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crypto: vmx - Add support for VMS instructions by ASM
OpenSSL implements optimized ASM algorithms which support VMX instructions on Power 8 CPU. These scripts generate an endian-agnostic ASM implementation in order to support both big and little-endian. - aesp8-ppc.pl: implements suport for AES instructions implemented by POWER8 processor. - ghashp8-ppc.pl: implements support for GHASH for Power8. - ppc-xlate.pl: ppc assembler distiller. These code has been adopted from OpenSSL project in collaboration with the original author (Andy Polyakov <appro@openssl.org>). Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Leonidas S. Barbosa
Herbert Xu
parent
cc333cd68d
commit
5c380d623e
3 changed files with 2400 additions and 0 deletions
1940
drivers/crypto/vmx/aesp8-ppc.pl
Executable file
1940
drivers/crypto/vmx/aesp8-ppc.pl
Executable file
File diff suppressed because it is too large
Load diff
234
drivers/crypto/vmx/ghashp8-ppc.pl
Executable file
234
drivers/crypto/vmx/ghashp8-ppc.pl
Executable file
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@ -0,0 +1,234 @@
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#!/usr/bin/env perl
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project. The module is, however, dual licensed under OpenSSL and
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# CRYPTOGAMS licenses depending on where you obtain it. For further
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# details see http://www.openssl.org/~appro/cryptogams/.
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# ====================================================================
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#
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# GHASH for for PowerISA v2.07.
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#
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# July 2014
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#
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# Accurate performance measurements are problematic, because it's
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# always virtualized setup with possibly throttled processor.
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# Relative comparison is therefore more informative. This initial
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# version is ~2.1x slower than hardware-assisted AES-128-CTR, ~12x
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# faster than "4-bit" integer-only compiler-generated 64-bit code.
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# "Initial version" means that there is room for futher improvement.
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$flavour=shift;
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$output =shift;
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if ($flavour =~ /64/) {
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$SIZE_T=8;
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$LRSAVE=2*$SIZE_T;
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$STU="stdu";
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$POP="ld";
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$PUSH="std";
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} elsif ($flavour =~ /32/) {
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$SIZE_T=4;
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$LRSAVE=$SIZE_T;
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$STU="stwu";
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$POP="lwz";
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$PUSH="stw";
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} else { die "nonsense $flavour"; }
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
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die "can't locate ppc-xlate.pl";
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open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!";
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my ($Xip,$Htbl,$inp,$len)=map("r$_",(3..6)); # argument block
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my ($Xl,$Xm,$Xh,$IN)=map("v$_",(0..3));
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my ($zero,$t0,$t1,$t2,$xC2,$H,$Hh,$Hl,$lemask)=map("v$_",(4..12));
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my $vrsave="r12";
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$code=<<___;
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.machine "any"
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.text
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.globl .gcm_init_p8
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.align 5
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.gcm_init_p8:
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lis r0,0xfff0
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li r8,0x10
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mfspr $vrsave,256
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li r9,0x20
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mtspr 256,r0
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li r10,0x30
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lvx_u $H,0,r4 # load H
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vspltisb $xC2,-16 # 0xf0
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vspltisb $t0,1 # one
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vaddubm $xC2,$xC2,$xC2 # 0xe0
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vxor $zero,$zero,$zero
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vor $xC2,$xC2,$t0 # 0xe1
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vsldoi $xC2,$xC2,$zero,15 # 0xe1...
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vsldoi $t1,$zero,$t0,1 # ...1
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vaddubm $xC2,$xC2,$xC2 # 0xc2...
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vspltisb $t2,7
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vor $xC2,$xC2,$t1 # 0xc2....01
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vspltb $t1,$H,0 # most significant byte
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vsl $H,$H,$t0 # H<<=1
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vsrab $t1,$t1,$t2 # broadcast carry bit
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vand $t1,$t1,$xC2
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vxor $H,$H,$t1 # twisted H
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vsldoi $H,$H,$H,8 # twist even more ...
