diff options
author | Adam Langley <agl@google.com> | 2016-09-23 22:47:24 +0300 |
---|---|---|
committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | 2016-09-27 21:43:20 +0300 |
commit | 4467e59bc85dd156a88d360ff2e401fa68552541 (patch) | |
tree | dc5b94f15edf0a7fede8fc903edf3056fd473b88 /crypto | |
parent | cb18ac2bc3526f825eb4d5c0442ff6b9a62fb110 (diff) |
Add PPC64LE assembly for AES-GCM.
This change adds AES and GHASH assembly from upstream, with the aim of
speeding up AES-GCM.
The PPC64LE assembly matches the interface of the ARMv8 assembly so I've
changed the prefix of both sets of asm functions to be the same
("aes_hw_").
Otherwise, the new assmebly files and Perlasm match exactly those from
upstream's c536b6be1a (from their master branch).
Before:
Did 1879000 AES-128-GCM (16 bytes) seal operations in 1000428us (1878196.1 ops/sec): 30.1 MB/s
Did 61000 AES-128-GCM (1350 bytes) seal operations in 1006660us (60596.4 ops/sec): 81.8 MB/s
Did 11000 AES-128-GCM (8192 bytes) seal operations in 1072649us (10255.0 ops/sec): 84.0 MB/s
Did 1665000 AES-256-GCM (16 bytes) seal operations in 1000591us (1664016.6 ops/sec): 26.6 MB/s
Did 52000 AES-256-GCM (1350 bytes) seal operations in 1006971us (51640.0 ops/sec): 69.7 MB/s
Did 8840 AES-256-GCM (8192 bytes) seal operations in 1013294us (8724.0 ops/sec): 71.5 MB/s
After:
Did 4994000 AES-128-GCM (16 bytes) seal operations in 1000017us (4993915.1 ops/sec): 79.9 MB/s
Did 1389000 AES-128-GCM (1350 bytes) seal operations in 1000073us (1388898.6 ops/sec): 1875.0 MB/s
Did 319000 AES-128-GCM (8192 bytes) seal operations in 1000101us (318967.8 ops/sec): 2613.0 MB/s
Did 4668000 AES-256-GCM (16 bytes) seal operations in 1000149us (4667304.6 ops/sec): 74.7 MB/s
Did 1202000 AES-256-GCM (1350 bytes) seal operations in 1000646us (1201224.0 ops/sec): 1621.7 MB/s
Did 269000 AES-256-GCM (8192 bytes) seal operations in 1002804us (268247.8 ops/sec): 2197.5 MB/s
Change-Id: Id848562bd4e1aa79a4683012501dfa5e6c08cfcc
Reviewed-on: https://boringssl-review.googlesource.com/11262
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/CMakeLists.txt | 4 | ||||
-rw-r--r-- | crypto/aes/CMakeLists.txt | 9 | ||||
-rw-r--r-- | crypto/aes/asm/aesp8-ppc.pl | 3805 | ||||
-rw-r--r-- | crypto/aes/asm/aesv8-armx.pl | 2 | ||||
-rw-r--r-- | crypto/cipher/e_aes.c | 66 | ||||
-rw-r--r-- | crypto/cpu-ppc64le.c | 40 | ||||
-rw-r--r-- | crypto/crypto.c | 8 | ||||
-rw-r--r-- | crypto/internal.h | 4 | ||||
-rw-r--r-- | crypto/modes/CMakeLists.txt | 9 | ||||
-rw-r--r-- | crypto/modes/asm/ghashp8-ppc.pl | 670 | ||||
-rw-r--r-- | crypto/modes/gcm.c | 22 | ||||
-rw-r--r-- | crypto/perlasm/ppc-xlate.pl | 299 |
12 files changed, 4901 insertions, 37 deletions
diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt index 5182a4a8..4cc5ae26 100644 --- a/crypto/CMakeLists.txt +++ b/crypto/CMakeLists.txt @@ -17,6 +17,8 @@ elseif(UNIX) elseif (${ARCH} STREQUAL "x86") set(PERLASM_FLAGS "-fPIC -DOPENSSL_IA32_SSE2") set(PERLASM_STYLE elf) + elseif (${ARCH} STREQUAL "ppc64le") + set(PERLASM_STYLE ppc64le) else() set(PERLASM_STYLE elf) endif() @@ -45,6 +47,7 @@ function(perlasm dest src) DEPENDS ${src} ${PROJECT_SOURCE_DIR}/crypto/perlasm/arm-xlate.pl + ${PROJECT_SOURCE_DIR}/crypto/perlasm/ppc-xlate.pl ${PROJECT_SOURCE_DIR}/crypto/perlasm/x86_64-xlate.pl ${PROJECT_SOURCE_DIR}/crypto/perlasm/x86asm.pl ${PROJECT_SOURCE_DIR}/crypto/perlasm/x86gas.pl @@ -116,6 +119,7 @@ add_library( cpu-arm.c cpu-arm-linux.c cpu-intel.c + cpu-ppc64le.c crypto.c ex_data.c mem.c diff --git a/crypto/aes/CMakeLists.txt b/crypto/aes/CMakeLists.txt index 0566e398..509fed97 100644 --- a/crypto/aes/CMakeLists.txt +++ b/crypto/aes/CMakeLists.txt @@ -39,6 +39,14 @@ if (${ARCH} STREQUAL "aarch64") ) endif() +if (${ARCH} STREQUAL "ppc64le") + set( + AES_ARCH_SOURCES + + aesp8-ppc.${ASM_EXT} + ) +endif() + add_library( aes @@ -60,6 +68,7 @@ perlasm(aesni-x86.${ASM_EXT} asm/aesni-x86.pl) perlasm(aes-armv4.${ASM_EXT} asm/aes-armv4.pl) perlasm(bsaes-armv7.${ASM_EXT} asm/bsaes-armv7.pl) perlasm(aesv8-armx.${ASM_EXT} asm/aesv8-armx.pl) +perlasm(aesp8-ppc.${ASM_EXT} asm/aesp8-ppc.pl) add_executable( aes_test diff --git a/crypto/aes/asm/aesp8-ppc.pl b/crypto/aes/asm/aesp8-ppc.pl new file mode 100644 index 00000000..4bdcff74 --- /dev/null +++ b/crypto/aes/asm/aesp8-ppc.pl @@ -0,0 +1,3805 @@ +#! /usr/bin/env perl +# Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + +# +# ==================================================================== +# 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/. +# ==================================================================== +# +# This module implements support for AES instructions as per PowerISA +# specification version 2.07, first implemented by POWER8 processor. +# The module is endian-agnostic in sense that it supports both big- +# and little-endian cases. Data alignment in parallelizable modes is +# handled with VSX loads and stores, which implies MSR.VSX flag being +# set. It should also be noted that ISA specification doesn't prohibit +# alignment exceptions for these instructions on page boundaries. +# Initially alignment was handled in pure AltiVec/VMX way [when data +# is aligned programmatically, which in turn guarantees exception- +# free execution], but it turned to hamper performance when vcipher +# instructions are interleaved. It's reckoned that eventual +# misalignment penalties at page boundaries are in average lower +# than additional overhead in pure AltiVec approach. +# +# May 2016 +# +# Add XTS subroutine, 9x on little- and 12x improvement on big-endian +# systems were measured. +# +###################################################################### +# Current large-block performance in cycles per byte processed with +# 128-bit key (less is better). +# +# CBC en-/decrypt CTR XTS +# POWER8[le] 3.96/0.72 0.74 1.1 +# POWER8[be] 3.75/0.65 0.66 1.0 + +$flavour = shift; + +if ($flavour =~ /64/) { + $SIZE_T =8; + $LRSAVE =2*$SIZE_T; + $STU ="stdu"; + $POP ="ld"; + $PUSH ="std"; + $UCMP ="cmpld"; + $SHL ="sldi"; +} elsif ($flavour =~ /32/) { + $SIZE_T =4; + $LRSAVE =$SIZE_T; + $STU ="stwu"; + $POP ="lwz"; + $PUSH ="stw"; + $UCMP ="cmplw"; + $SHL ="slwi"; +} else { die "nonsense $flavour"; } + +$LITTLE_ENDIAN = ($flavour=~/le$/) ? $SIZE_T : 0; + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or +die "can't locate ppc-xlate.pl"; + +open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!"; + +$FRAME=8*$SIZE_T; +$prefix="aes_hw"; + +$sp="r1"; +$vrsave="r12"; + +######################################################################### +{{{ # Key setup procedures # +my ($inp,$bits,$out,$ptr,$cnt,$rounds)=map("r$_",(3..8)); +my ($zero,$in0,$in1,$key,$rcon,$mask,$tmp)=map("v$_",(0..6)); +my ($stage,$outperm,$outmask,$outhead,$outtail)=map("v$_",(7..11)); + +$code.=<<___; +.machine "any" + +.text + +.align 7 +rcon: +.long 0x01000000, 0x01000000, 0x01000000, 0x01000000 ?rev +.long 0x1b000000, 0x1b000000, 0x1b000000, 0x1b000000 ?rev +.long 0x0d0e0f0c, 0x0d0e0f0c, 0x0d0e0f0c, 0x0d0e0f0c ?rev +.long 0,0,0,0 ?asis +Lconsts: + mflr r0 + bcl 20,31,\$+4 + mflr $ptr #vvvvv "distance between . and rcon + addi $ptr,$ptr,-0x48 + mtlr r0 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 +.asciz "AES for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>" + +.globl .${prefix}_set_encrypt_key +.align 5 +.${prefix}_set_encrypt_key: +Lset_encrypt_key: + mflr r11 + $PUSH r11,$LRSAVE($sp) + + li $ptr,-1 + ${UCMP}i $inp,0 + beq- Lenc_key_abort # if ($inp==0) return -1; + ${UCMP}i $out,0 + beq- Lenc_key_abort # if ($out==0) return -1; + li $ptr,-2 + cmpwi $bits,128 + blt- Lenc_key_abort + cmpwi $bits,256 + bgt- Lenc_key_abort + andi. r0,$bits,0x3f + bne- Lenc_key_abort + + lis r0,0xfff0 + mfspr $vrsave,256 + mtspr 256,r0 + + bl Lconsts + mtlr r11 + + neg r9,$inp + lvx $in0,0,$inp + addi $inp,$inp,15 # 15 is not typo + lvsr $key,0,r9 # borrow $key + li r8,0x20 + cmpwi $bits,192 + lvx $in1,0,$inp + le?vspltisb $mask,0x0f # borrow $mask + lvx $rcon,0,$ptr + le?vxor $key,$key,$mask # adjust for byte swap + lvx $mask,r8,$ptr + addi $ptr,$ptr,0x10 + vperm $in0,$in0,$in1,$key # align [and byte swap in LE] + li $cnt,8 + vxor $zero,$zero,$zero + mtctr $cnt + + ?lvsr $outperm,0,$out + vspltisb $outmask,-1 + lvx $outhead,0,$out + ?vperm $outmask,$zero,$outmask,$outperm + + blt Loop128 + addi $inp,$inp,8 + beq L192 + addi $inp,$inp,8 + b L256 + +.align 4 +Loop128: + vperm $key,$in0,$in0,$mask # rotate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vcipherlast $key,$key,$rcon + stvx $stage,0,$out + addi $out,$out,16 + + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vadduwm $rcon,$rcon,$rcon + vxor $in0,$in0,$key + bdnz Loop128 + + lvx $rcon,0,$ptr # last two round keys + + vperm $key,$in0,$in0,$mask # rotate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vcipherlast $key,$key,$rcon + stvx $stage,0,$out + addi $out,$out,16 + + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vadduwm $rcon,$rcon,$rcon + vxor $in0,$in0,$key + + vperm $key,$in0,$in0,$mask # rotate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vcipherlast $key,$key,$rcon + stvx $stage,0,$out + addi $out,$out,16 + + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vxor $in0,$in0,$key + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + stvx $stage,0,$out + + addi $inp,$out,15 # 15 is not typo + addi $out,$out,0x50 + + li $rounds,10 + b Ldone + +.align 4 +L192: + lvx $tmp,0,$inp + li $cnt,4 + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + stvx $stage,0,$out + addi $out,$out,16 + vperm $in1,$in1,$tmp,$key # align [and byte swap in LE] + vspltisb $key,8 # borrow $key + mtctr $cnt + vsububm $mask,$mask,$key # adjust the mask + +Loop192: + vperm $key,$in1,$in1,$mask # roate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vcipherlast $key,$key,$rcon + + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + + vsldoi $stage,$zero,$in1,8 + vspltw $tmp,$in0,3 + vxor $tmp,$tmp,$in1 + vsldoi $in1,$zero,$in1,12 # >>32 + vadduwm $rcon,$rcon,$rcon + vxor $in1,$in1,$tmp + vxor $in0,$in0,$key + vxor $in1,$in1,$key + vsldoi $stage,$stage,$in0,8 + + vperm $key,$in1,$in1,$mask # rotate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vperm $outtail,$stage,$stage,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vcipherlast $key,$key,$rcon + stvx $stage,0,$out + addi $out,$out,16 + + vsldoi $stage,$in0,$in1,8 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vperm $outtail,$stage,$stage,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + stvx $stage,0,$out + addi $out,$out,16 + + vspltw $tmp,$in0,3 + vxor $tmp,$tmp,$in1 + vsldoi $in1,$zero,$in1,12 # >>32 + vadduwm $rcon,$rcon,$rcon + vxor $in1,$in1,$tmp + vxor $in0,$in0,$key + vxor $in1,$in1,$key + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + stvx $stage,0,$out + addi $inp,$out,15 # 15 is not typo + addi $out,$out,16 + bdnz Loop192 + + li $rounds,12 + addi $out,$out,0x20 + b Ldone + +.align 4 +L256: + lvx $tmp,0,$inp + li $cnt,7 + li $rounds,14 + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + stvx $stage,0,$out + addi $out,$out,16 + vperm $in1,$in1,$tmp,$key # align [and byte swap in LE] + mtctr $cnt + +Loop256: + vperm $key,$in1,$in1,$mask # rotate-n-splat + vsldoi $tmp,$zero,$in0,12 # >>32 + vperm $outtail,$in1,$in1,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + vcipherlast $key,$key,$rcon + stvx $stage,0,$out + addi $out,$out,16 + + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in0,$in0,$tmp + vadduwm $rcon,$rcon,$rcon + vxor $in0,$in0,$key + vperm $outtail,$in0,$in0,$outperm # rotate + vsel $stage,$outhead,$outtail,$outmask + vmr $outhead,$outtail + stvx $stage,0,$out + addi $inp,$out,15 # 15 is not typo + addi $out,$out,16 + bdz Ldone + + vspltw $key,$in0,3 # just splat + vsldoi $tmp,$zero,$in1,12 # >>32 + vsbox $key,$key + + vxor $in1,$in1,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in1,$in1,$tmp + vsldoi $tmp,$zero,$tmp,12 # >>32 + vxor $in1,$in1,$tmp + + vxor $in1,$in1,$key + b Loop256 + +.align 4 +Ldone: + lvx $in1,0,$inp # redundant in aligned case + vsel $in1,$outhead,$in1,$outmask + stvx $in1,0,$inp + li $ptr,0 + mtspr 256,$vrsave + stw $rounds,0($out) + +Lenc_key_abort: + mr r3,$ptr + blr + .long 0 + .byte 0,12,0x14,1,0,0,3,0 + .long 0 +.size .${prefix}_set_encrypt_key,.-.${prefix}_set_encrypt_key + +.globl .${prefix}_set_decrypt_key +.align 5 +.${prefix}_set_decrypt_key: + $STU $sp,-$FRAME($sp) + mflr r10 + $PUSH r10,$FRAME+$LRSAVE($sp) + bl Lset_encrypt_key + mtlr r10 + + cmpwi r3,0 + bne- Ldec_key_abort + + slwi $cnt,$rounds,4 + subi $inp,$out,240 # first round key + srwi $rounds,$rounds,1 + add $out,$inp,$cnt # last round key + mtctr $rounds + +Ldeckey: + lwz r0, 0($inp) + lwz r6, 4($inp) + lwz r7, 8($inp) + lwz r8, 12($inp) + addi $inp,$inp,16 + lwz r9, 0($out) + lwz r10,4($out) + lwz r11,8($out) + lwz r12,12($out) + stw r0, 0($out) + stw r6, 4($out) + stw r7, 8($out) + stw r8, 12($out) + subi $out,$out,16 + stw r9, -16($inp) + stw r10,-12($inp) + stw r11,-8($inp) + stw r12,-4($inp) + bdnz Ldeckey + + xor r3,r3,r3 # return value +Ldec_key_abort: + addi $sp,$sp,$FRAME + blr + .long 0 + .byte 0,12,4,1,0x80,0,3,0 + .long 0 +.size .${prefix}_set_decrypt_key,.-.${prefix}_set_decrypt_key +___ +}}} +######################################################################### +{{{ # Single block en- and decrypt procedures # +sub gen_block () { +my $dir = shift; +my $n = $dir eq "de" ? "n" : ""; +my ($inp,$out,$key,$rounds,$idx)=map("r$_",(3..7)); + +$code.=<<___; +.globl .${prefix}_${dir}crypt +.align 5 +.${prefix}_${dir}crypt: + lwz $rounds,240($key) + lis r0,0xfc00 + mfspr $vrsave,256 + li $idx,15 # 15 is not typo + mtspr 256,r0 + + lvx v0,0,$inp + neg r11,$out + lvx v1,$idx,$inp + lvsl v2,0,$inp # inpperm + le?vspltisb v4,0x0f + ?lvsl v3,0,r11 # outperm + le?vxor v2,v2,v4 + li $idx,16 + vperm v0,v0,v1,v2 # align [and byte swap in LE] + lvx v1,0,$key + ?lvsl v5,0,$key # keyperm + srwi $rounds,$rounds,1 + lvx v2,$idx,$key + addi $idx,$idx,16 + subi $rounds,$rounds,1 + ?vperm v1,v1,v2,v5 # align round key + + vxor v0,v0,v1 + lvx v1,$idx,$key + addi $idx,$idx,16 + mtctr $rounds + +Loop_${dir}c: + ?vperm v2,v2,v1,v5 + v${n}cipher v0,v0,v2 + lvx v2,$idx,$key + addi $idx,$idx,16 + ?vperm v1,v1,v2,v5 + v${n}cipher v0,v0,v1 + lvx v1,$idx,$key + addi $idx,$idx,16 + bdnz Loop_${dir}c + + ?vperm v2,v2,v1,v5 + v${n}cipher v0,v0,v2 + lvx v2,$idx,$key + ?vperm v1,v1,v2,v5 + v${n}cipherlast v0,v0,v1 + + vspltisb v2,-1 + vxor v1,v1,v1 + li $idx,15 # 15 is not typo + ?vperm v2,v1,v2,v3 # outmask + le?vxor v3,v3,v4 + lvx v1,0,$out # outhead + vperm v0,v0,v0,v3 # rotate [and byte swap in LE] + vsel v1,v1,v0,v2 + lvx v4,$idx,$out + stvx v1,0,$out + vsel v0,v0,v4,v2 + stvx v0,$idx,$out + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,3,0 + .long 0 +.size .${prefix}_${dir}crypt,.-.${prefix}_${dir}crypt +___ +} +&gen_block("en"); +&gen_block("de"); +}}} +######################################################################### +{{{ # CBC en- and decrypt procedures # +my ($inp,$out,$len,$key,$ivp,$enc,$rounds,$idx)=map("r$_",(3..10)); +my ($rndkey0,$rndkey1,$inout,$tmp)= map("v$_",(0..3)); +my ($ivec,$inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm)= + map("v$_",(4..10)); +$code.