2 # Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
10 # ====================================================================
11 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
12 # project. The module is, however, dual licensed under OpenSSL and
13 # CRYPTOGAMS licenses depending on where you obtain it. For further
14 # details see http://www.openssl.org/~appro/cryptogams/.
15 # ====================================================================
19 # The module implements "4-bit" GCM GHASH function and underlying
20 # single multiplication operation in GF(2^128). "4-bit" means that
21 # it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
22 # function features so called "528B" variant utilizing additional
23 # 256+16 bytes of per-key storage [+512 bytes shared table].
24 # Performance results are for this streamed GHASH subroutine and are
25 # expressed in cycles per processed byte, less is better:
27 # gcc 3.4.x(*) assembler
30 # Opteron 19.3 7.7 +150%
31 # Core2 17.8 8.1(**) +120%
33 # VIA Nano 21.8 10.1 +115%
35 # (*) comparison is not completely fair, because C results are
36 # for vanilla "256B" implementation, while assembler results
38 # (**) it's mystery [to me] why Core2 result is not same as for
43 # Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
44 # See ghash-x86.pl for background information and details about coding
47 # Special thanks to David Woodhouse <dwmw2@infradead.org> for
48 # providing access to a Westmere-based system on behalf of Intel
49 # Open Source Technology Centre.
53 # Overhaul: aggregate Karatsuba post-processing, improve ILP in
54 # reduction_alg9, increase reduction aggregate factor to 4x. As for
55 # the latter. ghash-x86.pl discusses that it makes lesser sense to
56 # increase aggregate factor. Then why increase here? Critical path
57 # consists of 3 independent pclmulqdq instructions, Karatsuba post-
58 # processing and reduction. "On top" of this we lay down aggregated
59 # multiplication operations, triplets of independent pclmulqdq's. As
60 # issue rate for pclmulqdq is limited, it makes lesser sense to
61 # aggregate more multiplications than it takes to perform remaining
62 # non-multiplication operations. 2x is near-optimal coefficient for
63 # contemporary Intel CPUs (therefore modest improvement coefficient),
64 # but not for Bulldozer. Latter is because logical SIMD operations
65 # are twice as slow in comparison to Intel, so that critical path is
66 # longer. A CPU with higher pclmulqdq issue rate would also benefit
67 # from higher aggregate factor...
70 # Sandy Bridge 1.80(+8%)
71 # Ivy Bridge 1.80(+7%)
72 # Haswell 0.55(+93%) (if system doesn't support AVX)
73 # Broadwell 0.45(+110%)(if system doesn't support AVX)
74 # Skylake 0.44(+110%)(if system doesn't support AVX)
75 # Bulldozer 1.49(+27%)
76 # Silvermont 2.88(+13%)
80 # ... 8x aggregate factor AVX code path is using reduction algorithm
81 # suggested by Shay Gueron[1]. Even though contemporary AVX-capable
82 # CPUs such as Sandy and Ivy Bridge can execute it, the code performs
83 # sub-optimally in comparison to above mentioned version. But thanks
84 # to Ilya Albrekht and Max Locktyukhin of Intel Corp. we knew that
85 # it performs in 0.41 cycles per byte on Haswell processor, in
86 # 0.29 on Broadwell, and in 0.36 on Skylake.
88 # [1] http://rt.openssl.org/Ticket/Display.html?id=2900&user=guest&pass=guest
92 if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
94 $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
96 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
97 ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
98 ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
99 die "can't locate x86_64-xlate.pl";
101 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
102 =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
103 $avx = ($1>=2.20) + ($1>=2.22);
106 if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
107 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/) {
108 $avx = ($1>=2.09) + ($1>=2.10);
111 if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
112 `ml64 2>&1` =~ /Version ([0-9]+)\./) {
113 $avx = ($1>=10) + ($1>=11);
116 if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9]\.[0-9]+)/) {
117 $avx = ($2>=3.0) + ($2>3.0);
120 open OUT,"| \"$^X\" $xlate $flavour $output";
125 # common register layout
136 # per-function register layout
140 sub LB() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/ or
141 $r =~ s/%[er]([sd]i)/%\1l/ or
142 $r =~ s/%[er](bp)/%\1l/ or
143 $r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; }
145 sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
146 { my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
148 $arg = "\$$arg" if ($arg*1 eq $arg);
149 $code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
160 mov `&LB("$Zlo")`,`&LB("$nlo")`
161 mov `&LB("$Zlo")`,`&LB("$nhi")`
162 shl \$4,`&LB("$nlo")`
164 mov 8($Htbl,$nlo),$Zlo
165 mov ($Htbl,$nlo),$Zhi
166 and \$0xf0,`&LB("$nhi")`
175 mov ($inp,$cnt),`&LB("$nlo")`
177 xor 8($Htbl,$nhi),$Zlo
179 xor ($Htbl,$nhi),$Zhi
180 mov `&LB("$nlo")`,`&LB("$nhi")`
181 xor ($rem_4bit,$rem,8),$Zhi
183 shl \$4,`&LB("$nlo")`
192 xor 8($Htbl,$nlo),$Zlo
194 xor ($Htbl,$nlo),$Zhi
195 and \$0xf0,`&LB("$nhi")`
196 xor ($rem_4bit,$rem,8),$Zhi
207 xor 8($Htbl,$nlo),$Zlo
209 xor ($Htbl,$nlo),$Zhi
210 and \$0xf0,`&LB("$nhi")`
211 xor ($rem_4bit,$rem,8),$Zhi
219 xor 8($Htbl,$nhi),$Zlo
221 xor ($Htbl,$nhi),$Zhi
223 xor ($rem_4bit,$rem,8),$Zhi
232 .extern OPENSSL_ia32cap_P
234 .globl gcm_gmult_4bit
235 .type gcm_gmult_4bit,\@function,2
239 push %rbp # %rbp and %r12 are pushed exclusively in
240 push %r12 # order to reuse Win64 exception handler...
