89 lines
3.5 KiB
C++
89 lines
3.5 KiB
C++
/*
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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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#include "shared/source/memory_manager/allocations_list.h"
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#include "shared/source/command_stream/command_stream_receiver.h"
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namespace NEO {
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struct ReusableAllocationRequirements {
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const void *requiredPtr;
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size_t requiredMinimalSize;
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volatile uint32_t *csrTagAddress;
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GraphicsAllocation::AllocationType allocationType;
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uint32_t contextId;
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uint32_t activeTileCount;
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};
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AllocationsList::AllocationsList(AllocationUsage allocationUsage)
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: allocationUsage(allocationUsage) {}
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AllocationsList::AllocationsList()
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: allocationUsage(REUSABLE_ALLOCATION) {}
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std::unique_ptr<GraphicsAllocation> AllocationsList::detachAllocation(size_t requiredMinimalSize, const void *requiredPtr, CommandStreamReceiver *commandStreamReceiver, GraphicsAllocation::AllocationType allocationType) {
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ReusableAllocationRequirements req;
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req.requiredMinimalSize = requiredMinimalSize;
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req.csrTagAddress = (commandStreamReceiver == nullptr) ? nullptr : commandStreamReceiver->getTagAddress();
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req.allocationType = allocationType;
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req.contextId = (commandStreamReceiver == nullptr) ? UINT32_MAX : commandStreamReceiver->getOsContext().getContextId();
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req.requiredPtr = requiredPtr;
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req.activeTileCount = (commandStreamReceiver == nullptr) ? 1u : commandStreamReceiver->getActivePartitions();
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GraphicsAllocation *a = nullptr;
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GraphicsAllocation *retAlloc = processLocked<AllocationsList, &AllocationsList::detachAllocationImpl>(a, static_cast<void *>(&req));
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return std::unique_ptr<GraphicsAllocation>(retAlloc);
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}
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GraphicsAllocation *AllocationsList::detachAllocationImpl(GraphicsAllocation *, void *data) {
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ReusableAllocationRequirements *req = static_cast<ReusableAllocationRequirements *>(data);
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auto *curr = head;
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while (curr != nullptr) {
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if ((req->allocationType == curr->getAllocationType()) &&
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(curr->getUnderlyingBufferSize() >= req->requiredMinimalSize)) {
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if (req->csrTagAddress == nullptr) {
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return removeOneImpl(curr, nullptr);
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}
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if ((this->allocationUsage == TEMPORARY_ALLOCATION || checkTagAddressReady(req, curr)) &&
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(req->requiredPtr == nullptr || req->requiredPtr == curr->getUnderlyingBuffer())) {
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if (this->allocationUsage == TEMPORARY_ALLOCATION) {
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// We may not have proper task count yet, so set notReady to avoid releasing in a different thread
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curr->updateTaskCount(CompletionStamp::notReady, req->contextId);
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}
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return removeOneImpl(curr, nullptr);
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}
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}
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curr = curr->next;
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}
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return nullptr;
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}
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void AllocationsList::freeAllGraphicsAllocations(Device *neoDevice) {
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auto *curr = head;
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while (curr != nullptr) {
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auto currNext = curr->next;
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neoDevice->getMemoryManager()->freeGraphicsMemory(curr);
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curr = currNext;
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}
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head = nullptr;
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}
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bool AllocationsList::checkTagAddressReady(ReusableAllocationRequirements *requirements, GraphicsAllocation *gfxAllocation) {
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auto tagAddress = requirements->csrTagAddress;
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auto taskCount = gfxAllocation->getTaskCount(requirements->contextId);
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for (uint32_t count = 0; count < requirements->activeTileCount; count++) {
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if (*tagAddress < taskCount) {
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return false;
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}
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tagAddress = ptrOffset(tagAddress, CommonConstants::partitionAddressOffset);
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}
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return true;
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}
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} // namespace NEO
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