diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2023-01-18 10:07:19 +0100 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-01-18 10:07:19 +0100 |
commit | 596f674dc9a7b5456f6b01de3211e0b820786dc8 (patch) | |
tree | 2e0487fe7ed5093875b89da5eb7296f37331b164 /arch | |
parent | crypto: sun8i-ce - Add TRNG clock to the D1 variant (diff) | |
download | linux-596f674dc9a7b5456f6b01de3211e0b820786dc8.tar.xz linux-596f674dc9a7b5456f6b01de3211e0b820786dc8.zip |
crypto: p10-aes-gcm - Revert implementation
Revert the changes that added p10-aes-gcm:
0781bbd7eaca ("crypto: p10-aes-gcm - A perl script to process PowerPC assembler source")
41a6437ab415 ("crypto: p10-aes-gcm - Supporting functions for ghash")
3b47eccaaff4 ("crypto: p10-aes-gcm - Supporting functions for AES")
ca68a96c37eb ("crypto: p10-aes-gcm - An accelerated AES/GCM stitched implementation")
cc40379b6e19 ("crypto: p10-aes-gcm - Glue code for AES/GCM stitched implementation")
3c657e8689ab ("crypto: p10-aes-gcm - Update Kconfig and Makefile")
These changes fail to build in many configurations and are not ready
for prime time.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/powerpc/crypto/Kconfig | 11 | ||||
-rw-r--r-- | arch/powerpc/crypto/Makefile | 10 | ||||
-rw-r--r-- | arch/powerpc/crypto/aesp8-ppc.pl | 3846 | ||||
-rw-r--r-- | arch/powerpc/crypto/ghashp8-ppc.pl | 370 | ||||
-rw-r--r-- | arch/powerpc/crypto/p10-aes-gcm-glue.c | 345 | ||||
-rw-r--r-- | arch/powerpc/crypto/p10_aes_gcm.S | 1519 | ||||
-rw-r--r-- | arch/powerpc/crypto/ppc-xlate.pl | 229 |
7 files changed, 0 insertions, 6330 deletions
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig index db7d99383993..c1b964447401 100644 --- a/arch/powerpc/crypto/Kconfig +++ b/arch/powerpc/crypto/Kconfig @@ -94,15 +94,4 @@ config CRYPTO_AES_PPC_SPE architecture specific assembler implementations that work on 1KB tables or 256 bytes S-boxes. -config CRYPTO_P10_AES_GCM - tristate "Stitched AES/GCM acceleration support on P10+ CPU (PPC)" - depends on PPC64 - select CRYPTO_LIB_AES - select CRYPTO_ALGAPI - select CRYPTO_AEAD - default m - help - Support for cryptographic acceleration instructions on Power10+ CPU. - This module supports stitched acceleration for AES/GCM in hardware. - endmenu diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile index 5b8252013abd..4808d97fede5 100644 --- a/arch/powerpc/crypto/Makefile +++ b/arch/powerpc/crypto/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_CRYPTO_SHA256_PPC_SPE) += sha256-ppc-spe.o obj-$(CONFIG_CRYPTO_CRC32C_VPMSUM) += crc32c-vpmsum.o obj-$(CONFIG_CRYPTO_CRCT10DIF_VPMSUM) += crct10dif-vpmsum.o obj-$(CONFIG_CRYPTO_VPMSUM_TESTER) += crc-vpmsum_test.o -obj-$(CONFIG_CRYPTO_P10_AES_GCM) += p10-aes-gcm-crypto.o aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes-spe-glue.o md5-ppc-y := md5-asm.o md5-glue.o @@ -22,12 +21,3 @@ sha1-ppc-spe-y := sha1-spe-asm.o sha1-spe-glue.o sha256-ppc-spe-y := sha256-spe-asm.o sha256-spe-glue.o crc32c-vpmsum-y := crc32c-vpmsum_asm.o crc32c-vpmsum_glue.o crct10dif-vpmsum-y := crct10dif-vpmsum_asm.o crct10dif-vpmsum_glue.o -p10-aes-gcm-crypto-y := p10-aes-gcm-glue.o p10_aes_gcm.o ghashp8-ppc.o aesp8-ppc.o - -quiet_cmd_perl = PERL $@ - cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@ - -targets += aesp8-ppc.S ghashp8-ppc.S - -$(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S: $(obj)/%.S: $(src)/%.pl FORCE - $(call if_changed,perl) diff --git a/arch/powerpc/crypto/aesp8-ppc.pl b/arch/powerpc/crypto/aesp8-ppc.pl deleted file mode 100644 index 50a0a18f35da..000000000000 --- a/arch/powerpc/crypto/aesp8-ppc.pl +++ /dev/null @@ -1,3846 +0,0 @@ -#! /usr/bin/env perl -# SPDX-License-Identifier: GPL-2.0 - -# This code is taken from CRYPTOGAMs[1] and is included here using the option -# in the license to distribute the code under the GPL. Therefore this program -# is free software; you can redistribute it and/or modify it under the terms of -# the GNU General Public License version 2 as published by the Free Software -# Foundation. -# -# [1] https://www.openssl.org/~appro/cryptogams/ - -# Copyright (c) 2006-2017, CRYPTOGAMS by <appro@openssl.org> -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# -# * Redistributions of source code must retain copyright notices, -# this list of conditions and the following disclaimer. -# -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following -# disclaimer in the documentation and/or other materials -# provided with the distribution. -# -# * Neither the name of the CRYPTOGAMS nor the names of its -# copyright holder and contributors may be used to endorse or -# promote products derived from this software without specific -# prior written permission. -# -# ALTERNATIVELY, provided that this notice is retained in full, this -# product may be distributed under the terms of the GNU General Public -# License (GPL), in which case the provisions of the GPL apply INSTEAD OF -# those given above. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -# ==================================================================== -# 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 https://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_p8"; - -$sp="r1"; -$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 -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 - $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 - 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 - ${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)); -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 0,12,0x14,0,0x80,6,6,0 - .long 0 -.size .${prefix}_cbc_encrypt,.-.