f125c8db5c
Add a new nextgen plugin that supports GPU devices through the Intel oneAPI Level Zero library. The plugin is not enabled by default and needs to be added to LIBOMPTARGET_PLUGINS_TO_BUILD explicitely. --------- Co-authored-by: Alexey Sachkov <alexey.sachkov@intel.com> Co-authored-by: Nick Sarnie <nick.sarnie@intel.com> Co-authored-by: Joseph Huber <huberjn@outlook.com>
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
//===--- Level Zero Target RTL Implementation -----------------------------===//
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//
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// Part of the LLVM Project, 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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//
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//===----------------------------------------------------------------------===//
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//
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// External and other auxilary definitions.
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//
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//===----------------------------------------------------------------------===//
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#ifndef OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_L0DEFS_H
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#define OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_L0DEFS_H
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#include "PluginInterface.h"
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#include "Shared/Requirements.h"
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#include "omptarget.h"
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enum class AllocOptionTy : int32_t {
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ALLOC_OPT_NONE = 0,
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ALLOC_OPT_REDUCTION_SCRATCH = 1,
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ALLOC_OPT_REDUCTION_COUNTER = 2,
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ALLOC_OPT_HOST_MEM = 3,
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ALLOC_OPT_SLM = 4,
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};
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namespace llvm::omp::target::plugin {
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/// Default alignmnet for allocation.
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constexpr size_t L0DefaultAlignment = 0;
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/// Default staging buffer size for host to device copy (16KB).
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constexpr size_t L0StagingBufferSize = (1 << 14);
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/// Default staging buffer count.
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constexpr size_t L0StagingBufferCount = 64;
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/// USM allocation threshold where preallocation does not pay off (128MB).
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constexpr size_t L0UsmPreAllocThreshold = (128 << 20);
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/// Host USM allocation threshold where preallocation does not pay off (8MB).
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constexpr size_t L0HostUsmPreAllocThreshold = (8 << 20);
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/// Maximum wait time.
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constexpr uint64_t L0DefaultTimeout = std::numeric_limits<uint64_t>::max();
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/// Generic L0 handle type.
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using ZeHandleTy = void *;
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using error::ErrorCode;
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} // namespace llvm::omp::target::plugin
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#endif // OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_L0DEFS_H
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