arch/x86/crypto/camellia-aesni-avx-asm_64.S

   1 /*
   2  * x86_64/AVX/AES-NI assembler implementation of Camellia
   3  *
   4  * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12
  13 /*
  14  * Version licensed under 2-clause BSD License is available at:
  15  *      http://koti.mbnet.fi/axh/crypto/camellia-BSD-1.2.0-aesni1.tar.xz
  16  */
  17
  18 #include <linux/linkage.h>
  19 #include <asm/frame.h>
  20
  21 #define CAMELLIA_TABLE_BYTE_LEN 272
  22
  23 /* struct camellia_ctx: */
  24 #define key_table 0
  25 #define key_length CAMELLIA_TABLE_BYTE_LEN
  26
  27 /* register macros */
  28 #define CTX %rdi
  29
  30 /**********************************************************************
  31   16-way camellia
  32  **********************************************************************/
  33 #define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
  34         vpand x, mask4bit, tmp0; \
  35         vpandn x, mask4bit, x; \
  36         vpsrld $4, x, x; \
  37         \
  38         vpshufb tmp0, lo_t, tmp0; \
  39         vpshufb x, hi_t, x; \
  40         vpxor tmp0, x, x;
  41
  42 /*
  43  * IN:
  44  *   x0..x7: byte-sliced AB state
  45  *   mem_cd: register pointer storing CD state
  46  *   key: index for key material
  47  * OUT:
  48  *   x0..x7: new byte-sliced CD state
  49  */
  50 #define roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \
  51                   t7, mem_cd, key) \
  52         /* \
  53          * S-function with AES subbytes \
  54          */ \
  55         vmovdqa .Linv_shift_row, t4; \
  56         vbroadcastss .L0f0f0f0f, t7; \
  57         vmovdqa .Lpre_tf_lo_s1, t0; \
  58         vmovdqa .Lpre_tf_hi_s1, t1; \
  59         \
  60         /* AES inverse shift rows */ \
  61         vpshufb t4, x0, x0; \
  62         vpshufb t4, x7, x7; \
  63         vpshufb t4, x1, x1; \
  64         vpshufb t4, x4, x4; \
  65         vpshufb t4, x2, x2; \
  66         vpshufb t4, x5, x5; \
  67         vpshufb t4, x3, x3; \
  68         vpshufb t4, x6, x6; \
  69         \
  70         /* prefilter sboxes 1, 2 and 3 */ \
  71         vmovdqa .Lpre_tf_lo_s4, t2; \
  72         vmovdqa .Lpre_tf_hi_s4, t3; \
  73         filter_8bit(x0, t0, t1, t7, t6); \
  74         filter_8bit(x7, t0, t1, t7, t6); \
  75         filter_8bit(x1, t0, t1, t7, t6); \
  76         filter_8bit(x4, t0, t1, t7, t6); \
  77         filter_8bit(x2, t0, t1, t7, t6); \
  78         filter_8bit(x5, t0, t1, t7, t6); \
  79         \
  80         /* prefilter sbox 4 */ \
  81         vpxor t4, t4, t4; \
  82         filter_8bit(x3, t2, t3, t7, t6); \
  83         filter_8bit(x6, t2, t3, t7, t6); \
  84         \
  85         /* AES subbytes + AES shift rows */ \
  86         vmovdqa .Lpost_tf_lo_s1, t0; \
  87         vmovdqa .Lpost_tf_hi_s1, t1; \
  88         vaesenclast t4, x0, x0; \
  89         vaesenclast t4, x7, x7; \
  90         vaesenclast t4, x1, x1; \
  91         vaesenclast t4, x4, x4; \
  92         vaesenclast t4, x2, x2; \
  93         vaesenclast t4, x5, x5; \
  94         vaesenclast t4, x3, x3; \
  95         vaesenclast t4, x6, x6; \
  96         \
  97         /* postfilter sboxes 1 and 4 */ \
  98         vmovdqa .Lpost_tf_lo_s3, t2; \
  99         vmovdqa .Lpost_tf_hi_s3, t3; \
 100         filter_8bit(x0, t0, t1, t7, t6); \
 101         filter_8bit(x7, t0, t1, t7, t6); \
 102         filter_8bit(x3, t0, t1, t7, t6); \
 103         filter_8bit(x6, t0, t1, t7, t6); \
 104         \
 105         /* postfilter sbox 3 */ \
 106         vmovdqa .Lpost_tf_lo_s2, t4; \
 107         vmovdqa .Lpost_tf_hi_s2, t5; \
 108         filter_8bit(x2, t2, t3, t7, t6); \
 109         filter_8bit(x5, t2, t3, t7, t6); \
 110         \
 111         vpxor t6, t6, t6; \
 112         vmovq key, t0; \
 113         \
 114         /* postfilter sbox 2 */ \
 115         filter_8bit(x1, t4, t5, t7, t2); \
 116         filter_8bit(x4, t4, t5, t7, t2); \
 117         \
 118         vpsrldq $5, t0, t5; \
 119         vpsrldq $1, t0, t1; \
 120         vpsrldq $2, t0, t2; \
 121         vpsrldq $3, t0, t3; \
 122         vpsrldq $4, t0, t4; \
 123         vpshufb t6, t0, t0; \
 124         vpshufb t6, t1, t1; \
 125         vpshufb t6, t2, t2; \
 126         vpshufb t6, t3, t3; \
 127         vpshufb t6, t4, t4; \
 128         vpsrldq $2, t5, t7; \
 129         vpshufb t6, t7, t7; \
 130         \
 131         /* \
 132          * P-function \
 133          */ \
 134         vpxor x5, x0, x0; \
 135         vpxor x6, x1, x1; \
 136         vpxor x7, x2, x2; \
 137         vpxor x4, x3, x3; \
 138         \
 139         vpxor x2, x4, x4; \
 140         vpxor x3, x5, x5; \
 141         vpxor x0, x6, x6; \
 142         vpxor x1, x7, x7; \
 143         \
 144         vpxor x7, x0, x0; \
 145         vpxor x4, x1, x1; \
 146         vpxor x5, x2, x2; \
 147         vpxor x6, x3, x3; \
 148         \
 149         vpxor x3, x4, x4; \
 150         vpxor x0, x5, x5; \
 151         vpxor x1, x6, x6; \
 152         vpxor x2, x7, x7; /* note: high and low parts swapped */ \
 153         \
 154         /* \
 155          * Add key material and result to CD (x becomes new CD) \
 156          */ \
 157         \
 158         vpxor t3, x4, x4; \
 159         vpxor 0 * 16(mem_cd), x4, x4; \
 160         \
 161         vpxor t2, x5, x5; \
 162         vpxor 1 * 16(mem_cd), x5, x5; \
 163         \
 164         vpsrldq $1, t5, t3; \
 165         vpshufb t6, t5, t5; \
 166         vpshufb t6, t3, t6; \
 167         \
 168         vpxor t1, x6, x6; \
 169         vpxor 2 * 16(mem_cd), x6, x6; \
 170         \
 171         vpxor t0, x7, x7; \
 172         vpxor 3 * 16(mem_cd), x7, x7; \
 173         \
 174         vpxor t7, x0, x0; \
 175         vpxor 4 * 16(mem_cd), x0, x0; \
 176         \
 177         vpxor t6, x1, x1; \
 178         vpxor 5 * 16(mem_cd), x1, x1; \
 179         \
 180         vpxor t5, x2, x2; \
 181         vpxor 6 * 16(mem_cd), x2, x2; \
 182         \
 183         vpxor t4, x3, x3; \
 184         vpxor 7 * 16(mem_cd), x3, x3;
 185
 186 /*
 187  * Size optimization... with inlined roundsm16, binary would be over 5 times
 188  * larger and would only be 0.5% faster (on sandy-bridge).