244 lea .Lrem_4bit(%rip),$rem_4bit
255 .size gcm_gmult_4bit,.-gcm_gmult_4bit
258 # per-function register layout
264 .globl gcm_ghash_4bit
265 .type gcm_ghash_4bit,\@function,4
276 mov $inp,%r14 # reassign couple of args
282 my @nhi=("%ebx","%ecx");
283 my @rem=("%r12","%r13");
286 &sub ($Htbl,-128); # size optimization
287 &lea ($Hshr4,"16+128(%rsp)");
288 { my @lo =($nlo,$nhi);
292 for ($i=0,$j=-2;$i<18;$i++,$j++) {
293 &mov ("$j(%rsp)",&LB($dat)) if ($i>1);
294 &or ($lo[0],$tmp) if ($i>1);
295 &mov (&LB($dat),&LB($lo[1])) if ($i>0 && $i<17);
296 &shr ($lo[1],4) if ($i>0 && $i<17);
297 &mov ($tmp,$hi[1]) if ($i>0 && $i<17);
298 &shr ($hi[1],4) if ($i>0 && $i<17);
299 &mov ("8*$j($Hshr4)",$hi[0]) if ($i>1);
300 &mov ($hi[0],"16*$i+0-128($Htbl)") if ($i<16);
301 &shl (&LB($dat),4) if ($i>0 && $i<17);
302 &mov ("8*$j-128($Hshr4)",$lo[0]) if ($i>1);
303 &mov ($lo[0],"16*$i+8-128($Htbl)") if ($i<16);
304 &shl ($tmp,60) if ($i>0 && $i<17);
306 push (@lo,shift(@lo));
307 push (@hi,shift(@hi));
311 &mov ($Zlo,"8($Xi)");
312 &mov ($Zhi,"0($Xi)");
313 &add ($len,$inp); # pointer to the end of data
314 &lea ($rem_8bit,".Lrem_8bit(%rip)");
315 &jmp (".Louter_loop");
317 $code.=".align 16\n.Louter_loop:\n";
318 &xor ($Zhi,"($inp)");
319 &mov ("%rdx","8($inp)");
320 &lea ($inp,"16($inp)");
323 &mov ("8($Xi)","%rdx");
328 &mov (&LB($nlo),&LB($dat));
329 &movz ($nhi[0],&LB($dat));
333 for ($j=11,$i=0;$i<15;$i++) {
335 &xor ($Zlo,"8($Htbl,$nlo)") if ($i>0);
336 &xor ($Zhi,"($Htbl,$nlo)") if ($i>0);
337 &mov ($Zlo,"8($Htbl,$nlo)") if ($i==0);
338 &mov ($Zhi,"($Htbl,$nlo)") if ($i==0);
340 &mov (&LB($nlo),&LB($dat));
341 &xor ($Zlo,$tmp) if ($i>0);
342 &movzw ($rem[1],"($rem_8bit,$rem[1],2)") if ($i>0);
344 &movz ($nhi[1],&LB($dat));
346 &movzb ($rem[0],"(%rsp,$nhi[0])");
348 &shr ($nhi[1],4) if ($i<14);
349 &and ($nhi[1],0xf0) if ($i==14);
350 &shl ($rem[1],48) if ($i>0);
354 &xor ($Zhi,$rem[1]) if ($i>0);
357 &movz ($rem[0],&LB($rem[0]));
358 &mov ($dat,"$j($Xi)") if (--$j%4==0);
361 &xor ($Zlo,"-128($Hshr4,$nhi[0],8)");
363 &xor ($Zhi,"($Hshr4,$nhi[0],8)");
365 unshift (@nhi,pop(@nhi)); # "rotate" registers
366 unshift (@rem,pop(@rem));
368 &movzw ($rem[1],"($rem_8bit,$rem[1],2)");
369 &xor ($Zlo,"8($Htbl,$nlo)");
370 &xor ($Zhi,"($Htbl,$nlo)");
376 &movz ($rem[0],&LB($Zlo));
380 &shl (&LB($rem[0]),4);
383 &xor ($Zlo,"8($Htbl,$nhi[0])");
384 &movzw ($rem[0],"($rem_8bit,$rem[0],2)");
387 &xor ($Zhi,"($Htbl,$nhi[0])");
396 &jb (".Louter_loop");
412 .size gcm_ghash_4bit,.-gcm_ghash_4bit
415 ######################################################################
418 @_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
419 ("%rdi","%rsi","%rdx","%rcx"); # Unix order
421 ($Xi,$Xhi)=("%xmm0","%xmm1"); $Hkey="%xmm2";
422 ($T1,$T2,$T3)=("%xmm3","%xmm4","%xmm5");
424 sub clmul64x64_T2 { # minimal register pressure
425 my ($Xhi,$Xi,$Hkey,$HK)=@_;
427 if (!defined($HK)) { $HK = $T2;
430 pshufd \$0b01001110,$Xi,$T1
431 pshufd \$0b01001110,$Hkey,$T2
438 pshufd \$0b01001110,$Xi,$T1
443 pclmulqdq \$0x00,$Hkey,$Xi #######
444 pclmulqdq \$0x11,$Hkey,$Xhi #######
445 pclmulqdq \$0x00,$HK,$T1 #######
457 sub reduction_alg9 { # 17/11 times faster than Intel version
487 { my ($Htbl,$Xip)=@_4args;
491 .globl gcm_init_clmul
492 .type gcm_init_clmul,\@abi-omnipotent
497 $code.=<<___ if ($win64);
498 .LSEH_begin_gcm_init_clmul:
499 # I can't trust assembler to use specific encoding:-(
500 .byte 0x48,0x83,0xec,0x18 #sub $0x18,%rsp
501 .byte 0x0f,0x29,0x34,0x24 #movaps %xmm6,(%rsp)
505 pshufd \$0b01001110,$Hkey,$Hkey # dword swap
508 pshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
513 pcmpgtd $T2,$T3 # broadcast carry bit
515 por $T1,$Hkey # H<<=1
518 pand .L0x1c2_polynomial(%rip),$T3
519 pxor $T3,$Hkey # if(carry) H^=0x1c2_polynomial
522 pshufd \$0b01001110,$Hkey,$HK
526 &clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK);
527 &reduction_alg9 ($Xhi,$Xi);
529 pshufd \$0b01001110,$Hkey,$T1
530 pshufd \$0b01001110,$Xi,$T2
531 pxor $Hkey,$T1 # Karatsuba pre-processing
532 movdqu $Hkey,0x00($Htbl) # save H
533 pxor $Xi,$T2 # Karatsuba pre-processing
534 movdqu $Xi,0x10($Htbl) # save H^2
535 palignr \$8,$T1,$T2 # low part is H.lo^H.hi...