=<<___; +.globl .${prefix}_cbc_encrypt +.align 5 +.${prefix}_cbc_encrypt: + ${UCMP}i $len,16 + bltlr- + + cmpwi $enc,0 # test direction + lis r0,0xffe0 + mfspr $vrsave,256 + mtspr 256,r0 + + li $idx,15 + vxor $rndkey0,$rndkey0,$rndkey0 + le?vspltisb $tmp,0x0f + + lvx $ivec,0,$ivp # load [unaligned] iv + lvsl $inpperm,0,$ivp + lvx $inptail,$idx,$ivp + le?vxor $inpperm,$inpperm,$tmp + vperm $ivec,$ivec,$inptail,$inpperm + + neg r11,$inp + ?lvsl $keyperm,0,$key # prepare for unaligned key + lwz $rounds,240($key) + + lvsr $inpperm,0,r11 # prepare for unaligned load + lvx $inptail,0,$inp + addi $inp,$inp,15 # 15 is not typo + le?vxor $inpperm,$inpperm,$tmp + + ?lvsr $outperm,0,$out # prepare for unaligned store + vspltisb $outmask,-1 + lvx $outhead,0,$out + ?vperm $outmask,$rndkey0,$outmask,$outperm + le?vxor $outperm,$outperm,$tmp + + srwi $rounds,$rounds,1 + li $idx,16 + subi $rounds,$rounds,1 + beq Lcbc_dec + +Lcbc_enc: + vmr $inout,$inptail + lvx $inptail,0,$inp + addi $inp,$inp,16 + mtctr $rounds + subi $len,$len,16 # len-=16 + + lvx $rndkey0,0,$key + vperm $inout,$inout,$inptail,$inpperm + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + vxor $inout,$inout,$ivec + +Loop_cbc_enc: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + bdnz Loop_cbc_enc + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + li $idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipherlast $ivec,$inout,$rndkey0 + ${UCMP}i $len,16 + + vperm $tmp,$ivec,$ivec,$outperm + vsel $inout,$outhead,$tmp,$outmask + vmr $outhead,$tmp + stvx $inout,0,$out + addi $out,$out,16 + bge Lcbc_enc + + b Lcbc_done + +.align 4 +Lcbc_dec: + ${UCMP}i $len,128 + bge _aesp8_cbc_decrypt8x + vmr $tmp,$inptail + lvx $inptail,0,$inp + addi $inp,$inp,16 + mtctr $rounds + subi $len,$len,16 # len-=16 + + lvx $rndkey0,0,$key + vperm $tmp,$tmp,$inptail,$inpperm + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$tmp,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + +Loop_cbc_dec: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vncipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + bdnz Loop_cbc_dec + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + li $idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vncipherlast $inout,$inout,$rndkey0 + ${UCMP}i $len,16 + + vxor $inout,$inout,$ivec + vmr $ivec,$tmp + vperm $tmp,$inout,$inout,$outperm + vsel $inout,$outhead,$tmp,$outmask + vmr $outhead,$tmp + stvx $inout,0,$out + addi $out,$out,16 + bge Lcbc_dec + +Lcbc_done: + addi $out,$out,-1 + lvx $inout,0,$out # redundant in aligned case + vsel $inout,$outhead,$inout,$outmask + stvx $inout,0,$out + + neg $enc,$ivp # write [unaligned] iv + li $idx,15 # 15 is not typo + vxor $rndkey0,$rndkey0,$rndkey0 + vspltisb $outmask,-1 + le?vspltisb $tmp,0x0f + ?lvsl $outperm,0,$enc + ?vperm $outmask,$rndkey0,$outmask,$outperm + le?vxor $outperm,$outperm,$tmp + lvx $outhead,0,$ivp + vperm $ivec,$ivec,$ivec,$outperm + vsel $inout,$outhead,$ivec,$outmask + lvx $inptail,$idx,$ivp + stvx $inout,0,$ivp + vsel $inout,$ivec,$inptail,$outmask + stvx $inout,$idx,$ivp + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,6,0 + .long 0 +___ +######################################################################### +{{ # Optimized CBC decrypt procedure # +my $key_="r11"; +my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,8,26..31)); + $x00=0 if ($flavour =~ /osx/); +my ($in0, $in1, $in2, $in3, $in4, $in5, $in6, $in7 )=map("v$_",(0..3,10..13)); +my ($out0,$out1,$out2,$out3,$out4,$out5,$out6,$out7)=map("v$_",(14..21)); +my $rndkey0="v23"; # v24-v25 rotating buffer for first found keys + # v26-v31 last 6 round keys +my ($tmp,$keyperm)=($in3,$in4); # aliases with "caller", redundant assignment + +$code.=<<___; +.align 5 +_aesp8_cbc_decrypt8x: + $STU $sp,-`($FRAME+21*16+6*$SIZE_T)`($sp) + li r10,`$FRAME+8*16+15` + li r11,`$FRAME+8*16+31` + stvx v20,r10,$sp # ABI says so + addi r10,r10,32 + stvx v21,r11,$sp + addi r11,r11,32 + stvx v22,r10,$sp + addi r10,r10,32 + stvx v23,r11,$sp + addi r11,r11,32 + stvx v24,r10,$sp + addi r10,r10,32 + stvx v25,r11,$sp + addi r11,r11,32 + stvx v26,r10,$sp + addi r10,r10,32 + stvx v27,r11,$sp + addi r11,r11,32 + stvx v28,r10,$sp + addi r10,r10,32 + stvx v29,r11,$sp + addi r11,r11,32 + stvx v30,r10,$sp + stvx v31,r11,$sp + li r0,-1 + stw $vrsave,`$FRAME+21*16-4`($sp) # save vrsave + li $x10,0x10 + $PUSH r26,`$FRAME+21*16+0*$SIZE_T`($sp) + li $x20,0x20 + $PUSH r27,`$FRAME+21*16+1*$SIZE_T`($sp) + li $x30,0x30 + $PUSH r28,`$FRAME+21*16+2*$SIZE_T`($sp) + li $x40,0x40 + $PUSH r29,`$FRAME+21*16+3*$SIZE_T`($sp) + li $x50,0x50 + $PUSH r30,`$FRAME+21*16+4*$SIZE_T`($sp) + li $x60,0x60 + $PUSH r31,`$FRAME+21*16+5*$SIZE_T`($sp) + li $x70,0x70 + mtspr 256,r0 + + subi $rounds,$rounds,3 # -4 in total + subi $len,$len,128 # bias + + lvx $rndkey0,$x00,$key # load key schedule + lvx v30,$x10,$key + addi $key,$key,0x20 + lvx v31,$x00,$key + ?vperm $rndkey0,$rndkey0,v30,$keyperm + addi $key_,$sp,$FRAME+15 + mtctr $rounds + +Load_cbc_dec_key: + ?vperm v24,v30,v31,$keyperm + lvx v30,$x10,$key + addi $key,$key,0x20 + stvx v24,$x00,$key_ # off-load round[1] + ?vperm v25,v31,v30,$keyperm + lvx v31,$x00,$key + stvx v25,$x10,$key_ # off-load round[2] + addi $key_,$key_,0x20 + bdnz Load_cbc_dec_key + + lvx v26,$x10,$key + ?vperm v24,v30,v31,$keyperm + lvx v27,$x20,$key + stvx v24,$x00,$key_ # off-load round[3] + ?vperm v25,v31,v26,$keyperm + lvx v28,$x30,$key + stvx v25,$x10,$key_ # off-load round[4] + addi $key_,$sp,$FRAME+15 # rewind $key_ + ?vperm v26,v26,v27,$keyperm + lvx v29,$x40,$key + ?vperm v27,v27,v28,$keyperm + lvx v30,$x50,$key + ?vperm v28,v28,v29,$keyperm + lvx v31,$x60,$key + ?vperm v29,v29,v30,$keyperm + lvx $out0,$x70,$key # borrow $out0 + ?vperm v30,v30,v31,$keyperm + lvx v24,$x00,$key_ # pre-load round[1] + ?vperm v31,v31,$out0,$keyperm + lvx v25,$x10,$key_ # pre-load round[2] + + #lvx $inptail,0,$inp # "caller" already did this + #addi $inp,$inp,15 # 15 is not typo + subi $inp,$inp,15 # undo "caller" + + le?li $idx,8 + lvx_u $in0,$x00,$inp # load first 8 "words" + le?lvsl $inpperm,0,$idx + le?vspltisb $tmp,0x0f + lvx_u $in1,$x10,$inp + le?vxor $inpperm,$inpperm,$tmp # transform for lvx_u/stvx_u + lvx_u $in2,$x20,$inp + le?vperm $in0,$in0,$in0,$inpperm + lvx_u $in3,$x30,$inp + le?vperm $in1,$in1,$in1,$inpperm + lvx_u $in4,$x40,$inp + le?vperm $in2,$in2,$in2,$inpperm + vxor $out0,$in0,$rndkey0 + lvx_u $in5,$x50,$inp + le?vperm $in3,$in3,$in3,$inpperm + vxor $out1,$in1,$rndkey0 + lvx_u $in6,$x60,$inp + le?vperm $in4,$in4,$in4,$inpperm + vxor $out2,$in2,$rndkey0 + lvx_u $in7,$x70,$inp + addi $inp,$inp,0x80 + le?vperm $in5,$in5,$in5,$inpperm + vxor $out3,$in3,$rndkey0 + le?vperm $in6,$in6,$in6,$inpperm + vxor $out4,$in4,$rndkey0 + le?vperm $in7,$in7,$in7,$inpperm + vxor $out5,$in5,$rndkey0 + vxor $out6,$in6,$rndkey0 + vxor $out7,$in7,$rndkey0 + + mtctr $rounds + b Loop_cbc_dec8x +.align 5 +Loop_cbc_dec8x: + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + vncipher $out6,$out6,v24 + vncipher $out7,$out7,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + vncipher $out6,$out6,v25 + vncipher $out7,$out7,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_cbc_dec8x + + subic $len,$len,128 # $len-=128 + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + vncipher $out6,$out6,v24 + vncipher $out7,$out7,v24 + + subfe. r0,r0,r0 # borrow?-1:0 + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + vncipher $out6,$out6,v25 + vncipher $out7,$out7,v25 + + and r0,r0,$len + vncipher $out0,$out0,v26 + vncipher $out1,$out1,v26 + vncipher $out2,$out2,v26 + vncipher $out3,$out3,v26 + vncipher $out4,$out4,v26 + vncipher $out5,$out5,v26 + vncipher $out6,$out6,v26 + vncipher $out7,$out7,v26 + + add $inp,$inp,r0 # $inp is adjusted in such + # way that at exit from the + # loop inX-in7 are loaded + # with last "words" + vncipher $out0,$out0,v27 + vncipher $out1,$out1,v27 + vncipher $out2,$out2,v27 + vncipher $out3,$out3,v27 + vncipher $out4,$out4,v27 + vncipher $out5,$out5,v27 + vncipher $out6,$out6,v27 + vncipher $out7,$out7,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vncipher $out0,$out0,v28 + vncipher $out1,$out1,v28 + vncipher $out2,$out2,v28 + vncipher $out3,$out3,v28 + vncipher $out4,$out4,v28 + vncipher $out5,$out5,v28 + vncipher $out6,$out6,v28 + vncipher $out7,$out7,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + + vncipher $out0,$out0,v29 + vncipher $out1,$out1,v29 + vncipher $out2,$out2,v29 + vncipher $out3,$out3,v29 + vncipher $out4,$out4,v29 + vncipher $out5,$out5,v29 + vncipher $out6,$out6,v29 + vncipher $out7,$out7,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + + vncipher $out0,$out0,v30 + vxor $ivec,$ivec,v31 # xor with last round key + vncipher $out1,$out1,v30 + vxor $in0,$in0,v31 + vncipher $out2,$out2,v30 + vxor $in1,$in1,v31 + vncipher $out3,$out3,v30 + vxor $in2,$in2,v31 + vncipher $out4,$out4,v30 + vxor $in3,$in3,v31 + vncipher $out5,$out5,v30 + vxor $in4,$in4,v31 + vncipher $out6,$out6,v30 + vxor $in5,$in5,v31 + vncipher $out7,$out7,v30 + vxor $in6,$in6,v31 + + vncipherlast $out0,$out0,$ivec + vncipherlast $out1,$out1,$in0 + lvx_u $in0,$x00,$inp # load next input block + vncipherlast $out2,$out2,$in1 + lvx_u $in1,$x10,$inp + vncipherlast $out3,$out3,$in2 + le?vperm $in0,$in0,$in0,$inpperm + lvx_u $in2,$x20,$inp + vncipherlast $out4,$out4,$in3 + le?vperm $in1,$in1,$in1,$inpperm + lvx_u $in3,$x30,$inp + vncipherlast $out5,$out5,$in4 + le?vperm $in2,$in2,$in2,$inpperm + lvx_u $in4,$x40,$inp + vncipherlast $out6,$out6,$in5 + le?vperm $in3,$in3,$in3,$inpperm + lvx_u $in5,$x50,$inp + vncipherlast $out7,$out7,$in6 + le?vperm $in4,$in4,$in4,$inpperm + lvx_u $in6,$x60,$inp + vmr $ivec,$in7 + le?vperm $in5,$in5,$in5,$inpperm + lvx_u $in7,$x70,$inp + addi $inp,$inp,0x80 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $in6,$in6,$in6,$inpperm + vxor $out0,$in0,$rndkey0 + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $in7,$in7,$in7,$inpperm + vxor $out1,$in1,$rndkey0 + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + vxor $out2,$in2,$rndkey0 + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x30,$out + vxor $out3,$in3,$rndkey0 + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x40,$out + vxor $out4,$in4,$rndkey0 + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x50,$out + vxor $out5,$in5,$rndkey0 + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x60,$out + vxor $out6,$in6,$rndkey0 + stvx_u $out7,$x70,$out + addi $out,$out,0x80 + vxor $out7,$in7,$rndkey0 + + mtctr $rounds + beq Loop_cbc_dec8x # did $len-=128 borrow? + + addic. $len,$len,128 + beq Lcbc_dec8x_done + nop + nop + +Loop_cbc_dec8x_tail: # up to 7 "words" tail... + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + vncipher $out6,$out6,v24 + vncipher $out7,$out7,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + vncipher $out6,$out6,v25 + vncipher $out7,$out7,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_cbc_dec8x_tail + + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + vncipher $out6,$out6,v24 + vncipher $out7,$out7,v24 + + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + vncipher $out6,$out6,v25 + vncipher $out7,$out7,v25 + + vncipher $out1,$out1,v26 + vncipher $out2,$out2,v26 + vncipher $out3,$out3,v26 + vncipher $out4,$out4,v26 + vncipher $out5,$out5,v26 + vncipher $out6,$out6,v26 + vncipher $out7,$out7,v26 + + vncipher $out1,$out1,v27 + vncipher $out2,$out2,v27 + vncipher $out3,$out3,v27 + vncipher $out4,$out4,v27 + vncipher $out5,$out5,v27 + vncipher $out6,$out6,v27 + vncipher $out7,$out7,v27 + + vncipher $out1,$out1,v28 + vncipher $out2,$out2,v28 + vncipher $out3,$out3,v28 + vncipher $out4,$out4,v28 + vncipher $out5,$out5,v28 + vncipher $out6,$out6,v28 + vncipher $out7,$out7,v28 + + vncipher $out1,$out1,v29 + vncipher $out2,$out2,v29 + vncipher $out3,$out3,v29 + vncipher $out4,$out4,v29 + vncipher $out5,$out5,v29 + vncipher $out6,$out6,v29 + vncipher $out7,$out7,v29 + + vncipher $out1,$out1,v30 + vxor $ivec,$ivec,v31 # last round key + vncipher $out2,$out2,v30 + vxor $in1,$in1,v31 + vncipher $out3,$out3,v30 + vxor $in2,$in2,v31 + vncipher $out4,$out4,v30 + vxor $in3,$in3,v31 + vncipher $out5,$out5,v30 + vxor $in4,$in4,v31 + vncipher $out6,$out6,v30 + vxor $in5,$in5,v31 + vncipher $out7,$out7,v30 + vxor $in6,$in6,v31 + + cmplwi $len,32 # switch($len) + blt Lcbc_dec8x_one + nop + beq Lcbc_dec8x_two + cmplwi $len,64 + blt Lcbc_dec8x_three + nop + beq Lcbc_dec8x_four + cmplwi $len,96 + blt Lcbc_dec8x_five + nop + beq Lcbc_dec8x_six + +Lcbc_dec8x_seven: + vncipherlast $out1,$out1,$ivec + vncipherlast $out2,$out2,$in1 + vncipherlast $out3,$out3,$in2 + vncipherlast $out4,$out4,$in3 + vncipherlast $out5,$out5,$in4 + vncipherlast $out6,$out6,$in5 + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out1,$out1,$out1,$inpperm + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x00,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x10,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x20,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x30,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x40,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x50,$out + stvx_u $out7,$x60,$out + addi $out,$out,0x70 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_six: + vncipherlast $out2,$out2,$ivec + vncipherlast $out3,$out3,$in2 + vncipherlast $out4,$out4,$in3 + vncipherlast $out5,$out5,$in4 + vncipherlast $out6,$out6,$in5 + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out2,$out2,$out2,$inpperm + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x00,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x10,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x20,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x30,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x40,$out + stvx_u $out7,$x50,$out + addi $out,$out,0x60 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_five: + vncipherlast $out3,$out3,$ivec + vncipherlast $out4,$out4,$in3 + vncipherlast $out5,$out5,$in4 + vncipherlast $out6,$out6,$in5 + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out3,$out3,$out3,$inpperm + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x00,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x10,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x20,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x30,$out + stvx_u $out7,$x40,$out + addi $out,$out,0x50 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_four: + vncipherlast $out4,$out4,$ivec + vncipherlast $out5,$out5,$in4 + vncipherlast $out6,$out6,$in5 + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out4,$out4,$out4,$inpperm + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x00,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x10,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x20,$out + stvx_u $out7,$x30,$out + addi $out,$out,0x40 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_three: + vncipherlast $out5,$out5,$ivec + vncipherlast $out6,$out6,$in5 + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out5,$out5,$out5,$inpperm + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x00,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x10,$out + stvx_u $out7,$x20,$out + addi $out,$out,0x30 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_two: + vncipherlast $out6,$out6,$ivec + vncipherlast $out7,$out7,$in6 + vmr $ivec,$in7 + + le?vperm $out6,$out6,$out6,$inpperm + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x00,$out + stvx_u $out7,$x10,$out + addi $out,$out,0x20 + b Lcbc_dec8x_done + +.align 5 +Lcbc_dec8x_one: + vncipherlast $out7,$out7,$ivec + vmr $ivec,$in7 + + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out7,0,$out + addi $out,$out,0x10 + +Lcbc_dec8x_done: + le?vperm $ivec,$ivec,$ivec,$inpperm + stvx_u $ivec,0,$ivp # write [unaligned] iv + + li r10,`$FRAME+15` + li r11,`$FRAME+31` + stvx $inpperm,r10,$sp # wipe copies of round keys + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + + mtspr 256,$vrsave + lvx v20,r10,$sp # ABI says so + addi r10,r10,32 + lvx v21,r11,$sp + addi r11,r11,32 + lvx v22,r10,$sp + addi r10,r10,32 + lvx v23,r11,$sp + addi r11,r11,32 + lvx v24,r10,$sp + addi r10,r10,32 + lvx v25,r11,$sp + addi r11,r11,32 + lvx v26,r10,$sp + addi r10,r10,32 + lvx v27,r11,$sp + addi r11,r11,32 + lvx v28,r10,$sp + addi r10,r10,32 + lvx v29,r11,$sp + addi r11,r11,32 + lvx v30,r10,$sp + lvx v31,r11,$sp + $POP r26,`$FRAME+21*16+0*$SIZE_T`($sp) + $POP r27,`$FRAME+21*16+1*$SIZE_T`($sp) + $POP r28,`$FRAME+21*16+2*$SIZE_T`($sp) + $POP r29,`$FRAME+21*16+3*$SIZE_T`($sp) + $POP r30,`$FRAME+21*16+4*$SIZE_T`($sp) + $POP r31,`$FRAME+21*16+5*$SIZE_T`($sp) + addi $sp,$sp,`$FRAME+21*16+6*$SIZE_T` + blr + .long 0 + .byte 0,12,0x04,0,0x80,6,6,0 + .long 0 +.size .