 189  */
 190 .align 8
 191 roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
 192         roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 193                   %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
 194                   %rcx, (%r9));
 195         ret;
 196 ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
 197
 198 .align 8
 199 roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
 200         roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
 201                   %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
 202                   %rax, (%r9));
 203         ret;
 204 ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
 205
 206 /*
 207  * IN/OUT:
 208  *  x0..x7: byte-sliced AB state preloaded
 209  *  mem_ab: byte-sliced AB state in memory
 210  *  mem_cb: byte-sliced CD state in memory
 211  */
 212 #define two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 213                       y6, y7, mem_ab, mem_cd, i, dir, store_ab) \
 214         leaq (key_table + (i) * 8)(CTX), %r9; \
 215         call roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \
 216         \
 217         vmovdqu x4, 0 * 16(mem_cd); \
 218         vmovdqu x5, 1 * 16(mem_cd); \
 219         vmovdqu x6, 2 * 16(mem_cd); \
 220         vmovdqu x7, 3 * 16(mem_cd); \
 221         vmovdqu x0, 4 * 16(mem_cd); \
 222         vmovdqu x1, 5 * 16(mem_cd); \
 223         vmovdqu x2, 6 * 16(mem_cd); \
 224         vmovdqu x3, 7 * 16(mem_cd); \
 225         \
 226         leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \
 227         call roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \
 228         \
 229         store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab);
 230
 231 #define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */
 232
 233 #define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \
 234         /* Store new AB state */ \
 235         vmovdqu x0, 0 * 16(mem_ab); \
 236         vmovdqu x1, 1 * 16(mem_ab); \
 237         vmovdqu x2, 2 * 16(mem_ab); \
 238         vmovdqu x3, 3 * 16(mem_ab); \
 239         vmovdqu x4, 4 * 16(mem_ab); \
 240         vmovdqu x5, 5 * 16(mem_ab); \
 241         vmovdqu x6, 6 * 16(mem_ab); \
 242         vmovdqu x7, 7 * 16(mem_ab);
 243
 244 #define enc_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 245                       y6, y7, mem_ab, mem_cd, i) \
 246         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 247                       y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \
 248         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 249                       y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \
 250         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 251                       y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store);
 252
 253 #define dec_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 254                       y6, y7, mem_ab, mem_cd, i) \
 255         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 256                       y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \
 257         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 258                       y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \
 259         two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 260                       y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store);
 261
 262 /*
 263  * IN:
 264  *  v0..3: byte-sliced 32-bit integers
 265  * OUT:
 266  *  v0..3: (IN <<< 1)
 267  */
 268 #define rol32_1_16(v0, v1, v2, v3, t0, t1, t2, zero) \
 269         vpcmpgtb v0, zero, t0; \
 270         vpaddb v0, v0, v0; \
 271         vpabsb t0, t0; \
 272         \
 273         vpcmpgtb v1, zero, t1; \
 274         vpaddb v1, v1, v1; \
 275         vpabsb t1, t1; \
 276         \
 277         vpcmpgtb v2, zero, t2; \
 278         vpaddb v2, v2, v2; \
 279         vpabsb t2, t2; \
 280         \
 281         vpor t0, v1, v1; \
 282         \
 283         vpcmpgtb v3, zero, t0; \
 284         vpaddb v3, v3, v3; \
 285         vpabsb t0, t0; \
 286         \
 287         vpor t1, v2, v2; \
 288         vpor t2, v3, v3; \
 289         vpor t0, v0, v0;
 290
 291 /*
 292  * IN:
 293  *   r: byte-sliced AB state in memory
 294  *   l: byte-sliced CD state in memory
 295  * OUT:
 296  *   x0..x7: new byte-sliced CD state
 297  */
 298 #define fls16(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \
 299               tt1, tt2, tt3, kll, klr, krl, krr) \
 300         /* \
 301          * t0 = kll; \
 302          * t0 &= ll; \
 303          * lr ^= rol32(t0, 1); \
 304          */ \
 305         vpxor tt0, tt0, tt0; \
 306         vmovd kll, t0; \
 307         vpshufb tt0, t0, t3; \
 308         vpsrldq $1, t0, t0; \
 309         vpshufb tt0, t0, t2; \
 310         vpsrldq $1, t0, t0; \
 311         vpshufb tt0, t0, t1; \
 312         vpsrldq $1, t0, t0; \
 313         vpshufb tt0, t0, t0; \
 314         \
 315         vpand l0, t0, t0; \
 316         vpand l1, t1, t1; \
 317         vpand l2, t2, t2; \
 318         vpand l3, t3, t3; \
 319         \
 320         rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
 321         \
 322         vpxor l4, t0, l4; \
 323         vmovdqu l4, 4 * 16(l); \
 324         vpxor l5, t1, l5; \
 325         vmovdqu l5, 5 * 16(l); \
 326         vpxor l6, t2, l6; \
 327         vmovdqu l6, 6 * 16(l); \
 328         vpxor l7, t3, l7; \
 329         vmovdqu l7, 7 * 16(l); \
 330         \
 331         /* \
 332          * t2 = krr; \
 333          * t2 |= rr; \
 334          * rl ^= t2; \
 335          */ \
 336         \
 337         vmovd krr, t0; \
 338         vpshufb tt0, t0, t3; \
 339         vpsrldq $1, t0, t0; \
 340         vpshufb tt0, t0, t2; \
 341         vpsrldq $1, t0, t0; \
