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Merge pull request #4609 from yu-chen-surf/develop 

Get the l2 cache size via environment variable on confidential VM
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Martin Kroeker 2024-04-06 19:02:00 +02:00 committed by GitHub
parent fbd42e9e0e 8e39c05efd
commit 3cf57a61d5
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1 changed files with 4 additions and 0 deletions
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kernel/setparam-ref.c
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@ -1248,6 +1248,10 @@ static __inline__ int get_l2_size(void){
int eax, ebx, ecx, edx, l2; int eax, ebx, ecx, edx, l2;
l2 = readenv_atoi("OPENBLAS_L2_SIZE");
if (l2 != 0)
return l2;
cpuid(0x80000006, &eax, &ebx, &ecx, &edx); cpuid(0x80000006, &eax, &ebx, &ecx, &edx);
l2 = BITMASK(ecx, 16, 0xffff); l2 = BITMASK(ecx, 16, 0xffff);