Files
compute-runtime/shared/source/os_interface/os_memory.cpp
Igor Venevtsev aa7bd6447d Allow zero alignment in OSMemory::reserveCpuAddressRange()
Related-To: NEO-4525

Change-Id: I19bcd37c70c413c7726f1cd1ba5c29b5d80dfb42
Signed-off-by: Igor Venevtsev <igor.venevtsev@intel.com>
2020-05-29 16:42:58 +02:00

37 lines
1.3 KiB
C++

/*
* Copyright (C) 2020 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.actualReservedSize = sizeToReserve + alignment;
reservedCpuAddressRange.originalPtr = this->osReserveCpuAddressRange(baseAddress, reservedCpuAddressRange.actualReservedSize);
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