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Automate AES-NI and AVX detection on runtime, make it default on x86-based systems (#1578)

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Rework CPU extensions detection code and build with AES-NI and AVX support by default
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R4SAS 2020-11-15 01:31:20 +03:00 • committed by GitHub
parent 7e874eaa7c
commit 62cd9fffa3
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26 changed files with 208 additions and 237 deletions
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33
libi2pd/CPU.cpp
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@ -27,37 +27,24 @@ namespace cpu
bool aesni = false;
bool avx = false;
void Detect()
void Detect(bool AesSwitch, bool AvxSwitch, bool force)
{
#if defined(__AES__) || defined(__AVX__)
#if defined(__x86_64__) || defined(__i386__)
int info[4];
__cpuid(0, info[0], info[1], info[2], info[3]);
if (info[0] >= 0x00000001) {
__cpuid(0x00000001, info[0], info[1], info[2], info[3]);
#ifdef __AES__
aesni = info[2] & bit_AES; // AESNI
#endif // __AES__
#ifdef __AVX__
avx = info[2] & bit_AVX; // AVX
#endif // __AVX__
if ((info[2] & bit_AES && AesSwitch) || (AesSwitch && force)) {
aesni = true;
}
if ((info[2] & bit_AVX && AvxSwitch) || (AvxSwitch && force)) {
avx = true;
}
}
#endif // defined(__x86_64__) || defined(__i386__)
#endif // defined(__x86_64__) || defined(__i386__)
#ifdef __AES__
if(aesni)
{
LogPrint(eLogInfo, "AESNI enabled");
}
#endif // __AES__
#ifdef __AVX__
if(avx)
{
LogPrint(eLogInfo, "AVX enabled");
}
#endif // __AVX__
#endif // defined(__AES__) || defined(__AVX__)
LogPrint(eLogInfo, "AESNI ", (aesni ? "enabled" : "disabled"));
LogPrint(eLogInfo, "AVX ", (avx ? "enabled" : "disabled"));
}
}
}