mirror of
https://github.com/intel/compute-runtime.git
synced 2025-12-28 00:03:14 +08:00
165d1e4e55
[2/n] - OsAgnosticMemoryManager Related-To: NEO-2877 Change-Id: I887126362381ac960608a2150fae211631d3cd5b Signed-off-by: Venevtsev, Igor <igor.venevtsev@intel.com>
24 lines
558 B
C++
24 lines
558 B
C++
/*
|
|
* Copyright (C) 2019 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
*/
|
|
|
|
#include "runtime/os_interface/os_memory.h"
|
|
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
|
|
namespace NEO {
|
|
|
|
void *OSMemory::reserveCpuAddressRange(size_t sizeToReserve) {
|
|
return mmap(0, sizeToReserve, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_HUGETLB, open("/dev/null", O_RDONLY), 0);
|
|
}
|
|
|
|
void OSMemory::releaseCpuAddressRange(void *reservedCpuAddressRange, size_t reservedSize) {
|
|
munmap(reservedCpuAddressRange, reservedSize);
|
|
}
|
|
|
|
} // namespace NEO
|