#
# On side note, z13 enables vector base 2^26 implementation...
-$flavour = shift;
+#
+# January 2019
+#
+# Add vx code path (base 2^26).
+#
+# Copyright IBM Corp. 2019
+# Author: Patrick Steuer <patrick.steuer@de.ibm.com>
+use strict;
+use FindBin qw($Bin);
+use lib "$Bin/../..";
+use perlasm::s390x qw(:DEFAULT :VX AUTOLOAD LABEL);
+
+my $flavour = shift;
+
+my ($z,$SIZE_T);
if ($flavour =~ /3[12]/) {
+ $z=0; # S/390 ABI
$SIZE_T=4;
- $g="";
} else {
+ $z=1; # zSeries ABI
$SIZE_T=8;
- $g="g";
}
+my $output;
while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
-open STDOUT,">$output";
-$sp="%r15";
+my $sp="%r15";
+
+# novx code path ctx layout
+# ---------------------------------
+# var value base off
+# ---------------------------------
+# u64 h[3] hash 2^64 0
+# u32 pad[2]
+# u64 r[2] key 2^64 32
+
+# vx code path ctx layout
+# ---------------------------------
+# var value base off
+# ---------------------------------
+# u32 acc1[5] r^2-acc 2^26 0
+# u32 pad
+# u32 acc2[5] r-acc 2^26 24
+# u32 pad
+# u32 r1[5] r 2^26 48
+# u32 r15[5] 5*r 2^26 68
+# u32 r2[5] r^2 2^26 88
+# u32 r25[5] 5*r^2 2^26 108
+# u32 r4[5] r^4 2^26 128
+# u32 r45[5] 5*r^4 2^26 148
+
+PERLASM_BEGIN($output);
+
+TEXT ();
+
+################
+# static void poly1305_init(void *ctx, const unsigned char key[16])
+{
+my ($ctx,$key)=map("%r$_",(2..3));
+my ($r0,$r1,$r2)=map("%r$_",(9,11,13));
-my ($ctx,$inp,$len,$padbit) = map("%r$_",(2..5));
+sub MUL_RKEY { # r*=key
+my ($d0hi,$d0lo,$d1hi,$d1lo)=map("%r$_",(4..7));
+my ($t0,$t1,$s1)=map("%r$_",(8,10,12));
+
+ lg ("%r0","32($ctx)");
+ lg ("%r1","40($ctx)");
+
+ srlg ($s1,"%r1",2);
+ algr ($s1,"%r1");
+
+ lgr ($d0lo,$r0);
+ lgr ($d1lo,$r1);
+
+ mlgr ($d0hi,"%r0");
+ lgr ($r1,$d1lo);
+ mlgr ($d1hi,$s1);
+
+ mlgr ($t0,"%r1");
+ mlgr ($t1,"%r0");
+
+ algr ($d0lo,$d1lo);
+ lgr ($d1lo,$r2);
+ alcgr ($d0hi,$d1hi);
+ lghi ($d1hi,0);
+
+ algr ($r1,$r0);
+ alcgr ($t1,$t0);
+
+ msgr ($d1lo,$s1);
+ msgr ($r2,"%r0");
+
+ algr ($r1,$d1lo);
+ alcgr ($t1,$d1hi);
+
+ algr ($r1,$d0hi);
+ alcgr ($r2,$t1);
+
+ lghi ($r0,-4);
+ ngr ($r0,$r2);
+ srlg ($t0,$r2,2);
+ algr ($r0,$t0);
+ lghi ($t1,3);
+ ngr ($r2,$t1);
+
+ algr ($r0,$d0lo);
+ alcgr ($r1,$d1hi);
+ alcgr ($r2,$d1hi);
+}
+
+sub ST_R5R { # store r,5*r -> base 2^26
+my @d=map("%r$_",(4..8));
+my @off=@_;
+
+ lgr (@d[2],$r0);
+ lr ("%r1",@d[2]);
+ nilh ("%r1",1023);
+ lgr (@d[3],$r1);
+ lr (@d[0],"%r1");
+ srlg ("%r1",@d[2],52);
+ lgr (@d[4],$r2);
+ srlg ("%r0",@d[2],26);
+ sll (@d[4],24);
+ lr (@d[2],@d[3]);
+ nilh ("%r0",1023);
+ sll (@d[2],12);
+ lr (@d[1],"%r0");
+ &or (@d[2],"%r1");
+ srlg ("%r1",@d[3],40);
+ nilh (@d[2],1023);
+ &or (@d[4],"%r1");
+ srlg (@d[3],@d[3],14);
+ nilh (@d[4],1023);
+ nilh (@d[3],1023);
+
+ stm (@d[0],@d[4],"@off[0]($ctx)");
+ mhi (@d[$_],5) for (0..4);
+ stm (@d[0],@d[4],"@off[1]($ctx)");
+}
-$code.=<<___;
-.text
-
-.globl poly1305_init
-.type poly1305_init,\@function
-.align 16
-poly1305_init:
- lghi %r0,0
- lghi %r1,-1
- stg %r0,0($ctx) # zero hash value
- stg %r0,8($ctx)
- stg %r0,16($ctx)
-
- cl${g}r $inp,%r0
- je .Lno_key
-
- lrvg %r4,0($inp) # load little-endian key
- lrvg %r5,8($inp)
-
- nihl %r1,0xffc0 # 0xffffffc0ffffffff