${prefix}_cbc_encrypt,.-.${prefix}_cbc_encrypt +___ +}} }}} + +######################################################################### +{{{ # CTR procedure[s] # +my ($inp,$out,$len,$key,$ivp,$x10,$rounds,$idx)=map("r$_",(3..10)); +my ($rndkey0,$rndkey1,$inout,$tmp)= map("v$_",(0..3)); +my ($ivec,$inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm,$one)= + map("v$_",(4..11)); +my $dat=$tmp; + +$code.=<<___; +.globl .${prefix}_ctr32_encrypt_blocks +.align 5 +.${prefix}_ctr32_encrypt_blocks: + ${UCMP}i $len,1 + bltlr- + + lis r0,0xfff0 + mfspr $vrsave,256 + mtspr 256,r0 + + li $idx,15 + vxor $rndkey0,$rndkey0,$rndkey0 + le?vspltisb $tmp,0x0f + + lvx $ivec,0,$ivp # load [unaligned] iv + lvsl $inpperm,0,$ivp + lvx $inptail,$idx,$ivp + vspltisb $one,1 + le?vxor $inpperm,$inpperm,$tmp + vperm $ivec,$ivec,$inptail,$inpperm + vsldoi $one,$rndkey0,$one,1 + + neg r11,$inp + ?lvsl $keyperm,0,$key # prepare for unaligned key + lwz $rounds,240($key) + + lvsr $inpperm,0,r11 # prepare for unaligned load + lvx $inptail,0,$inp + addi $inp,$inp,15 # 15 is not typo + le?vxor $inpperm,$inpperm,$tmp + + srwi $rounds,$rounds,1 + li $idx,16 + subi $rounds,$rounds,1 + + ${UCMP}i $len,8 + bge _aesp8_ctr32_encrypt8x + + ?lvsr $outperm,0,$out # prepare for unaligned store + vspltisb $outmask,-1 + lvx $outhead,0,$out + ?vperm $outmask,$rndkey0,$outmask,$outperm + le?vxor $outperm,$outperm,$tmp + + lvx $rndkey0,0,$key + mtctr $rounds + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$ivec,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + b Loop_ctr32_enc + +.align 5 +Loop_ctr32_enc: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + bdnz Loop_ctr32_enc + + vadduwm $ivec,$ivec,$one + vmr $dat,$inptail + lvx $inptail,0,$inp + addi $inp,$inp,16 + subic. $len,$len,1 # blocks-- + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key + vperm $dat,$dat,$inptail,$inpperm + li $idx,16 + ?vperm $rndkey1,$rndkey0,$rndkey1,$keyperm + lvx $rndkey0,0,$key + vxor $dat,$dat,$rndkey1 # last round key + vcipherlast $inout,$inout,$dat + + lvx $rndkey1,$idx,$key + addi $idx,$idx,16 + vperm $inout,$inout,$inout,$outperm + vsel $dat,$outhead,$inout,$outmask + mtctr $rounds + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vmr $outhead,$inout + vxor $inout,$ivec,$rndkey0 + lvx $rndkey0,$idx,$key + addi $idx,$idx,16 + stvx $dat,0,$out + addi $out,$out,16 + bne Loop_ctr32_enc + + addi $out,$out,-1 + lvx $inout,0,$out # redundant in aligned case + vsel $inout,$outhead,$inout,$outmask + stvx $inout,0,$out + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,6,0 + .long 0 +___ +######################################################################### +{{ # Optimized CTR procedure # +my $key_="r11"; +my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,8,26..31)); + $x00=0 if ($flavour =~ /osx/); +my ($in0, $in1, $in2, $in3, $in4, $in5, $in6, $in7 )=map("v$_",(0..3,10,12..14)); +my ($out0,$out1,$out2,$out3,$out4,$out5,$out6,$out7)=map("v$_",(15..22)); +my $rndkey0="v23"; # v24-v25 rotating buffer for first found keys + # v26-v31 last 6 round keys +my ($tmp,$keyperm)=($in3,$in4); # aliases with "caller", redundant assignment +my ($two,$three,$four)=($outhead,$outperm,$outmask); + +$code.=<<___; +.align 5 +_aesp8_ctr32_encrypt8x: + $STU $sp,-`($FRAME+21*16+6*$SIZE_T)`($sp) + li r10,`$FRAME+8*16+15` + li r11,`$FRAME+8*16+31` + stvx v20,r10,$sp # ABI says so + addi r10,r10,32 + stvx v21,r11,$sp + addi r11,r11,32 + stvx v22,r10,$sp + addi r10,r10,32 + stvx v23,r11,$sp + addi r11,r11,32 + stvx v24,r10,$sp + addi r10,r10,32 + stvx v25,r11,$sp + addi r11,r11,32 + stvx v26,r10,$sp + addi r10,r10,32 + stvx v27,r11,$sp + addi r11,r11,32 + stvx v28,r10,$sp + addi r10,r10,32 + stvx v29,r11,$sp + addi r11,r11,32 + stvx v30,r10,$sp + stvx v31,r11,$sp + li r0,-1 + stw $vrsave,`$FRAME+21*16-4`($sp) # save vrsave + li $x10,0x10 + $PUSH r26,`$FRAME+21*16+0*$SIZE_T`($sp) + li $x20,0x20 + $PUSH r27,`$FRAME+21*16+1*$SIZE_T`($sp) + li $x30,0x30 + $PUSH r28,`$FRAME+21*16+2*$SIZE_T`($sp) + li $x40,0x40 + $PUSH r29,`$FRAME+21*16+3*$SIZE_T`($sp) + li $x50,0x50 + $PUSH r30,`$FRAME+21*16+4*$SIZE_T`($sp) + li $x60,0x60 + $PUSH r31,`$FRAME+21*16+5*$SIZE_T`($sp) + li $x70,0x70 + mtspr 256,r0 + + subi $rounds,$rounds,3 # -4 in total + + lvx $rndkey0,$x00,$key # load key schedule + lvx v30,$x10,$key + addi $key,$key,0x20 + lvx v31,$x00,$key + ?vperm $rndkey0,$rndkey0,v30,$keyperm + addi $key_,$sp,$FRAME+15 + mtctr $rounds + +Load_ctr32_enc_key: + ?vperm v24,v30,v31,$keyperm + lvx v30,$x10,$key + addi $key,$key,0x20 + stvx v24,$x00,$key_ # off-load round[1] + ?vperm v25,v31,v30,$keyperm + lvx v31,$x00,$key + stvx v25,$x10,$key_ # off-load round[2] + addi $key_,$key_,0x20 + bdnz Load_ctr32_enc_key + + lvx v26,$x10,$key + ?vperm v24,v30,v31,$keyperm + lvx v27,$x20,$key + stvx v24,$x00,$key_ # off-load round[3] + ?vperm v25,v31,v26,$keyperm + lvx v28,$x30,$key + stvx v25,$x10,$key_ # off-load round[4] + addi $key_,$sp,$FRAME+15 # rewind $key_ + ?vperm v26,v26,v27,$keyperm + lvx v29,$x40,$key + ?vperm v27,v27,v28,$keyperm + lvx v30,$x50,$key + ?vperm v28,v28,v29,$keyperm + lvx v31,$x60,$key + ?vperm v29,v29,v30,$keyperm + lvx $out0,$x70,$key # borrow $out0 + ?vperm v30,v30,v31,$keyperm + lvx v24,$x00,$key_ # pre-load round[1] + ?vperm v31,v31,$out0,$keyperm + lvx v25,$x10,$key_ # pre-load round[2] + + vadduwm $two,$one,$one + subi $inp,$inp,15 # undo "caller" + $SHL $len,$len,4 + + vadduwm $out1,$ivec,$one # counter values ... + vadduwm $out2,$ivec,$two + vxor $out0,$ivec,$rndkey0 # ... xored with rndkey[0] + le?li $idx,8 + vadduwm $out3,$out1,$two + vxor $out1,$out1,$rndkey0 + le?lvsl $inpperm,0,$idx + vadduwm $out4,$out2,$two + vxor $out2,$out2,$rndkey0 + le?vspltisb $tmp,0x0f + vadduwm $out5,$out3,$two + vxor $out3,$out3,$rndkey0 + le?vxor $inpperm,$inpperm,$tmp # transform for lvx_u/stvx_u + vadduwm $out6,$out4,$two + vxor $out4,$out4,$rndkey0 + vadduwm $out7,$out5,$two + vxor $out5,$out5,$rndkey0 + vadduwm $ivec,$out6,$two # next counter value + vxor $out6,$out6,$rndkey0 + vxor $out7,$out7,$rndkey0 + + mtctr $rounds + b Loop_ctr32_enc8x +.align 5 +Loop_ctr32_enc8x: + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vcipher $out4,$out4,v24 + vcipher $out5,$out5,v24 + vcipher $out6,$out6,v24 + vcipher $out7,$out7,v24 +Loop_ctr32_enc8x_middle: + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vcipher $out4,$out4,v25 + vcipher $out5,$out5,v25 + vcipher $out6,$out6,v25 + vcipher $out7,$out7,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_ctr32_enc8x + + subic r11,$len,256 # $len-256, borrow $key_ + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vcipher $out4,$out4,v24 + vcipher $out5,$out5,v24 + vcipher $out6,$out6,v24 + vcipher $out7,$out7,v24 + + subfe r0,r0,r0 # borrow?-1:0 + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vcipher $out4,$out4,v25 + vcipher $out5,$out5,v25 + vcipher $out6,$out6,v25 + vcipher $out7,$out7,v25 + + and r0,r0,r11 + addi $key_,$sp,$FRAME+15 # rewind $key_ + vcipher $out0,$out0,v26 + vcipher $out1,$out1,v26 + vcipher $out2,$out2,v26 + vcipher $out3,$out3,v26 + vcipher $out4,$out4,v26 + vcipher $out5,$out5,v26 + vcipher $out6,$out6,v26 + vcipher $out7,$out7,v26 + lvx v24,$x00,$key_ # re-pre-load round[1] + + subic $len,$len,129 # $len-=129 + vcipher $out0,$out0,v27 + addi $len,$len,1 # $len-=128 really + vcipher $out1,$out1,v27 + vcipher $out2,$out2,v27 + vcipher $out3,$out3,v27 + vcipher $out4,$out4,v27 + vcipher $out5,$out5,v27 + vcipher $out6,$out6,v27 + vcipher $out7,$out7,v27 + lvx v25,$x10,$key_ # re-pre-load round[2] + + vcipher $out0,$out0,v28 + lvx_u $in0,$x00,$inp # load input + vcipher $out1,$out1,v28 + lvx_u $in1,$x10,$inp + vcipher $out2,$out2,v28 + lvx_u $in2,$x20,$inp + vcipher $out3,$out3,v28 + lvx_u $in3,$x30,$inp + vcipher $out4,$out4,v28 + lvx_u $in4,$x40,$inp + vcipher $out5,$out5,v28 + lvx_u $in5,$x50,$inp + vcipher $out6,$out6,v28 + lvx_u $in6,$x60,$inp + vcipher $out7,$out7,v28 + lvx_u $in7,$x70,$inp + addi $inp,$inp,0x80 + + vcipher $out0,$out0,v29 + le?vperm $in0,$in0,$in0,$inpperm + vcipher $out1,$out1,v29 + le?vperm $in1,$in1,$in1,$inpperm + vcipher $out2,$out2,v29 + le?vperm $in2,$in2,$in2,$inpperm + vcipher $out3,$out3,v29 + le?vperm $in3,$in3,$in3,$inpperm + vcipher $out4,$out4,v29 + le?vperm $in4,$in4,$in4,$inpperm + vcipher $out5,$out5,v29 + le?vperm $in5,$in5,$in5,$inpperm + vcipher $out6,$out6,v29 + le?vperm $in6,$in6,$in6,$inpperm + vcipher $out7,$out7,v29 + le?vperm $in7,$in7,$in7,$inpperm + + add $inp,$inp,r0 # $inp is adjusted in such + # way that at exit from the + # loop inX-in7 are loaded + # with last "words" + subfe. r0,r0,r0 # borrow?-1:0 + vcipher $out0,$out0,v30 + vxor $in0,$in0,v31 # xor with last round key + vcipher $out1,$out1,v30 + vxor $in1,$in1,v31 + vcipher $out2,$out2,v30 + vxor $in2,$in2,v31 + vcipher $out3,$out3,v30 + vxor $in3,$in3,v31 + vcipher $out4,$out4,v30 + vxor $in4,$in4,v31 + vcipher $out5,$out5,v30 + vxor $in5,$in5,v31 + vcipher $out6,$out6,v30 + vxor $in6,$in6,v31 + vcipher $out7,$out7,v30 + vxor $in7,$in7,v31 + + bne Lctr32_enc8x_break # did $len-129 borrow? + + vcipherlast $in0,$out0,$in0 + vcipherlast $in1,$out1,$in1 + vadduwm $out1,$ivec,$one # counter values ... + vcipherlast $in2,$out2,$in2 + vadduwm $out2,$ivec,$two + vxor $out0,$ivec,$rndkey0 # ... xored with rndkey[0] + vcipherlast $in3,$out3,$in3 + vadduwm $out3,$out1,$two + vxor $out1,$out1,$rndkey0 + vcipherlast $in4,$out4,$in4 + vadduwm $out4,$out2,$two + vxor $out2,$out2,$rndkey0 + vcipherlast $in5,$out5,$in5 + vadduwm $out5,$out3,$two + vxor $out3,$out3,$rndkey0 + vcipherlast $in6,$out6,$in6 + vadduwm $out6,$out4,$two + vxor $out4,$out4,$rndkey0 + vcipherlast $in7,$out7,$in7 + vadduwm $out7,$out5,$two + vxor $out5,$out5,$rndkey0 + le?vperm $in0,$in0,$in0,$inpperm + vadduwm $ivec,$out6,$two # next counter value + vxor $out6,$out6,$rndkey0 + le?vperm $in1,$in1,$in1,$inpperm + vxor $out7,$out7,$rndkey0 + mtctr $rounds + + vcipher $out0,$out0,v24 + stvx_u $in0,$x00,$out + le?vperm $in2,$in2,$in2,$inpperm + vcipher $out1,$out1,v24 + stvx_u $in1,$x10,$out + le?vperm $in3,$in3,$in3,$inpperm + vcipher $out2,$out2,v24 + stvx_u $in2,$x20,$out + le?vperm $in4,$in4,$in4,$inpperm + vcipher $out3,$out3,v24 + stvx_u $in3,$x30,$out + le?vperm $in5,$in5,$in5,$inpperm + vcipher $out4,$out4,v24 + stvx_u $in4,$x40,$out + le?vperm $in6,$in6,$in6,$inpperm + vcipher $out5,$out5,v24 + stvx_u $in5,$x50,$out + le?vperm $in7,$in7,$in7,$inpperm + vcipher $out6,$out6,v24 + stvx_u $in6,$x60,$out + vcipher $out7,$out7,v24 + stvx_u $in7,$x70,$out + addi $out,$out,0x80 + + b Loop_ctr32_enc8x_middle + +.align 5 +Lctr32_enc8x_break: + cmpwi $len,-0x60 + blt Lctr32_enc8x_one + nop + beq Lctr32_enc8x_two + cmpwi $len,-0x40 + blt Lctr32_enc8x_three + nop + beq Lctr32_enc8x_four + cmpwi $len,-0x20 + blt Lctr32_enc8x_five + nop + beq Lctr32_enc8x_six + cmpwi $len,0x00 + blt Lctr32_enc8x_seven + +Lctr32_enc8x_eight: + vcipherlast $out0,$out0,$in0 + vcipherlast $out1,$out1,$in1 + vcipherlast $out2,$out2,$in2 + vcipherlast $out3,$out3,$in3 + vcipherlast $out4,$out4,$in4 + vcipherlast $out5,$out5,$in5 + vcipherlast $out6,$out6,$in6 + vcipherlast $out7,$out7,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x30,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x40,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x50,$out + le?vperm $out7,$out7,$out7,$inpperm + stvx_u $out6,$x60,$out + stvx_u $out7,$x70,$out + addi $out,$out,0x80 + b Lctr32_enc8x_done + +.align 5 +Lctr32_enc8x_seven: + vcipherlast $out0,$out0,$in1 + vcipherlast $out1,$out1,$in2 + vcipherlast $out2,$out2,$in3 + vcipherlast $out3,$out3,$in4 + vcipherlast $out4,$out4,$in5 + vcipherlast $out5,$out5,$in6 + vcipherlast $out6,$out6,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x30,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x40,$out + le?vperm $out6,$out6,$out6,$inpperm + stvx_u $out5,$x50,$out + stvx_u $out6,$x60,$out + addi $out,$out,0x70 + b Lctr32_enc8x_done + +.align 5 +Lctr32_enc8x_six: + vcipherlast $out0,$out0,$in2 + vcipherlast $out1,$out1,$in3 + vcipherlast $out2,$out2,$in4 + vcipherlast $out3,$out3,$in5 + vcipherlast $out4,$out4,$in6 + vcipherlast $out5,$out5,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x30,$out + le?vperm $out5,$out5,$out5,$inpperm + stvx_u $out4,$x40,$out + stvx_u $out5,$x50,$out + addi $out,$out,0x60 + b Lctr32_enc8x_done + +.align 5 +Lctr32_enc8x_five: + vcipherlast $out0,$out0,$in3 + vcipherlast $out1,$out1,$in4 + vcipherlast $out2,$out2,$in5 + vcipherlast $out3,$out3,$in6 + vcipherlast $out4,$out4,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + le?vperm $out4,$out4,$out4,$inpperm + stvx_u $out3,$x30,$out + stvx_u $out4,$x40,$out + addi $out,$out,0x50 + b Lctr32_enc8x_done + +.align 5 +Lctr32_enc8x_four: + vcipherlast $out0,$out0,$in4 + vcipherlast $out1,$out1,$in5 + vcipherlast $out2,$out2,$in6 + vcipherlast $out3,$out3,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$inpperm + stvx_u $out2,$x20,$out + stvx_u $out3,$x30,$out + addi $out,$out,0x40 + b Lctr32_enc8x_done + +.align 5 +Lctr32_enc8x_three: + vcipherlast $out0,$out0,$in5 + vcipherlast $out1,$out1,$in6 + vcipherlast $out2,$out2,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + le?vperm $out2,$out2,$out2,$inpperm + stvx_u $out1,$x10,$out + stvx_u $out2,$x20,$out + addi $out,$out,0x30 + b Lcbc_dec8x_done + +.align 5 +Lctr32_enc8x_two: + vcipherlast $out0,$out0,$in6 + vcipherlast $out1,$out1,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + le?vperm $out1,$out1,$out1,$inpperm + stvx_u $out0,$x00,$out + stvx_u $out1,$x10,$out + addi $out,$out,0x20 + b Lcbc_dec8x_done + +.align 5 +Lctr32_enc8x_one: + vcipherlast $out0,$out0,$in7 + + le?vperm $out0,$out0,$out0,$inpperm + stvx_u $out0,0,$out + addi $out,$out,0x10 + +Lctr32_enc8x_done: + li r10,`$FRAME+15` + li r11,`$FRAME+31` + stvx $inpperm,r10,$sp # wipe copies of round keys + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + stvx $inpperm,r10,$sp + addi r10,r10,32 + stvx $inpperm,r11,$sp + addi r11,r11,32 + + mtspr 256,$vrsave + lvx v20,r10,$sp # ABI says so + addi r10,r10,32 + lvx v21,r11,$sp + addi r11,r11,32 + lvx v22,r10,$sp + addi r10,r10,32 + lvx v23,r11,$sp + addi r11,r11,32 + lvx v24,r10,$sp + addi r10,r10,32 + lvx v25,r11,$sp + addi r11,r11,32 + lvx v26,r10,$sp + addi r10,r10,32 + lvx v27,r11,$sp + addi r11,r11,32 + lvx v28,r10,$sp + addi r10,r10,32 + lvx v29,r11,$sp + addi r11,r11,32 + lvx v30,r10,$sp + lvx v31,r11,$sp + $POP r26,`$FRAME+21*16+0*$SIZE_T`($sp) + $POP r27,`$FRAME+21*16+1*$SIZE_T`($sp) + $POP r28,`$FRAME+21*16+2*$SIZE_T`($sp) + $POP r29,`$FRAME+21*16+3*$SIZE_T`($sp) + $POP r30,`$FRAME+21*16+4*$SIZE_T`($sp) + $POP r31,`$FRAME+21*16+5*$SIZE_T`($sp) + addi $sp,$sp,`$FRAME+21*16+6*$SIZE_T` + blr + .long 0 + .byte 0,12,0x04,0,0x80,6,6,0 + .long 0 +.size .