/*
* Copyright (c) 2024 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.
*/

#include <mki/base/kernel_base.h>
#include <mki_loader/op_register.h>
#include <mki/utils/log/log.h>
#include "atbops/params/params.h"
#include "tiling/fastsoftmax_tiling.h"
#include "tiling/tiling_data.h"

namespace AtbOps {
using namespace Mki;
class FastSoftMaxKernel : public KernelBase {
public:
    explicit FastSoftMaxKernel(const std::string &kernelName, const BinHandle *handle) noexcept
        : KernelBase(kernelName, handle)
    {
    }

    bool CanSupport(const LaunchParam &launchParam) const override
    {
        MKI_CHECK(launchParam.GetInTensorCount() == 1, "in tensor num invalid", return false);
        MKI_CHECK(launchParam.GetOutTensorCount() == 1, "out tensor num invalid", return false);
        MKI_CHECK(launchParam.GetParam().Type() == typeid(OpParam::FastSoftMax),
            "param type invalid", return false);
        return true;
    }

    uint64_t GetTilingSize(const LaunchParam &launchParam) const override
    {
        MKI_CHECK(launchParam.GetParam().Type() == typeid(OpParam::FastSoftMax),
            "param type invalid", return 0);
        auto param = AnyCast<OpParam::FastSoftMax>(launchParam.GetParam());
        auto batchSize = param.qSeqLen.size();
        MKI_CHECK(batchSize > 0 && batchSize <= MAX_BATCH_SIZE, "batch size invalid", return 0);
        return sizeof(FastSoftMaxTilingData) + batchSize * sizeof(FastSoftMaxSampleTilingData);
    }

    Status InitImpl(const LaunchParam &launchParam) override
    {
        return FastSoftMaxTiling(launchParam, kernelInfo_);
    }
};

REG_KERNEL_BASE(FastSoftMaxKernel);

}  // namespace AtbOps