diff options
-rw-r--r-- | crypto/chacha/Makefile.in | 3 | ||||
-rwxr-xr-x | crypto/chacha/asm/chacha-armv4.pl | 1144 | ||||
-rwxr-xr-x | crypto/chacha/asm/chacha-armv8.pl | 1126 | ||||
-rw-r--r-- | crypto/poly1305/Makefile.in | 3 | ||||
-rwxr-xr-x | crypto/poly1305/asm/poly1305-armv4.pl | 1216 | ||||
-rwxr-xr-x | crypto/poly1305/asm/poly1305-armv8.pl | 925 |
6 files changed, 4417 insertions, 0 deletions
diff --git a/crypto/chacha/Makefile.in b/crypto/chacha/Makefile.in index 6fb63c184b..dd0f36ce00 100644 --- a/crypto/chacha/Makefile.in +++ b/crypto/chacha/Makefile.in @@ -43,6 +43,9 @@ chacha-x86_64.s: asm/chacha-x86_64.pl chacha-%.S: asm/chacha-%.pl; $(PERL) $< $(PERLASM_SCHEME) $@ +chacha-armv4.o: chacha-armv4.S +chacha-armv8.o: chacha-armv8.S + files: $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO diff --git a/crypto/chacha/asm/chacha-armv4.pl b/crypto/chacha/asm/chacha-armv4.pl new file mode 100755 index 0000000000..4d234b7275 --- /dev/null +++ b/crypto/chacha/asm/chacha-armv4.pl @@ -0,0 +1,1144 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# December 2014 +# +# ChaCha20 for ARMv4. +# +# Performance in cycles per byte out of large buffer. +# +# IALU/gcc-4.4 1xNEON 3xNEON+1xIALU +# +# Cortex-A5 19.3(*)/+95% 21.8 14.1 +# Cortex-A8 10.5(*)/+160% 13.9 6.35 +# Cortex-A9 12.9(**)/+110% 14.3 6.50 +# Cortex-A15 11.0/+40% 16.0 5.00 +# Snapdragon S4 11.5/+125% 13.6 4.90 +# +# (*) most "favourable" result for aligned data on little-endian +# processor, result for misaligned data is 10-15% lower; +# (**) this result is a trade-off: it can be improved by 20%, +# but then Snapdragon S4 and Cortex-A8 results get +# 20-25% worse; + +$flavour = shift; +if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; } +else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} } + +if ($flavour && $flavour ne "void") { + $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; + ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or + ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or + die "can't locate arm-xlate.pl"; + + open STDOUT,"| \"$^X\" $xlate $flavour $output"; +} else { + open STDOUT,">$output"; +} + +sub AUTOLOAD() # thunk [simplified] x86-style perlasm +{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./; + my $arg = pop; + $arg = "#$arg" if ($arg*1 eq $arg); + $code .= "\t$opcode\t".join(',',@_,$arg)."\n"; +} + +my @x=map("r$_",(0..7,"x","x","x","x",12,"x",14,"x")); +my @t=map("r$_",(8..11)); + +sub ROUND { +my ($a0,$b0,$c0,$d0)=@_; +my ($a1,$b1,$c1,$d1)=map(($_&~3)+(($_+1)&3),($a0,$b0,$c0,$d0)); +my ($a2,$b2,$c2,$d2)=map(($_&~3)+(($_+1)&3),($a1,$b1,$c1,$d1)); +my ($a3,$b3,$c3,$d3)=map(($_&~3)+(($_+1)&3),($a2,$b2,$c2,$d2)); +my $odd = $d0&1; +my ($xc,$xc_) = (@t[0..1]); +my ($xd,$xd_) = $odd ? (@t[2],@x[$d1]) : (@x[$d0],@t[2]); +my @ret; + + # Consider order in which variables are addressed by their + # index: + # + # a b c d + # + # 0 4 8 12 < even round + # 1 5 9 13 + # 2 6 10 14 + # 3 7 11 15 + # 0 5 10 15 < odd round + # 1 6 11 12 + # 2 7 8 13 + # 3 4 9 14 + # + # 'a', 'b' are permanently allocated in registers, @x[0..7], + # while 'c's and pair of 'd's are maintained in memory. If + # you observe 'c' column, you'll notice that pair of 'c's is + # invariant between rounds. This means that we have to reload + # them once per round, in the middle. This is why you'll see + # bunch of 'c' stores and loads in the middle, but none in + # the beginning or end. If you observe 'd' column, you'll + # notice that 15 and 13 are reused in next pair of