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1fa29843 AP |
1 | #!/usr/bin/env perl |
2 | ||
3 | # ==================================================================== | |
f26328c2 | 4 | # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL |
1fa29843 AP |
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/. | |
b1a5d1c6 AP |
8 | # |
9 | # Permission to use under GPL terms is granted. | |
1fa29843 AP |
10 | # ==================================================================== |
11 | ||
12 | # SHA512 block procedure for ARMv4. September 2007. | |
13 | ||
14 | # This code is ~4.5 (four and a half) times faster than code generated | |
2d22e080 AP |
15 | # by gcc 3.4 and it spends ~72 clock cycles per byte [on single-issue |
16 | # Xscale PXA250 core]. | |
17 | # | |
18 | # July 2010. | |
19 | # | |
20 | # Rescheduling for dual-issue pipeline resulted in 6% improvement on | |
21 | # Cortex A8 core and ~40 cycles per processed byte. | |
1fa29843 | 22 | |
1e863180 AP |
23 | # February 2011. |
24 | # | |
25 | # Profiler-assisted and platform-specific optimization resulted in 7% | |
26 | # improvement on Coxtex A8 core and ~38 cycles per byte. | |
27 | ||
28 | # March 2011. | |
29 | # | |
30 | # Add NEON implementation. On Cortex A8 it was measured to process | |
482a7d80 | 31 | # one byte in 23.3 cycles or ~60% faster than integer-only code. |
1e863180 | 32 | |
f26328c2 AP |
33 | # August 2012. |
34 | # | |
35 | # Improve NEON performance by 12% on Snapdragon S4. In absolute | |
36 | # terms it's 22.6 cycles per byte, which is disappointing result. | |
37 | # Technical writers asserted that 3-way S4 pipeline can sustain | |
38 | # multiple NEON instructions per cycle, but dual NEON issue could | |
e390ae50 AP |
39 | # not be observed, see http://www.openssl.org/~appro/Snapdragon-S4.html |
40 | # for further details. On side note Cortex-A15 processes one byte in | |
41 | # 16 cycles. | |
f26328c2 | 42 | |
74eb3e09 AP |
43 | # Byte order [in]dependence. ========================================= |
44 | # | |
1e863180 AP |
45 | # Originally caller was expected to maintain specific *dword* order in |
46 | # h[0-7], namely with most significant dword at *lower* address, which | |
47 | # was reflected in below two parameters as 0 and 4. Now caller is | |
48 | # expected to maintain native byte order for whole 64-bit values. | |
49 | $hi="HI"; | |
50 | $lo="LO"; | |
74eb3e09 | 51 | # ==================================================================== |
1fa29843 | 52 | |
313e6ec1 AP |
53 | $flavour = shift; |
54 | if ($flavour=~/^\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; } | |
55 | else { while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {} } | |
56 | ||
57 | if ($flavour && $flavour ne "void") { | |
58 | $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
59 | ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or | |
60 | ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or | |
61 | die "can't locate arm-xlate.pl"; | |
62 | ||
63 | open STDOUT,"| \"$^X\" $xlate $flavour $output"; | |
64 | } else { | |
65 | open STDOUT,">$output"; | |
66 | } | |
4c7c5ff6 | 67 | |