 342         vpshufb tt0, t0, t1; \
 343         vpsrldq $1, t0, t0; \
 344         vpshufb tt0, t0, t0; \
 345         \
 346         vpor 4 * 16(r), t0, t0; \
 347         vpor 5 * 16(r), t1, t1; \
 348         vpor 6 * 16(r), t2, t2; \
 349         vpor 7 * 16(r), t3, t3; \
 350         \
 351         vpxor 0 * 16(r), t0, t0; \
 352         vpxor 1 * 16(r), t1, t1; \
 353         vpxor 2 * 16(r), t2, t2; \
 354         vpxor 3 * 16(r), t3, t3; \
 355         vmovdqu t0, 0 * 16(r); \
 356         vmovdqu t1, 1 * 16(r); \
 357         vmovdqu t2, 2 * 16(r); \
 358         vmovdqu t3, 3 * 16(r); \
 359         \
 360         /* \
 361          * t2 = krl; \
 362          * t2 &= rl; \
 363          * rr ^= rol32(t2, 1); \
 364          */ \
 365         vmovd krl, t0; \
 366         vpshufb tt0, t0, t3; \
 367         vpsrldq $1, t0, t0; \
 368         vpshufb tt0, t0, t2; \
 369         vpsrldq $1, t0, t0; \
 370         vpshufb tt0, t0, t1; \
 371         vpsrldq $1, t0, t0; \
 372         vpshufb tt0, t0, t0; \
 373         \
 374         vpand 0 * 16(r), t0, t0; \
 375         vpand 1 * 16(r), t1, t1; \
 376         vpand 2 * 16(r), t2, t2; \
 377         vpand 3 * 16(r), t3, t3; \
 378         \
 379         rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
 380         \
 381         vpxor 4 * 16(r), t0, t0; \
 382         vpxor 5 * 16(r), t1, t1; \
 383         vpxor 6 * 16(r), t2, t2; \
 384         vpxor 7 * 16(r), t3, t3; \
 385         vmovdqu t0, 4 * 16(r); \
 386         vmovdqu t1, 5 * 16(r); \
 387         vmovdqu t2, 6 * 16(r); \
 388         vmovdqu t3, 7 * 16(r); \
 389         \
 390         /* \
 391          * t0 = klr; \
 392          * t0 |= lr; \
 393          * ll ^= t0; \
 394          */ \
 395         \
 396         vmovd klr, t0; \
 397         vpshufb tt0, t0, t3; \
 398         vpsrldq $1, t0, t0; \
 399         vpshufb tt0, t0, t2; \
 400         vpsrldq $1, t0, t0; \
 401         vpshufb tt0, t0, t1; \
 402         vpsrldq $1, t0, t0; \
 403         vpshufb tt0, t0, t0; \
 404         \
 405         vpor l4, t0, t0; \
 406         vpor l5, t1, t1; \
 407         vpor l6, t2, t2; \
 408         vpor l7, t3, t3; \
 409         \
 410         vpxor l0, t0, l0; \
 411         vmovdqu l0, 0 * 16(l); \
 412         vpxor l1, t1, l1; \
 413         vmovdqu l1, 1 * 16(l); \
 414         vpxor l2, t2, l2; \
 415         vmovdqu l2, 2 * 16(l); \
 416         vpxor l3, t3, l3; \
 417         vmovdqu l3, 3 * 16(l);
 418
 419 #define transpose_4x4(x0, x1, x2, x3, t1, t2) \
 420         vpunpckhdq x1, x0, t2; \
 421         vpunpckldq x1, x0, x0; \
 422         \
 423         vpunpckldq x3, x2, t1; \
 424         vpunpckhdq x3, x2, x2; \
 425         \
 426         vpunpckhqdq t1, x0, x1; \
 427         vpunpcklqdq t1, x0, x0; \
 428         \
 429         vpunpckhqdq x2, t2, x3; \
 430         vpunpcklqdq x2, t2, x2;
 431
 432 #define byteslice_16x16b(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, a3, \
 433                          b3, c3, d3, st0, st1) \
 434         vmovdqu d2, st0; \
 435         vmovdqu d3, st1; \
 436         transpose_4x4(a0, a1, a2, a3, d2, d3); \
 437         transpose_4x4(b0, b1, b2, b3, d2, d3); \
 438         vmovdqu st0, d2; \
 439         vmovdqu st1, d3; \
 440         \
 441         vmovdqu a0, st0; \
 442         vmovdqu a1, st1; \
 443         transpose_4x4(c0, c1, c2, c3, a0, a1); \
 444         transpose_4x4(d0, d1, d2, d3, a0, a1); \
 445         \
 446         vmovdqu .Lshufb_16x16b, a0; \
 447         vmovdqu st1, a1; \
 448         vpshufb a0, a2, a2; \
 449         vpshufb a0, a3, a3; \
 450         vpshufb a0, b0, b0; \
 451         vpshufb a0, b1, b1; \
 452         vpshufb a0, b2, b2; \
 453         vpshufb a0, b3, b3; \
 454         vpshufb a0, a1, a1; \
 455         vpshufb a0, c0, c0; \
 456         vpshufb a0, c1, c1; \
 457         vpshufb a0, c2, c2; \
 458         vpshufb a0, c3, c3; \
 459         vpshufb a0, d0, d0; \
 460         vpshufb a0, d1, d1; \
 461         vpshufb a0, d2, d2; \
 462         vpshufb a0, d3, d3; \
 463         vmovdqu d3, st1; \
 464         vmovdqu st0, d3; \
 465         vpshufb a0, d3, a0; \
 466         vmovdqu d2, st0; \
 467         \
 468         transpose_4x4(a0, b0, c0, d0, d2, d3); \
 469         transpose_4x4(a1, b1, c1, d1, d2, d3); \
 470         vmovdqu st0, d2; \
 471         vmovdqu st1, d3; \
 472         \
 473         vmovdqu b0, st0; \
 474         vmovdqu b1, st1; \
 475         transpose_4x4(a2, b2, c2, d2, b0, b1); \
 476         transpose_4x4(a3, b3, c3, d3, b0, b1); \
 477         vmovdqu st0, b0; \
 478         vmovdqu st1, b1; \
 479         /* does not adjust output bytes inside vectors */
 480
 481 /* load blocks to registers and apply pre-whitening */
 482 #define inpack16_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 483                      y6, y7, rio, key) \
 484         vmovq key, x0; \
 485         vpshufb .Lpack_bswap, x0, x0; \
 486         \
 487         vpxor 0 * 16(rio), x0, y7; \
 488         vpxor 1 * 16(rio), x0, y6; \
 489         vpxor 2 * 16(rio), x0, y5; \
 490         vpxor 3 * 16(rio), x0, y4; \
 491         vpxor 4 * 16(rio), x0, y3; \
 492         vpxor 5 * 16(rio), x0, y2; \
 493         vpxor 6 * 16(rio), x0, y1; \
 494         vpxor 7 * 16(rio), x0, y0; \
 495         vpxor 8 * 16(rio), x0, x7; \
 496         vpxor 9 * 16(rio), x0, x6; \
 497         vpxor 10 * 16(rio), x0, x5; \
 498         vpxor 11 * 16(rio), x0, x4; \
 499         vpxor 12 * 16(rio), x0, x3; \
 500         vpxor 13 * 16(rio), x0, x2; \
 501         vpxor 14 * 16(rio), x0, x1; \
 502         vpxor 15 * 16(rio), x0, x0;
 503
 504 /* byteslice pre-whitened blocks and store to temporary memory */
 505 #define inpack16_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 506                       y6, y7, mem_ab, mem_cd) \
