]> git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/sha/asm/sha512-armv8.pl
projects / thirdparty / openssl.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Update copyright year
[thirdparty/openssl.git] / crypto / sha / asm / sha512-armv8.pl
1 #! /usr/bin/env perl
2 # Copyright 2014-2018 The OpenSSL Project Authors. All Rights Reserved.
3 #
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
8
9 # ====================================================================
10 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
11 # project. The module is, however, dual licensed under OpenSSL and
12 # CRYPTOGAMS licenses depending on where you obtain it. For further
13 # details see http://www.openssl.org/~appro/cryptogams/.
14 #
15 # Permission to use under GPLv2 terms is granted.
16 # ====================================================================
17 #
18 # SHA256/512 for ARMv8.
19 #
20 # Performance in cycles per processed byte and improvement coefficient
21 # over code generated with "default" compiler:
22 #
23 # SHA256-hw SHA256(*) SHA512
24 # Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**))
25 # Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***))
26 # Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***))
27 # Denver 2.01 10.5 (+26%) 6.70 (+8%)
28 # X-Gene 20.0 (+100%) 12.8 (+300%(***))
29 # Mongoose 2.36 13.0 (+50%) 8.36 (+33%)
30 # Kryo 1.92 17.4 (+30%) 11.2 (+8%)
31 #
32 # (*) Software SHA256 results are of lesser relevance, presented
33 # mostly for informational purposes.
34 # (**) The result is a trade-off: it's possible to improve it by
35 # 10% (or by 1 cycle per round), but at the cost of 20% loss
36 # on Cortex-A53 (or by 4 cycles per round).
37 # (***) Super-impressive coefficients over gcc-generated code are
38 # indication of some compiler "pathology", most notably code
39 # generated with -mgeneral-regs-only is significantly faster
40 # and the gap is only 40-90%.
41 #
42 # October 2016.
43 #
44 # Originally it was reckoned that it makes no sense to implement NEON
45 # version of SHA256 for 64-bit processors. This is because performance
46 # improvement on most wide-spread Cortex-A5x processors was observed
47 # to be marginal, same on Cortex-A53 and ~10% on A57. But then it was
48 # observed that 32-bit NEON SHA256 performs significantly better than
49 # 64-bit scalar version on *some* of the more recent processors. As
50 # result 64-bit NEON version of SHA256 was added to provide best
51 # all-round performance. For example it executes ~30% faster on X-Gene
52 # and Mongoose. [For reference, NEON version of SHA512 is bound to
53 # deliver much less improvement, likely *negative* on Cortex-A5x.
54 # Which is why NEON support is limited to SHA256.]
55
56 $output=pop;
57 $flavour=pop;
58
59 if ($flavour && $flavour ne "void") {
60 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
61 ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
62 ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
63 die "can't locate arm-xlate.pl";
64
65 open OUT,"| \"$^X\" $xlate $flavour $output";
66 *STDOUT=*OUT;
67 } else {
68 open STDOUT,">$output";
69 }
70
71 if ($output =~ /512/) {
72 $BITS=512;
73 $SZ=8;
74 @Sigma0=(28,34,39);
75 @Sigma1=(14,18,41);
76 @sigma0=(1, 8, 7);
77 @sigma1=(19,61, 6);
78 $rounds=80;
79 $reg_t="x";
80 } else {
81 $BITS=256;
82 $SZ=4;
83 @Sigma0=( 2,13,22);
84 @Sigma1=( 6,11,25);
85 @sigma0=( 7,18, 3);
86 @sigma1=(17,19,10);
87 $rounds=64;
88 $reg_t="w";
89 }
90
91 $func="sha${BITS}_block_data_order";
92
93 ($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30));
94
95 @X=map("$reg_t$_",(3..15,0..2));
96 @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27));
97 ($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28));
98
99 sub BODY_00_xx {
100 my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
101 my $j=($i+1)&15;
102 my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]);
103 $T0=@X[$i+3] if ($i<11);
104
105 $code.=<<___ if ($i<16);
106 #ifndef __AARCH64EB__
107 rev @X[$i],@X[$i] // $i
108 #endif
109 ___
110 $code.=<<___ if ($i<13 && ($i&1));
111 ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ
112 ___
113 $code.=<<___ if ($i==13);
114 ldp @X[14],@X[15],[$inp]
115 ___
116 $code.=<<___ if ($i>=14);
117 ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`]
118 ___
119 $code.=<<___ if ($i>0 && $i<16);
120 add $a,$a,$t1 // h+=Sigma0(a)
121 ___
122 $code.=<<___ if ($i>=11);
123 str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`]
124 ___
125 # While ARMv8 specifies merged rotate-n-logical operation such as
126 # 'eor x,y,z,ror#n', it was found to negatively affect performance
127 # on Apple A7. The reason seems to be that it requires even 'y' to
128 # be available earlier. This means that such merged instruction is
129 # not necessarily best choice on critical path... On the other hand
130 # Cortex-A5x handles merged instructions much better than disjoint
131 # rotate and logical... See (**) footnote above.