1e863180 | 68 | $ctx="r0"; # parameter block |
1fa29843 AP |
69 | $inp="r1"; |
70 | $len="r2"; | |
1e863180 | 71 | |
1fa29843 AP |
72 | $Tlo="r3"; |
73 | $Thi="r4"; | |
74 | $Alo="r5"; | |
75 | $Ahi="r6"; | |
76 | $Elo="r7"; | |
77 | $Ehi="r8"; | |
78 | $t0="r9"; | |
79 | $t1="r10"; | |
80 | $t2="r11"; | |
81 | $t3="r12"; | |
82 | ############ r13 is stack pointer | |
83 | $Ktbl="r14"; | |
84 | ############ r15 is program counter | |
85 | ||
86 | $Aoff=8*0; | |
87 | $Boff=8*1; | |
88 | $Coff=8*2; | |
89 | $Doff=8*3; | |
90 | $Eoff=8*4; | |
91 | $Foff=8*5; | |
92 | $Goff=8*6; | |
93 | $Hoff=8*7; | |
94 | $Xoff=8*8; | |
95 | ||
96 | sub BODY_00_15() { | |
97 | my $magic = shift; | |
98 | $code.=<<___; | |
1fa29843 AP |
99 | @ Sigma1(x) (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41)) |
100 | @ LO lo>>14^hi<<18 ^ lo>>18^hi<<14 ^ hi>>9^lo<<23 | |
101 | @ HI hi>>14^lo<<18 ^ hi>>18^lo<<14 ^ lo>>9^hi<<23 | |
102 | mov $t0,$Elo,lsr#14 | |
1e863180 | 103 | str $Tlo,[sp,#$Xoff+0] |
1fa29843 | 104 | mov $t1,$Ehi,lsr#14 |
1e863180 | 105 | str $Thi,[sp,#$Xoff+4] |
1fa29843 | 106 | eor $t0,$t0,$Ehi,lsl#18 |
1e863180 | 107 | ldr $t2,[sp,#$Hoff+0] @ h.lo |
1fa29843 | 108 | eor $t1,$t1,$Elo,lsl#18 |
1e863180 | 109 | ldr $t3,[sp,#$Hoff+4] @ h.hi |
1fa29843 AP |
110 | eor $t0,$t0,$Elo,lsr#18 |
111 | eor $t1,$t1,$Ehi,lsr#18 | |
112 | eor $t0,$t0,$Ehi,lsl#14 | |
113 | eor $t1,$t1,$Elo,lsl#14 | |
114 | eor $t0,$t0,$Ehi,lsr#9 | |
115 | eor $t1,$t1,$Elo,lsr#9 | |
116 | eor $t0,$t0,$Elo,lsl#23 | |
117 | eor $t1,$t1,$Ehi,lsl#23 @ Sigma1(e) | |
118 | adds $Tlo,$Tlo,$t0 | |
1fa29843 | 119 | ldr $t0,[sp,#$Foff+0] @ f.lo |
2d22e080 | 120 | adc $Thi,$Thi,$t1 @ T += Sigma1(e) |
1fa29843 | 121 | ldr $t1,[sp,#$Foff+4] @ f.hi |
2d22e080 | 122 | adds $Tlo,$Tlo,$t2 |
1fa29843 | 123 | ldr $t2,[sp,#$Goff+0] @ g.lo |
2d22e080 | 124 | adc $Thi,$Thi,$t3 @ T += h |
1fa29843 | 125 | ldr $t3,[sp,#$Goff+4] @ g.hi |
1fa29843 AP |
126 | |
127 | eor $t0,$t0,$t2 | |
2d22e080 | 128 | str $Elo,[sp,#$Eoff+0] |
1fa29843 | 129 | eor $t1,$t1,$t3 |
2d22e080 | 130 | str $Ehi,[sp,#$Eoff+4] |
1fa29843 | 131 | and $t0,$t0,$Elo |
2d22e080 | 132 | str $Alo,[sp,#$Aoff+0] |
1fa29843 | 133 | and $t1,$t1,$Ehi |
2d22e080 | 134 | str $Ahi,[sp,#$Aoff+4] |
1fa29843 | 135 | eor $t0,$t0,$t2 |
1e863180 | 136 | ldr $t2,[$Ktbl,#$lo] @ K[i].lo |
2d22e080 | 137 | eor $t1,$t1,$t3 @ Ch(e,f,g) |
1e863180 | 138 | ldr $t3,[$Ktbl,#$hi] @ K[i].hi |
1fa29843 AP |
139 | |
140 | adds $Tlo,$Tlo,$t0 | |
2d22e080 | 141 | ldr $Elo,[sp,#$Doff+0] @ d.lo |
1fa29843 | 142 | adc $Thi,$Thi,$t1 @ T += Ch(e,f,g) |
2d22e080 | 143 | ldr $Ehi,[sp,#$Doff+4] @ d.hi |
1fa29843 | 144 | adds $Tlo,$Tlo,$t2 |
1e863180 | 145 | and $t0,$t2,#0xff |
1fa29843 AP |
146 | adc $Thi,$Thi,$t3 @ T += K[i] |
147 | adds $Elo,$Elo,$Tlo | |
1e863180 | 148 | ldr $t2,[sp,#$Boff+0] @ b.lo |
1fa29843 | 149 | adc $Ehi,$Ehi,$Thi @ d += T |
1fa29843 | 150 | teq $t0,#$magic |
1fa29843 | 151 | |
b5e5760d | 152 | ldr $t3,[sp,#$Coff+0] @ c.lo |
b1a5d1c6 AP |
153 | #if __ARM_ARCH__>=7 |
154 | it eq @ Thumb2 thing, sanity check in ARM | |
155 | #endif | |
1e863180 | 156 | orreq $Ktbl,$Ktbl,#1 |
1fa29843 AP |
157 | @ Sigma0(x) (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39)) |
