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Merge branch 'for-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
[mirror_ubuntu-artful-kernel.git] / arch / x86 / crypto / sha512-avx2-asm.S
1 ########################################################################
2 # Implement fast SHA-512 with AVX2 instructions. (x86_64)
3 #
4 # Copyright (C) 2013 Intel Corporation.
5 #
6 # Authors:
7 # James Guilford <james.guilford@intel.com>
8 # Kirk Yap <kirk.s.yap@intel.com>
9 # David Cote <david.m.cote@intel.com>
10 # Tim Chen <tim.c.chen@linux.intel.com>
11 #
12 # This software is available to you under a choice of one of two
13 # licenses. You may choose to be licensed under the terms of the GNU
14 # General Public License (GPL) Version 2, available from the file
15 # COPYING in the main directory of this source tree, or the
16 # OpenIB.org BSD license below:
17 #
18 # Redistribution and use in source and binary forms, with or
19 # without modification, are permitted provided that the following
20 # conditions are met:
21 #
22 # - Redistributions of source code must retain the above
23 # copyright notice, this list of conditions and the following
24 # disclaimer.
25 #
26 # - Redistributions in binary form must reproduce the above
27 # copyright notice, this list of conditions and the following
28 # disclaimer in the documentation and/or other materials
29 # provided with the distribution.
30 #
31 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
35 # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
36 # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
37 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
38 # SOFTWARE.
39 #
40 ########################################################################
41 #
42 # This code is described in an Intel White-Paper:
43 # "Fast SHA-512 Implementations on Intel Architecture Processors"
44 #
45 # To find it, surf to http://www.intel.com/p/en_US/embedded
46 # and search for that title.
47 #
48 ########################################################################
49 # This code schedules 1 blocks at a time, with 4 lanes per block
50 ########################################################################
51
52 #ifdef CONFIG_AS_AVX2
53 #include <linux/linkage.h>
54
55 .text
56
57 # Virtual Registers
58 Y_0 = %ymm4
59 Y_1 = %ymm5
60 Y_2 = %ymm6
61 Y_3 = %ymm7
62
63 YTMP0 = %ymm0
64 YTMP1 = %ymm1
65 YTMP2 = %ymm2
66 YTMP3 = %ymm3
67 YTMP4 = %ymm8
68 XFER = YTMP0
69
70 BYTE_FLIP_MASK = %ymm9
71
72 # 1st arg
73 CTX = %rdi
74 # 2nd arg
75 INP = %rsi
76 # 3rd arg
77 NUM_BLKS = %rdx
78
79 c = %rcx
80 d = %r8
81 e = %rdx
82 y3 = %rsi
83
84 TBL = %rbp
85
86 a = %rax
87 b = %rbx
88
89 f = %r9
90 g = %r10
91 h = %r11
92 old_h = %r11
93
94 T1 = %r12
95 y0 = %r13
96 y1 = %r14
97 y2 = %r15
98
99 y4 = %r12
100
101 # Local variables (stack frame)
102 XFER_SIZE = 4*8
103 SRND_SIZE = 1*8
104 INP_SIZE = 1*8
105 INPEND_SIZE = 1*8
106 RSPSAVE_SIZE = 1*8
107 GPRSAVE_SIZE = 6*8
108
109 frame_XFER = 0
110 frame_SRND = frame_XFER + XFER_SIZE
111 frame_INP = frame_SRND + SRND_SIZE
112 frame_INPEND = frame_INP + INP_SIZE
113 frame_RSPSAVE = frame_INPEND + INPEND_SIZE
114 frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE
115 frame_size = frame_GPRSAVE + GPRSAVE_SIZE
116
117 ## assume buffers not aligned
118 #define VMOVDQ vmovdqu
119
120 # addm [mem], reg
121 # Add reg to mem using reg-mem add and store
122 .macro addm p1 p2
123 add \p1, \p2
