1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * x86_64/AVX2/AES-NI assembler implementation of Camellia
4 *
5 * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
6 */
7
8#include <linux/linkage.h>
9#include <asm/frame.h>
10
11#define CAMELLIA_TABLE_BYTE_LEN 272
12
13/* struct camellia_ctx: */
14#define key_table 0
15#define key_length CAMELLIA_TABLE_BYTE_LEN
16
17/* register macros */
18#define CTX %rdi
19#define RIO %r8
20
21/**********************************************************************
22 helper macros
23 **********************************************************************/
24#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
25 vpand x, mask4bit, tmp0; \
26 vpandn x, mask4bit, x; \
27 vpsrld $4, x, x; \
28 \
29 vpshufb tmp0, lo_t, tmp0; \
30 vpshufb x, hi_t, x; \
31 vpxor tmp0, x, x;
32
33#define ymm0_x xmm0
34#define ymm1_x xmm1
35#define ymm2_x xmm2
36#define ymm3_x xmm3
37#define ymm4_x xmm4
38#define ymm5_x xmm5
39#define ymm6_x xmm6
40#define ymm7_x xmm7
41#define ymm8_x xmm8
42#define ymm9_x xmm9
43#define ymm10_x xmm10
44#define ymm11_x xmm11
45#define ymm12_x xmm12
46#define ymm13_x xmm13
47#define ymm14_x xmm14
48#define ymm15_x xmm15
49
50/**********************************************************************
51 32-way camellia
52 **********************************************************************/
53
54/*
55 * IN:
56 * x0..x7: byte-sliced AB state
57 * mem_cd: register pointer storing CD state
58 * key: index for key material
59 * OUT:
60 * x0..x7: new byte-sliced CD state
61 */
62#define roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \
63 t7, mem_cd, key) \
64 /* \
65 * S-function with AES subbytes \
66 */ \
67 vbroadcasti128 .Linv_shift_row(%rip), t4; \
68 vpbroadcastd .L0f0f0f0f(%rip), t7; \
69 vbroadcasti128 .Lpre_tf_lo_s1(%rip), t5; \
70 vbroadcasti128 .Lpre_tf_hi_s1(%rip), t6; \
71 vbroadcasti128 .Lpre_tf_lo_s4(%rip), t2; \
72 vbroadcasti128 .Lpre_tf_hi_s4(%rip), t3; \
73 \
74 /* AES inverse shift rows */ \
75 vpshufb t4, x0, x0; \
76 vpshufb t4, x7, x7; \
77 vpshufb t4, x3, x3; \
78 vpshufb t4, x6, x6; \
79 vpshufb t4, x2, x2; \
80 vpshufb t4, x5, x5; \
81 vpshufb t4, x1, x1; \
82 vpshufb t4, x4, x4; \
83 \
84 /* prefilter sboxes 1, 2 and 3 */ \
85 /* prefilter sbox 4 */ \
86 filter_8bit(x0, t5, t6, t7, t4); \
87 filter_8bit(x7, t5, t6, t7, t4); \
88 vextracti128 $1, x0, t0##_x; \
89 vextracti128 $1, x7, t1##_x; \
90 filter_8bit(x3, t2, t3, t7, t4); \
91 filter_8bit(x6, t2, t3, t7, t4); \
92 vextracti128 $1, x3, t3##_x; \
93 vextracti128 $1, x6, t2##_x; \
94 filter_8bit(x2, t5, t6, t7, t4); \
95 filter_8bit(x5, t5, t6, t7, t4); \
96 filter_8bit(x1, t5, t6, t7, t4); \
97 filter_8bit(x4, t5, t6, t7, t4); \
98 \
99 vpxor t4##_x, t4##_x, t4##_x; \
100 \
101 /* AES subbytes + AES shift rows */ \
102 vextracti128 $1, x2, t6##_x; \
103 vextracti128 $1, x5, t5##_x; \
104 vaesenclast t4##_x, x0##_x, x0##_x; \
105 vaesenclast t4##_x, t0##_x, t0##_x; \
106 vinserti128 $1, t0##_x, x0, x0; \
107 vaesenclast t4##_x, x7##_x, x7##_x; \
108 vaesenclast t4##_x, t1##_x, t1##_x; \
109 vinserti128 $1, t1##_x, x7, x7; \
110 vaesenclast t4##_x, x3##_x, x3##_x; \