${prefix}_ctr32_encrypt_blocks,.-.${prefix}_ctr32_encrypt_blocks +___ +}} }}} + +######################################################################### +{{{ # XTS procedures # +# int aes_p8_xts_[en|de]crypt(const char *inp, char *out, size_t len, # +# const AES_KEY *key1, const AES_KEY *key2, # +# [const] unsigned char iv[16]); # +# If $key2 is NULL, then a "tweak chaining" mode is engaged, in which # +# input tweak value is assumed to be encrypted already, and last tweak # +# value, one suitable for consecutive call on same chunk of data, is # +# written back to original buffer. In addition, in "tweak chaining" # +# mode only complete input blocks are processed. # + +my ($inp,$out,$len,$key1,$key2,$ivp,$rounds,$idx) = map("r$_",(3..10)); +my ($rndkey0,$rndkey1,$inout) = map("v$_",(0..2)); +my ($output,$inptail,$inpperm,$leperm,$keyperm) = map("v$_",(3..7)); +my ($tweak,$seven,$eighty7,$tmp,$tweak1) = map("v$_",(8..12)); +my $taillen = $key2; + + ($inp,$idx) = ($idx,$inp); # reassign + +$code.=<<___; +.globl .${prefix}_xts_encrypt +.align 5 +.${prefix}_xts_encrypt: + mr $inp,r3 # reassign + li r3,-1 + ${UCMP}i $len,16 + bltlr- + + lis r0,0xfff0 + mfspr r12,256 # save vrsave + li r11,0 + mtspr 256,r0 + + vspltisb $seven,0x07 # 0x070707..07 + le?lvsl $leperm,r11,r11 + le?vspltisb $tmp,0x0f + le?vxor $leperm,$leperm,$seven + + li $idx,15 + lvx $tweak,0,$ivp # load [unaligned] iv + lvsl $inpperm,0,$ivp + lvx $inptail,$idx,$ivp + le?vxor $inpperm,$inpperm,$tmp + vperm $tweak,$tweak,$inptail,$inpperm + + neg r11,$inp + lvsr $inpperm,0,r11 # prepare for unaligned load + lvx $inout,0,$inp + addi $inp,$inp,15 # 15 is not typo + le?vxor $inpperm,$inpperm,$tmp + + ${UCMP}i $key2,0 # key2==NULL? + beq Lxts_enc_no_key2 + + ?lvsl $keyperm,0,$key2 # prepare for unaligned key + lwz $rounds,240($key2) + srwi $rounds,$rounds,1 + subi $rounds,$rounds,1 + li $idx,16 + + lvx $rndkey0,0,$key2 + lvx $rndkey1,$idx,$key2 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $tweak,$tweak,$rndkey0 + lvx $rndkey0,$idx,$key2 + addi $idx,$idx,16 + mtctr $rounds + +Ltweak_xts_enc: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $tweak,$tweak,$rndkey1 + lvx $rndkey1,$idx,$key2 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipher $tweak,$tweak,$rndkey0 + lvx $rndkey0,$idx,$key2 + addi $idx,$idx,16 + bdnz Ltweak_xts_enc + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $tweak,$tweak,$rndkey1 + lvx $rndkey1,$idx,$key2 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipherlast $tweak,$tweak,$rndkey0 + + li $ivp,0 # don't chain the tweak + b Lxts_enc + +Lxts_enc_no_key2: + li $idx,-16 + and $len,$len,$idx # in "tweak chaining" + # mode only complete + # blocks are processed +Lxts_enc: + lvx $inptail,0,$inp + addi $inp,$inp,16 + + ?lvsl $keyperm,0,$key1 # prepare for unaligned key + lwz $rounds,240($key1) + srwi $rounds,$rounds,1 + subi $rounds,$rounds,1 + li $idx,16 + + vslb $eighty7,$seven,$seven # 0x808080..80 + vor $eighty7,$eighty7,$seven # 0x878787..87 + vspltisb $tmp,1 # 0x010101..01 + vsldoi $eighty7,$eighty7,$tmp,15 # 0x870101..01 + + ${UCMP}i $len,96 + bge _aesp8_xts_encrypt6x + + andi. $taillen,$len,15 + subic r0,$len,32 + subi $taillen,$taillen,16 + subfe r0,r0,r0 + and r0,r0,$taillen + add $inp,$inp,r0 + + lvx $rndkey0,0,$key1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + vperm $inout,$inout,$inptail,$inpperm + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$inout,$tweak + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + mtctr $rounds + b Loop_xts_enc + +.align 5 +Loop_xts_enc: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + bdnz Loop_xts_enc + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + li $idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $rndkey0,$rndkey0,$tweak + vcipherlast $output,$inout,$rndkey0 + + le?vperm $tmp,$output,$output,$leperm + be?nop + le?stvx_u $tmp,0,$out + be?stvx_u $output,0,$out + addi $out,$out,16 + + subic. $len,$len,16 + beq Lxts_enc_done + + vmr $inout,$inptail + lvx $inptail,0,$inp + addi $inp,$inp,16 + lvx $rndkey0,0,$key1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + + subic r0,$len,32 + subfe r0,r0,r0 + and r0,r0,$taillen + add $inp,$inp,r0 + + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $tweak,$tweak,$tmp + + vperm $inout,$inout,$inptail,$inpperm + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$inout,$tweak + vxor $output,$output,$rndkey0 # just in case $len<16 + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + + mtctr $rounds + ${UCMP}i $len,16 + bge Loop_xts_enc + + vxor $output,$output,$tweak + lvsr $inpperm,0,$len # $inpperm is no longer needed + vxor $inptail,$inptail,$inptail # $inptail is no longer needed + vspltisb $tmp,-1 + vperm $inptail,$inptail,$tmp,$inpperm + vsel $inout,$inout,$output,$inptail + + subi r11,$out,17 + subi $out,$out,16 + mtctr $len + li $len,16 +Loop_xts_enc_steal: + lbzu r0,1(r11) + stb r0,16(r11) + bdnz Loop_xts_enc_steal + + mtctr $rounds + b Loop_xts_enc # one more time... + +Lxts_enc_done: + ${UCMP}i $ivp,0 + beq Lxts_enc_ret + + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $tweak,$tweak,$tmp + + le?vperm $tweak,$tweak,$tweak,$leperm + stvx_u $tweak,0,$ivp + +Lxts_enc_ret: + mtspr 256,r12 # restore vrsave + li r3,0 + blr + .long 0 + .byte 0,12,0x04,0,0x80,6,6,0 + .long 0 +.size .${prefix}_xts_encrypt,.-.${prefix}_xts_encrypt + +.globl .${prefix}_xts_decrypt +.align 5 +.${prefix}_xts_decrypt: + mr $inp,r3 # reassign + li r3,-1 + ${UCMP}i $len,16 + bltlr- + + lis r0,0xfff8 + mfspr r12,256 # save vrsave + li r11,0 + mtspr 256,r0 + + andi. r0,$len,15 + neg r0,r0 + andi. r0,r0,16 + sub $len,$len,r0 + + vspltisb $seven,0x07 # 0x070707..07 + le?lvsl $leperm,r11,r11 + le?vspltisb $tmp,0x0f + le?vxor $leperm,$leperm,$seven + + li $idx,15 + lvx $tweak,0,$ivp # load [unaligned] iv + lvsl $inpperm,0,$ivp + lvx $inptail,$idx,$ivp + le?vxor $inpperm,$inpperm,$tmp + vperm $tweak,$tweak,$inptail,$inpperm + + neg r11,$inp + lvsr $inpperm,0,r11 # prepare for unaligned load + lvx $inout,0,$inp + addi $inp,$inp,15 # 15 is not typo + le?vxor $inpperm,$inpperm,$tmp + + ${UCMP}i $key2,0 # key2==NULL? + beq Lxts_dec_no_key2 + + ?lvsl $keyperm,0,$key2 # prepare for unaligned key + lwz $rounds,240($key2) + srwi $rounds,$rounds,1 + subi $rounds,$rounds,1 + li $idx,16 + + lvx $rndkey0,0,$key2 + lvx $rndkey1,$idx,$key2 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $tweak,$tweak,$rndkey0 + lvx $rndkey0,$idx,$key2 + addi $idx,$idx,16 + mtctr $rounds + +Ltweak_xts_dec: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $tweak,$tweak,$rndkey1 + lvx $rndkey1,$idx,$key2 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipher $tweak,$tweak,$rndkey0 + lvx $rndkey0,$idx,$key2 + addi $idx,$idx,16 + bdnz Ltweak_xts_dec + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vcipher $tweak,$tweak,$rndkey1 + lvx $rndkey1,$idx,$key2 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vcipherlast $tweak,$tweak,$rndkey0 + + li $ivp,0 # don't chain the tweak + b Lxts_dec + +Lxts_dec_no_key2: + neg $idx,$len + andi. $idx,$idx,15 + add $len,$len,$idx # in "tweak chaining" + # mode only complete + # blocks are processed +Lxts_dec: + lvx $inptail,0,$inp + addi $inp,$inp,16 + + ?lvsl $keyperm,0,$key1 # prepare for unaligned key + lwz $rounds,240($key1) + srwi $rounds,$rounds,1 + subi $rounds,$rounds,1 + li $idx,16 + + vslb $eighty7,$seven,$seven # 0x808080..80 + vor $eighty7,$eighty7,$seven # 0x878787..87 + vspltisb $tmp,1 # 0x010101..01 + vsldoi $eighty7,$eighty7,$tmp,15 # 0x870101..01 + + ${UCMP}i $len,96 + bge _aesp8_xts_decrypt6x + + lvx $rndkey0,0,$key1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + vperm $inout,$inout,$inptail,$inpperm + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$inout,$tweak + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + mtctr $rounds + + ${UCMP}i $len,16 + blt Ltail_xts_dec + be?b Loop_xts_dec + +.align 5 +Loop_xts_dec: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vncipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + bdnz Loop_xts_dec + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + li $idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $rndkey0,$rndkey0,$tweak + vncipherlast $output,$inout,$rndkey0 + + le?vperm $tmp,$output,$output,$leperm + be?nop + le?stvx_u $tmp,0,$out + be?stvx_u $output,0,$out + addi $out,$out,16 + + subic. $len,$len,16 + beq Lxts_dec_done + + vmr $inout,$inptail + lvx $inptail,0,$inp + addi $inp,$inp,16 + lvx $rndkey0,0,$key1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $tweak,$tweak,$tmp + + vperm $inout,$inout,$inptail,$inpperm + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $inout,$inout,$tweak + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + + mtctr $rounds + ${UCMP}i $len,16 + bge Loop_xts_dec + +Ltail_xts_dec: + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak1,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $tweak1,$tweak1,$tmp + + subi $inp,$inp,16 + add $inp,$inp,$len + + vxor $inout,$inout,$tweak # :-( + vxor $inout,$inout,$tweak1 # :-) + +Loop_xts_dec_short: + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vncipher $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + bdnz Loop_xts_dec_short + + ?vperm $rndkey1,$rndkey1,$rndkey0,$keyperm + vncipher $inout,$inout,$rndkey1 + lvx $rndkey1,$idx,$key1 + li $idx,16 + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + vxor $rndkey0,$rndkey0,$tweak1 + vncipherlast $output,$inout,$rndkey0 + + le?vperm $tmp,$output,$output,$leperm + be?nop + le?stvx_u $tmp,0,$out + be?stvx_u $output,0,$out + + vmr $inout,$inptail + lvx $inptail,0,$inp + #addi $inp,$inp,16 + lvx $rndkey0,0,$key1 + lvx $rndkey1,$idx,$key1 + addi $idx,$idx,16 + vperm $inout,$inout,$inptail,$inpperm + ?vperm $rndkey0,$rndkey0,$rndkey1,$keyperm + + lvsr $inpperm,0,$len # $inpperm is no longer needed + vxor $inptail,$inptail,$inptail # $inptail is no longer needed + vspltisb $tmp,-1 + vperm $inptail,$inptail,$tmp,$inpperm + vsel $inout,$inout,$output,$inptail + + vxor $rndkey0,$rndkey0,$tweak + vxor $inout,$inout,$rndkey0 + lvx $rndkey0,$idx,$key1 + addi $idx,$idx,16 + + subi r11,$out,1 + mtctr $len + li $len,16 +Loop_xts_dec_steal: + lbzu r0,1(r11) + stb r0,16(r11) + bdnz Loop_xts_dec_steal + + mtctr $rounds + b Loop_xts_dec # one more time... + +Lxts_dec_done: + ${UCMP}i $ivp,0 + beq Lxts_dec_ret + + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $tweak,$tweak,$tmp + + le?vperm $tweak,$tweak,$tweak,$leperm + stvx_u $tweak,0,$ivp + +Lxts_dec_ret: + mtspr 256,r12 # restore vrsave + li r3,0 + blr + .long 0 + .byte 0,12,0x04,0,0x80,6,6,0 + .long 0 +.size .${prefix}_xts_decrypt,.-.${prefix}_xts_decrypt +___ +######################################################################### +{{ # Optimized XTS procedures # +my $key_=$key2; +my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,3,26..31)); + $x00=0 if ($flavour =~ /osx/); +my ($in0, $in1, $in2, $in3, $in4, $in5 )=map("v$_",(0..5)); +my ($out0, $out1, $out2, $out3, $out4, $out5)=map("v$_",(7,12..16)); +my ($twk0, $twk1, $twk2, $twk3, $twk4, $twk5)=map("v$_",(17..22)); +my $rndkey0="v23"; # v24-v25 rotating buffer for first found keys + # v26-v31 last 6 round keys +my ($keyperm)=($out0); # aliases with "caller", redundant assignment +my $taillen=$x70; + +$code.=<<___; +.align 5 +_aesp8_xts_encrypt6x: + $STU $sp,-`($FRAME+21*16+6*$SIZE_T)`($sp) + mflr r11 + li r7,`$FRAME+8*16+15` + li r3,`$FRAME+8*16+31` + $PUSH r11,`$FRAME+21*16+6*$SIZE_T+$LRSAVE`($sp) + stvx v20,r7,$sp # ABI says so + addi r7,r7,32 + stvx v21,r3,$sp + addi r3,r3,32 + stvx v22,r7,$sp + addi r7,r7,32 + stvx v23,r3,$sp + addi r3,r3,32 + stvx v24,r7,$sp + addi r7,r7,32 + stvx v25,r3,$sp + addi r3,r3,32 + stvx v26,r7,$sp + addi r7,r7,32 + stvx v27,r3,$sp + addi r3,r3,32 + stvx v28,r7,$sp + addi r7,r7,32 + stvx v29,r3,$sp + addi r3,r3,32 + stvx v30,r7,$sp + stvx v31,r3,$sp + li r0,-1 + stw $vrsave,`$FRAME+21*16-4`($sp) # save vrsave + li $x10,0x10 + $PUSH r26,`$FRAME+21*16+0*$SIZE_T`($sp) + li $x20,0x20 + $PUSH r27,`$FRAME+21*16+1*$SIZE_T`($sp) + li $x30,0x30 + $PUSH r28,`$FRAME+21*16+2*$SIZE_T`($sp) + li $x40,0x40 + $PUSH r29,`$FRAME+21*16+3*$SIZE_T`($sp) + li $x50,0x50 + $PUSH r30,`$FRAME+21*16+4*$SIZE_T`($sp) + li $x60,0x60 + $PUSH r31,`$FRAME+21*16+5*$SIZE_T`($sp) + li $x70,0x70 + mtspr 256,r0 + + subi $rounds,$rounds,3 # -4 in total + + lvx $rndkey0,$x00,$key1 # load key schedule + lvx v30,$x10,$key1 + addi $key1,$key1,0x20 + lvx v31,$x00,$key1 + ?vperm $rndkey0,$rndkey0,v30,$keyperm + addi $key_,$sp,$FRAME+15 + mtctr $rounds + +Load_xts_enc_key: + ?vperm v24,v30,v31,$keyperm + lvx v30,$x10,$key1 + addi $key1,$key1,0x20 + stvx v24,$x00,$key_ # off-load round[1] + ?vperm v25,v31,v30,$keyperm + lvx v31,$x00,$key1 + stvx v25,$x10,$key_ # off-load round[2] + addi $key_,$key_,0x20 + bdnz Load_xts_enc_key + + lvx v26,$x10,$key1 + ?vperm v24,v30,v31,$keyperm + lvx v27,$x20,$key1 + stvx v24,$x00,$key_ # off-load round[3] + ?vperm v25,v31,v26,$keyperm + lvx v28,$x30,$key1 + stvx v25,$x10,$key_ # off-load round[4] + addi $key_,$sp,$FRAME+15 # rewind $key_ + ?vperm v26,v26,v27,$keyperm + lvx v29,$x40,$key1 + ?vperm v27,v27,v28,$keyperm + lvx v30,$x50,$key1 + ?vperm v28,v28,v29,$keyperm + lvx v31,$x60,$key1 + ?vperm v29,v29,v30,$keyperm + lvx $twk5,$x70,$key1 # borrow $twk5 + ?vperm v30,v30,v31,$keyperm + lvx v24,$x00,$key_ # pre-load round[1] + ?vperm v31,v31,$twk5,$keyperm + lvx v25,$x10,$key_ # pre-load round[2] + + vperm $in0,$inout,$inptail,$inpperm + subi $inp,$inp,31 # undo "caller" + vxor $twk0,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $out0,$in0,$twk0 + vxor $tweak,$tweak,$tmp + + lvx_u $in1,$x10,$inp + vxor $twk1,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in1,$in1,$in1,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out1,$in1,$twk1 + vxor $tweak,$tweak,$tmp + + lvx_u $in2,$x20,$inp + andi. $taillen,$len,15 + vxor $twk2,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in2,$in2,$in2,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out2,$in2,$twk2 + vxor $tweak,$tweak,$tmp + + lvx_u $in3,$x30,$inp + sub $len,$len,$taillen + vxor $twk3,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in3,$in3,$in3,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out3,$in3,$twk3 + vxor $tweak,$tweak,$tmp + + lvx_u $in4,$x40,$inp + subi $len,$len,0x60 + vxor $twk4,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in4,$in4,$in4,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out4,$in4,$twk4 + vxor $tweak,$tweak,$tmp + + lvx_u $in5,$x50,$inp + addi $inp,$inp,0x60 + vxor $twk5,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in5,$in5,$in5,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out5,$in5,$twk5 + vxor $tweak,$tweak,$tmp + + vxor v31,v31,$rndkey0 + mtctr $rounds + b Loop_xts_enc6x + +.align 5 +Loop_xts_enc6x: + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vcipher $out4,$out4,v24 + vcipher $out5,$out5,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vcipher $out4,$out4,v25 + vcipher $out5,$out5,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_xts_enc6x + + subic $len,$len,96 # $len-=96 + vxor $in0,$twk0,v31 # xor with last round key + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk0,$tweak,$rndkey0 + vaddubm $tweak,$tweak,$tweak + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vsldoi $tmp,$tmp,$tmp,15 + vcipher $out4,$out4,v24 + vcipher $out5,$out5,v24 + + subfe. r0,r0,r0 # borrow?