124 mov \p2, \p1
125 .endm
126
127
128 # COPY_YMM_AND_BSWAP ymm, [mem], byte_flip_mask
129 # Load ymm with mem and byte swap each dword
130 .macro COPY_YMM_AND_BSWAP p1 p2 p3
131 VMOVDQ \p2, \p1
132 vpshufb \p3, \p1, \p1
133 .endm
134 # rotate_Ys
135 # Rotate values of symbols Y0...Y3
136 .macro rotate_Ys
137 Y_ = Y_0
138 Y_0 = Y_1
139 Y_1 = Y_2
140 Y_2 = Y_3
141 Y_3 = Y_
142 .endm
143
144 # RotateState
145 .macro RotateState
146 # Rotate symbols a..h right
147 old_h = h
148 TMP_ = h
149 h = g
150 g = f
151 f = e
152 e = d
153 d = c
154 c = b
155 b = a
156 a = TMP_
157 .endm
158
159 # macro MY_VPALIGNR YDST, YSRC1, YSRC2, RVAL
160 # YDST = {YSRC1, YSRC2} >> RVAL*8
161 .macro MY_VPALIGNR YDST YSRC1 YSRC2 RVAL
162 vperm2f128 $0x3, \YSRC2, \YSRC1, \YDST # YDST = {YS1_LO, YS2_HI}
163 vpalignr $\RVAL, \YSRC2, \YDST, \YDST # YDST = {YDS1, YS2} >> RVAL*8
164 .endm
165
166 .macro FOUR_ROUNDS_AND_SCHED
167 ################################### RND N + 0 #########################################
168
169 # Extract w[t-7]
170 MY_VPALIGNR YTMP0, Y_3, Y_2, 8 # YTMP0 = W[-7]
171 # Calculate w[t-16] + w[t-7]
172 vpaddq Y_0, YTMP0, YTMP0 # YTMP0 = W[-7] + W[-16]
173 # Extract w[t-15]
174 MY_VPALIGNR YTMP1, Y_1, Y_0, 8 # YTMP1 = W[-15]
175
176 # Calculate sigma0
177
178 # Calculate w[t-15] ror 1
179 vpsrlq $1, YTMP1, YTMP2
180 vpsllq $(64-1), YTMP1, YTMP3
181 vpor YTMP2, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1
182 # Calculate w[t-15] shr 7
183 vpsrlq $7, YTMP1, YTMP4 # YTMP4 = W[-15] >> 7
184
185 mov a, y3 # y3 = a # MAJA
186 rorx $41, e, y0 # y0 = e >> 41 # S1A
187 rorx $18, e, y1 # y1 = e >> 18 # S1B
188 add frame_XFER(%rsp),h # h = k + w + h # --
189 or c, y3 # y3 = a|c # MAJA
190 mov f, y2 # y2 = f # CH
191 rorx $34, a, T1 # T1 = a >> 34 # S0B
192
193 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
194 xor g, y2 # y2 = f^g # CH
195 rorx $14, e, y1 # y1 = (e >> 14) # S1
196
197 and e, y2 # y2 = (f^g)&e # CH
198 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
199 rorx $39, a, y1 # y1 = a >> 39 # S0A
200 add h, d # d = k + w + h + d # --
201
202 and b, y3 # y3 = (a|c)&b # MAJA
203 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
204 rorx $28, a, T1 # T1 = (a >> 28) # S0
205
206 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
207 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
208 mov a, T1 # T1 = a # MAJB
209 and c, T1 # T1 = a&c # MAJB
210
211 add y0, y2 # y2 = S1 + CH # --
212 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
213 add y1, h # h = k + w + h + S0 # --
214
215 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
216
217 add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
218 add y3, h # h = t1 + S0 + MAJ # --
219
220 RotateState
221
222 ################################### RND N + 1 #########################################
223
224 # Calculate w[t-15] ror 8
225 vpsrlq $8, YTMP1, YTMP2
226 vpsllq $(64-8), YTMP1, YTMP1
227 vpor YTMP2, YTMP1, YTMP1 # YTMP1 = W[-15] ror 8
228 # XOR the three components
229 vpxor YTMP4, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1 ^ W[-15] >> 7
230 vpxor YTMP1, YTMP3, YTMP1 # YTMP1 = s0
231
232
233 # Add three components, w[t-16], w[t-7] and sigma0
234 vpaddq YTMP1, YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0
235 # Move to appropriate lanes for calculating w[16] and w[17]
236 vperm2f128 $0x0, YTMP0, YTMP0, Y_0 # Y_0 = W[-16] + W[-7] + s0 {BABA}
