diff options
Diffstat (limited to 'linux-x86_64/crypto/cpu-x86_64-asm.S')
| -rw-r--r-- | linux-x86_64/crypto/cpu-x86_64-asm.S | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/linux-x86_64/crypto/cpu-x86_64-asm.S b/linux-x86_64/crypto/cpu-x86_64-asm.S new file mode 100644 index 0000000..9eef154 --- /dev/null +++ b/linux-x86_64/crypto/cpu-x86_64-asm.S @@ -0,0 +1,143 @@ +#if defined(__x86_64__) +.text + +.globl OPENSSL_ia32_cpuid +.hidden OPENSSL_ia32_cpuid +.type OPENSSL_ia32_cpuid,@function +.align 16 +OPENSSL_ia32_cpuid: + + + movq %rdi,%rdi + movq %rbx,%r8 + + xorl %eax,%eax + movl %eax,8(%rdi) + cpuid + movl %eax,%r11d + + xorl %eax,%eax + cmpl $1970169159,%ebx + setne %al + movl %eax,%r9d + cmpl $1231384169,%edx + setne %al + orl %eax,%r9d + cmpl $1818588270,%ecx + setne %al + orl %eax,%r9d + jz .Lintel + + cmpl $1752462657,%ebx + setne %al + movl %eax,%r10d + cmpl $1769238117,%edx + setne %al + orl %eax,%r10d + cmpl $1145913699,%ecx + setne %al + orl %eax,%r10d + jnz .Lintel + + + + + movl $2147483648,%eax + cpuid + + + cmpl $2147483649,%eax + jb .Lintel + movl %eax,%r10d + movl $2147483649,%eax + cpuid + + + orl %ecx,%r9d + andl $2049,%r9d + + cmpl $2147483656,%r10d + jb .Lintel + + movl $2147483656,%eax + cpuid + + movzbq %cl,%r10 + incq %r10 + + movl $1,%eax + cpuid + + btl $28,%edx + jnc .Lgeneric + shrl $16,%ebx + cmpb %r10b,%bl + ja .Lgeneric + andl $4026531839,%edx + jmp .Lgeneric + +.Lintel: + cmpl $4,%r11d + movl $-1,%r10d + jb .Lnocacheinfo + + movl $4,%eax + movl $0,%ecx + cpuid + movl %eax,%r10d + shrl $14,%r10d + andl $4095,%r10d + + cmpl $7,%r11d + jb .Lnocacheinfo + + movl $7,%eax + xorl %ecx,%ecx + cpuid + movl %ebx,8(%rdi) + +.Lnocacheinfo: + movl $1,%eax + cpuid + + andl $3220176895,%edx + cmpl $0,%r9d + jne .Lnotintel + orl $1073741824,%edx +.Lnotintel: + btl $28,%edx + jnc .Lgeneric + andl $4026531839,%edx + cmpl $0,%r10d + je .Lgeneric + + orl $268435456,%edx + shrl $16,%ebx + cmpb $1,%bl + ja .Lgeneric + andl $4026531839,%edx +.Lgeneric: + andl $2048,%r9d + andl $4294965247,%ecx + orl %ecx,%r9d + + movl %edx,%r10d + btl $27,%r9d + jnc .Lclear_avx + xorl %ecx,%ecx +.byte 0x0f,0x01,0xd0 + andl $6,%eax + cmpl $6,%eax + je .Ldone +.Lclear_avx: + movl $4026525695,%eax + andl %eax,%r9d + andl $4294967263,8(%rdi) +.Ldone: + movl %r9d,4(%rdi) + movl %r10d,0(%rdi) + movq %r8,%rbx + .byte 0xf3,0xc3 +.size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid + +#endif |