crypto/sha/asm/sha*-x86_64.pl: comply with Win64 ABI.
[openssl.git] / crypto / sha / asm / sha512-s390x.pl
1 #!/usr/bin/env perl
2
3 # ====================================================================
4 # Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
5 # project. The module is, however, dual licensed under OpenSSL and
6 # CRYPTOGAMS licenses depending on where you obtain it. For further
7 # details see http://www.openssl.org/~appro/cryptogams/.
8 # ====================================================================
9
10 # SHA256/512 block procedures for s390x.
11
12 # April 2007.
13 #
14 # sha256_block_data_order is reportedly >3 times faster than gcc 3.3
15 # generated code (must be a bug in compiler, as improvement is
16 # "pathologically" high, in particular in comparison to other SHA
17 # modules). But the real twist is that it detects if hardware support
18 # for SHA256 is available and in such case utilizes it. Then the
19 # performance can reach >6.5x of assembler one for larger chunks.
20 #
21 # sha512_block_data_order is ~70% faster than gcc 3.3 generated code.
22
23 # January 2009.
24 #
25 # Add support for hardware SHA512 and reschedule instructions to
26 # favour dual-issue z10 pipeline. Hardware SHA256/512 is ~4.7x faster
27 # than software.
28
29 # November 2010.
30 #
31 # Adapt for -m31 build. If kernel supports what's called "highgprs"
32 # feature on Linux [see /proc/cpuinfo], it's possible to use 64-bit
33 # instructions and achieve "64-bit" performance even in 31-bit legacy
34 # application context. The feature is not specific to any particular
35 # processor, as long as it's "z-CPU". Latter implies that the code
36 # remains z/Architecture specific. On z990 SHA256 was measured to
37 # perform 2.4x and SHA512 - 13x better than code generated by gcc 4.3.
38
39 $flavour = shift;
40
41 if ($flavour =~ /3[12]/) {
42         $SIZE_T=4;
43         $g="";
44 } else {
45         $SIZE_T=8;
46         $g="g";
47 }
48
49 $t0="%r0";
50 $t1="%r1";
51 $ctx="%r2";     $t2="%r2";
52 $inp="%r3";
53 $len="%r4";     # used as index in inner loop
54
55 $A="%r5";
56 $B="%r6";
57 $C="%r7";
58 $D="%r8";
59 $E="%r9";
60 $F="%r10";
61 $G="%r11";
62 $H="%r12";      @V=($A,$B,$C,$D,$E,$F,$G,$H);
63 $tbl="%r13";
64 $T1="%r14";
65 $sp="%r15";
66
67 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
68 open STDOUT,">$output";
69
70 if ($output =~ /512/) {
71         $label="512";
72         $SZ=8;
73         $LD="lg";       # load from memory
74         $ST="stg";      # store to memory
75         $ADD="alg";     # add with memory operand
76         $ROT="rllg";    # rotate left
77         $SHR="srlg";    # logical right shift [see even at the end]
78         @Sigma0=(25,30,36);
79         @Sigma1=(23,46,50);
80         @sigma0=(56,63, 7);
81         @sigma1=( 3,45, 6);
82         $rounds=80;
83         $kimdfunc=3;    # 0 means unknown/unsupported/unimplemented/disabled
84 } else {
85         $label="256";
86         $SZ=4;
87         $LD="llgf";     # load from memory
88         $ST="st";       # store to memory
89         $ADD="al";      # add with memory operand
90         $ROT="rll";     # rotate left
91         $SHR="srl";     # logical right shift
92         @Sigma0=(10,19,30);
93         @Sigma1=( 7,21,26);
94         @sigma0=(14,25, 3);
95         @sigma1=(13,15,10);
96         $rounds=64;
97         $kimdfunc=2;    # magic function code for kimd instruction
98 }
99 $Func="sha${label}_block_data_order";
100 $Table="K${label}";
101 $stdframe=16*$SIZE_T+4*8;
102 $frame=$stdframe+16*$SZ;
103
104 sub BODY_00_15 {
105 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
106
107 $code.=<<___ if ($i<16);
108         $LD     $T1,`$i*$SZ`($inp)      ### $i
109 ___
110 $code.=<<___;
111         $ROT    $t0,$e,$Sigma1[0]
112         $ROT    $t1,$e,$Sigma1[1]
113          lgr    $t2,$f
114         xgr     $t0,$t1
115         $ROT    $t1,$t1,`$Sigma1[2]-$Sigma1[1]`
116          xgr    $t2,$g
117         $ST     $T1,`$stdframe+$SZ*($i%16)`($sp)
118         xgr     $t0,$t1                 # Sigma1(e)
119         algr    $T1,$h                  # T1+=h
120          ngr    $t2,$e
121          lgr    $t1,$a
122         algr    $T1,$t0                 # T1+=Sigma1(e)
123         $ROT    $h,$a,$Sigma0[0]
