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11#include <linux/linkage.h>
12#include <asm/frame.h>
13#include "glue_helper-asm-avx.S"
14
15.file "cast6-avx-x86_64-asm_64.S"
16
17.extern cast_s1
18.extern cast_s2
19.extern cast_s3
20.extern cast_s4
21
22
23#define km 0
24#define kr (12*4*4)
25
26
27#define s1 cast_s1
28#define s2 cast_s2
29#define s3 cast_s3
30#define s4 cast_s4
31
32
33
34
35#define CTX %r15
36
37#define RA1 %xmm0
38#define RB1 %xmm1
39#define RC1 %xmm2
40#define RD1 %xmm3
41
42#define RA2 %xmm4
43#define RB2 %xmm5
44#define RC2 %xmm6
45#define RD2 %xmm7
46
47#define RX %xmm8
48
49#define RKM %xmm9
50#define RKR %xmm10
51#define RKRF %xmm11
52#define RKRR %xmm12
53#define R32 %xmm13
54#define R1ST %xmm14
55
56#define RTMP %xmm15
57
58#define RID1 %rdi
59#define RID1d %edi
60#define RID2 %rsi
61#define RID2d %esi
62
63#define RGI1 %rdx
64#define RGI1bl %dl
65#define RGI1bh %dh
66#define RGI2 %rcx
67#define RGI2bl %cl
68#define RGI2bh %ch
69
70#define RGI3 %rax
71#define RGI3bl %al
72#define RGI3bh %ah
73#define RGI4 %rbx
74#define RGI4bl %bl
75#define RGI4bh %bh
76
77#define RFS1 %r8
78#define RFS1d %r8d
79#define RFS2 %r9
80#define RFS2d %r9d
81#define RFS3 %r10
82#define RFS3d %r10d
83
84
85#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \
86 movzbl src
87 movzbl src
88 shrq $16, src; \
89 movl s1(, RID1, 4), dst
90 op1 s2(, RID2, 4), dst
91 movzbl src
92 movzbl src
93 interleave_op(il_reg); \
94 op2 s3(, RID1, 4), dst
95 op3 s4(, RID2, 4), dst
96
97#define dummy(d)
98
99#define shr_next(reg) \
100 shrq $16, reg;
101
102#define F_head(a, x, gi1, gi2, op0) \
103 op0 a, RKM, x; \
104 vpslld RKRF, x, RTMP; \
105 vpsrld RKRR, x, x; \
106 vpor RTMP, x, x; \
107 \
108 vmovq x, gi1; \
109 vpextrq $1, x, gi2;
110
111#define F_tail(a, x, gi1, gi2, op1, op2, op3) \
112 lookup_32bit(
113 lookup_32bit(
114 \
115 lookup_32bit(
116 shlq $32, RFS2; \
117 orq RFS1, RFS2; \
118 lookup_32bit(
119 shlq $32, RFS1; \
120 orq RFS1, RFS3; \
121 \
122 vmovq RFS2, x; \
123 vpinsrq $1, RFS3, x, x;
124
125#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \
126 F_head(b1, RX, RGI1, RGI2, op0); \
127 F_head(b2, RX, RGI3, RGI4, op0); \
128 \
129 F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \
130 F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \
131 \
132 vpxor a1, RX, a1; \
133 vpxor a2, RTMP, a2;
134
135#define F1_2(a1, b1, a2, b2) \
136 F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl)
137#define F2_2(a1, b1, a2, b2) \
138 F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl)
139#define F3_2(a1, b1, a2, b2) \
140 F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl)
141
142#define qop(in, out, f) \
143 F
144
145#define get_round_keys(nn) \
146 vbroadcastss (km+(4*(nn)))(CTX), RKM; \
147 vpand R1ST, RKR, RKRF; \
148 vpsubq RKRF, R32, RKRR; \
149 vpsrldq $1, RKR, RKR;
150
151#define Q(n) \
152 get_round_keys(4*n+0); \
153 qop(RD, RC, 1); \
154 \
155 get_round_keys(4*n+1); \
156 qop(RC, RB, 2); \
157 \
158 get_round_keys(4*n+2); \
159 qop(RB, RA, 3); \
160 \
161 get_round_keys(4*n+3); \
162 qop(RA, RD, 1);
163
164#define QBAR(n) \
165 get_round_keys(4*n+3); \
166 qop(RA, RD, 1); \
167 \
168 get_round_keys(4*n+2); \
169 qop(RB, RA, 3); \
170 \
171 get_round_keys(4*n+1); \
172 qop(RC, RB, 2); \
173 \
174 get_round_keys(4*n+0); \
175 qop(RD, RC, 1);
176
177#define shuffle(mask) \
178 vpshufb mask, RKR, RKR;
179
180#define preload_rkr(n, do_mask, mask) \
181 vbroadcastss .L16_mask, RKR; \
182 \
183 vpxor (kr+n*16)(CTX), RKR, RKR; \
184 do_mask(mask);
185
186#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
187 vpunpckldq x1, x0, t0; \
188 vpunpckhdq x1, x0, t2; \
189 vpunpckldq x3, x2, t1; \
190 vpunpckhdq x3, x2, x3; \
191 \
192 vpunpcklqdq t1, t0, x0; \
193 vpunpckhqdq t1, t0, x1; \
194 vpunpcklqdq x3, t2, x2; \
195 vpunpckhqdq x3, t2, x3;
196
197#define inpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \
198 vpshufb rmask, x0, x0; \
199 vpshufb rmask, x1, x1; \
200 vpshufb rmask, x2, x2; \
201 vpshufb rmask, x3, x3; \
202 \
203 transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
204
205#define outunpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \
206 transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
207 \
208 vpshufb rmask, x0, x0; \
209 vpshufb rmask, x1, x1; \
210 vpshufb rmask, x2, x2; \
211 vpshufb rmask, x3, x3;
212
213.section .rodata.cst16, "aM", @progbits, 16
214.align 16
215.Lbswap_mask:
216 .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
217.Lbswap128_mask:
218 .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
219.Lrkr_enc_Q_Q_QBAR_QBAR:
220 .byte 0, 1, 2, 3, 4, 5, 6, 7, 11, 10, 9, 8, 15, 14, 13, 12
221.Lrkr_enc_QBAR_QBAR_QBAR_QBAR:
222 .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
223.Lrkr_dec_Q_Q_Q_Q:
224 .byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3
225.Lrkr_dec_Q_Q_QBAR_QBAR:
226 .byte 12, 13, 14, 15, 8, 9, 10, 11, 7, 6, 5, 4, 3, 2, 1, 0
227.Lrkr_dec_QBAR_QBAR_QBAR_QBAR:
228 .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
229
230.section .rodata.cst4.L16_mask, "aM", @progbits, 4
231.align 4
232.L16_mask:
233 .byte 16, 16, 16, 16
234
235.section .rodata.cst4.L32_mask, "aM", @progbits, 4
236.align 4
237.L32_mask:
238 .byte 32, 0, 0, 0
239
240.section .rodata.cst4.first_mask, "aM", @progbits, 4
241.align 4
242.Lfirst_mask:
243 .byte 0x1f, 0, 0, 0
244
245.text
246
247.align 8
248SYM_FUNC_START_LOCAL(__cast6_enc_blk8)
249
250
251
252
253
254
255
256 pushq %r15;
257 pushq %rbx;
258
259 movq %rdi, CTX;
260
261 vmovdqa .Lbswap_mask, RKM;
262 vmovd .Lfirst_mask, R1ST;
263 vmovd .L32_mask, R32;
264
265 inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
266 inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
267
268 preload_rkr(0, dummy, none);
269 Q(0);
270 Q(1);
271 Q(2);
272 Q(3);
273 preload_rkr(1, shuffle, .Lrkr_enc_Q_Q_QBAR_QBAR);
274 Q(4);
275 Q(5);
276 QBAR(6);
277 QBAR(7);
278 preload_rkr(2, shuffle, .Lrkr_enc_QBAR_QBAR_QBAR_QBAR);
279 QBAR(8);
280 QBAR(9);
281 QBAR(10);
282 QBAR(11);
283
284 popq %rbx;
285 popq %r15;
286
287 vmovdqa .Lbswap_mask, RKM;
288
289 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
290 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
291
292 ret;
293SYM_FUNC_END(__cast6_enc_blk8)
294
295.align 8
296SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
297
298
299
300
301
302
303
304 pushq %r15;
305 pushq %rbx;
306
307 movq %rdi, CTX;
308
309 vmovdqa .Lbswap_mask, RKM;
310 vmovd .Lfirst_mask, R1ST;
311 vmovd .L32_mask, R32;
312
313 inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
314 inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
315
316 preload_rkr(2, shuffle, .Lrkr_dec_Q_Q_Q_Q);
317 Q(11);
318 Q(10);
319 Q(9);
320 Q(8);
321 preload_rkr(1, shuffle, .Lrkr_dec_Q_Q_QBAR_QBAR);
322 Q(7);
323 Q(6);
324 QBAR(5);
325 QBAR(4);
326 preload_rkr(0, shuffle, .Lrkr_dec_QBAR_QBAR_QBAR_QBAR);
327 QBAR(3);
328 QBAR(2);
329 QBAR(1);
330 QBAR(0);
331
332 popq %rbx;
333 popq %r15;
334
335 vmovdqa .Lbswap_mask, RKM;
336 outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
337 outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
338
339 ret;
340SYM_FUNC_END(__cast6_dec_blk8)
341
342SYM_FUNC_START(cast6_ecb_enc_8way)
343
344
345
346
347
348 FRAME_BEGIN
349 pushq %r15;
350
351 movq %rdi, CTX;
352 movq %rsi, %r11;
353
354 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
355
356 call __cast6_enc_blk8;
357
358 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
359
360 popq %r15;
361 FRAME_END
362 ret;
363SYM_FUNC_END(cast6_ecb_enc_8way)
364
365SYM_FUNC_START(cast6_ecb_dec_8way)
366
367
368
369
370
371 FRAME_BEGIN
372 pushq %r15;
373
374 movq %rdi, CTX;
375 movq %rsi, %r11;
376
377 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
378
379 call __cast6_dec_blk8;
380
381 store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
382
383 popq %r15;
384 FRAME_END
385 ret;
386SYM_FUNC_END(cast6_ecb_dec_8way)
387
388SYM_FUNC_START(cast6_cbc_dec_8way)
389
390
391
392
393
394 FRAME_BEGIN
395 pushq %r12;
396 pushq %r15;
397
398 movq %rdi, CTX;
399 movq %rsi, %r11;
400 movq %rdx, %r12;
401
402 load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
403
404 call __cast6_dec_blk8;
405
406 store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
407
408 popq %r15;
409 popq %r12;
410 FRAME_END
411 ret;
412SYM_FUNC_END(cast6_cbc_dec_8way)
413