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Commit 2df7e813 authored by Sabrina Dubroca's avatar Sabrina Dubroca Committed by Herbert Xu
Browse files

crypto: aesni - make AVX2 AES-GCM work with all valid auth_tag_len 



Signed-off-by: default avatarSabrina Dubroca <sd@queasysnail.net>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 27352c45

arch/x86/crypto/aesni-intel_avx-x86_64.S

+24 −7
Original line number Diff line number Diff line
@@ -2804,19 +2804,36 @@ _return_T\@: 
        cmp     $16, %r11

        je      _T_16\@



        cmp     $12, %r11

        je      _T_12\@

        cmp     $8, %r11

        jl      _T_4\@



_T_8\@:

        vmovq   %xmm9, %rax

        mov     %rax, (%r10)

        jmp     _return_T_done\@

_T_12\@:

        vmovq   %xmm9, %rax

        mov     %rax, (%r10)

        add     $8, %r10

        sub     $8, %r11

        vpsrldq $8, %xmm9, %xmm9

        cmp     $0, %r11

        je     _return_T_done\@

_T_4\@:

        vmovd   %xmm9, %eax

        mov     %eax, 8(%r10)

        mov     %eax, (%r10)

        add     $4, %r10

        sub     $4, %r11

        vpsrldq     $4, %xmm9, %xmm9

        cmp     $0, %r11

        je     _return_T_done\@

_T_123\@:

        vmovd     %xmm9, %eax

        cmp     $2, %r11

        jl     _T_1\@

        mov     %ax, (%r10)

        cmp     $2, %r11

        je     _return_T_done\@

        add     $2, %r10

        sar     $16, %eax

_T_1\@:

        mov     %al, (%r10)

        jmp     _return_T_done\@



_T_16\@: