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feat(zebin): Add support for ELF section type SHT_NOBITS

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This commit adds support for parsing SHT_NOBITS zebin's ELF sections
(containing global/constant zero-initialized data).

Related-To: NEO-7196
Signed-off-by: Kacper Nowak <kacper.nowak@intel.com>
This commit is contained in:
Kacper Nowak
2023-01-24 13:16:02 +00:00
committed by Compute-Runtime-Automation
parent 31154dc20b
commit fa03aa9a40
18 changed files with 421 additions and 85 deletions
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1
shared/source/program/program_info.h
View File

@@ -31,6 +31,7 @@ struct ProgramInfo {
struct GlobalSurfaceInfo {
const void *initData = nullptr;
size_t size = 0U;
size_t zeroInitSize = 0U;
};
void prepareLinkerInputStorage();

18
shared/source/program/program_initialization.cpp
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@@ -19,7 +19,7 @@
namespace NEO {
GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAllocManager, NEO::Device &device, size_t size, bool constant,
GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAllocManager, NEO::Device &device, size_t totalSize, size_t zeroInitSize, bool constant,
LinkerInput *const linkerInput, const void *initData) {
bool globalsAreExported = false;
GraphicsAllocation *gpuAllocation = nullptr;
@@ -37,7 +37,7 @@ GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAlloc
subDeviceBitfields.insert({rootDeviceIndex, deviceBitfield});
NEO::SVMAllocsManager::UnifiedMemoryProperties unifiedMemoryProperties(InternalMemoryType::DEVICE_UNIFIED_MEMORY, rootDeviceIndices, subDeviceBitfields);
unifiedMemoryProperties.device = &device;
auto ptr = svmAllocManager->createUnifiedMemoryAllocation(size, unifiedMemoryProperties);
auto ptr = svmAllocManager->createUnifiedMemoryAllocation(totalSize, unifiedMemoryProperties);
DEBUG_BREAK_IF(ptr == nullptr);
if (ptr == nullptr) {
return nullptr;
@@ -49,7 +49,7 @@ GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAlloc
auto allocationType = constant ? AllocationType::CONSTANT_SURFACE : AllocationType::GLOBAL_SURFACE;
gpuAllocation = device.getMemoryManager()->allocateGraphicsMemoryWithProperties({rootDeviceIndex,
true, // allocateMemory
size, allocationType,
totalSize, allocationType,
false, // isMultiStorageAllocation
deviceBitfield});
}
@@ -61,11 +61,13 @@ GraphicsAllocation *allocateGlobalsSurface(NEO::SVMAllocsManager *const svmAlloc
auto &rootDeviceEnvironment = device.getRootDeviceEnvironment();
auto &productHelper = device.getProductHelper();
auto success = MemoryTransferHelper::transferMemoryToAllocation(productHelper.isBlitCopyRequiredForLocalMemory(rootDeviceEnvironment, *gpuAllocation),
device, gpuAllocation, 0, initData, size);
UNRECOVERABLE_IF(!success);
bool isOnlyBssData = (totalSize == zeroInitSize);
if (false == isOnlyBssData) {
auto initSize = totalSize - zeroInitSize;
auto success = MemoryTransferHelper::transferMemoryToAllocation(productHelper.isBlitCopyRequiredForLocalMemory(rootDeviceEnvironment, *gpuAllocation),
device, gpuAllocation, 0, initData, initSize);
UNRECOVERABLE_IF(!success);
}
return gpuAllocation;
}

4
shared/source/program/program_initialization.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (C) 2020-2022 Intel Corporation
* Copyright (C) 2020-2023 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
@@ -17,7 +17,7 @@ class SVMAllocsManager;
struct LinkerInput;
GraphicsAllocation *allocateGlobalsSurface(SVMAllocsManager *const svmAllocManager, Device &device,
size_t size, bool constant,
size_t totalSize, size_t zeroInitSize, bool constant,
LinkerInput *const linkerInput, const void *initData);
} // namespace NEO