132 $code.=<<___ if ($i<15);
133 ror $t0,$e,#$Sigma1[0]
134 add $h,$h,$t2 // h+=K[i]
135 eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]`
136 and $t1,$f,$e
137 bic $t2,$g,$e
138 add $h,$h,@X[$i&15] // h+=X[i]
139 orr $t1,$t1,$t2 // Ch(e,f,g)
140 eor $t2,$a,$b // a^b, b^c in next round
141 eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e)
142 ror $T0,$a,#$Sigma0[0]
143 add $h,$h,$t1 // h+=Ch(e,f,g)
144 eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]`
145 add $h,$h,$t0 // h+=Sigma1(e)
146 and $t3,$t3,$t2 // (b^c)&=(a^b)
147 add $d,$d,$h // d+=h
148 eor $t3,$t3,$b // Maj(a,b,c)
149 eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a)
150 add $h,$h,$t3 // h+=Maj(a,b,c)
151 ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
152 //add $h,$h,$t1 // h+=Sigma0(a)
153 ___
154 $code.=<<___ if ($i>=15);
155 ror $t0,$e,#$Sigma1[0]
156 add $h,$h,$t2 // h+=K[i]
157 ror $T1,@X[($j+1)&15],#$sigma0[0]
158 and $t1,$f,$e
159 ror $T2,@X[($j+14)&15],#$sigma1[0]
160 bic $t2,$g,$e
161 ror $T0,$a,#$Sigma0[0]
162 add $h,$h,@X[$i&15] // h+=X[i]
163 eor $t0,$t0,$e,ror#$Sigma1[1]
164 eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1]
165 orr $t1,$t1,$t2 // Ch(e,f,g)
166 eor $t2,$a,$b // a^b, b^c in next round
167 eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e)
168 eor $T0,$T0,$a,ror#$Sigma0[1]
169 add $h,$h,$t1 // h+=Ch(e,f,g)
170 and $t3,$t3,$t2 // (b^c)&=(a^b)
171 eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1]
172 eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1])
173 add $h,$h,$t0 // h+=Sigma1(e)
174 eor $t3,$t3,$b // Maj(a,b,c)
175 eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a)
176 eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14])
177 add @X[$j],@X[$j],@X[($j+9)&15]
178 add $d,$d,$h // d+=h
179 add $h,$h,$t3 // h+=Maj(a,b,c)
180 ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round
181 add @X[$j],@X[$j],$T1
182 add $h,$h,$t1 // h+=Sigma0(a)
183 add @X[$j],@X[$j],$T2
184 ___
185 ($t2,$t3)=($t3,$t2);
186 }
187
188 $code.=<<___;
189 #ifndef __KERNEL__
190 # include "arm_arch.h"
191 #endif
192
193 .text
194
195 .extern OPENSSL_armcap_P
196 .globl $func
197 .type $func,%function
198 .align 6
199 $func:
200 #ifndef __KERNEL__
201 # ifdef __ILP32__
202 ldrsw x16,.LOPENSSL_armcap_P
203 # else
204 ldr x16,.LOPENSSL_armcap_P
205 # endif
206 adr x17,.LOPENSSL_armcap_P
207 add x16,x16,x17
208 ldr w16,[x16]
209 ___
210 $code.=<<___ if ($SZ==4);
211 tst w16,#ARMV8_SHA256
212 b.ne .Lv8_entry
213 tst w16,#ARMV7_NEON
214 b.ne .Lneon_entry
215 ___
216 $code.=<<___ if ($SZ==8);
217 tst w16,#ARMV8_SHA512
218 b.ne .Lv8_entry
219 ___
220 $code.=<<___;
221 #endif
222 stp x29,x30,[sp,#-128]!
