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authorDavid S. Miller <davem@davemloft.net>2012-08-28 15:05:54 -0400
committerDavid S. Miller <davem@davemloft.net>2012-08-28 23:51:24 -0400
commit81658ad0d92306ceb271994b90cd49ffde10eeda (patch)
tree8765d2fffb62a3e22752644ff329b9aec166a3eb /arch/sparc/crypto
parent3705665069944e003b7316ba31b44558864a00de (diff)
sparc64: Add CAMELLIA driver making use of the new camellia opcodes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/crypto')
-rw-r--r--arch/sparc/crypto/Makefile2
-rw-r--r--arch/sparc/crypto/camellia_asm.S583
-rw-r--r--arch/sparc/crypto/camellia_glue.c318
3 files changed, 903 insertions, 0 deletions
diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile
index dd999c6c8609..5d469d81761f 100644
--- a/arch/sparc/crypto/Makefile
+++ b/arch/sparc/crypto/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_CRYPTO_MD5_SPARC64) += md5-sparc64.o
9 9
10obj-$(CONFIG_CRYPTO_AES_SPARC64) += aes-sparc64.o 10obj-$(CONFIG_CRYPTO_AES_SPARC64) += aes-sparc64.o
11obj-$(CONFIG_CRYPTO_DES_SPARC64) += des-sparc64.o 11obj-$(CONFIG_CRYPTO_DES_SPARC64) += des-sparc64.o
12obj-$(CONFIG_CRYPTO_DES_SPARC64) += camellia-sparc64.o
12 13
13obj-$(CONFIG_CRYPTO_CRC32C_SPARC64) += crc32c-sparc64.o 14obj-$(CONFIG_CRYPTO_CRC32C_SPARC64) += crc32c-sparc64.o
14 15
@@ -19,5 +20,6 @@ md5-sparc64-y := md5_asm.o md5_glue.o
19 20
20aes-sparc64-y := aes_asm.o aes_glue.o 21aes-sparc64-y := aes_asm.o aes_glue.o
21des-sparc64-y := des_asm.o des_glue.o 22des-sparc64-y := des_asm.o des_glue.o
23camellia-sparc64-y := camellia_asm.o camellia_glue.o
22 24
23crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o 25crc32c-sparc64-y := crc32c_asm.o crc32c_glue.o
diff --git a/arch/sparc/crypto/camellia_asm.S b/arch/sparc/crypto/camellia_asm.S
new file mode 100644
index 000000000000..b0ddb5bcfe5f
--- /dev/null
+++ b/arch/sparc/crypto/camellia_asm.S
@@ -0,0 +1,583 @@
1#include <linux/linkage.h>
2#include <asm/visasm.h>
3
4#define F3F(x,y,z) (((x)<<30)|((y)<<19)|((z)<<5))
5
6#define FPD_ENCODE(x) (((x) >> 5) | ((x) & ~(0x20)))
7
8#define RS1(x) (FPD_ENCODE(x) << 14)
9#define RS2(x) (FPD_ENCODE(x) << 0)
10#define RS3(x) (FPD_ENCODE(x) << 9)
11#define RD(x) (FPD_ENCODE(x) << 25)
12#define IMM5(x) ((x) << 0)
13
14#define CAMELLIA_F(a,b,c,d) \
15 .word (F3F(2, 0x19, 0x00c)|RS1(a)|RS2(b)|RS3(c)|RD(d));
16#define CAMELLIA_FL(a,b,c) \
17 .word (F3F(2, 0x36, 0x13c)|RS1(a)|RS2(b)|RD(c));
18#define CAMELLIA_FLI(a,b,c) \
19 .word (F3F(2, 0x36, 0x13d)|RS1(a)|RS2(b)|RD(c));
20
21#define MOVDTOX_F0_O4 \
22 .word 0x99b02200
23#define MOVDTOX_F2_O5 \
24 .word 0x9bb02202
25
26#define CAMELLIA_6ROUNDS(KEY_BASE, I0, I1) \
27 CAMELLIA_F(KEY_BASE + 0, I1, I0, I1) \
28 CAMELLIA_F(KEY_BASE + 2, I0, I1, I0) \
29 CAMELLIA_F(KEY_BASE + 4, I1, I0, I1) \
30 CAMELLIA_F(KEY_BASE + 6, I0, I1, I0) \
31 CAMELLIA_F(KEY_BASE + 8, I1, I0, I1) \
32 CAMELLIA_F(KEY_BASE + 10, I0, I1, I0)
33
34#define CAMELLIA_6ROUNDS_FL_FLI(KEY_BASE, I0, I1) \