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vsldoi $xC2,$zero,$xC2,8 # 0xc2.0
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vsldoi $Hl,$zero,$H,8 # ... and split
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vsldoi $Hh,$H,$zero,8
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stvx_u $xC2,0,r3 # save pre-computed table
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stvx_u $Hl,r8,r3
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stvx_u $H, r9,r3
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stvx_u $Hh,r10,r3
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mtspr 256,$vrsave
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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.size .gcm_init_p8,.-.gcm_init_p8
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.globl .gcm_gmult_p8
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.align 5
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.gcm_gmult_p8:
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lis r0,0xfff8
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li r8,0x10
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mfspr $vrsave,256
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li r9,0x20
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mtspr 256,r0
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li r10,0x30
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lvx_u $IN,0,$Xip # load Xi
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lvx_u $Hl,r8,$Htbl # load pre-computed table
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le?lvsl $lemask,r0,r0
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lvx_u $H, r9,$Htbl
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le?vspltisb $t0,0x07
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lvx_u $Hh,r10,$Htbl
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le?vxor $lemask,$lemask,$t0
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lvx_u $xC2,0,$Htbl
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le?vperm $IN,$IN,$IN,$lemask
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vxor $zero,$zero,$zero
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vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo
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vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi
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vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi
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vpmsumd $t2,$Xl,$xC2 # 1st phase
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vsldoi $t0,$Xm,$zero,8
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vsldoi $t1,$zero,$Xm,8
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vxor $Xl,$Xl,$t0
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vxor $Xh,$Xh,$t1
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vsldoi $Xl,$Xl,$Xl,8
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vxor $Xl,$Xl,$t2
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vsldoi $t1,$Xl,$Xl,8 # 2nd phase
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vpmsumd $Xl,$Xl,$xC2
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vxor $t1,$t1,$Xh
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vxor $Xl,$Xl,$t1
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le?vperm $Xl,$Xl,$Xl,$lemask
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stvx_u $Xl,0,$Xip # write out Xi
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mtspr 256,$vrsave
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,2,0
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.long 0
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.size .gcm_gmult_p8,.-.gcm_gmult_p8
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.globl .gcm_ghash_p8
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.align 5
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.gcm_ghash_p8:
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lis r0,0xfff8
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li r8,0x10
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mfspr $vrsave,256
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li r9,0x20
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mtspr 256,r0
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li r10,0x30
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lvx_u $Xl,0,$Xip # load Xi
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lvx_u $Hl,r8,$Htbl # load pre-computed table
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le?lvsl $lemask,r0,r0
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lvx_u $H, r9,$Htbl
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le?vspltisb $t0,0x07
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lvx_u $Hh,r10,$Htbl
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le?vxor $lemask,$lemask,$t0
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lvx_u $xC2,0,$Htbl
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le?vperm $Xl,$Xl,$Xl,$lemask
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vxor $zero,$zero,$zero
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lvx_u $IN,0,$inp
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addi $inp,$inp,16
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subi $len,$len,16
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le?vperm $IN,$IN,$IN,$lemask
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vxor $IN,$IN,$Xl
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b Loop
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.align 5
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Loop:
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subic $len,$len,16
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vpmsumd $Xl,$IN,$Hl # H.lo·Xi.lo
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subfe. r0,r0,r0 # borrow?-1:0
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vpmsumd $Xm,$IN,$H # H.hi·Xi.lo+H.lo·Xi.hi
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and r0,r0,$len
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vpmsumd $Xh,$IN,$Hh # H.hi·Xi.hi
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add $inp,$inp,r0
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vpmsumd $t2,$Xl,$xC2 # 1st phase
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vsldoi $t0,$Xm,$zero,8
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vsldoi $t1,$zero,$Xm,8
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vxor $Xl,$Xl,$t0
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vxor $Xh,$Xh,$t1
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vsldoi $Xl,$Xl,$Xl,8
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vxor $Xl,$Xl,$t2
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lvx_u $IN,0,$inp
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addi $inp,$inp,16
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vsldoi $t1,$Xl,$Xl,8 # 2nd phase
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vpmsumd $Xl,$Xl,$xC2
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le?vperm $IN,$IN,$IN,$lemask
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vxor $t1,$t1,$Xh
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vxor $IN,$IN,$t1
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vxor $IN,$IN,$Xl
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beq Loop # did $len-=16 borrow?
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vxor $Xl,$Xl,$t1
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le?vperm $Xl,$Xl,$Xl,$lemask
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stvx_u $Xl,0,$Xip # write out Xi
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mtspr 256,$vrsave
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blr
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.long 0
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.byte 0,12,0x14,0,0,0,4,0
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.long 0
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.size .gcm_ghash_p8,.-.gcm_ghash_p8
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.asciz "GHASH for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
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.align 2
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___
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foreach (split("\n",$code)) {
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if ($flavour =~ /le$/o) { # little-endian
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s/le\?//o or
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s/be\?/#be#/o;
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} else {
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s/le\?/#le#/o or
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s/be\?//o;
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}
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print $_,"\n";
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}
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close STDOUT; # enforce flush
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226
drivers/crypto/vmx/ppc-xlate.pl
Executable file
226
drivers/crypto/vmx/ppc-xlate.pl
Executable file
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@ -0,0 +1,226 @@
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#!/usr/bin/env perl
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# PowerPC assembler distiller by <appro>.
