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/*
* Copyright (C) 2020-2021 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/os_memory.h"
#include "shared/source/helpers/aligned_memory.h"
namespace NEO {
OSMemory::ReservedCpuAddressRange OSMemory::reserveCpuAddressRange(size_t sizeToReserve, size_t alignment) {
return reserveCpuAddressRange(0, sizeToReserve, alignment);
}
OSMemory::ReservedCpuAddressRange OSMemory::reserveCpuAddressRange(void *baseAddress, size_t sizeToReserve, size_t alignment) {
UNRECOVERABLE_IF(alignment && 0 != (alignment & (alignment - 1)));
ReservedCpuAddressRange reservedCpuAddressRange;
reservedCpuAddressRange.sizeToReserve = sizeToReserve;
reservedCpuAddressRange.actualReservedSize = sizeToReserve + alignment;
reservedCpuAddressRange.originalPtr = this->osReserveCpuAddressRange(baseAddress, reservedCpuAddressRange.actualReservedSize, false);
reservedCpuAddressRange.alignedPtr = alignUp(reservedCpuAddressRange.originalPtr, alignment);
return reservedCpuAddressRange;
}
void OSMemory::releaseCpuAddressRange(const ReservedCpuAddressRange &reservedCpuAddressRange) {
if (reservedCpuAddressRange.originalPtr != nullptr) {
this->osReleaseCpuAddressRange(reservedCpuAddressRange.originalPtr, reservedCpuAddressRange.actualReservedSize);
}
}
} // namespace NEO
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