223 add x29,sp,#0
224
225 stp x19,x20,[sp,#16]
226 stp x21,x22,[sp,#32]
227 stp x23,x24,[sp,#48]
228 stp x25,x26,[sp,#64]
229 stp x27,x28,[sp,#80]
230 sub sp,sp,#4*$SZ
231
232 ldp $A,$B,[$ctx] // load context
233 ldp $C,$D,[$ctx,#2*$SZ]
234 ldp $E,$F,[$ctx,#4*$SZ]
235 add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input
236 ldp $G,$H,[$ctx,#6*$SZ]
237 adr $Ktbl,.LK$BITS
238 stp $ctx,$num,[x29,#96]
239
240 .Loop:
241 ldp @X[0],@X[1],[$inp],#2*$SZ
242 ldr $t2,[$Ktbl],#$SZ // *K++
243 eor $t3,$B,$C // magic seed
244 str $inp,[x29,#112]
245 ___
246 for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
247 $code.=".Loop_16_xx:\n";
248 for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); }
249 $code.=<<___;
250 cbnz $t2,.Loop_16_xx
251
252 ldp $ctx,$num,[x29,#96]
253 ldr $inp,[x29,#112]
254 sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind
255
256 ldp @X[0],@X[1],[$ctx]
257 ldp @X[2],@X[3],[$ctx,#2*$SZ]
258 add $inp,$inp,#14*$SZ // advance input pointer
259 ldp @X[4],@X[5],[$ctx,#4*$SZ]
260 add $A,$A,@X[0]
261 ldp @X[6],@X[7],[$ctx,#6*$SZ]
262 add $B,$B,@X[1]
263 add $C,$C,@X[2]
264 add $D,$D,@X[3]
265 stp $A,$B,[$ctx]
266 add $E,$E,@X[4]
267 add $F,$F,@X[5]
268 stp $C,$D,[$ctx,#2*$SZ]
269 add $G,$G,@X[6]
270 add $H,$H,@X[7]
271 cmp $inp,$num
272 stp $E,$F,[$ctx,#4*$SZ]
273 stp $G,$H,[$ctx,#6*$SZ]
274 b.ne .Loop
275
276 ldp x19,x20,[x29,#16]
277 add sp,sp,#4*$SZ
278 ldp x21,x22,[x29,#32]
279 ldp x23,x24,[x29,#48]
280 ldp x25,x26,[x29,#64]
281 ldp x27,x28,[x29,#80]
282 ldp x29,x30,[sp],#128
283 ret
284 .size $func,.-$func
285
286 .align 6
287 .type .LK$BITS,%object
288 .LK$BITS:
289 ___
290 $code.=<<___ if ($SZ==8);
291 .quad 0x428a2f98d728ae22,0x7137449123ef65cd
292 .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
293 .quad 0x3956c25bf348b538,0x59f111f1b605d019
294 .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
295 .quad 0xd807aa98a3030242,0x12835b0145706fbe
296 .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
297 .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
298 .quad 0x9bdc06a725c71235,0xc19bf174cf692694
299 .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
300 .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
301 .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
302 .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
303 .quad 0x983e5152ee66dfab,0xa831c66d2db43210
304 .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
305 .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
306 .quad 0x06ca6351e003826f,0x142929670a0e6e70
307 .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
308 .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
309 .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
310 .quad 0x81c2c92e47edaee6,0x92722c851482353b
311 .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
312 .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
313 .quad 0xd192e819d6ef5218,0xd69906245565a910
314 .quad 0xf40e35855771202a,0x106aa07032bbd1b8
315 .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
316 .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
317 .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
318 .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
319 .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
320 .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
321 .quad 0x90befffa23631e28,0xa4506cebde82bde9
322 .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
323 .quad 0xca273eceea26619c,0xd186b8c721c0c207
324 .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
325 .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
326 .quad 0x113f9804bef90dae,0x1b710b35131c471b
327 .quad 0x28db77f523047d84,0x32caab7b40c72493
328 .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
329 .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
330 .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
331 .quad 0 // terminator
332 ___
333 $code.=<<___ if ($SZ==4);
334 .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
335 .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
336 .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
337 .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
338 .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
339 .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
340 .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
341 .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
342 .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
343 .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
344 .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
345 .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
346 .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
347 .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
348 .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
349 .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
350 .long 0 //terminator
351 ___
352 $code.=<<___;
353 .size .LK$BITS,.-.LK$BITS
354 #ifndef __KERNEL__
355 .align 3
356 .LOPENSSL_armcap_P:
357 # ifdef __ILP32__
358 .long OPENSSL_armcap_P-.
359 # else
360 .quad OPENSSL_armcap_P-.
361 # endif
362 #endif
363 .asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
364 .align 2
365 ___
366
367 if ($SZ==4) {
368 my $Ktbl="x3";
369
370 my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2));
371 my @MSG=map("v$_.16b",(4..7));
372 my ($W0,$W1)=("v16.4s","v17.4s");
373 my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b");
374
375 $code.=<<___;
376 #ifndef __KERNEL__
377 .type sha256_block_armv8,%function
378 .align 6
379 sha256_block_armv8:
380 .Lv8_entry:
381 stp x29,x30,[sp,#-16]!