111 vaesenclast t4##_x, t3##_x, t3##_x; \
112 vinserti128 $1, t3##_x, x3, x3; \
113 vaesenclast t4##_x, x6##_x, x6##_x; \
114 vaesenclast t4##_x, t2##_x, t2##_x; \
115 vinserti128 $1, t2##_x, x6, x6; \
116 vextracti128 $1, x1, t3##_x; \
117 vextracti128 $1, x4, t2##_x; \
118 vbroadcasti128 .Lpost_tf_lo_s1(%rip), t0; \
119 vbroadcasti128 .Lpost_tf_hi_s1(%rip), t1; \
120 vaesenclast t4##_x, x2##_x, x2##_x; \
121 vaesenclast t4##_x, t6##_x, t6##_x; \
122 vinserti128 $1, t6##_x, x2, x2; \
123 vaesenclast t4##_x, x5##_x, x5##_x; \
124 vaesenclast t4##_x, t5##_x, t5##_x; \
125 vinserti128 $1, t5##_x, x5, x5; \
126 vaesenclast t4##_x, x1##_x, x1##_x; \
127 vaesenclast t4##_x, t3##_x, t3##_x; \
128 vinserti128 $1, t3##_x, x1, x1; \
129 vaesenclast t4##_x, x4##_x, x4##_x; \
130 vaesenclast t4##_x, t2##_x, t2##_x; \
131 vinserti128 $1, t2##_x, x4, x4; \
132 \
133 /* postfilter sboxes 1 and 4 */ \
134 vbroadcasti128 .Lpost_tf_lo_s3(%rip), t2; \
135 vbroadcasti128 .Lpost_tf_hi_s3(%rip), t3; \
136 filter_8bit(x0, t0, t1, t7, t6); \
137 filter_8bit(x7, t0, t1, t7, t6); \
138 filter_8bit(x3, t0, t1, t7, t6); \
139 filter_8bit(x6, t0, t1, t7, t6); \
140 \
141 /* postfilter sbox 3 */ \
142 vbroadcasti128 .Lpost_tf_lo_s2(%rip), t4; \
143 vbroadcasti128 .Lpost_tf_hi_s2(%rip), t5; \
144 filter_8bit(x2, t2, t3, t7, t6); \
145 filter_8bit(x5, t2, t3, t7, t6); \
146 \
147 vpbroadcastq key, t0; /* higher 64-bit duplicate ignored */ \
148 \
149 /* postfilter sbox 2 */ \
150 filter_8bit(x1, t4, t5, t7, t2); \
151 filter_8bit(x4, t4, t5, t7, t2); \
152 vpxor t7, t7, t7; \
153 \
154 vpsrldq $1, t0, t1; \
155 vpsrldq $2, t0, t2; \
156 vpshufb t7, t1, t1; \
157 vpsrldq $3, t0, t3; \
158 \
159 /* P-function */ \
160 vpxor x5, x0, x0; \
161 vpxor x6, x1, x1; \
162 vpxor x7, x2, x2; \
163 vpxor x4, x3, x3; \
164 \
165 vpshufb t7, t2, t2; \
166 vpsrldq $4, t0, t4; \
167 vpshufb t7, t3, t3; \
168 vpsrldq $5, t0, t5; \
169 vpshufb t7, t4, t4; \
170 \
171 vpxor x2, x4, x4; \
172 vpxor x3, x5, x5; \
173 vpxor x0, x6, x6; \
174 vpxor x1, x7, x7; \
175 \
176 vpsrldq $6, t0, t6; \
177 vpshufb t7, t5, t5; \
178 vpshufb t7, t6, t6; \
179 \
180 vpxor x7, x0, x0; \
181 vpxor x4, x1, x1; \
182 vpxor x5, x2, x2; \
183 vpxor x6, x3, x3; \
184 \
185 vpxor x3, x4, x4; \
186 vpxor x0, x5, x5; \
187 vpxor x1, x6, x6; \
188 vpxor x2, x7, x7; /* note: high and low parts swapped */ \
189 \
190 /* Add key material and result to CD (x becomes new CD) */ \
191 \
192 vpxor t6, x1, x1; \
193 vpxor 5 * 32(mem_cd), x1, x1; \
194 \
195 vpsrldq $7, t0, t6; \
196 vpshufb t7, t0, t0; \
197 vpshufb t7, t6, t7; \
198 \
199 vpxor t7, x0, x0; \
200 vpxor 4 * 32(mem_cd), x0, x0; \
201 \
202 vpxor t5, x2, x2; \
203 vpxor 6 * 32(mem_cd), x2, x2; \
204 \
205 vpxor t4, x3, x3; \
206 vpxor 7 * 32(mem_cd), x3, x3; \
207 \
208 vpxor t3, x4, x4; \
209 vpxor 0 * 32(mem_cd), x4, x4; \
210 \
211 vpxor t2, x5, x5; \
212 vpxor 1 * 32(mem_cd), x5, x5; \
213 \
214 vpxor t1, x6, x6; \
215 vpxor 2 * 32(mem_cd), x6, x6; \
216 \
217 vpxor t0, x7, x7; \
218 vpxor 3 * 32(mem_cd), x7, x7;
219
220/*
221 * Size optimization... with inlined roundsm32 binary would be over 5 times
222 * larger and would only marginally faster.
