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Use fallback in detecting VIA cach line size

pull/838/head
Jeffrey Walton 2019-05-08 19:46:23 -04:00
parent 40e5891635
commit c91813c0b4
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1 changed files with 8 additions and 0 deletions
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8
cpu.cpp
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@ -458,6 +458,14 @@ void DetectX86Features()
CpuId(0xC0000005, 0, cpuid2); CpuId(0xC0000005, 0, cpuid2);
g_cacheLineSize = GETBYTE(cpuid2[2] /*ECX*/, 0); g_cacheLineSize = GETBYTE(cpuid2[2] /*ECX*/, 0);
} }
#if defined(_SC_LEVEL1_DCACHE_LINESIZE)
else
{
int cacheLineSize = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
if (cacheLineSize > 0)
g_cacheLineSize = cacheLineSize;
}
#endif
} }
if (g_cacheLineSize == 0) if (g_cacheLineSize == 0)