compute-runtime/runtime/utilities/linux/cpu_info.cpp

51 lines
1.8 KiB
C++

/*
* Copyright (c) 2017, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "runtime/utilities/cpu_info.h"
#include <cpuid.h>
namespace OCLRT {
void cpuidex_linux_wrapper(int *cpuInfo, int functionId, int subfunctionId) {
__cpuid_count(functionId, subfunctionId, cpuInfo[0], cpuInfo[1], cpuInfo[2], cpuInfo[3]);
}
void (*CpuInfo::cpuidexFunc)(int *, int, int) = cpuidex_linux_wrapper;
const CpuInfo CpuInfo::instance;
void CpuInfo::cpuid(
uint32_t cpuInfo[4],
uint32_t functionId) const {
__cpuid_count(functionId, 0, cpuInfo[0], cpuInfo[1], cpuInfo[2], cpuInfo[3]);
}
void CpuInfo::cpuidex(
uint32_t cpuInfo[4],
uint32_t functionId,
uint32_t subfunctionId) const {
cpuidexFunc(reinterpret_cast<int *>(cpuInfo), functionId, subfunctionId);
}
} // namespace OCLRT