- srlg %r0,%r1,4 # 0x0ffffffc0fffffff
- srlg %r1,%r1,4
- nill %r1,0xfffc # 0x0ffffffc0ffffffc
-
- ngr %r4,%r0
- ngr %r5,%r1
-
- stg %r4,32($ctx)
- stg %r5,40($ctx)
-
-.Lno_key:
- lghi %r2,0
- br %r14
-.size poly1305_init,.-poly1305_init
-___
+GLOBL ("poly1305_init");
+TYPE ("poly1305_init","\@function");
+ALIGN (16);
+LABEL ("poly1305_init");
+ lghi ("%r0",0);
+ lghi ("%r1",-1);
+ stg ("%r0","0($ctx)"); # zero hash value / acc1
+ stg ("%r0","8($ctx)");
+ stg ("%r0","16($ctx)");
+
+&{$z? \&clgr:\&clr} ($key,"%r0");
+ je (".Ldone");
+
+ lrvg ("%r4","0($key)"); # load little-endian key
+ lrvg ("%r5","8($key)");
+
+ nihl ("%r1",0xffc0); # 0xffffffc0ffffffff
+ srlg ("%r0","%r1",4); # 0x0ffffffc0fffffff
+ srlg ("%r1","%r1",4);
+ nill ("%r1",0xfffc); # 0x0ffffffc0ffffffc
+
+ ngr ("%r4","%r0");
+ ngr ("%r5","%r1");
+
+ stg ("%r4","32($ctx)");
+ stg ("%r5","40($ctx)");
+
+ larl ("%r1","OPENSSL_s390xcap_P");
+ lg ("%r0","16(%r1)");
+ tmhh ("%r0",0x4000); # check for vector facility
+ jz (".Ldone");
+
+ larl ("%r4","poly1305_blocks_vx");
+ larl ("%r5","poly1305_emit_vx");
+
+&{$z? \&stmg:\&stm} ("%r6","%r13","6*$SIZE_T($sp)");
+&{$z? \&stmg:\&stm} ("%r4","%r5","4*$z+228($ctx)");
+
+ lg ($r0,"32($ctx)");
+ lg ($r1,"40($ctx)");
+ lghi ($r2,0);
+
+ ST_R5R (48,68); # store r,5*r
+
+ MUL_RKEY();
+ ST_R5R (88,108); # store r^2,5*r^2
+
+ MUL_RKEY();
+ MUL_RKEY();
+ ST_R5R (128,148); # store r^4,5*r^4
+
+ lghi ("%r0",0);
+ stg ("%r0","24($ctx)"); # zero acc2
+ stg ("%r0","32($ctx)");
+ stg ("%r0","40($ctx)");
+
+&{$z? \&lmg:\&lm} ("%r6","%r13","6*$SIZE_T($sp)");
+ lghi ("%r2",1);
+ br ("%r14");
+
+LABEL (".Ldone");
+ lghi ("%r2",0);
+ br ("%r14");
+SIZE ("poly1305_init",".-poly1305_init");
+}
+
+# VX CODE PATH
{
-my ($d0hi,$d0lo,$d1hi,$d1lo,$t0,$h0,$t1,$h1,$h2) = map("%r$_",(6..14));
-my ($r0,$r1,$s1) = map("%r$_",(0..2));
+my $frame=8*16;
+my @m01=map("%v$_",(0..4));
+my @m23=map("%v$_",(5..9));
+my @tmp=@m23;
+my @acc=map("%v$_",(10..14));
+my @r=map("%v$_",(15..19));
+my @r5=map("%v$_",(20..24));
+my $padvec="%v26";
+my $mask4="%v27";
+my @vperm=map("%v$_",(28..30));
+my $mask="%v31";
+
+sub REDUCE {
+ vesrlg (@tmp[0],@acc[0],26);
+ vesrlg (@tmp[3],@acc[3],26);
+ vn (@acc[0],@acc[0],$mask);
+ vn (@acc[3],@acc[3],$mask);
+ vag (@acc[1],@acc[1],@tmp[0]); # carry 0->1
+ vag (@acc[4],@acc[4],@tmp[3]); # carry 3->4
+
+ vesrlg (@tmp[1],@acc[1],26);
+ vesrlg (@tmp[4],@acc[4],26);
+ vn (@acc[1],@acc[1],$mask);
+ vn (@acc[4],@acc[4],$mask);
+ veslg (@tmp[0],@tmp[4],2);
+ vag (@tmp[4],@tmp[4],@tmp[0]); # h[4]*=5
+ vag (@acc[2],@acc[2],@tmp[1]); # carry 1->2
+ vag (@acc[0],@acc[0],@tmp[4]); # carry 4->0
+
+ vesrlg (@tmp[2],@acc[2],26);
+ vesrlg (@tmp[0],@acc[0],26);
+ vn (@acc[2],@acc[2],$mask);
+ vn (@acc[0],@acc[0],$mask);
+ vag (@acc[3],@acc[3],@tmp[2]); # carry 2->3
+ vag (@acc[1],@acc[1],@tmp[0]); # carry 0->1
+
+ vesrlg (@tmp[3],@acc[3],26);
+ vn (@acc[3],@acc[3],$mask);
+ vag (@acc[4],@acc[4],@tmp[3]); # carry 3->4
+}
-$code.=<<___;
-.globl poly1305_blocks
-.type poly1305_blocks,\@function
-.align 16
-poly1305_blocks:
- srl${g} $len,4 # fixed-up in 64-bit build
- lghi %r0,0
- cl${g}r $len,%r0
- je .Lno_data
+################