223 */
224SYM_FUNC_START_LOCAL(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
225 roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
226 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
227 %rcx, (%r9));
228 RET;
229SYM_FUNC_END(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
230
231SYM_FUNC_START_LOCAL(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
232 roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
233 %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
234 %rax, (%r9));
235 RET;
236SYM_FUNC_END(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
237
238/*
239 * IN/OUT:
240 * x0..x7: byte-sliced AB state preloaded
241 * mem_ab: byte-sliced AB state in memory
242 * mem_cb: byte-sliced CD state in memory
243 */
244#define two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
245 y6, y7, mem_ab, mem_cd, i, dir, store_ab) \
246 leaq (key_table + (i) * 8)(CTX), %r9; \
247 call roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \
248 \
249 vmovdqu x0, 4 * 32(mem_cd); \
250 vmovdqu x1, 5 * 32(mem_cd); \
251 vmovdqu x2, 6 * 32(mem_cd); \
252 vmovdqu x3, 7 * 32(mem_cd); \
253 vmovdqu x4, 0 * 32(mem_cd); \
254 vmovdqu x5, 1 * 32(mem_cd); \
255 vmovdqu x6, 2 * 32(mem_cd); \
256 vmovdqu x7, 3 * 32(mem_cd); \
257 \
258 leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \
259 call roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \
260 \
261 store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab);
262
263#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */
264
265#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \
266 /* Store new AB state */ \
267 vmovdqu x4, 4 * 32(mem_ab); \
268 vmovdqu x5, 5 * 32(mem_ab); \
269 vmovdqu x6, 6 * 32(mem_ab); \
270 vmovdqu x7, 7 * 32(mem_ab); \
271 vmovdqu x0, 0 * 32(mem_ab); \
272 vmovdqu x1, 1 * 32(mem_ab); \
273 vmovdqu x2, 2 * 32(mem_ab); \
274 vmovdqu x3, 3 * 32(mem_ab);
275
276#define enc_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
277 y6, y7, mem_ab, mem_cd, i) \
278 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
279 y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \
280 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
281 y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \
282 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
283 y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store);
284
285#define dec_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
286 y6, y7, mem_ab, mem_cd, i) \
287 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
288 y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \
289 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
290 y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \
291 two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
292 y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store);
293
294/*
295 * IN:
296 * v0..3: byte-sliced 32-bit integers
297 * OUT:
298 * v0..3: (IN <<< 1)
299 */
300#define rol32_1_32(v0, v1, v2, v3, t0, t1, t2, zero) \
301 vpcmpgtb v0, zero, t0; \
302 vpaddb v0, v0, v0; \
303 vpabsb t0, t0; \
304 \
305 vpcmpgtb v1, zero, t1; \
306 vpaddb v1, v1, v1; \
307 vpabsb t1, t1; \
308 \
309 vpcmpgtb v2, zero, t2; \
310 vpaddb v2, v2, v2; \
311 vpabsb t2, t2; \
312 \
313 vpor t0, v1, v1; \
314 \
315 vpcmpgtb v3, zero, t0; \
316 vpaddb v3, v3, v3; \
317 vpabsb t0, t0; \
318 \
319 vpor t1, v2, v2; \
320 vpor t2, v3, v3; \
321 vpor t0, v0, v0;
322
323/*
324 * IN:
325 * r: byte-sliced AB state in memory
326 * l: byte-sliced CD state in memory
327 * OUT:
328 * x0..x7: new byte-sliced CD state
329 */
330#define fls32(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \
331 tt1, tt2, tt3, kll, klr, krl, krr) \
332 /* \
333 * t0 = kll; \
334 * t0 &= ll; \
335 * lr ^= rol32(t0, 1); \
336 */ \
337 vpbroadcastd kll, t0; /* only lowest 32-bit used */ \
338 vpxor tt0, tt0, tt0; \
339 vpshufb tt0, t0, t3; \
340 vpsrldq $1, t0, t0; \
341 vpshufb tt0, t0, t2; \
342 vpsrldq $1, t0, t0; \
343 vpshufb tt0, t0, t1; \
344 vpsrldq $1, t0, t0; \