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my $flavour = shift;
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my $output = shift;
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open STDOUT,">$output" || die "can't open $output: $!";
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my %GLOBALS;
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my $dotinlocallabels=($flavour=~/linux/)?1:0;
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################################################################
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# directives which need special treatment on different platforms
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################################################################
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my $globl = sub {
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my $junk = shift;
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my $name = shift;
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my $global = \$GLOBALS{$name};
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my $ret;
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$name =~ s|^[\.\_]||;
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SWITCH: for ($flavour) {
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/aix/ && do { $name = ".$name";
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last;
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};
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/osx/ && do { $name = "_$name";
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last;
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};
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/linux.*(32|64le)/
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&& do { $ret .= ".globl $name\n";
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$ret .= ".type $name,\@function";
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last;
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};
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/linux.*64/ && do { $ret .= ".globl $name\n";
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$ret .= ".type $name,\@function\n";
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$ret .= ".section \".opd\",\"aw\"\n";
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$ret .= ".align 3\n";
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$ret .= "$name:\n";
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$ret .= ".quad .$name,.TOC.\@tocbase,0\n";
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$ret .= ".previous\n";
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$name = ".$name";
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last;
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};
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}
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$ret = ".globl $name" if (!$ret);
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$$global = $name;
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$ret;
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};
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my $text = sub {
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my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
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$ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
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$ret;
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};
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my $machine = sub {
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my $junk = shift;
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my $arch = shift;
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if ($flavour =~ /osx/)
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{ $arch =~ s/\"//g;
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$arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
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}
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".machine $arch";
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};
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my $size = sub {
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if ($flavour =~ /linux/)
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{ shift;
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my $name = shift; $name =~ s|^[\.\_]||;
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my $ret = ".size $name,.-".($flavour=~/64$/?".":"").$name;
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$ret .= "\n.size .$name,.-.$name" if ($flavour=~/64$/);
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$ret;
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}
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else
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{ ""; }
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};
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my $asciz = sub {
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shift;
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my $line = join(",",@_);
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if ($line =~ /^"(.*)"$/)
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{ ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
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else
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{ ""; }
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};
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my $quad = sub {
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shift;
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my @ret;
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my ($hi,$lo);
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for (@_) {
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if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
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{ $hi=$1?"0x$1":"0"; $lo="0x$2"; }
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elsif (/^([0-9]+)$/o)
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{ $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl
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else
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{ $hi=undef; $lo=$_; }
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if (defined($hi))
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{ push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); }
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else
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{ push(@ret,".quad $lo"); }
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}
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join("\n",@ret);
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};
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################################################################
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# simplified mnemonics not handled by at least one assembler
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################################################################
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my $cmplw = sub {
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my $f = shift;
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my $cr = 0; $cr = shift if ($#_>1);
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# Some out-of-date 32-bit GNU assembler just can't handle cmplw...
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($flavour =~ /linux.*32/) ?
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" .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 :
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" cmplw ".join(',',$cr,@_);
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};
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my $bdnz = sub {
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my $f = shift;
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my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint
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" bc $bo,0,".shift;
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} if ($flavour!~/linux/);
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my $bltlr = sub {
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my $f = shift;
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my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
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($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
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" .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 :
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" bclr $bo,0";
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};
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my $bnelr = sub {
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my $f = shift;
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my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
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($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
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" .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 :
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" bclr $bo,2";
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};
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my $beqlr = sub {
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my $f = shift;
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my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
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($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
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" .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 :
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" bclr $bo,2";
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};
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# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
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# arguments is 64, with "operand out of range" error.
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my $extrdi = sub {
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my ($f,$ra,$rs,$n,$b) = @_;
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$b = ($b+$n)&63; $n = 64-$n;
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" rldicl $ra,$rs,$b,$n";
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};
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my $vmr = sub {
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my ($f,$vx,$vy) = @_;
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" vor $vx,$vy,$vy";
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};
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# PowerISA 2.06 stuff
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sub vsxmem_op {
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my ($f, $vrt, $ra, $rb, $op) = @_;
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" .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1);
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}
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# made-up unaligned memory reference AltiVec/VMX instructions
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my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x
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my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x
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my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx
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my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx
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my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x
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my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x
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# PowerISA 2.07 stuff
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sub vcrypto_op {
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my ($f, $vrt, $vra, $vrb, $op) = @_;
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" .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
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}
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my $vcipher = sub { vcrypto_op(@_, 1288); };
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my $vcipherlast = sub { vcrypto_op(@_, 1289); };
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my $vncipher = sub { vcrypto_op(@_, 1352); };
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my $vncipherlast= sub { vcrypto_op(@_, 1353); };
|
||||
my $vsbox = sub { vcrypto_op(@_, 0, 1480); };
|
||||
my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); };
|
||||
my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); };
|
||||
my $vpmsumb = sub { vcrypto_op(@_, 1032); };
|
||||
my $vpmsumd = sub { vcrypto_op(@_, 1224); };
|
||||
my $vpmsubh = sub { vcrypto_op(@_, 1096); };
|
||||
my $vpmsumw = sub { vcrypto_op(@_, 1160); };
|
||||
my $vaddudm = sub { vcrypto_op(@_, 192); };
|
||||
|
||||
my $mtsle = sub {
|
||||
my ($f, $arg) = @_;
|
||||
" .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
|
||||
};
|
||||
|
||||
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|(^[\.\w]+)\:\s*||;
|
||||
my $label = $1;
|
||||
if ($label) {
|
||||
printf "%s:",($GLOBALS{$label} or $label);
|
||||
printf "\n.localentry\t$GLOBALS{$label},0" if ($GLOBALS{$label} && $flavour =~ /linux.*64le/);
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
$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;
|
||||
Loading…
Reference in a new issue