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/*
* Copyright (C) 2018-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/memory_manager/internal_allocation_storage.h"
#include "shared/source/command_stream/command_stream_receiver.h"
#include "shared/source/memory_manager/host_ptr_manager.h"
#include "shared/source/os_interface/os_context.h"
namespace NEO {
InternalAllocationStorage::InternalAllocationStorage(CommandStreamReceiver &commandStreamReceiver)
: commandStreamReceiver(commandStreamReceiver),
temporaryAllocations(TEMPORARY_ALLOCATION),
allocationsForReuse(REUSABLE_ALLOCATION){};
void InternalAllocationStorage::storeAllocation(std::unique_ptr<GraphicsAllocation> gfxAllocation, uint32_t allocationUsage) {
uint32_t taskCount = gfxAllocation->getTaskCount(commandStreamReceiver.getOsContext().getContextId());
if (allocationUsage == REUSABLE_ALLOCATION) {
taskCount = commandStreamReceiver.peekTaskCount();
}
storeAllocationWithTaskCount(std::move(gfxAllocation), allocationUsage, taskCount);
}
void InternalAllocationStorage::storeAllocationWithTaskCount(std::unique_ptr<GraphicsAllocation> gfxAllocation, uint32_t allocationUsage, uint32_t taskCount) {
if (allocationUsage == REUSABLE_ALLOCATION) {
if (DebugManager.flags.DisableResourceRecycling.get()) {
commandStreamReceiver.getMemoryManager()->freeGraphicsMemory(gfxAllocation.release());
return;
}
}
auto &allocationsList = (allocationUsage == TEMPORARY_ALLOCATION) ? temporaryAllocations : allocationsForReuse;
gfxAllocation->updateTaskCount(taskCount, commandStreamReceiver.getOsContext().getContextId());
allocationsList.pushTailOne(*gfxAllocation.release());
}
void InternalAllocationStorage::cleanAllocationList(uint32_t waitTaskCount, uint32_t allocationUsage) {
freeAllocationsList(waitTaskCount, (allocationUsage == TEMPORARY_ALLOCATION) ? temporaryAllocations : allocationsForReuse);
}
void InternalAllocationStorage::freeAllocationsList(uint32_t waitTaskCount, AllocationsList &allocationsList) {
auto memoryManager = commandStreamReceiver.getMemoryManager();
auto lock = memoryManager->getHostPtrManager()->obtainOwnership();
GraphicsAllocation *curr = allocationsList.detachNodes();
IDList<GraphicsAllocation, false, true> allocationsLeft;
while (curr != nullptr) {
auto *next = curr->next;
if (curr->getTaskCount(commandStreamReceiver.getOsContext().getContextId()) <= waitTaskCount) {
memoryManager->freeGraphicsMemory(curr);
} else {
allocationsLeft.pushTailOne(*curr);
}
curr = next;
}
if (allocationsLeft.peekIsEmpty() == false) {
allocationsList.splice(*allocationsLeft.detachNodes());
}
}
std::unique_ptr<GraphicsAllocation> InternalAllocationStorage::obtainReusableAllocation(size_t requiredSize, GraphicsAllocation::AllocationType allocationType) {
auto allocation = allocationsForReuse.detachAllocation(requiredSize, nullptr, commandStreamReceiver, allocationType);
return allocation;
}
std::unique_ptr<GraphicsAllocation> InternalAllocationStorage::obtainTemporaryAllocationWithPtr(size_t requiredSize, const void *requiredPtr, GraphicsAllocation::AllocationType allocationType) {
auto allocation = temporaryAllocations.detachAllocation(requiredSize, requiredPtr, commandStreamReceiver, allocationType);
return allocation;
}
struct ReusableAllocationRequirements {
size_t requiredMinimalSize;
volatile uint32_t *csrTagAddress;
GraphicsAllocation::AllocationType allocationType;
uint32_t contextId;
const void *requiredPtr;
};
AllocationsList::AllocationsList(AllocationUsage allocationUsage)
: allocationUsage(allocationUsage) {}
std::unique_ptr<GraphicsAllocation> AllocationsList::detachAllocation(size_t requiredMinimalSize, const void *requiredPtr, CommandStreamReceiver &commandStreamReceiver, GraphicsAllocation::AllocationType allocationType) {
ReusableAllocationRequirements req;
req.requiredMinimalSize = requiredMinimalSize;
req.csrTagAddress = commandStreamReceiver.getTagAddress();
req.allocationType = allocationType;
req.contextId = commandStreamReceiver.getOsContext().getContextId();
req.requiredPtr = requiredPtr;
GraphicsAllocation *a = nullptr;
GraphicsAllocation *retAlloc = processLocked<AllocationsList, &AllocationsList::detachAllocationImpl>(a, static_cast<void *>(&req));
return std::unique_ptr<GraphicsAllocation>(retAlloc);
}
GraphicsAllocation *AllocationsList::detachAllocationImpl(GraphicsAllocation *, void *data) {
ReusableAllocationRequirements *req = static_cast<ReusableAllocationRequirements *>(data);
auto *curr = head;
while (curr != nullptr) {
if ((req->allocationType == curr->getAllocationType()) &&
(curr->getUnderlyingBufferSize() >= req->requiredMinimalSize) &&
(this->allocationUsage == TEMPORARY_ALLOCATION || *req->csrTagAddress >= curr->getTaskCount(req->contextId)) &&
(req->requiredPtr == nullptr || req->requiredPtr == curr->getUnderlyingBuffer())) {
if (this->allocationUsage == TEMPORARY_ALLOCATION) {
// We may not have proper task count yet, so set notReady to avoid releasing in a different thread
curr->updateTaskCount(CompletionStamp::notReady, req->contextId);
}
return removeOneImpl(curr, nullptr);
}
curr = curr->next;
}
return nullptr;
}
DeviceBitfield InternalAllocationStorage::getDeviceBitfield() const {
return commandStreamReceiver.getOsContext().getDeviceBitfield();
}
} // namespace NEO
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