2 # Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
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
10 # ====================================================================
11 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
12 # project. The module is, however, dual licensed under OpenSSL and
13 # CRYPTOGAMS licenses depending on where you obtain it. For further
14 # details see http://www.openssl.org/~appro/cryptogams/.
15 # ====================================================================
17 # SHA2 block procedures for MIPS.
21 # SHA256 performance improvement on MIPS R5000 CPU is ~27% over gcc-
22 # generated code in o32 build and ~55% in n32/64 build. SHA512 [which
23 # for now can only be compiled for MIPS64 ISA] improvement is modest
24 # ~17%, but it comes for free, because it's same instruction sequence.
25 # Improvement coefficients are for aligned input.
29 # Add MIPS[32|64]R2 code (>25% less instructions).
31 ######################################################################
32 # There is a number of MIPS ABI in use, O32 and N32/64 are most
33 # widely used. Then there is a new contender: NUBI. It appears that if
34 # one picks the latter, it's possible to arrange code in ABI neutral
35 # manner. Therefore let's stick to NUBI register layout:
37 ($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
38 ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
39 ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
40 ($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
42 # The return value is placed in $a0. Following coding rules facilitate
45 # - never ever touch $tp, "thread pointer", former $gp [o32 can be
46 # excluded from the rule, because it's specified volatile];
47 # - copy return value to $t0, former $v0 [or to $a0 if you're adapting
49 # - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
51 # For reference here is register layout for N32/64 MIPS ABIs:
53 # ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
54 # ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
55 # ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
56 # ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
57 # ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
59 $flavour = shift || "o32"; # supported flavours are o32,n32,64,nubi32,nubi64
61 if ($flavour =~ /64|n32/i) {
63 $PTR_ADD="daddu"; # incidentally works even on n32
64 $PTR_SUB="dsubu"; # incidentally works even on n32
67 $PTR_SLL="dsll"; # incidentally works even on n32
78 $pf = ($flavour =~ /nubi/i) ? $t0 : $t2;
82 ######################################################################
84 $big_endian=(`echo MIPSEB | $ENV{CC} -E -`=~/MIPSEB/)?0:1 if ($ENV{CC});
86 for (@ARGV) { $output=$_ if (/\w[\w\-]*\.\w+$/); }
87 open STDOUT,">$output";
89 if (!defined($big_endian)) { $big_endian=(unpack('L',pack('N',1))==1); }
91 if ($output =~ /512/) {
94 $LD="ld"; # load from memory
95 $ST="sd"; # store to memory
96 $SLL="dsll"; # shift left logical
97 $SRL="dsrl"; # shift right logical
102 @sigma0=( 7, 1, 8); # right shift first
103 @sigma1=( 6,19,61); # right shift first
109 $LD="lw"; # load from memory