536 movdqu $T2,0x20($Htbl) # save Karatsuba "salt"
539 &clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H^3
540 &reduction_alg9 ($Xhi,$Xi);
544 &clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H^4
545 &reduction_alg9 ($Xhi,$Xi);
547 pshufd \$0b01001110,$T3,$T1
548 pshufd \$0b01001110,$Xi,$T2
549 pxor $T3,$T1 # Karatsuba pre-processing
550 movdqu $T3,0x30($Htbl) # save H^3
551 pxor $Xi,$T2 # Karatsuba pre-processing
552 movdqu $Xi,0x40($Htbl) # save H^4
553 palignr \$8,$T1,$T2 # low part is H^3.lo^H^3.hi...
554 movdqu $T2,0x50($Htbl) # save Karatsuba "salt"
557 $code.=<<___ if ($win64);
560 .LSEH_end_gcm_init_clmul:
564 .size gcm_init_clmul,.-gcm_init_clmul
568 { my ($Xip,$Htbl)=@_4args;
571 .globl gcm_gmult_clmul
572 .type gcm_gmult_clmul,\@abi-omnipotent
577 movdqa .Lbswap_mask(%rip),$T3
579 movdqu 0x20($Htbl),$T2
582 &clmul64x64_T2 ($Xhi,$Xi,$Hkey,$T2);
583 $code.=<<___ if (0 || (&reduction_alg9($Xhi,$Xi)&&0));
584 # experimental alternative. special thing about is that there
585 # no dependency between the two multiplications...
587 mov \$0xA040608020C0E000,%r10 # ((7..0)·0xE0)&0xff
591 movq %r11,$T3 # borrow $T3
593 pshufb $T3,$T2 # ($Xi&7)·0xE0
595 pclmulqdq \$0x00,$Xi,$T1 # ·(0xE1<<1)
598 paddd $T2,$T2 # <<(64+56+1)
600 pclmulqdq \$0x01,$T3,$Xi
601 movdqa .Lbswap_mask(%rip),$T3 # reload $T3
611 .size gcm_gmult_clmul,.-gcm_gmult_clmul
615 { my ($Xip,$Htbl,$inp,$len)=@_4args;
616 my ($Xln,$Xmn,$Xhn,$Hkey2,$HK) = map("%xmm$_",(3..7));
617 my ($T1,$T2,$T3)=map("%xmm$_",(8..10));
620 .globl gcm_ghash_clmul
621 .type gcm_ghash_clmul,\@abi-omnipotent
626 $code.=<<___ if ($win64);
628 .LSEH_begin_gcm_ghash_clmul:
629 # I can't trust assembler to use specific encoding:-(
630 .byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax),%rsp
631 .byte 0x0f,0x29,0x70,0xe0 #movaps %xmm6,-0x20(%rax)
632 .byte 0x0f,0x29,0x78,0xf0 #movaps %xmm7,-0x10(%rax)
633 .byte 0x44,0x0f,0x29,0x00 #movaps %xmm8,0(%rax)
634 .byte 0x44,0x0f,0x29,0x48,0x10 #movaps %xmm9,0x10(%rax)
635 .byte 0x44,0x0f,0x29,0x50,0x20 #movaps %xmm10,0x20(%rax)
636 .byte 0x44,0x0f,0x29,0x58,0x30 #movaps %xmm11,0x30(%rax)
637 .byte 0x44,0x0f,0x29,0x60,0x40 #movaps %xmm12,0x40(%rax)
638 .byte 0x44,0x0f,0x29,0x68,0x50 #movaps %xmm13,0x50(%rax)
639 .byte 0x44,0x0f,0x29,0x70,0x60 #movaps %xmm14,0x60(%rax)
640 .byte 0x44,0x0f,0x29,0x78,0x70 #movaps %xmm15,0x70(%rax)
643 movdqa .Lbswap_mask(%rip),$T3
647 movdqu 0x20($Htbl),$HK
653 movdqu 0x10($Htbl),$Hkey2
656 my ($Xl,$Xm,$Xh,$Hkey3,$Hkey4)=map("%xmm$_",(11..15));
659 mov OPENSSL_ia32cap_P+4(%rip),%eax
663 and \$`1<<26|1<<22`,%eax # isolate MOVBE+XSAVE
664 cmp \$`1<<22`,%eax # check for MOVBE without XSAVE
668 mov \$0xA040608020C0E000,%rax # ((7..0)·0xE0)&0xff
669 movdqu 0x30($Htbl),$Hkey3
670 movdqu 0x40($Htbl),$Hkey4
673 # Xi+4 =[(H*Ii+3) + (H^2*Ii+2) + (H^3*Ii+1) + H^4*(Ii+Xi)] mod P
675 movdqu 0x30($inp),$Xln
676 movdqu 0x20($inp),$Xl
680 pshufd \$0b01001110,$Xln,$Xmn
682 pclmulqdq \$0x00,$Hkey,$Xln
683 pclmulqdq \$0x11,$Hkey,$Xhn
684 pclmulqdq \$0x00,$HK,$Xmn
687 pshufd \$0b01001110,$Xl,$Xm
689 pclmulqdq \$0x00,$Hkey2,$Xl
690 pclmulqdq \$0x11,$Hkey2,$Xh
691 pclmulqdq \$0x10,$HK,$Xm
694 movups 0x50($Htbl),$HK
697 movdqu 0x10($inp),$Xl
702 pshufd \$0b01001110,$Xl,$Xm
705 pclmulqdq \$0x00,$Hkey3,$Xl
707 pshufd \$0b01001110,$Xi,$T1
709 pclmulqdq \$0x11,$Hkey3,$Xh
710 pclmulqdq \$0x00,$HK,$Xm
721 pclmulqdq \$0x00,$Hkey4,$Xi
723 movdqu 0x30($inp),$Xl
725 pclmulqdq \$0x11,$Hkey4,$Xhi
727 movdqu 0x20($inp),$Xln
729 pclmulqdq \$0x10,$HK,$T1
730 pshufd \$0b01001110,$Xl,$Xm
734 movups 0x20($Htbl),$HK
736 pclmulqdq \$0x00,$Hkey,$Xl
737 pshufd \$0b01001110,$Xln,$Xmn
