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>
45 lines
1.5 KiB
C++
45 lines
1.5 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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// Async Queue wrapper for Level Zero.
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//
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//===----------------------------------------------------------------------===//
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#ifndef OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
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#define OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
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#include <tuple>
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#include "L0Memory.h"
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namespace llvm::omp::target::plugin {
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/// Abstract queue that supports asynchronous command submission.
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struct AsyncQueueTy {
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/// List of events attached to submitted commands.
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llvm::SmallVector<ze_event_handle_t> WaitEvents;
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/// Pending staging buffer to host copies.
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llvm::SmallVector<std::tuple<void *, void *, size_t>> H2MList;
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/// Pending USM memory copy commands that must wait for kernel completion.
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llvm::SmallVector<std::tuple<const void *, void *, size_t>> USM2MList;
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/// Kernel event not signaled.
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ze_event_handle_t KernelEvent = nullptr;
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/// Clear data.
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void reset() {
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WaitEvents.clear();
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H2MList.clear();
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USM2MList.clear();
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KernelEvent = nullptr;
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}
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};
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using AsyncQueuePoolTy = ObjPool<AsyncQueueTy>;
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} // namespace llvm::omp::target::plugin
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#endif // OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
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