382 add x29,sp,#0
383
384 ld1.32 {$ABCD,$EFGH},[$ctx]
385 adr $Ktbl,.LK256
386
387 .Loop_hw:
388 ld1 {@MSG[0]-@MSG[3]},[$inp],#64
389 sub $num,$num,#1
390 ld1.32 {$W0},[$Ktbl],#16
391 rev32 @MSG[0],@MSG[0]
392 rev32 @MSG[1],@MSG[1]
393 rev32 @MSG[2],@MSG[2]
394 rev32 @MSG[3],@MSG[3]
395 orr $ABCD_SAVE,$ABCD,$ABCD // offload
396 orr $EFGH_SAVE,$EFGH,$EFGH
397 ___
398 for($i=0;$i<12;$i++) {
399 $code.=<<___;
400 ld1.32 {$W1},[$Ktbl],#16
401 add.i32 $W0,$W0,@MSG[0]
402 sha256su0 @MSG[0],@MSG[1]
403 orr $abcd,$ABCD,$ABCD
404 sha256h $ABCD,$EFGH,$W0
405 sha256h2 $EFGH,$abcd,$W0
406 sha256su1 @MSG[0],@MSG[2],@MSG[3]
407 ___
408 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
409 }
410 $code.=<<___;
411 ld1.32 {$W1},[$Ktbl],#16
412 add.i32 $W0,$W0,@MSG[0]
413 orr $abcd,$ABCD,$ABCD
414 sha256h $ABCD,$EFGH,$W0
415 sha256h2 $EFGH,$abcd,$W0
416
417 ld1.32 {$W0},[$Ktbl],#16
418 add.i32 $W1,$W1,@MSG[1]
419 orr $abcd,$ABCD,$ABCD
420 sha256h $ABCD,$EFGH,$W1
421 sha256h2 $EFGH,$abcd,$W1
422
423 ld1.32 {$W1},[$Ktbl]
424 add.i32 $W0,$W0,@MSG[2]
425 sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind
426 orr $abcd,$ABCD,$ABCD
427 sha256h $ABCD,$EFGH,$W0
428 sha256h2 $EFGH,$abcd,$W0
429
430 add.i32 $W1,$W1,@MSG[3]
431 orr $abcd,$ABCD,$ABCD
432 sha256h $ABCD,$EFGH,$W1
433 sha256h2 $EFGH,$abcd,$W1
434
435 add.i32 $ABCD,$ABCD,$ABCD_SAVE
436 add.i32 $EFGH,$EFGH,$EFGH_SAVE
437
438 cbnz $num,.Loop_hw
439
440 st1.32 {$ABCD,$EFGH},[$ctx]
441
442 ldr x29,[sp],#16
443 ret
444 .size sha256_block_armv8,.-sha256_block_armv8
445 #endif
446 ___
447 }
448
449 if ($SZ==4) { ######################################### NEON stuff #
450 # You'll surely note a lot of similarities with sha256-armv4 module,
451 # and of course it's not a coincidence. sha256-armv4 was used as
452 # initial template, but was adapted for ARMv8 instruction set and
453 # extensively re-tuned for all-round performance.
