108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
/*
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* Copyright (C) 2017-2019 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 "runtime/os_interface/linux/drm_gem_close_worker.h"
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#include "core/helpers/aligned_memory.h"
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#include "runtime/os_interface/linux/drm_buffer_object.h"
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#include "runtime/os_interface/linux/drm_command_stream.h"
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#include "runtime/os_interface/linux/drm_memory_manager.h"
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#include "runtime/os_interface/os_thread.h"
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#include <atomic>
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#include <iostream>
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#include <queue>
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#include <stdio.h>
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namespace NEO {
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DrmGemCloseWorker::DrmGemCloseWorker(DrmMemoryManager &memoryManager) : memoryManager(memoryManager) {
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thread = Thread::create(worker, reinterpret_cast<void *>(this));
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}
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void DrmGemCloseWorker::closeThread() {
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if (thread) {
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while (!workerDone.load()) {
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condition.notify_all();
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}
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thread->join();
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thread.reset();
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}
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}
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DrmGemCloseWorker::~DrmGemCloseWorker() {
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active = false;
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closeThread();
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}
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void DrmGemCloseWorker::push(BufferObject *bo) {
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std::unique_lock<std::mutex> lock(closeWorkerMutex);
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workCount++;
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queue.push(bo);
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lock.unlock();
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condition.notify_one();
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}
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void DrmGemCloseWorker::close(bool blocking) {
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active = false;
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condition.notify_all();
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if (blocking) {
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closeThread();
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}
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}
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bool DrmGemCloseWorker::isEmpty() {
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return workCount.load() == 0;
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}
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inline void DrmGemCloseWorker::close(BufferObject *bo) {
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bo->wait(-1);
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memoryManager.unreference(bo);
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workCount--;
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}
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void *DrmGemCloseWorker::worker(void *arg) {
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DrmGemCloseWorker *self = reinterpret_cast<DrmGemCloseWorker *>(arg);
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BufferObject *workItem = nullptr;
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std::queue<BufferObject *> localQueue;
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std::unique_lock<std::mutex> lock(self->closeWorkerMutex);
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lock.unlock();
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while (self->active) {
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lock.lock();
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workItem = nullptr;
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while (self->queue.empty() && self->active) {
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self->condition.wait(lock);
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}
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if (!self->queue.empty()) {
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localQueue.swap(self->queue);
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}
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lock.unlock();
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while (!localQueue.empty()) {
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workItem = localQueue.front();
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localQueue.pop();
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self->close(workItem);
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}
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}
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lock.lock();
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while (!self->queue.empty()) {
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workItem = self->queue.front();
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self->queue.pop();
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self->close(workItem);
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}
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lock.unlock();
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self->workerDone.store(true);
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return nullptr;
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}
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} // namespace NEO
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