-1:0 + vand $tmp,$tmp,$eighty7 + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vxor $tweak,$tweak,$tmp + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vxor $in1,$twk1,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk1,$tweak,$rndkey0 + vcipher $out4,$out4,v25 + vcipher $out5,$out5,v25 + + and r0,r0,$len + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vcipher $out0,$out0,v26 + vcipher $out1,$out1,v26 + vand $tmp,$tmp,$eighty7 + vcipher $out2,$out2,v26 + vcipher $out3,$out3,v26 + vxor $tweak,$tweak,$tmp + vcipher $out4,$out4,v26 + vcipher $out5,$out5,v26 + + add $inp,$inp,r0 # $inp is adjusted in such + # way that at exit from the + # loop inX-in5 are loaded + # with last "words" + vxor $in2,$twk2,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk2,$tweak,$rndkey0 + vaddubm $tweak,$tweak,$tweak + vcipher $out0,$out0,v27 + vcipher $out1,$out1,v27 + vsldoi $tmp,$tmp,$tmp,15 + vcipher $out2,$out2,v27 + vcipher $out3,$out3,v27 + vand $tmp,$tmp,$eighty7 + vcipher $out4,$out4,v27 + vcipher $out5,$out5,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vxor $tweak,$tweak,$tmp + vcipher $out0,$out0,v28 + vcipher $out1,$out1,v28 + vxor $in3,$twk3,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk3,$tweak,$rndkey0 + vcipher $out2,$out2,v28 + vcipher $out3,$out3,v28 + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vcipher $out4,$out4,v28 + vcipher $out5,$out5,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + vand $tmp,$tmp,$eighty7 + + vcipher $out0,$out0,v29 + vcipher $out1,$out1,v29 + vxor $tweak,$tweak,$tmp + vcipher $out2,$out2,v29 + vcipher $out3,$out3,v29 + vxor $in4,$twk4,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk4,$tweak,$rndkey0 + vcipher $out4,$out4,v29 + vcipher $out5,$out5,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + + vcipher $out0,$out0,v30 + vcipher $out1,$out1,v30 + vand $tmp,$tmp,$eighty7 + vcipher $out2,$out2,v30 + vcipher $out3,$out3,v30 + vxor $tweak,$tweak,$tmp + vcipher $out4,$out4,v30 + vcipher $out5,$out5,v30 + vxor $in5,$twk5,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk5,$tweak,$rndkey0 + + vcipherlast $out0,$out0,$in0 + lvx_u $in0,$x00,$inp # load next input block + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vcipherlast $out1,$out1,$in1 + lvx_u $in1,$x10,$inp + vcipherlast $out2,$out2,$in2 + le?vperm $in0,$in0,$in0,$leperm + lvx_u $in2,$x20,$inp + vand $tmp,$tmp,$eighty7 + vcipherlast $out3,$out3,$in3 + le?vperm $in1,$in1,$in1,$leperm + lvx_u $in3,$x30,$inp + vcipherlast $out4,$out4,$in4 + le?vperm $in2,$in2,$in2,$leperm + lvx_u $in4,$x40,$inp + vxor $tweak,$tweak,$tmp + vcipherlast $tmp,$out5,$in5 # last block might be needed + # in stealing mode + le?vperm $in3,$in3,$in3,$leperm + lvx_u $in5,$x50,$inp + addi $inp,$inp,0x60 + le?vperm $in4,$in4,$in4,$leperm + le?vperm $in5,$in5,$in5,$leperm + + le?vperm $out0,$out0,$out0,$leperm + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk0 + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + vxor $out1,$in1,$twk1 + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + vxor $out2,$in2,$twk2 + le?vperm $out4,$out4,$out4,$leperm + stvx_u $out3,$x30,$out + vxor $out3,$in3,$twk3 + le?vperm $out5,$tmp,$tmp,$leperm + stvx_u $out4,$x40,$out + vxor $out4,$in4,$twk4 + le?stvx_u $out5,$x50,$out + be?stvx_u $tmp, $x50,$out + vxor $out5,$in5,$twk5 + addi $out,$out,0x60 + + mtctr $rounds + beq Loop_xts_enc6x # did $len-=96 borrow? + + addic. $len,$len,0x60 + beq Lxts_enc6x_zero + cmpwi $len,0x20 + blt Lxts_enc6x_one + nop + beq Lxts_enc6x_two + cmpwi $len,0x40 + blt Lxts_enc6x_three + nop + beq Lxts_enc6x_four + +Lxts_enc6x_five: + vxor $out0,$in1,$twk0 + vxor $out1,$in2,$twk1 + vxor $out2,$in3,$twk2 + vxor $out3,$in4,$twk3 + vxor $out4,$in5,$twk4 + + bl _aesp8_xts_enc5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk5 # unused tweak + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + vxor $tmp,$out4,$twk5 # last block prep for stealing + le?vperm $out4,$out4,$out4,$leperm + stvx_u $out3,$x30,$out + stvx_u $out4,$x40,$out + addi $out,$out,0x50 + bne Lxts_enc6x_steal + b Lxts_enc6x_done + +.align 4 +Lxts_enc6x_four: + vxor $out0,$in2,$twk0 + vxor $out1,$in3,$twk1 + vxor $out2,$in4,$twk2 + vxor $out3,$in5,$twk3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_enc5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk4 # unused tweak + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + vxor $tmp,$out3,$twk4 # last block prep for stealing + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + stvx_u $out3,$x30,$out + addi $out,$out,0x40 + bne Lxts_enc6x_steal + b Lxts_enc6x_done + +.align 4 +Lxts_enc6x_three: + vxor $out0,$in3,$twk0 + vxor $out1,$in4,$twk1 + vxor $out2,$in5,$twk2 + vxor $out3,$out3,$out3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_enc5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk3 # unused tweak + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $tmp,$out2,$twk3 # last block prep for stealing + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + stvx_u $out2,$x20,$out + addi $out,$out,0x30 + bne Lxts_enc6x_steal + b Lxts_enc6x_done + +.align 4 +Lxts_enc6x_two: + vxor $out0,$in4,$twk0 + vxor $out1,$in5,$twk1 + vxor $out2,$out2,$out2 + vxor $out3,$out3,$out3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_enc5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk2 # unused tweak + vxor $tmp,$out1,$twk2 # last block prep for stealing + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + stvx_u $out1,$x10,$out + addi $out,$out,0x20 + bne Lxts_enc6x_steal + b Lxts_enc6x_done + +.align 4 +Lxts_enc6x_one: + vxor $out0,$in5,$twk0 + nop +Loop_xts_enc1x: + vcipher $out0,$out0,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vcipher $out0,$out0,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_xts_enc1x + + add $inp,$inp,$taillen + cmpwi $taillen,0 + vcipher $out0,$out0,v24 + + subi $inp,$inp,16 + vcipher $out0,$out0,v25 + + lvsr $inpperm,0,$taillen + vcipher $out0,$out0,v26 + + lvx_u $in0,0,$inp + vcipher $out0,$out0,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vcipher $out0,$out0,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + + vcipher $out0,$out0,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vxor $twk0,$twk0,v31 + + le?vperm $in0,$in0,$in0,$leperm + vcipher $out0,$out0,v30 + + vperm $in0,$in0,$in0,$inpperm + vcipherlast $out0,$out0,$twk0 + + vmr $twk0,$twk1 # unused tweak + vxor $tmp,$out0,$twk1 # last block prep for stealing + le?vperm $out0,$out0,$out0,$leperm + stvx_u $out0,$x00,$out # store output + addi $out,$out,0x10 + bne Lxts_enc6x_steal + b Lxts_enc6x_done + +.align 4 +Lxts_enc6x_zero: + cmpwi $taillen,0 + beq Lxts_enc6x_done + + add $inp,$inp,$taillen + subi $inp,$inp,16 + lvx_u $in0,0,$inp + lvsr $inpperm,0,$taillen # $in5 is no more + le?vperm $in0,$in0,$in0,$leperm + vperm $in0,$in0,$in0,$inpperm + vxor $tmp,$tmp,$twk0 +Lxts_enc6x_steal: + vxor $in0,$in0,$twk0 + vxor $out0,$out0,$out0 + vspltisb $out1,-1 + vperm $out0,$out0,$out1,$inpperm + vsel $out0,$in0,$tmp,$out0 # $tmp is last block, remember? + + subi r30,$out,17 + subi $out,$out,16 + mtctr $taillen +Loop_xts_enc6x_steal: + lbzu r0,1(r30) + stb r0,16(r30) + bdnz Loop_xts_enc6x_steal + + li $taillen,0 + mtctr $rounds + b Loop_xts_enc1x # one more time... + +.align 4 +Lxts_enc6x_done: + ${UCMP}i $ivp,0 + beq Lxts_enc6x_ret + + vxor $tweak,$twk0,$rndkey0 + le?vperm $tweak,$tweak,$tweak,$leperm + stvx_u $tweak,0,$ivp + +Lxts_enc6x_ret: + mtlr r11 + li r10,`$FRAME+15` + li r11,`$FRAME+31` + stvx $seven,r10,$sp # wipe copies of round keys + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + + mtspr 256,$vrsave + lvx v20,r10,$sp # ABI says so + addi r10,r10,32 + lvx v21,r11,$sp + addi r11,r11,32 + lvx v22,r10,$sp + addi r10,r10,32 + lvx v23,r11,$sp + addi r11,r11,32 + lvx v24,r10,$sp + addi r10,r10,32 + lvx v25,r11,$sp + addi r11,r11,32 + lvx v26,r10,$sp + addi r10,r10,32 + lvx v27,r11,$sp + addi r11,r11,32 + lvx v28,r10,$sp + addi r10,r10,32 + lvx v29,r11,$sp + addi r11,r11,32 + lvx v30,r10,$sp + lvx v31,r11,$sp + $POP r26,`$FRAME+21*16+0*$SIZE_T`($sp) + $POP r27,`$FRAME+21*16+1*$SIZE_T`($sp) + $POP r28,`$FRAME+21*16+2*$SIZE_T`($sp) + $POP r29,`$FRAME+21*16+3*$SIZE_T`($sp) + $POP r30,`$FRAME+21*16+4*$SIZE_T`($sp) + $POP r31,`$FRAME+21*16+5*$SIZE_T`($sp) + addi $sp,$sp,`$FRAME+21*16+6*$SIZE_T` + blr + .long 0 + .byte 0,12,0x04,1,0x80,6,6,0 + .long 0 + +.align 5 +_aesp8_xts_enc5x: + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vcipher $out4,$out4,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vcipher $out4,$out4,v25 + lvx v25,$x10,$key_ # round[4] + bdnz _aesp8_xts_enc5x + + add $inp,$inp,$taillen + cmpwi $taillen,0 + vcipher $out0,$out0,v24 + vcipher $out1,$out1,v24 + vcipher $out2,$out2,v24 + vcipher $out3,$out3,v24 + vcipher $out4,$out4,v24 + + subi $inp,$inp,16 + vcipher $out0,$out0,v25 + vcipher $out1,$out1,v25 + vcipher $out2,$out2,v25 + vcipher $out3,$out3,v25 + vcipher $out4,$out4,v25 + vxor $twk0,$twk0,v31 + + vcipher $out0,$out0,v26 + lvsr $inpperm,r0,$taillen # $in5 is no more + vcipher $out1,$out1,v26 + vcipher $out2,$out2,v26 + vcipher $out3,$out3,v26 + vcipher $out4,$out4,v26 + vxor $in1,$twk1,v31 + + vcipher $out0,$out0,v27 + lvx_u $in0,0,$inp + vcipher $out1,$out1,v27 + vcipher $out2,$out2,v27 + vcipher $out3,$out3,v27 + vcipher $out4,$out4,v27 + vxor $in2,$twk2,v31 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vcipher $out0,$out0,v28 + vcipher $out1,$out1,v28 + vcipher $out2,$out2,v28 + vcipher $out3,$out3,v28 + vcipher $out4,$out4,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + vxor $in3,$twk3,v31 + + vcipher $out0,$out0,v29 + le?vperm $in0,$in0,$in0,$leperm + vcipher $out1,$out1,v29 + vcipher $out2,$out2,v29 + vcipher $out3,$out3,v29 + vcipher $out4,$out4,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vxor $in4,$twk4,v31 + + vcipher $out0,$out0,v30 + vperm $in0,$in0,$in0,$inpperm + vcipher $out1,$out1,v30 + vcipher $out2,$out2,v30 + vcipher $out3,$out3,v30 + vcipher $out4,$out4,v30 + + vcipherlast $out0,$out0,$twk0 + vcipherlast $out1,$out1,$in1 + vcipherlast $out2,$out2,$in2 + vcipherlast $out3,$out3,$in3 + vcipherlast $out4,$out4,$in4 + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 + +.align 5 +_aesp8_xts_decrypt6x: + $STU $sp,-`($FRAME+21*16+6*$SIZE_T)`($sp) + mflr r11 + li r7,`$FRAME+8*16+15` + li r3,`$FRAME+8*16+31` + $PUSH r11,`$FRAME+21*16+6*$SIZE_T+$LRSAVE`($sp) + stvx v20,r7,$sp # ABI says so + addi r7,r7,32 + stvx v21,r3,$sp + addi r3,r3,32 + stvx v22,r7,$sp + addi r7,r7,32 + stvx v23,r3,$sp + addi r3,r3,32 + stvx v24,r7,$sp + addi r7,r7,32 + stvx v25,r3,$sp + addi r3,r3,32 + stvx v26,r7,$sp + addi r7,r7,32 + stvx v27,r3,$sp + addi r3,r3,32 + stvx v28,r7,$sp + addi r7,r7,32 + stvx v29,r3,$sp + addi r3,r3,32 + stvx v30,r7,$sp + stvx v31,r3,$sp + li r0,-1 + stw $vrsave,`$FRAME+21*16-4`($sp) # save vrsave + li $x10,0x10 + $PUSH r26,`$FRAME+21*16+0*$SIZE_T`($sp) + li $x20,0x20 + $PUSH r27,`$FRAME+21*16+1*$SIZE_T`($sp) + li $x30,0x30 + $PUSH r28,`$FRAME+21*16+2*$SIZE_T`($sp) + li $x40,0x40 + $PUSH r29,`$FRAME+21*16+3*$SIZE_T`($sp) + li $x50,0x50 + $PUSH r30,`$FRAME+21*16+4*$SIZE_T`($sp) + li $x60,0x60 + $PUSH r31,`$FRAME+21*16+5*$SIZE_T`($sp) + li $x70,0x70 + mtspr 256,r0 + + subi $rounds,$rounds,3 # -4 in total + + lvx $rndkey0,$x00,$key1 # load key schedule + lvx v30,$x10,$key1 + addi $key1,$key1,0x20 + lvx v31,$x00,$key1 + ?vperm $rndkey0,$rndkey0,v30,$keyperm + addi $key_,$sp,$FRAME+15 + mtctr $rounds + +Load_xts_dec_key: + ?vperm v24,v30,v31,$keyperm + lvx v30,$x10,$key1 + addi $key1,$key1,0x20 + stvx v24,$x00,$key_ # off-load round[1] + ?vperm v25,v31,v30,$keyperm + lvx v31,$x00,$key1 + stvx v25,$x10,$key_ # off-load round[2] + addi $key_,$key_,0x20 + bdnz Load_xts_dec_key + + lvx v26,$x10,$key1 + ?vperm v24,v30,v31,$keyperm + lvx v27,$x20,$key1 + stvx v24,$x00,$key_ # off-load round[3] + ?vperm v25,v31,v26,$keyperm + lvx v28,$x30,$key1 + stvx v25,$x10,$key_ # off-load round[4] + addi $key_,$sp,$FRAME+15 # rewind $key_ + ?vperm v26,v26,v27,$keyperm + lvx v29,$x40,$key1 + ?vperm v27,v27,v28,$keyperm + lvx v30,$x50,$key1 + ?vperm v28,v28,v29,$keyperm + lvx v31,$x60,$key1 + ?vperm v29,v29,v30,$keyperm + lvx $twk5,$x70,$key1 # borrow $twk5 + ?vperm v30,v30,v31,$keyperm + lvx v24,$x00,$key_ # pre-load round[1] + ?vperm v31,v31,$twk5,$keyperm + lvx v25,$x10,$key_ # pre-load round[2] + + vperm $in0,$inout,$inptail,$inpperm + subi $inp,$inp,31 # undo "caller" + vxor $twk0,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vand $tmp,$tmp,$eighty7 + vxor $out0,$in0,$twk0 + vxor $tweak,$tweak,$tmp + + lvx_u $in1,$x10,$inp + vxor $twk1,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in1,$in1,$in1,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out1,$in1,$twk1 + vxor $tweak,$tweak,$tmp + + lvx_u $in2,$x20,$inp + andi. $taillen,$len,15 + vxor $twk2,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in2,$in2,$in2,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out2,$in2,$twk2 + vxor $tweak,$tweak,$tmp + + lvx_u $in3,$x30,$inp + sub $len,$len,$taillen + vxor $twk3,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in3,$in3,$in3,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out3,$in3,$twk3 + vxor $tweak,$tweak,$tmp + + lvx_u $in4,$x40,$inp + subi $len,$len,0x60 + vxor $twk4,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in4,$in4,$in4,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out4,$in4,$twk4 + vxor $tweak,$tweak,$tmp + + lvx_u $in5,$x50,$inp + addi $inp,$inp,0x60 + vxor $twk5,$tweak,$rndkey0 + vsrab $tmp,$tweak,$seven # next tweak value + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + le?vperm $in5,$in5,$in5,$leperm + vand $tmp,$tmp,$eighty7 + vxor $out5,$in5,$twk5 + vxor $tweak,$tweak,$tmp + + vxor v31,v31,$rndkey0 + mtctr $rounds + b Loop_xts_dec6x + +.align 5 +Loop_xts_dec6x: + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_xts_dec6x + + subic $len,$len,96 # $len-=96 + vxor $in0,$twk0,v31 # xor with last round key + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk0,$tweak,$rndkey0 + vaddubm $tweak,$tweak,$tweak + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vsldoi $tmp,$tmp,$tmp,15 + vncipher $out4,$out4,v24 + vncipher $out5,$out5,v24 + + subfe. r0,r0,r0 # borrow?