124          xgr    $t2,$g                  # Ch(e,f,g)
125         $ADD    $T1,`$i*$SZ`($len,$tbl) # T1+=K[i]
126         $ROT    $t0,$a,$Sigma0[1]
127         algr    $T1,$t2                 # T1+=Ch(e,f,g)
128          ogr    $t1,$b
129         xgr     $h,$t0
130          lgr    $t2,$a
131          ngr    $t1,$c
132         $ROT    $t0,$t0,`$Sigma0[2]-$Sigma0[1]`
133         xgr     $h,$t0                  # h=Sigma0(a)
134          ngr    $t2,$b
135         algr    $h,$T1                  # h+=T1
136          ogr    $t2,$t1                 # Maj(a,b,c)
137         algr    $d,$T1                  # d+=T1
138         algr    $h,$t2                  # h+=Maj(a,b,c)
139 ___
140 }
141
142 sub BODY_16_XX {
143 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
144
145 $code.=<<___;
146         $LD     $T1,`$stdframe+$SZ*(($i+1)%16)`($sp)    ### $i
147         $LD     $t1,`$stdframe+$SZ*(($i+14)%16)`($sp)
148         $ROT    $t0,$T1,$sigma0[0]
149         $SHR    $T1,$sigma0[2]
150         $ROT    $t2,$t0,`$sigma0[1]-$sigma0[0]`
151         xgr     $T1,$t0
152         $ROT    $t0,$t1,$sigma1[0]
153         xgr     $T1,$t2                                 # sigma0(X[i+1])
154         $SHR    $t1,$sigma1[2]
155         $ADD    $T1,`$stdframe+$SZ*($i%16)`($sp)        # +=X[i]
156         xgr     $t1,$t0
157         $ROT    $t0,$t0,`$sigma1[1]-$sigma1[0]`
158         $ADD    $T1,`$stdframe+$SZ*(($i+9)%16)`($sp)    # +=X[i+9]
159         xgr     $t1,$t0                         # sigma1(X[i+14])
160         algr    $T1,$t1                         # +=sigma1(X[i+14])
161 ___
162         &BODY_00_15(@_);
163 }
164
165 $code.=<<___;
166 .text
167 .align  64
168 .type   $Table,\@object
169 $Table:
170 ___
171 $code.=<<___ if ($SZ==4);
172         .long   0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
173         .long   0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
174         .long   0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
175         .long   0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
176         .long   0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
177         .long   0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
178         .long   0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
179         .long   0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
180         .long   0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
181         .long   0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
182         .long   0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
183         .long   0xd192e819,0xd6990624,0xf40e3585,0x106aa070
184         .long   0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
185         .long   0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
186         .long   0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
187         .long   0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
188 ___
189 $code.=<<___ if ($SZ==8);
190         .quad   0x428a2f98d728ae22,0x7137449123ef65cd
191         .quad   0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
192         .quad   0x3956c25bf348b538,0x59f111f1b605d019
193         .quad   0x923f82a4af194f9b,0xab1c5ed5da6d8118
194         .quad   0xd807aa98a3030242,0x12835b0145706fbe
195         .quad   0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
196         .quad   0x72be5d74f27b896f,0x80deb1fe3b1696b1
197         .quad   0x9bdc06a725c71235,0xc19bf174cf692694
198         .quad   0xe49b69c19ef14ad2,0xefbe4786384f25e3
199         .quad   0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
200         .quad   0x2de92c6f592b0275,0x4a7484aa6ea6e483
201         .quad   0x5cb0a9dcbd41fbd4,0x76f988da831153b5
202         .quad   0x983e5152ee66dfab,0xa831c66d2db43210
203         .quad   0xb00327c898fb213f,0xbf597fc7beef0ee4
204         .quad   0xc6e00bf33da88fc2,0xd5a79147930aa725
205         .quad   0x06ca6351e003826f,0x142929670a0e6e70
206         .quad   0x27b70a8546d22ffc,0x2e1b21385c26c926
207         .quad   0x4d2c6dfc5ac42aed,0x53380d139d95b3df
208         .quad   0x650a73548baf63de,0x766a0abb3c77b2a8
209         .quad   0x81c2c92e47edaee6,0x92722c851482353b
210         .quad   0xa2bfe8a14cf10364,0xa81a664bbc423001