+# static void poly1305_blocks_vx(void *ctx, const unsigned char *inp,
+# size_t len, u32 padbit)
+{
+my ($ctx,$inp,$len) = map("%r$_",(2..4));
+my $padbit="%r0";
+
+GLOBL ("poly1305_blocks_vx");
+TYPE ("poly1305_blocks_vx","\@function");
+ALIGN (16);
+LABEL ("poly1305_blocks_vx");
+if ($z) {
+ aghi ($sp,-$frame);
+ vstm ("%v8","%v15","0($sp)");
+} else {
+ std ("%f4","16*$SIZE_T+2*8($sp)");
+ std ("%f6","16*$SIZE_T+3*8($sp)");
+ llgfr ($len,$len);
+}
+ llgfr ($padbit,"%r5");
+ vlef (@acc[$_],"4*$_($ctx)",1) for (0..4); # load acc1
+ larl ("%r5",".Lconst");
+ vlef (@acc[$_],"24+4*$_($ctx)",3) for (0..4); # load acc2
+ sllg ($padbit,$padbit,24);
+ vlm (@vperm[0],$mask,"0(%r5)"); # load vperm ops, mask
+ vgbm ($mask4,0x0707);
+ vlvgp ($padvec,$padbit,$padbit);
+
+ srlg ("%r1",$len,6);
+ ltgr ("%r1","%r1");
+ jz (".Lvx_4x_done");
+
+ALIGN (16);
+LABEL (".Lvx_4x");
+ vlm ("%v20","%v23","0($inp)"); # load m0,m1,m2,m3
+
+ # m01,m23 -> base 2^26
+
+ vperm (@m01[0],"%v20","%v21",@vperm[0]);
+ vperm (@m23[0],"%v22","%v23",@vperm[0]);
+ vperm (@m01[2],"%v20","%v21",@vperm[1]);
+ vperm (@m23[2],"%v22","%v23",@vperm[1]);
+ vperm (@m01[4],"%v20","%v21",@vperm[2]);
+ vperm (@m23[4],"%v22","%v23",@vperm[2]);
+
+ vesrlg (@m01[1],@m01[0],26);
+ vesrlg (@m23[1],@m23[0],26);
+ vesrlg (@m01[3],@m01[2],30);
+ vesrlg (@m23[3],@m23[2],30);
+ vesrlg (@m01[2],@m01[2],4);
+ vesrlg (@m23[2],@m23[2],4);
+
+ vn (@m01[4],@m01[4],$mask4);
+ vn (@m23[4],@m23[4],$mask4);
+for (0..3) {
+ vn (@m01[$_],@m01[$_],$mask);
+ vn (@m23[$_],@m23[$_],$mask);
+}
+ vaf (@m01[4],@m01[4],$padvec); # pad m01
+ vaf (@m23[4],@m23[4],$padvec); # pad m23
+
+ # acc = acc * r^4 + m01 * r^2 + m23
+
+ vlrepf (@r5[$_],"4*$_+108($ctx)") for (0..4); # load 5*r^2
+ vlrepf (@r[$_],"4*$_+88($ctx)") for (0..4); # load r^2
+
+ vmalof (@tmp[0],@m01[4],@r5[1],@m23[0]);
+ vmalof (@tmp[1],@m01[4],@r5[2],@m23[1]);
+ vmalof (@tmp[2],@m01[4],@r5[3],@m23[2]);
+ vmalof (@tmp[3],@m01[4],@r5[4],@m23[3]);
+ vmalof (@tmp[4],@m01[4],@r[0],@m23[4]);
+
+ vmalof (@tmp[0],@m01[3],@r5[2],@tmp[0]);
+ vmalof (@tmp[1],@m01[3],@r5[3],@tmp[1]);
+ vmalof (@tmp[2],@m01[3],@r5[4],@tmp[2]);
+ vmalof (@tmp[3],@m01[3],@r[0],@tmp[3]);
+ vmalof (@tmp[4],@m01[3],@r[1],@tmp[4]);
+
+ vmalof (@tmp[0],@m01[2],@r5[3],@tmp[0]);
+ vmalof (@tmp[1],@m01[2],@r5[4],@tmp[1]);
+ vmalof (@tmp[2],@m01[2],@r[0],@tmp[2]);
+ vmalof (@tmp[3],@m01[2],@r[1],@tmp[3]);
+ vmalof (@tmp[4],@m01[2],@r[2],@tmp[4]);
+
+ vmalof (@tmp[0],@m01[1],@r5[4],@tmp[0]);
+ vmalof (@tmp[1],@m01[1],@r[0],@tmp[1]);
+ vmalof (@tmp[2],@m01[1],@r[1],@tmp[2]);
+ vmalof (@tmp[3],@m01[1],@r[2],@tmp[3]);
+ vmalof (@tmp[4],@m01[1],@r[3],@tmp[4]);
+
+ vmalof (@tmp[0],@m01[0],@r[0],@tmp[0]);
+ vmalof (@tmp[1],@m01[0],@r[1],@tmp[1]);
+ vmalof (@tmp[2],@m01[0],@r[2],@tmp[2]);
+ vmalof (@tmp[3],@m01[0],@r[3],@tmp[3]);
+ vmalof (@tmp[4],@m01[0],@r[4],@tmp[4]);
+
+ vlrepf (@r5[$_],"4*$_+148($ctx)") for (0..4); # load 5*r^4
+ vlrepf (@r[$_],"4*$_+128($ctx)") for (0..4); # load r^4
+
+ vmalof (@tmp[0],@acc[4],@r5[1],@tmp[0]);
+ vmalof (@tmp[1],@acc[4],@r5[2],@tmp[1]);
+ vmalof (@tmp[2],@acc[4],@r5[3],@tmp[2]);
+ vmalof (@tmp[3],@acc[4],@r5[4],@tmp[3]);