345 vpshufb tt0, t0, t0; \
346 \
347 vpand l0, t0, t0; \
348 vpand l1, t1, t1; \
349 vpand l2, t2, t2; \
350 vpand l3, t3, t3; \
351 \
352 rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
353 \
354 vpxor l4, t0, l4; \
355 vpbroadcastd krr, t0; /* only lowest 32-bit used */ \
356 vmovdqu l4, 4 * 32(l); \
357 vpxor l5, t1, l5; \
358 vmovdqu l5, 5 * 32(l); \
359 vpxor l6, t2, l6; \
360 vmovdqu l6, 6 * 32(l); \
361 vpxor l7, t3, l7; \
362 vmovdqu l7, 7 * 32(l); \
363 \
364 /* \
365 * t2 = krr; \
366 * t2 |= rr; \
367 * rl ^= t2; \
368 */ \
369 \
370 vpshufb tt0, t0, t3; \
371 vpsrldq $1, t0, t0; \
372 vpshufb tt0, t0, t2; \
373 vpsrldq $1, t0, t0; \
374 vpshufb tt0, t0, t1; \
375 vpsrldq $1, t0, t0; \
376 vpshufb tt0, t0, t0; \
377 \
378 vpor 4 * 32(r), t0, t0; \
379 vpor 5 * 32(r), t1, t1; \
380 vpor 6 * 32(r), t2, t2; \
381 vpor 7 * 32(r), t3, t3; \
382 \
383 vpxor 0 * 32(r), t0, t0; \
384 vpxor 1 * 32(r), t1, t1; \
385 vpxor 2 * 32(r), t2, t2; \
386 vpxor 3 * 32(r), t3, t3; \
387 vmovdqu t0, 0 * 32(r); \
388 vpbroadcastd krl, t0; /* only lowest 32-bit used */ \
389 vmovdqu t1, 1 * 32(r); \
390 vmovdqu t2, 2 * 32(r); \
391 vmovdqu t3, 3 * 32(r); \
392 \
393 /* \
394 * t2 = krl; \
395 * t2 &= rl; \
396 * rr ^= rol32(t2, 1); \
397 */ \
398 vpshufb tt0, t0, t3; \
399 vpsrldq $1, t0, t0; \
400 vpshufb tt0, t0, t2; \
401 vpsrldq $1, t0, t0; \
402 vpshufb tt0, t0, t1; \
403 vpsrldq $1, t0, t0; \
404 vpshufb tt0, t0, t0; \
405 \
406 vpand 0 * 32(r), t0, t0; \
407 vpand 1 * 32(r), t1, t1; \
408 vpand 2 * 32(r), t2, t2; \
409 vpand 3 * 32(r), t3, t3; \
410 \
411 rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
412 \
413 vpxor 4 * 32(r), t0, t0; \
414 vpxor 5 * 32(r), t1, t1; \
415 vpxor 6 * 32(r), t2, t2; \
416 vpxor 7 * 32(r), t3, t3; \
417 vmovdqu t0, 4 * 32(r); \
418 vpbroadcastd klr, t0; /* only lowest 32-bit used */ \
419 vmovdqu t1, 5 * 32(r); \
420 vmovdqu t2, 6 * 32(r); \
421 vmovdqu t3, 7 * 32(r); \
422 \
423 /* \
424 * t0 = klr; \
425 * t0 |= lr; \
426 * ll ^= t0; \
427 */ \
428 \
429 vpshufb tt0, t0, t3; \
430 vpsrldq $1, t0, t0; \
431 vpshufb tt0, t0, t2; \
432 vpsrldq $1, t0, t0; \
433 vpshufb tt0, t0, t1; \
434 vpsrldq $1, t0, t0; \
435 vpshufb tt0, t0, t0; \
436 \
437 vpor l4, t0, t0; \
438 vpor l5, t1, t1; \
439 vpor l6, t2, t2; \
440 vpor l7, t3, t3; \
441 \
442 vpxor l0, t0, l0; \
443 vmovdqu l0, 0 * 32(l); \
444 vpxor l1, t1, l1; \
445 vmovdqu l1, 1 * 32(l); \
446 vpxor l2, t2, l2; \
447 vmovdqu l2, 2 * 32(l); \
448 vpxor l3, t3, l3; \
449 vmovdqu l3, 3 * 32(l);
450
451#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
452 vpunpckhdq x1, x0, t2; \
453 vpunpckldq x1, x0, x0; \
454 \
455 vpunpckldq x3, x2, t1; \
456 vpunpckhdq x3, x2, x2; \
457 \
458 vpunpckhqdq t1, x0, x1; \
459 vpunpcklqdq t1, x0, x0; \
460 \
461 vpunpckhqdq x2, t2, x3; \
462 vpunpcklqdq x2, t2, x2;
463
464#define byteslice_16x16b_fast(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, \
465 a3, b3, c3, d3, st0, st1) \
466 vmovdqu d2, st0; \
467 vmovdqu d3, st1; \
468 transpose_4x4(a0, a1, a2, a3, d2, d3); \
469 transpose_4x4(b0, b1, b2, b3, d2, d3); \
470 vmovdqu st0, d2; \
471 vmovdqu st1, d3; \
472 \
473 vmovdqu a0, st0; \
474 vmovdqu a1, st1; \
475 transpose_4x4(c0, c1, c2, c3, a0, a1); \
476 transpose_4x4(d0, d1, d2, d3, a0, a1); \
477 \
478 vbroadcasti128 .Lshufb_16x16b(%rip), a0; \
479 vmovdqu st1, a1; \
480 vpshufb a0, a2, a2; \
481 vpshufb a0, a3, a3; \
482 vpshufb a0, b0, b0; \
483 vpshufb a0, b1, b1; \
484 vpshufb a0, b2, b2; \
485 vpshufb a0, b3, b3; \
486 vpshufb a0, a1, a1; \
487 vpshufb a0, c0, c0; \
488 vpshufb a0, c1, c1; \
489 vpshufb a0, c2, c2; \
490 vpshufb a0, c3, c3; \
491 vpshufb a0, d0, d0; \
492 vpshufb a0, d1, d1; \
493 vpshufb a0, d2, d2; \
494 vpshufb a0, d3, d3; \
495 vmovdqu d3, st1; \
496 vmovdqu st0, d3; \
497 vpshufb a0, d3, a0; \
498 vmovdqu d2, st0; \
499 \
500 transpose_4x4(a0, b0, c0, d0, d2, d3); \
501 transpose_4x4(a1, b1, c1, d1, d2, d3); \
502 vmovdqu st0, d2; \
503 vmovdqu st1, d3; \
504 \
505 vmovdqu b0, st0; \