158 | @ LO lo>>28^hi<<4 ^ hi>>2^lo<<30 ^ hi>>7^lo<<25 | |
159 | @ HI hi>>28^lo<<4 ^ lo>>2^hi<<30 ^ lo>>7^hi<<25 | |
160 | mov $t0,$Alo,lsr#28 | |
161 | mov $t1,$Ahi,lsr#28 | |
162 | eor $t0,$t0,$Ahi,lsl#4 | |
163 | eor $t1,$t1,$Alo,lsl#4 | |
164 | eor $t0,$t0,$Ahi,lsr#2 | |
165 | eor $t1,$t1,$Alo,lsr#2 | |
166 | eor $t0,$t0,$Alo,lsl#30 | |
167 | eor $t1,$t1,$Ahi,lsl#30 | |
168 | eor $t0,$t0,$Ahi,lsr#7 | |
169 | eor $t1,$t1,$Alo,lsr#7 | |
170 | eor $t0,$t0,$Alo,lsl#25 | |
171 | eor $t1,$t1,$Ahi,lsl#25 @ Sigma0(a) | |
172 | adds $Tlo,$Tlo,$t0 | |
1e863180 | 173 | and $t0,$Alo,$t2 |
1fa29843 AP |
174 | adc $Thi,$Thi,$t1 @ T += Sigma0(a) |
175 | ||
1fa29843 | 176 | ldr $t1,[sp,#$Boff+4] @ b.hi |
1e863180 | 177 | orr $Alo,$Alo,$t2 |
1fa29843 AP |
178 | ldr $t2,[sp,#$Coff+4] @ c.hi |
179 | and $Alo,$Alo,$t3 | |
1fa29843 AP |
180 | and $t3,$Ahi,$t1 |
181 | orr $Ahi,$Ahi,$t1 | |
1e863180 | 182 | orr $Alo,$Alo,$t0 @ Maj(a,b,c).lo |
1fa29843 | 183 | and $Ahi,$Ahi,$t2 |
1fa29843 | 184 | adds $Alo,$Alo,$Tlo |
1e863180 | 185 | orr $Ahi,$Ahi,$t3 @ Maj(a,b,c).hi |
1fa29843 | 186 | sub sp,sp,#8 |
1e863180 AP |
187 | adc $Ahi,$Ahi,$Thi @ h += T |
188 | tst $Ktbl,#1 | |
1fa29843 AP |
189 | add $Ktbl,$Ktbl,#8 |
190 | ___ | |
191 | } | |
192 | $code=<<___; | |
b1a5d1c6 AP |
193 | #ifndef __KERNEL__ |
194 | # include "arm_arch.h" | |
195 | # define VFP_ABI_PUSH vstmdb sp!,{d8-d15} | |
196 | # define VFP_ABI_POP vldmia sp!,{d8-d15} | |
197 | #else | |
198 | # define __ARM_ARCH__ __LINUX_ARM_ARCH__ | |
199 | # define __ARM_MAX_ARCH__ 7 | |
200 | # define VFP_ABI_PUSH | |
201 | # define VFP_ABI_POP | |
202 | #endif | |
203 | ||
1e863180 AP |
204 | #ifdef __ARMEL__ |
205 | # define LO 0 | |
206 | # define HI 4 | |
207 | # define WORD64(hi0,lo0,hi1,lo1) .word lo0,hi0, lo1,hi1 | |
208 | #else | |
209 | # define HI 0 | |
210 | # define LO 4 | |
211 | # define WORD64(hi0,lo0,hi1,lo1) .word hi0,lo0, hi1,lo1 | |
212 | #endif | |
213 | ||
1fa29843 | 214 | .text |
a2859927 | 215 | #if defined(__thumb2__) |
b1a5d1c6 | 216 | .syntax unified |
b1a5d1c6 | 217 | .thumb |
11208dcf AP |
218 | # define adrl adr |
219 | #else | |
220 | .code 32 | |
b1a5d1c6 AP |
221 | #endif |
222 | ||
1fa29843 AP |
223 | .type K512,%object |
224 | .align 5 | |
225 | K512: | |
1e863180 AP |
226 | WORD64(0x428a2f98,0xd728ae22, 0x71374491,0x23ef65cd) |
227 | WORD64(0xb5c0fbcf,0xec4d3b2f, 0xe9b5dba5,0x8189dbbc) | |
228 | WORD64(0x3956c25b,0xf348b538, 0x59f111f1,0xb605d019) | |
229 | WORD64(0x923f82a4,0xaf194f9b, 0xab1c5ed5,0xda6d8118) | |
230 | WORD64(0xd807aa98,0xa3030242, 0x12835b01,0x45706fbe) | |
231 | WORD64(0x243185be,0x4ee4b28c, 0x550c7dc3,0xd5ffb4e2) | |
232 | WORD64(0x72be5d74,0xf27b896f, 0x80deb1fe,0x3b1696b1) | |
233 | WORD64(0x9bdc06a7,0x25c71235, 0xc19bf174,0xcf692694) | |
234 | WORD64(0xe49b69c1,0x9ef14ad2, 0xefbe4786,0x384f25e3) | |
235 | WORD64(0x0fc19dc6,0x8b8cd5b5, 0x240ca1cc,0x77ac9c65) | |
236 | WORD64(0x2de92c6f,0x592b0275, 0x4a7484aa,0x6ea6e483) | |
237 | WORD64(0x5cb0a9dc,0xbd41fbd4, 0x76f988da,0x831153b5) | |
238 | WORD64(0x983e5152,0xee66dfab, 0xa831c66d,0x2db43210) | |
239 | WORD64(0xb00327c8,0x98fb213f, 0xbf597fc7,0xbeef0ee4) | |