${prefix}_cbc_encrypt -___ -}} }}} - -######################################################################### -{{{ # CTR procedure[s] # - -####################### WARNING: Here be dragons! ####################### -# -# This code is written as 'ctr32', based on a 32-bit counter used -# upstream. The kernel does *not* use a 32-bit counter. The kernel uses -# a 128-bit counter. -# -# This leads to subtle changes from the upstream code: the counter -# is incremented with vaddu_q_m rather than vaddu_w_m. This occurs in -# both the bulk (8 blocks at a time) path, and in the individual block -# path. Be aware of this when doing updates. -# -# See: -# 1d4aa0b4c181 ("crypto: vmx - Fixing AES-CTR counter bug") -# 009b30ac7444 ("crypto: vmx - CTR: always increment IV as quadword") -# https://github.com/openssl/openssl/pull/8942 -# -######################################################################### -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 - ${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 - - vadduqm $ivec,$ivec,$one # Kernel change for 128-bit - 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)); -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] - - vadduqm $two,$one,$one - subi $inp,$inp,15 # undo "caller" - $SHL $len,$len,4 - - vadduqm $out1,$ivec,$one # counter values ... - vadduqm $out2,$ivec,$two # (do all ctr adds as 128-bit) - vxor $out0,$ivec,$rndkey0 # ... xored with rndkey[0] - le?li $idx,8 - vadduqm $out3,$out1,$two - vxor $out1,$out1,$rndkey0 - le?lvsl $inpperm,0,$idx - vadduqm $out4,$out2,$two - vxor $out2,$out2,$rndkey0 - le?vspltisb $tmp,0x0f - vadduqm $out5,$out3,$two - vxor $out3,$out3,$rndkey0 - le?vxor $inpperm,$inpperm,$tmp # transform for lvx_u/stvx_u - vadduqm $out6,$out4,$two - vxor $out4,$out4,$rndkey0 - vadduqm $out7,$out5,$two - vxor $out5,$out5,$rndkey0 - vadduqm $ivec,$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 - vadduqm $out1,$ivec,$one # counter values ... - vcipherlast $in2,$out2,$in2 - vadduqm $out2,$ivec,$two - vxor $out0,$ivec,$rndkey0 # ... xored with rndkey[0] - vcipherlast $in3,$out3,$in3 - vadduqm $out3,$out1,$two - vxor $out1,$out1,$rndkey0 - vcipherlast $in4,$out4,$in4 - vadduqm $out4,$out2,$two - vxor $out2,$out2,$rndkey0 - vcipherlast $in5,$out5,$in5 - vadduqm $out5,$out3,$two - vxor $out3,$out3,$rndkey0 - vcipherlast $in6,$out6,$in6 - vadduqm $out6,$out4,$two - vxor $out4,$out4,$rndkey0 - vcipherlast $in7,$out7,$in7 - vadduqm $out7,$out5,$two - vxor $out5,$out5,$rndkey0 - le?vperm $in0,$in0,$in0,$inpperm - vadduqm $ivec,$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 Lctr32_enc8x_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 Lctr32_enc8x_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 0,12,0x14,0,0x80,6,6,0 - .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 - 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 - 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 $_,"\n"; -} - -close STDOUT; diff --git a/arch/powerpc/crypto/ghashp8-ppc.pl b/arch/powerpc/crypto/ghashp8-ppc.pl deleted file mode 100644 index b56603b4a893..000000000000 --- a/arch/powerpc/crypto/ghashp8-ppc.pl +++ /dev/null @@ -1,370 +0,0 @@ -#!/usr/bin/env perl -# SPDX-License-Identifier: GPL-2.0 - -# This code is taken from the OpenSSL project but the author (Andy Polyakov) -# has relicensed it under the GPLv2. Therefore this program is free software; -# you can redistribute it and/or modify it under the terms of the GNU General -# Public License version 2 as published by the Free Software Foundation. -# -# The original headers, including the original license headers, are -# included below for completeness. - -# ==================================================================== -# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL -# project. The module is, however, dual licensed under OpenSSL and -# CRYPTOGAMS licenses depending on where you obtain it. For further -# details see https://www.openssl.org/~appro/cryptogams/. -# ==================================================================== -# -# GHASH for PowerISA v2.07. -# -# July 2014 -# -# Accurate performance measurements are problematic, because it's -# always virtualized setup with possibly throttled processor. -# Relative comparison is therefore more informative. This initial -# version is ~2.1x slower than hardware-assisted AES-128-CTR, ~12x -# faster than "4-bit" integer-only compiler-generated 64-bit code. -# "Initial version" means that there is room for futher improvement. - -$flavour=shift; -$output =shift; - -if ($flavour =~ /64/) { - $SIZE_T=8; - $LRSAVE=2*$SIZE_T; - $STU="stdu"; - $POP="ld"; - $PUSH="std"; -} elsif ($flavour =~ /32/) { - $SIZE_T=4; - $LRSAVE=$SIZE_T; - $STU="stwu"; - $POP="lwz"; - $PUSH="stw"; -} else { die "nonsense $flavour"; } - -$0 =~ m/(.*[\/\\])[^\/\\]+$/; $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 $vrsave="r12"; -my ($t4,$t5,$t6) = ($Hl,$H,$Hh); - -$code=<<___; -.machine "any" - -.text - -.globl .gcm_init_p8 - lis r0,0xfff0 - li r8,0x10 - mfspr $vrsave,256 - li r9,0x20 - mtspr 256,r0 - li r10,0x30 - lvx_u $H,0,r4 # load H - le?xor r7,r7,r7 - le?addi r7,r7,0x8 # need a vperm start with 08 - le?lvsr 5,0,r7 - le?vspltisb 6,0x0f - le?vxor 5,5,6 # set a b-endian mask - le?vperm $H,$H,$H,5 - - 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 $H,$H,$t1 # twisted H - - vsldoi $H,$H,$H,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 - stvx_u $H, r9,r3 - stvx_u $Hh,r10,r3 - - mtspr 256,$vrsave - blr - .long 0 - .byte 0,12,0x14,0,0,0,2,0 - .long 0 -.size .gcm_init_p8,.-.gcm_init_p8 - -.globl .gcm_init_htable - lis r0,0xfff0 - 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 - - 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_htable,.-.gcm_init_htable - -.globl .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 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 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 - lis r0,0xfff8 - 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 - 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 $Xl,$Xl,$Xl,$lemask - vxor $zero,$zero,$zero - - lvx_u $IN,0,$inp - addi $inp,$inp,16 - subi $len,$len,16 - le?vperm $IN,$IN,$IN,$lemask - vxor $IN,$IN,$Xl - b Loop - -.align 5 -Loop: - subic $len,$len,16 - vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo - subfe. r0,r0,r0 # borrow?