+ vmalof (@tmp[4],@acc[4],@r[0],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[3],@r5[2],@tmp[0]);
+ vmalof (@tmp[1],@acc[3],@r5[3],@tmp[1]);
+ vmalof (@tmp[2],@acc[3],@r5[4],@tmp[2]);
+ vmalof (@tmp[3],@acc[3],@r[0],@tmp[3]);
+ vmalof (@tmp[4],@acc[3],@r[1],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[2],@r5[3],@tmp[0]);
+ vmalof (@tmp[1],@acc[2],@r5[4],@tmp[1]);
+ vmalof (@tmp[2],@acc[2],@r[0],@tmp[2]);
+ vmalof (@tmp[3],@acc[2],@r[1],@tmp[3]);
+ vmalof (@tmp[4],@acc[2],@r[2],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[1],@r5[4],@tmp[0]);
+ vmalof (@tmp[1],@acc[1],@r[0],@tmp[1]);
+ vmalof (@tmp[2],@acc[1],@r[1],@tmp[2]);
+ vmalof (@tmp[3],@acc[1],@r[2],@tmp[3]);
+ vmalof (@tmp[4],@acc[1],@r[3],@tmp[4]);
+
+ vmalof (@acc[1],@acc[0],@r[1],@tmp[1]);
+ vmalof (@acc[2],@acc[0],@r[2],@tmp[2]);
+ vmalof (@acc[3],@acc[0],@r[3],@tmp[3]);
+ vmalof (@acc[4],@acc[0],@r[4],@tmp[4]);
+ vmalof (@acc[0],@acc[0],@r[0],@tmp[0]);
+
+ REDUCE ();
+
+ la ($inp,"64($inp)");
+ brctg ("%r1",".Lvx_4x");
+
+ALIGN (16);
+LABEL (".Lvx_4x_done");
+ tml ($len,32);
+ jz (".Lvx_2x_done");
+
+ vlm ("%v20","%v21","0($inp)"); # load m0,m1
+
+ # m01 -> base 2^26
+
+ vperm (@m01[0],"%v20","%v21",@vperm[0]);
+ vperm (@m01[2],"%v20","%v21",@vperm[1]);
+ vperm (@m01[4],"%v20","%v21",@vperm[2]);
+
+ vesrlg (@m01[1],@m01[0],26);
+ vesrlg (@m01[3],@m01[2],30);
+ vesrlg (@m01[2],@m01[2],4);
+
+ vn (@m01[4],@m01[4],$mask4);
+ vn (@m01[$_],@m01[$_],$mask) for (0..3);
+
+ vaf (@m01[4],@m01[4],$padvec); # pad m01
+
+ # acc = acc * r^2+ m01
+
+ vlrepf (@r5[$_],"4*$_+108($ctx)") for (0..4); # load 5*r^2
+ vlrepf (@r[$_],"4*$_+88($ctx)") for (0..4); # load r^2
+
+ vmalof (@tmp[0],@acc[4],@r5[1],@m01[0]);
+ vmalof (@tmp[1],@acc[4],@r5[2],@m01[1]);
+ vmalof (@tmp[2],@acc[4],@r5[3],@m01[2]);
+ vmalof (@tmp[3],@acc[4],@r5[4],@m01[3]);
+ vmalof (@tmp[4],@acc[4],@r[0],@m01[4]);
+
+ vmalof (@tmp[0],@acc[3],@r5[2],@tmp[0]);
+ vmalof (@tmp[1],@acc[3],@r5[3],@tmp[1]);
+ vmalof (@tmp[2],@acc[3],@r5[4],@tmp[2]);
+ vmalof (@tmp[3],@acc[3],@r[0],@tmp[3]);
+ vmalof (@tmp[4],@acc[3],@r[1],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[2],@r5[3],@tmp[0]);
+ vmalof (@tmp[1],@acc[2],@r5[4],@tmp[1]);
+ vmalof (@tmp[2],@acc[2],@r[0],@tmp[2]);
+ vmalof (@tmp[3],@acc[2],@r[1],@tmp[3]);
+ vmalof (@tmp[4],@acc[2],@r[2],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[1],@r5[4],@tmp[0]);
+ vmalof (@tmp[1],@acc[1],@r[0],@tmp[1]);
+ vmalof (@tmp[2],@acc[1],@r[1],@tmp[2]);
+ vmalof (@tmp[3],@acc[1],@r[2],@tmp[3]);
+ vmalof (@tmp[4],@acc[1],@r[3],@tmp[4]);
+
+ vmalof (@acc[1],@acc[0],@r[1],@tmp[1]);
+ vmalof (@acc[2],@acc[0],@r[2],@tmp[2]);
+ vmalof (@acc[3],@acc[0],@r[3],@tmp[3]);
+ vmalof (@acc[4],@acc[0],@r[4],@tmp[4]);
+ vmalof (@acc[0],@acc[0],@r[0],@tmp[0]);
+
+ REDUCE ();
+
+ la ($inp,"32($inp)");
+
+ALIGN (16);
+LABEL (".Lvx_2x_done");
+ tml ($len,16);
+ jz (".Lvx_done");
+
+ vleig ($padvec,0,0);
+
+ vzero ("%v20");
+ vl ("%v21","0($inp)"); # load m0
+
+ # m0 -> base 2^26
+
+ vperm (@m01[0],"%v20","%v21",@vperm[0]);
+ vperm (@m01[2],"%v20","%v21",@vperm[1]);
+ vperm (@m01[4],"%v20","%v21",@vperm[2]);
+
+ vesrlg (@m01[1],@m01[0],26);