237 # Move to appropriate lanes for calculating w[18] and w[19]
238 vpand MASK_YMM_LO(%rip), YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0 {DC00}
239
240 # Calculate w[16] and w[17] in both 128 bit lanes
241
242 # Calculate sigma1 for w[16] and w[17] on both 128 bit lanes
243 vperm2f128 $0x11, Y_3, Y_3, YTMP2 # YTMP2 = W[-2] {BABA}
244 vpsrlq $6, YTMP2, YTMP4 # YTMP4 = W[-2] >> 6 {BABA}
245
246
247 mov a, y3 # y3 = a # MAJA
248 rorx $41, e, y0 # y0 = e >> 41 # S1A
249 rorx $18, e, y1 # y1 = e >> 18 # S1B
250 add 1*8+frame_XFER(%rsp), h # h = k + w + h # --
251 or c, y3 # y3 = a|c # MAJA
252
253
254 mov f, y2 # y2 = f # CH
255 rorx $34, a, T1 # T1 = a >> 34 # S0B
256 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
257 xor g, y2 # y2 = f^g # CH
258
259
260 rorx $14, e, y1 # y1 = (e >> 14) # S1
261 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
262 rorx $39, a, y1 # y1 = a >> 39 # S0A
263 and e, y2 # y2 = (f^g)&e # CH
264 add h, d # d = k + w + h + d # --
265
266 and b, y3 # y3 = (a|c)&b # MAJA
267 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
268
269 rorx $28, a, T1 # T1 = (a >> 28) # S0
270 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
271
272 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
273 mov a, T1 # T1 = a # MAJB
274 and c, T1 # T1 = a&c # MAJB
275 add y0, y2 # y2 = S1 + CH # --
276
277 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
278 add y1, h # h = k + w + h + S0 # --
279
280 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
281 add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
282 add y3, h # h = t1 + S0 + MAJ # --
283
284 RotateState
285
286
287 ################################### RND N + 2 #########################################
288
289 vpsrlq $19, YTMP2, YTMP3 # YTMP3 = W[-2] >> 19 {BABA}
290 vpsllq $(64-19), YTMP2, YTMP1 # YTMP1 = W[-2] << 19 {BABA}
291 vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {BABA}
292 vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {BABA}
293 vpsrlq $61, YTMP2, YTMP3 # YTMP3 = W[-2] >> 61 {BABA}
294 vpsllq $(64-61), YTMP2, YTMP1 # YTMP1 = W[-2] << 61 {BABA}
295 vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {BABA}
296 vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^
297 # (W[-2] ror 61) ^ (W[-2] >> 6) {BABA}
298
299 # Add sigma1 to the other compunents to get w[16] and w[17]
300 vpaddq YTMP4, Y_0, Y_0 # Y_0 = {W[1], W[0], W[1], W[0]}
301
302 # Calculate sigma1 for w[18] and w[19] for upper 128 bit lane
303 vpsrlq $6, Y_0, YTMP4 # YTMP4 = W[-2] >> 6 {DC--}
304
305 mov a, y3 # y3 = a # MAJA
306 rorx $41, e, y0 # y0 = e >> 41 # S1A
307 add 2*8+frame_XFER(%rsp), h # h = k + w + h # --
308
309 rorx $18, e, y1 # y1 = e >> 18 # S1B
310 or c, y3 # y3 = a|c # MAJA
311 mov f, y2 # y2 = f # CH
312 xor g, y2 # y2 = f^g # CH
313
314 rorx $34, a, T1 # T1 = a >> 34 # S0B
315 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
316 and e, y2 # y2 = (f^g)&e # CH
317
318 rorx $14, e, y1 # y1 = (e >> 14) # S1
319 add h, d # d = k + w + h + d # --
320 and b, y3 # y3 = (a|c)&b # MAJA
321
322 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
323 rorx $39, a, y1 # y1 = a >> 39 # S0A
324 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
325
326 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
327 rorx $28, a, T1 # T1 = (a >> 28) # S0
328
329 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
330 mov a, T1 # T1 = a # MAJB
331 and c, T1 # T1 = a&c # MAJB
