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Diffstat (limited to 'openssl/crypto/sha/asm/sha1-s390x.pl')
-rw-r--r--openssl/crypto/sha/asm/sha1-s390x.pl50
1 files changed, 35 insertions, 15 deletions
diff --git a/openssl/crypto/sha/asm/sha1-s390x.pl b/openssl/crypto/sha/asm/sha1-s390x.pl
index 4b1784828..9193dda45 100644
--- a/openssl/crypto/sha/asm/sha1-s390x.pl
+++ b/openssl/crypto/sha/asm/sha1-s390x.pl
@@ -21,9 +21,28 @@
# instructions to favour dual-issue z10 pipeline. On z10 hardware is
# "only" ~2.3x faster than software.
+# November 2010.
+#
+# Adapt for -m31 build. If kernel supports what's called "highgprs"
+# feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit
+# instructions and achieve "64-bit" performance even in 31-bit legacy
+# application context. The feature is not specific to any particular
+# processor, as long as it's "z-CPU". Latter implies that the code
+# remains z/Architecture specific.
+
$kimdfunc=1; # magic function code for kimd instruction
-$output=shift;
+$flavour = shift;
+
+if ($flavour =~ /3[12]/) {
+ $SIZE_T=4;
+ $g="";
+} else {
+ $SIZE_T=8;
+ $g="g";
+}
+
+while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output";
$K_00_39="%r0"; $K=$K_00_39;
@@ -42,13 +61,14 @@ $t1="%r11";
@X=("%r12","%r13","%r14");
$sp="%r15";
-$frame=160+16*4;
+$stdframe=16*$SIZE_T+4*8;
+$frame=$stdframe+16*4;
sub Xupdate {
my $i=shift;
$code.=<<___ if ($i==15);
- lg $prefetch,160($sp) ### Xupdate(16) warm-up
+ lg $prefetch,$stdframe($sp) ### Xupdate(16) warm-up
lr $X[0],$X[2]
___
return if ($i&1); # Xupdate is vectorized and executed every 2nd cycle
@@ -58,8 +78,8 @@ $code.=<<___ if ($i<16);
___
$code.=<<___ if ($i>=16);
xgr $X[0],$prefetch ### Xupdate($i)
- lg $prefetch,`160+4*(($i+2)%16)`($sp)
- xg $X[0],`160+4*(($i+8)%16)`($sp)
+ lg $prefetch,`$stdframe+4*(($i+2)%16)`($sp)
+ xg $X[0],`$stdframe+4*(($i+8)%16)`($sp)
xgr $X[0],$prefetch
rll $X[0],$X[0],1
rllg $X[1],$X[0],32
@@ -68,7 +88,7 @@ $code.=<<___ if ($i>=16);
lr $X[2],$X[1] # feedback
___
$code.=<<___ if ($i<=70);
- stg $X[0],`160+4*($i%16)`($sp)
+ stg $X[0],`$stdframe+4*($i%16)`($sp)
___
unshift(@X,pop(@X));
}
@@ -148,9 +168,9 @@ $code.=<<___ if ($kimdfunc);
tmhl %r0,0x4000 # check for message-security assist
jz .Lsoftware
lghi %r0,0
- la %r1,16($sp)
+ la %r1,`2*$SIZE_T`($sp)
.long 0xb93e0002 # kimd %r0,%r2
- lg %r0,16($sp)
+ lg %r0,`2*$SIZE_T`($sp)
tmhh %r0,`0x8000>>$kimdfunc`
jz .Lsoftware
lghi %r0,$kimdfunc
@@ -165,11 +185,11 @@ $code.=<<___ if ($kimdfunc);
___
$code.=<<___;
lghi %r1,-$frame
- stg $ctx,16($sp)
- stmg %r6,%r15,48($sp)
+ st${g} $ctx,`2*$SIZE_T`($sp)
+ stm${g} %r6,%r15,`6*$SIZE_T`($sp)
lgr %r0,$sp
la $sp,0(%r1,$sp)
- stg %r0,0($sp)
+ st${g} %r0,0($sp)
larl $t0,Ktable
llgf $A,0($ctx)
@@ -199,7 +219,7 @@ ___
for (;$i<80;$i++) { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
$code.=<<___;
- lg $ctx,`$frame+16`($sp)
+ l${g} $ctx,`$frame+2*$SIZE_T`($sp)
la $inp,64($inp)
al $A,0($ctx)
al $B,4($ctx)
@@ -211,13 +231,13 @@ $code.=<<___;
st $C,8($ctx)
st $D,12($ctx)
st $E,16($ctx)
- brct $len,.Lloop
+ brct${g} $len,.Lloop
- lmg %r6,%r15,`$frame+48`($sp)
+ lm${g} %r6,%r15,`$frame+6*$SIZE_T`($sp)
br %r14
.size sha1_block_data_order,.-sha1_block_data_order
.string "SHA1 block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
-.comm OPENSSL_s390xcap_P,8,8
+.comm OPENSSL_s390xcap_P,16,8
___
$code =~ s/\`([^\`]*)\`/eval $1/gem;