mirror of
https://github.com/libretro/ppsspp.git
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118 lines
2.6 KiB
C++
118 lines
2.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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// Detect the cpu, so we'll know which optimizations to use
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#pragma once
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#include "ppsspp_config.h"
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#include <string>
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enum CPUVendor {
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VENDOR_INTEL = 0,
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VENDOR_AMD = 1,
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VENDOR_ARM = 2,
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VENDOR_OTHER = 3,
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};
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struct CPUInfo {
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CPUVendor vendor;
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// Misc
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char cpu_string[0x21];
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char brand_string[0x41];
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bool OS64bit;
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bool CPU64bit;
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bool Mode64bit;
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bool HTT;
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int num_cores;
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int logical_cpu_count;
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bool bAtom;
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bool bPOPCNT;
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bool bLAHFSAHF64;
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bool bLongMode;
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bool bMOVBE;
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bool bFXSR;
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bool bLZCNT;
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bool bBMI1;
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bool bBMI2;
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bool bXOP;
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bool bRTM;
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// x86 : SIMD 128 bit
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bool bSSE;
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bool bSSE2;
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bool bSSE3;
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bool bSSSE3;
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bool bSSE4_1;
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bool bSSE4_2;
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bool bSSE4A;
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bool bAES;
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bool bSHA;
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// x86 : SIMD 256 bit
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bool bAVX;
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bool bAVX2;
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bool bFMA3;
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bool bFMA4;
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// ARM specific CPUInfo
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bool bSwp;
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bool bHalf;
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bool bThumb;
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bool bFastMult;
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bool bVFP;
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bool bEDSP;
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bool bThumbEE;
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bool bNEON;
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bool bVFPv3;
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bool bTLS;
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bool bVFPv4;
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bool bIDIVa;
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bool bIDIVt;
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// ARMv8 specific
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bool bFP;
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bool bASIMD;
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// MIPS specific
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bool bXBurst1;
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bool bXBurst2;
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// Quirks
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struct {
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// Samsung Galaxy S7 devices (Exynos 8890) have a big.LITTLE configuration where the cacheline size differs between big and LITTLE.
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// GCC's cache clearing function would detect the cacheline size on one and keep it for later. When clearing
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// with the wrong cacheline size on the other, that's an issue. In case we want to do something different in this
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// situation in the future, let's keep this as a quirk, but our current code won't detect it reliably
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// if it happens on new archs. We now use better clearing code on ARM64 that doesn't have this issue.
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bool bExynos8890DifferingCachelineSizes;
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} sQuirks;
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// Call Detect()
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explicit CPUInfo();
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// Turn the cpu info into a string we can show
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std::string Summarize();
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private:
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// Detects the various cpu features
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void Detect();
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};
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extern CPUInfo cpu_info;
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