+ vesrlg (@m01[3],@m01[2],30);
+ vesrlg (@m01[2],@m01[2],4);
+
+ vn (@m01[4],@m01[4],$mask4);
+ vn (@m01[$_],@m01[$_],$mask) for (0..3);
+
+ vaf (@m01[4],@m01[4],$padvec); # pad m0
+
+ # acc = acc * r + m01
+
+ vlrepf (@r5[$_],"4*$_+68($ctx)") for (0..4); # load 5*r
+ vlrepf (@r[$_],"4*$_+48($ctx)") for (0..4); # load r
+
+ vmalof (@tmp[0],@acc[4],@r5[1],@m01[0]);
+ vmalof (@tmp[1],@acc[4],@r5[2],@m01[1]);
+ vmalof (@tmp[2],@acc[4],@r5[3],@m01[2]);
+ vmalof (@tmp[3],@acc[4],@r5[4],@m01[3]);
+ vmalof (@tmp[4],@acc[4],@r[0],@m01[4]);
+
+ vmalof (@tmp[0],@acc[3],@r5[2],@tmp[0]);
+ vmalof (@tmp[1],@acc[3],@r5[3],@tmp[1]);
+ vmalof (@tmp[2],@acc[3],@r5[4],@tmp[2]);
+ vmalof (@tmp[3],@acc[3],@r[0],@tmp[3]);
+ vmalof (@tmp[4],@acc[3],@r[1],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[2],@r5[3],@tmp[0]);
+ vmalof (@tmp[1],@acc[2],@r5[4],@tmp[1]);
+ vmalof (@tmp[2],@acc[2],@r[0],@tmp[2]);
+ vmalof (@tmp[3],@acc[2],@r[1],@tmp[3]);
+ vmalof (@tmp[4],@acc[2],@r[2],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[1],@r5[4],@tmp[0]);
+ vmalof (@tmp[1],@acc[1],@r[0],@tmp[1]);
+ vmalof (@tmp[2],@acc[1],@r[1],@tmp[2]);
+ vmalof (@tmp[3],@acc[1],@r[2],@tmp[3]);
+ vmalof (@tmp[4],@acc[1],@r[3],@tmp[4]);
+
+ vmalof (@acc[1],@acc[0],@r[1],@tmp[1]);
+ vmalof (@acc[2],@acc[0],@r[2],@tmp[2]);
+ vmalof (@acc[3],@acc[0],@r[3],@tmp[3]);
+ vmalof (@acc[4],@acc[0],@r[4],@tmp[4]);
+ vmalof (@acc[0],@acc[0],@r[0],@tmp[0]);
+
+ REDUCE ();
+
+ALIGN (16);
+LABEL (".Lvx_done");
+ vstef (@acc[$_],"4*$_($ctx)",1) for (0..4); # store acc
+ vstef (@acc[$_],"24+4*$_($ctx)",3) for (0..4);
+
+if ($z) {
+ vlm ("%v8","%v15","0($sp)");
+ la ($sp,"$frame($sp)");
+} else {
+ ld ("%f4","16*$SIZE_T+2*8($sp)");
+ ld ("%f6","16*$SIZE_T+3*8($sp)");
+}
+ br ("%r14");
+SIZE ("poly1305_blocks_vx",".-poly1305_blocks_vx");
+}
- stm${g} %r6,%r14,`6*$SIZE_T`($sp)
+################
+# static void poly1305_emit_vx(void *ctx, unsigned char mac[16],
+# const u32 nonce[4])
+{
+my ($ctx,$mac,$nonce) = map("%r$_",(2..4));
+
+GLOBL ("poly1305_emit_vx");
+TYPE ("poly1305_emit_vx","\@function");
+ALIGN (16);
+LABEL ("poly1305_emit_vx");
+if ($z) {
+ aghi ($sp,-$frame);
+ vstm ("%v8","%v15","0($sp)");
+} else {
+ std ("%f4","16*$SIZE_T+2*8($sp)");
+ std ("%f6","16*$SIZE_T+3*8($sp)");
+}
+ larl ("%r5",".Lconst");
- llgfr $padbit,$padbit # clear upper half, much needed with
+ vlef (@acc[$_],"4*$_($ctx)",1) for (0..4); # load acc1
+ vlef (@acc[$_],"24+4*$_($ctx)",3) for (0..4); # load acc2
+ vlef (@r5[$_],"108+4*$_($ctx)",1) for (0..4); # load 5*r^2
+ vlef (@r[$_],"88+4*$_($ctx)",1) for (0..4); # load r^2
+ vlef (@r5[$_],"68+4*$_($ctx)",3) for (0..4); # load 5*r
+ vlef (@r[$_],"48+4*$_($ctx)",3) for (0..4); # load r
+ vl ($mask,"48(%r5)"); # load mask
+
+ # acc = acc1 * r^2 + acc2 * r
+
+ vmlof (@tmp[0],@acc[4],@r5[1]);
+ vmlof (@tmp[1],@acc[4],@r5[2]);
+ vmlof (@tmp[2],@acc[4],@r5[3]);
+ vmlof (@tmp[3],@acc[4],@r5[4]);
+ vmlof (@tmp[4],@acc[4],@r[0]);
+
+ vmalof (@tmp[0],@acc[3],@r5[2],@tmp[0]);
+ vmalof (@tmp[1],@acc[3],@r5[3],@tmp[1]);
+ vmalof (@tmp[2],@acc[3],@r5[4],@tmp[2]);
+ vmalof (@tmp[3],@acc[3],@r[0],@tmp[3]);
+ vmalof (@tmp[4],@acc[3],@r[1],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[2],@r5[3],@tmp[0]);