454
455 my @V = ($A,$B,$C,$D,$E,$F,$G,$H) = map("w$_",(3..10));
456 my ($t0,$t1,$t2,$t3,$t4) = map("w$_",(11..15));
457 my $Ktbl="x16";
458 my $Xfer="x17";
459 my @X = map("q$_",(0..3));
460 my ($T0,$T1,$T2,$T3,$T4,$T5,$T6,$T7) = map("q$_",(4..7,16..19));
461 my $j=0;
462
463 sub AUTOLOAD() # thunk [simplified] x86-style perlasm
464 { my $opcode = $AUTOLOAD; $opcode =~ s/.*:://; $opcode =~ s/_/\./;
465 my $arg = pop;
466 $arg = "#$arg" if ($arg*1 eq $arg);
467 $code .= "\t$opcode\t".join(',',@_,$arg)."\n";
468 }
469
470 sub Dscalar { shift =~ m|[qv]([0-9]+)|?"d$1":""; }
471 sub Dlo { shift =~ m|[qv]([0-9]+)|?"v$1.d[0]":""; }
472 sub Dhi { shift =~ m|[qv]([0-9]+)|?"v$1.d[1]":""; }
473
474 sub Xupdate()
475 { use integer;
476 my $body = shift;
477 my @insns = (&$body,&$body,&$body,&$body);
478 my ($a,$b,$c,$d,$e,$f,$g,$h);
479
480 &ext_8 ($T0,@X[0],@X[1],4); # X[1..4]
481 eval(shift(@insns));
482 eval(shift(@insns));
483 eval(shift(@insns));
484 &ext_8 ($T3,@X[2],@X[3],4); # X[9..12]
485 eval(shift(@insns));
486 eval(shift(@insns));
487 &mov (&Dscalar($T7),&Dhi(@X[3])); # X[14..15]
488 eval(shift(@insns));
489 eval(shift(@insns));
490 &ushr_32 ($T2,$T0,$sigma0[0]);
491 eval(shift(@insns));
492 &ushr_32 ($T1,$T0,$sigma0[2]);
493 eval(shift(@insns));
494 &add_32 (@X[0],@X[0],$T3); # X[0..3] += X[9..12]
495 eval(shift(@insns));
496 &sli_32 ($T2,$T0,32-$sigma0[0]);
497 eval(shift(@insns));
498 eval(shift(@insns));
499 &ushr_32 ($T3,$T0,$sigma0[1]);
500 eval(shift(@insns));
501 eval(shift(@insns));
502 &eor_8 ($T1,$T1,$T2);
503 eval(shift(@insns));
504 eval(shift(@insns));
505 &sli_32 ($T3,$T0,32-$sigma0[1]);
506 eval(shift(@insns));
507 eval(shift(@insns));
508 &ushr_32 ($T4,$T7,$sigma1[0]);
509 eval(shift(@insns));
510 eval(shift(@insns));
511 &eor_8 ($T1,$T1,$T3); # sigma0(X[1..4])
512 eval(shift(@insns));
513 eval(shift(@insns));
514 &sli_32 ($T4,$T7,32-$sigma1[0]);
515 eval(shift(@insns));
516 eval(shift(@insns));
517 &ushr_32 ($T5,$T7,$sigma1[2]);
518 eval(shift(@insns));
519 eval(shift(@insns));
520 &ushr_32 ($T3,$T7,$sigma1[1]);
521 eval(shift(@insns));
522 eval(shift(@insns));
523 &add_32 (@X[0],@X[0],$T1); # X[0..3] += sigma0(X[1..4])
524 eval(shift(@insns));
525 eval(shift(@insns));
526 &sli_u32 ($T3,$T7,32-$sigma1[1]);
527 eval(shift(@insns));
528 eval(shift(@insns));
529 &eor_8 ($T5,$T5,$T4);
530 eval(shift(@insns));
531 eval(shift(@insns));
532 eval(shift(@insns));
533 &eor_8 ($T5,$T5,$T3); # sigma1(X[14..15])
534 eval(shift(@insns));
535 eval(shift(@insns));
536 eval(shift(@insns));
537 &add_32 (@X[0],@X[0],$T5); # X[0..1] += sigma1(X[14..15])
538 eval(shift(@insns));
539 eval(shift(@insns));
540 eval(shift(@insns));
541 &ushr_32 ($T6,@X[0],$sigma1[0]);
542 eval(shift(@insns));
543 &ushr_32 ($T7,@X[0],$sigma1[2]);
544 eval(shift(@insns));
545 eval(shift(@insns));
546 &sli_32 ($T6,@X[0],32-$sigma1[0]);
547 eval(shift(@insns));
