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 // SPDX-License-Identifier: MIT
 // Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
  
 #pragma once
  
 #include "ck_tile/core.hpp"
  
 namespace ck_tile {
  
 template <typename QDataType_,
           typename KDataType_,
           typename VDataType_,
           typename GemmDataType_,
           typename LSEDataType_,
           typename AccDataType_,
           typename DDataType_,
           typename BiasDataType_,
           typename RandValOutputDataType_,
           typename ODataType_,
           typename OGradDataType_,
           typename QGradDataType_,
           typename KGradDataType_,
           typename VGradDataType_,
           typename BiasGradDataType_,
           typename BlockFmhaShape_,
           bool kIsGroupMode_,
           bool kIsDeterministic_,
           typename FmhaMask_,
           typename FmhaDropout_,
           bool kUseTrLoad_,
           typename Traits_>
 struct BlockFmhaBwdPipelineProblem
 {
     using QDataType             = remove_cvref_t<QDataType_>;
     using KDataType             = remove_cvref_t<KDataType_>;
     using VDataType             = remove_cvref_t<VDataType_>;
     using GemmDataType          = remove_cvref_t<GemmDataType_>;
     using LSEDataType           = remove_cvref_t<LSEDataType_>;
     using AccDataType           = remove_cvref_t<AccDataType_>;
     using DDataType             = remove_cvref_t<DDataType_>;
     using BiasDataType          = remove_cvref_t<BiasDataType_>;
     using RandValOutputDataType = remove_cvref_t<RandValOutputDataType_>;
     using ODataType             = remove_cvref_t<ODataType_>;
     using OGradDataType         = remove_cvref_t<OGradDataType_>;
     using QGradDataType         = remove_cvref_t<QGradDataType_>;
     using KGradDataType         = remove_cvref_t<KGradDataType_>;
     using VGradDataType         = remove_cvref_t<VGradDataType_>;
     using BiasGradDataType      = remove_cvref_t<BiasGradDataType_>;
     using BlockFmhaShape        = remove_cvref_t<BlockFmhaShape_>;
     using FmhaMask              = remove_cvref_t<FmhaMask_>;
     using FmhaDropout           = remove_cvref_t<FmhaDropout_>;
     using Traits                = remove_cvref_t<Traits_>;
  
     static constexpr index_t kBlockSize    = BlockFmhaShape::NumWarps * get_warp_size();
     static constexpr bool kIsGroupMode     = kIsGroupMode_;
     static constexpr bool kIsDeterministic = kIsDeterministic_;
     static constexpr bool kUseTrLoad       = kUseTrLoad_;
  
     // attributes from traits
     static constexpr bool kPadHeadDimQ   = Traits::kPadHeadDimQ;
     static constexpr bool kPadHeadDimV   = Traits::kPadHeadDimV;
     static constexpr auto BiasEnum       = Traits::BiasEnum;
     static constexpr bool kHasBiasGrad   = Traits::kHasBiasGrad;
     static constexpr index_t kBlockPerCu = Traits::kBlockPerCu;
     static_assert(!Traits::kPadSeqLenQ, "BlockFmhaBwdPipelineProblem does not need kPadSeqLenQ");
     static_assert(!Traits::kPadSeqLenK, "BlockFmhaBwdPipelineProblem does not need kPadSeqLenQ");
 };
  
 template <typename ODataType_,
           typename OGradDataType_,
           typename DDataType_,
           index_t kBlockSize_,
           index_t kVHeaddim_,
           bool kIsGroupMode_,
           typename Traits_>
 struct BlockFmhaBwdOGradDotOPipelineProblem
 {
     using ODataType     = remove_cvref_t<ODataType_>;
     using OGradDataType = remove_cvref_t<OGradDataType_>;
     using DDataType     = remove_cvref_t<DDataType_>;
     using Traits        = remove_cvref_t<Traits_>;
  
     static_assert(0 < kBlockSize_ && kBlockSize_ % get_warp_size() == 0,
                   "kBlockSize should be divisible by get_warp_size()");
  
     static constexpr index_t kBlockSize = kBlockSize_;
     static constexpr index_t kVHeaddim  = kVHeaddim_;
     static constexpr bool kIsGroupMode  = kIsGroupMode_;
  
     // attributes from traits
     static constexpr bool kPadSeqLenQ    = Traits::kPadSeqLenQ;
     static constexpr bool kPadHeadDimV   = Traits::kPadHeadDimV;
     static constexpr index_t kBlockPerCu = Traits::kBlockPerCu;
 };
  
 template <typename AccDataType_,
           typename QGradDataType_,
           index_t kBlockSize_,
           index_t kM0_,
           index_t kN0_,
           index_t kQKHeaddim_,
           bool kIsGroupMode_,
           bool kIsDeterministic_,
           typename Traits_>
 struct BlockFmhaBwdConvertQGradPipelineProblem
 {
     using AccDataType   = remove_cvref_t<AccDataType_>;
     using QGradDataType = remove_cvref_t<QGradDataType_>;
     using Traits        = remove_cvref_t<Traits_>;
  
     static_assert(0 < kBlockSize_ && kBlockSize_ % get_warp_size() == 0,
                   "kBlockSize should be divisible by get_warp_size()");
  
     static constexpr index_t kBlockSize    = kBlockSize_;
     static constexpr index_t kM0           = kM0_;
     static constexpr index_t kN0           = kN0_;
     static constexpr index_t kQKHeaddim    = kQKHeaddim_;
     static constexpr bool kIsGroupMode     = kIsGroupMode_;
     static constexpr bool kIsDeterministic = kIsDeterministic_;
  
     // attributes from traits
     static constexpr bool kPadSeqLenQ    = Traits::kPadSeqLenQ;
     static constexpr bool kPadHeadDimQ   = Traits::kPadHeadDimQ;
     static constexpr index_t kBlockPerCu = Traits::kBlockPerCu;
 };
  
 } // namespace ck_tile