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 # ====================================================================
10 # SHA256/512 block procedures for s390x.
14 # sha256_block_data_order is reportedly >3 times faster than gcc 3.3
15 # generated code (must to 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.
21 # sha512_block_data_order is ~70% faster than gcc 3.3 generated code.
27 $len="%r4"; # used as index in inner loop
36 $H="%r12"; @V=($A,$B,$C,$D,$E,$F,$G,$H);
42 open STDOUT,">$output";
44 if ($output =~ /512/) {
47 $LD="lg"; # load from memory
48 $ST="stg"; # store to memory
49 $ADD="alg"; # add with memory operand
50 $ROT="rllg"; # rotate left
51 $SHR="srlg"; # logical right shift [see even at the end]
57 $kimdfunc=0; # 0 means unknown/unsupported/unimplemented
61 $LD="llgf"; # load from memory
62 $ST="st"; # store to memory
63 $ADD="al"; # add with memory operand
64 $ROT="rll"; # rotate left
65 $SHR="srl"; # logical right shift
71 $kimdfunc=2; # magic function code for kimd instruction
73 $Func="sha${label}_block_data_order";
78 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
80 $code.=<<___ if ($i<16);
81 $LD $T1,`$i*$SZ`($inp) ### $i
84 $ROT $t0,$e,$Sigma1[0]
85 $ROT $t1,$e,$Sigma1[1]
87 $ROT $t1,$t1,`$Sigma1[2]-$Sigma1[1]`
88 xgr $t0,$t1 # Sigma1(e)
89 $ST $T1,`160+$SZ*($i%16)`($sp)
90 algr $T1,$t0 # T1+=Sigma1(e)
92 $ADD $T1,`$i*$SZ`($len,$tbl) # T1+=K[i]
96 xgr $t0,$g # Ch(e,f,g)
97 algr $T1,$t0 # T1+=Ch(e,f,g)
99 $ROT $t0,$a,$Sigma0[1]
101 $ROT $t0,$t0,`$Sigma0[2]-$Sigma0[1]`
102 xgr $h,$t0 # h=Sigma0(a)
108 ogr $t0,$t1 # Maj(a,b,c)
109 algr $h,$t0 # h+=Maj(a,b,c)
116 my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_;
119 $LD $T1,`160+$SZ*(($i+1)%16)`($sp) ### $i
120 $LD $t1,`160+$SZ*(($i+14)%16)`($sp)
121 $ROT $t0,$T1,$sigma0[0]
124 $ROT $t0,$t0,`$sigma0[1]-$sigma0[0]`
125 xgr $T1,$t0 # sigma0(X[i+1])
126 $ROT $t0,$t1,$sigma1[0]
127 $ADD $T1,`160+$SZ*($i%16)`($sp) # +=X[i]
130 $ADD $T1,`160+$SZ*(($i+9)%16)`($sp) # +=X[i+9]
131 $ROT $t0,$t0,`$sigma1[1]-$sigma1[0]`
132 xgr $t1,$t0 # sigma1(X[i+14])
133 algr $T1,$t1 # +=sigma1(X[i+14])
141 .type $Table,\@object
144 $code.=<<___ if ($SZ==4);
145 .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
146 .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
147 .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
148 .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
149 .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
150 .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
151 .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
152 .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
153 .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
154 .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
155 .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
156 .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
157 .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
158 .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
159 .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
160 .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
162 $code.=<<___ if ($SZ==8);
163 .quad 0x428a2f98d728ae22,0x7137449123ef65cd
164 .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
165 .quad 0x3956c25bf348b538,0x59f111f1b605d019
166 .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
167 .quad 0xd807aa98a3030242,0x12835b0145706fbe
168 .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
169 .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
170 .quad 0x9bdc06a725c71235,0xc19bf174cf692694
171 .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
172 .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
173 .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
174 .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
175 .quad 0x983e5152ee66dfab,0xa831c66d2db43210
176 .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
177 .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
178 .quad 0x06ca6351e003826f,0x142929670a0e6e70
179 .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
180 .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
181 .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
182 .quad 0x81c2c92e47edaee6,0x92722c851482353b
183 .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
184 .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
185 .quad 0xd192e819d6ef5218,0xd69906245565a910
186 .quad 0xf40e35855771202a,0x106aa07032bbd1b8
187 .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
188 .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
189 .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
190 .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
191 .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
192 .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
193 .quad 0x90befffa23631e28,0xa4506cebde82bde9
194 .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
195 .quad 0xca273eceea26619c,0xd186b8c721c0c207
196 .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
197 .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
198 .quad 0x113f9804bef90dae,0x1b710b35131c471b
199 .quad 0x28db77f523047d84,0x32caab7b40c72493
200 .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
201 .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
202 .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
205 .size $Table,.-$Table
207 .type $Func,\@function
210 $code.=<<___ if ($kimdfunc);
213 .long 0xb93e0002 # kimd %r0,%r2
215 tmhh %r0,`0x8000>>$kimdfunc`
220 sllg %r3,$len,`log(16*$SZ)/log(2)`
221 .long 0xb93e0002 # kimd %r0,%r2
222 brc 1,.-4 # pay attention to "partial completion"
227 sllg $len,$len,`log(16*$SZ)/log(2)`
229 stmg $len,%r15,32($sp)
235 .Lpic: aghi $tbl,$Table-.Lpic
249 for ($i=0;$i<16;$i++) { &BODY_00_15($i,@V); unshift(@V,pop(@V)); }
250 $code.=".Lrounds_16_xx:\n";
251 for (;$i<32;$i++) { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); }
254 lghi $t0,`($rounds-16)*$SZ`
258 $ADD $A,`0*$SZ`($ctx)
259 $ADD $B,`1*$SZ`($ctx)
260 $ADD $C,`2*$SZ`($ctx)
261 $ADD $D,`3*$SZ`($ctx)
262 $ADD $E,`4*$SZ`($ctx)
263 $ADD $F,`5*$SZ`($ctx)
264 $ADD $G,`6*$SZ`($ctx)
265 $ADD $H,`7*$SZ`($ctx)
274 la $inp,`16*$SZ`($inp)
275 clg $inp,`$frame+32`($sp)
278 lmg %r6,%r15,`$frame+48`($sp)
281 .string "SHA${label} block transform for s390x, CRYPTOGAMS by <appro\@openssl.org>"
284 $code =~ s/\`([^\`]*)\`/eval $1/gem;
285 # unlike 32-bit shift 64-bit one takes three arguments
286 $code =~ s/(srlg\s+)(%r[0-9]+),/$1$2,$2,/gm;