506 vmovdqu b1, st1; \
507 transpose_4x4(a2, b2, c2, d2, b0, b1); \
508 transpose_4x4(a3, b3, c3, d3, b0, b1); \
509 vmovdqu st0, b0; \
510 vmovdqu st1, b1; \
511 /* does not adjust output bytes inside vectors */
512
513/* load blocks to registers and apply pre-whitening */
514#define inpack32_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
515 y6, y7, rio, key) \
516 vpbroadcastq key, x0; \
517 vpshufb .Lpack_bswap(%rip), x0, x0; \
518 \
519 vpxor 0 * 32(rio), x0, y7; \
520 vpxor 1 * 32(rio), x0, y6; \
521 vpxor 2 * 32(rio), x0, y5; \
522 vpxor 3 * 32(rio), x0, y4; \
523 vpxor 4 * 32(rio), x0, y3; \
524 vpxor 5 * 32(rio), x0, y2; \
525 vpxor 6 * 32(rio), x0, y1; \
526 vpxor 7 * 32(rio), x0, y0; \
527 vpxor 8 * 32(rio), x0, x7; \
528 vpxor 9 * 32(rio), x0, x6; \
529 vpxor 10 * 32(rio), x0, x5; \
530 vpxor 11 * 32(rio), x0, x4; \
531 vpxor 12 * 32(rio), x0, x3; \
532 vpxor 13 * 32(rio), x0, x2; \
533 vpxor 14 * 32(rio), x0, x1; \
534 vpxor 15 * 32(rio), x0, x0;
535
536/* byteslice pre-whitened blocks and store to temporary memory */
537#define inpack32_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
538 y6, y7, mem_ab, mem_cd) \
539 byteslice_16x16b_fast(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, \
540 y4, y5, y6, y7, (mem_ab), (mem_cd)); \
541 \
542 vmovdqu x0, 0 * 32(mem_ab); \
543 vmovdqu x1, 1 * 32(mem_ab); \
544 vmovdqu x2, 2 * 32(mem_ab); \
545 vmovdqu x3, 3 * 32(mem_ab); \
546 vmovdqu x4, 4 * 32(mem_ab); \
547 vmovdqu x5, 5 * 32(mem_ab); \
548 vmovdqu x6, 6 * 32(mem_ab); \
549 vmovdqu x7, 7 * 32(mem_ab); \
550 vmovdqu y0, 0 * 32(mem_cd); \
551 vmovdqu y1, 1 * 32(mem_cd); \
552 vmovdqu y2, 2 * 32(mem_cd); \
553 vmovdqu y3, 3 * 32(mem_cd); \
554 vmovdqu y4, 4 * 32(mem_cd); \
555 vmovdqu y5, 5 * 32(mem_cd); \
556 vmovdqu y6, 6 * 32(mem_cd); \
557 vmovdqu y7, 7 * 32(mem_cd);
558
559/* de-byteslice, apply post-whitening and store blocks */
560#define outunpack32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
561 y5, y6, y7, key, stack_tmp0, stack_tmp1) \
562 byteslice_16x16b_fast(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, \
563 y3, y7, x3, x7, stack_tmp0, stack_tmp1); \
564 \
565 vmovdqu x0, stack_tmp0; \
566 \
567 vpbroadcastq key, x0; \
568 vpshufb .Lpack_bswap(%rip), x0, x0; \
569 \
570 vpxor x0, y7, y7; \
571 vpxor x0, y6, y6; \
572 vpxor x0, y5, y5; \
573 vpxor x0, y4, y4; \
574 vpxor x0, y3, y3; \
575 vpxor x0, y2, y2; \
576 vpxor x0, y1, y1; \
577 vpxor x0, y0, y0; \
578 vpxor x0, x7, x7; \
579 vpxor x0, x6, x6; \
580 vpxor x0, x5, x5; \
581 vpxor x0, x4, x4; \
582 vpxor x0, x3, x3; \
583 vpxor x0, x2, x2; \
584 vpxor x0, x1, x1; \
585 vpxor stack_tmp0, x0, x0;
586
587#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
588 y6, y7, rio) \
589 vmovdqu x0, 0 * 32(rio); \
590 vmovdqu x1, 1 * 32(rio); \
591 vmovdqu x2, 2 * 32(rio); \
592 vmovdqu x3, 3 * 32(rio); \
593 vmovdqu x4, 4 * 32(rio); \
594 vmovdqu x5, 5 * 32(rio); \
595 vmovdqu x6, 6 * 32(rio); \
596 vmovdqu x7, 7 * 32(rio); \
597 vmovdqu y0, 8 * 32(rio); \
598 vmovdqu y1, 9 * 32(rio); \
599 vmovdqu y2, 10 * 32(rio); \
600 vmovdqu y3, 11 * 32(rio); \
601 vmovdqu y4, 12 * 32(rio); \
602 vmovdqu y5, 13 * 32(rio); \
603 vmovdqu y6, 14 * 32(rio); \
604 vmovdqu y7, 15 * 32(rio);
605
606
607.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32
608.align 32
609#define SHUFB_BYTES(idx) \
610 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
611.Lshufb_16x16b:
612 .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
613 .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
614
615.section .rodata.cst32.pack_bswap, "aM", @progbits, 32
616.align 32
617.Lpack_bswap:
618 .long 0x00010203, 0x04050607, 0x80808080, 0x80808080
619 .long 0x00010203, 0x04050607, 0x80808080, 0x80808080
620
621/* NB: section is mergeable, all elements must be aligned 16-byte blocks */
622.section .rodata.cst16, "aM", @progbits, 16
623.align 16
624
625/*
626 * pre-SubByte transform
627 *
628 * pre-lookup for sbox1, sbox2, sbox3:
629 * swap_bitendianness(
630 * isom_map_camellia_to_aes(