240 | WORD64(0xc6e00bf3,0x3da88fc2, 0xd5a79147,0x930aa725) | |
241 | WORD64(0x06ca6351,0xe003826f, 0x14292967,0x0a0e6e70) | |
242 | WORD64(0x27b70a85,0x46d22ffc, 0x2e1b2138,0x5c26c926) | |
243 | WORD64(0x4d2c6dfc,0x5ac42aed, 0x53380d13,0x9d95b3df) | |
244 | WORD64(0x650a7354,0x8baf63de, 0x766a0abb,0x3c77b2a8) | |
245 | WORD64(0x81c2c92e,0x47edaee6, 0x92722c85,0x1482353b) | |
246 | WORD64(0xa2bfe8a1,0x4cf10364, 0xa81a664b,0xbc423001) | |
247 | WORD64(0xc24b8b70,0xd0f89791, 0xc76c51a3,0x0654be30) | |
248 | WORD64(0xd192e819,0xd6ef5218, 0xd6990624,0x5565a910) | |
249 | WORD64(0xf40e3585,0x5771202a, 0x106aa070,0x32bbd1b8) | |
250 | WORD64(0x19a4c116,0xb8d2d0c8, 0x1e376c08,0x5141ab53) | |
251 | WORD64(0x2748774c,0xdf8eeb99, 0x34b0bcb5,0xe19b48a8) | |
252 | WORD64(0x391c0cb3,0xc5c95a63, 0x4ed8aa4a,0xe3418acb) | |
253 | WORD64(0x5b9cca4f,0x7763e373, 0x682e6ff3,0xd6b2b8a3) | |
254 | WORD64(0x748f82ee,0x5defb2fc, 0x78a5636f,0x43172f60) | |
255 | WORD64(0x84c87814,0xa1f0ab72, 0x8cc70208,0x1a6439ec) | |
256 | WORD64(0x90befffa,0x23631e28, 0xa4506ceb,0xde82bde9) | |
257 | WORD64(0xbef9a3f7,0xb2c67915, 0xc67178f2,0xe372532b) | |
258 | WORD64(0xca273ece,0xea26619c, 0xd186b8c7,0x21c0c207) | |
259 | WORD64(0xeada7dd6,0xcde0eb1e, 0xf57d4f7f,0xee6ed178) | |
260 | WORD64(0x06f067aa,0x72176fba, 0x0a637dc5,0xa2c898a6) | |
261 | WORD64(0x113f9804,0xbef90dae, 0x1b710b35,0x131c471b) | |
262 | WORD64(0x28db77f5,0x23047d84, 0x32caab7b,0x40c72493) | |
263 | WORD64(0x3c9ebe0a,0x15c9bebc, 0x431d67c4,0x9c100d4c) | |
264 | WORD64(0x4cc5d4be,0xcb3e42b6, 0x597f299c,0xfc657e2a) | |
265 | WORD64(0x5fcb6fab,0x3ad6faec, 0x6c44198c,0x4a475817) | |
1fa29843 | 266 | .size K512,.-K512 |
b1a5d1c6 | 267 | #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) |
1e863180 | 268 | .LOPENSSL_armcap: |
313e6ec1 | 269 | .word OPENSSL_armcap_P-.Lsha512_block_data_order |
1e863180 | 270 | .skip 32-4 |
c1669e1c AP |
271 | #else |
272 | .skip 32 | |
273 | #endif | |
1fa29843 AP |
274 | |
275 | .global sha512_block_data_order | |
276 | .type sha512_block_data_order,%function | |
277 | sha512_block_data_order: | |
313e6ec1 | 278 | .Lsha512_block_data_order: |
11208dcf | 279 | #if __ARM_ARCH__<7 && !defined(__thumb2__) |
1fa29843 | 280 | sub r3,pc,#8 @ sha512_block_data_order |
b1a5d1c6 | 281 | #else |
11208dcf | 282 | adr r3,.Lsha512_block_data_order |
b1a5d1c6 AP |
283 | #endif |
284 | #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) | |
1e863180 | 285 | ldr r12,.LOPENSSL_armcap |
87873f43 | 286 | ldr r12,[r3,r12] @ OPENSSL_armcap_P |
313e6ec1 AP |
287 | #ifdef __APPLE__ |
288 | ldr r12,[r12] | |
289 | #endif | |
bdbd3aea | 290 | tst r12,#ARMV7_NEON |
1e863180 AP |
291 | bne .LNEON |
292 | #endif | |
b1a5d1c6 | 293 | add $len,$inp,$len,lsl#7 @ len to point at the end of inp |
1fa29843 | 294 | stmdb sp!,{r4-r12,lr} |
1e863180 | 295 | sub $Ktbl,r3,#672 @ K512 |
1fa29843 AP |
296 | sub sp,sp,#9*8 |
297 | ||
298 | ldr $Elo,[$ctx,#$Eoff+$lo] | |
299 | ldr $Ehi,[$ctx,#$Eoff+$hi] | |
300 | ldr $t0, [$ctx,#$Goff+$lo] | |
301 | ldr $t1, [$ctx,#$Goff+$hi] | |
302 | ldr $t2, [$ctx,#$Hoff+$lo] | |
303 | ldr $t3, [$ctx,#$Hoff+$hi] | |
304 | .Loop: | |
