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