631 * camellia_f(
632 * swap_bitendianess(in)
633 * )
634 * )
635 * )
636 *
637 * (note: '⊕ 0xc5' inside camellia_f())
638 */
639.Lpre_tf_lo_s1:
640 .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86
641 .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88
642.Lpre_tf_hi_s1:
643 .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a
644 .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23
645
646/*
647 * pre-SubByte transform
648 *
649 * pre-lookup for sbox4:
650 * swap_bitendianness(
651 * isom_map_camellia_to_aes(
652 * camellia_f(
653 * swap_bitendianess(in <<< 1)
654 * )
655 * )
656 * )
657 *
658 * (note: '⊕ 0xc5' inside camellia_f())
659 */
660.Lpre_tf_lo_s4:
661 .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25
662 .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74
663.Lpre_tf_hi_s4:
664 .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72
665 .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf
666
667/*
668 * post-SubByte transform
669 *
670 * post-lookup for sbox1, sbox4:
671 * swap_bitendianness(
672 * camellia_h(
673 * isom_map_aes_to_camellia(
674 * swap_bitendianness(
675 * aes_inverse_affine_transform(in)
676 * )
677 * )
678 * )
679 * )
680 *
681 * (note: '⊕ 0x6e' inside camellia_h())
682 */
683.Lpost_tf_lo_s1:
684 .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31
685 .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1
686.Lpost_tf_hi_s1:
687 .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8
688 .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c
689
690/*
691 * post-SubByte transform
692 *
693 * post-lookup for sbox2:
694 * swap_bitendianness(
695 * camellia_h(
696 * isom_map_aes_to_camellia(
697 * swap_bitendianness(
698 * aes_inverse_affine_transform(in)
699 * )
700 * )
701 * )
702 * ) <<< 1
703 *
704 * (note: '⊕ 0x6e' inside camellia_h())
705 */
706.Lpost_tf_lo_s2:
707 .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62
708 .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3
709.Lpost_tf_hi_s2:
710 .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51
711 .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18
712
713/*
714 * post-SubByte transform
715 *
716 * post-lookup for sbox3:
717 * swap_bitendianness(
718 * camellia_h(
719 * isom_map_aes_to_camellia(
720 * swap_bitendianness(
721 * aes_inverse_affine_transform(in)
722 * )
723 * )
724 * )
725 * ) >>> 1
726 *
727 * (note: '⊕ 0x6e' inside camellia_h())
728 */
729.Lpost_tf_lo_s3:
730 .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98
731 .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8
732.Lpost_tf_hi_s3:
733 .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54
734 .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06
735
736/* For isolating SubBytes from AESENCLAST, inverse shift row */
737.Linv_shift_row:
738 .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
739 .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
740
741.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
742.align 4
743/* 4-bit mask */
744.L0f0f0f0f:
745 .long 0x0f0f0f0f
746
747.text
748
749SYM_FUNC_START_LOCAL(__camellia_enc_blk32)
750 /* input:
751 * %rdi: ctx, CTX
752 * %rax: temporary storage, 512 bytes
753 * %ymm0..%ymm15: 32 plaintext blocks
754 * output:
755 * %ymm0..%ymm15: 32 encrypted blocks, order swapped:
756 * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
757 */
758 FRAME_BEGIN
759
760 leaq 8 * 32(%rax), %rcx;
761
762 inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
763 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
764 %ymm15, %rax, %rcx);
765
766 enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
767 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
768 %ymm15, %rax, %rcx, 0);
769
770 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
771 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
772 %ymm15,
773 ((key_table + (8) * 8) + 0)(CTX),
774 ((key_table + (8) * 8) + 4)(CTX),
775 ((key_table + (8) * 8) + 8)(CTX),
776 ((key_table + (8) * 8) + 12)(CTX));
