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/*
* Copyright (C) 2020-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/execution_environment/root_device_environment.h"
#include "shared/source/helpers/app_resource_helper.h"
#include "shared/source/helpers/basic_math.h"
#include "shared/source/helpers/bit_helpers.h"
#include "shared/source/helpers/gfx_core_helper.h"
#include "shared/source/memory_manager/allocation_properties.h"
#include "shared/source/memory_manager/local_memory_usage.h"
#include "shared/source/memory_manager/memory_manager.h"
#include "shared/source/release_helper/release_helper.h"
#include <bitset>
namespace NEO {
StorageInfo::StorageInfo() = default;
StorageInfo MemoryManager::createStorageInfoFromProperties(const AllocationProperties &properties) {
StorageInfo storageInfo{};
storageInfo.isLockable = GraphicsAllocation::isLockable(properties.allocationType) || (properties.makeDeviceBufferLockable && properties.allocationType == AllocationType::buffer);
if (properties.subDevicesBitfield.count() == 0) {
return storageInfo;
}
const auto *rootDeviceEnv{executionEnvironment.rootDeviceEnvironments[properties.rootDeviceIndex].get()};
const auto deviceCount = GfxCoreHelper::getSubDevicesCount(rootDeviceEnv->getHardwareInfo());
const auto leastOccupiedBank = getLocalMemoryUsageBankSelector(properties.allocationType, properties.rootDeviceIndex)->getLeastOccupiedBank(properties.subDevicesBitfield);
const auto subDevicesMask = rootDeviceEnv->deviceAffinityMask.getGenericSubDevicesMask().to_ulong();
const DeviceBitfield allTilesValue(properties.subDevicesBitfield.count() == 1 ? maxNBitValue(deviceCount) & subDevicesMask : properties.subDevicesBitfield);
DeviceBitfield preferredTile;
if (properties.subDevicesBitfield.count() == 1) {
preferredTile = properties.subDevicesBitfield;
} else {
UNRECOVERABLE_IF(!properties.subDevicesBitfield.test(leastOccupiedBank));
preferredTile.set(leastOccupiedBank);
}
storageInfo.pageTablesVisibility = allTilesValue;
storageInfo.subDeviceBitfield = properties.subDevicesBitfield;
storageInfo.cpuVisibleSegment = GraphicsAllocation::isCpuAccessRequired(properties.allocationType);
AppResourceHelper::copyResourceTagStr(storageInfo.resourceTag, properties.allocationType,
sizeof(storageInfo.resourceTag));
switch (properties.allocationType) {
case AllocationType::constantSurface:
case AllocationType::kernelIsa:
case AllocationType::kernelIsaInternal:
case AllocationType::debugModuleArea: {
auto placeAllocOnMultiTile = (properties.subDevicesBitfield.count() != 1);
if (placeAllocOnMultiTile) {
storageInfo.cloningOfPageTables = false;
storageInfo.tileInstanced = true;
} else {
storageInfo.cloningOfPageTables = true;
storageInfo.tileInstanced = false;
}
} break;
case AllocationType::debugContextSaveArea:
case AllocationType::workPartitionSurface:
storageInfo.cloningOfPageTables = false;
storageInfo.tileInstanced = true;
break;
case AllocationType::privateSurface:
case AllocationType::debugSbaTrackingBuffer:
storageInfo.cloningOfPageTables = false;
if (properties.subDevicesBitfield.count() == 1) {
storageInfo.pageTablesVisibility = preferredTile;
} else {
storageInfo.tileInstanced = true;
}
break;
case AllocationType::commandBuffer:
case AllocationType::internalHeap:
case AllocationType::linearStream:
case AllocationType::syncBuffer:
storageInfo.cloningOfPageTables = properties.flags.multiOsContextCapable;