rounds. + # This is why these two are chosen for offloading to memory, + # to make loads count more. + push @ret,( + "&add (@x[$a0],@x[$a0],@x[$b0])", + "&mov ($xd,$xd,'ror#16')", + "&add (@x[$a1],@x[$a1],@x[$b1])", + "&mov ($xd_,$xd_,'ror#16')", + "&eor ($xd,$xd,@x[$a0],'ror#16')", + "&eor ($xd_,$xd_,@x[$a1],'ror#16')", + + "&add ($xc,$xc,$xd)", + "&mov (@x[$b0],@x[$b0],'ror#20')", + "&add ($xc_,$xc_,$xd_)", + "&mov (@x[$b1],@x[$b1],'ror#20')", + "&eor (@x[$b0],@x[$b0],$xc,'ror#20')", + "&eor (@x[$b1],@x[$b1],$xc_,'ror#20')", + + "&add (@x[$a0],@x[$a0],@x[$b0])", + "&mov ($xd,$xd,'ror#24')", + "&add (@x[$a1],@x[$a1],@x[$b1])", + "&mov ($xd_,$xd_,'ror#24')", + "&eor ($xd,$xd,@x[$a0],'ror#24')", + "&eor ($xd_,$xd_,@x[$a1],'ror#24')", + + "&add ($xc,$xc,$xd)", + "&mov (@x[$b0],@x[$b0],'ror#25')" ); + push @ret,( + "&str ($xd,'[sp,#4*(16+$d0)]')", + "&ldr ($xd,'[sp,#4*(16+$d2)]')" ) if ($odd); + push @ret,( + "&add ($xc_,$xc_,$xd_)", + "&mov (@x[$b1],@x[$b1],'ror#25')" ); + push @ret,( + "&str ($xd_,'[sp,#4*(16+$d1)]')", + "&ldr ($xd_,'[sp,#4*(16+$d3)]')" ) if (!$odd); + push @ret,( + "&eor (@x[$b0],@x[$b0],$xc,'ror#25')", + "&eor (@x[$b1],@x[$b1],$xc_,'ror#25')" ); + + $xd=@x[$d2] if (!$odd); + $xd_=@x[$d3] if ($odd); + push @ret,( + "&str ($xc,'[sp,#4*(16+$c0)]')", + "&ldr ($xc,'[sp,#4*(16+$c2)]')", + "&add (@x[$a2],@x[$a2],@x[$b2])", + "&mov ($xd,$xd,'ror#16')", + "&str ($xc_,'[sp,#4*(16+$c1)]')", + "&ldr ($xc_,'[sp,#4*(16+$c3)]')", + "&add (@x[$a3],@x[$a3],@x[$b3])", + "&mov ($xd_,$xd_,'ror#16')", + "&eor ($xd,$xd,@x[$a2],'ror#16')", + "&eor ($xd_,$xd_,@x[$a3],'ror#16')", + + "&add ($xc,$xc,$xd)", + "&mov (@x[$b2],@x[$b2],'ror#20')", + "&add ($xc_,$xc_,$xd_)", + "&mov (@x[$b3],@x[$b3],'ror#20')", + "&eor (@x[$b2],@x[$b2],$xc,'ror#20')", + "&eor (@x[$b3],@x[$b3],$xc_,'ror#20')", + + "&add (@x[$a2],@x[$a2],@x[$b2])", + "&mov ($xd,$xd,'ror#24')", + "&add (@x[$a3],@x[$a3],@x[$b3])", + "&mov ($xd_,$xd_,'ror#24')", + "&eor ($xd,$xd,@x[$a2],'ror#24')", + "&eor ($xd_,$xd_,@x[$a3],'ror#24')", + + "&add ($xc,$xc,$xd)", + "&mov (@x[$b2],@x[$b2],'ror#25')", + "&add ($xc_,$xc_,$xd_)", + "&mov (@x[$b3],@x[$b3],'ror#25')", + "&eor (@x[$b2],@x[$b2],$xc,'ror#25')", + "&eor (@x[$b3],@x[$b3],$xc_,'ror#25')" ); + + @ret; +} + +$code.=<<___; +#include "arm_arch.h" + +.text +#if defined(__thumb2__) +.syntax unified +.thumb +#else +.code 32 +#endif + +#if defined(__thumb2__) || defined(__clang__) +#define ldrhsb ldrbhs +#endif + +.align 5 +.Lsigma: +.long 0x61707865,0x3320646e,0x79622d32,0x6b206574 @ endian-neutral +.Lone: +.long 1,0,0,0 +#if __ARM_MAX_ARCH__>=7 +.LOPENSSL_armcap: +.word OPENSSL_armcap_P-.LChaCha20_ctr32 +#else +.word -1 +#endif + +.globl ChaCha20_ctr32 +.type ChaCha20_ctr32,%function +.align 5 +ChaCha20_ctr32: +.LChaCha20_ctr32: + ldr r12,[sp,#0] @ pull pointer to counter and nonce + stmdb sp!,{r0-r2,r4-r11,lr} +#if __ARM_ARCH__<7 && !defined(__thumb2__) + sub r14,pc,#16 @ ChaCha20_ctr32 +#else + adr r14,.LChaCha20_ctr32 +#endif +#if __ARM_MAX_ARCH__>=7 + cmp r2,#192 @ test len + bls .Lshort + ldr r4,[r14,#-32] + ldr r4,[r14,r4] +# ifdef __APPLE__ + ldr r4,[r4] +# endif + tst r4,#1 + bne .LChaCha20_neon +.Lshort: +#endif + ldmia r12,{r4-r7} @ load counter and nonce + sub sp,sp,#4*(16) @ off-load area + sub r14,r14,#64 @ .Lsigma + stmdb sp!,{r4-r7} @ copy counter and nonce + ldmia r3,{r4-r11} @ load key + ldmia r14,{r0-r3} @ load sigma + stmdb sp!,{r4-r11} @ copy key + stmdb sp!,{r0-r3} @ copy sigma + str r10,[sp,#4*(16+10)] @ off-load "@x[10]" + str r11,[sp,#4*(16+11)] @ off-load "@x[11]" + b .Loop_outer_enter + +.align 4 +.Loop_outer: + ldmia sp,{r0-r9} @ load key material + str @t[3],[sp,#4*(32+2)] @ save len + str r12, [sp,#4*(32+1)] @ save inp + str r14, [sp,#4*(32+0)] @ save out +.Loop_outer_enter: + ldr @t[3], [sp,#4*(15)] + ldr @x[12],[sp,#4*(12)] @ modulo-scheduled load + ldr @t[2], [sp,#4*(13)] + ldr @x[14],[sp,#4*(14)] + str @t[3], [sp,#4*(16+15)] + mov @t[3],#10 + b .Loop + +.align 4 +.Loop: + subs @t[3],@t[3],#1 +___ + foreach (&ROUND(0, 4, 8,12)) { eval; } + foreach (&ROUND(0, 5,10,15)) { eval; } +$code.=<<___; + bne .Loop + + ldr @t[3],[sp,#4*(32+2)] @ load len + + str @t[0], [sp,#4*(16+8)] @ modulo-scheduled store + str @t[1], [sp,#4*(16+9)] + str @x[12],[sp,#4*(16+12)] + str @t[2], [sp,#4*(16+13)] + str @x[14],[sp,#4*(16+14)] + + @ at this point we have first half of 512-bit result in + @ @x[0-7] and second half at sp+4*(16+8) + + cmp @t[3],#64 @ done yet? +#ifdef __thumb2__ + itete lo +#endif + addlo r12,sp,#4*(0) @ shortcut or ... + ldrhs r12,[sp,#4*(32+1)] @ ... load inp + addlo r14,sp,#4*(0) @ shortcut or ... + ldrhs r14,[sp,#4*(32+0)] @ ... load out + + ldr @t[0],[sp,#4*(0)] @ load key material + ldr @t[1],[sp,#4*(1)] + +#if __ARM_ARCH__>=6 || !defined(__ARMEB__) +# if __ARM_ARCH__<7 + orr @t[2],r12,r14 + tst @t[2],#3 @ are input and output aligned? + ldr @t[2],[sp,#4*(2)] + bne .Lunaligned + cmp @t[3],#64 @ restore flags +# else + ldr @t[2],[sp,#4*(2)] +# endif + ldr @t[3],[sp,#4*(3)] + + add @x[0],@x[0],@t[0] @ accumulate key material + add @x[1],@x[1],@t[1] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[0],[r12],#16 @ load input + ldrhs @t[1],[r12,#-12] + + add @x[2],@x[2],@t[2] + add @x[3],@x[3],@t[3] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[2],[r12,#-8] + ldrhs @t[3],[r12,#-4] +# if __ARM_ARCH__>=6 && defined(__ARMEB__) + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] +# endif +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[0],@x[0],@t[0] @ xor with input + eorhs @x[1],@x[1],@t[1] + add @t[0],sp,#4*(4) + str @x[0],[r14],#16 @ store output +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[2],@x[2],@t[2] + eorhs @x[3],@x[3],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[1],[r14,#-12] + str @x[2],[r14,#-8] + str @x[3],[r14,#-4] + + add @x[4],@x[4],@t[0] @ accumulate key material + add @x[5],@x[5],@t[1] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[0],[r12],#16 @ load input + ldrhs @t[1],[r12,#-12] + add @x[6],@x[6],@t[2] + add @x[7],@x[7],@t[3] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[2],[r12,#-8] + ldrhs @t[3],[r12,#-4] +# if __ARM_ARCH__>=6 && defined(__ARMEB__) + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[4],@x[4],@t[0] + eorhs @x[5],@x[5],@t[1] + add @t[0],sp,#4*(8) + str @x[4],[r14],#16 @ store output +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[6],@x[6],@t[2] + eorhs @x[7],@x[7],@t[3] + str @x[5],[r14,#-12] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[6],[r14,#-8] + add @x[0],sp,#4*(16+8) + str @x[7],[r14,#-4] + + ldmia @x[0],{@x[0]-@x[7]} @ load second half + + add @x[0],@x[0],@t[0] @ accumulate key material + add @x[1],@x[1],@t[1] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[0],[r12],#16 @ load input + ldrhs @t[1],[r12,#-12] +# ifdef __thumb2__ + itt hi +# endif + strhi @t[2],[sp,#4*(16+10)] @ copy "@x[10]" while at it + strhi @t[3],[sp,#4*(16+11)] @ copy "@x[11]" while at it + add @x[2],@x[2],@t[2] + add @x[3],@x[3],@t[3] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[2],[r12,#-8] + ldrhs @t[3],[r12,#-4] +# if __ARM_ARCH__>=6 && defined(__ARMEB__) + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] +# endif +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[0],@x[0],@t[0] + eorhs @x[1],@x[1],@t[1] + add @t[0],sp,#4*(12) + str @x[0],[r14],#16 @ store output +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[2],@x[2],@t[2] + eorhs @x[3],@x[3],@t[3] + str @x[1],[r14,#-12] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[2],[r14,#-8] + str @x[3],[r14,#-4] + + add @x[4],@x[4],@t[0] @ accumulate key material + add @x[5],@x[5],@t[1] +# ifdef __thumb2__ + itt hi +# endif + addhi @t[0],@t[0],#1 @ next counter value + strhi @t[0],[sp,#4*(12)] @ save next counter value +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[0],[r12],#16 @ load input + ldrhs @t[1],[r12,#-12] + add @x[6],@x[6],@t[2] + add @x[7],@x[7],@t[3] +# ifdef __thumb2__ + itt hs +# endif + ldrhs @t[2],[r12,#-8] + ldrhs @t[3],[r12,#-4] +# if __ARM_ARCH__>=6 && defined(__ARMEB__) + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[4],@x[4],@t[0] + eorhs @x[5],@x[5],@t[1] +# ifdef __thumb2__ + it hi +# endif + ldrhi @t[0],[sp,#4*(32+2)] @ re-load len +# ifdef __thumb2__ + itt hs +# endif + eorhs @x[6],@x[6],@t[2] + eorhs @x[7],@x[7],@t[3] + str @x[4],[r14],#16 @ store output + str @x[5],[r14,#-12] +# ifdef __thumb2__ + it hs +# endif + subhs @t[3],@t[0],#64 @ len-=64 + str @x[6],[r14,#-8] + str @x[7],[r14,#-4] + bhi .Loop_outer + + beq .Ldone +# if __ARM_ARCH__<7 + b .Ltail + +.align 4 +.Lunaligned: @ unaligned endian-neutral path + cmp @t[3],#64 @ restore flags +# endif +#endif +#if __ARM_ARCH__<7 + ldr @t[3],[sp,#4*(3)] +___ +for ($i=0;$i<16;$i+=4) { +my $j=$i&0x7; + +$code.=<<___ if ($i==4); + add @x[0],sp,#4*(16+8) +___ +$code.=<<___ if ($i==8); + ldmia @x[0],{@x[0]-@x[7]} @ load second half +# ifdef __thumb2__ + itt hi +# endif + strhi @t[2],[sp,#4*(16+10)] @ copy "@x[10]" + strhi @t[3],[sp,#4*(16+11)] @ copy "@x[11]" +___ +$code.=<<___; + add @x[$j+0],@x[$j+0],@t[0] @ accumulate key material +___ +$code.=<<___ if ($i==12); +# ifdef __thumb2__ + itt hi +# endif + addhi @t[0],@t[0],#1 @ next counter value + strhi @t[0],[sp,#4*(12)] @ save next counter value +___ +$code.=<<___; + add @x[$j+1],@x[$j+1],@t[1] + add @x[$j+2],@x[$j+2],@t[2] +# ifdef __thumb2__ + itete lo +# endif + eorlo @t[0],@t[0],@t[0] @ zero or ... + ldrhsb @t[0],[r12],#16 @ ... load input + eorlo @t[1],@t[1],@t[1] + ldrhsb @t[1],[r12,#-12] + + add @x[$j+3],@x[$j+3],@t[3] +# ifdef __thumb2__ + itete lo +# endif + eorlo @t[2],@t[2],@t[2] + ldrhsb @t[2],[r12,#-8] + eorlo @t[3],@t[3],@t[3] + ldrhsb @t[3],[r12,#-4] + + eor @x[$j+0],@t[0],@x[$j+0] @ xor with input (or zero) + eor @x[$j+1],@t[1],@x[$j+1] +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[0],[r12,#-15] @ load more input + ldrhsb @t[1],[r12,#-11] + eor @x[$j+2],@t[2],@x[$j+2] + strb @x[$j+0],[r14],#16 @ store output + eor @x[$j+3],@t[3],@x[$j+3] +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[2],[r12,#-7] + ldrhsb @t[3],[r12,#-3] + strb @x[$j+1],[r14,#-12] + eor @x[$j+0],@t[0],@x[$j+0],lsr#8 + strb @x[$j+2],[r14,#-8] + eor @x[$j+1],@t[1],@x[$j+1],lsr#8 +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[0],[r12,#-14] @ load more input + ldrhsb @t[1],[r12,#-10] + strb @x[$j+3],[r14,#-4] + eor @x[$j+2],@t[2],@x[$j+2],lsr#8 + strb @x[$j+0],[r14,#-15] + eor @x[$j+3],@t[3],@x[$j+3],lsr#8 +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[2],[r12,#-6] + ldrhsb @t[3],[r12,#-2] + strb @x[$j+1],[r14,#-11] + eor @x[$j+0],@t[0],@x[$j+0],lsr#8 + strb @x[$j+2],[r14,#-7] + eor @x[$j+1],@t[1],@x[$j+1],lsr#8 +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[0],[r12,#-13] @ load more input + ldrhsb @t[1],[r12,#-9] + strb @x[$j+3],[r14,#-3] + eor @x[$j+2],@t[2],@x[$j+2],lsr#8 + strb @x[$j+0],[r14,#-14] + eor @x[$j+3],@t[3],@x[$j+3],lsr#8 +# ifdef __thumb2__ + itt hs +# endif + ldrhsb @t[2],[r12,#-5] + ldrhsb @t[3],[r12,#-1] + strb @x[$j+1],[r14,#-10] + strb @x[$j+2],[r14,#-6] + eor @x[$j+0],@t[0],@x[$j+0],lsr#8 + strb @x[$j+3],[r14,#-2] + eor @x[$j+1],@t[1],@x[$j+1],lsr#8 + strb @x[$j+0],[r14,#-13] + eor @x[$j+2],@t[2],@x[$j+2],lsr#8 + strb @x[$j+1],[r14,#-9] + eor @x[$j+3],@t[3],@x[$j+3],lsr#8 + strb @x[$j+2],[r14,#-5] + strb @x[$j+3],[r14,#-1] +___ +$code.=<<___ if ($i<12); + add @t[0],sp,#4*(4+$i) + ldmia @t[0],{@t[0]-@t[3]} @ load key material +___ +} +$code.=<<___; +# ifdef __thumb2__ + it hi +# endif + ldrhi @t[0],[sp,#4*(32+2)] @ re-load len +# ifdef __thumb2__ + it hs +# endif + subhs @t[3],@t[0],#64 @ len-=64 + bhi .Loop_outer + + beq .Ldone +#endif + +.Ltail: + ldr r12,[sp,#4*(32+1)] @ load inp + add @t[2],sp,#4*(0) + ldr r14,[sp,#4*(32+0)] @ load out + +.Loop_tail: + ldrb @t[0],[@t[2]],#1 @ read buffer on stack + ldrb @t[1],[r12],#1 @ read input + subs @t[3],@t[3],#1 + eor @t[0],@t[0],@t[1] + strb @t[0],[r14],#1 @ store output + bne .Loop_tail + +.Ldone: + add sp,sp,#4*(32+3) + ldmia sp!,{r4-r11,pc} +.size ChaCha20_ctr32,.-ChaCha20_ctr32 +___ + +{{{ +my ($a0,$b0,$c0,$d0,$a1,$b1,$c1,$d1,$a2,$b2,$c2,$d2,$t0,$t1,$t2,$t3) = + map("q$_",(0..15)); + +sub NEONROUND { +my $odd = pop; +my ($a,$b,$c,$d,$t)=@_; + + ( + "&vadd_i32 ($a,$a,$b)", + "&veor ($d,$d,$a)", + "&vrev32_16 ($d,$d)", # vrot ($d,16) + + "&vadd_i32 ($c,$c,$d)", + "&veor ($t,$b,$c)", + "&vshr_u32 ($b,$t,20)", + "&vsli_32 ($b,$t,12)", + + "&vadd_i32 ($a,$a,$b)", + "&veor ($t,$d,$a)", + "&vshr_u32 ($d,$t,24)", + "&vsli_32 ($d,$t,8)", + + "&vadd_i32 ($c,$c,$d)", + "&veor ($t,$b,$c)", + "&vshr_u32 ($b,$t,25)", + "&vsli_32 ($b,$t,7)", + + "&vext_8 ($c,$c,$c,8)", + "&vext_8 ($b,$b,$b,$odd?12:4)", + "&vext_8 ($d,$d,$d,$odd?4:12)" + ); +} + +$code.=<<___; +#if __ARM_MAX_ARCH__>=7 +.arch armv7-a +.fpu neon + +.type ChaCha20_neon,%function +.align 5 +ChaCha20_neon: + ldr r12,[sp,#0] @ pull pointer to counter and nonce + stmdb sp!,{r0-r2,r4-r11,lr} +.LChaCha20_neon: + adr r14,.Lsigma + vstmdb sp!,{d8-d15} @ ABI spec says so + stmdb sp!,{r0-r3} + + vld1.32 {$b0-$c0},[r3] @ load key + ldmia r3,{r4-r11} @ load key + + sub sp,sp,#4*(16+16) + vld1.32 {$d0},[r12] @ load counter and nonce + add r12,sp,#4*8 + ldmia r14,{r0-r3} @ load sigma + vld1.32 {$a0},[r14]! @ load sigma + vld1.32 {$t0},[r14] @ one + vst1.32 {$c0-$d0},[r12] @ copy 1/2key|counter|nonce + vst1.32 {$a0-$b0},[sp] @ copy sigma|1/2key + + str r10,[sp,#4*(16+10)] @ off-load "@x[10]" + str r11,[sp,#4*(16+11)] @ off-load "@x[11]" + vshl.i32 $t1#lo,$t0#lo,#1 @ two + vstr $t0#lo,[sp,#4*(16+0)] + vshl.i32 $t2#lo,$t0#lo,#2 @ four + vstr $t1#lo,[sp,#4*(16+2)] + vmov $a1,$a0 + vstr $t2#lo,[sp,#4*(16+4)] + vmov $a2,$a0 + vmov $b1,$b0 + vmov $b2,$b0 + b .Loop_neon_enter + +.align 4 +.Loop_neon_outer: + ldmia sp,{r0-r9} @ load key material + cmp @t[3],#64*2 @ if len<=64*2 + bls .Lbreak_neon @ switch to integer-only + vmov $a1,$a0 + str @t[3],[sp,#4*(32+2)] @ save len + vmov $a2,$a0 + str r12, [sp,#4*(32+1)] @ save inp + vmov $b1,$b0 + str r14, [sp,#4*(32+0)] @ save out + vmov $b2,$b0 +.Loop_neon_enter: + ldr @t[3], [sp,#4*(15)] + vadd.i32 $d1,$d0,$t0 @ counter+1 + ldr @x[12],[sp,#4*(12)] @ modulo-scheduled load + vmov $c1,$c0 + ldr @t[2], [sp,#4*(13)] + vmov $c2,$c0 + ldr @x[14],[sp,#4*(14)] + vadd.i32 $d2,$d1,$t0 @ counter+2 + str @t[3], [sp,#4*(16+15)] + mov @t[3],#10 + add @x[12],@x[12],#3 @ counter+3 + b .Loop_neon + +.align 4 +.Loop_neon: + subs @t[3],@t[3],#1 +___ + my @thread0=&NEONROUND($a0,$b0,$c0,$d0,$t0,0); + my @thread1=&NEONROUND($a1,$b1,$c1,$d1,$t1,0); + my @thread2=&NEONROUND($a2,$b2,$c2,$d2,$t2,0); + my @thread3=&ROUND(0,4,8,12); + + foreach (@thread0) { + eval; eval(shift(@thread3)); + eval(shift(@thread1)); eval(shift(@thread3)); + eval(shift(@thread2)); eval(shift(@thread3)); + } + + @thread0=&NEONROUND($a0,$b0,$c0,$d0,$t0,1); + @thread1=&NEONROUND($a1,$b1,$c1,$d1,$t1,1); + @thread2=&NEONROUND($a2,$b2,$c2,$d2,$t2,1); + @thread3=&ROUND(0,5,10,15); + + foreach (@thread0) { + eval; eval(shift(@thread3)); + eval(shift(@thread1)); eval(shift(@thread3)); + eval(shift(@thread2)); eval(shift(@thread3)); + } +$code.=<<___; + bne .Loop_neon + + add @t[3],sp,#32 + vld1.32 {$t0-$t1},[sp] @ load key material + vld1.32 {$t2-$t3},[@t[3]] + + ldr @t[3],[sp,#4*(32+2)] @ load len + + str @t[0], [sp,#4*(16+8)] @ modulo-scheduled store + str @t[1], [sp,#4*(16+9)] + str @x[12],[sp,#4*(16+12)] + str @t[2], [sp,#4*(16+13)] + str @x[14],[sp,#4*(16+14)] + + @ at this point we have first half of 512-bit result in + @ @x[0-7] and second half at sp+4*(16+8) + + ldr r12,[sp,#4*(32+1)] @ load inp + ldr r14,[sp,#4*(32+0)] @ load out + + vadd.i32 $a0,$a0,$t0 @ accumulate key material + vadd.i32 $a1,$a1,$t0 + vadd.i32 $a2,$a2,$t0 + vldr $t0#lo,[sp,#4*(16+0)] @ one + + vadd.i32 $b0,$b0,$t1 + vadd.i32 $b1,$b1,$t1 + vadd.i32 $b2,$b2,$t1 + vldr $t1#lo,[sp,#4*(16+2)] @ two + + vadd.i32 $c0,$c0,$t2 + vadd.i32 $c1,$c1,$t2 + vadd.i32 $c2,$c2,$t2 + vadd.i32 $d1#lo,$d1#lo,$t0#lo @ counter+1 + vadd.i32 $d2#lo,$d2#lo,$t1#lo @ counter+2 + + vadd.i32 $d0,$d0,$t3 + vadd.i32 $d1,$d1,$t3 + vadd.i32 $d2,$d2,$t3 + + cmp @t[3],#64*4 + blo .Ltail_neon + + vld1.8 {$t0-$t1},[r12]! @ load input + mov @t[3],sp + vld1.8 {$t2-$t3},[r12]! + veor $a0,$a0,$t0 @ xor with input + veor $b0,$b0,$t1 + vld1.8 {$t0-$t1},[r12]! + veor $c0,$c0,$t2 + veor $d0,$d0,$t3 + vld1.8 {$t2-$t3},[r12]! + + veor $a1,$a1,$t0 + vst1.8 {$a0-$b0},[r14]! @ store output + veor $b1,$b1,$t1 + vld1.8 {$t0-$t1},[r12]! + veor $c1,$c1,$t2 + vst1.8 {$c0-$d0},[r14]! + veor $d1,$d1,$t3 + vld1.8 {$t2-$t3},[r12]! + + veor $a2,$a2,$t0 + vld1.32 {$a0-$b0},[@t[3]]! @ load for next iteration + veor $t0#hi,$t0#hi,$t0#hi + vldr $t0#lo,[sp,#4*(16+4)] @ four + veor $b2,$b2,$t1 + vld1.32 {$c0-$d0},[@t[3]] + veor $c2,$c2,$t2 + vst1.8 {$a1-$b1},[r14]! + veor $d2,$d2,$t3 + vst1.8 {$c1-$d1},[r14]! + + vadd.i32 $d0#lo,$d0#lo,$t0#lo @ next counter value + vldr $t0#lo,[sp,#4*(16+0)] @ one + + ldmia sp,{@t[0]-@t[3]} @ load key material + add @x[0],@x[0],@t[0] @ accumulate key material + ldr @t[0],[r12],#16 @ load input + vst1.8 {$a2-$b2},[r14]! + add @x[1],@x[1],@t[1] + ldr @t[1],[r12,#-12] + vst1.8 {$c2-$d2},[r14]! + add @x[2],@x[2],@t[2] + ldr @t[2],[r12,#-8] + add @x[3],@x[3],@t[3] + ldr @t[3],[r12,#-4] +# ifdef __ARMEB__ + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] +# endif + eor @x[0],@x[0],@t[0] @ xor with input + add @t[0],sp,#4*(4) + eor @x[1],@x[1],@t[1] + str @x[0],[r14],#16 @ store output + eor @x[2],@x[2],@t[2] + str @x[1],[r14,#-12] + eor @x[3],@x[3],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[2],[r14,#-8] + str @x[3],[r14,#-4] + + add @x[4],@x[4],@t[0] @ accumulate key material + ldr @t[0],[r12],#16 @ load input + add @x[5],@x[5],@t[1] + ldr @t[1],[r12,#-12] + add @x[6],@x[6],@t[2] + ldr @t[2],[r12,#-8] + add @x[7],@x[7],@t[3] + ldr @t[3],[r12,#-4] +# ifdef __ARMEB__ + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif + eor @x[4],@x[4],@t[0] + add @t[0],sp,#4*(8) + eor @x[5],@x[5],@t[1] + str @x[4],[r14],#16 @ store output + eor @x[6],@x[6],@t[2] + str @x[5],[r14,#-12] + eor @x[7],@x[7],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[6],[r14,#-8] + add @x[0],sp,#4*(16+8) + str @x[7],[r14,#-4] + + ldmia @x[0],{@x[0]-@x[7]} @ load second half + + add @x[0],@x[0],@t[0] @ accumulate key material + ldr @t[0],[r12],#16 @ load input + add @x[1],@x[1],@t[1] + ldr @t[1],[r12,#-12] +# ifdef __thumb2__ + it hi +# endif + strhi @t[2],[sp,#4*(16+10)] @ copy "@x[10]" while at it + add @x[2],@x[2],@t[2] + ldr @t[2],[r12,#-8] +# ifdef __thumb2__ + it hi +# endif + strhi @t[3],[sp,#4*(16+11)] @ copy "@x[11]" while at it + add @x[3],@x[3],@t[3] + ldr @t[3],[r12,#-4] +# ifdef __ARMEB__ + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] +# endif + eor @x[0],@x[0],@t[0] + add @t[0],sp,#4*(12) + eor @x[1],@x[1],@t[1] + str @x[0],[r14],#16 @ store output + eor @x[2],@x[2],@t[2] + str @x[1],[r14,#-12] + eor @x[3],@x[3],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + str @x[2],[r14,#-8] + str @x[3],[r14,#-4] + + add @x[4],@x[4],@t[0] @ accumulate key material + add @t[0],@t[0],#4 @ next counter value + add @x[5],@x[5],@t[1] + str @t[0],[sp,#4*(12)] @ save next counter value + ldr @t[0],[r12],#16 @ load input + add @x[6],@x[6],@t[2] + add @x[4],@x[4],#3 @ counter+3 + ldr @t[1],[r12,#-12] + add @x[7],@x[7],@t[3] + ldr @t[2],[r12,#-8] + ldr @t[3],[r12,#-4] +# ifdef __ARMEB__ + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif + eor @x[4],@x[4],@t[0] +# ifdef __thumb2__ + it hi +# endif + ldrhi @t[0],[sp,#4*(32+2)] @ re-load len + eor @x[5],@x[5],@t[1] + eor @x[6],@x[6],@t[2] + str @x[4],[r14],#16 @ store output + eor @x[7],@x[7],@t[3] + str @x[5],[r14,#-12] + sub @t[3],@t[0],#64*4 @ len-=64*4 + str @x[6],[r14,#-8] + str @x[7],[r14,#-4] + bhi .Loop_neon_outer + + b .Ldone_neon + +.align 4 +.Lbreak_neon: + @ harmonize NEON and integer-only stack frames: load data + @ from NEON frame, but save to integer-only one; distance + @ between the two is 4*(32+4+16-32)=4*(20). + + str @t[3], [sp,#4*(20+32+2)] @ save len + add @t[3],sp,#4*(32+4) + str r12, [sp,#4*(20+32+1)] @ save inp + str r14, [sp,#4*(20+32+0)] @ save out + + ldr @x[12],[sp,#4*(16+10)] + ldr @x[14],[sp,#4*(16+11)] + vldmia @t[3],{d8-d15} @ fulfill ABI requirement + str @x[12],[sp,#4*(20+16+10)] @ copy "@x[10]" + str @x[14],[sp,#4*(20+16+11)] @ copy "@x[11]" + + ldr @t[3], [sp,#4*(15)] + ldr @x[12],[sp,#4*(12)] @ modulo-scheduled load + ldr @t[2], [sp,#4*(13)] + ldr @x[14],[sp,#4*(14)] + str @t[3], [sp,#4*(20+16+15)] + add @t[3],sp,#4*(20) + vst1.32 {$a0-$b0},[@t[3]]! @ copy key + add sp,sp,#4*(20) @ switch frame + vst1.32 {$c0-$d0},[@t[3]] + mov @t[3],#10 + b .Loop @ go integer-only + +.align 4 +.Ltail_neon: + cmp @t[3],#64*3 + bhs .L192_or_more_neon + cmp @t[3],#64*2 + bhs .L128_or_more_neon + cmp @t[3],#64*1 + bhs .L64_or_more_neon + + add @t[0],sp,#4*(8) + vst1.8 {$a0-$b0},[sp] + add @t[2],sp,#4*(0) + vst1.8 {$c0-$d0},[@t[0]] + b .Loop_tail_neon + +.align 4 +.L64_or_more_neon: + vld1.8 {$t0-$t1},[r12]! + vld1.8 {$t2-$t3},[r12]! + veor $a0,$a0,$t0 + veor $b0,$b0,$t1 + veor $c0,$c0,$t2 + veor $d0,$d0,$t3 + vst1.8 {$a0-$b0},[r14]! + vst1.8 {$c0-$d0},[r14]! + + beq .Ldone_neon + + add @t[0],sp,#4*(8) + vst1.8 {$a1-$b1},[sp] + add @t[2],sp,#4*(0) + vst1.8 {$c1-$d1},[@t[0]] + sub @t[3],@t[3],#64*1 @ len-=64*1 + b .Loop_tail_neon + +.align 4 +.L128_or_more_neon: + vld1.8 {$t0-$t1},[r12]! + vld1.8 {$t2-$t3},[r12]! + veor $a0,$a0,$t0 + veor $b0,$b0,$t1 + vld1.8 {$t0-$t1},[r12]! + veor $c0,$c0,$t2 + veor $d0,$d0,$t3 + vld1.8 {$t2-$t3},[r12]! + + veor $a1,$a1,$t0 + veor $b1,$b1,$t1 + vst1.8 {$a0-$b0},[r14]! + veor $c1,$c1,$t2 + vst1.8 {$c0-$d0},[r14]! + veor $d1,$d1,$t3 + vst1.8 {$a1-$b1},[r14]! + vst1.8 {$c1-$d1},[r14]! + + beq .Ldone_neon + + add @t[0],sp,#4*(8) + vst1.8 {$a2-$b2},[sp] + add @t[2],sp,#4*(0) + vst1.8 {$c2-$d2},[@t[0]] + sub @t[3],@t[3],#64*2 @ len-=64*2 + b .Loop_tail_neon + +.align 4 +.L192_or_more_neon: + vld1.8 {$t0-$t1},[r12]! + vld1.8 {$t2-$t3},[r12]! + veor $a0,$a0,$t0 + veor $b0,$b0,$t1 + vld1.8 {$t0-$t1},[r12]! + veor $c0,$c0,$t2 + veor $d0,$d0,$t3 + vld1.8 {$t2-$t3},[r12]! + + veor $a1,$a1,$t0 + veor $b1,$b1,$t1 + vld1.8 {$t0-$t1},[r12]! + veor $c1,$c1,$t2 + vst1.8 {$a0-$b0},[r14]! + veor $d1,$d1,$t3 + vld1.8 {$t2-$t3},[r12]! + + veor $a2,$a2,$t0 + vst1.8 {$c0-$d0},[r14]! + veor $b2,$b2,$t1 + vst1.8 {$a1-$b1},[r14]! + veor $c2,$c2,$t2 + vst1.8 {$c1-$d1},[r14]! + veor $d2,$d2,$t3 + vst1.8 {$a2-$b2},[r14]! + vst1.8 {$c2-$d2},[r14]! + + beq .Ldone_neon + + ldmia sp,{@t[0]-@t[3]} @ load key material + add @x[0],@x[0],@t[0] @ accumulate key material + add @t[0],sp,#4*(4) + add @x[1],@x[1],@t[1] + add @x[2],@x[2],@t[2] + add @x[3],@x[3],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + + add @x[4],@x[4],@t[0] @ accumulate key material + add @t[0],sp,#4*(8) + add @x[5],@x[5],@t[1] + add @x[6],@x[6],@t[2] + add @x[7],@x[7],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material +# ifdef __ARMEB__ + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif + stmia sp,{@x[0]-@x[7]} + add @x[0],sp,#4*(16+8) + + ldmia @x[0],{@x[0]-@x[7]} @ load second half + + add @x[0],@x[0],@t[0] @ accumulate key material + add @t[0],sp,#4*(12) + add @x[1],@x[1],@t[1] + add @x[2],@x[2],@t[2] + add @x[3],@x[3],@t[3] + ldmia @t[0],{@t[0]-@t[3]} @ load key material + + add @x[4],@x[4],@t[0] @ accumulate key material + add @t[0],sp,#4*(8) + add @x[5],@x[5],@t[1] + add @x[4],@x[4],#3 @ counter+3 + add @x[6],@x[6],@t[2] + add @x[7],@x[7],@t[3] + ldr @t[3],[sp,#4*(32+2)] @ re-load len +# ifdef __ARMEB__ + rev @x[0],@x[0] + rev @x[1],@x[1] + rev @x[2],@x[2] + rev @x[3],@x[3] + rev @x[4],@x[4] + rev @x[5],@x[5] + rev @x[6],@x[6] + rev @x[7],@x[7] +# endif + stmia @t[0],{@x[0]-@x[7]} + add @t[2],sp,#4*(0) + sub @t[3],@t[0],#64*3 @ len-=64*3 + +.Loop_tail_neon: + ldrb @t[0],[@t[2]],#1 @ read buffer on stack + ldrb @t[1],[r12],#1 @ read input + subs @t[3],@t[3],#1 + eor @t[0],@t[0],@t[1] + strb @t[0],[r14],#1 @ store ouput + bne .Loop_tail_neon + +.Ldone_neon: + add sp,sp,#4*(32+4) + vldmia sp,{d8-d15} + add sp,sp,#4*(16+3) + ldmia sp!,{r4-r11,pc} +.size ChaCha20_neon,.-ChaCha20_neon +.comm OPENSSL_armcap_P,4,4 +#endif +___ +}}} + +foreach (split("\n",$code)) { + s/\`([^\`]*)\`/eval $1/geo; + + s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo; + + print $_,"\n"; +} +close STDOUT; diff --git a/crypto/chacha/asm/chacha-armv8.pl b/crypto/chacha/asm/chacha-armv8.pl new file mode 100755 index 0000000000..6ddb31fb99 --- /dev/null +++ b/crypto/chacha/asm/chacha-armv8.pl @@ -0,0 +1,1126 @@ +#!/usr/bin/env perl +# +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# June 2015 +# +# ChaCha20 for ARMv8. +# +# Performance in cycles per byte out of large buffer. +# +# IALU/gcc-4.9 3xNEON+1xIALU 6xNEON+2xIALU +# +# Apple A7 |