 507         byteslice_16x16b(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
 508                          y5, y6, y7, (mem_ab), (mem_cd)); \
 509         \
 510         vmovdqu x0, 0 * 16(mem_ab); \
 511         vmovdqu x1, 1 * 16(mem_ab); \
 512         vmovdqu x2, 2 * 16(mem_ab); \
 513         vmovdqu x3, 3 * 16(mem_ab); \
 514         vmovdqu x4, 4 * 16(mem_ab); \
 515         vmovdqu x5, 5 * 16(mem_ab); \
 516         vmovdqu x6, 6 * 16(mem_ab); \
 517         vmovdqu x7, 7 * 16(mem_ab); \
 518         vmovdqu y0, 0 * 16(mem_cd); \
 519         vmovdqu y1, 1 * 16(mem_cd); \
 520         vmovdqu y2, 2 * 16(mem_cd); \
 521         vmovdqu y3, 3 * 16(mem_cd); \
 522         vmovdqu y4, 4 * 16(mem_cd); \
 523         vmovdqu y5, 5 * 16(mem_cd); \
 524         vmovdqu y6, 6 * 16(mem_cd); \
 525         vmovdqu y7, 7 * 16(mem_cd);
 526
 527 /* de-byteslice, apply post-whitening and store blocks */
 528 #define outunpack16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
 529                     y5, y6, y7, key, stack_tmp0, stack_tmp1) \
 530         byteslice_16x16b(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, y3, \
 531                          y7, x3, x7, stack_tmp0, stack_tmp1); \
 532         \
 533         vmovdqu x0, stack_tmp0; \
 534         \
 535         vmovq key, x0; \
 536         vpshufb .Lpack_bswap, x0, x0; \
 537         \
 538         vpxor x0, y7, y7; \
 539         vpxor x0, y6, y6; \
 540         vpxor x0, y5, y5; \
 541         vpxor x0, y4, y4; \
 542         vpxor x0, y3, y3; \
 543         vpxor x0, y2, y2; \
 544         vpxor x0, y1, y1; \
 545         vpxor x0, y0, y0; \
 546         vpxor x0, x7, x7; \
 547         vpxor x0, x6, x6; \
 548         vpxor x0, x5, x5; \
 549         vpxor x0, x4, x4; \
 550         vpxor x0, x3, x3; \
 551         vpxor x0, x2, x2; \
 552         vpxor x0, x1, x1; \
 553         vpxor stack_tmp0, x0, x0;
 554
 555 #define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
 556                      y6, y7, rio) \
 557         vmovdqu x0, 0 * 16(rio); \
 558         vmovdqu x1, 1 * 16(rio); \
 559         vmovdqu x2, 2 * 16(rio); \
 560         vmovdqu x3, 3 * 16(rio); \
 561         vmovdqu x4, 4 * 16(rio); \
 562         vmovdqu x5, 5 * 16(rio); \
 563         vmovdqu x6, 6 * 16(rio); \
 564         vmovdqu x7, 7 * 16(rio); \
 565         vmovdqu y0, 8 * 16(rio); \
 566         vmovdqu y1, 9 * 16(rio); \
 567         vmovdqu y2, 10 * 16(rio); \
 568         vmovdqu y3, 11 * 16(rio); \
 569         vmovdqu y4, 12 * 16(rio); \
 570         vmovdqu y5, 13 * 16(rio); \
 571         vmovdqu y6, 14 * 16(rio); \
 572         vmovdqu y7, 15 * 16(rio);
 573
 574 .data
 575 .align 16
 576
 577 #define SHUFB_BYTES(idx) \
 578         0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
 579
 580 .Lshufb_16x16b:
 581         .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3);
 582
 583 .Lpack_bswap:
 584         .long 0x00010203
 585         .long 0x04050607
 586         .long 0x80808080
 587         .long 0x80808080
 588
 589 /* For CTR-mode IV byteswap */
 590 .Lbswap128_mask:
 591         .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
 592
 593 /* For XTS mode IV generation */
 594 .Lxts_gf128mul_and_shl1_mask:
 595         .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0
 596
 597 /*
 598  * pre-SubByte transform
 599  *
 600  * pre-lookup for sbox1, sbox2, sbox3:
 601  *   swap_bitendianness(
 602  *       isom_map_camellia_to_aes(
 603  *           camellia_f(
 604  *               swap_bitendianess(in)
 605  *           )
 606  *       )
 607  *   )
 608  *
 609  * (note: '⊕ 0xc5' inside camellia_f())
 610  */
 611 .Lpre_tf_lo_s1:
 612         .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86
 613         .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88
 614 .Lpre_tf_hi_s1:
 615         .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a
 616         .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23
 617
 618 /*
 619  * pre-SubByte transform
 620  *
 621  * pre-lookup for sbox4:
 622  *   swap_bitendianness(
 623  *       isom_map_camellia_to_aes(
 624  *           camellia_f(
 625  *               swap_bitendianess(in <<< 1)
 626  *           )
 627  *       )
 628  *   )
 629  *
 630  * (note: '⊕ 0xc5' inside camellia_f())
 631  */
 632 .Lpre_tf_lo_s4:
 633         .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25
 634         .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74
 635 .Lpre_tf_hi_s4:
 636         .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72
 637         .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf
 638
 639 /*
 640  * post-SubByte transform
 641  *
 642  * post-lookup for sbox1, sbox4:
 643  *  swap_bitendianness(
 644  *      camellia_h(
 645  *          isom_map_aes_to_camellia(
 646  *              swap_bitendianness(
 647  *                  aes_inverse_affine_transform(in)
 648  *              )
 649  *          )
 650  *      )
 651  *  )
 652  *
 653  * (note: '⊕ 0x6e' inside camellia_h())
 654  */
 655 .Lpost_tf_lo_s1:
 656         .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31
 657         .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1
 658 .Lpost_tf_hi_s1:
 659         .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8
 660         .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c
 661
 662 /*
 663  * post-SubByte transform
 664  *
 665  * post-lookup for sbox2:
 666  *  swap_bitendianness(
 667  *      camellia_h(
 668  *          isom_map_aes_to_camellia(
 669  *              swap_bitendianness(
 670  *                  aes_inverse_affine_transform(in)
 671  *              )
 672  *          )
 673  *      )
 674  *  ) <<< 1
 675  *
 676  * (note: '⊕ 0x6e' inside camellia_h())
 677  */
 678 .Lpost_tf_lo_s2:
 679         .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62
 680         .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3
 681 .Lpost_tf_hi_s2:
 682         .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51
 683         .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18
 684
 685 /*
 686  * post-SubByte transform
 687  *
 688  * post-lookup for sbox3:
 689  *  swap_bitendianness(
 690  *      camellia_h(
 691  *          isom_map_aes_to_camellia(
 692  *              swap_bitendianness(
 693  *                  aes_inverse_affine_transform(in)
 694  *              )
 695  *          )
 696  *      )
 697  *  ) >>> 1
 698  *
 699  * (note: '⊕ 0x6e' inside camellia_h())
 700  */
 701 .Lpost_tf_lo_s3:
 702         .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98
 703         .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8
 704 .Lpost_tf_hi_s3:
 705         .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54
 706         .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06
 707
 708 /* For isolating SubBytes from AESENCLAST, inverse shift row */
 709 .Linv_shift_row:
 710         .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
 711         .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
 712
 713 /* 4-bit mask */
 714 .align 4
 715 .L0f0f0f0f:
 716         .long 0x0f0f0f0f
 717
 718 .text
 719
 720 .align 8
 721 __camellia_enc_blk16:
 722         /* input:
 723          *      %rdi: ctx, CTX
 724          *      %rax: temporary storage, 256 bytes
 725          *      %xmm0..%xmm15: 16 plaintext blocks
 726          * output:
 727          *      %xmm0..%xmm15: 16 encrypted blocks, order swapped:
 728          *       7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
 729          */
 730         FRAME_BEGIN
 731
 732         leaq 8 * 16(%rax), %rcx;
 733
 734         inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 735                       %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 736                       %xmm15, %rax, %rcx);
 737
 738         enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 739                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 740                      %xmm15, %rax, %rcx, 0);
 741
 742         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 743               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 744               %xmm15,
 745               ((key_table + (8) * 8) + 0)(CTX),
 746               ((key_table + (8) * 8) + 4)(CTX),
 747               ((key_table + (8) * 8) + 8)(CTX),
 748               ((key_table + (8) * 8) + 12)(CTX));
 749
 750         enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 751                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 752                      %xmm15, %rax, %rcx, 8);
 753
 754         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 755               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 756               %xmm15,
 757               ((key_table + (16) * 8) + 0)(CTX),
 758               ((key_table + (16) * 8) + 4)(CTX),
 759               ((key_table + (16) * 8) + 8)(CTX),
 760               ((key_table + (16) * 8) + 12)(CTX));
 761
 762         enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 763                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 764                      %xmm15, %rax, %rcx, 16);
 765
 766         movl $24, %r8d;
 767         cmpl $16, key_length(CTX);
 768         jne .Lenc_max32;
 769
 770 .Lenc_done:
 771         /* load CD for output */
 772         vmovdqu 0 * 16(%rcx), %xmm8;
 773         vmovdqu 1 * 16(%rcx), %xmm9;
 774         vmovdqu 2 * 16(%rcx), %xmm10;
 775         vmovdqu 3 * 16(%rcx), %xmm11;
 776         vmovdqu 4 * 16(%rcx), %xmm12;
 777         vmovdqu 5 * 16(%rcx), %xmm13;
 778         vmovdqu 6 * 16(%rcx), %xmm14;
 779         vmovdqu 7 * 16(%rcx), %xmm15;
 780
 781         outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 782                     %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 783                     %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
 784
 785         FRAME_END
 786         ret;
 787
 788 .align 8
 789 .Lenc_max32:
 790         movl $32, %r8d;
 791
 792         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 793               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 794               %xmm15,
 795               ((key_table + (24) * 8) + 0)(CTX),
 796               ((key_table + (24) * 8) + 4)(CTX),
 797               ((key_table + (24) * 8) + 8)(CTX),
 798               ((key_table + (24) * 8) + 12)(CTX));
 799
 800         enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 801                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 802                      %xmm15, %rax, %rcx, 24);
 803
 804         jmp .Lenc_done;
 805 ENDPROC(__camellia_enc_blk16)
 806
 807 .align 8
 808 __camellia_dec_blk16:
 809         /* input:
 810          *      %rdi: ctx, CTX
 811          *      %rax: temporary storage, 256 bytes
 812          *      %r8d: 24 for 16 byte key, 32 for larger
 813          *      %xmm0..%xmm15: 16 encrypted blocks
 814          * output:
 815          *      %xmm0..%xmm15: 16 plaintext blocks, order swapped:
 816          *       7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
 817          */
 818         FRAME_BEGIN
 819
 820         leaq 8 * 16(%rax), %rcx;
 821
 822         inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 823                       %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 824                       %xmm15, %rax, %rcx);
 825
 826         cmpl $32, %r8d;
 827         je .Ldec_max32;
 828
 829 .Ldec_max24:
 830         dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 831                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 832                      %xmm15, %rax, %rcx, 16);
