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/*
* Copyright (C) 2018-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/helpers/gfx_core_helper.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/helpers/constants.h"
#include "shared/source/helpers/hw_info.h"
#include "shared/source/os_interface/product_helper.h"
#include <algorithm>
namespace NEO {
GfxCoreHelperCreateFunctionType gfxCoreHelperFactory[IGFX_MAX_CORE] = {};
std::unique_ptr<GfxCoreHelper> GfxCoreHelper::create(const GFXCORE_FAMILY gfxCoreFamily) {
auto createFunction = gfxCoreHelperFactory[gfxCoreFamily];
if (createFunction == nullptr) {
return nullptr;
}
auto gfxCoreHelper = createFunction();
return gfxCoreHelper;
}
bool GfxCoreHelper::compressedBuffersSupported(const HardwareInfo &hwInfo) {
if (debugManager.flags.RenderCompressedBuffersEnabled.get() != -1) {
return !!debugManager.flags.RenderCompressedBuffersEnabled.get();
}
return hwInfo.capabilityTable.ftrRenderCompressedBuffers;
}
bool GfxCoreHelper::compressedImagesSupported(const HardwareInfo &hwInfo) {
if (debugManager.flags.RenderCompressedImagesEnabled.get() != -1) {
return !!debugManager.flags.RenderCompressedImagesEnabled.get();
}
return hwInfo.capabilityTable.ftrRenderCompressedImages;
}
bool GfxCoreHelper::cacheFlushAfterWalkerSupported(const HardwareInfo &hwInfo) {
int32_t dbgFlag = debugManager.flags.EnableCacheFlushAfterWalker.get();
if (dbgFlag == 1) {
return true;
} else if (dbgFlag == 0) {
return false;
}
return hwInfo.capabilityTable.supportCacheFlushAfterWalker;
}
uint32_t GfxCoreHelper::getMaxThreadsForVfe(const HardwareInfo &hwInfo) {
uint32_t threadsPerEU = hwInfo.gtSystemInfo.NumThreadsPerEu + hwInfo.capabilityTable.extraQuantityThreadsPerEU;
auto maxHwThreadsCapable = hwInfo.gtSystemInfo.EUCount * threadsPerEU;
auto maxHwThreadsReturned = maxHwThreadsCapable;
if (debugManager.flags.MaxHwThreadsPercent.get() != 0) {
maxHwThreadsReturned = int(maxHwThreadsCapable * (debugManager.flags.MaxHwThreadsPercent.get() / 100.0f));
}
if (debugManager.flags.MinHwThreadsUnoccupied.get() != 0) {
maxHwThreadsReturned = std::min(maxHwThreadsReturned, maxHwThreadsCapable - debugManager.flags.MinHwThreadsUnoccupied.get());
}
return maxHwThreadsReturned;
}
uint32_t GfxCoreHelper::getSubDevicesCount(const HardwareInfo *pHwInfo) {
if (debugManager.flags.CreateMultipleSubDevices.get() > 0) {
return debugManager.flags.CreateMultipleSubDevices.get();
} else if (pHwInfo->gtSystemInfo.MultiTileArchInfo.IsValid && pHwInfo->gtSystemInfo.MultiTileArchInfo.TileCount > 0u) {
return pHwInfo->gtSystemInfo.MultiTileArchInfo.TileCount;
} else {
return 1u;
}
}
uint32_t GfxCoreHelper::getHighestEnabledSlice(const HardwareInfo &hwInfo) {
uint32_t highestEnabledSlice = 1;
if (!hwInfo.gtSystemInfo.IsDynamicallyPopulated) {
return hwInfo.gtSystemInfo.MaxSlicesSupported;
}
for (int highestSlice = GT_MAX_SLICE - 1; highestSlice >= 0; highestSlice--) {
if (hwInfo.gtSystemInfo.SliceInfo[highestSlice].Enabled) {
highestEnabledSlice = highestSlice + 1;
break;
}
}
return highestEnabledSlice;
}
uint32_t getHighestEnabledSubSlice(const HardwareInfo &hwInfo) {
uint32_t numSubSlicesPerSlice = hwInfo.gtSystemInfo.MaxSubSlicesSupported / hwInfo.gtSystemInfo.MaxSlicesSupported;
uint32_t highestEnabledSliceIdx = GfxCoreHelper::getHighestEnabledSlice(hwInfo) - 1;
uint32_t highestSubSlice = (highestEnabledSliceIdx + 1) * numSubSlicesPerSlice;
for (int32_t subSliceId = GT_MAX_SUBSLICE_PER_SLICE - 1; subSliceId >= 0; subSliceId--) {
if (hwInfo.gtSystemInfo.SliceInfo[highestEnabledSliceIdx].SubSliceInfo[subSliceId].Enabled) {
return highestEnabledSliceIdx * numSubSlicesPerSlice + subSliceId + 1;
}
}
return highestSubSlice;
}
uint32_t GfxCoreHelper::getHighestEnabledDualSubSlice(const HardwareInfo &hwInfo) {
uint32_t maxDualSubSlicesSupported = hwInfo.gtSystemInfo.MaxDualSubSlicesSupported;
if (!hwInfo.gtSystemInfo.IsDynamicallyPopulated) {
return maxDualSubSlicesSupported;
}
if (maxDualSubSlicesSupported == 0) {
return getHighestEnabledSubSlice(hwInfo);
}
uint32_t numDssPerSlice = maxDualSubSlicesSupported / hwInfo.gtSystemInfo.MaxSlicesSupported;
uint32_t highestEnabledSliceIdx = getHighestEnabledSlice(hwInfo) - 1;
uint32_t highestDualSubSlice = (highestEnabledSliceIdx + 1) * numDssPerSlice;
for (int32_t dssID = GT_MAX_DUALSUBSLICE_PER_SLICE - 1; dssID >= 0; dssID--) {
if (hwInfo.gtSystemInfo.SliceInfo[highestEnabledSliceIdx].DSSInfo[dssID].Enabled) {
return (highestEnabledSliceIdx * numDssPerSlice) + dssID + 1;
}
}
return highestDualSubSlice;
}
bool GfxCoreHelper::isWorkaroundRequired(uint32_t lowestSteppingWithBug, uint32_t steppingWithFix, const HardwareInfo &hwInfo, const ProductHelper &productHelper) {
auto lowestHwRevIdWithBug = productHelper.getHwRevIdFromStepping(lowestSteppingWithBug, hwInfo);
auto hwRevIdWithFix = productHelper.getHwRevIdFromStepping(steppingWithFix, hwInfo);
if ((lowestHwRevIdWithBug == CommonConstants::invalidStepping) || (hwRevIdWithFix == CommonConstants::invalidStepping)) {
return false;
}
return (lowestHwRevIdWithBug <= hwInfo.platform.usRevId && hwInfo.platform.usRevId < hwRevIdWithFix);
}
} // namespace NEO
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