548 &ushr_32 ($T5,@X[0],$sigma1[1]);
549 eval(shift(@insns));
550 eval(shift(@insns));
551 &eor_8 ($T7,$T7,$T6);
552 eval(shift(@insns));
553 eval(shift(@insns));
554 &sli_32 ($T5,@X[0],32-$sigma1[1]);
555 eval(shift(@insns));
556 eval(shift(@insns));
557 &ld1_32 ("{$T0}","[$Ktbl], #16");
558 eval(shift(@insns));
559 &eor_8 ($T7,$T7,$T5); # sigma1(X[16..17])
560 eval(shift(@insns));
561 eval(shift(@insns));
562 &eor_8 ($T5,$T5,$T5);
563 eval(shift(@insns));
564 eval(shift(@insns));
565 &mov (&Dhi($T5), &Dlo($T7));
566 eval(shift(@insns));
567 eval(shift(@insns));
568 eval(shift(@insns));
569 &add_32 (@X[0],@X[0],$T5); # X[2..3] += sigma1(X[16..17])
570 eval(shift(@insns));
571 eval(shift(@insns));
572 eval(shift(@insns));
573 &add_32 ($T0,$T0,@X[0]);
574 while($#insns>=1) { eval(shift(@insns)); }
575 &st1_32 ("{$T0}","[$Xfer], #16");
576 eval(shift(@insns));
577
578 push(@X,shift(@X)); # "rotate" X[]
579 }
580
581 sub Xpreload()
582 { use integer;
583 my $body = shift;
584 my @insns = (&$body,&$body,&$body,&$body);
585 my ($a,$b,$c,$d,$e,$f,$g,$h);
586
587 eval(shift(@insns));
588 eval(shift(@insns));
589 &ld1_8 ("{@X[0]}","[$inp],#16");
590 eval(shift(@insns));
591 eval(shift(@insns));
592 &ld1_32 ("{$T0}","[$Ktbl],#16");
593 eval(shift(@insns));
594 eval(shift(@insns));
595 eval(shift(@insns));
596 eval(shift(@insns));
597 &rev32 (@X[0],@X[0]);
598 eval(shift(@insns));
599 eval(shift(@insns));
600 eval(shift(@insns));
601 eval(shift(@insns));
602 &add_32 ($T0,$T0,@X[0]);
603 foreach (@insns) { eval; } # remaining instructions
604 &st1_32 ("{$T0}","[$Xfer], #16");
605
606 push(@X,shift(@X)); # "rotate" X[]
607 }
608
609 sub body_00_15 () {
610 (
611 '($a,$b,$c,$d,$e,$f,$g,$h)=@V;'.
612 '&add ($h,$h,$t1)', # h+=X[i]+K[i]
613 '&add ($a,$a,$t4);'. # h+=Sigma0(a) from the past
614 '&and ($t1,$f,$e)',
615 '&bic ($t4,$g,$e)',
616 '&eor ($t0,$e,$e,"ror#".($Sigma1[1]-$Sigma1[0]))',
617 '&add ($a,$a,$t2)', # h+=Maj(a,b,c) from the past
618 '&orr ($t1,$t1,$t4)', # Ch(e,f,g)
619 '&eor ($t0,$t0,$e,"ror#".($Sigma1[2]-$Sigma1[0]))', # Sigma1(e)
620 '&eor ($t4,$a,$a,"ror#".($Sigma0[1]-$Sigma0[0]))',
621 '&add ($h,$h,$t1)', # h+=Ch(e,f,g)
622 '&ror ($t0,$t0,"#$Sigma1[0]")',
623 '&eor ($t2,$a,$b)', # a^b, b^c in next round
624 '&eor ($t4,$t4,$a,"ror#".($Sigma0[2]-$Sigma0[0]))', # Sigma0(a)
625 '&add ($h,$h,$t0)', # h+=Sigma1(e)
626 '&ldr ($t1,sprintf "[sp,#%d]",4*(($j+1)&15)) if (($j&15)!=15);'.
627 '&ldr ($t1,"[$Ktbl]") if ($j==15);'.
628 '&and ($t3,$t3,$t2)', # (b^c)&=(a^b)
629 '&ror ($t4,$t4,"#$Sigma0[0]")',
630 '&add ($d,$d,$h)', # d+=h
631 '&eor ($t3,$t3,$b)', # Maj(a,b,c)
632 '$j++; unshift(@V,pop(@V)); ($t2,$t3)=($t3,$t2);'
633 )
634 }
635
636 $code.=<<___;
637 #ifdef __KERNEL__
638 .globl sha256_block_neon
639 #endif
640 .type sha256_block_neon,%function
641 .align 4
642 sha256_block_neon:
643 .Lneon_entry:
644 stp x29, x30, [sp, #-16]!