+ vmalof (@tmp[1],@acc[2],@r5[4],@tmp[1]);
+ vmalof (@tmp[2],@acc[2],@r[0],@tmp[2]);
+ vmalof (@tmp[3],@acc[2],@r[1],@tmp[3]);
+ vmalof (@tmp[4],@acc[2],@r[2],@tmp[4]);
+
+ vmalof (@tmp[0],@acc[1],@r5[4],@tmp[0]);
+ vmalof (@tmp[1],@acc[1],@r[0],@tmp[1]);
+ vmalof (@tmp[2],@acc[1],@r[1],@tmp[2]);
+ vmalof (@tmp[3],@acc[1],@r[2],@tmp[3]);
+ vmalof (@tmp[4],@acc[1],@r[3],@tmp[4]);
+
+ vmalof (@acc[1],@acc[0],@r[1],@tmp[1]);
+ vmalof (@acc[2],@acc[0],@r[2],@tmp[2]);
+ vmalof (@acc[3],@acc[0],@r[3],@tmp[3]);
+ vmalof (@acc[4],@acc[0],@r[4],@tmp[4]);
+ vmalof (@acc[0],@acc[0],@r[0],@tmp[0]);
+
+ vzero ("%v27");
+ vsumqg (@acc[$_],@acc[$_],"%v27") for (0..4);
+
+ REDUCE ();
+
+ vesrlg (@tmp[1],@acc[1],26);
+ vn (@acc[1],@acc[1],$mask);
+ vag (@acc[2],@acc[2],@tmp[1]); # carry 1->2
+
+ vesrlg (@tmp[2],@acc[2],26);
+ vn (@acc[2],@acc[2],$mask);
+ vag (@acc[3],@acc[3],@tmp[2]); # carry 2->3
+
+ vesrlg (@tmp[3],@acc[3],26);
+ vn (@acc[3],@acc[3],$mask);
+ vag (@acc[4],@acc[4],@tmp[3]); # carry 3->4
+
+ # acc -> base 2^64
+ vleib ("%v30",6*8,7);
+ vleib ("%v29",13*8,7);
+ vleib ("%v28",3*8,7);
+
+ veslg (@acc[1],@acc[1],26);
+ veslg (@acc[3],@acc[3],26);
+ vo (@acc[0],@acc[0],@acc[1]);
+ vo (@acc[2],@acc[2],@acc[3]);
+
+ veslg (@acc[2],@acc[2],4);
+ vslb (@acc[2],@acc[2],"%v30"); # <<52
+ vo (@acc[0],@acc[0],@acc[2]);
+
+ vslb (@tmp[4],@acc[4],"%v29"); # <<104
+ vo (@acc[0],@acc[0],@tmp[4]);
+
+ vsrlb (@acc[1],@acc[4],"%v28"); # >>24
+
+ # acc %= 2^130-5
+ vone ("%v26");
+ vleig ("%v27",5,1);
+ vone ("%v29");
+ vleig ("%v26",-4,1);
+
+ vaq (@tmp[0],@acc[0],"%v27");
+ vaccq (@tmp[1],@acc[0],"%v27");
+
+ vaq (@tmp[1],@tmp[1],"%v26");
+ vaccq (@tmp[1],@tmp[1],@acc[1]);
+
+ vaq (@tmp[1],@tmp[1],"%v29");
+
+ vn (@tmp[2],@tmp[1],@acc[0]);
+ vnc (@tmp[3],@tmp[0],@tmp[1]);
+ vo (@acc[0],@tmp[2],@tmp[3]);
+
+ # acc += nonce
+ vl (@vperm[0],"64(%r5)");
+ vlef (@tmp[0],"4*$_($nonce)",3-$_) for (0..3);
+
+ vaq (@acc[0],@acc[0],@tmp[0]);
+
+ vperm (@acc[0],@acc[0],@acc[0],@vperm[0]);
+ vst (@acc[0],"0($mac)"); # store mac
+
+if ($z) {
+ vlm ("%v8","%v15","0($sp)");
+ la ($sp,"$frame($sp)");
+} else {
+ ld ("%f4","16*$SIZE_T+2*8($sp)");
+ ld ("%f6","16*$SIZE_T+3*8($sp)");
+}
+ br ("%r14");
+SIZE ("poly1305_emit_vx",".-poly1305_emit_vx");
+}
+}
+
+# NOVX CODE PATH
+{
+################
+# static void poly1305_blocks(void *ctx, const unsigned char *inp, size_t len,
+# u32 padbit)
+{
+my ($ctx,$inp,$len,$padbit) = map("%r$_",(2..5));
+
+my ($d0hi,$d0lo,$d1hi,$d1lo,$t0,$h0,$t1,$h1,$h2) = map("%r$_",(6..14));
+my ($r0,$r1,$s1) = map("%r$_",(0..2));
+GLOBL ("poly1305_blocks");
+TYPE ("poly1305_blocks","\@function");
+ALIGN (16);
+LABEL ("poly1305_blocks");
+$z? srlg ($len,$len,4) :srl ($len,4);
+ lghi ("%r0",0);
+&{$z? \&clgr:\&clr} ($len,"%r0");
+ je (".Lno_data");
+
+&{$z? \&stmg:\&stm} ("%r6","%r14","6*$SIZE_T($sp)");
+
+ llgfr ($padbit,$padbit); # clear upper half, much needed with
# non-64-bit ABI
- lg $r0,32($ctx) # load key
- lg $r1,40($ctx)
+ lg ($r0,"32($ctx)"); # load key
+ lg ($r1,"40($ctx)");
- lg $h0,0($ctx) # load hash value
- lg $h1,8($ctx)
- lg $h2,16($ctx)
+ lg ($h0,"0($ctx)"); # load hash value
