bdbd3aea59
Most of the assembly uses constants from arm_arch.h, but a few references to ARMV7_NEON don't. Consistently use the macros everywhere. Signed-off-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org>
661 lines
17 KiB
Prolog
661 lines
17 KiB
Prolog
#!/usr/bin/env perl
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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#
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# Permission to use under GPL terms is granted.
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# ====================================================================
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# SHA512 block procedure for ARMv4. September 2007.
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# This code is ~4.5 (four and a half) times faster than code generated
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# by gcc 3.4 and it spends ~72 clock cycles per byte [on single-issue
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# Xscale PXA250 core].
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#
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# July 2010.
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#
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# Rescheduling for dual-issue pipeline resulted in 6% improvement on
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# Cortex A8 core and ~40 cycles per processed byte.
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# February 2011.
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#
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# Profiler-assisted and platform-specific optimization resulted in 7%
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# improvement on Coxtex A8 core and ~38 cycles per byte.
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# March 2011.
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#
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# Add NEON implementation. On Cortex A8 it was measured to process
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# one byte in 23.3 cycles or ~60% faster than integer-only code.
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# August 2012.
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#
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# Improve NEON performance by 12% on Snapdragon S4. In absolute
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# terms it's 22.6 cycles per byte, which is disappointing result.
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# Technical writers asserted that 3-way S4 pipeline can sustain
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# multiple NEON instructions per cycle, but dual NEON issue could
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# not be observed, see http://www.openssl.org/~appro/Snapdragon-S4.html
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# for further details. On side note Cortex-A15 processes one byte in
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# 16 cycles.
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# Byte order [in]dependence. =========================================
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#
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# Originally caller was expected to maintain specific *dword* order in
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# h[0-7], namely with most significant dword at *lower* address, which
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# was reflected in below two parameters as 0 and 4. Now caller is
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# expected to maintain native byte order for whole 64-bit values.
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$hi="HI";
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$lo="LO";
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# ====================================================================
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$flavour = shift;
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if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
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else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} }
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if ($flavour && $flavour ne "void") {
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
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die "can't locate arm-xlate.pl";
