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fb1a008414
Instead of creating new allocation per fence, use the task count. Fence synchronize will wait for task count update. Related-To: NEO-6634 Signed-off-by: Dominik Dabek <dominik.dabek@intel.com>
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*
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* Copyright (C) 2020-2022 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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#include "level_zero/core/source/fence/fence.h"
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#include "shared/source/command_stream/command_stream_receiver.h"
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#include "shared/source/helpers/constants.h"
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#include "shared/source/helpers/string.h"
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#include "shared/source/memory_manager/memory_manager.h"
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#include "shared/source/utilities/wait_util.h"
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namespace L0 {
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Fence *Fence::create(CommandQueueImp *cmdQueue, const ze_fence_desc_t *desc) {
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auto fence = new FenceImp(cmdQueue);
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UNRECOVERABLE_IF(fence == nullptr);
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fence->reset();
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return fence;
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}
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ze_result_t FenceImp::queryStatus() {
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auto csr = cmdQueue->getCsr();
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csr->downloadAllocations();
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auto *hostAddr = csr->getTagAddress();
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return csr->testTaskCountReady(hostAddr, taskCount) ? ZE_RESULT_SUCCESS : ZE_RESULT_NOT_READY;
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}
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ze_result_t FenceImp::assignTaskCountFromCsr() {
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auto csr = cmdQueue->getCsr();
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taskCount = csr->peekTaskCount() + 1;
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return ZE_RESULT_SUCCESS;
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}
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ze_result_t FenceImp::reset() {
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taskCount = std::numeric_limits<uint32_t>::max();
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return ZE_RESULT_SUCCESS;
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}
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ze_result_t FenceImp::hostSynchronize(uint64_t timeout) {
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std::chrono::high_resolution_clock::time_point time1, time2;
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uint64_t timeDiff = 0;
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ze_result_t ret = ZE_RESULT_NOT_READY;
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if (cmdQueue->getCsr()->getType() == NEO::CommandStreamReceiverType::CSR_AUB) {
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return ZE_RESULT_SUCCESS;
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}
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if (std::numeric_limits<uint32_t>::max() == taskCount) {
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return ZE_RESULT_NOT_READY;
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}
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if (timeout == 0) {
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return queryStatus();
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}
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time1 = std::chrono::high_resolution_clock::now();
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while (timeDiff < timeout) {
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ret = queryStatus();
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if (ret == ZE_RESULT_SUCCESS) {
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return ZE_RESULT_SUCCESS;
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}
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NEO::WaitUtils::waitFunction(nullptr, 0u);
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if (timeout == std::numeric_limits<uint64_t>::max()) {
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continue;
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}
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time2 = std::chrono::high_resolution_clock::now();
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timeDiff = std::chrono::duration_cast<std::chrono::nanoseconds>(time2 - time1).count();
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}
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return ret;
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}
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} // namespace L0
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