645 mov x29, sp
646 sub sp,sp,#16*4
647
648 adr $Ktbl,.LK256
649 add $num,$inp,$num,lsl#6 // len to point at the end of inp
650
651 ld1.8 {@X[0]},[$inp], #16
652 ld1.8 {@X[1]},[$inp], #16
653 ld1.8 {@X[2]},[$inp], #16
654 ld1.8 {@X[3]},[$inp], #16
655 ld1.32 {$T0},[$Ktbl], #16
656 ld1.32 {$T1},[$Ktbl], #16
657 ld1.32 {$T2},[$Ktbl], #16
658 ld1.32 {$T3},[$Ktbl], #16
659 rev32 @X[0],@X[0] // yes, even on
660 rev32 @X[1],@X[1] // big-endian
661 rev32 @X[2],@X[2]
662 rev32 @X[3],@X[3]
663 mov $Xfer,sp
664 add.32 $T0,$T0,@X[0]
665 add.32 $T1,$T1,@X[1]
666 add.32 $T2,$T2,@X[2]
667 st1.32 {$T0-$T1},[$Xfer], #32
668 add.32 $T3,$T3,@X[3]
669 st1.32 {$T2-$T3},[$Xfer]
670 sub $Xfer,$Xfer,#32
671
672 ldp $A,$B,[$ctx]
673 ldp $C,$D,[$ctx,#8]
674 ldp $E,$F,[$ctx,#16]
675 ldp $G,$H,[$ctx,#24]
676 ldr $t1,[sp,#0]
677 mov $t2,wzr
678 eor $t3,$B,$C
679 mov $t4,wzr
680 b .L_00_48
681
682 .align 4
683 .L_00_48:
684 ___
685 &Xupdate(\&body_00_15);
686 &Xupdate(\&body_00_15);
687 &Xupdate(\&body_00_15);
688 &Xupdate(\&body_00_15);
689 $code.=<<___;
690 cmp $t1,#0 // check for K256 terminator
691 ldr $t1,[sp,#0]
692 sub $Xfer,$Xfer,#64
693 bne .L_00_48
694
695 sub $Ktbl,$Ktbl,#256 // rewind $Ktbl
696 cmp $inp,$num
697 mov $Xfer, #64
698 csel $Xfer, $Xfer, xzr, eq
699 sub $inp,$inp,$Xfer // avoid SEGV
700 mov $Xfer,sp
701 ___
702 &Xpreload(\&body_00_15);
703 &Xpreload(\&body_00_15);
704 &Xpreload(\&body_00_15);
705 &Xpreload(\&body_00_15);
706 $code.=<<___;
707 add $A,$A,$t4 // h+=Sigma0(a) from the past
708 ldp $t0,$t1,[$ctx,#0]
709 add $A,$A,$t2 // h+=Maj(a,b,c) from the past
710 ldp $t2,$t3,[$ctx,#8]
711 add $A,$A,$t0 // accumulate
712 add $B,$B,$t1
713 ldp $t0,$t1,[$ctx,#16]
714 add $C,$C,$t2
715 add $D,$D,$t3
716 ldp $t2,$t3,[$ctx,#24]
717 add $E,$E,$t0
718 add $F,$F,$t1
719 ldr $t1,[sp,#0]
720 stp $A,$B,[$ctx,#0]
721 add $G,$G,$t2
722 mov $t2,wzr
723 stp $C,$D,[$ctx,#8]
724 add $H,$H,$t3
725 stp $E,$F,[$ctx,#16]
726 eor $t3,$B,$C
727 stp $G,$H,[$ctx,#24]
728 mov $t4,wzr
729 mov $Xfer,sp
730 b.ne .L_00_48
731
732 ldr x29,[x29]
733 add sp,sp,#16*4+16
734 ret
735 .size sha256_block_neon,.-sha256_block_neon
736 ___
737 }
738
739 if ($SZ==8) {
740 my $Ktbl="x3";
741
742 my @H = map("v$_.16b",(0..4));
743 my ($fg,$de,$m9_10)=map("v$_.16b",(5..7));
744 my @MSG=map("v$_.16b",(16..23));
745 my ($W0,$W1)=("v24.2d","v25.2d");
746 my ($AB,$CD,$EF,$GH)=map("v$_.16b",(26..29));
747
748 $code.=<<___;
749 #ifndef __KERNEL__
750 .type sha512_block_armv8,%function
751 .align 6
752 sha512_block_armv8:
753 .Lv8_entry:
754 stp x29,x30,[sp,#-16]!
