68 lines
2.9 KiB
C++
68 lines
2.9 KiB
C++
/*
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* Copyright (C) 2020 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 "program_initialization.h"
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#include "shared/source/compiler_interface/linker.h"
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#include "shared/source/device/device.h"
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#include "shared/source/helpers/blit_commands_helper.h"
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#include "shared/source/helpers/hw_helper.h"
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#include "shared/source/helpers/string.h"
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#include "shared/source/memory_manager/memory_manager.h"
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#include "shared/source/memory_manager/unified_memory_manager.h"
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#include "shared/source/program/program_info.h"
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namespace NEO {
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GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAllocManager, NEO::Device &device, size_t size, bool constant,
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LinkerInput *const linkerInput, const void *initData) {
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bool globalsAreExported = false;
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GraphicsAllocation *gpuAllocation = nullptr;
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if (linkerInput != nullptr) {
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globalsAreExported = constant ? linkerInput->getTraits().exportsGlobalConstants : linkerInput->getTraits().exportsGlobalVariables;
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}
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if (globalsAreExported && (svmAllocManager != nullptr)) {
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NEO::SVMAllocsManager::SvmAllocationProperties svmProps = {};
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svmProps.coherent = false;
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svmProps.readOnly = constant;
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svmProps.hostPtrReadOnly = constant;
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auto ptr = svmAllocManager->createSVMAlloc(device.getRootDeviceIndex(), size, svmProps, device.getDeviceBitfield());
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DEBUG_BREAK_IF(ptr == nullptr);
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if (ptr == nullptr) {
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return nullptr;
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}
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auto svmAlloc = svmAllocManager->getSVMAlloc(ptr);
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UNRECOVERABLE_IF(svmAlloc == nullptr);
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gpuAllocation = svmAlloc->gpuAllocations.getGraphicsAllocation(device.getRootDeviceIndex());
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} else {
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auto allocationType = constant ? GraphicsAllocation::AllocationType::CONSTANT_SURFACE : GraphicsAllocation::AllocationType::GLOBAL_SURFACE;
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gpuAllocation = device.getMemoryManager()->allocateGraphicsMemoryWithProperties({device.getRootDeviceIndex(),
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true, // allocateMemory
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size, allocationType,
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false, // isMultiStorageAllocation
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device.getDeviceBitfield()});
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}
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if (!gpuAllocation) {
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return nullptr;
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}
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auto &hwInfo = device.getHardwareInfo();
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auto &helper = HwHelper::get(hwInfo.platform.eRenderCoreFamily);
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auto success = MemoryTransferHelper::transferMemoryToAllocation(helper.isBlitCopyRequiredForLocalMemory(hwInfo, *gpuAllocation),
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device, gpuAllocation, 0, initData, size);
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UNRECOVERABLE_IF(!success);
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return gpuAllocation;
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}
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} // namespace NEO
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