if (!properties.flags.multiOsContextCapable) {
storageInfo.pageTablesVisibility = preferredTile;
}
break;
case AllocationType::scratchSurface:
case AllocationType::preemption:
case AllocationType::deferredTasksList:
if (properties.flags.multiOsContextCapable) {
storageInfo.cloningOfPageTables = false;
storageInfo.tileInstanced = true;
} else {
storageInfo.pageTablesVisibility = preferredTile;
}
break;
case AllocationType::gpuTimestampDeviceBuffer:
storageInfo.cloningOfPageTables = true;
if (!properties.flags.multiOsContextCapable) {
storageInfo.pageTablesVisibility = preferredTile;
}
break;
case AllocationType::buffer:
case AllocationType::svmGpu: {
auto colouringPolicy = properties.colouringPolicy;
auto granularity = properties.colouringGranularity;
if (debugManager.flags.MultiStoragePolicy.get() != -1) {
colouringPolicy = static_cast<ColouringPolicy>(debugManager.flags.MultiStoragePolicy.get());
}
if (debugManager.flags.MultiStorageGranularity.get() != -1) {
granularity = debugManager.flags.MultiStorageGranularity.get() * MemoryConstants::kiloByte;
}
DEBUG_BREAK_IF(colouringPolicy == ColouringPolicy::deviceCountBased && granularity != MemoryConstants::pageSize64k);
if (this->supportsMultiStorageResources &&
properties.multiStorageResource &&
properties.size >= deviceCount * granularity &&
properties.subDevicesBitfield.count() != 1u) {
storageInfo.multiStorage = true;
storageInfo.colouringPolicy = colouringPolicy;
storageInfo.colouringGranularity = granularity;
}
if (properties.flags.shareable) {
storageInfo.isLockable = false;
}
break;
}
default:
break;
}
storageInfo.localOnlyRequired = getLocalOnlyRequired(properties.allocationType,
rootDeviceEnv->getProductHelper(),
rootDeviceEnv->getReleaseHelper(),
properties.flags.preferCompressed);
storageInfo.needsToBeZeroedAtInit = [](NEO::AllocationType allocType) {
auto out = GraphicsAllocation::isZeroInitRequired(allocType);
auto initWithZerosMask = debugManager.flags.InitAllocWithZeros.get();
if (initWithZerosMask) {
out = isBitSet(initWithZerosMask, static_cast<uint64_t>(allocType) - 1);
}
return out;
}(properties.allocationType);
if (debugManager.flags.ForceMultiTileAllocPlacement.get()) {
UNRECOVERABLE_IF(properties.allocationType == AllocationType::unknown);
if ((1llu << (static_cast<int64_t>(properties.allocationType) - 1)) & debugManager.flags.ForceMultiTileAllocPlacement.get()) {
storageInfo.cloningOfPageTables = false;
storageInfo.tileInstanced = true;
}
}
if (debugManager.flags.ForceSingleTileAllocPlacement.get()) {
UNRECOVERABLE_IF(properties.allocationType == AllocationType::unknown);
if ((1llu << (static_cast<int64_t>(properties.allocationType) - 1)) & debugManager.flags.ForceSingleTileAllocPlacement.get()) {
storageInfo.cloningOfPageTables = true;
storageInfo.tileInstanced = false;
}
}
storageInfo.memoryBanks = computeStorageInfoMemoryBanks(properties, preferredTile, allTilesValue);
return storageInfo;
}
uint32_t StorageInfo::getNumBanks() const {
if (memoryBanks == 0) {
return 1u;
}
return static_cast<uint32_t>(memoryBanks.count());
}
DeviceBitfield MemoryManager::computeStorageInfoMemoryBanks(const AllocationProperties &properties, DeviceBitfield preferredBank, DeviceBitfield allBanks) {
auto forcedMultiStoragePlacement = debugManager.flags.OverrideMultiStoragePlacement.get();
auto subDevicesCount = properties.subDevicesBitfield.count();