739 pxor $Xi,$T1 # aggregated Karatsuba post-processing
744 pclmulqdq \$0x11,$Hkey,$Xh
748 movdqa .L7_mask(%rip),$T1
752 pand $Xi,$T1 # 1st phase
755 pclmulqdq \$0x00,$HK,$Xm
759 pclmulqdq \$0x00,$Hkey2,$Xln
765 movdqa $Xi,$T2 # 2nd phase
767 pclmulqdq \$0x11,$Hkey2,$Xhn
769 movdqu 0x10($inp),$Xl
771 pclmulqdq \$0x10,$HK,$Xmn
773 movups 0x50($Htbl),$HK
781 pshufd \$0b01001110,$Xl,$Xm
785 pclmulqdq \$0x00,$Hkey3,$Xl
789 pclmulqdq \$0x11,$Hkey3,$Xh
791 pshufd \$0b01001110,$Xi,$T1
794 pclmulqdq \$0x00,$HK,$Xm
802 pclmulqdq \$0x00,$Hkey4,$Xi
803 pclmulqdq \$0x11,$Hkey4,$Xhi
804 pclmulqdq \$0x10,$HK,$T1
808 pxor $Xi,$Xhi # aggregated Karatsuba post-processing
820 &reduction_alg9($Xhi,$Xi);
824 movdqu 0x20($Htbl),$HK
832 # Xi+2 =[H*(Ii+1 + Xi+1)] mod P =
833 # [(H*Ii+1) + (H*Xi+1)] mod P =
834 # [(H*Ii+1) + H^2*(Ii+Xi)] mod P
836 movdqu ($inp),$T1 # Ii
837 movdqu 16($inp),$Xln # Ii+1
843 pshufd \$0b01001110,$Xln,$Xmn
845 pclmulqdq \$0x00,$Hkey,$Xln
846 pclmulqdq \$0x11,$Hkey,$Xhn
847 pclmulqdq \$0x00,$HK,$Xmn
849 lea 32($inp),$inp # i+=2
860 pshufd \$0b01001110,$Xi,$Xmn #
863 pclmulqdq \$0x00,$Hkey2,$Xi
864 pclmulqdq \$0x11,$Hkey2,$Xhi
865 pclmulqdq \$0x10,$HK,$Xmn
867 pxor $Xln,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
869 movdqu ($inp),$T2 # Ii
870 pxor $Xi,$T1 # aggregated Karatsuba post-processing
872 movdqu 16($inp),$Xln # Ii+1
875 pxor $T2,$Xhi # "Ii+Xi", consume early
886 movdqa $Xi,$T2 # 1st phase
890 pclmulqdq \$0x00,$Hkey,$Xln #######
898 pshufd \$0b01001110,$Xhn,$Xmn
902 movdqa $Xi,$T2 # 2nd phase
904 pclmulqdq \$0x11,$Hkey,$Xhn #######
911 pclmulqdq \$0x00,$HK,$Xmn #######
920 pshufd \$0b01001110,$Xi,$Xmn #
923 pclmulqdq \$0x00,$Hkey2,$Xi
924 pclmulqdq \$0x11,$Hkey2,$Xhi
925 pclmulqdq \$0x10,$HK,$Xmn
927 pxor $Xln,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
938 &reduction_alg9 ($Xhi,$Xi);
944 movdqu ($inp),$T1 # Ii
948 &clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H*(Ii+Xi)
949 &reduction_alg9 ($Xhi,$Xi);
955 $code.=<<___ if ($win64);
957 movaps 0x10(%rsp),%xmm7
958 movaps 0x20(%rsp),%xmm8
959 movaps 0x30(%rsp),%xmm9
960 movaps 0x40(%rsp),%xmm10
961 movaps 0x50(%rsp),%xmm11
962 movaps 0x60(%rsp),%xmm12
963 movaps 0x70(%rsp),%xmm13
964 movaps 0x80(%rsp),%xmm14
965 movaps 0x90(%rsp),%xmm15
967 .LSEH_end_gcm_ghash_clmul:
971 .size gcm_ghash_clmul,.-gcm_ghash_clmul
977 .type gcm_init_avx,\@abi-omnipotent
982 my ($Htbl,$Xip)=@_4args;
985 $code.=<<___ if ($win64);
986 .LSEH_begin_gcm_init_avx:
987 # I can't trust assembler to use specific encoding:-(
988 .byte 0x48,0x83,0xec,0x18 #sub $0x18,%rsp
989 .byte 0x0f,0x29,0x34,0x24 #movaps %xmm6,(%rsp)
995 vpshufd \$0b01001110,$Hkey,$Hkey # dword swap
998 vpshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
999 vpsrlq \$63,$Hkey,$T1
1000 vpsllq \$1,$Hkey,$Hkey
1002 vpcmpgtd $T2,$T3,$T3 # broadcast carry bit
1004 vpor $T1,$Hkey,$Hkey # H<<=1
1007 vpand .L0x1c2_polynomial(%rip),$T3,$T3
1008 vpxor $T3,$Hkey,$Hkey # if(carry) H^=0x1c2_polynomial
1010 vpunpckhqdq $Hkey,$Hkey,$HK
1013 mov \$4,%r10 # up to H^8
1014 jmp .Linit_start_avx
1017 sub clmul64x64_avx {
1018 my ($Xhi,$Xi,$Hkey,$HK)=@_;
1020 if (!defined($HK)) { $HK = $T2;
1022 vpunpckhqdq $Xi,$Xi,$T1
1023 vpunpckhqdq $Hkey,$Hkey,$T2
1029 vpunpckhqdq $Xi,$Xi,$T1
1034 vpclmulqdq \$0x11,$Hkey,$Xi,$Xhi #######
1035 vpclmulqdq \$0x00,$Hkey,$Xi,$Xi #######
1036 vpclmulqdq \$0x00,$HK,$T1,$T1 #######
1037 vpxor $Xi,$Xhi,$T2 #
1040 vpslldq \$8,$T1,$T2 #
1051 vpsllq \$57,$Xi,$T1 # 1st phase
1056 vpslldq \$8,$T2,$T1 #
1061 vpsrlq \$1,$Xi,$T2 # 2nd phase
1066 vpsrlq \$1,$Xi,$Xi #
1067 vpxor $Xhi,$Xi,$Xi #
1074 vpalignr \$8,$T1,$T2,$T3 # low part is H.lo^H.hi...
