diff options
Diffstat (limited to 'crypto/x86cpuid.pl')
| -rw-r--r-- | crypto/x86cpuid.pl | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/crypto/x86cpuid.pl b/crypto/x86cpuid.pl index 597b7a51a7..3b6c469d08 100644 --- a/crypto/x86cpuid.pl +++ b/crypto/x86cpuid.pl @@ -22,6 +22,8 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } &xor ("eax","eax"); &bt ("ecx",21); &jnc (&label("nocpuid")); + &mov ("esi",&wparam(0)); + &mov (&DWP(8,"esi"),"eax"); # clear 3rd word &cpuid (); &mov ("edi","eax"); # max value for standard query level @@ -89,6 +91,15 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } &shr ("edi",14); &and ("edi",0xfff); # number of cores -1 per L1D + &cmp ("edi",7); + &jb (&label("nocacheinfo")); + + &mov ("esi",&wparam(0)); + &mov ("eax",7); + &xor ("ecx","ecx"); + &cpuid (); + &mov (&DWP(8,"esi"),"ebx"); + &set_label("nocacheinfo"); &mov ("eax",1); &cpuid (); @@ -133,6 +144,8 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); } &and ("esi",0xfeffffff); # clear FXSR &set_label("clear_avx"); &and ("ebp",0xefffe7ff); # clear AVX, FMA and AMD XOP bits + &mov ("edi",&wparam(0)); + &and (&DWP(8,"edi"),0xffffffdf); # clear AVX2 &set_label("done"); &mov ("eax","esi"); &mov ("edx","ebp"); |