+ lg ($h1,"8($ctx)");
+ lg ($h2,"16($ctx)");
- st$g $ctx,`2*$SIZE_T`($sp) # off-load $ctx
- srlg $s1,$r1,2
- algr $s1,$r1 # s1 = r1 + r1>>2
- j .Loop
+&{$z? \&stg:\&st} ($ctx,"2*$SIZE_T($sp)"); # off-load $ctx
+ srlg ($s1,$r1,2);
+ algr ($s1,$r1); # s1 = r1 + r1>>2
+ j (".Loop");
-.align 16
-.Loop:
- lrvg $d0lo,0($inp) # load little-endian input
- lrvg $d1lo,8($inp)
- la $inp,16($inp)
+ALIGN (16);
+LABEL (".Loop");
+ lrvg ($d0lo,"0($inp)"); # load little-endian input
+ lrvg ($d1lo,"8($inp)");
+ la ($inp,"16($inp)");
- algr $d0lo,$h0 # accumulate input
- alcgr $d1lo,$h1
+ algr ($d0lo,$h0); # accumulate input
+ alcgr ($d1lo,$h1);
- lgr $h0,$d0lo
- mlgr $d0hi,$r0 # h0*r0 -> $d0hi:$d0lo
- lgr $h1,$d1lo
- mlgr $d1hi,$s1 # h1*5*r1 -> $d1hi:$d1lo
+ lgr ($h0,$d0lo);
+ mlgr ($d0hi,$r0); # h0*r0 -> $d0hi:$d0lo
+ lgr ($h1,$d1lo);
+ mlgr ($d1hi,$s1); # h1*5*r1 -> $d1hi:$d1lo
- mlgr $t0,$r1 # h0*r1 -> $t0:$h0
- mlgr $t1,$r0 # h1*r0 -> $t1:$h1
- alcgr $h2,$padbit
+ mlgr ($t0,$r1); # h0*r1 -> $t0:$h0
+ mlgr ($t1,$r0); # h1*r0 -> $t1:$h1
+ alcgr ($h2,$padbit);
- algr $d0lo,$d1lo
- lgr $d1lo,$h2
- alcgr $d0hi,$d1hi
- lghi $d1hi,0
+ algr ($d0lo,$d1lo);
+ lgr ($d1lo,$h2);
+ alcgr ($d0hi,$d1hi);
+ lghi ($d1hi,0);
- algr $h1,$h0
- alcgr $t1,$t0
+ algr ($h1,$h0);
+ alcgr ($t1,$t0);
- msgr $d1lo,$s1 # h2*s1
- msgr $h2,$r0 # h2*r0
+ msgr ($d1lo,$s1); # h2*s1
+ msgr ($h2,$r0); # h2*r0
- algr $h1,$d1lo
- alcgr $t1,$d1hi # $d1hi is zero
+ algr ($h1,$d1lo);
+ alcgr ($t1,$d1hi); # $d1hi is zero
- algr $h1,$d0hi
- alcgr $h2,$t1
+ algr ($h1,$d0hi);
+ alcgr ($h2,$t1);
- lghi $h0,-4 # final reduction step
- ngr $h0,$h2
- srlg $t0,$h2,2
- algr $h0,$t0
- lghi $t1,3
- ngr $h2,$t1
+ lghi ($h0,-4); # final reduction step
+ ngr ($h0,$h2);
+ srlg ($t0,$h2,2);
+ algr ($h0,$t0);
+ lghi ($t1,3);
+ ngr ($h2,$t1);
- algr $h0,$d0lo
- alcgr $h1,$d1hi # $d1hi is still zero
- alcgr $h2,$d1hi # $d1hi is still zero
+ algr ($h0,$d0lo);
+ alcgr ($h1,$d1hi); # $d1hi is still zero
+ alcgr ($h2,$d1hi); # $d1hi is still zero
- brct$g $len,.Loop
+&{$z? \&brctg:\&brct} ($len,".Loop");
- l$g $ctx,`2*$SIZE_T`($sp) # restore $ctx
+&{$z? \&lg:\&l} ($ctx,"2*$SIZE_T($sp)");# restore $ctx
- stg $h0,0($ctx) # store hash value
- stg $h1,8($ctx)
- stg $h2,16($ctx)
+ stg ($h0,"0($ctx)"); # store hash value
+ stg ($h1,"8($ctx)");
+ stg ($h2,"16($ctx)");
- lm${g} %r6,%r14,`6*$SIZE_T`($sp)
-.Lno_data:
- br %r14
-.size poly1305_blocks,.-poly1305_blocks
-___
+&{$z? \&lmg:\&lm} ("%r6","%r14","6*$SIZE_T($sp)");
+LABEL (".Lno_data");
+ br ("%r14");
+SIZE ("poly1305_blocks",".-poly1305_blocks");
}
+
+################
+# static void poly1305_emit(void *ctx, unsigned char mac[16],
+# const u32 nonce[4])
{
-my ($mac,$nonce)=($inp,$len);
+my ($ctx,$mac,$nonce) = map("%r$_",(2..4));
my ($h0,$h1,$h2,$d0,$d1)=map("%r$_",(5..9));
-$code.=<<___;
-.globl poly1305_emit
-.type poly1305_emit,\@function
-.align 16
-poly1305_emit:
- stm${g} %r6,%r9,`6*$SIZE_T`($sp)
-
- lg $h0,0($ctx)
- lg $h1,8($ctx)
- lg $h2,16($ctx)
-
- lghi %r0,5
- lghi %r1,0
- lgr $d0,$h0
- lgr $d1,$h1
-
- algr $h0,%r0 # compare to modulus
- alcgr $h1,%r1
- alcgr $h2,%r1
-
- srlg $h2,$h2,2 # did it borrow/carry?
- slgr %r1,$h2 # 0-$h2>>2
- lg $h2,0($nonce) # load nonce
- lghi %r0,-1
- lg $ctx,8($nonce)
- xgr %r0,%r1 # ~%r1
-
- ngr $h0,%r1
- ngr $d0,%r0
- ngr $h1,%r1
- ngr $d1,%r0
- ogr $h0,$d0
- rllg $d0,$h2,32 # flip nonce words
- ogr $h1,$d1
- rllg $d1,$ctx,32
-
- algr $h0,$d0 # accumulate nonce
- alcgr $h1,$d1
-
- strvg $h0,0($mac) # write little-endian result
- strvg $h1,8($mac)
-
- lm${g} %r6,%r9,`6*$SIZE_T`($sp)
- br %r14
-.size poly1305_emit,.-poly1305_emit
-
-.string "Poly1305 for s390x, CRYPTOGAMS by <appro\@openssl.org>"
-___
-}
-
-$code =~ s/\`([^\`]*)\`/eval $1/gem;
-$code =~ s/\b(srlg\s+)(%r[0-9]+\s*,)\s*([0-9]+)/$1$2$2$3/gm;
-
-print $code;
-close STDOUT;
+GLOBL ("poly1305_emit");
+TYPE ("poly1305_emit","\@function");
+ALIGN (16);
+LABEL ("poly1305_emit");
+&{$z? \&stmg:\&stm} ("%r6","%r9","6*$SIZE_T($sp)");
+
+ lg ($h0,"0($ctx)");
+ lg ($h1,"8($ctx)");
+ lg ($h2,"16($ctx)");
+
+ lghi ("%r0",5);
+ lghi ("%r1",0);
+ lgr ($d0,$h0);
+ lgr ($d1,$h1);
+
+ algr ($h0,"%r0"); # compare to modulus
+ alcgr ($h1,"%r1");
+ alcgr ($h2,"%r1");
+
+ srlg ($h2,$h2,2); # did it borrow/carry?
+ slgr ("%r1",$h2); # 0-$h2>>2
+ lg ($h2,"0($nonce)"); # load nonce
+ lghi ("%r0",-1);
+ lg ($ctx,"8($nonce)");
+ xgr ("%r0","%r1"); # ~%r1
+
+ ngr ($h0,"%r1");
+ ngr ($d0,"%r0");
+ ngr ($h1,"%r1");
+ ngr ($d1,"%r0");
+ ogr ($h0,$d0);
+ rllg ($d0,$h2,32); # flip nonce words
+ ogr ($h1,$d1);
+ rllg ($d1,$ctx,32);
+
+ algr ($h0,$d0); # accumulate nonce
+ alcgr ($h1,$d1);
+
+ strvg ($h0,"0($mac)"); # write little-endian result
+ strvg ($h1,"8($mac)");
+
+&{$z? \&lmg:\&lm} ("%r6","%r9","6*$SIZE_T($sp)");
+ br ("%r14");
+SIZE ("poly1305_emit",".-poly1305_emit");
+}
+}
+################
+
+ALIGN (128);
+LABEL (".Lconst");
+LONG (0x00060504,0x03020100,0x00161514,0x13121110); # vperm op[m[1],m[0]]
+LONG (0x000c0b0a,0x09080706,0x001c1b1a,0x19181716); # vperm op[m[3],m[2]]
+LONG (0x00000000,0x000f0e0d,0x00000000,0x001f1e1d); # vperm op[ - ,m[4]]
+LONG (0x00000000,0x03ffffff,0x00000000,0x03ffffff); # [0,2^26-1,0,2^26-1]
+LONG (0x0f0e0d0c,0x0b0a0908,0x07060504,0x03020100); # vperm op endian
+STRING ("\"Poly1305 for s390x, CRYPTOGAMS by <appro\@openssl.org>\"");
+
+PERLASM_END();
projects / oweals / openssl.git / commitdiff