/**

* Copyright (c) 2025 Huawei Technologies Co., Ltd.

* This program is free software, you can redistribute it and/or modify it under the terms and conditions of

* CANN Open Software License Agreement Version 2.0 (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 kernel_operator_vec_scatter_intf_impl.h

 * \brief

 */

#ifndef ASCENDC_MODULE_OPERATOR_VEC_SCATTER_INTERFACE_IMPL_H

#define ASCENDC_MODULE_OPERATOR_VEC_SCATTER_INTERFACE_IMPL_H

#include "kernel_tensor.h"

#include "kernel_check.h"



#if __NPU_ARCH__ == 1001

#include "dav_c100/kernel_operator_vec_scatter_impl.h"

#elif __NPU_ARCH__ == 2002

#include "dav_m200/kernel_operator_vec_scatter_impl.h"

#elif __NPU_ARCH__ == 2201

#include "dav_c220/kernel_operator_vec_scatter_impl.h"

#elif __NPU_ARCH__ == 3002

#include "dav_m300/kernel_operator_vec_scatter_impl.h"

#elif __NPU_ARCH__ == 3102

#include "dav_m310/kernel_operator_vec_scatter_impl.h"

#elif __NPU_ARCH__ == 3101

#include "dav_c310/kernel_operator_vec_scatter_impl.h"

#elif (__NPU_ARCH__ == 5102)

#include "dav_m510/kernel_operator_vec_scatter_impl.h"

#elif (__NPU_ARCH__ == 3003)

#include "dav_l300/kernel_operator_vec_scatter_impl.h"

#elif (__NPU_ARCH__ == 3113)

#include "dav_l311/kernel_operator_vec_scatter_impl.h"

#endif



#pragma begin_pipe(V)

namespace AscendC {

template <typename T>

__aicore__ inline void ScatterCheck()

{

    using PrimType = PrimT<T>;

#if (__NPU_ARCH__ == 3101) || (__NPU_ARCH__ == 5102)

    ASCENDC_ASSERT((SupportType<PrimType, uint8_t, int8_t, half, bfloat16_t, uint16_t, int16_t, float, uint32_t,

        int32_t, uint64_t, int64_t>()), {KERNEL_LOG(KERNEL_ERROR,

        "Failed to check dtype in Scatter, current api support dtype combination is src and dst both: "

        "uint8 / int8 / half / bfloat16_t / uint16_t / int16_t / float / uint32_t / int32_t, uint64_t, int64_t");});

#elif ((__NPU_ARCH__ == 3002) || (__NPU_ARCH__ == 3102) || (__NPU_ARCH__ == 3101))

    ASCENDC_ASSERT((SupportType<PrimType, uint8_t, int8_t, half, bfloat16_t, uint16_t, int16_t, float, uint32_t,

        int32_t>()), {KERNEL_LOG(KERNEL_ERROR,

        "Failed to check dtype in Scatter, current api support dtype combination is src and "

        "dst both: uint8 / int8 / half / bfloat16_t / uint16_t / int16_t / float / uint32_t / int32_t");});

#else

    ASCENDC_ASSERT((SupportType<PrimType, half, uint16_t, int16_t, float, uint32_t, int32_t>()),

        {KERNEL_LOG(KERNEL_ERROR, "Failed to check dtype in Scatter, current api support dtype combination is src and "

        "dst both: half / uint16_t / int16_t / float / uint32_t / int32_t");});

#endif

}



/*

 * @ingroup scatter Level 0

 * @brief scatter element from dst according to dstOffset

 * @param [out] dst output LocalTensor

 * @param [in] src input LocalTensor

 * @param [in] dstOffset input LocalTensor

 * @param [in] dstBaseAddr base address of dst

 * @param [in] mask valid element count

 * @param [in] repeatTime repeat times

 * @param [in] dstRepStride dst repeat stride

 */

template <typename T>

__aicore__ inline void Scatter(const LocalTensor<T>& dst, const LocalTensor<T>& src,

    const LocalTensor<uint32_t>& dstOffset, const uint32_t dstBaseAddr, const uint64_t mask,

    const uint8_t repeatTime, const uint8_t srcRepStride)

{

#if ASCENDC_CPU_DEBUG

    if (!CheckFunScatter(dst, src, dstOffset, dstBaseAddr, mask, repeatTime, srcRepStride, "Scatter")) {

        ASCENDC_REPORT_CHECK_ERROR("Scatter", KernelFuncType::MASK_COUNT_MODE);

    }

#endif

    using PrimType = PrimT<T>;

    ScatterCheck<T>();

    const uint32_t dstLength = dst.GetSize();

    ScatterImpl((__ubuf__ PrimType *)dst.GetPhyAddr(), (__ubuf__ PrimType *)src.GetPhyAddr(),

        (__ubuf__ uint32_t *)dstOffset.GetPhyAddr(), dstLength, dstBaseAddr, mask, repeatTime, srcRepStride);