-1:0 + vand $tmp,$tmp,$eighty7 + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vxor $tweak,$tweak,$tmp + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vxor $in1,$twk1,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk1,$tweak,$rndkey0 + vncipher $out4,$out4,v25 + vncipher $out5,$out5,v25 + + and r0,r0,$len + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vncipher $out0,$out0,v26 + vncipher $out1,$out1,v26 + vand $tmp,$tmp,$eighty7 + vncipher $out2,$out2,v26 + vncipher $out3,$out3,v26 + vxor $tweak,$tweak,$tmp + vncipher $out4,$out4,v26 + vncipher $out5,$out5,v26 + + add $inp,$inp,r0 # $inp is adjusted in such + # way that at exit from the + # loop inX-in5 are loaded + # with last "words" + vxor $in2,$twk2,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk2,$tweak,$rndkey0 + vaddubm $tweak,$tweak,$tweak + vncipher $out0,$out0,v27 + vncipher $out1,$out1,v27 + vsldoi $tmp,$tmp,$tmp,15 + vncipher $out2,$out2,v27 + vncipher $out3,$out3,v27 + vand $tmp,$tmp,$eighty7 + vncipher $out4,$out4,v27 + vncipher $out5,$out5,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vxor $tweak,$tweak,$tmp + vncipher $out0,$out0,v28 + vncipher $out1,$out1,v28 + vxor $in3,$twk3,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk3,$tweak,$rndkey0 + vncipher $out2,$out2,v28 + vncipher $out3,$out3,v28 + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vncipher $out4,$out4,v28 + vncipher $out5,$out5,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + vand $tmp,$tmp,$eighty7 + + vncipher $out0,$out0,v29 + vncipher $out1,$out1,v29 + vxor $tweak,$tweak,$tmp + vncipher $out2,$out2,v29 + vncipher $out3,$out3,v29 + vxor $in4,$twk4,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk4,$tweak,$rndkey0 + vncipher $out4,$out4,v29 + vncipher $out5,$out5,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + + vncipher $out0,$out0,v30 + vncipher $out1,$out1,v30 + vand $tmp,$tmp,$eighty7 + vncipher $out2,$out2,v30 + vncipher $out3,$out3,v30 + vxor $tweak,$tweak,$tmp + vncipher $out4,$out4,v30 + vncipher $out5,$out5,v30 + vxor $in5,$twk5,v31 + vsrab $tmp,$tweak,$seven # next tweak value + vxor $twk5,$tweak,$rndkey0 + + vncipherlast $out0,$out0,$in0 + lvx_u $in0,$x00,$inp # load next input block + vaddubm $tweak,$tweak,$tweak + vsldoi $tmp,$tmp,$tmp,15 + vncipherlast $out1,$out1,$in1 + lvx_u $in1,$x10,$inp + vncipherlast $out2,$out2,$in2 + le?vperm $in0,$in0,$in0,$leperm + lvx_u $in2,$x20,$inp + vand $tmp,$tmp,$eighty7 + vncipherlast $out3,$out3,$in3 + le?vperm $in1,$in1,$in1,$leperm + lvx_u $in3,$x30,$inp + vncipherlast $out4,$out4,$in4 + le?vperm $in2,$in2,$in2,$leperm + lvx_u $in4,$x40,$inp + vxor $tweak,$tweak,$tmp + vncipherlast $out5,$out5,$in5 + le?vperm $in3,$in3,$in3,$leperm + lvx_u $in5,$x50,$inp + addi $inp,$inp,0x60 + le?vperm $in4,$in4,$in4,$leperm + le?vperm $in5,$in5,$in5,$leperm + + le?vperm $out0,$out0,$out0,$leperm + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk0 + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + vxor $out1,$in1,$twk1 + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + vxor $out2,$in2,$twk2 + le?vperm $out4,$out4,$out4,$leperm + stvx_u $out3,$x30,$out + vxor $out3,$in3,$twk3 + le?vperm $out5,$out5,$out5,$leperm + stvx_u $out4,$x40,$out + vxor $out4,$in4,$twk4 + stvx_u $out5,$x50,$out + vxor $out5,$in5,$twk5 + addi $out,$out,0x60 + + mtctr $rounds + beq Loop_xts_dec6x # did $len-=96 borrow? + + addic. $len,$len,0x60 + beq Lxts_dec6x_zero + cmpwi $len,0x20 + blt Lxts_dec6x_one + nop + beq Lxts_dec6x_two + cmpwi $len,0x40 + blt Lxts_dec6x_three + nop + beq Lxts_dec6x_four + +Lxts_dec6x_five: + vxor $out0,$in1,$twk0 + vxor $out1,$in2,$twk1 + vxor $out2,$in3,$twk2 + vxor $out3,$in4,$twk3 + vxor $out4,$in5,$twk4 + + bl _aesp8_xts_dec5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk5 # unused tweak + vxor $twk1,$tweak,$rndkey0 + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk1 + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + le?vperm $out4,$out4,$out4,$leperm + stvx_u $out3,$x30,$out + stvx_u $out4,$x40,$out + addi $out,$out,0x50 + bne Lxts_dec6x_steal + b Lxts_dec6x_done + +.align 4 +Lxts_dec6x_four: + vxor $out0,$in2,$twk0 + vxor $out1,$in3,$twk1 + vxor $out2,$in4,$twk2 + vxor $out3,$in5,$twk3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_dec5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk4 # unused tweak + vmr $twk1,$twk5 + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk5 + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + le?vperm $out3,$out3,$out3,$leperm + stvx_u $out2,$x20,$out + stvx_u $out3,$x30,$out + addi $out,$out,0x40 + bne Lxts_dec6x_steal + b Lxts_dec6x_done + +.align 4 +Lxts_dec6x_three: + vxor $out0,$in3,$twk0 + vxor $out1,$in4,$twk1 + vxor $out2,$in5,$twk2 + vxor $out3,$out3,$out3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_dec5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk3 # unused tweak + vmr $twk1,$twk4 + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk4 + le?vperm $out2,$out2,$out2,$leperm + stvx_u $out1,$x10,$out + stvx_u $out2,$x20,$out + addi $out,$out,0x30 + bne Lxts_dec6x_steal + b Lxts_dec6x_done + +.align 4 +Lxts_dec6x_two: + vxor $out0,$in4,$twk0 + vxor $out1,$in5,$twk1 + vxor $out2,$out2,$out2 + vxor $out3,$out3,$out3 + vxor $out4,$out4,$out4 + + bl _aesp8_xts_dec5x + + le?vperm $out0,$out0,$out0,$leperm + vmr $twk0,$twk2 # unused tweak + vmr $twk1,$twk3 + le?vperm $out1,$out1,$out1,$leperm + stvx_u $out0,$x00,$out # store output + vxor $out0,$in0,$twk3 + stvx_u $out1,$x10,$out + addi $out,$out,0x20 + bne Lxts_dec6x_steal + b Lxts_dec6x_done + +.align 4 +Lxts_dec6x_one: + vxor $out0,$in5,$twk0 + nop +Loop_xts_dec1x: + vncipher $out0,$out0,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out0,$out0,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Loop_xts_dec1x + + subi r0,$taillen,1 + vncipher $out0,$out0,v24 + + andi. r0,r0,16 + cmpwi $taillen,0 + vncipher $out0,$out0,v25 + + sub $inp,$inp,r0 + vncipher $out0,$out0,v26 + + lvx_u $in0,0,$inp + vncipher $out0,$out0,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vncipher $out0,$out0,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + + vncipher $out0,$out0,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vxor $twk0,$twk0,v31 + + le?vperm $in0,$in0,$in0,$leperm + vncipher $out0,$out0,v30 + + mtctr $rounds + vncipherlast $out0,$out0,$twk0 + + vmr $twk0,$twk1 # unused tweak + vmr $twk1,$twk2 + le?vperm $out0,$out0,$out0,$leperm + stvx_u $out0,$x00,$out # store output + addi $out,$out,0x10 + vxor $out0,$in0,$twk2 + bne Lxts_dec6x_steal + b Lxts_dec6x_done + +.align 4 +Lxts_dec6x_zero: + cmpwi $taillen,0 + beq Lxts_dec6x_done + + lvx_u $in0,0,$inp + le?vperm $in0,$in0,$in0,$leperm + vxor $out0,$in0,$twk1 +Lxts_dec6x_steal: + vncipher $out0,$out0,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out0,$out0,v25 + lvx v25,$x10,$key_ # round[4] + bdnz Lxts_dec6x_steal + + add $inp,$inp,$taillen + vncipher $out0,$out0,v24 + + cmpwi $taillen,0 + vncipher $out0,$out0,v25 + + lvx_u $in0,0,$inp + vncipher $out0,$out0,v26 + + lvsr $inpperm,0,$taillen # $in5 is no more + vncipher $out0,$out0,v27 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vncipher $out0,$out0,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + + vncipher $out0,$out0,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vxor $twk1,$twk1,v31 + + le?vperm $in0,$in0,$in0,$leperm + vncipher $out0,$out0,v30 + + vperm $in0,$in0,$in0,$inpperm + vncipherlast $tmp,$out0,$twk1 + + le?vperm $out0,$tmp,$tmp,$leperm + le?stvx_u $out0,0,$out + be?stvx_u $tmp,0,$out + + vxor $out0,$out0,$out0 + vspltisb $out1,-1 + vperm $out0,$out0,$out1,$inpperm + vsel $out0,$in0,$tmp,$out0 + vxor $out0,$out0,$twk0 + + subi r30,$out,1 + mtctr $taillen +Loop_xts_dec6x_steal: + lbzu r0,1(r30) + stb r0,16(r30) + bdnz Loop_xts_dec6x_steal + + li $taillen,0 + mtctr $rounds + b Loop_xts_dec1x # one more time... + +.align 4 +Lxts_dec6x_done: + ${UCMP}i $ivp,0 + beq Lxts_dec6x_ret + + vxor $tweak,$twk0,$rndkey0 + le?vperm $tweak,$tweak,$tweak,$leperm + stvx_u $tweak,0,$ivp + +Lxts_dec6x_ret: + mtlr r11 + li r10,`$FRAME+15` + li r11,`$FRAME+31` + stvx $seven,r10,$sp # wipe copies of round keys + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + stvx $seven,r10,$sp + addi r10,r10,32 + stvx $seven,r11,$sp + addi r11,r11,32 + + mtspr 256,$vrsave + lvx v20,r10,$sp # ABI says so + addi r10,r10,32 + lvx v21,r11,$sp + addi r11,r11,32 + lvx v22,r10,$sp + addi r10,r10,32 + lvx v23,r11,$sp + addi r11,r11,32 + lvx v24,r10,$sp + addi r10,r10,32 + lvx v25,r11,$sp + addi r11,r11,32 + lvx v26,r10,$sp + addi r10,r10,32 + lvx v27,r11,$sp + addi r11,r11,32 + lvx v28,r10,$sp + addi r10,r10,32 + lvx v29,r11,$sp + addi r11,r11,32 + lvx v30,r10,$sp + lvx v31,r11,$sp + $POP r26,`$FRAME+21*16+0*$SIZE_T`($sp) + $POP r27,`$FRAME+21*16+1*$SIZE_T`($sp) + $POP r28,`$FRAME+21*16+2*$SIZE_T`($sp) + $POP r29,`$FRAME+21*16+3*$SIZE_T`($sp) + $POP r30,`$FRAME+21*16+4*$SIZE_T`($sp) + $POP r31,`$FRAME+21*16+5*$SIZE_T`($sp) + addi $sp,$sp,`$FRAME+21*16+6*$SIZE_T` + blr + .long 0 + .byte 0,12,0x04,1,0x80,6,6,0 + .long 0 + +.align 5 +_aesp8_xts_dec5x: + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + lvx v24,$x20,$key_ # round[3] + addi $key_,$key_,0x20 + + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + lvx v25,$x10,$key_ # round[4] + bdnz _aesp8_xts_dec5x + + subi r0,$taillen,1 + vncipher $out0,$out0,v24 + vncipher $out1,$out1,v24 + vncipher $out2,$out2,v24 + vncipher $out3,$out3,v24 + vncipher $out4,$out4,v24 + + andi. r0,r0,16 + cmpwi $taillen,0 + vncipher $out0,$out0,v25 + vncipher $out1,$out1,v25 + vncipher $out2,$out2,v25 + vncipher $out3,$out3,v25 + vncipher $out4,$out4,v25 + vxor $twk0,$twk0,v31 + + sub $inp,$inp,r0 + vncipher $out0,$out0,v26 + vncipher $out1,$out1,v26 + vncipher $out2,$out2,v26 + vncipher $out3,$out3,v26 + vncipher $out4,$out4,v26 + vxor $in1,$twk1,v31 + + vncipher $out0,$out0,v27 + lvx_u $in0,0,$inp + vncipher $out1,$out1,v27 + vncipher $out2,$out2,v27 + vncipher $out3,$out3,v27 + vncipher $out4,$out4,v27 + vxor $in2,$twk2,v31 + + addi $key_,$sp,$FRAME+15 # rewind $key_ + vncipher $out0,$out0,v28 + vncipher $out1,$out1,v28 + vncipher $out2,$out2,v28 + vncipher $out3,$out3,v28 + vncipher $out4,$out4,v28 + lvx v24,$x00,$key_ # re-pre-load round[1] + vxor $in3,$twk3,v31 + + vncipher $out0,$out0,v29 + le?vperm $in0,$in0,$in0,$leperm + vncipher $out1,$out1,v29 + vncipher $out2,$out2,v29 + vncipher $out3,$out3,v29 + vncipher $out4,$out4,v29 + lvx v25,$x10,$key_ # re-pre-load round[2] + vxor $in4,$twk4,v31 + + vncipher $out0,$out0,v30 + vncipher $out1,$out1,v30 + vncipher $out2,$out2,v30 + vncipher $out3,$out3,v30 + vncipher $out4,$out4,v30 + + vncipherlast $out0,$out0,$twk0 + vncipherlast $out1,$out1,$in1 + vncipherlast $out2,$out2,$in2 + vncipherlast $out3,$out3,$in3 + vncipherlast $out4,$out4,$in4 + mtctr $rounds + blr + .long 0 + .byte 0,12,0x14,0,0,0,0,0 +___ +}} }}} + +my $consts=1; +foreach(split("\n",$code)) { + s/\`([^\`]*)\`/eval($1)/geo; + + # constants table endian-specific conversion + if ($consts && m/\.(long|byte)\s+(.+)\s+(\?[a-z]*)$/o) { + my $conv=$3; + my @bytes=(); + + # convert to endian-agnostic format + if ($1 eq "long") { + foreach (split(/,\s*/,$2)) { + my $l = /^0/?oct:int; + push @bytes,($l>>24)&0xff,($l>>16)&0xff,($l>>8)&0xff,$l&0xff; + } + } else { + @bytes = map(/^0/?oct:int,split(/,\s*/,$2)); + } + + # little-endian conversion + if ($flavour =~ /le$/o) { + SWITCH: for($conv) { + /\?inv/ && do { @bytes=map($_^0xf,@bytes); last; }; + /\?rev/ && do { @bytes=reverse(@bytes); last; }; + } + } + + #emit + print ".byte\t",join(',',map (sprintf("0x%02x",$_),@bytes)),"\n"; + next; + } + $consts=0 if (m/Lconsts:/o); # end of table + + # instructions prefixed with '?' are endian-specific and need + # to be adjusted accordingly... + if ($flavour =~ /le$/o) { # little-endian + s/le\?//o or + s/be\?/#be#/o or + s/\?lvsr/lvsl/o or + s/\?lvsl/lvsr/o or + s/\?(vperm\s+v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+)/$1$3$2$4/o or + s/\?(vsldoi\s+v[0-9]+,\s*)(v[0-9]+,)\s*(v[0-9]+,\s*)([0-9]+)/$1$3$2 16-$4/o or + s/\?(vspltw\s+v[0-9]+,\s*)(v[0-9]+,)\s*([0-9])/$1$2 3-$3/o; + } else { # big-endian + s/le\?/#le#/o or + s/be\?//o or + s/\?