/*
 * Copyright (c) 2020-2023, NVIDIA CORPORATION.  All rights reserved.
 * Copyright (c) 2021, NAVER Corp.  Authored by CLOVA.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#pragma once

#include <curand_kernel.h>

namespace tensorrt_llm
{
namespace kernels
{

template <typename T>
void invokeTopKSampling(void* workspace, size_t& workspace_size, const T* log_probs, int** ids, int* sequence_length,
    bool* finished_buf, float* cum_log_probs, float* output_log_probs, curandState_t* curandstate, const int top_k,
    const float top_p, const int vocab_size_padded, const int* end_ids, cudaStream_t stream, const int batch_size,
    const bool* skip_decode);

template <typename T>
void invokeBatchTopKSampling(void* workspace, size_t& workspace_size, const T* log_probs, int** ids,
    int* sequence_lengths, bool* finished, float* cum_log_probs, float* output_log_probs, curandState_t* curandstate,
    const int max_top_k, const int* top_ks, const float top_p, const float* top_ps, const int vocab_size_padded,
    const int* end_ids, cudaStream_t stream, const int batch_size, const bool* skip_decode);

void invokeCurandInitialize(
    curandState_t* state, const size_t batch_size, unsigned long long random_seed, cudaStream_t stream);

void invokeCurandBatchInitialize(
    curandState_t* states, const size_t batch_size, const unsigned long long* random_seeds, cudaStream_t stream);

template <typename T>
void invokeAddBiasEndMask(T* logits, const T* bias, const int* end_ids, const bool* finished, const int batch_size,
    const int vocab_size, const int vocab_size_padded, cudaStream_t stream);

template <typename T>
void invokeTopKTopPSampling(void* workspace, size_t& workspace_size, int** output_ids, const T* logits,
    int* sequence_lengths, bool* finished_buf, float* cum_log_probs, float* output_log_probs,
    curandState_t* curandstate, const int batch_size, const int top_k, const float top_p, const int vocab_size_padded,
    const int* end_ids, cudaStream_t stream);

} // namespace kernels
} // namespace tensorrt_llm