operand
 * \param [out] maxValue: maximum temporary space required
 * \param [out] minValue: minimum temporary space required
 */
bool GetExpMaxMinTmpSize(const ge::Shape& srcShape, const uint32_t typeSize, const bool isReuseSource,
    uint32_t& maxValue, uint32_t& minValue);
} // namespace AscendC
#endif // LIB_MATH_EXP_TILING_H