-1:0 - vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi - and r0,r0,$len - vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi - add $inp,$inp,r0 - - vpmsumd $t2,$Xl,$xC2 # 1st 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 - lvx_u $IN,0,$inp - addi $inp,$inp,16 - - vsldoi $t1,$Xl,$Xl,8 # 2nd phase - vpmsumd $Xl,$Xl,$xC2 - le?vperm $IN,$IN,$IN,$lemask - vxor $t1,$t1,$Xh - vxor $IN,$IN,$t1 - vxor $IN,$IN,$Xl - beq Loop # did $len-=16 borrow? - - vxor $Xl,$Xl,$t1 - le?vperm $Xl,$Xl,$Xl,$lemask - stvx_u $Xl,0,$Xip # write out Xi - - mtspr 256,$vrsave - blr - .long 0 - .byte 0,12,0x14,0,0,0,4,0 - .long 0 -.size .gcm_ghash_p8,.-.gcm_ghash_p8 - -.asciz "GHASH for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>" -.align 2 -___ - -foreach (split("\n",$code)) { - 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/arch/powerpc/crypto/p10-aes-gcm-glue.c b/arch/powerpc/crypto/p10-aes-gcm-glue.c deleted file mode 100644 index 777e6b5254da..000000000000 --- a/arch/powerpc/crypto/p10-aes-gcm-glue.c +++ /dev/null @@ -1,345 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Glue code for accelerated AES-GCM stitched implementation for ppc64le. - * - * Copyright 2022- IBM Inc. All rights reserved - */ - -#include <asm/unaligned.h> -#include <asm/simd.h> -#include <asm/switch_to.h> -#include <crypto/algapi.h> -#include <crypto/aes.h> -#include <crypto/algapi.h> -#include <crypto/b128ops.h> -#include <crypto/gf128mul.h> -#include <crypto/internal/simd.h> -#include <crypto/internal/aead.h> -#include <crypto/internal/hash.h> -#include <crypto/internal/skcipher.h> -#include <crypto/scatterwalk.h> -#include <linux/cpufeature.h> -#include <linux/crypto.h> -#include <linux/module.h> -#include <linux/types.h> - -#define PPC_MODULE_FEATURE_P10 (32 + ilog2(PPC_FEATURE2_ARCH_3_1)) -#define PPC_ALIGN 16 -#define GCM_IV_SIZE 12 - -MODULE_DESCRIPTION("PPC64le AES-GCM with Stitched implementation"); -MODULE_AUTHOR("Danny Tsen <dtsen@linux.ibm.com"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS_CRYPTO("aes"); - -asmlinkage int aes_p8_set_encrypt_key(const u8 *userKey, const int bits, - void *key); -asmlinkage void aes_p8_encrypt(const u8 *in, u8 *out, const void *key); -asmlinkage void aes_p10_gcm_encrypt(u8 *in, u8 *out, size_t len, - void *rkey, u8 *iv, void *Xi); -asmlinkage void aes_p10_gcm_decrypt(u8 *in, u8 *out, size_t len, - void *rkey, u8 *iv, void *Xi); -asmlinkage void gcm_init_htable(unsigned char htable[256], unsigned char Xi[16]); -asmlinkage void gcm_ghash_p8(unsigned char *Xi, unsigned char *Htable, - unsigned char *aad, unsigned int alen); - -struct aes_key { - u8 key[AES_MAX_KEYLENGTH]; - u64 rounds; -}; - -struct gcm_ctx { - u8 iv[16]; - u8 ivtag[16]; - u8 aad_hash[16]; - u64 aadLen; - u64 Plen; /* offset 56 - used in aes_p10_gcm_{en/de}crypt */ -}; -struct Hash_ctx { - u8 H[16]; /* subkey */ - u8 Htable[256]; /* Xi, Hash table(offset 32) */ -}; - -struct p10_aes_gcm_ctx { - struct aes_key enc_key; -}; - -static void vsx_begin(void) -{ - preempt_disable(); - enable_kernel_vsx(); -} - -static void vsx_end(void) -{ - disable_kernel_vsx(); - preempt_enable(); -} - -static void set_subkey(unsigned char *hash) -{ - *(u64 *)&hash[0] = be64_to_cpup((__be64 *)&hash[0]); - *(u64 *)&hash[8] = be64_to_cpup((__be64 *)&hash[8]); -} - -/* - * Compute aad if any. - * - Hash aad and copy to Xi. - */ -static void set_aad(struct gcm_ctx *gctx, struct Hash_ctx *hash, - unsigned char *aad, int alen) -{ - int i; - u8 nXi[16] = {0, }; - - gctx->aadLen = alen; - i = alen & ~0xf; - if (i) { - gcm_ghash_p8(nXi, hash->Htable+32, aad, i); - aad += i; - alen -= i; - } - if (alen) { - for (i = 0; i < alen; i++) - nXi[i] ^= aad[i]; - - memset(gctx->aad_hash, 0, 16); - gcm_ghash_p8(gctx->aad_hash, hash->Htable+32, nXi, 16); - } else { - memcpy(gctx->aad_hash, nXi, 16); - } - - memcpy(hash->Htable, gctx->aad_hash, 16); -} - -static void gcmp10_init(struct gcm_ctx *gctx, u8 *iv, unsigned char *rdkey, - struct Hash_ctx *hash, u8 *assoc, unsigned int assoclen) -{ - __be32 counter = cpu_to_be32(1); - - aes_p8_encrypt(hash->H, hash->H, rdkey); - set_subkey(hash->H); - gcm_init_htable(hash->Htable+32, hash->H); - - *((__be32 *)(iv+12)) = counter; - - gctx->Plen = 0; - - /* - * Encrypt counter vector as iv tag and increment counter. - */ - aes_p8_encrypt(iv, gctx->ivtag, rdkey); - - counter = cpu_to_be32(2); - *((__be32 *)(iv+12)) = counter; - memcpy(gctx->iv, iv, 16); - - gctx->aadLen = assoclen; - memset(gctx->aad_hash, 0, 16); - if (assoclen) - set_aad(gctx, hash, assoc, assoclen); -} - -static void finish_tag(struct gcm_ctx *gctx, struct Hash_ctx *hash, int len) -{ - int i; - unsigned char len_ac[16 + PPC_ALIGN]; - unsigned char *aclen = PTR_ALIGN((void *)len_ac, PPC_ALIGN); - __be64 clen = cpu_to_be64(len << 3); - __be64 alen = cpu_to_be64(gctx->aadLen << 3); - - if (len == 0 && gctx->aadLen == 0) { - memcpy(hash->Htable, gctx->ivtag, 16); - return; - } - - /* - * Len is in bits. - */ - *((__be64 *)(aclen)) = alen; - *((__be64 *)(aclen+8)) = clen; - - /* - * hash (AAD len and len) - */ - gcm_ghash_p8(hash->Htable, hash->Htable+32, aclen, 16); - - for (i = 0; i < 16; i++) - hash->Htable[i] ^= gctx->ivtag[i]; -} - -static int set_authsize(struct crypto_aead *tfm, unsigned int authsize) -{ - switch (authsize) { - case 4: - case 8: - case 12: - case 13: - case 14: - case 15: - case 16: - break; - default: - return -EINVAL; - } - - return 0; -} - -static int p10_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, - unsigned int keylen) -{ - struct crypto_tfm *tfm = crypto_aead_tfm(aead); - struct p10_aes_gcm_ctx *ctx = crypto_tfm_ctx(tfm); - int ret; - - vsx_begin(); - ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); - vsx_end(); - - return ret ? -EINVAL : 0; -} - -static int p10_aes_gcm_crypt(struct aead_request *req, int enc) -{ - struct crypto_tfm *tfm = req->base.tfm; - struct p10_aes_gcm_ctx *ctx = crypto_tfm_ctx(tfm); - u8 databuf[sizeof(struct gcm_ctx) + PPC_ALIGN]; - struct gcm_ctx *gctx = PTR_ALIGN((void *)databuf, PPC_ALIGN); - u8 hashbuf[sizeof(struct Hash_ctx) + PPC_ALIGN]; - struct Hash_ctx *hash = PTR_ALIGN((void *)hashbuf, PPC_ALIGN); - struct scatter_walk assoc_sg_walk; - struct skcipher_walk walk; - u8 *assocmem = NULL; - u8 *assoc; - unsigned int assoclen = req->assoclen; - unsigned int cryptlen = req->cryptlen; - unsigned char ivbuf[AES_BLOCK_SIZE+PPC_ALIGN]; - unsigned char *iv = PTR_ALIGN((void *)ivbuf, PPC_ALIGN); - int ret; - unsigned long auth_tag_len = crypto_aead_authsize(__crypto_aead_cast(tfm)); - u8 otag[16]; - int total_processed = 0; - - memset(databuf, 0, sizeof(databuf)); - memset(hashbuf, 0, sizeof(hashbuf)); - memset(ivbuf, 0, sizeof(ivbuf)); - memcpy(iv, req->iv, GCM_IV_SIZE); - - /* Linearize assoc, if not already linear */ - if (req->src->length >= assoclen && req->src->length) { - scatterwalk_start(&assoc_sg_walk, req->src); - assoc = scatterwalk_map(&assoc_sg_walk); - } else { - gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? - GFP_KERNEL : GFP_ATOMIC; - - /* assoc can be any length, so must be on heap */ - assocmem = kmalloc(assoclen, flags); - if (unlikely(!assocmem)) - return -ENOMEM; - assoc = assocmem; - - scatterwalk_map_and_copy(assoc, req->src, 0, assoclen, 0); - } - - vsx_begin(); - gcmp10_init(gctx, iv, (unsigned char *) &ctx->enc_key, hash, assoc, assoclen); - vsx_end(); - - if (!assocmem) - scatterwalk_unmap(assoc); - else - kfree(assocmem); - - if (enc) - ret = skcipher_walk_aead_encrypt(&walk, req, false); - else - ret = skcipher_walk_aead_decrypt(&walk, req, false); - if (ret) - return ret; - - while (walk.nbytes > 0 && ret == 0) { - - vsx_begin(); - if (enc) - aes_p10_gcm_encrypt(walk.src.virt.addr, - walk.dst.virt.addr, - walk.nbytes, - &ctx->enc_key, gctx->iv, hash->Htable); - else - aes_p10_gcm_decrypt(walk.src.virt.addr, - walk.dst.virt.addr, - walk.nbytes, - &ctx->enc_key, gctx->iv, hash->Htable); - vsx_end(); - - total_processed += walk.nbytes; - ret = skcipher_walk_done(&walk, 0); - } - - if (ret) - return ret; - - /* Finalize hash */ - vsx_begin(); - finish_tag(gctx, hash, total_processed); - vsx_end(); - - /* copy Xi to end of dst */ - if (enc) - scatterwalk_map_and_copy(hash->Htable, req->dst, req->assoclen + cryptlen, - auth_tag_len, 1); - else { - scatterwalk_map_and_copy(otag, req->src, - req->assoclen + cryptlen - auth_tag_len, - auth_tag_len, 0); - - if (crypto_memneq(otag, hash->Htable, auth_tag_len)) { - memzero_explicit(hash->Htable, 16); - return -EBADMSG; - } - } - - return 0; -} - -static int p10_aes_gcm_encrypt(struct aead_request *req) -{ - return p10_aes_gcm_crypt(req, 1); -} - -static int p10_aes_gcm_decrypt(struct aead_request *req) -{ - return p10_aes_gcm_crypt(req, 0); -} - -static struct aead_alg gcm_aes_alg = { - .ivsize = GCM_IV_SIZE, - .maxauthsize = 16, - - .setauthsize = set_authsize, - .setkey = p10_aes_gcm_setkey, - .encrypt = p10_aes_gcm_encrypt, - .decrypt = p10_aes_gcm_decrypt, - - .base.cra_name = "gcm(aes)", - .base.cra_driver_name = "p10_aes_gcm", - .base.cra_priority = 2100, - .base.cra_blocksize = 1, - .base.cra_ctxsize = sizeof(struct p10_aes_gcm_ctx), - .base.cra_module = THIS_MODULE, -}; - -static int __init p10_init(void) -{ - return crypto_register_aead(&gcm_aes_alg); -} - -static void __exit p10_exit(void) -{ - crypto_unregister_aead(&gcm_aes_alg); -} - -module_cpu_feature_match(PPC_MODULE_FEATURE_P10, p10_init); -module_exit(p10_exit); diff --git a/arch/powerpc/crypto/p10_aes_gcm.S b/arch/powerpc/crypto/p10_aes_gcm.S deleted file mode 100644 index 2306ad7c5e36..000000000000 --- a/arch/powerpc/crypto/p10_aes_gcm.S +++ /dev/null @@ -1,1519 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ - # - # Accelerated AES-GCM stitched implementation for ppc64le. - # - # Copyright 2022- IBM Inc. All rights reserved - # - #=================================================================================== - # Written by Danny Tsen <dtsen@linux.ibm.com> - # - # GHASH is based on the Karatsuba multiplication method. - # - # Xi xor X1 - # - # X1 * H^4 + X2 * H^3 + x3 * H^2 + X4 * H = - # (X1.h * H4.h + xX.l * H4.l + X1 * H4) + - # (X2.h * H3.h + X2.l * H3.l + X2 * H3) + - # (X3.h * H2.h + X3.l * H2.l + X3 * H2) + - # (X4.h * H.h + X4.l * H.l + X4 * H) - # - # Xi = v0 - # H Poly = v2 - # Hash keys = v3 - v14 - # ( H.l, H, H.h) - # ( H^2.l, H^2, H^2.h) - # ( H^3.l, H^3, H^3.h) - # ( H^4.l, H^4, H^4.h) - # - # v30 is IV - # v31 - counter 1 - # - # AES used, - # vs0 - vs14 for round keys - # v15, v16, v17, v18, v19, v20, v21, v22 for 8 blocks (encrypted) - # - # This implementation uses stitched AES-GCM approach to improve overall performance. - # AES is implemented with 8x blocks and GHASH is using 2 4x blocks. - # - # =================================================================================== - # - -.machine "any" -.abiversion 1 -.text - - # 4x loops - # v15 - v18 - input states - # vs1 - vs9 - round keys - # -.macro Loop_aes_middle4x - xxlor 19+32, 1, 1 - xxlor 20+32, 2, 2 - xxlor 21+32, 3, 3 - xxlor 22+32, 4, 4 - - vcipher 15, 15, 19 - vcipher 16, 16, 19 - vcipher 17, 17, 19 - vcipher 18, 18, 19 - - vcipher 15, 15, 20 - vcipher 16, 16, 20 - vcipher 17, 17, 20 - vcipher 18, 18, 20 - - vcipher 15, 15, 21 - vcipher 16, 16, 21 - vcipher 17, 17, 21 - vcipher 18, 18, 21 - - vcipher 15, 15, 22 - vcipher 16, 16, 22 - vcipher 17, 17, 22 - vcipher 18, 18, 22 - - xxlor 19+32, 5, 5 - xxlor 20+32, 6, 6 - xxlor 21+32, 7, 7 - xxlor 22+32, 8, 8 - - vcipher 15, 15, 19 - vcipher 16, 16, 19 - vcipher 17, 17, 19 - vcipher 18, 18, 19 - - vcipher 15, 15, 20 - vcipher 16, 16, 20 - vcipher 17, 17, 20 - vcipher 18, 18, 20 - - vcipher 15, 15, 21 - vcipher 16, 16, 21 - vcipher 17, 17, 21 - vcipher 18, 18, 21 - - vcipher 15, 15, 22 - vcipher 16, 16, 22 - vcipher 17, 17, 22 - vcipher 18, 18, 22 - - xxlor 23+32, 9, 9 - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 -.endm - - # 8x loops - # v15 - v22 - input states - # vs1 - vs9 - round keys - # -.macro Loop_aes_middle8x - xxlor 23+32, 1, 1 - xxlor 24+32, 2, 2 - xxlor 25+32, 3, 3 - xxlor 26+32, 4, 4 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - vcipher 15, 15, 25 - vcipher 16, 16, 25 - vcipher 17, 17, 25 - vcipher 18, 18, 25 - vcipher 19, 19, 25 - vcipher 20, 20, 25 - vcipher 21, 21, 25 - vcipher 22, 22, 25 - - vcipher 15, 15, 26 - vcipher 16, 16, 26 - vcipher 17, 17, 26 - vcipher 18, 18, 26 - vcipher 19, 19, 26 - vcipher 20, 20, 26 - vcipher 21, 21, 26 - vcipher 22, 22, 26 - - xxlor 23+32, 5, 5 - xxlor 24+32, 6, 6 - xxlor 25+32, 7, 7 - xxlor 26+32, 8, 8 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - vcipher 15, 15, 25 - vcipher 16, 16, 25 - vcipher 17, 17, 25 - vcipher 18, 18, 25 - vcipher 19, 19, 25 - vcipher 20, 20, 25 - vcipher 21, 21, 25 - vcipher 22, 22, 25 - - vcipher 15, 15, 26 - vcipher 16, 16, 26 - vcipher 17, 17, 26 - vcipher 18, 18, 26 - vcipher 19, 19, 26 - vcipher 20, 20, 26 - vcipher 21, 21, 26 - vcipher 22, 22, 26 - - xxlor 23+32, 9, 9 - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 -.endm - -.macro Loop_aes_middle_1x - xxlor 19+32, 1, 1 - xxlor 20+32, 2, 2 - xxlor 21+32, 3, 3 - xxlor 22+32, 4, 4 - - vcipher 15, 15, 19 - vcipher 15, 15, 20 - vcipher 15, 15, 21 - vcipher 15, 15, 22 - - xxlor 19+32, 5, 5 - xxlor 20+32, 6, 6 - xxlor 21+32, 7, 7 - xxlor 22+32, 8, 8 - - vcipher 15, 15, 19 - vcipher 15, 15, 20 - vcipher 15, 15, 21 - vcipher 15, 15, 22 - - xxlor 19+32, 9, 9 - vcipher 15, 15, 19 -.endm - - # - # Compute 4x hash values based on Karatsuba method. - # -ppc_aes_gcm_ghash: - vxor 15, 15, 0 - - vpmsumd 23, 12, 15 # H4.L * X.L - vpmsumd 24, 9, 16 - vpmsumd 25, 6, 17 - vpmsumd 26, 3, 18 - - vxor 23, 23, 24 - vxor 23, 23, 25 - vxor 23, 23, 26 # L - - vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L - vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L - vpmsumd 26, 7, 17 - vpmsumd 27, 4, 18 - - vxor 24, 24, 25 - vxor 24, 24, 26 - vxor 24, 24, 27 # M - - # sum hash and reduction with H Poly - vpmsumd 28, 23, 2 # reduction - - vxor 29, 29, 29 - vsldoi 26, 24, 29, 8 # mL - vsldoi 29, 29, 24, 8 # mH - vxor 23, 23, 26 # mL + L - - vsldoi 23, 23, 23, 8 # swap - vxor 23, 23, 28 - - vpmsumd 24, 14, 15 # H4.H * X.H - vpmsumd 25, 11, 16 - vpmsumd 26, 8, 17 - vpmsumd 27, 5, 18 - - vxor 24, 24, 25 - vxor 24, 24, 26 - vxor 24, 24, 27 - - vxor 24, 24, 29 - - # sum hash and reduction with H Poly - vsldoi 27, 23, 23, 8 # swap - vpmsumd 23, 23, 2 - vxor 27, 27, 24 - vxor 23, 23, 27 - - xxlor 32, 23+32, 23+32 # update hash - - blr - - # - # Combine two 4x ghash - # v15 - v22 - input blocks - # -.macro ppc_aes_gcm_ghash2_4x - # first 4x hash - vxor 15, 15, 0 # Xi + X - - vpmsumd 23, 12, 15 # H4.L * X.L - vpmsumd 24, 9, 16 - vpmsumd 25, 6, 17 - vpmsumd 26, 3, 18 - - vxor 23, 23, 24 - vxor 23, 23, 25 - vxor 23, 23, 26 # L - - vpmsumd 24, 13, 15 # H4.L * X.H + H4.H * X.L - vpmsumd 25, 10, 16 # H3.L * X1.H + H3.H * X1.L - vpmsumd 26, 7, 17 - vpmsumd 27, 4, 18 - - vxor 24, 24, 25 - vxor 24, 24, 26 - - # sum hash and reduction with H Poly - vpmsumd 28, 23, 2 # reduction - - vxor 29, 29, 29 - - vxor 24, 24, 27 # M - vsldoi 26, 24, 29, 8 # mL - vsldoi 29, 29, 24, 8 # mH - vxor 23, 23, 26 # mL + L - - vsldoi 23, 23, 23, 8 # swap - vxor 23, 23, 28 - - vpmsumd 24, 14, 15 # H4.H * X.H - vpmsumd 25, 11, 16 - vpmsumd 26, 8, 17 - vpmsumd 27, 5, 18 - - vxor 24, 24, 25 - vxor 24, 24, 26 - vxor 24, 24, 27 # H - - vxor 24, 24, 29 # H + mH - - # sum hash and reduction with H Poly - vsldoi 27, 23, 23, 8 # swap - vpmsumd 23, 23, 2 - vxor 27, 27, 24 - vxor 27, 23, 27 # 1st Xi - - # 2nd 4x hash - vpmsumd 24, 9, 20 - vpmsumd 25, 6, 21 - vpmsumd 26, 3, 22 - vxor 19, 19, 27 # Xi + X - vpmsumd 23, 12, 19 # H4.L * X.L - - vxor 23, 23, 24 - vxor 23, 23, 25 - vxor 23, 23, 26 # L - - vpmsumd 24, 13, 19 # H4.L * X.H + H4.H * X.L - vpmsumd 25, 10, 20 # H3.L * X1.H + H3.H * X1.L - vpmsumd 26, 7, 21 - vpmsumd 27, 4, 22 - - vxor 24, 24, 25 - vxor 24, 24, 26 - - # sum hash and reduction with H Poly - vpmsumd 28, 23, 2 # reduction - - vxor 29, 29, 29 - - vxor 24, 24, 27 # M - vsldoi 26, 24, 29, 8 # mL - vsldoi 29, 29, 24, 8 # mH - vxor 23, 23, 26 # mL + L - - vsldoi 23, 23, 23, 8 # swap - vxor 23, 23, 28 - - vpmsumd 24, 14, 19 # H4.H * X.H - vpmsumd 25, 11, 20 - vpmsumd 26, 8, 21 - vpmsumd 27, 5, 22 - - vxor 24, 24, 25 - vxor 24, 24, 26 - vxor 24, 24, 27 # H - - vxor 24, 24, 29 # H + mH - - # sum hash and reduction with H Poly - vsldoi 27, 23, 23, 8 # swap - vpmsumd 23, 23, 2 - vxor 27, 27, 24 - vxor 23, 23, 27 - - xxlor 32, 23+32, 23+32 # update hash - -.endm - - # - # Compute update single hash - # -.macro ppc_update_hash_1x - vxor 28, 28, 0 - - vxor 19, 19, 19 - - vpmsumd 22, 3, 28 # L - vpmsumd 23, 4, 28 # M - vpmsumd 24, 5, 28 # H - - vpmsumd 27, 22, 2 # reduction - - vsldoi 25, 23, 19, 8 # mL - vsldoi 26, 19, 23, 8 # mH - vxor 22, 22, 25 # LL + LL - vxor 24, 24, 26 # HH + HH - - vsldoi 22, 22, 22, 8 # swap - vxor 22, 22, 27 - - vsldoi 20, 22, 22, 8 # swap - vpmsumd 22, 22, 2 # reduction - vxor 20, 20, 24 - vxor 22, 22, 20 - - vmr 0, 22 # update hash - -.endm - -.macro SAVE_REGS - stdu 1,-640(1) - mflr 0 - - std 14,112(1) - std 15,120(1) - std 16,128(1) - std 17,136(1) - std 18,144(1) - std 19,152(1) - std 20,160(1) - std 21,168(1) - li 9, 256 - stvx 20, 9, 1 - addi 9, 9, 16 - stvx 21, 9, 1 - addi 9, 9, 16 - stvx 22, 9, 1 - addi 9, 9, 16 - stvx 23, 9, 1 - addi 9, 9, 16 - stvx 24, 9, 1 - addi 9, 9, 16 - stvx 25, 9, 1 - addi 9, 9, 16 - stvx 26, 9, 1 - addi 9, 9, 16 - stvx 27, 9, 1 - addi 9, 9, 16 - stvx 28, 9, 1 - addi 9, 9, 16 - stvx 29, 9, 1 - addi 9, 9, 16 - stvx 30, 9, 1 - addi 9, 9, 16 - stvx 31, 9, 1 - stxv 14, 464(1) - stxv 15, 480(1) - stxv 16, 496(1) - stxv 17, 512(1) - stxv 18, 528(1) - stxv 19, 544(1) - stxv 20, 560(1) - stxv 21, 576(1) - stxv 22, 592(1) - std 0, 656(1) -.endm - -.macro RESTORE_REGS - lxv 14, 464(1) - lxv 15, 