 833
 834         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 835               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 836               %xmm15,
 837               ((key_table + (16) * 8) + 8)(CTX),
 838               ((key_table + (16) * 8) + 12)(CTX),
 839               ((key_table + (16) * 8) + 0)(CTX),
 840               ((key_table + (16) * 8) + 4)(CTX));
 841
 842         dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 843                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 844                      %xmm15, %rax, %rcx, 8);
 845
 846         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 847               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 848               %xmm15,
 849               ((key_table + (8) * 8) + 8)(CTX),
 850               ((key_table + (8) * 8) + 12)(CTX),
 851               ((key_table + (8) * 8) + 0)(CTX),
 852               ((key_table + (8) * 8) + 4)(CTX));
 853
 854         dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 855                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 856                      %xmm15, %rax, %rcx, 0);
 857
 858         /* load CD for output */
 859         vmovdqu 0 * 16(%rcx), %xmm8;
 860         vmovdqu 1 * 16(%rcx), %xmm9;
 861         vmovdqu 2 * 16(%rcx), %xmm10;
 862         vmovdqu 3 * 16(%rcx), %xmm11;
 863         vmovdqu 4 * 16(%rcx), %xmm12;
 864         vmovdqu 5 * 16(%rcx), %xmm13;
 865         vmovdqu 6 * 16(%rcx), %xmm14;
 866         vmovdqu 7 * 16(%rcx), %xmm15;
 867
 868         outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 869                     %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 870                     %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
 871
 872         FRAME_END
 873         ret;
 874
 875 .align 8
 876 .Ldec_max32:
 877         dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 878                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 879                      %xmm15, %rax, %rcx, 24);
 880
 881         fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 882               %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 883               %xmm15,
 884               ((key_table + (24) * 8) + 8)(CTX),
 885               ((key_table + (24) * 8) + 12)(CTX),
 886               ((key_table + (24) * 8) + 0)(CTX),
 887               ((key_table + (24) * 8) + 4)(CTX));
 888
 889         jmp .Ldec_max24;
 890 ENDPROC(__camellia_dec_blk16)
 891
 892 ENTRY(camellia_ecb_enc_16way)
 893         /* input:
 894          *      %rdi: ctx, CTX
 895          *      %rsi: dst (16 blocks)
 896          *      %rdx: src (16 blocks)
 897          */
 898          FRAME_BEGIN
 899
 900         inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 901                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 902                      %xmm15, %rdx, (key_table)(CTX));
 903
 904         /* now dst can be used as temporary buffer (even in src == dst case) */
 905         movq    %rsi, %rax;
 906
 907         call __camellia_enc_blk16;
 908
 909         write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
 910                      %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
 911                      %xmm8, %rsi);
 912
 913         FRAME_END
 914         ret;
 915 ENDPROC(camellia_ecb_enc_16way)
 916
 917 ENTRY(camellia_ecb_dec_16way)
 918         /* input:
 919          *      %rdi: ctx, CTX
 920          *      %rsi: dst (16 blocks)
 921          *      %rdx: src (16 blocks)
 922          */
 923          FRAME_BEGIN
 924
 925         cmpl $16, key_length(CTX);
 926         movl $32, %r8d;
 927         movl $24, %eax;
 928         cmovel %eax, %r8d; /* max */
 929
 930         inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 931                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 932                      %xmm15, %rdx, (key_table)(CTX, %r8, 8));
 933
 934         /* now dst can be used as temporary buffer (even in src == dst case) */
 935         movq    %rsi, %rax;
 936
 937         call __camellia_dec_blk16;
 938
 939         write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
 940                      %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
 941                      %xmm8, %rsi);
 942
 943         FRAME_END
 944         ret;
 945 ENDPROC(camellia_ecb_dec_16way)
 946
 947 ENTRY(camellia_cbc_dec_16way)
 948         /* input:
 949          *      %rdi: ctx, CTX
 950          *      %rsi: dst (16 blocks)
 951          *      %rdx: src (16 blocks)
 952          */
 953         FRAME_BEGIN
 954
 955         cmpl $16, key_length(CTX);
 956         movl $32, %r8d;
 957         movl $24, %eax;
 958         cmovel %eax, %r8d; /* max */
 959
 960         inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
 961                      %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
 962                      %xmm15, %rdx, (key_table)(CTX, %r8, 8));
 963
 964         /*
 965          * dst might still be in-use (in case dst == src), so use stack for
 966          * temporary storage.
 967          */
 968         subq $(16 * 16), %rsp;
 969         movq %rsp, %rax;
 970
 971         call __camellia_dec_blk16;
 972
 973         addq $(16 * 16), %rsp;
 974
 975         vpxor (0 * 16)(%rdx), %xmm6, %xmm6;
 976         vpxor (1 * 16)(%rdx), %xmm5, %xmm5;
 977         vpxor (2 * 16)(%rdx), %xmm4, %xmm4;
 978         vpxor (3 * 16)(%rdx), %xmm3, %xmm3;
 979         vpxor (4 * 16)(%rdx), %xmm2, %xmm2;
 980         vpxor (5 * 16)(%rdx), %xmm1, %xmm1;
 981         vpxor (6 * 16)(%rdx), %xmm0, %xmm0;
 982         vpxor (7 * 16)(%rdx), %xmm15, %xmm15;
 983         vpxor (8 * 16)(%rdx), %xmm14, %xmm14;
