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https://github.com/intel/compute-runtime.git
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38 lines
698 B
C
38 lines
698 B
C
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/*
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* Copyright (C) 2021 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#pragma once
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#include "shared/source/utilities/cpuintrinsics.h"
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#include <cstdint>
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#include <thread>
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namespace NEO {
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namespace WaitUtils {
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constexpr uint32_t defaultWaitCount = 64u;
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extern uint32_t waitCount;
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inline bool waitFunction(volatile uint32_t *pollAddress, uint32_t expectedValue) {
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for (uint32_t i = 0; i < waitCount; i++) {
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CpuIntrinsics::pause();
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}
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if (pollAddress != nullptr) {
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if (*pollAddress >= expectedValue) {
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return true;
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}
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}
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std::this_thread::yield();
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return false;
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}
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void init();
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} // namespace WaitUtils
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} // namespace NEO
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