110 $ST="sw"; # store to memory
111 $SLL="sll"; # shift left logical
112 $SRL="srl"; # shift right logical
117 @sigma0=( 3, 7,18); # right shift first
118 @sigma1=(10,17,19); # right shift first
123 $MSB = $big_endian ? 0 : ($SZ-1);
124 $LSB = ($SZ-1)&~$MSB;
126 @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("\$$_",(1,2,3,7,24,25,30,31));
127 @X=map("\$$_",(8..23));
131 $len=$a2; $Ktbl=$len;
134 my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
135 my ($T1,$tmp0,$tmp1,$tmp2)=(@X[4],@X[5],@X[6],@X[7]);
137 $code.=<<___ if ($i<15);
138 #if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
139 ${LD} @X[1],`($i+1)*$SZ`($inp)
141 ${LD}l @X[1],`($i+1)*$SZ+$MSB`($inp)
142 ${LD}r @X[1],`($i+1)*$SZ+$LSB`($inp)
145 $code.=<<___ if (!$big_endian && $i<16 && $SZ==4);
146 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
147 wsbh @X[0],@X[0] # byte swap($i)
150 srl $tmp0,@X[0],24 # byte swap($i)
152 andi $tmp2,@X[0],0xFF00
161 $code.=<<___ if (!$big_endian && $i<16 && $SZ==8);
162 #if defined(_MIPS_ARCH_MIPS64R2)
163 dsbh @X[0],@X[0] # byte swap($i)
168 or $tmp0,$tmp2 # 0x000000FF000000FF
169 and $tmp1,@X[0],$tmp0 # byte swap($i)
173 dsll $tmp0,8 # 0x0000FF000000FF00
175 and $tmp2,@X[0],$tmp0
187 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
189 $ROTR $tmp0,$e,@Sigma1[0]
191 $ROTR $tmp1,$e,@Sigma1[1]
193 $ROTR $h,$e,@Sigma1[2]
195 $ROTR $tmp1,$a,@Sigma0[0]
196 xor $tmp2,$g # Ch(e,f,g)
197 xor $tmp0,$h # Sigma1(e)
199 $ROTR $h,$a,@Sigma0[1]
201 $LD $tmp2,`$i*$SZ`($Ktbl) # K[$i]
203 $ROTR $tmp1,$a,@Sigma0[2]
206 xor $h,$tmp1 # Sigma0(a)
209 $ADDU $T1,$X[0],$h # $i
210 $SRL $h,$e,@Sigma1[0]
212 $SLL $tmp1,$e,`$SZ*8-@Sigma1[2]`
214 $SRL $tmp0,$e,@Sigma1[1]
216 $SLL $tmp1,$e,`$SZ*8-@Sigma1[1]`
218 $SRL $tmp0,$e,@Sigma1[2]
220 $SLL $tmp1,$e,`$SZ*8-@Sigma1[0]`
222 xor $tmp2,$g # Ch(e,f,g)
223 xor $tmp0,$tmp1,$h # Sigma1(e)
225 $SRL $h,$a,@Sigma0[0]
227 $LD $tmp2,`$i*$SZ`($Ktbl) # K[$i]
228 $SLL $tmp1,$a,`$SZ*8-@Sigma0[2]`
230 $SRL $tmp0,$a,@Sigma0[1]
232 $SLL $tmp1,$a,`$SZ*8-@Sigma0[1]`
234 $SRL $tmp0,$a,@Sigma0[2]
236 $SLL $tmp1,$a,`$SZ*8-@Sigma0[0]`
239 xor $h,$tmp1 # Sigma0(a)
242 $ST @X[0],`($i%16)*$SZ`($sp) # offload to ring buffer
245 $ADDU $T1,$tmp2 # +=K[$i]
246 $ADDU $h,$tmp1 # +=Maj(a,b,c)
250 $code.=<<___ if ($i>=13);
251 $LD @X[3],`(($i+3)%16)*$SZ`($sp) # prefetch from ring buffer
257 my ($tmp0,$tmp1,$tmp2,$tmp3)=(@X[4],@X[5],@X[6],@X[7]);
260 #if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
261 $SRL $tmp2,@X[1],@sigma0[0] # Xupdate($i)
262 $ROTR $tmp0,@X[1],@sigma0[1]
263 $ADDU @X[0],@X[9] # +=X[i+9]
265 $ROTR $tmp0,@X[1],@sigma0[2]
267 $SRL $tmp3,@X[14],@sigma1[0]
268 $ROTR $tmp1,@X[14],@sigma1[1]
269 xor $tmp2,$tmp0 # sigma0(X[i+1])
270 $ROTR $tmp0,@X[14],@sigma1[2]
274 $SRL $tmp2,@X[1],@sigma0[0] # Xupdate($i)
275 $ADDU @X[0],@X[9] # +=X[i+9]
276 $SLL $tmp1,@X[1],`$SZ*8-@sigma0[2]`
277 $SRL $tmp0,@X[1],@sigma0[1]
279 $SLL $tmp1,`@sigma0[2]-@sigma0[1]`
281 $SRL $tmp0,@X[1],@sigma0[2]
284 $SRL $tmp3,@X[14],@sigma1[0]
285 xor $tmp2,$tmp0 # sigma0(X[i+1])
286 $SLL $tmp1,@X[14],`$SZ*8-@sigma1[2]`
288 $SRL $tmp0,@X[14],@sigma1[1]
290 $SLL $tmp1,`@sigma1[2]-@sigma1[1]`