480(1) - lxv 16, 496(1) - lxv 17, 512(1) - lxv 18, 528(1) - lxv 19, 544(1) - lxv 20, 560(1) - lxv 21, 576(1) - lxv 22, 592(1) - li 9, 256 - lvx 20, 9, 1 - addi 9, 9, 16 - lvx 21, 9, 1 - addi 9, 9, 16 - lvx 22, 9, 1 - addi 9, 9, 16 - lvx 23, 9, 1 - addi 9, 9, 16 - lvx 24, 9, 1 - addi 9, 9, 16 - lvx 25, 9, 1 - addi 9, 9, 16 - lvx 26, 9, 1 - addi 9, 9, 16 - lvx 27, 9, 1 - addi 9, 9, 16 - lvx 28, 9, 1 - addi 9, 9, 16 - lvx 29, 9, 1 - addi 9, 9, 16 - lvx 30, 9, 1 - addi 9, 9, 16 - lvx 31, 9, 1 - - ld 0, 656(1) - ld 14,112(1) - ld 15,120(1) - ld 16,128(1) - ld 17,136(1) - ld 18,144(1) - ld 19,152(1) - ld 20,160(1) - ld 21,168(1) - - mtlr 0 - addi 1, 1, 640 -.endm - -.macro LOAD_HASH_TABLE - # Load Xi - lxvb16x 32, 0, 8 # load Xi - - # load Hash - h^4, h^3, h^2, h - li 10, 32 - lxvd2x 2+32, 10, 8 # H Poli - li 10, 48 - lxvd2x 3+32, 10, 8 # Hl - li 10, 64 - lxvd2x 4+32, 10, 8 # H - li 10, 80 - lxvd2x 5+32, 10, 8 # Hh - - li 10, 96 - lxvd2x 6+32, 10, 8 # H^2l - li 10, 112 - lxvd2x 7+32, 10, 8 # H^2 - li 10, 128 - lxvd2x 8+32, 10, 8 # H^2h - - li 10, 144 - lxvd2x 9+32, 10, 8 # H^3l - li 10, 160 - lxvd2x 10+32, 10, 8 # H^3 - li 10, 176 - lxvd2x 11+32, 10, 8 # H^3h - - li 10, 192 - lxvd2x 12+32, 10, 8 # H^4l - li 10, 208 - lxvd2x 13+32, 10, 8 # H^4 - li 10, 224 - lxvd2x 14+32, 10, 8 # H^4h -.endm - - # - # aes_p10_gcm_encrypt (const void *inp, void *out, size_t len, - # const char *rk, unsigned char iv[16], void *Xip); - # - # r3 - inp - # r4 - out - # r5 - len - # r6 - AES round keys - # r7 - iv and other data - # r8 - Xi, HPoli, hash keys - # - # rounds is at offset 240 in rk - # Xi is at 0 in gcm_table (Xip). - # -.global aes_p10_gcm_encrypt -.align 5 -aes_p10_gcm_encrypt: - - SAVE_REGS - - LOAD_HASH_TABLE - - # initialize ICB: GHASH( IV ), IV - r7 - lxvb16x 30+32, 0, 7 # load IV - v30 - - mr 12, 5 # length - li 11, 0 # block index - - # counter 1 - vxor 31, 31, 31 - vspltisb 22, 1 - vsldoi 31, 31, 22,1 # counter 1 - - # load round key to VSR - lxv 0, 0(6) - lxv 1, 0x10(6) - lxv 2, 0x20(6) - lxv 3, 0x30(6) - lxv 4, 0x40(6) - lxv 5, 0x50(6) - lxv 6, 0x60(6) - lxv 7, 0x70(6) - lxv 8, 0x80(6) - lxv 9, 0x90(6) - lxv 10, 0xa0(6) - - # load rounds - 10 (128), 12 (192), 14 (256) - lwz 9,240(6) - - # - # vxor state, state, w # addroundkey - xxlor 32+29, 0, 0 - vxor 15, 30, 29 # IV + round key - add round key 0 - - cmpdi 9, 10 - beq Loop_aes_gcm_8x - - # load 2 more round keys (v11, v12) - lxv 11, 0xb0(6) - lxv 12, 0xc0(6) - - cmpdi 9, 12 - beq Loop_aes_gcm_8x - - # load 2 more round keys (v11, v12, v13, v14) - lxv 13, 0xd0(6) - lxv 14, 0xe0(6) - cmpdi 9, 14 - beq Loop_aes_gcm_8x - - b aes_gcm_out - -.align 5 -Loop_aes_gcm_8x: - mr 14, 3 - mr 9, 4 - - # - # check partial block - # -Continue_partial_check: - ld 15, 56(7) - cmpdi 15, 0 - beq Continue - bgt Final_block - cmpdi 15, 16 - blt Final_block - -Continue: - # n blcoks - li 10, 128 - divdu 10, 12, 10 # n 128 bytes-blocks - cmpdi 10, 0 - beq Loop_last_block - - vaddudm 30, 30, 31 # IV + counter - vxor 16, 30, 29 - vaddudm 30, 30, 31 - vxor 17, 30, 29 - vaddudm 30, 30, 31 - vxor 18, 30, 29 - vaddudm 30, 30, 31 - vxor 19, 30, 29 - vaddudm 30, 30, 31 - vxor 20, 30, 29 - vaddudm 30, 30, 31 - vxor 21, 30, 29 - vaddudm 30, 30, 31 - vxor 22, 30, 29 - - mtctr 10 - - li 15, 16 - li 16, 32 - li 17, 48 - li 18, 64 - li 19, 80 - li 20, 96 - li 21, 112 - - lwz 10, 240(6) - -Loop_8x_block: - - lxvb16x 15, 0, 14 # load block - lxvb16x 16, 15, 14 # load block - lxvb16x 17, 16, 14 # load block - lxvb16x 18, 17, 14 # load block - lxvb16x 19, 18, 14 # load block - lxvb16x 20, 19, 14 # load block - lxvb16x 21, 20, 14 # load block - lxvb16x 22, 21, 14 # load block - addi 14, 14, 128 - - Loop_aes_middle8x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_next_ghash - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_next_ghash - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_next_ghash - b aes_gcm_out - -Do_next_ghash: - - # - # last round - vcipherlast 15, 15, 23 - vcipherlast 16, 16, 23 - - xxlxor 47, 47, 15 - stxvb16x 47, 0, 9 # store output - xxlxor 48, 48, 16 - stxvb16x 48, 15, 9 # store output - - vcipherlast 17, 17, 23 - vcipherlast 18, 18, 23 - - xxlxor 49, 49, 17 - stxvb16x 49, 16, 9 # store output - xxlxor 50, 50, 18 - stxvb16x 50, 17, 9 # store output - - vcipherlast 19, 19, 23 - vcipherlast 20, 20, 23 - - xxlxor 51, 51, 19 - stxvb16x 51, 18, 9 # store output - xxlxor 52, 52, 20 - stxvb16x 52, 19, 9 # store output - - vcipherlast 21, 21, 23 - vcipherlast 22, 22, 23 - - xxlxor 53, 53, 21 - stxvb16x 53, 20, 9 # store output - xxlxor 54, 54, 22 - stxvb16x 54, 21, 9 # store output - - addi 9, 9, 128 - - # ghash here - ppc_aes_gcm_ghash2_4x - - xxlor 27+32, 0, 0 - vaddudm 30, 30, 31 # IV + counter - vmr 29, 30 - vxor 15, 30, 27 # add round key - vaddudm 30, 30, 31 - vxor 16, 30, 27 - vaddudm 30, 30, 31 - vxor 17, 30, 27 - vaddudm 30, 30, 31 - vxor 18, 30, 27 - vaddudm 30, 30, 31 - vxor 19, 30, 27 - vaddudm 30, 30, 31 - vxor 20, 30, 27 - vaddudm 30, 30, 31 - vxor 21, 30, 27 - vaddudm 30, 30, 31 - vxor 22, 30, 27 - - addi 12, 12, -128 - addi 11, 11, 128 - - bdnz Loop_8x_block - - vmr 30, 29 - stxvb16x 30+32, 0, 7 # update IV - -Loop_last_block: - cmpdi 12, 0 - beq aes_gcm_out - - # loop last few blocks - li 10, 16 - divdu 10, 12, 10 - - mtctr 10 - - lwz 10, 240(6) - - cmpdi 12, 16 - blt Final_block - -Next_rem_block: - lxvb16x 15, 0, 14 # load block - - Loop_aes_middle_1x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_next_1x - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_next_1x - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_next_1x - -Do_next_1x: - vcipherlast 15, 15, 23 - - xxlxor 47, 47, 15 - stxvb16x 47, 0, 9 # store output - addi 14, 14, 16 - addi 9, 9, 16 - - vmr 28, 15 - ppc_update_hash_1x - - addi 12, 12, -16 - addi 11, 11, 16 - xxlor 19+32, 0, 0 - vaddudm 30, 30, 31 # IV + counter - vxor 15, 30, 19 # add round key - - bdnz Next_rem_block - - li 15, 0 - std 15, 56(7) # clear