([a-z]+)/$1/o; + } + + print $_,"\n"; +} + +close STDOUT; diff --git a/crypto/aes/asm/aesv8-armx.pl b/crypto/aes/asm/aesv8-armx.pl index a1804265..f6d0dabd 100644 --- a/crypto/aes/asm/aesv8-armx.pl +++ b/crypto/aes/asm/aesv8-armx.pl @@ -42,7 +42,7 @@ die "can't locate arm-xlate.pl"; open OUT,"| \"$^X\" $xlate $flavour $output"; *STDOUT=*OUT; -$prefix="aes_v8"; +$prefix="aes_hw"; $code=<<___; #include <openssl/arm_arch.h> diff --git a/crypto/cipher/e_aes.c b/crypto/cipher/e_aes.c index 6e9ea9f5..963aecc7 100644 --- a/crypto/cipher/e_aes.c +++ b/crypto/cipher/e_aes.c @@ -125,18 +125,15 @@ static int hwaes_capable(void) { return CRYPTO_is_ARMv8_AES_capable(); } -int aes_v8_set_encrypt_key(const uint8_t *user_key, const int bits, - AES_KEY *key); -int aes_v8_set_decrypt_key(const uint8_t *user_key, const int bits, - AES_KEY *key); -void aes_v8_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); -void aes_v8_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); -void aes_v8_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length, - const AES_KEY *key, uint8_t *ivec, const int enc); -void aes_v8_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len, - const AES_KEY *key, const uint8_t ivec[16]); +#elif !defined(OPENSSL_NO_ASM) && defined(OPENSSL_PPC64LE) + +#define HWAES +static int hwaes_capable(void) { + return CRYPTO_is_PPC64LE_vcrypto_capable(); +} + +#endif /* OPENSSL_PPC64LE */ -#endif /* OPENSSL_ARM */ #if defined(BSAES) /* On platforms where BSAES gets defined (just above), then these functions are @@ -202,39 +199,50 @@ static void vpaes_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length, } #endif -#if !defined(HWAES) +#if defined(HWAES) +int aes_hw_set_encrypt_key(const uint8_t *user_key, const int bits, + AES_KEY *key); +int aes_hw_set_decrypt_key(const uint8_t *user_key, const int bits, + AES_KEY *key); +void aes_hw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); +void aes_hw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key); +void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length, + const AES_KEY *key, uint8_t *ivec, const int enc); +void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len, + const AES_KEY *key, const uint8_t ivec[16]); +#else /* If HWAES isn't defined then we provide dummy functions for each of the hwaes * functions. */ static int hwaes_capable(void) { return 0; } -static int aes_v8_set_encrypt_key(const uint8_t *user_key, int bits, +static int aes_hw_set_encrypt_key(const uint8_t *user_key, int bits, AES_KEY *key) { abort(); } -static int aes_v8_set_decrypt_key(const uint8_t *user_key, int bits, +static int aes_hw_set_decrypt_key(const uint8_t *user_key, int bits, AES_KEY *key) { abort(); } -static void aes_v8_encrypt(const uint8_t *in, uint8_t *out, +static void aes_hw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { abort(); } -static void aes_v8_decrypt(const uint8_t *in, uint8_t *out, +static void aes_hw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key) { abort(); } -static void aes_v8_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length, +static void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length, const AES_KEY *key, uint8_t *ivec, int enc) { abort(); } -static void aes_v8_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, +static void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len, const AES_KEY *key, const uint8_t ivec[16]) { abort(); @@ -281,11 +289,11 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, mode = ctx->cipher->flags & EVP_CIPH_MODE_MASK; if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) && !enc) { if (hwaes_capable()) { - ret = aes_v8_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); - dat->block = (block128_f)aes_v8_decrypt; + ret = aes_hw_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + dat->block = (block128_f)aes_hw_decrypt; dat->stream.cbc = NULL; if (mode == EVP_CIPH_CBC_MODE) { - dat->stream.cbc = (cbc128_f)aes_v8_cbc_encrypt; + dat->stream.cbc = (cbc128_f)aes_hw_cbc_encrypt; } } else if (bsaes_capable() && mode == EVP_CIPH_CBC_MODE) { ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); @@ -303,13 +311,13 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const uint8_t *key, mode == EVP_CIPH_CBC_MODE ? (cbc128_f)AES_cbc_encrypt : NULL; } } else if (hwaes_capable()) { - ret = aes_v8_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); - dat->block = (block128_f)aes_v8_encrypt; + ret = aes_hw_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + dat->block = (block128_f)aes_hw_encrypt; dat->stream.cbc = NULL; if (mode == EVP_CIPH_CBC_MODE) { - dat->stream.cbc = (cbc128_f)aes_v8_cbc_encrypt; + dat->stream.cbc = (cbc128_f)aes_hw_cbc_encrypt; } else if (mode == EVP_CIPH_CTR_MODE) { - dat->stream.ctr = (ctr128_f)aes_v8_ctr32_encrypt_blocks; + dat->stream.ctr = (ctr128_f)aes_hw_ctr32_encrypt_blocks; } } else if (bsaes_capable() && mode == EVP_CIPH_CTR_MODE) { ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); @@ -406,14 +414,14 @@ static ctr128_f aes_ctr_set_key(AES_KEY *aes_key, GCM128_CONTEXT *gcm_ctx, } if (hwaes_capable()) { - aes_v8_set_encrypt_key(key, key_len * 8, aes_key); + aes_hw_set_encrypt_key(key, key_len * 8, aes_key); if (gcm_ctx != NULL) { - CRYPTO_gcm128_init(gcm_ctx, aes_key, (block128_f)aes_v8_encrypt); + CRYPTO_gcm128_init(gcm_ctx, aes_key, (block128_f)aes_hw_encrypt); } if (out_block) { - *out_block = (block128_f) aes_v8_encrypt; + *out_block = (block128_f) aes_hw_encrypt; } - return (ctr128_f)aes_v8_ctr32_encrypt_blocks; + return (ctr128_f)aes_hw_ctr32_encrypt_blocks; } if (bsaes_capable()) { diff --git a/crypto/cpu-ppc64le.c b/crypto/cpu-ppc64le.c new file mode 100644 index 00000000..c431c818 --- /dev/null +++ b/crypto/cpu-ppc64le.c @@ -0,0 +1,40 @@ +/* Copyright (c) 2016, Google Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ + +#include <openssl/cpu.h> + +#if defined(OPENSSL_PPC64LE) + +#include <sys/auxv.h> + +#include "internal.h" + + +#if !defined(PPC_FEATURE2_HAS_VCRYPTO) +/* PPC_FEATURE2_HAS_VCRYPTO was taken from section 4.1.2.3 of the “OpenPOWER + * ABI for Linux Supplement”. */ +#define PPC_FEATURE2_HAS_VCRYPTO 0x02000000 +#endif + +static unsigned long g_ppc64le_hwcap2 = 0; + +void OPENSSL_cpuid_setup(void) { + g_ppc64le_hwcap2 = getauxval(AT_HWCAP2); +} + +int CRYPTO_is_PPC64LE_vcrypto_capable(void) { + return (g_ppc64le_hwcap2 & PPC_FEATURE2_HAS_VCRYPTO) != 0; +} + +#endif /* OPENSSL_PPC64LE */ diff --git a/crypto/crypto.c b/crypto/crypto.c index 24431267..c32f5144 100644 --- a/crypto/crypto.c +++ b/crypto/crypto.c @@ -21,9 +21,11 @@ #if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_STATIC_ARMCAP) && \ (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \ - defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) -/* x86, x86_64 and the ARMs need to record the result of a cpuid call for the - * asm to work correctly, unless compiled without asm code. */ + defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64) || \ + defined(OPENSSL_PPC64LE)) +/* x86, x86_64, the ARMs and ppc64le need to record the result of a + * cpuid/getauxval call for the asm to work correctly, unless compiled without + * asm code. */ #define NEED_CPUID #else diff --git a/crypto/internal.h b/crypto/internal.h index 8ac60cbd..896cc3ba 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -141,8 +141,8 @@ extern "C" { #if defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || defined(OPENSSL_ARM) || \ - defined(OPENSSL_AARCH64) -/* OPENSSL_cpuid_setup initializes OPENSSL_ia32cap_P. */ + defined(OPENSSL_AARCH64) || defined(OPENSSL_PPC64LE) +/* OPENSSL_cpuid_setup initializes the platform-specific feature cache. */ void OPENSSL_cpuid_setup(void); #endif diff --git a/crypto/modes/CMakeLists.txt b/crypto/modes/CMakeLists.txt index e8aa2725..17faa155 100644 --- a/crypto/modes/CMakeLists.txt +++ b/crypto/modes/CMakeLists.txt @@ -34,6 +34,14 @@ if (${ARCH} STREQUAL "aarch64") ) endif() +if (${ARCH} STREQUAL "ppc64le") + set( + MODES_ARCH_SOURCES + + ghashp8-ppc.${ASM_EXT} + ) +endif() + add_library( modes @@ -53,6 +61,7 @@ perlasm(ghash-x86_64.${ASM_EXT} asm/ghash-x86_64.pl) perlasm(ghash-x86.${ASM_EXT} asm/ghash-x86.pl) perlasm(ghash-armv4.${ASM_EXT} asm/ghash-armv4.pl) perlasm(ghashv8-armx.${ASM_EXT} asm/ghashv8-armx.pl) +perlasm(ghashp8-ppc.${ASM_EXT} asm/ghashp8-ppc.pl) add_executable( gcm_test diff --git a/crypto/modes/asm/ghashp8-ppc.pl b/crypto/modes/asm/ghashp8-ppc.pl new file mode 100644 index 00000000..f0598cb2 --- /dev/null +++ b/crypto/modes/asm/ghashp8-ppc.pl @@ -0,0 +1,670 @@ +#! /usr/bin/env perl +# Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + +# +# ==================================================================== +# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL +# project. The module is, however, dual licensed under OpenSSL and +# CRYPTOGAMS licenses depending on where you obtain it. For further +# details see http://www.openssl.org/~appro/cryptogams/. +# ==================================================================== +# +# GHASH for for PowerISA v2.07. +# +# July 2014 +# +# Accurate performance measurements are problematic, because it's +# always virtualized setup with possibly throttled processor. +# Relative comparison is therefore more informative. This initial +# version is ~2.1x slower than hardware-assisted AES-128-CTR, ~12x +# faster than "4-bit" integer-only compiler-generated 64-bit code. +# "Initial version" means that there is room for futher improvement. + +# May 2016 +# +# 2x aggregated reduction improves performance by 50% (resulting +# performance on POWER8 is 1 cycle per processed byte), and 4x +# aggregated reduction - by 170% or 2.7x (resulting in 0.55 cpb). + +$flavour=shift; +$output =shift; + +if ($flavour =~ /64/) { + $SIZE_T=8; + $LRSAVE=2*$SIZE_T; + $STU="stdu"; + $POP="ld"; + $PUSH="std"; + $UCMP="cmpld"; + $SHRI="srdi"; +} elsif ($flavour =~ /32/) { + $SIZE_T=4; + $LRSAVE=$SIZE_T; + $STU="stwu"; + $POP="lwz"; + $PUSH="stw"; + $UCMP="cmplw"; + $SHRI="srwi"; +} else { die "nonsense $flavour"; } + +$sp="r1"; +$FRAME=6*$SIZE_T+13*16; # 13*16 is for v20-v31 offload + +$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; +( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or +( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or +die "can't locate ppc-xlate.pl"; + +open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!"; + +my ($Xip,$Htbl,$inp,$len)=map("r$_",(3..6)); # argument block + +my ($Xl,$Xm,$Xh,$IN)=map("v$_",(0..3)); +my ($zero,$t0,$t1,$t2,$xC2,$H,$Hh,$Hl,$lemask)=map("v$_",(4..12)); +my ($Xl1,$Xm1,$Xh1,$IN1,$H2,$H2h,$H2l)=map("v$_",(13..19)); +my $vrsave="r12"; + +$code=<<___; +.machine "any" + +.text + +.globl .gcm_init_p8 +.align 5 +.gcm_init_p8: + li r0,-4096 + li r8,0x10 + mfspr $vrsave,256 + li r9,0x20 + mtspr 256,r0 + li r10,0x30 + lvx_u $H,0,r4 # load H + + vspltisb $xC2,-16 # 0xf0 + vspltisb $t0,1 # one + vaddubm $xC2,$xC2,$xC2 # 0xe0 + vxor $zero,$zero,$zero + vor $xC2,$xC2,$t0 # 0xe1 + vsldoi $xC2,$xC2,$zero,15 # 0xe1... + vsldoi $t1,$zero,$t0,1 # ...1 + vaddubm $xC2,$xC2,$xC2 # 0xc2... + vspltisb $t2,7 + vor $xC2,$xC2,$t1 # 0xc2....01 + vspltb $t1,$H,0 # most significant byte + vsl $H,$H,$t0 # H<<=1 + vsrab $t1,$t1,$t2 # broadcast carry bit + vand $t1,$t1,$xC2 + vxor $IN,$H,$t1 # twisted H + + vsldoi $H,$IN,$IN,8 # twist even more ... + vsldoi $xC2,$zero,$xC2,8 # 0xc2.0 + vsldoi $Hl,$zero,$H,8 # ... and split + vsldoi $Hh,$H,$zero,8 + + stvx_u $xC2,0,r3 # save pre-computed table + stvx_u $Hl,r8,r3 + li r8,0x40 + stvx_u $H, r9,r3 + li r9,0x50 + stvx_u $Hh,r10,r3 + li r10,0x60 + + vpmsumd $Xl,$IN,$Hl # H.lo·H.lo + vpmsumd $Xm,$IN,$H # H.hi·H.lo+H.lo·H.hi + vpmsumd $Xh,$IN,$Hh # H.hi·H.hi + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + vxor $t1,$t1,$Xh + vxor $IN1,$Xl,$t1 + + vsldoi $H2,$IN1,$IN1,8 + vsldoi $H2l,$zero,$H2,8 + vsldoi $H2h,$H2,$zero,8 + + stvx_u $H2l,r8,r3 # save H^2 + li r8,0x70 + stvx_u $H2,r9,r3 + li r9,0x80 + stvx_u $H2h,r10,r3 + li r10,0x90 +___ +{ +my ($t4,$t5,$t6) = ($Hl,$H,$Hh); +$code.=<<___; + vpmsumd $Xl,$IN,$H2l # H.lo·H^2.lo + vpmsumd $Xl1,$IN1,$H2l # H^2.lo·H^2.lo + vpmsumd $Xm,$IN,$H2 # H.hi·H^2.lo+H.lo·H^2.hi + vpmsumd $Xm1,$IN1,$H2 # H^2.hi·H^2.lo+H^2.lo·H^2.hi + vpmsumd $Xh,$IN,$H2h # H.hi·H^2.hi + vpmsumd $Xh1,$IN1,$H2h # H^2.hi·H^2.hi + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + vpmsumd $t6,$Xl1,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vsldoi $t4,$Xm1,$zero,8 + vsldoi $t5,$zero,$Xm1,8 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + vxor $Xl1,$Xl1,$t4 + vxor $Xh1,$Xh1,$t5 + + vsldoi $Xl,$Xl,$Xl,8 + vsldoi $Xl1,$Xl1,$Xl1,8 + vxor $Xl,$Xl,$t2 + vxor $Xl1,$Xl1,$t6 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vsldoi $t5,$Xl1,$Xl1,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + vpmsumd $Xl1,$Xl1,$xC2 + vxor $t1,$t1,$Xh + vxor $t5,$t5,$Xh1 + vxor $Xl,$Xl,$t1 + vxor $Xl1,$Xl1,$t5 + + vsldoi $H,$Xl,$Xl,8 + vsldoi $H2,$Xl1,$Xl1,8 + vsldoi $Hl,$zero,$H,8 + vsldoi $Hh,$H,$zero,8 + vsldoi $H2l,$zero,$H2,8 + vsldoi $H2h,$H2,$zero,8 + + stvx_u $Hl,r8,r3 # save H^3 + li r8,0xa0 + stvx_u $H,r9,r3 + li r9,0xb0 + stvx_u $Hh,r10,r3 + li r10,0xc0 + stvx_u $H2l,r8,r3 # save H^4 + stvx_u $H2,r9,r3 + stvx_u $H2h,r10,r3 + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,2,0 + .long 0 +.size .gcm_init_p8,.-.gcm_init_p8 +___ +} +$code.=<<___; +.globl .gcm_gmult_p8 +.align 5 +.gcm_gmult_p8: + lis r0,0xfff8 + li r8,0x10 + mfspr $vrsave,256 + li r9,0x20 + mtspr 256,r0 + li r10,0x30 + lvx_u $IN,0,$Xip # load Xi + + lvx_u $Hl,r8,$Htbl # load pre-computed table + le?lvsl $lemask,r0,r0 + lvx_u $H, r9,$Htbl + le?vspltisb $t0,0x07 + lvx_u $Hh,r10,$Htbl + le?vxor $lemask,$lemask,$t0 + lvx_u $xC2,0,$Htbl + le?vperm $IN,$IN,$IN,$lemask + vxor $zero,$zero,$zero + + vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo + vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi + vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + vxor $t1,$t1,$Xh + vxor $Xl,$Xl,$t1 + + le?vperm $Xl,$Xl,$Xl,$lemask + stvx_u $Xl,0,$Xip # write out Xi + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,2,0 + .long 0 +.size .gcm_gmult_p8,.-.gcm_gmult_p8 + +.globl .gcm_ghash_p8 +.align 5 +.gcm_ghash_p8: + li r0,-4096 + li r8,0x10 + mfspr $vrsave,256 + li r9,0x20 + mtspr 256,r0 + li r10,0x30 + lvx_u $Xl,0,$Xip # load Xi + + lvx_u $Hl,r8,$Htbl # load pre-computed table + li r8,0x40 + le?lvsl $lemask,r0,r0 + lvx_u $H, r9,$Htbl + li r9,0x50 + le?vspltisb $t0,0x07 + lvx_u $Hh,r10,$Htbl + li r10,0x60 + le?vxor $lemask,$lemask,$t0 + lvx_u $xC2,0,$Htbl + le?vperm $Xl,$Xl,$Xl,$lemask + vxor $zero,$zero,$zero + + ${UCMP}i $len,64 + bge Lgcm_ghash_p8_4x + + lvx_u $IN,0,$inp + addi $inp,$inp,16 + subic. $len,$len,16 + le?vperm $IN,$IN,$IN,$lemask + vxor $IN,$IN,$Xl + beq Lshort + + lvx_u $H2l,r8,$Htbl # load H^2 + li r8,16 + lvx_u $H2, r9,$Htbl + add r9,$inp,$len # end of input + lvx_u $H2h,r10,$Htbl + be?b Loop_2x + +.align 5 +Loop_2x: + lvx_u $IN1,0,$inp + le?vperm $IN1,$IN1,$IN1,$lemask + + subic $len,$len,32 + vpmsumd $Xl,$IN,$H2l # H^2.lo·Xi.lo + vpmsumd $Xl1,$IN1,$Hl # H.lo·Xi+1.lo + subfe r0,r0,r0 # borrow?-1:0 + vpmsumd $Xm,$IN,$H2 # H^2.hi·Xi.lo+H^2.lo·Xi.hi + vpmsumd $Xm1,$IN1,$H # H.hi·Xi+1.lo+H.lo·Xi+1.hi + and r0,r0,$len + vpmsumd $Xh,$IN,$H2h # H^2.hi·Xi.hi + vpmsumd $Xh1,$IN1,$Hh # H.hi·Xi+1.hi + add $inp,$inp,r0 + + vxor $Xl,$Xl,$Xl1 + vxor $Xm,$Xm,$Xm1 + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xh,$Xh,$Xh1 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + lvx_u $IN,r8,$inp + addi $inp,$inp,32 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + le?vperm $IN,$IN,$IN,$lemask + vxor $t1,$t1,$Xh + vxor $IN,$IN,$t1 + vxor $IN,$IN,$Xl + $UCMP r9,$inp + bgt Loop_2x # done yet? + + cmplwi $len,0 + bne Leven + +Lshort: + vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo + vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi + vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + vxor $t1,$t1,$Xh + +Leven: + vxor $Xl,$Xl,$t1 + le?vperm $Xl,$Xl,$Xl,$lemask + stvx_u $Xl,0,$Xip # write out Xi + + mtspr 256,$vrsave + blr + .long 0 + .byte 0,12,0x14,0,0,0,4,0 + .long 0 +___ +{ +my ($Xl3,$Xm2,$IN2,$H3l,$H3,$H3h, + $Xh3,$Xm3,$IN3,$H4l,$H4,$H4h) = map("v$_",(20..31)); +my $IN0=$IN; +my ($H21l,$H21h,$loperm,$hiperm) = ($Hl,$Hh,$H2l,$H2h); + +$code.