35 CAMELLIA_6ROUNDS(KEY_BASE, I0, I1) \
36 CAMELLIA_FL(KEY_BASE + 12, I0, I0) \
37 CAMELLIA_FLI(KEY_BASE + 14, I1, I1)
38
39 .data
40
41 .align 8
42SIGMA: .xword 0xA09E667F3BCC908B
43 .xword 0xB67AE8584CAA73B2
44 .xword 0xC6EF372FE94F82BE
45 .xword 0x54FF53A5F1D36F1C
46 .xword 0x10E527FADE682D1D
47 .xword 0xB05688C2B3E6C1FD
48
49 .text
50
51 .align 32
52ENTRY(camellia_sparc64_key_expand)
53 /* %o0=in_key, %o1=out_key, %o2=key_len */
54 VISEntry
55 ld [%o0 + 0x00], %f0 ! i0, k[0]
56 ld [%o0 + 0x04], %f1 ! i1, k[1]
57 ld [%o0 + 0x08], %f2 ! i2, k[2]
58 ld [%o0 + 0x0c], %f3 ! i3, k[3]
59 std %f0, [%o1 + 0x00] ! k[0, 1]
60 fsrc2 %f0, %f28
61 std %f2, [%o1 + 0x08] ! k[2, 3]
62 cmp %o2, 16
63 be 10f
64 fsrc2 %f2, %f30
65
66 ld [%o0 + 0x10], %f0
67 ld [%o0 + 0x14], %f1
68 std %f0, [%o1 + 0x20] ! k[8, 9]
69 cmp %o2, 24
70 fone %f10
71 be,a 1f
72 fxor %f10, %f0, %f2
73 ld [%o0 + 0x18], %f2
74 ld [%o0 + 0x1c], %f3
751:
76 std %f2, [%o1 + 0x28] ! k[10, 11]
77 fxor %f28, %f0, %f0
78 fxor %f30, %f2, %f2
79
8010:
81 sethi %hi(SIGMA), %g3
82 or %g3, %lo(SIGMA), %g3
83 ldd [%g3 + 0x00], %f16
84 ldd [%g3 + 0x08], %f18
85 ldd [%g3 + 0x10], %f20
86 ldd [%g3 + 0x18], %f22
87 ldd [%g3 + 0x20], %f24
88 ldd [%g3 + 0x28], %f26
89 CAMELLIA_F(16, 2, 0, 2)
90 CAMELLIA_F(18, 0, 2, 0)
91 fxor %f28, %f0, %f0
92 fxor %f30, %f2, %f2
93 CAMELLIA_F(20, 2, 0, 2)
94 CAMELLIA_F(22, 0, 2, 0)
95
96#define ROTL128(S01, S23, TMP1, TMP2, N) \
97 srlx S01, (64 - N), TMP1; \
98 sllx S01, N, S01; \
99 srlx S23, (64 - N), TMP2; \
100 sllx S23, N, S23; \
101 or S01, TMP2, S01; \
102 or S23, TMP1, S23
103
104 cmp %o2, 16
105 bne 1f
106 nop
107 /* 128-bit key */
108 std %f0, [%o1 + 0x10] ! k[ 4, 5]
109 std %f2, [%o1 + 0x18] ! k[ 6, 7]
110 MOVDTOX_F0_O4
111 MOVDTOX_F2_O5
112 ROTL128(%o4, %o5, %g2, %g3, 15)
113 stx %o4, [%o1 + 0x30] ! k[12, 13]
114 stx %o5, [%o1 + 0x38] ! k[14, 15]
115 ROTL128(%o4, %o5, %g2, %g3, 15)
116 stx %o4, [%o1 + 0x40] ! k[16, 17]
117 stx %o5, [%o1 + 0x48] ! k[18, 19]
118 ROTL128(%o4, %o5, %g2, %g3, 15)
119 stx %o4, [%o1 + 0x60] ! k[24, 25]
120 ROTL128(%o4, %o5, %g2, %g3, 15)
121 stx %o4, [%o1 + 0x70] ! k[28, 29]
122 stx %o5, [%o1 + 0x78] ! k[30, 31]
123 ROTL128(%o4, %o5, %g2, %g3, 34)
124 stx %o4, [%o1 + 0xa0] ! k[40, 41]
125 stx %o5, [%o1 + 0xa8] ! k[42, 43]
126 ROTL128(%o4, %o5, %g2, %g3, 17)
127 stx %o4, [%o1 + 0xc0] ! k[48, 49]
128 stx %o5, [%o1 + 0xc8] ! k[50, 51]
129
130 ldx [%o1 + 0x00], %o4 ! k[ 0, 1]
131 ldx [%o1 + 0x08], %o5 ! k[ 2, 3]
132 ROTL128(%o4, %o5, %g2, %g3, 15)
133 stx %o4, [%o1 + 0x20] ! k[ 8, 9]
134 stx %o5, [%o1 + 0x28] ! k[10, 11]
135 ROTL128(%o4, %o5, %g2, %g3, 30)
136 stx %o4, [%o1 + 0x50] ! k[20, 21]
137 stx %o5, [%o1 + 0x58] ! k[22, 23]
138 ROTL128(%o4, %o5, %g2, %g3, 15)
139 stx %o5, [%o1 + 0x68] ! k[26, 27]
140 ROTL128(%o4, %o5, %g2, %g3, 17)
141 stx %o4, [%o1 + 0x80] ! k[32, 33]
142 stx %o5, [%o1 + 0x88] ! k[34, 35]
143 ROTL128(%o4, %o5, %g2, %g3, 17)
144 stx %o4, [%o1 + 0x90] ! k[36, 37]
145 stx %o5, [%o1 + 0x98] ! k[38, 39]
146 ROTL128(%o4, %o5, %g2, %g3, 17)
147 stx %o4, [%o1 + 0xb0] ! k[44, 45]
148 stx %o5, [%o1 + 0xb8] ! k[46, 47]
149
150 ba,pt %xcc, 2f
151 mov (3 * 16 * 4), %o0
152
1531:
154 /* 192-bit or 256-bit key */
155 std %f0, [%o1 + 0x30] ! k[12, 13]
156 std %f2, [%o1 + 0x38] ! k[14, 15]
157 ldd [%o1 + 0x20], %f4 ! k[ 8, 9]
158 ldd [%o1 + 0x28], %f6 ! k[10, 11]
159 fxor %f0, %f4, %f0
160 fxor %f2, %f6, %f2
161 CAMELLIA_F(24, 2, 0, 2)
162 CAMELLIA_F(26, 0, 2, 0)
163 std %f0, [%o1 + 0x10] ! k[ 4, 5]
164 std %f2, [%o1 + 0x18] ! k[ 6, 7]
165 MOVDTOX_F0_O4
166 MOVDTOX_F2_O5
167 ROTL128(%o4, %o5, %g2, %g3, 30)
168 stx %o4, [%o1 + 0x50] ! k[20, 21]
169 stx %o5, [%o1 + 0x58] ! k[22, 23]
170 ROTL128(%o4, %o5, %g2, %g3, 30)
171 stx %o4, [%o1 + 0xa0] ! k[40, 41]
172 stx %o5, [%o1 + 0xa8] ! k[42, 43]
173 ROTL128(%o4, %o5, %g2, %g3, 51)
174 stx %o4, [%o1 + 0x100] ! k[64, 65]
175 stx %o5, [%o1 + 0x108] ! k[66, 67]
176 ldx [%o1 + 0x20], %o4 ! k[ 8, 9]
177 ldx [%o1 + 0x28], %o5 ! k[10, 11]
178 ROTL128(%o4, %o5, %g2, %g3, 15)
179 stx %o4, [%o1 + 0x20] ! k[ 8, 9]
180 stx %o5, [%o1 + 0x28] ! k[10, 11]
181 ROTL128(%o4, %o5, %g2, %g3, 15)
182 stx %o4, [%o1 + 0x40] ! k[16, 17]
183 stx %o5, [%o1 + 0x48] ! k[18, 19]
184 ROTL128(%o4, %o5, %g2, %g3, 30)
185 stx %o4, [%o1 + 0x90] ! k[36, 37]
186 stx %o5, [%o1 + 0x98] ! k[38, 39]
187 ROTL128(%o4, %o5, %g2, %g3, 34)
188 stx %o4, [%o1 + 0xd0] ! k[52, 53]
189 stx %o5, [%o1 + 0xd8] ! k[54, 55]
190 ldx [%o1 + 0x30], %o4 ! k[12, 13]
191 ldx [%o1 + 0x38], %o5 ! k[14, 15]
192 ROTL128(%o4, %o5, %g2, %g3, 15)
193 stx %o4, [%o1 + 0x30] ! k[12, 13]
194 stx %o5, [%o1 + 0x38] ! k[14, 15]
195 ROTL128(%o4, %o5, %g2, %g3, 30)
196 stx %o4, [%o1 + 0x70] ! k[28, 29]
197 stx %o5, [%o1 + 0x78] ! k[30, 31]
198 srlx %o4, 32, %g2
199 srlx %o5, 32, %g3
200 stw %o4, [%o1 + 0xc0] ! k[48]
201 stw %g3, [%o1 + 0xc4] ! k[49]
202 stw %o5, [%o1 + 0xc8] ! k[50]
203 stw %g2, [%o1 + 0xcc] ! k[51]
204 ROTL128(%o4, %o5, %g2, %g3, 49)
205 stx %o4, [%o1 + 0xe0] ! k[56, 57]
206 stx %o5, [%o1 + 0xe8] ! k[58, 59]
207 ldx [%o1 + 0x00], %o4 ! k[ 0, 1]
208 ldx [%o1 + 0x08], %o5 ! k[ 2, 3]
209 ROTL128(%o4, %o5, %g2, %g3, 45)
210 stx %o4, [%o1 + 0x60] ! k[24, 25]
211 stx %o5, [%o1 + 0x68] ! k[26, 27]
212 ROTL128(%o4, %o5, %g2, %g3, 15)
213 stx %o4, [%o1 + 0x80] ! k[32, 33]
214 stx %o5, [%o1 + 0x88] ! k[34, 35]
215 ROTL128(%o4, %o5, %g2, %g3, 17)
216 stx %o4, [%o1 + 0xb0] ! k[44, 45]
217 stx %o5, [%o1 + 0xb8] ! k[46, 47]
218 ROTL128(%o4, %o5, %g2, %g3, 34)
219 stx %o4, [%o1 + 0xf0] ! k[60, 61]
220 stx %o5, [%o1 + 0xf8] ! k[62, 63]
221 mov (4 * 16 * 4), %o0
2222:
223 add %o1, %o0, %o1
224 ldd [%o1 + 0x00], %f0
225 ldd [%o1 + 0x08], %f2
226 std %f0, [%o3 + 0x00]
227 std %f2, [%o3 + 0x08]
228 add %o3, 0x10, %o3
2291:
230 sub %o1, (16 * 4), %o1
231 ldd [%o1 + 0x38], %f0
232 ldd [%o1 + 0x30], %f2
233 ldd [%o1 + 0x28], %f4
234 ldd [%o1 + 0x20], %f6
235 ldd [%o1 + 0x18], %f8
236 ldd [%o1 + 0x10], %f10
237 std %f0, [%o3 + 0x00]
238 std %f2, [%o3 + 0x08]
239 std %f4, [%o3 + 0x10]
240 std %f6, [%o3 + 0x18]
241 std %f8, [%o3 + 0x20]
242 std %f10, [%o3 + 0x28]
243
244 ldd [%o1 + 0x08], %f0
245 ldd [%o1 + 0x00], %f2
246 std %f0, [%o3 + 0x30]
247 std %f2, [%o3 + 0x38]
248 subcc %o0, (16 * 4), %o0
249 bne,pt %icc, 1b
250 add %o3, (16 * 4), %o3
251
252 std %f2, [%o3 - 0x10]
253 std %f0, [%o3 - 0x08]
254
255 retl
256 VISExit
257ENDPROC(camellia_sparc64_key_expand)
258
259 .align 32
260ENTRY(camellia_sparc64_crypt)
261 /* %o0=key, %o1=input, %o2=output, %o3=key_len */
262 VISEntry
263
264 ld [%o1 + 0x00], %f0
265 ld [%o1 + 0x04], %f1
266 ld [%o1 + 0x08], %f2
267 ld [%o1 + 0x0c], %f3
268
269 ldd [%o0 + 0x00], %f4
270 ldd [%o0 + 0x08], %f6
271
272 cmp %o3, 16
273 fxor %f4, %f0, %f0
274 be 1f
275 fxor %f6, %f2, %f2
276
277 ldd [%o0 + 0x10], %f8
278 ldd [%o0 + 0x18], %f10
279 ldd [%o0 + 0x20], %f12
280 ldd [%o0 + 0x28], %f14
281 ldd [%o0 + 0x30], %f16
282 ldd [%o0 + 0x38], %f18
283 ldd [%o0 + 0x40], %f20
284 ldd [%o0 + 0x48], %f22
285 add %o0, 0x40, %o0
286
287 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
288
2891:
290 ldd [%o0 + 0x10], %f8
291 ldd [%o0 + 0x18], %f10
292 ldd [%o0 + 0x20], %f12
293 ldd [%o0 + 0x28], %f14
294 ldd [%o0 + 0x30], %f16
295 ldd [%o0 + 0x38], %f18
296 ldd [%o0 + 0x40], %f20
297 ldd [%o0 + 0x48], %f22
298 ldd [%o0 + 0x50], %f24
299 ldd [%o0 + 0x58], %f26
300 ldd [%o0 + 0x60], %f28
301 ldd [%o0 + 0x68], %f30
302 ldd [%o0 + 0x70], %f32
303 ldd [%o0 + 0x78], %f34
304 ldd [%o0 + 0x80], %f36
305 ldd [%o0 + 0x88], %f38
306 ldd [%o0 + 0x90], %f40
307 ldd [%o0 + 0x98], %f42
308 ldd [%o0 + 0xa0], %f44
309 ldd [%o0 + 0xa8], %f46
310 ldd [%o0 + 0xb0], %f48
311 ldd [%o0 + 0xb8], %f50
312 ldd [%o0 + 0xc0], %f52
313 ldd [%o0 + 0xc8], %f54
314
315 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
316 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
317 CAMELLIA_6ROUNDS(40, 0, 2)
318 fxor %f52, %f2, %f2
319 fxor %f54, %f0, %f0
320
321 st %f2, [%o2 + 0x00]
322 st %f3, [%o2 + 0x04]
323 st %f0, [%o2 + 0x08]
324 st %f1, [%o2 + 0x0c]
325
326 retl
327 VISExit
328ENDPROC(camellia_sparc64_crypt)
329
330 .align 32
331ENTRY(camellia_sparc64_load_keys)
332 /* %o0=key, %o1=key_len */
333 VISEntry
334 ldd [%o0 + 0x00], %f4
335 ldd [%o0 + 0x08], %f6
336 ldd [%o0 + 0x10], %f8
337 ldd [%o0 + 0x18], %f10
338 ldd [%o0 + 0x20], %f12
339 ldd [%o0 + 0x28], %f14
340 ldd [%o0 + 0x30], %f16
341 ldd [%o0 + 0x38], %f18
342 ldd [%o0 + 0x40], %f20
343 ldd [%o0 + 0x48], %f22
344 ldd [%o0 + 0x50], %f24
345 ldd [%o0 + 0x58], %f26
346 ldd [%o0 + 0x60], %f28
347 ldd [%o0 + 0x68], %f30
348 ldd [%o0 + 0x70], %f32
349 ldd [%o0 + 0x78], %f34
350 ldd [%o0 + 0x80], %f36
351 ldd [%o0 + 0x88], %f38
352 ldd [%o0 + 0x90], %f40
353 ldd [%o0 + 0x98], %f42
354 ldd [%o0 + 0xa0], %f44
355 ldd [%o0 + 0xa8], %f46
356 ldd [%o0 + 0xb0], %f48
357 ldd [%o0 + 0xb8], %f50
358 ldd [%o0 + 0xc0], %f52
359 retl
360 ldd [%o0 + 0xc8], %f54
361ENDPROC(camellia_sparc64_load_keys)
362
363 .align 32
364ENTRY(camellia_sparc64_ecb_crypt_3_grand_rounds)
365 /* %o0=input, %o1=output, %o2=len, %o3=key */
3661: ldd [%o0 + 0x00], %f0
367 ldd [%o0 + 0x08], %f2
368 add %o0, 0x10, %o0
369 fxor %f4, %f0, %f0
370 fxor %f6, %f2, %f2
371 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
372 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
373 CAMELLIA_6ROUNDS(40, 0, 2)
374 fxor %f52, %f2, %f2
375 fxor %f54, %f0, %f0
376 std %f2, [%o1 + 0x00]
377 std %f0, [%o1 + 0x08]
378 subcc %o2, 0x10, %o2
379 bne,pt %icc, 1b
380 add %o1, 0x10, %o1
381 retl
382 nop
383ENDPROC(camellia_sparc64_ecb_crypt_3_grand_rounds)
384
385 .align 32
386ENTRY(camellia_sparc64_ecb_crypt_4_grand_rounds)
387 /* %o0=input, %o1=output, %o2=len, %o3=key */
3881: ldd [%o0 + 0x00], %f0
389 ldd [%o0 + 0x08], %f2
390 add %o0, 0x10, %o0
391 fxor %f4, %f0, %f0
392 fxor %f6, %f2, %f2
393 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
394 ldd [%o3 + 0xd0], %f8
395 ldd [%o3 + 0xd8], %f10
396 ldd [%o3 + 0xe0], %f12
397 ldd [%o3 + 0xe8], %f14
398 ldd [%o3 + 0xf0], %f16
399 ldd [%o3 + 0xf8], %f18
400 ldd [%o3 + 0x100], %f20
401 ldd [%o3 + 0x108], %f22
402 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
403 CAMELLIA_6ROUNDS_FL_FLI(40, 0, 2)
404 CAMELLIA_F(8, 2, 0, 2)
405 CAMELLIA_F(10, 0, 2, 0)
406 ldd [%o3 + 0x10], %f8
407 ldd [%o3 + 0x18], %f10
408 CAMELLIA_F(12, 2, 0, 2)
409 CAMELLIA_F(14, 0, 2, 0)
410 ldd [%o3 + 0x20], %f12
411 ldd [%o3 + 0x28], %f14
412 CAMELLIA_F(16, 2, 0, 2)
413 CAMELLIA_F(18, 0, 2, 0)
414 ldd [%o3 + 0x30], %f16
415 ldd [%o3 + 0x38], %f18
416 fxor %f20, %f2, %f2
417 fxor %f22, %f0, %f0
418 ldd [%o3 + 0x40], %f20
419 ldd [%o3 + 0x48], %f22
420 std %f2, [%o1 + 0x00]
421 std %f0, [%o1 + 0x08]
422 subcc %o2, 0x10, %o2
423 bne,pt %icc, 1b
424 add %o1, 0x10, %o1
425 retl
426 nop
427ENDPROC(camellia_sparc64_ecb_crypt_4_grand_rounds)
428
429 .align 32
430ENTRY(camellia_sparc64_cbc_encrypt_3_grand_rounds)
431 /* %o0=input, %o1=output, %o2=len, %o3=key, %o4=IV */
432 ldd [%o4 + 0x00], %f60
433 ldd [%o4 + 0x08], %f62
4341: ldd [%o0 + 0x00], %f0
435 ldd [%o0 + 0x08], %f2
436 add %o0, 0x10, %o0
437 fxor %f60, %f0, %f0
438 fxor %f62, %f2, %f2
439 fxor %f4, %f0, %f0
440 fxor %f6, %f2, %f2
441 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
442 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
443 CAMELLIA_6ROUNDS(40, 0, 2)
444 fxor %f52, %f2, %f60
445 fxor %f54, %f0, %f62
446 std %f60, [%o1 + 0x00]
447 std %f62, [%o1 + 0x08]
448 subcc %o2, 0x10, %o2
449 bne,pt %icc, 1b
450 add %o1, 0x10, %o1
451 std %f60, [%o4 + 0x00]
452 retl
453 std %f62, [%o4 + 0x08]
454ENDPROC(camellia_sparc64_cbc_encrypt_3_grand_rounds)
455
456 .align 32
457ENTRY(camellia_sparc64_cbc_encrypt_4_grand_rounds)
458 /* %o0=input, %o1=output, %o2=len, %o3=key, %o4=IV */
459 ldd [%o4 + 0x00], %f60
460 ldd [%o4 + 0x08], %f62
4611: ldd [%o0 + 0x00], %f0
462 ldd [%o0 + 0x08], %f2
463 add %o0, 0x10, %o0
464 fxor %f60, %f0, %f0
465 fxor %f62, %f2, %f2
466 fxor %f4, %f0, %f0
467 fxor %f6, %f2, %f2
468 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
469 ldd [%o3 + 0xd0], %f8
470 ldd [%o3 + 0xd8], %f10
471 ldd [%o3 + 0xe0], %f12
472 ldd [%o3 + 0xe8], %f14
473 ldd [%o3 + 0xf0], %f16
474 ldd [%o3 + 0xf8], %f18
475 ldd [%o3 + 0x100], %f20
476 ldd [%o3 + 0x108], %f22
477 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
478 CAMELLIA_6ROUNDS_FL_FLI(40, 0, 2)
479 CAMELLIA_F(8, 2, 0, 2)
480 CAMELLIA_F(10, 0, 2, 0)
481 ldd [%o3 + 0x10], %f8
482 ldd [%o3 + 0x18], %f10
483 CAMELLIA_F(12, 2, 0, 2)
484 CAMELLIA_F(14, 0, 2, 0)
485 ldd [%o3 + 0x20], %f12
486 ldd [%o3 + 0x28], %f14
487 CAMELLIA_F(16, 2, 0, 2)
488 CAMELLIA_F(18, 0, 2, 0)
489 ldd [%o3 + 0x30], %f16
490 ldd [%o3 + 0x38], %f18
491 fxor %f20, %f2, %f60
492 fxor %f22, %f0, %f62
493 ldd [%o3 + 0x40], %f20
494 ldd [%o3 + 0x48], %f22
495 std %f60, [%o1 + 0x00]
496 std %f62, [%o1 + 0x08]
497 subcc %o2, 0x10, %o2
498 bne,pt %icc, 1b
499 add %o1, 0x10, %o1
500 std %f60, [%o4 + 0x00]
501 retl
502 std %f62, [%o4 + 0x08]
503ENDPROC(camellia_sparc64_cbc_encrypt_4_grand_rounds)
504
505 .align 32
506ENTRY(camellia_sparc64_cbc_decrypt_3_grand_rounds)
507 /* %o0=input, %o1=output, %o2=len, %o3=key, %o4=IV */
508 ldd [%o4 + 0x00], %f60
509 ldd [%o4 + 0x08], %f62
5101: ldd [%o0 + 0x00], %f56
511 ldd [%o0 + 0x08], %f58
512 add %o0, 0x10, %o0
513 fxor %f4, %f56, %f0
514 fxor %f6, %f58, %f2
515 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
516 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
517 CAMELLIA_6ROUNDS(40, 0, 2)
518 fxor %f52, %f2, %f2
519 fxor %f54, %f0, %f0
520 fxor %f60, %f2, %f2
521 fxor %f62, %f0, %f0
522 fsrc2 %f56, %f60
523 fsrc2 %f58, %f62
524 std %f2, [%o1 + 0x00]
525 std %f0, [%o1 + 0x08]
526 subcc %o2, 0x10, %o2
527 bne,pt %icc, 1b
528 add %o1, 0x10, %o1
529 std %f60, [%o4 + 0x00]
530 retl
531 std %f62, [%o4 + 0x08]
532ENDPROC(camellia_sparc64_cbc_decrypt_3_grand_rounds)
533
534 .align 32
535ENTRY(camellia_sparc64_cbc_decrypt_4_grand_rounds)
536 /* %o0=input, %o1=output, %o2=len, %o3=key, %o4=IV */
537 ldd [%o4 + 0x00], %f60
538 ldd [%o4 + 0x08], %f62
5391: ldd [%o0 + 0x00], %f56
540 ldd [%o0 + 0x08], %f58
541 add %o0, 0x10, %o0
542 fxor %f4, %f56, %f0
543 fxor %f6, %f58, %f2
544 CAMELLIA_6ROUNDS_FL_FLI( 8, 0, 2)
545 ldd [%o3 + 0xd0], %f8
546 ldd [%o3 + 0xd8], %f10
547 ldd [%o3 + 0xe0], %f12
548 ldd [%o3 + 0xe8], %f14
549 ldd [%o3 + 0xf0], %f16
550 ldd [%o3 + 0xf8], %f18
551 ldd [%o3 + 0x100], %f20
552 ldd [%o3 + 0x108], %f22
553 CAMELLIA_6ROUNDS_FL_FLI(24, 0, 2)
554 CAMELLIA_6ROUNDS_FL_FLI(40, 0, 2)
555 CAMELLIA_F(8, 2, 0, 2)
556 CAMELLIA_F(10, 0, 2, 0)
557 ldd [%o3 + 0x10], %f8
558 ldd [%o3 + 0x18], %f10
559 CAMELLIA_F(12, 2, 0, 2)
560 CAMELLIA_F(14, 0, 2, 0)
561 ldd [%o3 + 0x20], %f12
562 ldd [%o3 + 0x28], %f14
563 CAMELLIA_F(16, 2, 0, 2)
564 CAMELLIA_F(18, 0, 2, 0)
565 ldd [%o3 + 0x30], %f16
566 ldd [%o3 + 0x38], %f18
567 fxor %f20, %f2, %f2
568 fxor %f22, %f0, %f0
569 ldd [%o3 + 0x40], %f20
570 ldd [%o3 + 0x48], %f22
571 fxor %f60, %f2, %f2
572 fxor %f62, %f0, %f0
573 fsrc2 %f56, %f60
574 fsrc2 %f58, %f62
575 std %f2, [%o1 + 0x00]
576 std %f0, [%o1 + 0x08]
577 subcc %o2, 0x10, %o2
578 bne,pt %icc, 1b
579 add %o1, 0x10, %o1
580 std %f60, [%o4 + 0x00]
581 retl
582 std %f62, [%o4 + 0x08]
583ENDPROC(camellia_sparc64_cbc_decrypt_4_grand_rounds)
diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c
new file mode 100644
index 000000000000..c258cc550a6b
--- /dev/null
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -0,0 +1,318 @@
1/* Glue code for CAMELLIA encryption optimized for sparc64 crypto opcodes.
2 *
3 * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
4 */
5
6#include <linux/crypto.h>
7#include <linux/init.h>
8#include <linux/module.h>
9#include <linux/mm.h>
10#include <linux/types.h>
11#include <crypto/algapi.h>
12
13#include <asm/fpumacro.h>
14#include <asm/pstate.h>
15#include <asm/elf.h>
16
17#define CAMELLIA_MIN_KEY_SIZE 16
18#define CAMELLIA_MAX_KEY_SIZE 32
19#define CAMELLIA_BLOCK_SIZE 16
20#define CAMELLIA_TABLE_BYTE_LEN 272
21
22struct camellia_sparc64_ctx {
23 u64 encrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
24 u64 decrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
25 int key_len;
26};
27
28extern void camellia_sparc64_key_expand(const u32 *in_key, u64 *encrypt_key,
29 unsigned int key_len, u64 *decrypt_key);
30
31static int camellia_set_key(struct crypto_tfm *tfm, const u8 *_in_key,
32 unsigned int key_len)
33{
34 struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
35 const u32 *in_key = (const u32 *) _in_key;
36 u32 *flags = &tfm->crt_flags;
37
38 if (key_len != 16 && key_len != 24 && key_len != 32) {
39 *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
40 return -EINVAL;
41 }
42
43 ctx->key_len = key_len;
44
45 camellia_sparc64_key_expand(in_key, &ctx->encrypt_key[0],
46 key_len, &ctx->decrypt_key[0]);
47 return 0;
48}
49
50extern void camellia_sparc64_crypt(const u64 *key, const u32 *input,
51 u32 *output, unsigned int key_len);
52
53static void camellia_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
54{
55 struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
56
57 camellia_sparc64_crypt(&ctx->encrypt_key[0],
58 (const u32 *) src,
59 (u32 *) dst, ctx->key_len);
60}
61
62static void camellia_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
63{
64 struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
65
66 camellia_sparc64_crypt(&ctx->decrypt_key[0],
67 (const u32 *) src,
68 (u32 *) dst, ctx->key_len);
69}
70
71extern void camellia_sparc64_load_keys(const u64 *key, unsigned int key_len);
72
73typedef void ecb_crypt_op(const u64 *input, u64 *output, unsigned int len,
74 const u64 *key);
75
76extern ecb_crypt_op camellia_sparc64_ecb_crypt_3_grand_rounds;
77extern ecb_crypt_op camellia_sparc64_ecb_crypt_4_grand_rounds;