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open STDOUT,"| \"$^X\" $xlate $flavour $output";
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} else {
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open STDOUT,">$output";
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}
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$ctx="r0"; # parameter block
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$inp="r1";
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$len="r2";
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$Tlo="r3";
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$Thi="r4";
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$Alo="r5";
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$Ahi="r6";
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$Elo="r7";
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$Ehi="r8";
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$t0="r9";
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$t1="r10";
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$t2="r11";
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$t3="r12";
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############ r13 is stack pointer
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$Ktbl="r14";
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############ r15 is program counter
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$Aoff=8*0;
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$Boff=8*1;
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$Coff=8*2;
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$Doff=8*3;
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$Eoff=8*4;
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$Foff=8*5;
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$Goff=8*6;
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$Hoff=8*7;
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$Xoff=8*8;
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sub BODY_00_15() {
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my $magic = shift;
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$code.=<<___;
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@ Sigma1(x) (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41))
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@ LO lo>>14^hi<<18 ^ lo>>18^hi<<14 ^ hi>>9^lo<<23
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@ HI hi>>14^lo<<18 ^ hi>>18^lo<<14 ^ lo>>9^hi<<23
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mov $t0,$Elo,lsr#14
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str $Tlo,[sp,#$Xoff+0]
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mov $t1,$Ehi,lsr#14
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str $Thi,[sp,#$Xoff+4]
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eor $t0,$t0,$Ehi,lsl#18
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ldr $t2,[sp,#$Hoff+0] @ h.lo
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eor $t1,$t1,$Elo,lsl#18
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ldr $t3,[sp,#$Hoff+4] @ h.hi
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eor $t0,$t0,$Elo,lsr#18
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eor $t1,$t1,$Ehi,lsr#18
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eor $t0,$t0,$Ehi,lsl#14
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eor $t1,$t1,$Elo,lsl#14
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eor $t0,$t0,$Ehi,lsr#9
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eor $t1,$t1,$Elo,lsr#9
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eor $t0,$t0,$Elo,lsl#23
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eor $t1,$t1,$Ehi,lsl#23 @ Sigma1(e)
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adds $Tlo,$Tlo,$t0
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ldr $t0,[sp,#$Foff+0] @ f.lo
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adc $Thi,$Thi,$t1 @ T += Sigma1(e)
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ldr $t1,[sp,#$Foff+4] @ f.hi
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adds $Tlo,$Tlo,$t2
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ldr $t2,[sp,#$Goff+0] @ g.lo
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adc $Thi,$Thi,$t3 @ T += h
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ldr $t3,[sp,#$Goff+4] @ g.hi
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eor $t0,$t0,$t2
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str $Elo,[sp,#$Eoff+0]