755 add x29,sp,#0
756
757 ld1 {@MSG[0]-@MSG[3]},[$inp],#64 // load input
758 ld1 {@MSG[4]-@MSG[7]},[$inp],#64
759
760 ld1.64 {@H[0]-@H[3]},[$ctx] // load context
761 adr $Ktbl,.LK512
762
763 rev64 @MSG[0],@MSG[0]
764 rev64 @MSG[1],@MSG[1]
765 rev64 @MSG[2],@MSG[2]
766 rev64 @MSG[3],@MSG[3]
767 rev64 @MSG[4],@MSG[4]
768 rev64 @MSG[5],@MSG[5]
769 rev64 @MSG[6],@MSG[6]
770 rev64 @MSG[7],@MSG[7]
771 b .Loop_hw
772
773 .align 4
774 .Loop_hw:
775 ld1.64 {$W0},[$Ktbl],#16
776 subs $num,$num,#1
777 sub x4,$inp,#128
778 orr $AB,@H[0],@H[0] // offload
779 orr $CD,@H[1],@H[1]
780 orr $EF,@H[2],@H[2]
781 orr $GH,@H[3],@H[3]
782 csel $inp,$inp,x4,ne // conditional rewind
783 ___
784 for($i=0;$i<32;$i++) {
785 $code.=<<___;
786 add.i64 $W0,$W0,@MSG[0]
787 ld1.64 {$W1},[$Ktbl],#16
788 ext $W0,$W0,$W0,#8
789 ext $fg,@H[2],@H[3],#8
790 ext $de,@H[1],@H[2],#8
791 add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]"
792 sha512su0 @MSG[0],@MSG[1]
793 ext $m9_10,@MSG[4],@MSG[5],#8
794 sha512h @H[3],$fg,$de
795 sha512su1 @MSG[0],@MSG[7],$m9_10
796 add.i64 @H[4],@H[1],@H[3] // "D + T1"
797 sha512h2 @H[3],$H[1],@H[0]
798 ___
799 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
800 @H = (@H[3],@H[0],@H[4],@H[2],@H[1]);
801 }
802 for(;$i<40;$i++) {
803 $code.=<<___ if ($i<39);
804 ld1.64 {$W1},[$Ktbl],#16
805 ___
806 $code.=<<___ if ($i==39);
807 sub $Ktbl,$Ktbl,#$rounds*$SZ // rewind
808 ___
809 $code.=<<___;
810 add.i64 $W0,$W0,@MSG[0]
811 ld1 {@MSG[0]},[$inp],#16 // load next input
812 ext $W0,$W0,$W0,#8
813 ext $fg,@H[2],@H[3],#8
814 ext $de,@H[1],@H[2],#8
815 add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]"
816 sha512h @H[3],$fg,$de
817 rev64 @MSG[0],@MSG[0]
818 add.i64 @H[4],@H[1],@H[3] // "D + T1"
819 sha512h2 @H[3],$H[1],@H[0]
820 ___
821 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG));
822 @H = (@H[3],@H[0],@H[4],@H[2],@H[1]);
823 }
824 $code.=<<___;
825 add.i64 @H[0],@H[0],$AB // accumulate
826 add.i64 @H[1],@H[1],$CD
827 add.i64 @H[2],@H[2],$EF
828 add.i64 @H[3],@H[3],$GH
829
830 cbnz $num,.Loop_hw
831
832 st1.64 {@H[0]-@H[3]},[$ctx] // store context
833
834 ldr x29,[sp],#16
835 ret
836 .size sha512_block_armv8,.-sha512_block_armv8
837 #endif
838 ___
839 }
840
841 $code.=<<___;
842 #ifndef __KERNEL__
843 .comm OPENSSL_armcap_P,4,4
844 #endif
845 ___
846
847 { my %opcode = (
848 "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000,
849 "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 );
850
851 sub unsha256 {
852 my ($mnemonic,$arg)=@_;
853
854 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
855 &&
856 sprintf ".inst\t0x%08x\t//%s %s",
857 $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
858 $mnemonic,$arg;
859 }
860 }
861
862 { my %opcode = (
863 "sha512h" => 0xce608000, "sha512h2" => 0xce608400,
864 "sha512su0" => 0xcec08000, "sha512su1" => 0xce608800 );
865
866 sub unsha512 {
867 my ($mnemonic,$arg)=@_;
868
869 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o
870 &&
871 sprintf ".inst\t0x%08x\t//%s %s",
872 $opcode{$mnemonic}|$1|($2<<5)|($3<<16),
873 $mnemonic,$arg;
874 }
875 }
876
877 open SELF,$0;
878 while(<SELF>) {
879 next if (/^#!/);
880 last if (!s/^#/\/\// and !/^$/);
881 print;
882 }
883 close SELF;
884
885 foreach(split("\n",$code)) {
886
887 s/\`([^\`]*)\`/eval($1)/ge;
888
889 s/\b(sha512\w+)\s+([qv].*)/unsha512($1,$2)/ge or
890 s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/ge;
891
892 s/\bq([0-9]+)\b/v$1.16b/g; # old->new registers
893
894 s/\.[ui]?8(\s)/$1/;
895 s/\.\w?64\b// and s/\.16b/\.2d/g or
896 s/\.\w?32\b// and s/\.16b/\.4s/g;
897 m/\bext\b/ and s/\.2d/\.16b/g or
898 m/(ld|st)1[^\[]+\[0\]/ and s/\.4s/\.s/g;
899
900 print $_,"\n";
901 }
902
903 close STDOUT;
A mirror of the official openssl repository