const auto deviceCount = GfxCoreHelper::getSubDevicesCount(executionEnvironment.rootDeviceEnvironments[properties.rootDeviceIndex]->getHardwareInfo());
DeviceBitfield memoryBanks{preferredBank};
switch (properties.allocationType) {
case AllocationType::constantSurface:
case AllocationType::kernelIsa:
case AllocationType::kernelIsaInternal:
case AllocationType::debugModuleArea:
memoryBanks = (subDevicesCount == 1 ? preferredBank : allBanks);
break;
case AllocationType::debugContextSaveArea:
case AllocationType::workPartitionSurface:
memoryBanks = allBanks;
break;
case AllocationType::privateSurface:
case AllocationType::debugSbaTrackingBuffer:
memoryBanks = (subDevicesCount == 1 ? preferredBank : allBanks);
break;
case AllocationType::commandBuffer:
case AllocationType::internalHeap:
case AllocationType::linearStream:
memoryBanks = preferredBank;
break;
case AllocationType::scratchSurface:
case AllocationType::preemption:
case AllocationType::deferredTasksList:
memoryBanks = (properties.flags.multiOsContextCapable ? allBanks : preferredBank);
break;
case AllocationType::buffer:
case AllocationType::svmGpu: {
auto granularity = properties.colouringGranularity;
if (debugManager.flags.MultiStorageGranularity.get() != -1) {
granularity = debugManager.flags.MultiStorageGranularity.get() * MemoryConstants::kiloByte;
}
DEBUG_BREAK_IF(properties.colouringPolicy == ColouringPolicy::deviceCountBased && granularity != MemoryConstants::pageSize64k);
if (this->supportsMultiStorageResources &&
properties.multiStorageResource &&
properties.size >= deviceCount * granularity &&
properties.subDevicesBitfield.count() != 1u) {
memoryBanks = (forcedMultiStoragePlacement == -1 ? allBanks : forcedMultiStoragePlacement);
}
break;
}
case AllocationType::unifiedSharedMemory:
memoryBanks = (forcedMultiStoragePlacement == -1 ? allBanks : forcedMultiStoragePlacement);
break;
default:
break;
}
auto forceLocalMemoryForDirectSubmission = true;
switch (debugManager.flags.DirectSubmissionForceLocalMemoryStorageMode.get()) {
case 0:
forceLocalMemoryForDirectSubmission = false;
break;
case 1:
forceLocalMemoryForDirectSubmission = properties.flags.multiOsContextCapable;
break;
default:
break;
}
if (forceLocalMemoryForDirectSubmission) {
if (properties.allocationType == AllocationType::commandBuffer ||
properties.allocationType == AllocationType::ringBuffer ||
properties.allocationType == AllocationType::semaphoreBuffer) {
if (properties.flags.multiOsContextCapable) {
memoryBanks = {};
for (auto bank = 0u; bank < deviceCount; bank++) {
if (allBanks.test(bank)) {
memoryBanks.set(bank);
break;
}
}
}
UNRECOVERABLE_IF(memoryBanks.none());
}
}
if (debugManager.flags.ForceMultiTileAllocPlacement.get()) {
UNRECOVERABLE_IF(properties.allocationType == AllocationType::unknown);
if ((1llu << (static_cast<int64_t>(properties.allocationType) - 1)) & debugManager.flags.ForceMultiTileAllocPlacement.get()) {
memoryBanks = allBanks;
}
}
if (debugManager.flags.ForceSingleTileAllocPlacement.get()) {
UNRECOVERABLE_IF(properties.allocationType == AllocationType::unknown);
if ((1llu << (static_cast<int64_t>(properties.allocationType) - 1)) & debugManager.flags.ForceSingleTileAllocPlacement.get()) {
memoryBanks = preferredBank;
}
}
return memoryBanks;
}
uint32_t StorageInfo::getTotalBanksCnt() const {
return Math::log2(getMemoryBanks()) + 1;
}
} // namespace NEO
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