332 add y0, y2 # y2 = S1 + CH # --
333
334 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
335 add y1, h # h = k + w + h + S0 # --
336 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
337 add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
338
339 add y3, h # h = t1 + S0 + MAJ # --
340
341 RotateState
342
343 ################################### RND N + 3 #########################################
344
345 vpsrlq $19, Y_0, YTMP3 # YTMP3 = W[-2] >> 19 {DC--}
346 vpsllq $(64-19), Y_0, YTMP1 # YTMP1 = W[-2] << 19 {DC--}
347 vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {DC--}
348 vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {DC--}
349 vpsrlq $61, Y_0, YTMP3 # YTMP3 = W[-2] >> 61 {DC--}
350 vpsllq $(64-61), Y_0, YTMP1 # YTMP1 = W[-2] << 61 {DC--}
351 vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {DC--}
352 vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^
353 # (W[-2] ror 61) ^ (W[-2] >> 6) {DC--}
354
355 # Add the sigma0 + w[t-7] + w[t-16] for w[18] and w[19]
356 # to newly calculated sigma1 to get w[18] and w[19]
357 vpaddq YTMP4, YTMP0, YTMP2 # YTMP2 = {W[3], W[2], --, --}
358
359 # Form w[19, w[18], w17], w[16]
360 vpblendd $0xF0, YTMP2, Y_0, Y_0 # Y_0 = {W[3], W[2], W[1], W[0]}
361
362 mov a, y3 # y3 = a # MAJA
363 rorx $41, e, y0 # y0 = e >> 41 # S1A
364 rorx $18, e, y1 # y1 = e >> 18 # S1B
365 add 3*8+frame_XFER(%rsp), h # h = k + w + h # --
366 or c, y3 # y3 = a|c # MAJA
367
368
369 mov f, y2 # y2 = f # CH
370 rorx $34, a, T1 # T1 = a >> 34 # S0B
371 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
372 xor g, y2 # y2 = f^g # CH
373
374
375 rorx $14, e, y1 # y1 = (e >> 14) # S1
376 and e, y2 # y2 = (f^g)&e # CH
377 add h, d # d = k + w + h + d # --
378 and b, y3 # y3 = (a|c)&b # MAJA
379
380 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
381 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
382
383 rorx $39, a, y1 # y1 = a >> 39 # S0A
384 add y0, y2 # y2 = S1 + CH # --
385
386 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
387 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
388
389 rorx $28, a, T1 # T1 = (a >> 28) # S0
390
391 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
392 mov a, T1 # T1 = a # MAJB
393 and c, T1 # T1 = a&c # MAJB
394 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
395
396 add y1, h # h = k + w + h + S0 # --
397 add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
398 add y3, h # h = t1 + S0 + MAJ # --
399
400 RotateState
401
402 rotate_Ys
403 .endm
404
405 .macro DO_4ROUNDS
406
407 ################################### RND N + 0 #########################################
408
409 mov f, y2 # y2 = f # CH
410 rorx $41, e, y0 # y0 = e >> 41 # S1A
411 rorx $18, e, y1 # y1 = e >> 18 # S1B
412 xor g, y2 # y2 = f^g # CH
413
414 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
415 rorx $14, e, y1 # y1 = (e >> 14) # S1
416 and e, y2 # y2 = (f^g)&e # CH
417
418 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
419 rorx $34, a, T1 # T1 = a >> 34 # S0B
420 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
421 rorx $39, a, y1 # y1 = a >> 39 # S0A
422 mov a, y3 # y3 = a # MAJA
423
424 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
425 rorx $28, a, T1 # T1 = (a >> 28) # S0
426 add frame_XFER(%rsp), h # h = k + w + h # --
427 or c, y3 # y3 = a|c # MAJA
428
429 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
430 mov a, T1 # T1 = a # MAJB
431 and b, y3 # y3 = (a|c)&b # MAJA
