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//===--- Level Zero Target RTL Implementation -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Async Queue wrapper for Level Zero.
//
//===----------------------------------------------------------------------===//
#ifndef OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
#define OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
#include <tuple>
#include "L0Memory.h"
namespace llvm::omp::target::plugin {
/// Abstract queue that supports asynchronous command submission.
struct AsyncQueueTy {
/// List of events attached to submitted commands.
llvm::SmallVector<ze_event_handle_t> WaitEvents;
/// Pending staging buffer to host copies.
llvm::SmallVector<std::tuple<void *, void *, size_t>> H2MList;
/// Pending USM memory copy commands that must wait for kernel completion.
llvm::SmallVector<std::tuple<const void *, void *, size_t>> USM2MList;
/// Kernel event not signaled.
ze_event_handle_t KernelEvent = nullptr;
/// Clear data.
void reset() {
WaitEvents.clear();
H2MList.clear();
USM2MList.clear();
KernelEvent = nullptr;
}
};
using AsyncQueuePoolTy = ObjPool<AsyncQueueTy>;
} // namespace llvm::omp::target::plugin
#endif // OPENMP_LIBOMPTARGET_PLUGINS_NEXTGEN_LEVEL_ZERO_ASYNCQUEUE_H
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