84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
/***************************************************************************************************
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* Copyright (c) 2024 - 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************************/
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#pragma once
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#include "cutlass/cutlass.h"
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namespace cutlass::fmha::kernel {
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template<auto kTag, typename Default, typename... Options>
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struct find_option;
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template<auto kTag, typename Default>
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struct find_option<kTag, Default> {
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using option_value = Default;
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};
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template<auto kTag, typename Default, typename Option, typename... Options>
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struct find_option<kTag, Default, Option, Options...> :
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std::conditional_t<
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Option::tag == kTag,
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Option,
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find_option<kTag, Default, Options...>
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>
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{};
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template<auto kTag, typename Default, typename... Options>
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using find_option_t = typename find_option<kTag, Default, Options...>::option_value;
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enum class Tag {
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kIsPersistent,
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kNumMmaWarpGroups,
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kLoadsQSeparately,
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kIsMainloopLocked,
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kIsEpilogueLocked,
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kStagesQ,
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kStagesKV,
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kEpilogueKind,
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kBlocksPerSM,
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kClusterM,
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kAccQK
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};
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template<auto kTag, class Value>
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struct Option {
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static constexpr auto tag = kTag;
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using option_value = Value;
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};
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} // namespace cutlass::fmha::kernel
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