305 | str $t0, [sp,#$Goff+0] | |
306 | str $t1, [sp,#$Goff+4] | |
307 | str $t2, [sp,#$Hoff+0] | |
308 | str $t3, [sp,#$Hoff+4] | |
309 | ldr $Alo,[$ctx,#$Aoff+$lo] | |
310 | ldr $Ahi,[$ctx,#$Aoff+$hi] | |
311 | ldr $Tlo,[$ctx,#$Boff+$lo] | |
312 | ldr $Thi,[$ctx,#$Boff+$hi] | |
313 | ldr $t0, [$ctx,#$Coff+$lo] | |
314 | ldr $t1, [$ctx,#$Coff+$hi] | |
315 | ldr $t2, [$ctx,#$Doff+$lo] | |
316 | ldr $t3, [$ctx,#$Doff+$hi] | |
317 | str $Tlo,[sp,#$Boff+0] | |
318 | str $Thi,[sp,#$Boff+4] | |
319 | str $t0, [sp,#$Coff+0] | |
320 | str $t1, [sp,#$Coff+4] | |
321 | str $t2, [sp,#$Doff+0] | |
322 | str $t3, [sp,#$Doff+4] | |
323 | ldr $Tlo,[$ctx,#$Foff+$lo] | |
324 | ldr $Thi,[$ctx,#$Foff+$hi] | |
325 | str $Tlo,[sp,#$Foff+0] | |
326 | str $Thi,[sp,#$Foff+4] | |
327 | ||
328 | .L00_15: | |
1e863180 | 329 | #if __ARM_ARCH__<7 |
1fa29843 AP |
330 | ldrb $Tlo,[$inp,#7] |
331 | ldrb $t0, [$inp,#6] | |
332 | ldrb $t1, [$inp,#5] | |
333 | ldrb $t2, [$inp,#4] | |
334 | ldrb $Thi,[$inp,#3] | |
335 | ldrb $t3, [$inp,#2] | |
336 | orr $Tlo,$Tlo,$t0,lsl#8 | |
337 | ldrb $t0, [$inp,#1] | |
338 | orr $Tlo,$Tlo,$t1,lsl#16 | |
339 | ldrb $t1, [$inp],#8 | |
340 | orr $Tlo,$Tlo,$t2,lsl#24 | |
341 | orr $Thi,$Thi,$t3,lsl#8 | |
342 | orr $Thi,$Thi,$t0,lsl#16 | |
343 | orr $Thi,$Thi,$t1,lsl#24 | |
1e863180 AP |
344 | #else |
345 | ldr $Tlo,[$inp,#4] | |
346 | ldr $Thi,[$inp],#8 | |
347 | #ifdef __ARMEL__ | |
348 | rev $Tlo,$Tlo | |
349 | rev $Thi,$Thi | |
350 | #endif | |
351 | #endif | |
1fa29843 AP |
352 | ___ |
353 | &BODY_00_15(0x94); | |
354 | $code.=<<___; | |
355 | tst $Ktbl,#1 | |
356 | beq .L00_15 | |
1fa29843 AP |
357 | ldr $t0,[sp,#`$Xoff+8*(16-1)`+0] |
358 | ldr $t1,[sp,#`$Xoff+8*(16-1)`+4] | |
1e863180 AP |
359 | bic $Ktbl,$Ktbl,#1 |
360 | .L16_79: | |
1fa29843 AP |
361 | @ sigma0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7)) |
362 | @ LO lo>>1^hi<<31 ^ lo>>8^hi<<24 ^ lo>>7^hi<<25 | |
363 | @ HI hi>>1^lo<<31 ^ hi>>8^lo<<24 ^ hi>>7 | |
364 | mov $Tlo,$t0,lsr#1 | |
1e863180 | 365 | ldr $t2,[sp,#`$Xoff+8*(16-14)`+0] |
1fa29843 | 366 | mov $Thi,$t1,lsr#1 |
1e863180 | 367 | ldr $t3,[sp,#`$Xoff+8*(16-14)`+4] |
1fa29843 AP |
368 | eor $Tlo,$Tlo,$t1,lsl#31 |
369 | eor $Thi,$Thi,$t0,lsl#31 | |
370 | eor $Tlo,$Tlo,$t0,lsr#8 | |
371 | eor $Thi,$Thi,$t1,lsr#8 | |
372 | eor $Tlo,$Tlo,$t1,lsl#24 | |
373 | eor $Thi,$Thi,$t0,lsl#24 | |
374 | eor $Tlo,$Tlo,$t0,lsr#7 | |
375 | eor $Thi,$Thi,$t1,lsr#7 | |
376 | eor $Tlo,$Tlo,$t1,lsl#25 | |
377 | ||
378 | @ sigma1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6)) | |
379 | @ LO lo>>19^hi<<13 ^ hi>>29^lo<<3 ^ lo>>6^hi<<26 | |
380 | @ HI hi>>19^lo<<13 ^ lo>>29^hi<<3 ^ hi>>6 | |
381 | mov $t0,$t2,lsr#19 | |
382 | mov $t1,$t3,lsr#19 | |
383 | eor $t0,$t0,$t3,lsl#13 | |
384 | eor $t1,$t1,$t2,lsl#13 | |
385 | eor $t0,$t0,$t3,lsr#29 | |
386 | eor $t1,$t1,$t2,lsr#29 | |
387 | eor $t0,$t0,$t2,lsl#3 | |
388 | eor $t1,$t1,$t3,lsl#3 | |
389 | eor $t0,$t0,$t2,lsr#6 | |
390 | eor $t1,$t1,$t3,lsr#6 | |
1e863180 | 391 | ldr $t2,[sp,#`$Xoff+8*(16-9)`+0] |
1fa29843 AP |
392 | eor $t0,$t0,$t3,lsl#26 |
393 | ||
1fa29843 AP |
394 | ldr $t3,[sp,#`$Xoff+8*(16-9)`+4] |
395 | adds $Tlo,$Tlo,$t0 | |
