derek.holloway
7502bf64a4
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44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
//===----------------------------------------------------------------------===//
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//
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// Part of libcu++, the C++ Standard Library for your entire system,
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// under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _CUDA___BARRIER_COMPLETION_MECHANISM_H
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#define _CUDA___BARRIER_COMPLETION_MECHANISM_H
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#include <cuda/std/detail/__config>
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#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
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# pragma GCC system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
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# pragma clang system_header
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#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
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# pragma system_header
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#endif // no system header
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_LIBCUDACXX_BEGIN_NAMESPACE_CUDA
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//! @brief __completion_mechanism allows memcpy_async to report back what completion
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//! mechanism it used. This is necessary to determine in which way to synchronize
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//! the memcpy_async with a sync object (barrier or pipeline).
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//
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//! In addition, we use this enum to create bit flags so that calling functions
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//! can specify which completion mechanisms can be used (__sync is always
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//! allowed).
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enum class __completion_mechanism
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{
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__sync = 0,
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__mbarrier_complete_tx = 1 << 0, // Use powers of two here to support the
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__async_group = 1 << 1, // bit flag use case
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__async_bulk_group = 1 << 2,
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};
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_LIBCUDACXX_END_NAMESPACE_CUDA
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#endif // _CUDA___BARRIER_COMPLETION_MECHANISM_H
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