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eor $t1,$t1,$t3
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str $Ehi,[sp,#$Eoff+4]
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and $t0,$t0,$Elo
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str $Alo,[sp,#$Aoff+0]
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and $t1,$t1,$Ehi
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str $Ahi,[sp,#$Aoff+4]
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eor $t0,$t0,$t2
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ldr $t2,[$Ktbl,#$lo] @ K[i].lo
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eor $t1,$t1,$t3 @ Ch(e,f,g)
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ldr $t3,[$Ktbl,#$hi] @ K[i].hi
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adds $Tlo,$Tlo,$t0
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ldr $Elo,[sp,#$Doff+0] @ d.lo
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adc $Thi,$Thi,$t1 @ T += Ch(e,f,g)
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ldr $Ehi,[sp,#$Doff+4] @ d.hi
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adds $Tlo,$Tlo,$t2
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and $t0,$t2,#0xff
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adc $Thi,$Thi,$t3 @ T += K[i]
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adds $Elo,$Elo,$Tlo
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ldr $t2,[sp,#$Boff+0] @ b.lo
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adc $Ehi,$Ehi,$Thi @ d += T
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teq $t0,#$magic
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ldr $t3,[sp,#$Coff+0] @ c.lo
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#if __ARM_ARCH__>=7
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it eq @ Thumb2 thing, sanity check in ARM
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#endif
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orreq $Ktbl,$Ktbl,#1
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@ Sigma0(x) (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39))
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@ LO lo>>28^hi<<4 ^ hi>>2^lo<<30 ^ hi>>7^lo<<25
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@ HI hi>>28^lo<<4 ^ lo>>2^hi<<30 ^ lo>>7^hi<<25
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mov $t0,$Alo,lsr#28
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mov $t1,$Ahi,lsr#28
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eor $t0,$t0,$Ahi,lsl#4
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eor $t1,$t1,$Alo,lsl#4
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eor $t0,$t0,$Ahi,lsr#2
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eor $t1,$t1,$Alo,lsr#2
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eor $t0,$t0,$Alo,lsl#30
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eor $t1,$t1,$Ahi,lsl#30
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eor $t0,$t0,$Ahi,lsr#7
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eor $t1,$t1,$Alo,lsr#7
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eor $t0,$t0,$Alo,lsl#25
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eor $t1,$t1,$Ahi,lsl#25 @ Sigma0(a)
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adds $Tlo,$Tlo,$t0
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and $t0,$Alo,$t2
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adc $Thi,$Thi,$t1 @ T += Sigma0(a)
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ldr $t1,[sp,#$Boff+4] @ b.hi
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orr $Alo,$Alo,$t2
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ldr $t2,[sp,#$Coff+4] @ c.hi
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and $Alo,$Alo,$t3
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and $t3,$Ahi,$t1
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orr $Ahi,$Ahi,$t1
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orr $Alo,$Alo,$t0 @ Maj(a,b,c).lo
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and $Ahi,$Ahi,$t2
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adds $Alo,$Alo,$Tlo
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orr $Ahi,$Ahi,$t3 @ Maj(a,b,c).hi
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sub sp,sp,#8
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adc $Ahi,$Ahi,$Thi @ h += T
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tst $Ktbl,#1
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add $Ktbl,$Ktbl,#8