1075 vmovdqu $T3,-0x10($Htbl) # save Karatsuba "salt"
1077 &clmul64x64_avx ($Xhi,$Xi,$Hkey,$HK); # calculate H^3,5,7
1078 &reduction_avx ($Xhi,$Xi);
1083 &clmul64x64_avx ($Xhi,$Xi,$Hkey,$HK); # calculate H^2,4,6,8
1084 &reduction_avx ($Xhi,$Xi);
1086 vpshufd \$0b01001110,$T3,$T1
1087 vpshufd \$0b01001110,$Xi,$T2
1088 vpxor $T3,$T1,$T1 # Karatsuba pre-processing
1089 vmovdqu $T3,0x00($Htbl) # save H^1,3,5,7
1090 vpxor $Xi,$T2,$T2 # Karatsuba pre-processing
1091 vmovdqu $Xi,0x10($Htbl) # save H^2,4,6,8
1092 lea 0x30($Htbl),$Htbl
1096 vpalignr \$8,$T2,$T1,$T3 # last "salt" is flipped
1097 vmovdqu $T3,-0x10($Htbl)
1101 $code.=<<___ if ($win64);
1104 .LSEH_end_gcm_init_avx:
1108 .size gcm_init_avx,.-gcm_init_avx
1113 .size gcm_init_avx,.-gcm_init_avx
1118 .globl gcm_gmult_avx
1119 .type gcm_gmult_avx,\@abi-omnipotent
1123 .size gcm_gmult_avx,.-gcm_gmult_avx
1127 .globl gcm_ghash_avx
1128 .type gcm_ghash_avx,\@abi-omnipotent
1133 my ($Xip,$Htbl,$inp,$len)=@_4args;
1137 $Xi,$Xo,$Tred,$bswap,$Ii,$Ij) = map("%xmm$_",(0..15));
1139 $code.=<<___ if ($win64);
1140 lea -0x88(%rsp),%rax
1141 .LSEH_begin_gcm_ghash_avx:
1142 # I can't trust assembler to use specific encoding:-(
1143 .byte 0x48,0x8d,0x60,0xe0 #lea -0x20(%rax),%rsp
1144 .byte 0x0f,0x29,0x70,0xe0 #movaps %xmm6,-0x20(%rax)
1145 .byte 0x0f,0x29,0x78,0xf0 #movaps %xmm7,-0x10(%rax)
1146 .byte 0x44,0x0f,0x29,0x00 #movaps %xmm8,0(%rax)
1147 .byte 0x44,0x0f,0x29,0x48,0x10 #movaps %xmm9,0x10(%rax)
1148 .byte 0x44,0x0f,0x29,0x50,0x20 #movaps %xmm10,0x20(%rax)
1149 .byte 0x44,0x0f,0x29,0x58,0x30 #movaps %xmm11,0x30(%rax)
1150 .byte 0x44,0x0f,0x29,0x60,0x40 #movaps %xmm12,0x40(%rax)
1151 .byte 0x44,0x0f,0x29,0x68,0x50 #movaps %xmm13,0x50(%rax)
1152 .byte 0x44,0x0f,0x29,0x70,0x60 #movaps %xmm14,0x60(%rax)
1153 .byte 0x44,0x0f,0x29,0x78,0x70 #movaps %xmm15,0x70(%rax)
1158 vmovdqu ($Xip),$Xi # load $Xi
1159 lea .L0x1c2_polynomial(%rip),%r10
1160 lea 0x40($Htbl),$Htbl # size optimization
1161 vmovdqu .Lbswap_mask(%rip),$bswap
1162 vpshufb $bswap,$Xi,$Xi
1167 vmovdqu 0x70($inp),$Ii # I[7]
1168 vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
1169 vpshufb $bswap,$Ii,$Ii
1170 vmovdqu 0x20-0x40($Htbl),$HK
1172 vpunpckhqdq $Ii,$Ii,$T2
1173 vmovdqu 0x60($inp),$Ij # I[6]
1174 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1176 vpshufb $bswap,$Ij,$Ij
1177 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1178 vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
1179 vpunpckhqdq $Ij,$Ij,$T1
1180 vmovdqu 0x50($inp),$Ii # I[5]
1181 vpclmulqdq \$0x00,$HK,$T2,$Xmi
1184 vpshufb $bswap,$Ii,$Ii
1185 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1186 vpunpckhqdq $Ii,$Ii,$T2
1187 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1188 vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
1190 vmovdqu 0x40($inp),$Ij # I[4]
1191 vpclmulqdq \$0x10,$HK,$T1,$Zmi
1192 vmovdqu 0x50-0x40($Htbl),$HK
1194 vpshufb $bswap,$Ij,$Ij
1195 vpxor $Xlo,$Zlo,$Zlo
1196 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1197 vpxor $Xhi,$Zhi,$Zhi
1198 vpunpckhqdq $Ij,$Ij,$T1
1199 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1200 vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
1201 vpxor $Xmi,$Zmi,$Zmi
1202 vpclmulqdq \$0x00,$HK,$T2,$Xmi
1205 vmovdqu 0x30($inp),$Ii # I[3]
1206 vpxor $Zlo,$Xlo,$Xlo
1207 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1208 vpxor $Zhi,$Xhi,$Xhi
1209 vpshufb $bswap,$Ii,$Ii
1210 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1211 vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
1212 vpxor $Zmi,$Xmi,$Xmi
1213 vpunpckhqdq $Ii,$Ii,$T2
1214 vpclmulqdq \$0x10,$HK,$T1,$Zmi
1215 vmovdqu 0x80-0x40($Htbl),$HK
1218 vmovdqu 0x20($inp),$Ij # I[2]
1219 vpxor $Xlo,$Zlo,$Zlo
1220 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1221 vpxor $Xhi,$Zhi,$Zhi
1222 vpshufb $bswap,$Ij,$Ij
1223 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1224 vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
1225 vpxor $Xmi,$Zmi,$Zmi
1226 vpunpckhqdq $Ij,$Ij,$T1
1227 vpclmulqdq \$0x00,$HK,$T2,$Xmi
1230 vmovdqu 0x10($inp),$Ii # I[1]
1231 vpxor $Zlo,$Xlo,$Xlo
1232 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1233 vpxor $Zhi,$Xhi,$Xhi
1234 vpshufb $bswap,$Ii,$Ii
1235 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1236 vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
1237 vpxor $Zmi,$Xmi,$Xmi
1238 vpunpckhqdq $Ii,$Ii,$T2
1239 vpclmulqdq \$0x10,$HK,$T1,$Zmi
1240 vmovdqu 0xb0-0x40($Htbl),$HK
1243 vmovdqu ($inp),$Ij # I[0]
1244 vpxor $Xlo,$Zlo,$Zlo
1245 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1246 vpxor $Xhi,$Zhi,$Zhi
1247 vpshufb $bswap,$Ij,$Ij