292 $SRL $tmp0,@X[14],@sigma1[2]
295 xor $tmp3,$tmp0 # sigma1(X[i+14])
301 $FRAMESIZE=16*$SZ+16*$SZREG;
302 $SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0xc0fff008" : "0xc0ff0000";
305 #include "mips_arch.h"
309 #if !defined(__mips_eabi) && (!defined(__vxworks) || defined(__pic__))
314 .globl sha${label}_block_data_order
315 .ent sha${label}_block_data_order
316 sha${label}_block_data_order:
317 .frame $sp,$FRAMESIZE,$ra
318 .mask $SAVED_REGS_MASK,-$SZREG
321 $code.=<<___ if ($flavour =~ /o32/i); # o32 PIC-ification
325 $PTR_SUB $sp,$FRAMESIZE
326 $REG_S $ra,$FRAMESIZE-1*$SZREG($sp)
327 $REG_S $fp,$FRAMESIZE-2*$SZREG($sp)
328 $REG_S $s11,$FRAMESIZE-3*$SZREG($sp)
329 $REG_S $s10,$FRAMESIZE-4*$SZREG($sp)
330 $REG_S $s9,$FRAMESIZE-5*$SZREG($sp)
331 $REG_S $s8,$FRAMESIZE-6*$SZREG($sp)
332 $REG_S $s7,$FRAMESIZE-7*$SZREG($sp)
333 $REG_S $s6,$FRAMESIZE-8*$SZREG($sp)
334 $REG_S $s5,$FRAMESIZE-9*$SZREG($sp)
335 $REG_S $s4,$FRAMESIZE-10*$SZREG($sp)
337 $code.=<<___ if ($flavour =~ /nubi/i); # optimize non-nubi prologue
338 $REG_S $s3,$FRAMESIZE-11*$SZREG($sp)
339 $REG_S $s2,$FRAMESIZE-12*$SZREG($sp)
340 $REG_S $s1,$FRAMESIZE-13*$SZREG($sp)
341 $REG_S $s0,$FRAMESIZE-14*$SZREG($sp)
342 $REG_S $gp,$FRAMESIZE-15*$SZREG($sp)
345 $PTR_SLL @X[15],$len,`log(16*$SZ)/log(2)`
347 $code.=<<___ if ($flavour !~ /o32/i); # non-o32 PIC-ification
349 .cpsetup $pf,$zero,sha${label}_block_data_order
353 $PTR_LA $Ktbl,K${label} # PIC-ified 'load address'
355 $LD $A,0*$SZ($ctx) # load context
364 $PTR_ADD @X[15],$inp # pointer to the end of input
365 $REG_S @X[15],16*$SZ($sp)
370 #if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
373 ${LD}l @X[0],$MSB($inp)
374 ${LD}r @X[0],$LSB($inp)
377 for ($i=0;$i<16;$i++)
378 { &BODY_00_15($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
385 { &BODY_16_XX($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
390 bne @X[6],@X[7],.L16_xx
391 $PTR_ADD $Ktbl,16*$SZ # Ktbl+=16
393 $REG_L @X[15],16*$SZ($sp) # restore pointer to the end of input
394 $LD @X[0],0*$SZ($ctx)
395 $LD @X[1],1*$SZ($ctx)
396 $LD @X[2],2*$SZ($ctx)
398 $LD @X[3],3*$SZ($ctx)
400 $LD @X[4],4*$SZ($ctx)
402 $LD @X[5],5*$SZ($ctx)
404 $LD @X[6],6*$SZ($ctx)
406 $LD @X[7],7*$SZ($ctx)
420 bne $inp,@X[15],.Loop
421 $PTR_SUB $Ktbl,`($rounds-16)*$SZ` # rewind $Ktbl
423 $REG_L $ra,$FRAMESIZE-1*$SZREG($sp)
424 $REG_L $fp,$FRAMESIZE-2*$SZREG($sp)
425 $REG_L $s11,$FRAMESIZE-3*$SZREG($sp)
426 $REG_L $s10,$FRAMESIZE-4*$SZREG($sp)
427 $REG_L $s9,$FRAMESIZE-5*$SZREG($sp)
428 $REG_L $s8,$FRAMESIZE-6*$SZREG($sp)
429 $REG_L $s7,$FRAMESIZE-7*$SZREG($sp)
430 $REG_L $s6,$FRAMESIZE-8*$SZREG($sp)
431 $REG_L $s5,$FRAMESIZE-9*$SZREG($sp)
432 $REG_L $s4,$FRAMESIZE-10*$SZREG($sp)
434 $code.=<<___ if ($flavour =~ /nubi/i);
435 $REG_L $s3,$FRAMESIZE-11*$SZREG($sp)
436 $REG_L $s2,$FRAMESIZE-12*$SZREG($sp)
437 $REG_L $s1,$FRAMESIZE-13*$SZREG($sp)
438 $REG_L $s0,$FRAMESIZE-14*$SZREG($sp)
439 $REG_L $gp,$FRAMESIZE-15*$SZREG($sp)
443 $PTR_ADD $sp,$FRAMESIZE
444 .end sha${label}_block_data_order
452 .word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
453 .word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