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___
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}
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$code=<<___;
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#ifndef __KERNEL__
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# include "arm_arch.h"
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# define VFP_ABI_PUSH vstmdb sp!,{d8-d15}
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# define VFP_ABI_POP vldmia sp!,{d8-d15}
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#else
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# define __ARM_ARCH__ __LINUX_ARM_ARCH__
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# define __ARM_MAX_ARCH__ 7
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# define VFP_ABI_PUSH
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# define VFP_ABI_POP
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#endif
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#ifdef __ARMEL__
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# define LO 0
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# define HI 4
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# define WORD64(hi0,lo0,hi1,lo1) .word lo0,hi0, lo1,hi1
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#else
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# define HI 0
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# define LO 4
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# define WORD64(hi0,lo0,hi1,lo1) .word hi0,lo0, hi1,lo1
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#endif
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.text
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#if defined(__thumb2__)
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.syntax unified
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.thumb
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# define adrl adr
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#else
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.code 32
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#endif
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.type K512,%object
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.align 5
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K512:
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WORD64(0x428a2f98,0xd728ae22, 0x71374491,0x23ef65cd)
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WORD64(0xb5c0fbcf,0xec4d3b2f, 0xe9b5dba5,0x8189dbbc)
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WORD64(0x3956c25b,0xf348b538, 0x59f111f1,0xb605d019)
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WORD64(0x923f82a4,0xaf194f9b, 0xab1c5ed5,0xda6d8118)
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WORD64(0xd807aa98,0xa3030242, 0x12835b01,0x45706fbe)
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WORD64(0x243185be,0x4ee4b28c, 0x550c7dc3,0xd5ffb4e2)
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WORD64(0x72be5d74,0xf27b896f, 0x80deb1fe,0x3b1696b1)
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WORD64(0x9bdc06a7,0x25c71235, 0xc19bf174,0xcf692694)
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WORD64(0xe49b69c1,0x9ef14ad2, 0xefbe4786,0x384f25e3)
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WORD64(0x0fc19dc6,0x8b8cd5b5, 0x240ca1cc,0x77ac9c65)
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WORD64(0x2de92c6f,0x592b0275, 0x4a7484aa,0x6ea6e483)
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WORD64(0x5cb0a9dc,0xbd41fbd4, 0x76f988da,0x831153b5)
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WORD64(0x983e5152,0xee66dfab, 0xa831c66d,0x2db43210)
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WORD64(0xb00327c8,0x98fb213f, 0xbf597fc7,0xbeef0ee4)
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WORD64(0xc6e00bf3,0x3da88fc2, 0xd5a79147,0x930aa725)
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WORD64(0x06ca6351,0xe003826f, 0x14292967,0x0a0e6e70)
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WORD64(0x27b70a85,0x46d22ffc, 0x2e1b2138,0x5c26c926)
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WORD64(0x4d2c6dfc,0x5ac42aed, 0x53380d13,0x9d95b3df)
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WORD64(0x650a7354,0x8baf63de, 0x766a0abb,0x3c77b2a8)
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WORD64(0x81c2c92e,0x47edaee6, 0x92722c85,0x1482353b)