1248 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1249 vmovdqu 0xa0-0x40($Htbl),$Hkey # $Hkey^8
1250 vpxor $Xmi,$Zmi,$Zmi
1251 vpclmulqdq \$0x10,$HK,$T2,$Xmi
1257 vpxor $Xi,$Ij,$Ij # accumulate $Xi
1263 vpunpckhqdq $Ij,$Ij,$T1
1264 vmovdqu 0x70($inp),$Ii # I[7]
1265 vpxor $Xlo,$Zlo,$Zlo
1267 vpclmulqdq \$0x00,$Hkey,$Ij,$Xi
1268 vpshufb $bswap,$Ii,$Ii
1269 vpxor $Xhi,$Zhi,$Zhi
1270 vpclmulqdq \$0x11,$Hkey,$Ij,$Xo
1271 vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
1272 vpunpckhqdq $Ii,$Ii,$T2
1273 vpxor $Xmi,$Zmi,$Zmi
1274 vpclmulqdq \$0x00,$HK,$T1,$Tred
1275 vmovdqu 0x20-0x40($Htbl),$HK
1278 vmovdqu 0x60($inp),$Ij # I[6]
1279 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1280 vpxor $Zlo,$Xi,$Xi # collect result
1281 vpshufb $bswap,$Ij,$Ij
1282 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1284 vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
1285 vpunpckhqdq $Ij,$Ij,$T1
1286 vpclmulqdq \$0x00,$HK, $T2,$Xmi
1287 vpxor $Zmi,$Tred,$Tred
1290 vmovdqu 0x50($inp),$Ii # I[5]
1291 vpxor $Xi,$Tred,$Tred # aggregated Karatsuba post-processing
1292 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1293 vpxor $Xo,$Tred,$Tred
1294 vpslldq \$8,$Tred,$T2
1295 vpxor $Xlo,$Zlo,$Zlo
1296 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1297 vpsrldq \$8,$Tred,$Tred
1299 vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
1300 vpshufb $bswap,$Ii,$Ii
1301 vxorps $Tred,$Xo, $Xo
1302 vpxor $Xhi,$Zhi,$Zhi
1303 vpunpckhqdq $Ii,$Ii,$T2
1304 vpclmulqdq \$0x10,$HK, $T1,$Zmi
1305 vmovdqu 0x50-0x40($Htbl),$HK
1307 vpxor $Xmi,$Zmi,$Zmi
1309 vmovdqu 0x40($inp),$Ij # I[4]
1310 vpalignr \$8,$Xi,$Xi,$Tred # 1st phase
1311 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1312 vpshufb $bswap,$Ij,$Ij
1313 vpxor $Zlo,$Xlo,$Xlo
1314 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1315 vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
1316 vpunpckhqdq $Ij,$Ij,$T1
1317 vpxor $Zhi,$Xhi,$Xhi
1318 vpclmulqdq \$0x00,$HK, $T2,$Xmi
1320 vpxor $Zmi,$Xmi,$Xmi
1322 vmovdqu 0x30($inp),$Ii # I[3]
1323 vpclmulqdq \$0x10,(%r10),$Xi,$Xi
1324 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1325 vpshufb $bswap,$Ii,$Ii
1326 vpxor $Xlo,$Zlo,$Zlo
1327 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1328 vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
1329 vpunpckhqdq $Ii,$Ii,$T2
1330 vpxor $Xhi,$Zhi,$Zhi
1331 vpclmulqdq \$0x10,$HK, $T1,$Zmi
1332 vmovdqu 0x80-0x40($Htbl),$HK
1334 vpxor $Xmi,$Zmi,$Zmi
1336 vmovdqu 0x20($inp),$Ij # I[2]
1337 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1338 vpshufb $bswap,$Ij,$Ij
1339 vpxor $Zlo,$Xlo,$Xlo
1340 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1341 vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
1342 vpunpckhqdq $Ij,$Ij,$T1
1343 vpxor $Zhi,$Xhi,$Xhi
1344 vpclmulqdq \$0x00,$HK, $T2,$Xmi
1346 vpxor $Zmi,$Xmi,$Xmi
1347 vxorps $Tred,$Xi,$Xi
1349 vmovdqu 0x10($inp),$Ii # I[1]
1350 vpalignr \$8,$Xi,$Xi,$Tred # 2nd phase
1351 vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
1352 vpshufb $bswap,$Ii,$Ii
1353 vpxor $Xlo,$Zlo,$Zlo
1354 vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
1355 vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
1356 vpclmulqdq \$0x10,(%r10),$Xi,$Xi
1357 vxorps $Xo,$Tred,$Tred
1358 vpunpckhqdq $Ii,$Ii,$T2
1359 vpxor $Xhi,$Zhi,$Zhi
1360 vpclmulqdq \$0x10,$HK, $T1,$Zmi
1361 vmovdqu 0xb0-0x40($Htbl),$HK
1363 vpxor $Xmi,$Zmi,$Zmi
1365 vmovdqu ($inp),$Ij # I[0]
1366 vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
1367 vpshufb $bswap,$Ij,$Ij
1368 vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
1369 vmovdqu 0xa0-0x40($Htbl),$Hkey # $Hkey^8
1371 vpclmulqdq \$0x10,$HK, $T2,$Xmi
1372 vpxor $Xi,$Ij,$Ij # accumulate $Xi
1379 jmp .Ltail_no_xor_avx
1383 vmovdqu -0x10($inp,$len),$Ii # very last word
1384 lea ($inp,$len),$inp
1385 vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
1386 vmovdqu 0x20-0x40($Htbl),$HK
1387 vpshufb $bswap,$Ii,$Ij
1389 vmovdqa $Xlo,$Zlo # subtle way to zero $Zlo,
1390 vmovdqa $Xhi,$Zhi # $Zhi and
1391 vmovdqa $Xmi,$Zmi # $Zmi
1395 vpunpckhqdq $Ij,$Ij,$T1
1396 vpxor $Xlo,$Zlo,$Zlo
1397 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1399 vmovdqu -0x20($inp),$Ii
1400 vpxor $Xhi,$Zhi,$Zhi
1401 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1402 vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
1403 vpshufb $bswap,$Ii,$Ij
1404 vpxor $Xmi,$Zmi,$Zmi
1405 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1410 vpunpckhqdq $Ij,$Ij,$T1
1411 vpxor $Xlo,$Zlo,$Zlo
1412 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1414 vmovdqu -0x30($inp),$Ii
1415 vpxor $Xhi,$Zhi,$Zhi
