93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
/***
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Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: CpuInfo.cpp
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Date: 2021-6-12
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Author: Reece
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "HWInfo.hpp"
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#include "CpuInfo.hpp"
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#include "CpuId.hpp"
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#if defined(AURORA_IS_POSIX_DERIVED)
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#include <stdlib.h>
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#include <sys/sysinfo.h>
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#endif
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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#include "CpuInfo.NT.hpp"
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#endif
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#if defined(AURORA_IS_BSD_DERIVED)
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#include "CpuInfo.BSD.hpp"
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#endif
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#if defined(AURORA_IS_LINUX_DERIVED)
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#include "CpuInfo.Linux.hpp"
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#endif
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namespace Aurora::HWInfo
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{
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static void SetCpuTopology()
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{
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#if defined(AURORA_IS_MODERNNT_DERIVED)
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SetCpuTopologyNT();
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#elif defined(AURORA_IS_BSD_DERIVED)
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SetCpuTopologyBSD();
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#elif defined(AURORA_IS_LINUX_DERIVED)
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SetCpuTopologyLinux();
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#elif defined(AURORA_IS_POSIX_DERIVED)
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gCpuInfo.socket = 1;
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gCpuInfo.cores = 1;
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gCpuInfo.threads = sysconf(_SC_NPROCESSORS_ONLN);
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#endif
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}
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static void SetFakeTopologyIfMissing()
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{
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if (gCpuInfo.threadTopology.size() || gCpuInfo.serverTopology.size())
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{
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return;
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}
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bool fakeMtHalf = (gCpuInfo.threads & 1) == 0;
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gCpuInfo.maskMTHalf = fakeMtHalf;
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if (fakeMtHalf)
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{
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for (int i = 0; i < gCpuInfo.threads / 2; i++)
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{
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AuUInt64 shortMask {AuUInt64(1) << AuUInt64(i)}, shortMask2 {AuUInt64(1) << AuUInt64(i + gCpuInfo.threads / 2)};
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CpuBitId mask;
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mask.lower = shortMask | shortMask2;
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gCpuInfo.serverTopology.push_back(mask);
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gCpuInfo.threadTopology.push_back(shortMask);
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}
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}
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else
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{
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for (int i = 0; i < gCpuInfo.threads; i++)
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{
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AuUInt64 shortMask {AuUInt64(1) << AuUInt64(i)};
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CpuBitId mask;
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mask.lower = shortMask;
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gCpuInfo.serverTopology.push_back(mask);
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gCpuInfo.threadTopology.push_back(shortMask);
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}
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}
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}
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void InitCpuInfo()
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{
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gCpuInfo.maskMTContig = false;
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gCpuInfo.maskMTHalf = false;
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gCpuInfo.cpuArch = Aurora::Build::kCurrentArchitecture;
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SetCpuId();
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SetCpuTopology();
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SetFakeTopologyIfMissing();
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}
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}
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