partial? - stxvb16x 30+32, 0, 7 # update IV - cmpdi 12, 0 - beq aes_gcm_out - -Final_block: - lwz 10, 240(6) - Loop_aes_middle_1x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_final_1x - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_final_1x - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_final_1x - -Do_final_1x: - vcipherlast 15, 15, 23 - - # check partial block - li 21, 0 # encrypt - ld 15, 56(7) # partial? - cmpdi 15, 0 - beq Normal_block - bl Do_partial_block - - cmpdi 12, 0 - ble aes_gcm_out - - b Continue_partial_check - -Normal_block: - lxvb16x 15, 0, 14 # load last block - xxlxor 47, 47, 15 - - # create partial block mask - li 15, 16 - sub 15, 15, 12 # index to the mask - - vspltisb 16, -1 # first 16 bytes - 0xffff...ff - vspltisb 17, 0 # second 16 bytes - 0x0000...00 - li 10, 192 - stvx 16, 10, 1 - addi 10, 10, 16 - stvx 17, 10, 1 - - addi 10, 1, 192 - lxvb16x 16, 15, 10 # load partial block mask - xxland 47, 47, 16 - - vmr 28, 15 - ppc_update_hash_1x - - # * should store only the remaining bytes. - bl Write_partial_block - - stxvb16x 30+32, 0, 7 # update IV - std 12, 56(7) # update partial? - li 16, 16 - - stxvb16x 32, 0, 8 # write out Xi - stxvb16x 32, 16, 8 # write out Xi - b aes_gcm_out - - # - # Compute data mask - # -.macro GEN_MASK _mask _start _end - vspltisb 16, -1 # first 16 bytes - 0xffff...ff - vspltisb 17, 0 # second 16 bytes - 0x0000...00 - li 10, 192 - stxvb16x 17+32, 10, 1 - add 10, 10, \_start - stxvb16x 16+32, 10, 1 - add 10, 10, \_end - stxvb16x 17+32, 10, 1 - - addi 10, 1, 192 - lxvb16x \_mask, 0, 10 # load partial block mask -.endm - - # - # Handle multiple partial blocks for encrypt and decrypt - # operations. - # -Do_partial_block: - add 17, 15, 5 - cmpdi 17, 16 - bgt Big_block - GEN_MASK 18, 15, 5 - b _Partial -Big_block: - li 16, 16 - GEN_MASK 18, 15, 16 - -_Partial: - lxvb16x 17+32, 0, 14 # load last block - sldi 16, 15, 3 - mtvsrdd 32+16, 0, 16 - vsro 17, 17, 16 - xxlxor 47, 47, 17+32 - xxland 47, 47, 18 - - vxor 0, 0, 0 # clear Xi - vmr 28, 15 - - cmpdi 21, 0 # encrypt/decrypt ops? - beq Skip_decrypt - xxland 32+28, 32+17, 18 - -Skip_decrypt: - - ppc_update_hash_1x - - li 16, 16 - lxvb16x 32+29, 16, 8 - vxor 0, 0, 29 - stxvb16x 32, 0, 8 # save Xi - stxvb16x 32, 16, 8 # save Xi - - # store partial block - # loop the rest of the stream if any - sldi 16, 15, 3 - mtvsrdd 32+16, 0, 16 - vslo 15, 15, 16 - #stxvb16x 15+32, 0, 9 # last block - - li 16, 16 - sub 17, 16, 15 # 16 - partial - - add 16, 15, 5 - cmpdi 16, 16 - bgt Larger_16 - mr 17, 5 -Larger_16: - - # write partial - li 10, 192 - stxvb16x 15+32, 10, 1 # save current block - - addi 10, 9, -1 - addi 16, 1, 191 - mtctr 17 # move partial byte count - -Write_last_partial: - lbzu 18, 1(16) - stbu 18, 1(10) - bdnz Write_last_partial - # Complete loop partial - - add 14, 14, 17 - add 9, 9, 17 - sub 12, 12, 17 - add 11, 11, 17 - - add 15, 15, 5 - cmpdi 15, 16 - blt Save_partial - - vaddudm 30, 30, 31 - stxvb16x 30+32, 0, 7 # update IV - xxlor 32+29, 0, 0 - vxor 15, 30, 29 # IV + round key - add round key 0 - li 15, 0 - std 15, 56(7) # partial done - clear - b Partial_done -Save_partial: - std 15, 56(7) # partial - -Partial_done: - blr - - # - # Write partial block - # r9 - output - # r12 - remaining bytes - # v15 - partial input data - # -Write_partial_block: - li 10, 192 - stxvb16x 15+32, 10, 1 # last block - - addi 10, 9, -1 - addi 16, 1, 191 - - mtctr 12 # remaining bytes - li 15, 0 - -Write_last_byte: - lbzu 14, 1(16) - stbu 14, 1(10) - bdnz Write_last_byte - blr - -aes_gcm_out: - # out = state - stxvb16x 32, 0, 8 # write out Xi - add 3, 11, 12 # return count - - RESTORE_REGS - blr - - # - # 8x Decrypt - # -.global aes_p10_gcm_decrypt -.align 5 -aes_p10_gcm_decrypt: - - SAVE_REGS - - LOAD_HASH_TABLE - - # initialize ICB: GHASH( IV ), IV - r7 - lxvb16x 30+32, 0, 7 # load IV - v30 - - mr 12, 5 # length - li 11, 0 # block index - - # counter 1 - vxor 31, 31, 31 - vspltisb 22, 1 - vsldoi 31, 31, 22,1 # counter 1 - - # load round key to VSR - lxv 0, 0(6) - lxv 1, 0x10(6) - lxv 2, 0x20(6) - lxv 3, 0x30(6) - lxv 4, 0x40(6) - lxv 5, 0x50(6) - lxv 6, 0x60(6) - lxv 7, 0x70(6) - lxv 8, 0x80(6) - lxv 9, 0x90(6) - lxv 10, 0xa0(6) - - # load rounds - 10 (128), 12 (192), 14 (256) - lwz 9,240(6) - - # - # vxor state, state, w # addroundkey - xxlor 32+29, 0, 0 - vxor 15, 30, 29 # IV + round key - add round key 0 - - cmpdi 9, 10 - beq Loop_aes_gcm_8x_dec - - # load 2 more round keys (v11, v12) - lxv 11, 0xb0(6) - lxv 12, 0xc0(6) - - cmpdi 9, 12 - beq Loop_aes_gcm_8x_dec - - # load 2 more round keys (v11, v12, v13, v14) - lxv 13, 0xd0(6) - lxv 14, 0xe0(6) - cmpdi 9, 14 - beq Loop_aes_gcm_8x_dec - - b aes_gcm_out - -.align 5 -Loop_aes_gcm_8x_dec: - mr 14, 3 - mr 9, 4 - - # - # check partial block - # -Continue_partial_check_dec: - ld 15, 56(7) - cmpdi 15, 0 - beq Continue_dec - bgt Final_block_dec - cmpdi 15, 16 - blt Final_block_dec - -Continue_dec: - # n blcoks - li 10, 128 - divdu 10, 12, 10 # n 128 bytes-blocks - cmpdi 10, 0 - beq Loop_last_block_dec - - vaddudm 30, 30, 31 # IV + counter - vxor 16, 30, 29 - vaddudm 30, 30, 31 - vxor 17, 30, 29 - vaddudm 30, 30, 31 - vxor 18, 30, 29 - vaddudm 30, 30, 31 - vxor 19, 30, 29 - vaddudm 30, 30, 31 - vxor 20, 30, 29 - vaddudm 30, 30, 31 - vxor 21, 30, 29 - vaddudm 30, 30, 31 - vxor 22, 30, 29 - - mtctr 10 - - li 15, 16 - li 16, 32 - li 17, 48 - li 18, 64 - li 19, 80 - li 20, 96 - li 21, 112 - - lwz 10, 240(6) - -Loop_8x_block_dec: - - lxvb16x 15, 0, 14 # load block - lxvb16x 16, 15, 14 # load block - lxvb16x 17, 16, 14 # load block - lxvb16x 18, 17, 14 # load block - lxvb16x 19, 18, 14 # load block - lxvb16x 20, 19, 14 # load block - lxvb16x 21, 20, 14 # load block - lxvb16x 22, 21, 14 # load block - addi 14, 14, 128 - - Loop_aes_middle8x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_next_ghash_dec - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_next_ghash_dec - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 