777
778 enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
779 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
780 %ymm15, %rax, %rcx, 8);
781
782 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
783 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
784 %ymm15,
785 ((key_table + (16) * 8) + 0)(CTX),
786 ((key_table + (16) * 8) + 4)(CTX),
787 ((key_table + (16) * 8) + 8)(CTX),
788 ((key_table + (16) * 8) + 12)(CTX));
789
790 enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
791 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
792 %ymm15, %rax, %rcx, 16);
793
794 movl $24, %r8d;
795 cmpl $16, key_length(CTX);
796 jne .Lenc_max32;
797
798.Lenc_done:
799 /* load CD for output */
800 vmovdqu 0 * 32(%rcx), %ymm8;
801 vmovdqu 1 * 32(%rcx), %ymm9;
802 vmovdqu 2 * 32(%rcx), %ymm10;
803 vmovdqu 3 * 32(%rcx), %ymm11;
804 vmovdqu 4 * 32(%rcx), %ymm12;
805 vmovdqu 5 * 32(%rcx), %ymm13;
806 vmovdqu 6 * 32(%rcx), %ymm14;
807 vmovdqu 7 * 32(%rcx), %ymm15;
808
809 outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
810 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
811 %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
812
813 FRAME_END
814 RET;
815
816.align 8
817.Lenc_max32:
818 movl $32, %r8d;
819
820 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
821 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
822 %ymm15,
823 ((key_table + (24) * 8) + 0)(CTX),
824 ((key_table + (24) * 8) + 4)(CTX),
825 ((key_table + (24) * 8) + 8)(CTX),
826 ((key_table + (24) * 8) + 12)(CTX));
827
828 enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
829 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
830 %ymm15, %rax, %rcx, 24);
831
832 jmp .Lenc_done;
833SYM_FUNC_END(__camellia_enc_blk32)
834
835SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
836 /* input:
837 * %rdi: ctx, CTX
838 * %rax: temporary storage, 512 bytes
839 * %r8d: 24 for 16 byte key, 32 for larger
840 * %ymm0..%ymm15: 16 encrypted blocks
841 * output:
842 * %ymm0..%ymm15: 16 plaintext blocks, order swapped:
843 * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
844 */
845 FRAME_BEGIN
846
847 leaq 8 * 32(%rax), %rcx;
848
849 inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
850 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
851 %ymm15, %rax, %rcx);
852
853 cmpl $32, %r8d;
854 je .Ldec_max32;
855
856.Ldec_max24:
857 dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
858 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
859 %ymm15, %rax, %rcx, 16);
860
861 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
862 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
863 %ymm15,
864 ((key_table + (16) * 8) + 8)(CTX),
865 ((key_table + (16) * 8) + 12)(CTX),
866 ((key_table + (16) * 8) + 0)(CTX),
867 ((key_table + (16) * 8) + 4)(CTX));
868
869 dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
870 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
871 %ymm15, %rax, %rcx, 8);
872
873 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
874 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
875 %ymm15,
876 ((key_table + (8) * 8) + 8)(CTX),
877 ((key_table + (8) * 8) + 12)(CTX),
878 ((key_table + (8) * 8) + 0)(CTX),
879 ((key_table + (8) * 8) + 4)(CTX));
880
881 dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
882 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
883 %ymm15, %rax, %rcx, 0);
884
885 /* load CD for output */
886 vmovdqu 0 * 32(%rcx), %ymm8;
887 vmovdqu 1 * 32(%rcx), %ymm9;
888 vmovdqu 2 * 32(%rcx), %ymm10;
889 vmovdqu 3 * 32(%rcx), %ymm11;
890 vmovdqu 4 * 32(%rcx), %ymm12;
891 vmovdqu 5 * 32(%rcx), %ymm13;
892 vmovdqu 6 * 32(%rcx), %ymm14;
893 vmovdqu 7 * 32(%rcx), %ymm15;
894
895 outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
896 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
897 %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
898
899 FRAME_END
900 RET;
901
902.align 8
903.Ldec_max32:
904 dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