1416 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1417 vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
1418 vpshufb $bswap,$Ii,$Ij
1419 vpxor $Xmi,$Zmi,$Zmi
1420 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1421 vmovdqu 0x50-0x40($Htbl),$HK
1425 vpunpckhqdq $Ij,$Ij,$T1
1426 vpxor $Xlo,$Zlo,$Zlo
1427 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1429 vmovdqu -0x40($inp),$Ii
1430 vpxor $Xhi,$Zhi,$Zhi
1431 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1432 vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
1433 vpshufb $bswap,$Ii,$Ij
1434 vpxor $Xmi,$Zmi,$Zmi
1435 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1440 vpunpckhqdq $Ij,$Ij,$T1
1441 vpxor $Xlo,$Zlo,$Zlo
1442 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1444 vmovdqu -0x50($inp),$Ii
1445 vpxor $Xhi,$Zhi,$Zhi
1446 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1447 vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
1448 vpshufb $bswap,$Ii,$Ij
1449 vpxor $Xmi,$Zmi,$Zmi
1450 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1451 vmovdqu 0x80-0x40($Htbl),$HK
1455 vpunpckhqdq $Ij,$Ij,$T1
1456 vpxor $Xlo,$Zlo,$Zlo
1457 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1459 vmovdqu -0x60($inp),$Ii
1460 vpxor $Xhi,$Zhi,$Zhi
1461 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1462 vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
1463 vpshufb $bswap,$Ii,$Ij
1464 vpxor $Xmi,$Zmi,$Zmi
1465 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1470 vpunpckhqdq $Ij,$Ij,$T1
1471 vpxor $Xlo,$Zlo,$Zlo
1472 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1474 vmovdqu -0x70($inp),$Ii
1475 vpxor $Xhi,$Zhi,$Zhi
1476 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1477 vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
1478 vpshufb $bswap,$Ii,$Ij
1479 vpxor $Xmi,$Zmi,$Zmi
1480 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1481 vmovq 0xb8-0x40($Htbl),$HK
1487 vpxor $Xi,$Ij,$Ij # accumulate $Xi
1489 vpunpckhqdq $Ij,$Ij,$T1
1490 vpxor $Xlo,$Zlo,$Zlo
1491 vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
1493 vpxor $Xhi,$Zhi,$Zhi
1494 vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
1495 vpxor $Xmi,$Zmi,$Zmi
1496 vpclmulqdq \$0x00,$HK,$T1,$Xmi
1498 vmovdqu (%r10),$Tred
1502 vpxor $Xmi,$Zmi,$Zmi
1504 vpxor $Xi, $Zmi,$Zmi # aggregated Karatsuba post-processing
1505 vpxor $Xo, $Zmi,$Zmi
1506 vpslldq \$8, $Zmi,$T2
1507 vpsrldq \$8, $Zmi,$Zmi
1511 vpclmulqdq \$0x10,$Tred,$Xi,$T2 # 1st phase
1512 vpalignr \$8,$Xi,$Xi,$Xi
1515 vpclmulqdq \$0x10,$Tred,$Xi,$T2 # 2nd phase
1516 vpalignr \$8,$Xi,$Xi,$Xi
1523 vpshufb $bswap,$Xi,$Xi
1527 $code.=<<___ if ($win64);
1529 movaps 0x10(%rsp),%xmm7
1530 movaps 0x20(%rsp),%xmm8
1531 movaps 0x30(%rsp),%xmm9
1532 movaps 0x40(%rsp),%xmm10
1533 movaps 0x50(%rsp),%xmm11
1534 movaps 0x60(%rsp),%xmm12
1535 movaps 0x70(%rsp),%xmm13
1536 movaps 0x80(%rsp),%xmm14
1537 movaps 0x90(%rsp),%xmm15
1539 .LSEH_end_gcm_ghash_avx:
1543 .size gcm_ghash_avx,.-gcm_ghash_avx
1548 .size gcm_ghash_avx,.-gcm_ghash_avx
1555 .byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
1557 .byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
1561 .long 7,0,`0xE1<<1`,0
1563 .type .Lrem_4bit,\@object
1565 .long 0,`0x0000<<16`,0,`0x1C20<<16`,0,`0x3840<<16`,0,`0x2460<<16`
1566 .long 0,`0x7080<<16`,0,`0x6CA0<<16`,0,`0x48C0<<16`,0,`0x54E0<<16`
1567 .long 0,`0xE100<<16`,0,`0xFD20<<16`,0,`0xD940<<16`,0,`0xC560<<16`
1568 .long 0,`0x9180<<16`,0,`0x8DA0<<16`,0,`0xA9C0<<16`,0,`0xB5E0<<16`
1569 .type .Lrem_8bit,\@object
1571 .value 0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
1572 .value 0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
1573 .value 0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
1574 .value 0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
1575 .value 0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
1576 .value 0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
1577 .value 0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
1578 .value 0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
1579 .value 0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
1580 .value 0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
1581 .value 0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
1582 .value 0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
1583 .value 0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
1584 .value 0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
1585 .value 0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
1586 .value 0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