16, 16, 23 - vcipher 17, 17, 23 - vcipher 18, 18, 23 - vcipher 19, 19, 23 - vcipher 20, 20, 23 - vcipher 21, 21, 23 - vcipher 22, 22, 23 - - vcipher 15, 15, 24 - vcipher 16, 16, 24 - vcipher 17, 17, 24 - vcipher 18, 18, 24 - vcipher 19, 19, 24 - vcipher 20, 20, 24 - vcipher 21, 21, 24 - vcipher 22, 22, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_next_ghash_dec - b aes_gcm_out - -Do_next_ghash_dec: - - # - # last round - vcipherlast 15, 15, 23 - vcipherlast 16, 16, 23 - - xxlxor 47, 47, 15 - stxvb16x 47, 0, 9 # store output - xxlxor 48, 48, 16 - stxvb16x 48, 15, 9 # store output - - vcipherlast 17, 17, 23 - vcipherlast 18, 18, 23 - - xxlxor 49, 49, 17 - stxvb16x 49, 16, 9 # store output - xxlxor 50, 50, 18 - stxvb16x 50, 17, 9 # store output - - vcipherlast 19, 19, 23 - vcipherlast 20, 20, 23 - - xxlxor 51, 51, 19 - stxvb16x 51, 18, 9 # store output - xxlxor 52, 52, 20 - stxvb16x 52, 19, 9 # store output - - vcipherlast 21, 21, 23 - vcipherlast 22, 22, 23 - - xxlxor 53, 53, 21 - stxvb16x 53, 20, 9 # store output - xxlxor 54, 54, 22 - stxvb16x 54, 21, 9 # store output - - addi 9, 9, 128 - - xxlor 15+32, 15, 15 - xxlor 16+32, 16, 16 - xxlor 17+32, 17, 17 - xxlor 18+32, 18, 18 - xxlor 19+32, 19, 19 - xxlor 20+32, 20, 20 - xxlor 21+32, 21, 21 - xxlor 22+32, 22, 22 - - # ghash here - ppc_aes_gcm_ghash2_4x - - xxlor 27+32, 0, 0 - vaddudm 30, 30, 31 # IV + counter - vmr 29, 30 - vxor 15, 30, 27 # add round key - vaddudm 30, 30, 31 - vxor 16, 30, 27 - vaddudm 30, 30, 31 - vxor 17, 30, 27 - vaddudm 30, 30, 31 - vxor 18, 30, 27 - vaddudm 30, 30, 31 - vxor 19, 30, 27 - vaddudm 30, 30, 31 - vxor 20, 30, 27 - vaddudm 30, 30, 31 - vxor 21, 30, 27 - vaddudm 30, 30, 31 - vxor 22, 30, 27 - - addi 12, 12, -128 - addi 11, 11, 128 - - bdnz Loop_8x_block_dec - - vmr 30, 29 - stxvb16x 30+32, 0, 7 # update IV - -Loop_last_block_dec: - cmpdi 12, 0 - beq aes_gcm_out - - # loop last few blocks - li 10, 16 - divdu 10, 12, 10 - - mtctr 10 - - lwz 10, 240(6) - - cmpdi 12, 16 - blt Final_block_dec - -Next_rem_block_dec: - lxvb16x 15, 0, 14 # load block - - Loop_aes_middle_1x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_next_1x_dec - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_next_1x_dec - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_next_1x_dec - -Do_next_1x_dec: - vcipherlast 15, 15, 23 - - xxlxor 47, 47, 15 - stxvb16x 47, 0, 9 # store output - addi 14, 14, 16 - addi 9, 9, 16 - - xxlor 28+32, 15, 15 - #vmr 28, 15 - ppc_update_hash_1x - - addi 12, 12, -16 - addi 11, 11, 16 - xxlor 19+32, 0, 0 - vaddudm 30, 30, 31 # IV + counter - vxor 15, 30, 19 # add round key - - bdnz Next_rem_block_dec - - li 15, 0 - std 15, 56(7) # clear partial? - stxvb16x 30+32, 0, 7 # update IV - cmpdi 12, 0 - beq aes_gcm_out - -Final_block_dec: - lwz 10, 240(6) - Loop_aes_middle_1x - - xxlor 23+32, 10, 10 - - cmpdi 10, 10 - beq Do_final_1x_dec - - # 192 bits - xxlor 24+32, 11, 11 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 12, 12 - - cmpdi 10, 12 - beq Do_final_1x_dec - - # 256 bits - xxlor 24+32, 13, 13 - - vcipher 15, 15, 23 - vcipher 15, 15, 24 - - xxlor 23+32, 14, 14 - - cmpdi 10, 14 - beq Do_final_1x_dec - -Do_final_1x_dec: - vcipherlast 15, 15, 23 - - # check partial block - li 21, 1 # decrypt - ld 15, 56(7) # partial? - cmpdi 15, 0 - beq Normal_block_dec - bl Do_partial_block - cmpdi 12, 0 - ble aes_gcm_out - - b Continue_partial_check_dec - -Normal_block_dec: - lxvb16x 15, 0, 14 # load last block - xxlxor 47, 47, 15 - - # create partial block mask - li 15, 16 - sub 15, 15, 12 # index to the mask - - vspltisb 16, -1 # first 16 bytes - 0xffff...ff - vspltisb 17, 0 # second 16 bytes - 0x0000...00 - li 10, 192 - stvx 16, 10, 1 - addi 10, 10, 16 - stvx 17, 10, 1 - - addi 10, 1, 192 - lxvb16x 16, 15, 10 # load partial block mask - xxland 47, 47, 16 - - xxland 32+28, 15, 16 - #vmr 28, 15 - ppc_update_hash_1x - - # * should store only the remaining bytes. - bl Write_partial_block - - stxvb16x 30+32, 0, 7 # update IV - std 12, 56(7) # update partial? - li 16, 16 - - stxvb16x 32, 0, 8 # write out Xi - stxvb16x 32, 16, 8 # write out Xi - b aes_gcm_out diff --git a/arch/powerpc/crypto/ppc-xlate.pl b/arch/powerpc/crypto/ppc-xlate.pl deleted file mode 100644 index 23cca703ce29..000000000000 --- a/arch/powerpc/crypto/ppc-xlate.pl +++ /dev/null @@ -1,229 +0,0 @@ -#!/usr/bin/env perl -# SPDX-License-Identifier: GPL-2.0 - -# PowerPC assembler distiller by <appro>. - -my $flavour = shift; -my $output = shift; -open STDOUT,">$output" || die "can't open $output: $!"; - -my %GLOBALS; -my $dotinlocallabels=($flavour=~/linux/)?1:0; - -################################################################ -# directives which need special treatment on different platforms -################################################################ -my $globl = sub { - my $junk = shift; - my $name = shift; - my $global = \$GLOBALS{$name}; - my $ret; - - $name =~ s|^[\.\_]||; - - SWITCH: for ($flavour) { - /aix/ && do { $name = ".$name"; - last; - }; - /osx/ && do { $name = "_$name"; - last; - }; - /linux/ - && do { $ret = "_GLOBAL($name)"; - last; - }; - } - - $ret = ".globl $name\nalign 5\n$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; $name =~ s|^[\.\_]||; - my $ret = ".size $name,.-".($flavour=~/64$/?".":"").$name; - $ret .= "\n.size .$name,.-.$name" if ($flavour=~/64$/); - $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 =~ /linux-ppc64le/); -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 $vadduqm = sub { vcrypto_op(@_, 256); }; - -my $mtsle = sub { - my ($f, $arg) = @_; - " .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2); -}; - -print "#include <asm/ppc_asm.h>\n" if $flavour =~ /linux/; - -while($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|\b\.L(\w+)|L$1|g; # common denominator for Locallabel - $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels); - } - - { - $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; |