 984         vpxor (9 * 16)(%rdx), %xmm13, %xmm13;
 985         vpxor (10 * 16)(%rdx), %xmm12, %xmm12;
 986         vpxor (11 * 16)(%rdx), %xmm11, %xmm11;
 987         vpxor (12 * 16)(%rdx), %xmm10, %xmm10;
 988         vpxor (13 * 16)(%rdx), %xmm9, %xmm9;
 989         vpxor (14 * 16)(%rdx), %xmm8, %xmm8;
 990         write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
 991                      %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
 992                      %xmm8, %rsi);
 993
 994         FRAME_END
 995         ret;
 996 ENDPROC(camellia_cbc_dec_16way)
 997
 998 #define inc_le128(x, minus_one, tmp) \
 999         vpcmpeqq minus_one, x, tmp; \
1000         vpsubq minus_one, x, x; \
1001         vpslldq $8, tmp, tmp; \
1002         vpsubq tmp, x, x;
1003
1004 ENTRY(camellia_ctr_16way)
1005         /* input:
1006          *      %rdi: ctx, CTX
1007          *      %rsi: dst (16 blocks)
1008          *      %rdx: src (16 blocks)
1009          *      %rcx: iv (little endian, 128bit)
1010          */
1011         FRAME_BEGIN
1012
1013         subq $(16 * 16), %rsp;
1014         movq %rsp, %rax;
1015
1016         vmovdqa .Lbswap128_mask, %xmm14;
1017
1018         /* load IV and byteswap */
1019         vmovdqu (%rcx), %xmm0;
1020         vpshufb %xmm14, %xmm0, %xmm15;
1021         vmovdqu %xmm15, 15 * 16(%rax);
1022
1023         vpcmpeqd %xmm15, %xmm15, %xmm15;
1024         vpsrldq $8, %xmm15, %xmm15; /* low: -1, high: 0 */
1025
1026         /* construct IVs */
1027         inc_le128(%xmm0, %xmm15, %xmm13);
1028         vpshufb %xmm14, %xmm0, %xmm13;
1029         vmovdqu %xmm13, 14 * 16(%rax);
1030         inc_le128(%xmm0, %xmm15, %xmm13);
1031         vpshufb %xmm14, %xmm0, %xmm13;
1032         vmovdqu %xmm13, 13 * 16(%rax);
1033         inc_le128(%xmm0, %xmm15, %xmm13);
1034         vpshufb %xmm14, %xmm0, %xmm12;
1035         inc_le128(%xmm0, %xmm15, %xmm13);
1036         vpshufb %xmm14, %xmm0, %xmm11;
1037         inc_le128(%xmm0, %xmm15, %xmm13);
1038         vpshufb %xmm14, %xmm0, %xmm10;
1039         inc_le128(%xmm0, %xmm15, %xmm13);
1040         vpshufb %xmm14, %xmm0, %xmm9;
1041         inc_le128(%xmm0, %xmm15, %xmm13);
1042         vpshufb %xmm14, %xmm0, %xmm8;
1043         inc_le128(%xmm0, %xmm15, %xmm13);
1044         vpshufb %xmm14, %xmm0, %xmm7;
1045         inc_le128(%xmm0, %xmm15, %xmm13);
1046         vpshufb %xmm14, %xmm0, %xmm6;
1047         inc_le128(%xmm0, %xmm15, %xmm13);
1048         vpshufb %xmm14, %xmm0, %xmm5;
1049         inc_le128(%xmm0, %xmm15, %xmm13);
1050         vpshufb %xmm14, %xmm0, %xmm4;
1051         inc_le128(%xmm0, %xmm15, %xmm13);
1052         vpshufb %xmm14, %xmm0, %xmm3;
1053         inc_le128(%xmm0, %xmm15, %xmm13);
1054         vpshufb %xmm14, %xmm0, %xmm2;
1055         inc_le128(%xmm0, %xmm15, %xmm13);
1056         vpshufb %xmm14, %xmm0, %xmm1;
1057         inc_le128(%xmm0, %xmm15, %xmm13);
1058         vmovdqa %xmm0, %xmm13;
1059         vpshufb %xmm14, %xmm0, %xmm0;
1060         inc_le128(%xmm13, %xmm15, %xmm14);
1061         vmovdqu %xmm13, (%rcx);
1062
1063         /* inpack16_pre: */
1064         vmovq (key_table)(CTX), %xmm15;
1065         vpshufb .Lpack_bswap, %xmm15, %xmm15;
1066         vpxor %xmm0, %xmm15, %xmm0;
1067         vpxor %xmm1, %xmm15, %xmm1;
1068         vpxor %xmm2, %xmm15, %xmm2;
1069         vpxor %xmm3, %xmm15, %xmm3;
1070         vpxor %xmm4, %xmm15, %xmm4;
1071         vpxor %xmm5, %xmm15, %xmm5;
1072         vpxor %xmm6, %xmm15, %xmm6;
1073         vpxor %xmm7, %xmm15, %xmm7;
1074         vpxor %xmm8, %xmm15, %xmm8;
1075         vpxor %xmm9, %xmm15, %xmm9;
1076         vpxor %xmm10, %xmm15, %xmm10;
1077         vpxor %xmm11, %xmm15, %xmm11;
1078         vpxor %xmm12, %xmm15, %xmm12;
1079         vpxor 13 * 16(%rax), %xmm15, %xmm13;
1080         vpxor 14 * 16(%rax), %xmm15, %xmm14;
1081         vpxor 15 * 16(%rax), %xmm15, %xmm15;
1082
1083         call __camellia_enc_blk16;
1084
1085         addq $(16 * 16), %rsp;
1086
1087         vpxor 0 * 16(%rdx), %xmm7, %xmm7;
1088         vpxor 1 * 16(%rdx), %xmm6, %xmm6;
1089         vpxor 2 * 16(%rdx), %xmm5, %xmm5;
1090         vpxor 3 * 16(%rdx), %xmm4, %xmm4;
1091         vpxor 4 * 16(%rdx), %xmm3, %xmm3;
1092         vpxor 5 * 16(%rdx), %xmm2, %xmm2;
1093         vpxor 6 * 16(%rdx), %xmm1, %xmm1;
1094         vpxor 7 * 16(%rdx), %xmm0, %xmm0;
1095         vpxor 8 * 16(%rdx), %xmm15, %xmm15;
1096         vpxor 9 * 16(%rdx), %xmm14, %xmm14;
1097         vpxor 10 * 16(%rdx), %xmm13, %xmm13;
1098         vpxor 11 * 16(%rdx), %xmm12, %xmm12;
1099         vpxor 12 * 16(%rdx), %xmm11, %xmm11;
1100         vpxor 13 * 16(%rdx), %xmm10, %xmm10;
1101         vpxor 14 * 16(%rdx), %xmm9, %xmm9;
1102         vpxor 15 * 16(%rdx), %xmm8, %xmm8;
1103         write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
1104                      %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
1105                      %xmm8, %rsi);
1106
1107         FRAME_END
1108         ret;
1109 ENDPROC(camellia_ctr_16way)
1110
1111 #define gf128mul_x_ble(iv, mask, tmp) \
1112         vpsrad $31, iv, tmp; \
1113         vpaddq iv, iv, iv; \
1114         vpshufd $0x13, tmp, tmp; \
1115         vpand mask, tmp, tmp; \
1116         vpxor tmp, iv, iv;
1117
1118 .align 8
1119 camellia_xts_crypt_16way:
1120         /* input:
1121          *      %rdi: ctx, CTX
1122          *      %rsi: dst (16 blocks)
1123          *      %rdx: src (16 blocks)
1124          *      %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
1125          *      %r8: index for input whitening key
1126          *      %r9: pointer to  __camellia_enc_blk16 or __camellia_dec_blk16
1127          */
1128         FRAME_BEGIN
1129
1130         subq $(16 * 16), %rsp;
1131         movq %rsp, %rax;
1132
1133         vmovdqa .Lxts_gf128mul_and_shl1_mask, %xmm14;
1134