1e863180 | 396 | ldr $t0,[sp,#`$Xoff+8*16`+0] |
1fa29843 AP |
397 | adc $Thi,$Thi,$t1 |
398 | ||
1fa29843 AP |
399 | ldr $t1,[sp,#`$Xoff+8*16`+4] |
400 | adds $Tlo,$Tlo,$t2 | |
401 | adc $Thi,$Thi,$t3 | |
402 | adds $Tlo,$Tlo,$t0 | |
403 | adc $Thi,$Thi,$t1 | |
1fa29843 AP |
404 | ___ |
405 | &BODY_00_15(0x17); | |
406 | $code.=<<___; | |
b1a5d1c6 AP |
407 | #if __ARM_ARCH__>=7 |
408 | ittt eq @ Thumb2 thing, sanity check in ARM | |
409 | #endif | |
1e863180 AP |
410 | ldreq $t0,[sp,#`$Xoff+8*(16-1)`+0] |
411 | ldreq $t1,[sp,#`$Xoff+8*(16-1)`+4] | |
1fa29843 AP |
412 | beq .L16_79 |
413 | bic $Ktbl,$Ktbl,#1 | |
414 | ||
415 | ldr $Tlo,[sp,#$Boff+0] | |
416 | ldr $Thi,[sp,#$Boff+4] | |
417 | ldr $t0, [$ctx,#$Aoff+$lo] | |
418 | ldr $t1, [$ctx,#$Aoff+$hi] | |
419 | ldr $t2, [$ctx,#$Boff+$lo] | |
420 | ldr $t3, [$ctx,#$Boff+$hi] | |
421 | adds $t0,$Alo,$t0 | |
1fa29843 | 422 | str $t0, [$ctx,#$Aoff+$lo] |
1e863180 | 423 | adc $t1,$Ahi,$t1 |
1fa29843 | 424 | str $t1, [$ctx,#$Aoff+$hi] |
1e863180 | 425 | adds $t2,$Tlo,$t2 |
1fa29843 | 426 | str $t2, [$ctx,#$Boff+$lo] |
1e863180 | 427 | adc $t3,$Thi,$t3 |
1fa29843 AP |
428 | str $t3, [$ctx,#$Boff+$hi] |
429 | ||
430 | ldr $Alo,[sp,#$Coff+0] | |
431 | ldr $Ahi,[sp,#$Coff+4] | |
432 | ldr $Tlo,[sp,#$Doff+0] | |
433 | ldr $Thi,[sp,#$Doff+4] | |
434 | ldr $t0, [$ctx,#$Coff+$lo] | |
435 | ldr $t1, [$ctx,#$Coff+$hi] | |
436 | ldr $t2, [$ctx,#$Doff+$lo] | |
437 | ldr $t3, [$ctx,#$Doff+$hi] | |
438 | adds $t0,$Alo,$t0 | |
1fa29843 | 439 | str $t0, [$ctx,#$Coff+$lo] |
1e863180 | 440 | adc $t1,$Ahi,$t1 |
1fa29843 | 441 | str $t1, [$ctx,#$Coff+$hi] |
1e863180 | 442 | adds $t2,$Tlo,$t2 |
1fa29843 | 443 | str $t2, [$ctx,#$Doff+$lo] |
1e863180 | 444 | adc $t3,$Thi,$t3 |
1fa29843 AP |
445 | str $t3, [$ctx,#$Doff+$hi] |
446 | ||
447 | ldr $Tlo,[sp,#$Foff+0] | |
448 | ldr $Thi,[sp,#$Foff+4] | |
449 | ldr $t0, [$ctx,#$Eoff+$lo] | |
450 | ldr $t1, [$ctx,#$Eoff+$hi] | |
451 | ldr $t2, [$ctx,#$Foff+$lo] | |
452 | ldr $t3, [$ctx,#$Foff+$hi] | |
453 | adds $Elo,$Elo,$t0 | |
1fa29843 | 454 | str $Elo,[$ctx,#$Eoff+$lo] |
1e863180 | 455 | adc $Ehi,$Ehi,$t1 |
1fa29843 | 456 | str $Ehi,[$ctx,#$Eoff+$hi] |
1e863180 | 457 | adds $t2,$Tlo,$t2 |
1fa29843 | 458 | str $t2, [$ctx,#$Foff+$lo] |
1e863180 | 459 | adc $t3,$Thi,$t3 |
1fa29843 AP |
460 | str $t3, [$ctx,#$Foff+$hi] |
461 | ||
462 | ldr $Alo,[sp,#$Goff+0] | |
463 | ldr $Ahi,[sp,#$Goff+4] | |
464 | ldr $Tlo,[sp,#$Hoff+0] | |
465 | ldr $Thi,[sp,#$Hoff+4] | |
466 | ldr $t0, [$ctx,#$Goff+$lo] | |
467 | ldr $t1, [$ctx,#$Goff+$hi] | |
468 | ldr $t2, [$ctx,#$Hoff+$lo] | |
469 | ldr $t3, [$ctx,#$Hoff+$hi] | |
470 | adds $t0,$Alo,$t0 | |
1fa29843 | 471 | str $t0, [$ctx,#$Goff+$lo] |
1e863180 | 472 | adc $t1,$Ahi,$t1 |
1fa29843 | 473 | str $t1, [$ctx,#$Goff+$hi] |
1e863180 | 474 | adds $t2,$Tlo,$t2 |
1fa29843 | 475 | str $t2, [$ctx,#$Hoff+$lo] |
1e863180 | 476 | adc $t3,$Thi,$t3 |
1fa29843 AP |
477 | str $t3, [$ctx,#$Hoff+$hi] |
478 | ||
479 | add sp,sp,#640 | |
480 | sub $Ktbl,$Ktbl,#640 | |
481 | ||
482 | teq $inp,$len | |
483 | bne .Loop | |
484 | ||
485 | add sp,sp,#8*9 @ destroy frame | |
1e863180 AP |
486 | #if __ARM_ARCH__>=5 |
487 | ldmia sp!,{r4-r12,pc} | |