432 and c, T1 # T1 = a&c # MAJB
433 add y0, y2 # y2 = S1 + CH # --
434
435 add h, d # d = k + w + h + d # --
436 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
437 add y1, h # h = k + w + h + S0 # --
438
439 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
440
441 RotateState
442
443 ################################### RND N + 1 #########################################
444
445 add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
446 mov f, y2 # y2 = f # CH
447 rorx $41, e, y0 # y0 = e >> 41 # S1A
448 rorx $18, e, y1 # y1 = e >> 18 # S1B
449 xor g, y2 # y2 = f^g # CH
450
451 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
452 rorx $14, e, y1 # y1 = (e >> 14) # S1
453 and e, y2 # y2 = (f^g)&e # CH
454 add y3, old_h # h = t1 + S0 + MAJ # --
455
456 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
457 rorx $34, a, T1 # T1 = a >> 34 # S0B
458 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
459 rorx $39, a, y1 # y1 = a >> 39 # S0A
460 mov a, y3 # y3 = a # MAJA
461
462 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
463 rorx $28, a, T1 # T1 = (a >> 28) # S0
464 add 8*1+frame_XFER(%rsp), h # h = k + w + h # --
465 or c, y3 # y3 = a|c # MAJA
466
467 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
468 mov a, T1 # T1 = a # MAJB
469 and b, y3 # y3 = (a|c)&b # MAJA
470 and c, T1 # T1 = a&c # MAJB
471 add y0, y2 # y2 = S1 + CH # --
472
473 add h, d # d = k + w + h + d # --
474 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
475 add y1, h # h = k + w + h + S0 # --
476
477 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
478
479 RotateState
480
481 ################################### RND N + 2 #########################################
482
483 add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
484 mov f, y2 # y2 = f # CH
485 rorx $41, e, y0 # y0 = e >> 41 # S1A
486 rorx $18, e, y1 # y1 = e >> 18 # S1B
487 xor g, y2 # y2 = f^g # CH
488
489 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
490 rorx $14, e, y1 # y1 = (e >> 14) # S1
491 and e, y2 # y2 = (f^g)&e # CH
492 add y3, old_h # h = t1 + S0 + MAJ # --
493
494 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
495 rorx $34, a, T1 # T1 = a >> 34 # S0B
496 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
497 rorx $39, a, y1 # y1 = a >> 39 # S0A
498 mov a, y3 # y3 = a # MAJA
499
500 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
501 rorx $28, a, T1 # T1 = (a >> 28) # S0
502 add 8*2+frame_XFER(%rsp), h # h = k + w + h # --
503 or c, y3 # y3 = a|c # MAJA
504
505 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
506 mov a, T1 # T1 = a # MAJB
507 and b, y3 # y3 = (a|c)&b # MAJA
508 and c, T1 # T1 = a&c # MAJB
509 add y0, y2 # y2 = S1 + CH # --
510
511 add h, d # d = k + w + h + d # --
512 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
513 add y1, h # h = k + w + h + S0 # --
514
515 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
516
517 RotateState
518
519 ################################### RND N + 3 #########################################
520
521 add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
522 mov f, y2 # y2 = f # CH
523 rorx $41, e, y0 # y0 = e >> 41 # S1A
524 rorx $18, e, y1 # y1 = e >> 18 # S1B
525 xor g, y2 # y2 = f^g # CH
526
527 xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
528 rorx $14, e, y1 # y1 = (e >> 14) # S1
529 and e, y2 # y2 = (f^g)&e # CH
530 add y3, old_h # h = t1 + S0 + MAJ # --
531
