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#include "fmha.h"
#include "fmha_fprop_kernel_1xN.h"

using Kernel_traits = FMHA_kernel_traits< 128, 64, 16, 1, 4, 0x08u>;

extern "C" __global__ void fmha_fprop_fp16_128_64_sm80_train_kernel(Fused_multihead_attention_fprop_params params) {
    fmha::device_1xN<Kernel_traits, true>(params);
}

extern "C" __global__ void fmha_fprop_fp16_128_64_sm80_predict_kernel(Fused_multihead_attention_fprop_params params) {
    fmha::device_1xN<Kernel_traits, false>(params);
}

void run_fmha_fp16_128_64_sm80(const Fused_multihead_attention_fprop_params &params, bool is_training, cudaStream_t stream) {

    auto kernel = is_training ? &fmha_fprop_fp16_128_64_sm80_train_kernel : &fmha_fprop_fp16_128_64_sm80_predict_kernel;

    constexpr int smem_size_softmax = Kernel_traits::Cta_tile_p::M * Kernel_traits::Cta_tile_p::WARPS_N * sizeof(float);
    constexpr int smem_size_q = Kernel_traits::Smem_tile_q::BYTES_PER_TILE;
    constexpr int smem_size_v = Kernel_traits::Smem_tile_v::BYTES_PER_TILE;
    constexpr int smem_size_o = Kernel_traits::Smem_tile_o::BYTES_PER_TILE;

    constexpr int smem_size = smem_size_q + std::max(smem_size_v, smem_size_o + smem_size_softmax);

    if( smem_size >= 48 * 1024 ) {
        FMHA_CHECK_CUDA(cudaFuncSetAttribute(kernel, cudaFuncAttributeMaxDynamicSharedMemorySize, smem_size));
    }

    dim3 grid(params.h, params.b);
    kernel<<<grid, Kernel_traits::THREADS, smem_size, stream>>>(params);
}