454 .word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
455 .word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
456 .word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
457 .word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
458 .word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
459 .word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
460 .word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
461 .word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
462 .word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
463 .word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
464 .word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
465 .word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
466 .word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
467 .word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
471 .dword 0x428a2f98d728ae22, 0x7137449123ef65cd
472 .dword 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc
473 .dword 0x3956c25bf348b538, 0x59f111f1b605d019
474 .dword 0x923f82a4af194f9b, 0xab1c5ed5da6d8118
475 .dword 0xd807aa98a3030242, 0x12835b0145706fbe
476 .dword 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2
477 .dword 0x72be5d74f27b896f, 0x80deb1fe3b1696b1
478 .dword 0x9bdc06a725c71235, 0xc19bf174cf692694
479 .dword 0xe49b69c19ef14ad2, 0xefbe4786384f25e3
480 .dword 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65
481 .dword 0x2de92c6f592b0275, 0x4a7484aa6ea6e483
482 .dword 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5
483 .dword 0x983e5152ee66dfab, 0xa831c66d2db43210
484 .dword 0xb00327c898fb213f, 0xbf597fc7beef0ee4
485 .dword 0xc6e00bf33da88fc2, 0xd5a79147930aa725
486 .dword 0x06ca6351e003826f, 0x142929670a0e6e70
487 .dword 0x27b70a8546d22ffc, 0x2e1b21385c26c926
488 .dword 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df
489 .dword 0x650a73548baf63de, 0x766a0abb3c77b2a8
490 .dword 0x81c2c92e47edaee6, 0x92722c851482353b
491 .dword 0xa2bfe8a14cf10364, 0xa81a664bbc423001
492 .dword 0xc24b8b70d0f89791, 0xc76c51a30654be30
493 .dword 0xd192e819d6ef5218, 0xd69906245565a910
494 .dword 0xf40e35855771202a, 0x106aa07032bbd1b8
495 .dword 0x19a4c116b8d2d0c8, 0x1e376c085141ab53
496 .dword 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8
497 .dword 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb
498 .dword 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3
499 .dword 0x748f82ee5defb2fc, 0x78a5636f43172f60
500 .dword 0x84c87814a1f0ab72, 0x8cc702081a6439ec
501 .dword 0x90befffa23631e28, 0xa4506cebde82bde9
502 .dword 0xbef9a3f7b2c67915, 0xc67178f2e372532b
503 .dword 0xca273eceea26619c, 0xd186b8c721c0c207
504 .dword 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178
505 .dword 0x06f067aa72176fba, 0x0a637dc5a2c898a6
506 .dword 0x113f9804bef90dae, 0x1b710b35131c471b
507 .dword 0x28db77f523047d84, 0x32caab7b40c72493
508 .dword 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c
509 .dword 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a
510 .dword 0x5fcb6fab3ad6faec, 0x6c44198c4a475817
514 .asciiz "SHA${label} for MIPS, CRYPTOGAMS by <appro\@openssl.org>"
519 $code =~ s/\`([^\`]*)\`/eval $1/gem;