}



/*

 * @ingroup scatter Level 0

 * @brief scatter element from dst according to dstOffset

 * @param [out] dst output LocalTensor

 * @param [in] src input LocalTensor

 * @param [in] dstOffset input LocalTensor

 * @param [in] dstBaseAddr base address of dst

 * @param [in] mask valid element count(bit mode)

 * @param [in] repeatTime repeat times

 * @param [in] dstRepStride dst repeat stride

 */

template <typename T>

__aicore__ inline void Scatter(const LocalTensor<T>& dst, const LocalTensor<T>& src,

    const LocalTensor<uint32_t>& dstOffset, const uint32_t dstBaseAddr, const uint64_t mask[],

    const uint8_t repeatTime, const uint8_t srcRepStride)

{

#if ASCENDC_CPU_DEBUG

    if (!CheckFunScatter(dst, src, dstOffset, dstBaseAddr, mask, repeatTime, srcRepStride, "Scatter")) {

        ASCENDC_REPORT_CHECK_ERROR("Scatter", KernelFuncType::MASK_BIT_MODE);

    }

#endif

    using PrimType = PrimT<T>;

    ScatterCheck<T>();

    const uint32_t dstLength = dst.GetSize();

    ScatterImpl((__ubuf__ PrimType *)dst.GetPhyAddr(), (__ubuf__ PrimType *)src.GetPhyAddr(),

        (__ubuf__ uint32_t *)dstOffset.GetPhyAddr(), dstLength, dstBaseAddr, mask, repeatTime, srcRepStride);

}



/*

 * @ingroup scatter Level 2

 * @brief scatter element from dst according to dstOffset

 * @param [out] dst output LocalTensor

 * @param [in] src input LocalTensor

 * @param [in] dstOffset input LocalTensor

 * @param [in] dstBaseAddr base address of dst

 * @param [in] count element count

 */

template <typename T>

__aicore__ inline void Scatter(const LocalTensor<T>& dst, const LocalTensor<T>& src,

    const LocalTensor<uint32_t>& dstOffset, const uint32_t dstBaseAddr, const uint32_t count)

{

#if ASCENDC_CPU_DEBUG

    if (!CheckFunScatter(dst, src, dstOffset, dstBaseAddr, count, "Scatter")) {

        ASCENDC_REPORT_CHECK_ERROR("Scatter", KernelFuncType::NONE_MODE);

    }

#endif

    using PrimType = PrimT<T>;

    ScatterCheck<T>();

    uint32_t vectorRegWidth = 256;

#if (__NPU_ARCH__ == 3002) || (__NPU_ARCH__ == 3102) || (__NPU_ARCH__ == 3101) || (__NPU_ARCH__ == 5102)

    ScatterImpl((__ubuf__ PrimType *)dst.GetPhyAddr(), (__ubuf__ PrimType *)src.GetPhyAddr(),

        (__ubuf__ uint32_t *)dstOffset.GetPhyAddr(), dstBaseAddr, count);

#else

    uint32_t elementCountSingleRepeat;

    if constexpr (sizeof(PrimType) == sizeof(uint16_t)) {

        elementCountSingleRepeat = 128;

    } else {

        elementCountSingleRepeat = 64;

    }

#if defined(__NPU_ARCH__) && ((__NPU_ARCH__ == 3003) || \

    (__NPU_ARCH__ == 3113))

    vectorRegWidth = VECTOR_REG_WIDTH;

#endif

#if defined(__NPU_ARCH__) && ((__NPU_ARCH__ == 3003) || \

    (__NPU_ARCH__ == 3113))

    elementCountSingleRepeat = vectorRegWidth / sizeof(T);

    uint32_t repeatStride = vectorRegWidth / ONE_BLK_SIZE;

#endif

    const uint32_t elementCountTail = count % elementCountSingleRepeat;

    const uint8_t repeatTime = count / elementCountSingleRepeat;

#if defined(__NPU_ARCH__) && ((__NPU_ARCH__ == 3003) || \

    (__NPU_ARCH__ == 3113))

    if (repeatTime > 0) {

        Scatter(dst, src, dstOffset, dstBaseAddr, (uint64_t)elementCountSingleRepeat, repeatTime,

        repeatStride);

    }

    if (elementCountTail > 0) {

        const uint32_t offset = count - elementCountTail;

        Scatter(dst, src[offset], dstOffset[offset], dstBaseAddr, (uint64_t)elementCountTail, 1,

        repeatStride);

    }

#else

    if (repeatTime > 0) {

        Scatter(dst, src, dstOffset, dstBaseAddr, static_cast<uint64_t>(elementCountSingleRepeat), repeatTime,

            DEFAULT_REPEAT_STRIDE);

    }

    if (elementCountTail > 0) {

        const uint32_t offset = count - elementCountTail;

        Scatter(dst, src[offset], dstOffset[offset], dstBaseAddr, static_cast<uint64_t>(elementCountTail), 1,

            DEFAULT_REPEAT_STRIDE);

    }

#endif

#endif

}

} // namespace AscendC

#pragma end_pipe

#endif // ASCENDC_MODULE_OPERATOR_VEC_SCATTER_INTERFACE_IMPL_H