97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
/*
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* Copyright (c) 2022-2025, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef FLASHINFER_ARCH_CONDITION_H_
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#define FLASHINFER_ARCH_CONDITION_H_
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namespace flashinfer {
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namespace detail {
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#ifdef __CUDA_ARCH__
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#ifdef __CUDA_ARCH_SPECIFIC__
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static constexpr bool isArchSpecific = true;
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#else
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static constexpr bool isArchSpecific = false;
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#endif
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struct arch_info {
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static constexpr bool mIsDevice = true;
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static constexpr bool mArchSpecific = isArchSpecific;
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static constexpr int mMajor = __CUDA_ARCH__ / 100;
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static constexpr int mMinor = __CUDA_ARCH__ / 10 % 10;
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static constexpr int mArch = __CUDA_ARCH__ / 10;
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};
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#else
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struct arch_info {
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static constexpr bool mIsDevice = false;
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static constexpr bool mArchSpecific = false;
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static constexpr int mMajor = 0;
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static constexpr int mMinor = 0;
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static constexpr int mArch = 0;
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};
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#endif
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#if __CUDA_ARCH__ >= 900
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#if CUDA_VERSION >= 12090
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#if !defined(__CUDA_ARCH_SPECIFIC__) && !defined(__CUDA_ARCH_FAMILY_SPECIFIC__)
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#error \
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"Compiling for SM90 or newer architectures must use Arch specific or Arch Family specific target"
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#endif
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#endif
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#endif
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} // namespace detail
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namespace arch {
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struct is_device : std::bool_constant<detail::arch_info::mIsDevice> {};
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struct is_arch_specific : std::bool_constant<detail::arch_info::mArchSpecific> {};
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template <int Arch>
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struct is_match : std::bool_constant<is_device::value && detail::arch_info::mArch == Arch> {};
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template <int Major>
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struct is_major : std::bool_constant<is_device::value && detail::arch_info::mMajor == Major> {};
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template <int Arch>
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struct is_compatible
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: std::bool_constant<is_major<Arch>::value && detail::arch_info::mArch >= Arch> {};
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inline constexpr bool is_device_v = is_device::value;
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inline constexpr bool is_arch_specific_v = is_arch_specific::value;
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template <int Arch>
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inline constexpr bool is_match_v = is_match<Arch>::value;
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template <int Major>
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inline constexpr bool is_major_v = is_major<Major>::value;
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template <int Arch>
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inline constexpr bool is_compatible_v = is_compatible<Arch>::value;
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} // namespace arch
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} // namespace flashinfer
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#endif // FLASHINFER_ARCH_CONDITION_H_
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