=<<___; +.align 5 +.gcm_ghash_p8_4x: +Lgcm_ghash_p8_4x: + $STU $sp,-$FRAME($sp) + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + stvx v20,r10,$sp + addi r10,r10,32 + stvx v21,r11,$sp + addi r11,r11,32 + stvx v22,r10,$sp + addi r10,r10,32 + stvx v23,r11,$sp + addi r11,r11,32 + stvx v24,r10,$sp + addi r10,r10,32 + stvx v25,r11,$sp + addi r11,r11,32 + stvx v26,r10,$sp + addi r10,r10,32 + stvx v27,r11,$sp + addi r11,r11,32 + stvx v28,r10,$sp + addi r10,r10,32 + stvx v29,r11,$sp + addi r11,r11,32 + stvx v30,r10,$sp + li r10,0x60 + stvx v31,r11,$sp + li r0,-1 + stw $vrsave,`$FRAME-4`($sp) # save vrsave + mtspr 256,r0 # preserve all AltiVec registers + + lvsl $t0,0,r8 # 0x0001..0e0f + #lvx_u $H2l,r8,$Htbl # load H^2 + li r8,0x70 + lvx_u $H2, r9,$Htbl + li r9,0x80 + vspltisb $t1,8 # 0x0808..0808 + #lvx_u $H2h,r10,$Htbl + li r10,0x90 + lvx_u $H3l,r8,$Htbl # load H^3 + li r8,0xa0 + lvx_u $H3, r9,$Htbl + li r9,0xb0 + lvx_u $H3h,r10,$Htbl + li r10,0xc0 + lvx_u $H4l,r8,$Htbl # load H^4 + li r8,0x10 + lvx_u $H4, r9,$Htbl + li r9,0x20 + lvx_u $H4h,r10,$Htbl + li r10,0x30 + + vsldoi $t2,$zero,$t1,8 # 0x0000..0808 + vaddubm $hiperm,$t0,$t2 # 0x0001..1617 + vaddubm $loperm,$t1,$hiperm # 0x0809..1e1f + + $SHRI $len,$len,4 # this allows to use sign bit + # as carry + lvx_u $IN0,0,$inp # load input + lvx_u $IN1,r8,$inp + subic. $len,$len,8 + lvx_u $IN2,r9,$inp + lvx_u $IN3,r10,$inp + addi $inp,$inp,0x40 + le?vperm $IN0,$IN0,$IN0,$lemask + le?vperm $IN1,$IN1,$IN1,$lemask + le?vperm $IN2,$IN2,$IN2,$lemask + le?vperm $IN3,$IN3,$IN3,$lemask + + vxor $Xh,$IN0,$Xl + + vpmsumd $Xl1,$IN1,$H3l + vpmsumd $Xm1,$IN1,$H3 + vpmsumd $Xh1,$IN1,$H3h + + vperm $H21l,$H2,$H,$hiperm + vperm $t0,$IN2,$IN3,$loperm + vperm $H21h,$H2,$H,$loperm + vperm $t1,$IN2,$IN3,$hiperm + vpmsumd $Xm2,$IN2,$H2 # H^2.lo·Xi+2.hi+H^2.hi·Xi+2.lo + vpmsumd $Xl3,$t0,$H21l # H^2.lo·Xi+2.lo+H.lo·Xi+3.lo + vpmsumd $Xm3,$IN3,$H # H.hi·Xi+3.lo +H.lo·Xi+3.hi + vpmsumd $Xh3,$t1,$H21h # H^2.hi·Xi+2.hi+H.hi·Xi+3.hi + + vxor $Xm2,$Xm2,$Xm1 + vxor $Xl3,$Xl3,$Xl1 + vxor $Xm3,$Xm3,$Xm2 + vxor $Xh3,$Xh3,$Xh1 + + blt Ltail_4x + +Loop_4x: + lvx_u $IN0,0,$inp + lvx_u $IN1,r8,$inp + subic. $len,$len,4 + lvx_u $IN2,r9,$inp + lvx_u $IN3,r10,$inp + addi $inp,$inp,0x40 + le?vperm $IN1,$IN1,$IN1,$lemask + le?vperm $IN2,$IN2,$IN2,$lemask + le?vperm $IN3,$IN3,$IN3,$lemask + le?vperm $IN0,$IN0,$IN0,$lemask + + vpmsumd $Xl,$Xh,$H4l # H^4.lo·Xi.lo + vpmsumd $Xm,$Xh,$H4 # H^4.hi·Xi.lo+H^4.lo·Xi.hi + vpmsumd $Xh,$Xh,$H4h # H^4.hi·Xi.hi + vpmsumd $Xl1,$IN1,$H3l + vpmsumd $Xm1,$IN1,$H3 + vpmsumd $Xh1,$IN1,$H3h + + vxor $Xl,$Xl,$Xl3 + vxor $Xm,$Xm,$Xm3 + vxor $Xh,$Xh,$Xh3 + vperm $t0,$IN2,$IN3,$loperm + vperm $t1,$IN2,$IN3,$hiperm + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + vpmsumd $Xl3,$t0,$H21l # H.lo·Xi+3.lo +H^2.lo·Xi+2.lo + vpmsumd $Xh3,$t1,$H21h # H.hi·Xi+3.hi +H^2.hi·Xi+2.hi + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xm2,$IN2,$H2 # H^2.hi·Xi+2.lo+H^2.lo·Xi+2.hi + vpmsumd $Xm3,$IN3,$H # H.hi·Xi+3.lo +H.lo·Xi+3.hi + vpmsumd $Xl,$Xl,$xC2 + + vxor $Xl3,$Xl3,$Xl1 + vxor $Xh3,$Xh3,$Xh1 + vxor $Xh,$Xh,$IN0 + vxor $Xm2,$Xm2,$Xm1 + vxor $Xh,$Xh,$t1 + vxor $Xm3,$Xm3,$Xm2 + vxor $Xh,$Xh,$Xl + bge Loop_4x + +Ltail_4x: + vpmsumd $Xl,$Xh,$H4l # H^4.lo·Xi.lo + vpmsumd $Xm,$Xh,$H4 # H^4.hi·Xi.lo+H^4.lo·Xi.hi + vpmsumd $Xh,$Xh,$H4h # H^4.hi·Xi.hi + + vxor $Xl,$Xl,$Xl3 + vxor $Xm,$Xm,$Xm3 + + vpmsumd $t2,$Xl,$xC2 # 1st reduction phase + + vsldoi $t0,$Xm,$zero,8 + vsldoi $t1,$zero,$Xm,8 + vxor $Xh,$Xh,$Xh3 + vxor $Xl,$Xl,$t0 + vxor $Xh,$Xh,$t1 + + vsldoi $Xl,$Xl,$Xl,8 + vxor $Xl,$Xl,$t2 + + vsldoi $t1,$Xl,$Xl,8 # 2nd reduction phase + vpmsumd $Xl,$Xl,$xC2 + vxor $t1,$t1,$Xh + vxor $Xl,$Xl,$t1 + + addic. $len,$len,4 + beq Ldone_4x + + lvx_u $IN0,0,$inp + ${UCMP}i $len,2 + li $len,-4 + blt Lone + lvx_u $IN1,r8,$inp + beq Ltwo + +Lthree: + lvx_u $IN2,r9,$inp + le?vperm $IN0,$IN0,$IN0,$lemask + le?vperm $IN1,$IN1,$IN1,$lemask + le?vperm $IN2,$IN2,$IN2,$lemask + + vxor $Xh,$IN0,$Xl + vmr $H4l,$H3l + vmr $H4, $H3 + vmr $H4h,$H3h + + vperm $t0,$IN1,$IN2,$loperm + vperm $t1,$IN1,$IN2,$hiperm + vpmsumd $Xm2,$IN1,$H2 # H^2.lo·Xi+1.hi+H^2.hi·Xi+1.lo + vpmsumd $Xm3,$IN2,$H # H.hi·Xi+2.lo +H.lo·Xi+2.hi + vpmsumd $Xl3,$t0,$H21l # H^2.lo·Xi+1.lo+H.lo·Xi+2.lo + vpmsumd $Xh3,$t1,$H21h # H^2.hi·Xi+1.hi+H.hi·Xi+2.hi + + vxor $Xm3,$Xm3,$Xm2 + b Ltail_4x + +.align 4 +Ltwo: + le?vperm $IN0,$IN0,$IN0,$lemask + le?vperm $IN1,$IN1,$IN1,$lemask + + vxor $Xh,$IN0,$Xl + vperm $t0,$zero,$IN1,$loperm + vperm $t1,$zero,$IN1,$hiperm + + vsldoi $H4l,$zero,$H2,8 + vmr $H4, $H2 + vsldoi $H4h,$H2,$zero,8 + + vpmsumd $Xl3,$t0, $H21l # H.lo·Xi+1.lo + vpmsumd $Xm3,$IN1,$H # H.hi·Xi+1.lo+H.lo·Xi+2.hi + vpmsumd $Xh3,$t1, $H21h # H.hi·Xi+1.hi + + b Ltail_4x + +.align 4 +Lone: + le?vperm $IN0,$IN0,$IN0,$lemask + + vsldoi $H4l,$zero,$H,8 + vmr $H4, $H + vsldoi $H4h,$H,$zero,8 + + vxor $Xh,$IN0,$Xl + vxor $Xl3,$Xl3,$Xl3 + vxor $Xm3,$Xm3,$Xm3 + vxor $Xh3,$Xh3,$Xh3 + + b Ltail_4x + +Ldone_4x: + le?vperm $Xl,$Xl,$Xl,$lemask + stvx_u $Xl,0,$Xip # write out Xi + + li r10,`15+6*$SIZE_T` + li r11,`31+6*$SIZE_T` + mtspr 256,$vrsave + lvx v20,r10,$sp + addi r10,r10,32 + lvx v21,r11,$sp + addi r11,r11,32 + lvx v22,r10,$sp + addi r10,r10,32 + lvx v23,r11,$sp + addi r11,r11,32 + lvx v24,r10,$sp + addi r10,r10,32 + lvx v25,r11,$sp + addi r11,r11,32 + lvx v26,r10,$sp + addi r10,r10,32 + lvx v27,r11,$sp + addi r11,r11,32 + lvx v28,r10,$sp + addi r10,r10,32 + lvx v29,r11,$sp + addi r11,r11,32 + lvx v30,r10,$sp + lvx v31,r11,$sp + addi $sp,$sp,$FRAME + blr + .long 0 + .byte 0,12,0x04,0,0x80,0,4,0 + .long 0 +___ +} +$code.=<<___; +.size .gcm_ghash_p8,.-.gcm_ghash_p8 + +.asciz "GHASH for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>" +.align 2 +___ + +foreach (split("\n",$code)) { + s/\`([^\`]*)\`/eval $1/geo; + + if ($flavour =~ /le$/o) { # little-endian + s/le\?//o or + s/be\?/#be#/o; + } else { + s/le\?/#le#/o or + s/be\?//o; + } + print $_,"\n"; +} + +close STDOUT; # enforce flush diff --git a/crypto/modes/gcm.c b/crypto/modes/gcm.c index 1b43cd4b..69bdfdc2 100644 --- a/crypto/modes/gcm.c +++ b/crypto/modes/gcm.c @@ -60,7 +60,8 @@ #if !defined(OPENSSL_NO_ASM) && \ (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \ - defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) + defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64) || \ + defined(OPENSSL_PPC64LE)) #define GHASH_ASM #endif @@ -145,7 +146,7 @@ static void gcm_init_4bit(u128 Htable[16], uint64_t H[2]) { #endif } -#if !defined(GHASH_ASM) || defined(OPENSSL_AARCH64) +#if !defined(GHASH_ASM) || defined(OPENSSL_AARCH64) || defined(OPENSSL_PPC64LE) static const size_t rem_4bit[16] = { PACK(0x0000), PACK(0x1C20), PACK(0x3840), PACK(0x2460), PACK(0x7080), PACK(0x6CA0), PACK(0x48C0), PACK(0x54E0), @@ -405,6 +406,13 @@ static void gcm_ghash_neon(uint64_t Xi[2], const u128 Htable[16], #endif #endif +#elif defined(OPENSSL_PPC64LE) +#define GHASH_ASM_PPC64LE +#define GCM_FUNCREF_4BIT +void gcm_init_p8(u128 Htable[16], const uint64_t Xi[2]); +void gcm_gmult_p8(uint64_t Xi[2], const u128 Htable[16]); +void gcm_ghash_p8(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp, + size_t len); #endif #endif @@ -484,6 +492,16 @@ void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key, ctx->gmult = gcm_gmult_4bit; ctx->ghash = gcm_ghash_4bit; } +#elif defined(GHASH_ASM_PPC64LE) + if (CRYPTO_is_PPC64LE_vcrypto_capable()) { + gcm_init_p8(ctx->Htable, ctx->H.u); + ctx->gmult = gcm_gmult_p8; + ctx->ghash = gcm_ghash_p8; + } else { + gcm_init_4bit(ctx->Htable, ctx->H.u); + ctx->gmult = gcm_gmult_4bit; + ctx->ghash = gcm_ghash_4bit; + } #else gcm_init_4bit(ctx->Htable, ctx->H.u); ctx->gmult = gcm_gmult_4bit; diff --git a/crypto/perlasm/ppc-xlate.pl b/crypto/perlasm/ppc-xlate.pl new file mode 100644 index 00000000..55b02bca --- /dev/null +++ b/crypto/perlasm/ppc-xlate.pl @@ -0,0 +1,299 @@ +#! /usr/bin/env perl +# Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. +# +# Licensed under the OpenSSL license (the "License"). You may not use +# this file except in compliance with the License. You can obtain a copy +# in the file LICENSE in the source distribution or at +# https://www.openssl.org/source/license.html + +my $flavour = shift; +my $output = shift; +open STDOUT,">$output" || die "can't open $output: $!"; + +my %GLOBALS; +my %TYPES; +my $dotinlocallabels=($flavour=~/linux/)?1:0; + +################################################################ +# directives which need special treatment on different platforms +################################################################ +my $type = sub { + my ($dir,$name,$type) = @_; + + $TYPES{$name} = $type; + if ($flavour =~ /linux/) { + $name =~ s|^\.||; + ".type $name,$type"; + } else { + ""; + } +}; +my $globl = sub { + my $junk = shift; + my $name = shift; + my $global = \$GLOBALS{$name}; + my $type = \$TYPES{$name}; + my $ret; + + $name =~ s|^\.||; + + SWITCH: for ($flavour) { + /aix/ && do { if (!$$type) { + $$type = "\@function"; + } + if ($$type =~ /function/) { + $name = ".$name"; + } + last; + }; + /osx/ && do { $name = "_$name"; + last; + }; + /linux.*(32|64le)/ + && do { $ret .= ".globl $name"; + if (!$$type) { + $ret .= "\n.type $name,\@function"; + $$type = "\@function"; + } + last; + }; + /linux.*64/ && do { $ret .= ".globl $name"; + if (!$$type) { + $ret .= "\n.type $name,\@function"; + $$type = "\@function"; + } + if ($$type =~ /function/) { + $ret .= "\n.section \".opd\",\"aw\""; + $ret .= "\n.align 3"; + $ret .= "\n$name:"; + $ret .= "\n.quad .$name,.TOC.\@tocbase,0"; + $ret .= "\n.previous"; + $name = ".$name"; + } + last; + }; + } + + $ret = ".globl $name" if (!$ret); + $$global = $name; + $ret; +}; +my $text = sub { + my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text"; + $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/); + $ret; +}; +my $machine = sub { + my $junk = shift; + my $arch = shift; + if ($flavour =~ /osx/) + { $arch =~ s/\"//g; + $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any"); + } + ".machine $arch"; +}; +my $size = sub { + if ($flavour =~ /linux/) + { shift; + my $name = shift; + my $real = $GLOBALS{$name} ? \$GLOBALS{$name} : \$name; + my $ret = ".size $$real,.-$$real"; + $name =~ s|^\.||; + if ($$real ne $name) { + $ret .= "\n.size $name,.-$$real"; + } + $ret; + } + else + { ""; } +}; +my $asciz = sub { + shift; + my $line = join(",",@_); + if ($line =~ /^"(.*)"$/) + { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; } + else + { ""; } +}; +my $quad = sub { + shift; + my @ret; + my ($hi,$lo); + for (@_) { + if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io) + { $hi=$1?"0x$1":"0"; $lo="0x$2"; } + elsif (/^([0-9]+)$/o) + { $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl + else + { $hi=undef; $lo=$_; } + + if (defined($hi)) + { push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); } + else + { push(@ret,".quad $lo"); } + } + join("\n",@ret); +}; + +################################################################ +# simplified mnemonics not handled by at least one assembler +################################################################ +my $cmplw = sub { + my $f = shift; + my $cr = 0; $cr = shift if ($#_>1); + # Some out-of-date 32-bit GNU assembler just can't handle cmplw... + ($flavour =~ /linux.*32/) ? + " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 : + " cmplw ".join(',',$cr,@_); +}; +my $bdnz = sub { + my $f = shift; + my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint + " bc $bo,0,".shift; +} if ($flavour!~/linux/); +my $bltlr = sub { + my $f = shift; + my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint + ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints + " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 : + " bclr $bo,0"; +}; +my $bnelr = sub { + my $f = shift; + my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint + ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints + " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 : + " bclr $bo,2"; +}; +my $beqlr = sub { + my $f = shift; + my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint + ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints + " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 : + " bclr $bo,2"; +}; +# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two +# arguments is 64, with "operand out of range" error. +my $extrdi = sub { + my ($f,$ra,$rs,$n,$b) = @_; + $b = ($b+$n)&63; $n = 64-$n; + " rldicl $ra,$rs,$b,$n"; +}; +my $vmr = sub { + my ($f,$vx,$vy) = @_; + " vor $vx,$vy,$vy"; +}; + +# Some ABIs specify vrsave, special-purpose register #256, as reserved +# for system use. +my $no_vrsave = ($flavour =~ /aix|linux64le/); +my $mtspr = sub { + my ($f,$idx,$ra) = @_; + if ($idx == 256 && $no_vrsave) { + " or $ra,$ra,$ra"; + } else { + " mtspr $idx,$ra"; + } +}; +my $mfspr = sub { + my ($f,$rd,$idx) = @_; + if ($idx == 256 && $no_vrsave) { + " li $rd,-1"; + } else { + " mfspr $rd,$idx"; + } +}; + +# PowerISA 2.06 stuff +sub vsxmem_op { + my ($f, $vrt, $ra, $rb, $op) = @_; + " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1); +} +# made-up unaligned memory reference AltiVec/VMX instructions +my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x +my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x +my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx +my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx +my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x +my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x + +# PowerISA 2.07 stuff +sub vcrypto_op { + my ($f, $vrt, $vra, $vrb, $op) = @_; + " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op; +} +my $vcipher = sub { vcrypto_op(@_, 1288); }; +my $vcipherlast = sub { vcrypto_op(@_, 1289); }; +my $vncipher = sub { vcrypto_op(@_, 1352); }; +my $vncipherlast= sub { vcrypto_op(@_, 1353); }; +my $vsbox = sub { vcrypto_op(@_, 0, 1480); }; +my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); }; +my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); }; +my $vpmsumb = sub { vcrypto_op(@_, 1032); }; +my $vpmsumd = sub { vcrypto_op(@_, 1224); }; +my $vpmsubh = sub { vcrypto_op(@_, 1096); }; +my $vpmsumw = sub { vcrypto_op(@_, 1160); }; +my $vaddudm = sub { vcrypto_op(@_, 192); }; + +my $mtsle = sub { + my ($f, $arg) = @_; + " .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2); +}; + +# PowerISA 3.0 stuff +my $maddhdu = sub { + my ($f, $rt, $ra, $rb, $rc) = @_; + " .long ".sprintf "0x%X",(4<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($rc<<6)|49; +}; +my $maddld = sub { + my ($f, $rt, $ra, $rb, $rc) = @_; + " .long ".sprintf "0x%X",(4<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($rc<<6)|51; +}; + +my $darn = sub { + my ($f, $rt, $l) = @_; + " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($l<<16)|(755<<1); +}; + +while($line=<>) { + + $line =~ s|[#!;].*$||; # get rid of asm-style comments... + $line =~ s|/\*.*\*/||; # ... and C-style comments... + $line =~ s|^\s+||; # ... and skip white spaces in beginning... + $line =~ s|\s+$||; # ... and at the end + + { + $line =~ s|\.L(\w+)|L$1|g; # common denominator for Locallabel + $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels); + } + + { + $line =~ s|(^[\.\w]+)\:\s*||; + my $label = $1; + if ($label) { + my $xlated = ($GLOBALS{$label} or $label); + print "$xlated:"; + if ($flavour =~ /linux.*64le/) { + if ($TYPES{$label} =~ /function/) { + printf "\n.localentry %s,0\n",$xlated; + } + } + } + } + + { + $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||; + my $c = $1; $c = "\t" if ($c eq ""); + my $mnemonic = $2; + my $f = $3; + my $opcode = eval("\$$mnemonic"); + $line =~ s/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/); + if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); } + elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; } + } + + print $line if ($line); + print "\n"; +} + +close STDOUT; |