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WORD64(0xa2bfe8a1,0x4cf10364, 0xa81a664b,0xbc423001)
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WORD64(0xc24b8b70,0xd0f89791, 0xc76c51a3,0x0654be30)
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WORD64(0xd192e819,0xd6ef5218, 0xd6990624,0x5565a910)
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WORD64(0xf40e3585,0x5771202a, 0x106aa070,0x32bbd1b8)
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WORD64(0x19a4c116,0xb8d2d0c8, 0x1e376c08,0x5141ab53)
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WORD64(0x2748774c,0xdf8eeb99, 0x34b0bcb5,0xe19b48a8)
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WORD64(0x391c0cb3,0xc5c95a63, 0x4ed8aa4a,0xe3418acb)
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WORD64(0x5b9cca4f,0x7763e373, 0x682e6ff3,0xd6b2b8a3)
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WORD64(0x748f82ee,0x5defb2fc, 0x78a5636f,0x43172f60)
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WORD64(0x84c87814,0xa1f0ab72, 0x8cc70208,0x1a6439ec)
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WORD64(0x90befffa,0x23631e28, 0xa4506ceb,0xde82bde9)
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WORD64(0xbef9a3f7,0xb2c67915, 0xc67178f2,0xe372532b)
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WORD64(0xca273ece,0xea26619c, 0xd186b8c7,0x21c0c207)
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WORD64(0xeada7dd6,0xcde0eb1e, 0xf57d4f7f,0xee6ed178)
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WORD64(0x06f067aa,0x72176fba, 0x0a637dc5,0xa2c898a6)
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WORD64(0x113f9804,0xbef90dae, 0x1b710b35,0x131c471b)
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WORD64(0x28db77f5,0x23047d84, 0x32caab7b,0x40c72493)
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WORD64(0x3c9ebe0a,0x15c9bebc, 0x431d67c4,0x9c100d4c)
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WORD64(0x4cc5d4be,0xcb3e42b6, 0x597f299c,0xfc657e2a)
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WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817)
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.size K512,.-K512
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#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
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.LOPENSSL_armcap:
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.word OPENSSL_armcap_P-.Lsha512_block_data_order
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.skip 32-4
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#else
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.skip 32
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#endif
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.global sha512_block_data_order
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.type sha512_block_data_order,%function
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sha512_block_data_order:
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.Lsha512_block_data_order:
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#if __ARM_ARCH__<7 && !defined(__thumb2__)
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sub r3,pc,#8 @ sha512_block_data_order
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#else
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adr r3,.Lsha512_block_data_order
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#endif
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#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
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ldr r12,.LOPENSSL_armcap
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ldr r12,[r3,r12] @ OPENSSL_armcap_P
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#ifdef __APPLE__
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ldr r12,[r12]
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#endif
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tst r12,#ARMV7_NEON
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bne .LNEON
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#endif
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add $len,$inp,$len,lsl#7 @ len to point at the end of inp
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stmdb sp!,{r4-r12,lr}
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sub $Ktbl,r3,#672 @ K512
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sub sp,sp,#9*8
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ldr $Elo,[$ctx,#$Eoff+$lo]