488 | #else | |
1fa29843 AP |
489 | ldmia sp!,{r4-r12,lr} |
490 | tst lr,#1 | |
491 | moveq pc,lr @ be binary compatible with V4, yet | |
492 | bx lr @ interoperable with Thumb ISA:-) | |
1e863180 | 493 | #endif |
b1a5d1c6 | 494 | .size sha512_block_data_order,.-sha512_block_data_order |
1e863180 AP |
495 | ___ |
496 | ||
497 | { | |
498 | my @Sigma0=(28,34,39); | |
499 | my @Sigma1=(14,18,41); | |
500 | my @sigma0=(1, 8, 7); | |
501 | my @sigma1=(19,61,6); | |
502 | ||
503 | my $Ktbl="r3"; | |
504 | my $cnt="r12"; # volatile register known as ip, intra-procedure-call scratch | |
505 | ||
506 | my @X=map("d$_",(0..15)); | |
507 | my @V=($A,$B,$C,$D,$E,$F,$G,$H)=map("d$_",(16..23)); | |
508 | ||
509 | sub NEON_00_15() { | |
510 | my $i=shift; | |
511 | my ($a,$b,$c,$d,$e,$f,$g,$h)=@_; | |
512 | my ($t0,$t1,$t2,$T1,$K,$Ch,$Maj)=map("d$_",(24..31)); # temps | |
513 | ||
514 | $code.=<<___ if ($i<16 || $i&1); | |
515 | vshr.u64 $t0,$e,#@Sigma1[0] @ $i | |
516 | #if $i<16 | |
517 | vld1.64 {@X[$i%16]},[$inp]! @ handles unaligned | |
518 | #endif | |
519 | vshr.u64 $t1,$e,#@Sigma1[1] | |
f26328c2 AP |
520 | #if $i>0 |
521 | vadd.i64 $a,$Maj @ h+=Maj from the past | |
522 | #endif | |
1e863180 AP |
523 | vshr.u64 $t2,$e,#@Sigma1[2] |
524 | ___ | |
525 | $code.=<<___; | |
526 | vld1.64 {$K},[$Ktbl,:64]! @ K[i++] | |
527 | vsli.64 $t0,$e,#`64-@Sigma1[0]` | |
528 | vsli.64 $t1,$e,#`64-@Sigma1[1]` | |
482a7d80 | 529 | vmov $Ch,$e |
1e863180 AP |
530 | vsli.64 $t2,$e,#`64-@Sigma1[2]` |
531 | #if $i<16 && defined(__ARMEL__) | |
532 | vrev64.8 @X[$i],@X[$i] | |
533 | #endif | |
482a7d80 | 534 | veor $t1,$t0 |
f26328c2 | 535 | vbsl $Ch,$f,$g @ Ch(e,f,g) |
1e863180 | 536 | vshr.u64 $t0,$a,#@Sigma0[0] |
482a7d80 | 537 | veor $t2,$t1 @ Sigma1(e) |
f26328c2 | 538 | vadd.i64 $T1,$Ch,$h |
1e863180 | 539 | vshr.u64 $t1,$a,#@Sigma0[1] |
1e863180 | 540 | vsli.64 $t0,$a,#`64-@Sigma0[0]` |
f26328c2 AP |
541 | vadd.i64 $T1,$t2 |
542 | vshr.u64 $t2,$a,#@Sigma0[2] | |
543 | vadd.i64 $K,@X[$i%16] | |
1e863180 | 544 | vsli.64 $t1,$a,#`64-@Sigma0[1]` |
f26328c2 | 545 | veor $Maj,$a,$b |
1e863180 | 546 | vsli.64 $t2,$a,#`64-@Sigma0[2]` |
1e863180 | 547 | veor $h,$t0,$t1 |
f26328c2 | 548 | vadd.i64 $T1,$K |
482a7d80 | 549 | vbsl $Maj,$c,$b @ Maj(a,b,c) |
f26328c2 | 550 | veor $h,$t2 @ Sigma0(a) |
1e863180 | 551 | vadd.i64 $d,$T1 |
f26328c2 AP |
552 | vadd.i64 $Maj,$T1 |
553 | @ vadd.i64 $h,$Maj | |
1e863180 AP |
554 | ___ |
555 | } | |
556 | ||
557 | sub NEON_16_79() { | |
558 | my $i=shift; | |
559 | ||
560 | if ($i&1) { &NEON_00_15($i,@_); return; } | |
561 | ||
562 | # 2x-vectorized, therefore runs every 2nd round | |
563 | my @X=map("q$_",(0..7)); # view @X as 128-bit vector | |
564 | my ($t0,$t1,$s0,$s1) = map("q$_",(12..15)); # temps | |
565 | my ($d0,$d1,$d2) = map("d$_",(24..26)); # temps from NEON_00_15 | |
566 | my $e=@_[4]; # $e from NEON_00_15 | |
567 | $i /= 2; | |
568 | $code.=<<___; | |
569 | vshr.u64 $t0,@X[($i+7)%8],#@sigma1[0] | |
570 | vshr.u64 $t1,@X[($i+7)%8],#@sigma1[1] | |
f26328c2 | 571 | vadd.i64 @_[0],d30 @ h+=Maj from the past |
1e863180 AP |
572 | vshr.u64 $s1,@X[($i+7)%8],#@sigma1[2] |
573 | vsli.64 $t0,@X[($i+7)%8],#`64-@sigma1[0]` | |
