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/*
* Copyright (C) 2018-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/memory_manager/deferrable_allocation_deletion.h"
#include "shared/source/command_stream/command_stream_receiver.h"
#include "shared/source/helpers/engine_control.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "shared/source/os_interface/os_context.h"
namespace NEO {
DeferrableAllocationDeletion::DeferrableAllocationDeletion(MemoryManager &memoryManager, GraphicsAllocation &graphicsAllocation) : memoryManager(memoryManager),
graphicsAllocation(graphicsAllocation) {}
bool DeferrableAllocationDeletion::apply() {
if (graphicsAllocation.isUsed()) {
bool isStillUsed = false;
for (auto &engine : memoryManager.getRegisteredEngines()) {
auto contextId = engine.osContext->getContextId();
if (graphicsAllocation.isUsedByOsContext(contextId)) {
auto currentContextTaskCount = *engine.commandStreamReceiver->getTagAddress();
if (graphicsAllocation.getTaskCount(contextId) <= currentContextTaskCount) {
graphicsAllocation.releaseUsageInOsContext(contextId);
} else {
isStillUsed = true;
engine.commandStreamReceiver->flushBatchedSubmissions();
}
}
}
if (isStillUsed) {
return false;
}
}
memoryManager.freeGraphicsMemory(&graphicsAllocation);
return true;
}
} // namespace NEO
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