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ldr $Ehi,[$ctx,#$Eoff+$hi]
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ldr $t0, [$ctx,#$Goff+$lo]
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ldr $t1, [$ctx,#$Goff+$hi]
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ldr $t2, [$ctx,#$Hoff+$lo]
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ldr $t3, [$ctx,#$Hoff+$hi]
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.Loop:
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str $t0, [sp,#$Goff+0]
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str $t1, [sp,#$Goff+4]
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str $t2, [sp,#$Hoff+0]
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str $t3, [sp,#$Hoff+4]
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ldr $Alo,[$ctx,#$Aoff+$lo]
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ldr $Ahi,[$ctx,#$Aoff+$hi]
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ldr $Tlo,[$ctx,#$Boff+$lo]
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ldr $Thi,[$ctx,#$Boff+$hi]
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ldr $t0, [$ctx,#$Coff+$lo]
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ldr $t1, [$ctx,#$Coff+$hi]
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ldr $t2, [$ctx,#$Doff+$lo]
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ldr $t3, [$ctx,#$Doff+$hi]
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str $Tlo,[sp,#$Boff+0]
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str $Thi,[sp,#$Boff+4]
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str $t0, [sp,#$Coff+0]
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str $t1, [sp,#$Coff+4]
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str $t2, [sp,#$Doff+0]
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str $t3, [sp,#$Doff+4]
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ldr $Tlo,[$ctx,#$Foff+$lo]
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ldr $Thi,[$ctx,#$Foff+$hi]
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str $Tlo,[sp,#$Foff+0]
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str $Thi,[sp,#$Foff+4]
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.L00_15:
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#if __ARM_ARCH__<7
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ldrb $Tlo,[$inp,#7]
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ldrb $t0, [$inp,#6]
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ldrb $t1, [$inp,#5]
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ldrb $t2, [$inp,#4]
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ldrb $Thi,[$inp,#3]
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ldrb $t3, [$inp,#2]
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orr $Tlo,$Tlo,$t0,lsl#8
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ldrb $t0, [$inp,#1]
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orr $Tlo,$Tlo,$t1,lsl#16
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ldrb $t1, [$inp],#8
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orr $Tlo,$Tlo,$t2,lsl#24
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orr $Thi,$Thi,$t3,lsl#8
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orr $Thi,$Thi,$t0,lsl#16
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orr $Thi,$Thi,$t1,lsl#24
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#else
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ldr $Tlo,[$inp,#4]
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ldr $Thi,[$inp],#8
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#ifdef __ARMEL__
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rev $Tlo,$Tlo
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rev $Thi,$Thi
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#endif
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#endif
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___
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&BODY_00_15(0x94);
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$code.=<<___;
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tst $Ktbl,#1
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beq .L00_15
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ldr $t0,[sp,#`$Xoff+8*(16-1)`+0]
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ldr $t1,[sp,#`$Xoff+8*(16-1)`+4]
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bic $Ktbl,$Ktbl,#1
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.L16_79:
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@ sigma0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7))
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@ LO lo>>1^hi<<31 ^ lo>>8^hi<<24 ^ lo>>7^hi<<25
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@ HI hi>>1^lo<<31 ^ hi>>8^lo<<24 ^ hi>>7
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mov $Tlo,$t0,lsr#1
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ldr $t2,[sp,#`$Xoff+8*(16-14)`+0]
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mov $Thi,$t1,lsr#1
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ldr $t3,[sp,#`$Xoff+8*(16-14)`+4]
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eor $Tlo,$Tlo,$t1,lsl#31
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eor $Thi,$Thi,$t0,lsl#31
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eor $Tlo,$Tlo,$t0,lsr#8
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eor $Thi,$Thi,$t1,lsr#8
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eor $Tlo,$Tlo,$t1,lsl#24
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eor $Thi,$Thi,$t0,lsl#24
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eor $Tlo,$Tlo,$t0,lsr#7
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eor $Thi,$Thi,$t1,lsr#7
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eor $Tlo,$Tlo,$t1,lsl#25
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@ sigma1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6))
|
|
@ LO lo>>19^hi<<13 ^ hi>>29^lo<<3 ^ lo>>6^hi<<26
|
|
@ HI hi>>19^lo<<13 ^ lo>>29^hi<<3 ^ hi>>6
|
|
mov $t0,$t2,lsr#19
|
|
mov $t1,$t3,lsr#19
|
|
eor $t0,$t0,$t3,lsl#13
|
|
eor $t1,$t1,$t2,lsl#13
|
|
eor $t0,$t0,$t3,lsr#29
|
|
eor $t1,$t1,$t2,lsr#29
|
|
eor $t0,$t0,$t2,lsl#3
|
|
eor $t1,$t1,$t3,lsl#3
|
|
eor $t0,$t0,$t2,lsr#6
|
|
eor $t1,$t1,$t3,lsr#6
|
|
ldr $t2,[sp,#`$Xoff+8*(16-9)`+0]
|
|
eor $t0,$t0,$t3,lsl#26
|
|
|
|
ldr $t3,[sp,#`$Xoff+8*(16-9)`+4]
|
|
adds $Tlo,$Tlo,$t0
|
|
ldr $t0,[sp,#`$Xoff+8*16`+0]
|
|
adc $Thi,$Thi,$t1
|
|
|
|
ldr $t1,[sp,#`$Xoff+8*16`+4]
|
|
adds $Tlo,$Tlo,$t2
|
|
adc $Thi,$Thi,$t3
|
|
adds $Tlo,$Tlo,$t0
|
|
adc $Thi,$Thi,$t1
|
|
___
|
|
&BODY_00_15(0x17);
|
|
$code.=<<___;
|
|
#if __ARM_ARCH__>=7
|
|
ittt eq @ Thumb2 thing, sanity check in ARM
|
|
#endif
|
|
ldreq $t0,[sp,#`$Xoff+8*(16-1)`+0]
|
|
ldreq $t1,[sp,#`$Xoff+8*(16-1)`+4]
|
|
beq .L16_79
|
|
bic $Ktbl,$Ktbl,#1
|
|
|
|
ldr $Tlo,[sp,#$Boff+0]
|
|
ldr $Thi,[sp,#$Boff+4]
|
|
ldr $t0, [$ctx,#$Aoff+$lo]
|
|
ldr $t1, [$ctx,#$Aoff+$hi]
|
|
ldr $t2, [$ctx,#$Boff+$lo]
|
|
ldr $t3, [$ctx,#$Boff+$hi]
|
|
adds $t0,$Alo,$t0
|
|
str $t0, [$ctx,#$Aoff+$lo]
|
|
adc $t1,$Ahi,$t1
|
|
str $t1, [$ctx,#$Aoff+$hi]
|
|
adds $t2,$Tlo,$t2
|
|
str $t2, [$ctx,#$Boff+$lo]
|
|
adc $t3,$Thi,$t3
|
|
str $t3, [$ctx,#$Boff+$hi]
|
|
|
|
ldr $Alo,[sp,#$Coff+0]
|
|
ldr $Ahi,[sp,#$Coff+4]
|
|
ldr $Tlo,[sp,#$Doff+0]
|
|
ldr $Thi,[sp,#$Doff+4]
|
|
ldr $t0, [$ctx,#$Coff+$lo]
|
|
ldr $t1, [$ctx,#$Coff+$hi]
|
|
ldr $t2, [$ctx,#$Doff+$lo]
|
|
ldr $t3, [$ctx,#$Doff+$hi]
|
|
adds $t0,$Alo,$t0
|
|
str $t0, [$ctx,#$Coff+$lo]
|
|
adc $t1,$Ahi,$t1
|
|
str $t1, [$ctx,#$Coff+$hi]
|
|
adds $t2,$Tlo,$t2
|
|
str $t2, [$ctx,#$Doff+$lo]
|
|
adc $t3,$Thi,$t3
|
|
str $t3, [$ctx,#$Doff+$hi]
|
|
|
|
ldr $Tlo,[sp,#$Foff+0]
|
|
ldr $Thi,[sp,#$Foff+4]
|
|
ldr $t0, [$ctx,#$Eoff+$lo]
|
|
ldr $t1, [$ctx,#$Eoff+$hi]
|
|
ldr $t2, [$ctx,#$Foff+$lo]
|
|
ldr $t3, [$ctx,#$Foff+$hi]
|
|
adds $Elo,$Elo,$t0
|
|
str $Elo,[$ctx,#$Eoff+$lo]
|
|
adc $Ehi,$Ehi,$t1
|
|
str $Ehi,[$ctx,#$Eoff+$hi]
|
|
adds $t2,$Tlo,$t2
|
|
str $t2, [$ctx,#$Foff+$lo]
|
|
adc $t3,$Thi,$t3
|
|
str $t3, [$ctx,#$Foff+$hi]
|
|
|
|
ldr $Alo,[sp,#$Goff+0]
|
|
ldr $Ahi,[sp,#$Goff+4]
|
|
ldr $Tlo,[sp,#$Hoff+0]
|
|
ldr $Thi,[sp,#$Hoff+4]
|
|
ldr $t0, [$ctx,#$Goff+$lo]
|
|
ldr $t1, [$ctx,#$Goff+$hi]
|
|
ldr $t2, [$ctx,#$Hoff+$lo]
|
|
ldr $t3, [$ctx,#$Hoff+$hi]
|
|
adds $t0,$Alo,$t0
|
|
str $t0, [$ctx,#$Goff+$lo]
|
|
adc $t1,$Ahi,$t1
|
|
str $t1, [$ctx,#$Goff+$hi]
|
|
adds $t2,$Tlo,$t2
|
|
str $t2, [$ctx,#$Hoff+$lo]
|
|
adc $t3,$Thi,$t3
|
|
str $t3, [$ctx,#$Hoff+$hi]
|
|
|
|
add sp,sp,#640
|
|
sub $Ktbl,$Ktbl,#640
|
|
|
|
teq $inp,$len
|
|
bne .Loop
|
|
|
|
add sp,sp,#8*9 @ destroy frame
|
|
#if __ARM_ARCH__>=5
|
|
ldmia sp!,{r4-r12,pc}
|
|
#else
|
|
ldmia sp!,{r4-r12,lr}
|
|
tst lr,#1
|
|
moveq pc,lr @ be binary compatible with V4, yet
|
|
bx lr @ interoperable with Thumb ISA:-)
|
|
#endif
|
|
.size sha512_block_data_order,.-sha512_block_data_order
|
|
___
|
|
|
|
{
|
|
my @Sigma0=(28,34,39);
|
|
my @Sigma1=(14,18,41);
|
|
my @sigma0=(1, 8, 7);