1135         /* load IV */
1136         vmovdqu (%rcx), %xmm0;
1137         vpxor 0 * 16(%rdx), %xmm0, %xmm15;
1138         vmovdqu %xmm15, 15 * 16(%rax);
1139         vmovdqu %xmm0, 0 * 16(%rsi);
1140
1141         /* construct IVs */
1142         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1143         vpxor 1 * 16(%rdx), %xmm0, %xmm15;
1144         vmovdqu %xmm15, 14 * 16(%rax);
1145         vmovdqu %xmm0, 1 * 16(%rsi);
1146
1147         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1148         vpxor 2 * 16(%rdx), %xmm0, %xmm13;
1149         vmovdqu %xmm0, 2 * 16(%rsi);
1150
1151         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1152         vpxor 3 * 16(%rdx), %xmm0, %xmm12;
1153         vmovdqu %xmm0, 3 * 16(%rsi);
1154
1155         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1156         vpxor 4 * 16(%rdx), %xmm0, %xmm11;
1157         vmovdqu %xmm0, 4 * 16(%rsi);
1158
1159         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1160         vpxor 5 * 16(%rdx), %xmm0, %xmm10;
1161         vmovdqu %xmm0, 5 * 16(%rsi);
1162
1163         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1164         vpxor 6 * 16(%rdx), %xmm0, %xmm9;
1165         vmovdqu %xmm0, 6 * 16(%rsi);
1166
1167         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1168         vpxor 7 * 16(%rdx), %xmm0, %xmm8;
1169         vmovdqu %xmm0, 7 * 16(%rsi);
1170
1171         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1172         vpxor 8 * 16(%rdx), %xmm0, %xmm7;
1173         vmovdqu %xmm0, 8 * 16(%rsi);
1174
1175         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1176         vpxor 9 * 16(%rdx), %xmm0, %xmm6;
1177         vmovdqu %xmm0, 9 * 16(%rsi);
1178
1179         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1180         vpxor 10 * 16(%rdx), %xmm0, %xmm5;
1181         vmovdqu %xmm0, 10 * 16(%rsi);
1182
1183         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1184         vpxor 11 * 16(%rdx), %xmm0, %xmm4;
1185         vmovdqu %xmm0, 11 * 16(%rsi);
1186
1187         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1188         vpxor 12 * 16(%rdx), %xmm0, %xmm3;
1189         vmovdqu %xmm0, 12 * 16(%rsi);
1190
1191         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1192         vpxor 13 * 16(%rdx), %xmm0, %xmm2;
1193         vmovdqu %xmm0, 13 * 16(%rsi);
1194
1195         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1196         vpxor 14 * 16(%rdx), %xmm0, %xmm1;
1197         vmovdqu %xmm0, 14 * 16(%rsi);
1198
1199         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1200         vpxor 15 * 16(%rdx), %xmm0, %xmm15;
1201         vmovdqu %xmm15, 0 * 16(%rax);
1202         vmovdqu %xmm0, 15 * 16(%rsi);
1203
1204         gf128mul_x_ble(%xmm0, %xmm14, %xmm15);
1205         vmovdqu %xmm0, (%rcx);
1206
1207         /* inpack16_pre: */
1208         vmovq (key_table)(CTX, %r8, 8), %xmm15;
1209         vpshufb .Lpack_bswap, %xmm15, %xmm15;
1210         vpxor 0 * 16(%rax), %xmm15, %xmm0;
1211         vpxor %xmm1, %xmm15, %xmm1;
1212         vpxor %xmm2, %xmm15, %xmm2;
1213         vpxor %xmm3, %xmm15, %xmm3;
1214         vpxor %xmm4, %xmm15, %xmm4;
1215         vpxor %xmm5, %xmm15, %xmm5;
1216         vpxor %xmm6, %xmm15, %xmm6;
1217         vpxor %xmm7, %xmm15, %xmm7;
1218         vpxor %xmm8, %xmm15, %xmm8;
1219         vpxor %xmm9, %xmm15, %xmm9;
1220         vpxor %xmm10, %xmm15, %xmm10;
1221         vpxor %xmm11, %xmm15, %xmm11;
1222         vpxor %xmm12, %xmm15, %xmm12;
1223         vpxor %xmm13, %xmm15, %xmm13;
1224         vpxor 14 * 16(%rax), %xmm15, %xmm14;
1225         vpxor 15 * 16(%rax), %xmm15, %xmm15;
1226
1227         call *%r9;
1228
1229         addq $(16 * 16), %rsp;
1230
1231         vpxor 0 * 16(%rsi), %xmm7, %xmm7;
1232         vpxor 1 * 16(%rsi), %xmm6, %xmm6;
1233         vpxor 2 * 16(%rsi), %xmm5, %xmm5;
1234         vpxor 3 * 16(%rsi), %xmm4, %xmm4;
1235         vpxor 4 * 16(%rsi), %xmm3, %xmm3;
1236         vpxor 5 * 16(%rsi), %xmm2, %xmm2;
1237         vpxor 6 * 16(%rsi), %xmm1, %xmm1;
1238         vpxor 7 * 16(%rsi), %xmm0, %xmm0;
1239         vpxor 8 * 16(%rsi), %xmm15, %xmm15;
1240         vpxor 9 * 16(%rsi), %xmm14, %xmm14;
1241         vpxor 10 * 16(%rsi), %xmm13, %xmm13;
1242         vpxor 11 * 16(%rsi), %xmm12, %xmm12;
1243         vpxor 12 * 16(%rsi), %xmm11, %xmm11;
1244         vpxor 13 * 16(%rsi), %xmm10, %xmm10;
1245         vpxor 14 * 16(%rsi), %xmm9, %xmm9;
1246         vpxor 15 * 16(%rsi), %xmm8, %xmm8;
1247         write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
1248                      %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
1249                      %xmm8, %rsi);
1250
1251         FRAME_END
1252         ret;
1253 ENDPROC(camellia_xts_crypt_16way)
1254
1255 ENTRY(camellia_xts_enc_16way)
1256         /* input:
1257          *      %rdi: ctx, CTX
1258          *      %rsi: dst (16 blocks)
1259          *      %rdx: src (16 blocks)
1260          *      %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
1261          */
1262         xorl %r8d, %r8d; /* input whitening key, 0 for enc */
1263
1264         leaq __camellia_enc_blk16, %r9;
1265
1266         jmp camellia_xts_crypt_16way;
1267 ENDPROC(camellia_xts_enc_16way)
1268
1269 ENTRY(camellia_xts_dec_16way)
1270         /* input:
1271          *      %rdi: ctx, CTX
1272          *      %rsi: dst (16 blocks)
1273          *      %rdx: src (16 blocks)
1274          *      %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
1275          */
1276
1277         cmpl $16, key_length(CTX);
1278         movl $32, %r8d;
1279         movl $24, %eax;
1280         cmovel %eax, %r8d;  /* input whitening key, last for dec */
1281
1282         leaq __camellia_dec_blk16, %r9;
1283
1284         jmp camellia_xts_crypt_16way;
1285 ENDPROC(camellia_xts_dec_16way)