532 xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
533 rorx $34, a, T1 # T1 = a >> 34 # S0B
534 xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
535 rorx $39, a, y1 # y1 = a >> 39 # S0A
536 mov a, y3 # y3 = a # MAJA
537
538 xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
539 rorx $28, a, T1 # T1 = (a >> 28) # S0
540 add 8*3+frame_XFER(%rsp), h # h = k + w + h # --
541 or c, y3 # y3 = a|c # MAJA
542
543 xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
544 mov a, T1 # T1 = a # MAJB
545 and b, y3 # y3 = (a|c)&b # MAJA
546 and c, T1 # T1 = a&c # MAJB
547 add y0, y2 # y2 = S1 + CH # --
548
549
550 add h, d # d = k + w + h + d # --
551 or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
552 add y1, h # h = k + w + h + S0 # --
553
554 add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
555
556 add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
557
558 add y3, h # h = t1 + S0 + MAJ # --
559
560 RotateState
561
562 .endm
563
564 ########################################################################
565 # void sha512_transform_rorx(void* D, const void* M, uint64_t L)#
566 # Purpose: Updates the SHA512 digest stored at D with the message stored in M.
567 # The size of the message pointed to by M must be an integer multiple of SHA512
568 # message blocks.
569 # L is the message length in SHA512 blocks
570 ########################################################################
571 ENTRY(sha512_transform_rorx)
572 # Allocate Stack Space
573 mov %rsp, %rax
574 sub $frame_size, %rsp
575 and $~(0x20 - 1), %rsp
576 mov %rax, frame_RSPSAVE(%rsp)
577
578 # Save GPRs
579 mov %rbp, frame_GPRSAVE(%rsp)
580 mov %rbx, 8*1+frame_GPRSAVE(%rsp)
581 mov %r12, 8*2+frame_GPRSAVE(%rsp)
582 mov %r13, 8*3+frame_GPRSAVE(%rsp)
583 mov %r14, 8*4+frame_GPRSAVE(%rsp)
584 mov %r15, 8*5+frame_GPRSAVE(%rsp)
585
586 shl $7, NUM_BLKS # convert to bytes
587 jz done_hash
588 add INP, NUM_BLKS # pointer to end of data
589 mov NUM_BLKS, frame_INPEND(%rsp)
590
591 ## load initial digest
592 mov 8*0(CTX),a
593 mov 8*1(CTX),b
594 mov 8*2(CTX),c
595 mov 8*3(CTX),d
596 mov 8*4(CTX),e
597 mov 8*5(CTX),f
598 mov 8*6(CTX),g
599 mov 8*7(CTX),h
600
601 vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
602
603 loop0:
604 lea K512(%rip), TBL
605
606 ## byte swap first 16 dwords
607 COPY_YMM_AND_BSWAP Y_0, (INP), BYTE_FLIP_MASK
608 COPY_YMM_AND_BSWAP Y_1, 1*32(INP), BYTE_FLIP_MASK
609 COPY_YMM_AND_BSWAP Y_2, 2*32(INP), BYTE_FLIP_MASK
610 COPY_YMM_AND_BSWAP Y_3, 3*32(INP), BYTE_FLIP_MASK
611
612 mov INP, frame_INP(%rsp)
613
614 ## schedule 64 input dwords, by doing 12 rounds of 4 each
615 movq $4, frame_SRND(%rsp)
616
617 .align 16
618 loop1:
619 vpaddq (TBL), Y_0, XFER
620 vmovdqa XFER, frame_XFER(%rsp)
621 FOUR_ROUNDS_AND_SCHED
622
623 vpaddq 1*32(TBL), Y_0, XFER
624 vmovdqa XFER, frame_XFER(%rsp)
625 FOUR_ROUNDS_AND_SCHED
626
627 vpaddq 2*32(TBL), Y_0, XFER
628 vmovdqa XFER, frame_XFER(%rsp)
629 FOUR_ROUNDS_AND_SCHED
630
631 vpaddq 3*32(TBL), Y_0, XFER
632 vmovdqa XFER, frame_XFER(%rsp)
633 add $(4*32), TBL
634 FOUR_ROUNDS_AND_SCHED
635
636 subq $1, frame_SRND(%rsp)
637 jne loop1
638
639 movq $2, frame_SRND(%rsp)
640 loop2:
641 vpaddq (TBL), Y_0, XFER
642 vmovdqa XFER, frame_XFER(%rsp)
643 DO_4ROUNDS
644 vpaddq 1*32(TBL), Y_1, XFER
645 vmovdqa XFER, frame_XFER(%rsp)
646 add $(2*32), TBL
647 DO_4ROUNDS
648
649 vmovdqa Y_2, Y_0
650 vmovdqa Y_3, Y_1
651
652 subq $1, frame_SRND(%rsp)
