111 lines
4.9 KiB
C++
111 lines
4.9 KiB
C++
/*
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* Copyright (C) 2021-2025 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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#include "shared/source/command_stream/task_count_helper.h"
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#include "shared/source/device/device.h"
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#include "shared/source/os_interface/os_context.h"
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namespace {
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struct ReusableAllocationRequirements {
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ReusableAllocationRequirements() = delete;
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ReusableAllocationRequirements(NEO::CommandStreamReceiver *csr, const void *requiredPtr, size_t requiredMinimalSize, NEO::AllocationType allocationType, bool forceSystemMemoryFlag)
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: requiredPtr(requiredPtr), requiredMinimalSize(requiredMinimalSize), allocationType(allocationType), forceSystemMemoryFlag(forceSystemMemoryFlag) {
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if (csr) {
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csrTagAddress = csr->getTagAddress();
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contextId = csr->getOsContext().getContextId();
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rootDeviceIndex = csr->getRootDeviceIndex();
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deviceBitfield = csr->getOsContext().getDeviceBitfield();
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tagOffset = csr->getImmWritePostSyncWriteOffset();
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}
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}
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const void *requiredPtr = nullptr;
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size_t requiredMinimalSize = 0;
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volatile TagAddressType *csrTagAddress = nullptr;
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NEO::AllocationType allocationType = NEO::AllocationType::unknown;
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NEO::DeviceBitfield deviceBitfield = 1;
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uint32_t contextId = std::numeric_limits<uint32_t>::max();
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uint32_t rootDeviceIndex = 0;
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uint32_t tagOffset = 0;
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bool forceSystemMemoryFlag = false;
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};
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bool checkTagAddressReady(ReusableAllocationRequirements *requirements, NEO::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->deviceBitfield.count(); 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, requirements->tagOffset);
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}
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return true;
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}
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} // namespace
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namespace NEO {
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AllocationsList::AllocationsList(AllocationUsage allocationUsage)
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: allocationUsage(allocationUsage) {}
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std::unique_ptr<GraphicsAllocation> AllocationsList::detachAllocation(size_t requiredMinimalSize, const void *requiredPtr, CommandStreamReceiver *commandStreamReceiver, AllocationType allocationType) {
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return this->detachAllocation(requiredMinimalSize, requiredPtr, false, commandStreamReceiver, allocationType);
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}
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std::unique_ptr<GraphicsAllocation> AllocationsList::detachAllocation(size_t requiredMinimalSize, const void *requiredPtr, bool forceSystemMemoryFlag, CommandStreamReceiver *commandStreamReceiver, AllocationType allocationType) {
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ReusableAllocationRequirements req(commandStreamReceiver, requiredPtr, requiredMinimalSize, allocationType, forceSystemMemoryFlag);
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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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(curr->storageInfo.systemMemoryForced == req->forceSystemMemoryFlag)) {
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if (req->csrTagAddress == nullptr) {
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return removeOneImpl(curr, nullptr);
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}
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bool usageMatch = (this->allocationUsage == TEMPORARY_ALLOCATION || checkTagAddressReady(req, curr));
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bool ptrMatch = (req->requiredPtr == nullptr || req->requiredPtr == curr->getUnderlyingBuffer());
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bool tileMatch = (req->deviceBitfield == curr->storageInfo.subDeviceBitfield) || (curr->storageInfo.subDeviceBitfield == 0);
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bool placementMatch = (req->rootDeviceIndex == curr->getRootDeviceIndex()) && tileMatch;
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if (usageMatch && ptrMatch && placementMatch) {
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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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tail = nullptr;
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}
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} // namespace NEO
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