40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
/*
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* Copyright (C) 2019-2024 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/os_interface/windows/os_memory_win.h"
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namespace NEO {
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extern OSMemoryWindows::VirtualAllocFcn getVirtualAlloc();
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extern OSMemoryWindows::VirtualFreeFcn getVirtualFree();
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OSMemoryWindows::VirtualAllocFcn OSMemoryWindows::virtualAllocFnc = getVirtualAlloc();
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OSMemoryWindows::VirtualFreeFcn OSMemoryWindows::virtualFreeFnc = getVirtualFree();
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std::unique_ptr<OSMemory> OSMemory::create() {
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return std::make_unique<OSMemoryWindows>();
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}
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void *OSMemoryWindows::osReserveCpuAddressRange(void *baseAddress, size_t sizeToReserve, bool topDownHint) {
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auto flags = MEM_RESERVE | (topDownHint ? MEM_TOP_DOWN : 0);
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return virtualAllocWrapper(baseAddress, sizeToReserve, flags, PAGE_READWRITE);
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}
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void OSMemoryWindows::osReleaseCpuAddressRange(void *reservedCpuAddressRange, size_t size) {
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virtualFreeWrapper(reservedCpuAddressRange, 0, MEM_RELEASE);
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}
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LPVOID OSMemoryWindows::virtualAllocWrapper(LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect) {
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return this->virtualAllocFnc(lpAddress, dwSize, flAllocationType, flProtect);
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}
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BOOL OSMemoryWindows::virtualFreeWrapper(LPVOID lpAddress, SIZE_T dwSize, DWORD dwFreeType) {
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return this->virtualFreeFnc(lpAddress, dwSize, dwFreeType);
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}
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} // namespace NEO
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