905 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
906 %ymm15, %rax, %rcx, 24);
907
908 fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
909 %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
910 %ymm15,
911 ((key_table + (24) * 8) + 8)(CTX),
912 ((key_table + (24) * 8) + 12)(CTX),
913 ((key_table + (24) * 8) + 0)(CTX),
914 ((key_table + (24) * 8) + 4)(CTX));
915
916 jmp .Ldec_max24;
917SYM_FUNC_END(__camellia_dec_blk32)
918
919SYM_FUNC_START(camellia_ecb_enc_32way)
920 /* input:
921 * %rdi: ctx, CTX
922 * %rsi: dst (32 blocks)
923 * %rdx: src (32 blocks)
924 */
925 FRAME_BEGIN
926
927 vzeroupper;
928
929 inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
930 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
931 %ymm15, %rdx, (key_table)(CTX));
932
933 /* now dst can be used as temporary buffer (even in src == dst case) */
934 movq %rsi, %rax;
935
936 call __camellia_enc_blk32;
937
938 write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
939 %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
940 %ymm8, %rsi);
941
942 vzeroupper;
943
944 FRAME_END
945 RET;
946SYM_FUNC_END(camellia_ecb_enc_32way)
947
948SYM_FUNC_START(camellia_ecb_dec_32way)
949 /* input:
950 * %rdi: ctx, CTX
951 * %rsi: dst (32 blocks)
952 * %rdx: src (32 blocks)
953 */
954 FRAME_BEGIN
955
956 vzeroupper;
957
958 cmpl $16, key_length(CTX);
959 movl $32, %r8d;
960 movl $24, %eax;
961 cmovel %eax, %r8d; /* max */
962
963 inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
964 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
965 %ymm15, %rdx, (key_table)(CTX, %r8, 8));
966
967 /* now dst can be used as temporary buffer (even in src == dst case) */
968 movq %rsi, %rax;
969
970 call __camellia_dec_blk32;
971
972 write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
973 %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
974 %ymm8, %rsi);
975
976 vzeroupper;
977
978 FRAME_END
979 RET;
980SYM_FUNC_END(camellia_ecb_dec_32way)
981
982SYM_FUNC_START(camellia_cbc_dec_32way)
983 /* input:
984 * %rdi: ctx, CTX
985 * %rsi: dst (32 blocks)
986 * %rdx: src (32 blocks)
987 */
988 FRAME_BEGIN
989 subq $(16 * 32), %rsp;
990
991 vzeroupper;
992
993 cmpl $16, key_length(CTX);
994 movl $32, %r8d;
995 movl $24, %eax;
996 cmovel %eax, %r8d; /* max */
997
998 inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
999 %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
1000 %ymm15, %rdx, (key_table)(CTX, %r8, 8));
1001
1002 cmpq %rsi, %rdx;
1003 je .Lcbc_dec_use_stack;
1004
1005 /* dst can be used as temporary storage, src is not overwritten. */
1006 movq %rsi, %rax;
1007 jmp .Lcbc_dec_continue;
1008
1009.Lcbc_dec_use_stack:
1010 /*
1011 * dst still in-use (because dst == src), so use stack for temporary
1012 * storage.
1013 */
1014 movq %rsp, %rax;
1015
1016.Lcbc_dec_continue:
1017 call __camellia_dec_blk32;
1018
1019 vmovdqu %ymm7, (%rax);
1020 vpxor %ymm7, %ymm7, %ymm7;
1021 vinserti128 $1, (%rdx), %ymm7, %ymm7;
1022 vpxor (%rax), %ymm7, %ymm7;
1023 vpxor (0 * 32 + 16)(%rdx), %ymm6, %ymm6;
1024 vpxor (1 * 32 + 16)(%rdx), %ymm5, %ymm5;
1025 vpxor (2 * 32 + 16)(%rdx), %ymm4, %ymm4;
1026 vpxor (3 * 32 + 16)(%rdx), %ymm3, %ymm3;
1027 vpxor (4 * 32 + 16)(%rdx), %ymm2, %ymm2;
1028 vpxor (5 * 32 + 16)(%rdx), %ymm1, %ymm1;
1029 vpxor (6 * 32 + 16)(%rdx), %ymm0, %ymm0;
1030 vpxor (7 * 32 + 16)(%rdx), %ymm15, %ymm15;
1031 vpxor (8 * 32 + 16)(%rdx), %ymm14, %ymm14;
1032 vpxor (9 * 32 + 16)(%rdx), %ymm13, %ymm13;
1033 vpxor (10 * 32 + 16)(%rdx), %ymm12, %ymm12;
1034 vpxor (11 * 32 + 16)(%rdx), %ymm11, %ymm11;
1035 vpxor (12 * 32 + 16)(%rdx), %ymm10, %ymm10;
1036 vpxor (13 * 32 + 16)(%rdx), %ymm9, %ymm9;
1037 vpxor (14 * 32 + 16)(%rdx), %ymm8, %ymm8;
1038 write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
1039 %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
1040 %ymm8, %rsi);
1041
1042 vzeroupper;
1043
1044 addq $(16 * 32), %rsp;
1045 FRAME_END
1046 RET;
1047SYM_FUNC_END(camellia_cbc_dec_32way)
1048

source code of linux/arch/x86/crypto/camellia-aesni-avx2-asm_64.S