211         .quad   0xc24b8b70d0f89791,0xc76c51a30654be30
212         .quad   0xd192e819d6ef5218,0xd69906245565a910
213         .quad   0xf40e35855771202a,0x106aa07032bbd1b8
214         .quad   0x19a4c116b8d2d0c8,0x1e376c085141ab53
215         .quad   0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
216         .quad   0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
217         .quad   0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
218         .quad   0x748f82ee5defb2fc,0x78a5636f43172f60
219         .quad   0x84c87814a1f0ab72,0x8cc702081a6439ec
220         .quad   0x90befffa23631e28,0xa4506cebde82bde9
221         .quad   0xbef9a3f7b2c67915,0xc67178f2e372532b
222         .quad   0xca273eceea26619c,0xd186b8c721c0c207
223         .quad   0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
224         .quad   0x06f067aa72176fba,0x0a637dc5a2c898a6
225         .quad   0x113f9804bef90dae,0x1b710b35131c471b
226         .quad   0x28db77f523047d84,0x32caab7b40c72493
227         .quad   0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
228         .quad   0x4cc5d4becb3e42b6,0x597f299cfc657e2a
229         .quad   0x5fcb6fab3ad6faec,0x6c44198c4a475817
230 ___
231 $code.=<<___;
232 .size   $Table,.-$Table
233 .globl  $Func
234 .type   $Func,\@function
235 $Func:
236         sllg    $len,$len,`log(16*$SZ)/log(2)`
237 ___
238 $code.=<<___ if ($kimdfunc);
239         larl    %r1,OPENSSL_s390xcap_P
240         lg      %r0,0(%r1)
241         tmhl    %r0,0x4000      # check for message-security assist
242         jz      .Lsoftware
243         lghi    %r0,0
244         la      %r1,`2*$SIZE_T`($sp)
245         .long   0xb93e0002      # kimd %r0,%r2
246         lg      %r0,`2*$SIZE_T`($sp)
247         tmhh    %r0,`0x8000>>$kimdfunc`
248         jz      .Lsoftware
249         lghi    %r0,$kimdfunc
250         lgr     %r1,$ctx
251         lgr     %r2,$inp
252         lgr     %r3,$len
253         .long   0xb93e0002      # kimd %r0,%r2
254         brc     1,.-4           # pay attention to "partial completion"
255         br      %r14
256 .align  16
257 .Lsoftware:
258 ___
259 $code.=<<___;
260         lghi    %r1,-$frame
261         la      $len,0($len,$inp)
262         stm${g} $ctx,%r15,`2*$SIZE_T`($sp)
263         lgr     %r0,$sp
264         la      $sp,0(%r1,$sp)
265         st${g}  %r0,0($sp)
266
267         larl    $tbl,$Table
268         $LD     $A,`0*$SZ`($ctx)
269         $LD     $B,`1*$SZ`($ctx)
270         $LD     $C,`2*$SZ`($ctx)
271         $LD     $D,`3*$SZ`($ctx)
272         $LD     $E,`4*$SZ`($ctx)
273         $LD     $F,`5*$SZ`($ctx)
274         $LD     $G,`6*$SZ`($ctx)
275         $LD     $H,`7*$SZ`($ctx)
276
277 .Lloop:
278         lghi    $len,0
279 ___
280 for ($i=0;$i<16;$i++)   { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
281 $code.=".Lrounds_16_xx:\n";
282 for (;$i<32;$i++)       { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); }
283 $code.=<<___;
284         aghi    $len,`16*$SZ`
285         lghi    $t0,`($rounds-16)*$SZ`
286         clgr    $len,$t0
287         jne     .Lrounds_16_xx
288
289         l${g}   $ctx,`$frame+2*$SIZE_T`($sp)
290         la      $inp,`16*$SZ`($inp)
291         $ADD    $A,`0*$SZ`($ctx)
292         $ADD    $B,`1*$SZ`($ctx)
293         $ADD    $C,`2*$SZ`($ctx)
294         $ADD    $D,`3*$SZ`($ctx)
295         $ADD    $E,`4*$SZ`($ctx)
296         $ADD    $F,`5*$SZ`($ctx)
297         $ADD    $G,`6*$SZ`($ctx)
298         $ADD    $H,`7*$SZ`($ctx)
299         $ST     $A,`0*$SZ`($ctx)
300         $ST     $B,`1*$SZ`($ctx)
301         $ST     $C,`2*$SZ`($ctx)
302         $ST     $D,`3*$SZ`($ctx)
303         $ST     $E,`4*$SZ`($ctx)
304         $ST     $F,`5*$SZ`($ctx)
305         $ST     $G,`6*$SZ`($ctx)
306         $ST     $H,`7*$SZ`($ctx)
307         cl${g}  $inp,`$frame+4*$SIZE_T`($sp)
308         jne     .Lloop
309
310         lm${g}  %r6,%r15,`$frame+6*$SIZE_T`($sp)        
311         br      %r14
312 .size   $Func,.-$Func
313 .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
314 .comm   OPENSSL_s390xcap_P,16,8
315 ___
316
317 $code =~ s/\`([^\`]*)\`/eval $1/gem;
318 # unlike 32-bit shift 64-bit one takes three arguments
319 $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm;
320
321 print $code;
322 close STDOUT;