1587 .value 0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
1588 .value 0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
1589 .value 0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
1590 .value 0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
1591 .value 0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
1592 .value 0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
1593 .value 0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
1594 .value 0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
1595 .value 0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
1596 .value 0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
1597 .value 0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
1598 .value 0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
1599 .value 0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
1600 .value 0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
1601 .value 0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
1602 .value 0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
1604 .asciz "GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
1608 # EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
1609 # CONTEXT *context,DISPATCHER_CONTEXT *disp)
1617 .extern __imp_RtlVirtualUnwind
1618 .type se_handler,\@abi-omnipotent
1632 mov 120($context),%rax # pull context->Rax
1633 mov 248($context),%rbx # pull context->Rip
1635 mov 8($disp),%rsi # disp->ImageBase
1636 mov 56($disp),%r11 # disp->HandlerData
1638 mov 0(%r11),%r10d # HandlerData[0]
1639 lea (%rsi,%r10),%r10 # prologue label
1640 cmp %r10,%rbx # context->Rip<prologue label
1643 mov 152($context),%rax # pull context->Rsp
1645 mov 4(%r11),%r10d # HandlerData[1]
1646 lea (%rsi,%r10),%r10 # epilogue label
1647 cmp %r10,%rbx # context->Rip>=epilogue label
1650 lea 24(%rax),%rax # adjust "rsp"
1655 mov %rbx,144($context) # restore context->Rbx
1656 mov %rbp,160($context) # restore context->Rbp
1657 mov %r12,216($context) # restore context->R12
1662 mov %rax,152($context) # restore context->Rsp
1663 mov %rsi,168($context) # restore context->Rsi
1664 mov %rdi,176($context) # restore context->Rdi
1666 mov 40($disp),%rdi # disp->ContextRecord
1667 mov $context,%rsi # context
1668 mov \$`1232/8`,%ecx # sizeof(CONTEXT)
1669 .long 0xa548f3fc # cld; rep movsq
1672 xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
1673 mov 8(%rsi),%rdx # arg2, disp->ImageBase
1674 mov 0(%rsi),%r8 # arg3, disp->ControlPc
1675 mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
1676 mov 40(%rsi),%r10 # disp->ContextRecord
1677 lea 56(%rsi),%r11 # &disp->HandlerData
1678 lea 24(%rsi),%r12 # &disp->EstablisherFrame
1679 mov %r10,32(%rsp) # arg5
1680 mov %r11,40(%rsp) # arg6
1681 mov %r12,48(%rsp) # arg7
1682 mov %rcx,56(%rsp) # arg8, (NULL)
1683 call *__imp_RtlVirtualUnwind(%rip)
1685 mov \$1,%eax # ExceptionContinueSearch
1697 .size se_handler,.-se_handler
1701 .rva .LSEH_begin_gcm_gmult_4bit
1702 .rva .LSEH_end_gcm_gmult_4bit
1703 .rva .LSEH_info_gcm_gmult_4bit
1705 .rva .LSEH_begin_gcm_ghash_4bit
1706 .rva .LSEH_end_gcm_ghash_4bit
1707 .rva .LSEH_info_gcm_ghash_4bit
1709 .rva .LSEH_begin_gcm_init_clmul
1710 .rva .LSEH_end_gcm_init_clmul
1711 .rva .LSEH_info_gcm_init_clmul
1713 .rva .LSEH_begin_gcm_ghash_clmul
1714 .rva .LSEH_end_gcm_ghash_clmul
1715 .rva .LSEH_info_gcm_ghash_clmul
1717 $code.=<<___ if ($avx);
1718 .rva .LSEH_begin_gcm_init_avx
1719 .rva .LSEH_end_gcm_init_avx
1720 .rva .LSEH_info_gcm_init_clmul
1722 .rva .LSEH_begin_gcm_ghash_avx
1723 .rva .LSEH_end_gcm_ghash_avx
1724 .rva .LSEH_info_gcm_ghash_clmul
1729 .LSEH_info_gcm_gmult_4bit:
1732 .rva .Lgmult_prologue,.Lgmult_epilogue # HandlerData
1733 .LSEH_info_gcm_ghash_4bit:
1736 .rva .Lghash_prologue,.Lghash_epilogue # HandlerData
1737 .LSEH_info_gcm_init_clmul:
1738 .byte 0x01,0x08,0x03,0x00
1739 .byte 0x08,0x68,0x00,0x00 #movaps 0x00(rsp),xmm6
1740 .byte 0x04,0x22,0x00,0x00 #sub rsp,0x18
1741 .LSEH_info_gcm_ghash_clmul:
1742 .byte 0x01,0x33,0x16,0x00
1743 .byte 0x33,0xf8,0x09,0x00 #movaps 0x90(rsp),xmm15
1744 .byte 0x2e,0xe8,0x08,0x00 #movaps 0x80(rsp),xmm14
1745 .byte 0x29,0xd8,0x07,0x00 #movaps 0x70(rsp),xmm13
1746 .byte 0x24,0xc8,0x06,0x00 #movaps 0x60(rsp),xmm12
1747 .byte 0x1f,0xb8,0x05,0x00 #movaps 0x50(rsp),xmm11
1748 .byte 0x1a,0xa8,0x04,0x00 #movaps 0x40(rsp),xmm10
1749 .byte 0x15,0x98,0x03,0x00 #movaps 0x30(rsp),xmm9
1750 .byte 0x10,0x88,0x02,0x00 #movaps 0x20(rsp),xmm8
1751 .byte 0x0c,0x78,0x01,0x00 #movaps 0x10(rsp),xmm7
1752 .byte 0x08,0x68,0x00,0x00 #movaps 0x00(rsp),xmm6
1753 .byte 0x04,0x01,0x15,0x00 #sub rsp,0xa8
1757 $code =~ s/\`([^\`]*)\`/eval($1)/gem;