|
|
my @sigma1=(19,61,6);
|
|
|
|
my $Ktbl="r3";
|
|
my $cnt="r12"; # volatile register known as ip, intra-procedure-call scratch
|
|
|
|
my @X=map("d$_",(0..15));
|
|
my @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("d$_",(16..23));
|
|
|
|
sub NEON_00_15() {
|
|
my $i=shift;
|
|
my ($a,$b,$c,$d,$e,$f,$g,$h)=@_;
|
|
my ($t0,$t1,$t2,$T1,$K,$Ch,$Maj)=map("d$_",(24..31)); # temps
|
|
|
|
$code.=<<___ if ($i<16 || $i&1);
|
|
vshr.u64 $t0,$e,#@Sigma1[0] @ $i
|
|
#if $i<16
|
|
vld1.64 {@X[$i%16]},[$inp]! @ handles unaligned
|
|
#endif
|
|
vshr.u64 $t1,$e,#@Sigma1[1]
|
|
#if $i>0
|
|
vadd.i64 $a,$Maj @ h+=Maj from the past
|
|
#endif
|
|
vshr.u64 $t2,$e,#@Sigma1[2]
|
|
___
|
|
$code.=<<___;
|
|
vld1.64 {$K},[$Ktbl,:64]! @ K[i++]
|
|
vsli.64 $t0,$e,#`64-@Sigma1[0]`
|
|
vsli.64 $t1,$e,#`64-@Sigma1[1]`
|
|
vmov $Ch,$e
|
|
vsli.64 $t2,$e,#`64-@Sigma1[2]`
|
|
#if $i<16 && defined(__ARMEL__)
|
|
vrev64.8 @X[$i],@X[$i]
|
|
#endif
|
|
veor $t1,$t0
|
|
vbsl $Ch,$f,$g @ Ch(e,f,g)
|
|
vshr.u64 $t0,$a,#@Sigma0[0]
|
|
veor $t2,$t1 @ Sigma1(e)
|
|
vadd.i64 $T1,$Ch,$h
|
|
vshr.u64 $t1,$a,#@Sigma0[1]
|
|
vsli.64 $t0,$a,#`64-@Sigma0[0]`
|
|
vadd.i64 $T1,$t2
|
|
vshr.u64 $t2,$a,#@Sigma0[2]
|
|
vadd.i64 $K,@X[$i%16]
|
|
vsli.64 $t1,$a,#`64-@Sigma0[1]`
|
|
veor $Maj,$a,$b
|
|
vsli.64 $t2,$a,#`64-@Sigma0[2]`
|
|
veor $h,$t0,$t1
|
|
vadd.i64 $T1,$K
|
|
vbsl $Maj,$c,$b @ Maj(a,b,c)
|
|
veor $h,$t2 @ Sigma0(a)
|
|
vadd.i64 $d,$T1
|
|
vadd.i64 $Maj,$T1
|
|
@ vadd.i64 $h,$Maj
|
|
___
|
|
}
|
|
|
|
sub NEON_16_79() {
|
|
my $i=shift;
|
|
|
|
if ($i&1) { &NEON_00_15($i,@_); return; }
|
|
|
|
# 2x-vectorized, therefore runs every 2nd round
|
|
my @X=map("q$_",(0..7)); # view @X as 128-bit vector
|
|
my ($t0,$t1,$s0,$s1) = map("q$_",(12..15)); # temps
|
|
my ($d0,$d1,$d2) = map("d$_",(24..26)); # temps from NEON_00_15
|
|
my $e=@_[4]; # $e from NEON_00_15
|
|
$i /= 2;
|
|
$code.=<<___;
|
|
vshr.u64 $t0,@X[($i+7)%8],#@sigma1[0]
|
|
vshr.u64 $t1,@X[($i+7)%8],#@sigma1[1]
|
|
vadd.i64 @_[0],d30 @ h+=Maj from the past
|
|
vshr.u64 $s1,@X[($i+7)%8],#@sigma1[2]
|
|
vsli.64 $t0,@X[($i+7)%8],#`64-@sigma1[0]`
|
|
vext.8 $s0,@X[$i%8],@X[($i+1)%8],#8 @ X[i+1]
|
|
vsli.64 $t1,@X[($i+7)%8],#`64-@sigma1[1]`
|
|
veor $s1,$t0
|
|
vshr.u64 $t0,$s0,#@sigma0[0]
|
|
veor $s1,$t1 @ sigma1(X[i+14])
|
|
vshr.u64 $t1,$s0,#@sigma0[1]
|
|
vadd.i64 @X[$i%8],$s1
|
|
vshr.u64 $s1,$s0,#@sigma0[2]
|
|
vsli.64 $t0,$s0,#`64-@sigma0[0]`
|
|
vsli.64 $t1,$s0,#`64-@sigma0[1]`
|
|
vext.8 $s0,@X[($i+4)%8],@X[($i+5)%8],#8 @ X[i+9]
|
|
veor $s1,$t0
|
|
vshr.u64 $d0,$e,#@Sigma1[0] @ from NEON_00_15
|
|
vadd.i64 @X[$i%8],$s0
|
|
vshr.u64 $d1,$e,#@Sigma1[1] @ from NEON_00_15
|
|
veor $s1,$t1 @ sigma0(X[i+1])
|
|
vshr.u64 $d2,$e,#@Sigma1[2] @ from NEON_00_15
|
|
vadd.i64 @X[$i%8],$s1
|
|
___
|
|
&NEON_00_15(2*$i,@_);
|
|
}
|
|
|
|
$code.=<<___;
|
|
#if __ARM_MAX_ARCH__>=7
|
|
.arch armv7-a
|
|
.fpu neon
|
|
|
|
.global sha512_block_data_order_neon
|
|
.type sha512_block_data_order_neon,%function
|
|
.align 4
|
|
sha512_block_data_order_neon:
|
|
.LNEON:
|
|
dmb @ errata #451034 on early Cortex A8
|
|
add $len,$inp,$len,lsl#7 @ len to point at the end of inp
|
|
adr $Ktbl,K512
|
|
VFP_ABI_PUSH
|
|
vldmia $ctx,{$A-$H} @ load context
|
|
.Loop_neon:
|
|
___
|
|
for($i=0;$i<16;$i++) { &NEON_00_15($i,@V); unshift(@V,pop(@V)); }
|
|
$code.=<<___;
|
|
mov $cnt,#4
|
|
.L16_79_neon:
|
|
subs $cnt,#1
|
|
___
|
|
for(;$i<32;$i++) { &NEON_16_79($i,@V); unshift(@V,pop(@V)); }
|
|
$code.=<<___;
|
|
bne .L16_79_neon
|
|
|
|
vadd.i64 $A,d30 @ h+=Maj from the past
|
|
vldmia $ctx,{d24-d31} @ load context to temp
|
|
vadd.i64 q8,q12 @ vectorized accumulate
|
|
vadd.i64 q9,q13
|
|
vadd.i64 q10,q14
|
|
vadd.i64 q11,q15
|
|
vstmia $ctx,{$A-$H} @ save context
|
|
teq $inp,$len
|
|
sub $Ktbl,#640 @ rewind K512
|
|
bne .Loop_neon
|
|
|
|
VFP_ABI_POP
|
|
ret @ bx lr
|
|
.size sha512_block_data_order_neon,.-sha512_block_data_order_neon
|
|
#endif
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
.asciz "SHA512 block transform for ARMv4/NEON, CRYPTOGAMS by <appro\@openssl.org>"
|
|
.align 2
|
|
#if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__)
|
|
.comm OPENSSL_armcap_P,4,4
|
|
#endif
|
|
___
|
|
|
|
$code =~ s/\`([^\`]*)\`/eval $1/gem;
|
|
$code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
|
|
$code =~ s/\bret\b/bx lr/gm;
|
|
|
|
open SELF,$0;
|
|
while(<SELF>) {
|
|
next if (/^#!/);
|
|
last if (!s/^#/@/ and !/^$/);
|
|
print;
|
|
}
|
|
close SELF;
|
|
|
|
print $code;
|
|
close STDOUT; # enforce flush
|