653 jne loop2
654
655 addm 8*0(CTX),a
656 addm 8*1(CTX),b
657 addm 8*2(CTX),c
658 addm 8*3(CTX),d
659 addm 8*4(CTX),e
660 addm 8*5(CTX),f
661 addm 8*6(CTX),g
662 addm 8*7(CTX),h
663
664 mov frame_INP(%rsp), INP
665 add $128, INP
666 cmp frame_INPEND(%rsp), INP
667 jne loop0
668
669 done_hash:
670
671 # Restore GPRs
672 mov frame_GPRSAVE(%rsp) ,%rbp
673 mov 8*1+frame_GPRSAVE(%rsp) ,%rbx
674 mov 8*2+frame_GPRSAVE(%rsp) ,%r12
675 mov 8*3+frame_GPRSAVE(%rsp) ,%r13
676 mov 8*4+frame_GPRSAVE(%rsp) ,%r14
677 mov 8*5+frame_GPRSAVE(%rsp) ,%r15
678
679 # Restore Stack Pointer
680 mov frame_RSPSAVE(%rsp), %rsp
681 ret
682 ENDPROC(sha512_transform_rorx)
683
684 ########################################################################
685 ### Binary Data
686
687 .data
688
689 .align 64
690 # K[t] used in SHA512 hashing
691 K512:
692 .quad 0x428a2f98d728ae22,0x7137449123ef65cd
693 .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
694 .quad 0x3956c25bf348b538,0x59f111f1b605d019
695 .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
696 .quad 0xd807aa98a3030242,0x12835b0145706fbe
697 .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
698 .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
699 .quad 0x9bdc06a725c71235,0xc19bf174cf692694
700 .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
701 .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
702 .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
703 .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
704 .quad 0x983e5152ee66dfab,0xa831c66d2db43210
705 .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
706 .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
707 .quad 0x06ca6351e003826f,0x142929670a0e6e70
708 .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
709 .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
710 .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
711 .quad 0x81c2c92e47edaee6,0x92722c851482353b
712 .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
713 .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
714 .quad 0xd192e819d6ef5218,0xd69906245565a910
715 .quad 0xf40e35855771202a,0x106aa07032bbd1b8
716 .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
717 .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
718 .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
719 .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
720 .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
721 .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
722 .quad 0x90befffa23631e28,0xa4506cebde82bde9
723 .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
724 .quad 0xca273eceea26619c,0xd186b8c721c0c207
725 .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
726 .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
727 .quad 0x113f9804bef90dae,0x1b710b35131c471b
728 .quad 0x28db77f523047d84,0x32caab7b40c72493
729 .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
730 .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
731 .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
732
733 .align 32
734
735 # Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
736 PSHUFFLE_BYTE_FLIP_MASK:
737 .octa 0x08090a0b0c0d0e0f0001020304050607
738 .octa 0x18191a1b1c1d1e1f1011121314151617
739
740 MASK_YMM_LO:
741 .octa 0x00000000000000000000000000000000
742 .octa 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
743 #endif
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