574 | vext.8 $s0,@X[$i%8],@X[($i+1)%8],#8 @ X[i+1] | |
575 | vsli.64 $t1,@X[($i+7)%8],#`64-@sigma1[1]` | |
576 | veor $s1,$t0 | |
577 | vshr.u64 $t0,$s0,#@sigma0[0] | |
578 | veor $s1,$t1 @ sigma1(X[i+14]) | |
579 | vshr.u64 $t1,$s0,#@sigma0[1] | |
580 | vadd.i64 @X[$i%8],$s1 | |
581 | vshr.u64 $s1,$s0,#@sigma0[2] | |
582 | vsli.64 $t0,$s0,#`64-@sigma0[0]` | |
583 | vsli.64 $t1,$s0,#`64-@sigma0[1]` | |
584 | vext.8 $s0,@X[($i+4)%8],@X[($i+5)%8],#8 @ X[i+9] | |
585 | veor $s1,$t0 | |
586 | vshr.u64 $d0,$e,#@Sigma1[0] @ from NEON_00_15 | |
587 | vadd.i64 @X[$i%8],$s0 | |
588 | vshr.u64 $d1,$e,#@Sigma1[1] @ from NEON_00_15 | |
589 | veor $s1,$t1 @ sigma0(X[i+1]) | |
590 | vshr.u64 $d2,$e,#@Sigma1[2] @ from NEON_00_15 | |
591 | vadd.i64 @X[$i%8],$s1 | |
592 | ___ | |
593 | &NEON_00_15(2*$i,@_); | |
594 | } | |
595 | ||
596 | $code.=<<___; | |
c1669e1c AP |
597 | #if __ARM_MAX_ARCH__>=7 |
598 | .arch armv7-a | |
1e863180 AP |
599 | .fpu neon |
600 | ||
b1a5d1c6 AP |
601 | .global sha512_block_data_order_neon |
602 | .type sha512_block_data_order_neon,%function | |
1e863180 | 603 | .align 4 |
b1a5d1c6 | 604 | sha512_block_data_order_neon: |
1e863180 AP |
605 | .LNEON: |
606 | dmb @ errata #451034 on early Cortex A8 | |
b1a5d1c6 | 607 | add $len,$inp,$len,lsl#7 @ len to point at the end of inp |
313e6ec1 | 608 | adr $Ktbl,K512 |
b1a5d1c6 | 609 | VFP_ABI_PUSH |
1e863180 AP |
610 | vldmia $ctx,{$A-$H} @ load context |
611 | .Loop_neon: | |
612 | ___ | |
613 | for($i=0;$i<16;$i++) { &NEON_00_15($i,@V); unshift(@V,pop(@V)); } | |
614 | $code.=<<___; | |
615 | mov $cnt,#4 | |
616 | .L16_79_neon: | |
617 | subs $cnt,#1 | |
618 | ___ | |
619 | for(;$i<32;$i++) { &NEON_16_79($i,@V); unshift(@V,pop(@V)); } | |
620 | $code.=<<___; | |
621 | bne .L16_79_neon | |
622 | ||
f26328c2 | 623 | vadd.i64 $A,d30 @ h+=Maj from the past |
1e863180 AP |
624 | vldmia $ctx,{d24-d31} @ load context to temp |
625 | vadd.i64 q8,q12 @ vectorized accumulate | |
626 | vadd.i64 q9,q13 | |
627 | vadd.i64 q10,q14 | |
628 | vadd.i64 q11,q15 | |
629 | vstmia $ctx,{$A-$H} @ save context | |
630 | teq $inp,$len | |
631 | sub $Ktbl,#640 @ rewind K512 | |
632 | bne .Loop_neon | |
633 | ||
b1a5d1c6 | 634 | VFP_ABI_POP |
5dcf70a1 | 635 | ret @ bx lr |
b1a5d1c6 | 636 | .size sha512_block_data_order_neon,.-sha512_block_data_order_neon |
1e863180 AP |
637 | #endif |
638 | ___ | |
639 | } | |
640 | $code.=<<___; | |
1e863180 | 641 | .asciz "SHA512 block transform for ARMv4/NEON, CRYPTOGAMS by <appro\@openssl.org>" |
97a6a01f | 642 | .align 2 |
b1a5d1c6 | 643 | #if __ARM_MAX_ARCH__>=7 && !defined(__KERNEL__) |
87873f43 | 644 | .comm OPENSSL_armcap_P,4,4 |
c1669e1c | 645 | #endif |
1fa29843 AP |
646 | ___ |
647 | ||
648 | $code =~ s/\`([^\`]*)\`/eval $1/gem; | |
7722e53f | 649 | $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4 |
5dcf70a1 | 650 | $code =~ s/\bret\b/bx lr/gm; |
b1a5d1c6 AP |
651 | |
652 | open SELF,$0; | |
653 | while(<SELF>) { | |
654 | next if (/^#!/); | |
655 | last if (!s/^#/@/ and !/^$/); | |
656 | print; | |
657 | } | |
658 | close SELF; | |
659 | ||
1fa29843 | 660 | print $code; |
4c7c5ff6 | 661 | close STDOUT; # enforce flush |