78
79#define CAMELLIA_BLOCK_MASK (~(CAMELLIA_BLOCK_SIZE - 1))
80
81static int __ecb_crypt(struct blkcipher_desc *desc,
82 struct scatterlist *dst, struct scatterlist *src,
83 unsigned int nbytes, bool encrypt)
84{
85 struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
86 struct blkcipher_walk walk;
87 ecb_crypt_op *op;
88 const u64 *key;
89 int err;
90
91 op = camellia_sparc64_ecb_crypt_3_grand_rounds;
92 if (ctx->key_len != 16)
93 op = camellia_sparc64_ecb_crypt_4_grand_rounds;
94
95 blkcipher_walk_init(&walk, dst, src, nbytes);
96 err = blkcipher_walk_virt(desc, &walk);
97
98 if (encrypt)
99 key = &ctx->encrypt_key[0];
100 else
101 key = &ctx->decrypt_key[0];
102 camellia_sparc64_load_keys(key, ctx->key_len);
103 while ((nbytes = walk.nbytes)) {
104 unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
105
106 if (likely(block_len)) {
107 const u64 *src64;
108 u64 *dst64;
109
110 src64 = (const u64 *)walk.src.virt.addr;
111 dst64 = (u64 *) walk.dst.virt.addr;
112 op(src64, dst64, block_len, key);
113 }
114 nbytes &= CAMELLIA_BLOCK_SIZE - 1;
115 err = blkcipher_walk_done(desc, &walk, nbytes);
116 }
117 fprs_write(0);
118 return err;
119}
120
121static int ecb_encrypt(struct blkcipher_desc *desc,
122 struct scatterlist *dst, struct scatterlist *src,
123 unsigned int nbytes)
124{
125 return __ecb_crypt(desc, dst, src, nbytes, true);
126}
127
128static int ecb_decrypt(struct blkcipher_desc *desc,
129 struct scatterlist *dst, struct scatterlist *src,
130 unsigned int nbytes)
131{
132 return __ecb_crypt(desc, dst, src, nbytes, false);
133}
134
135typedef void cbc_crypt_op(const u64 *input, u64 *output, unsigned int len,
136 const u64 *key, u64 *iv);
137
138extern cbc_crypt_op camellia_sparc64_cbc_encrypt_3_grand_rounds;
139extern cbc_crypt_op camellia_sparc64_cbc_encrypt_4_grand_rounds;
140extern cbc_crypt_op camellia_sparc64_cbc_decrypt_3_grand_rounds;
141extern cbc_crypt_op camellia_sparc64_cbc_decrypt_4_grand_rounds;
142
143static int cbc_encrypt(struct blkcipher_desc *desc,
144 struct scatterlist *dst, struct scatterlist *src,
145 unsigned int nbytes)
146{
147 struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
148 struct blkcipher_walk walk;
149 cbc_crypt_op *op;
150 const u64 *key;
151 int err;
152
153 op = camellia_sparc64_cbc_encrypt_3_grand_rounds;
154 if (ctx->key_len != 16)
155 op = camellia_sparc64_cbc_encrypt_4_grand_rounds;
156
157 blkcipher_walk_init(&walk, dst, src, nbytes);
158 err = blkcipher_walk_virt(desc, &walk);
159
160 key = &ctx->encrypt_key[0];
161 camellia_sparc64_load_keys(key, ctx->key_len);
162 while ((nbytes = walk.nbytes)) {
163 unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
164
165 if (likely(block_len)) {
166 const u64 *src64;
167 u64 *dst64;
168
169 src64 = (const u64 *)walk.src.virt.addr;
170 dst64 = (u64 *) walk.dst.virt.addr;
171 op(src64, dst64, block_len, key,
172 (u64 *) walk.iv);
173 }
174 nbytes &= CAMELLIA_BLOCK_SIZE - 1;
175 err = blkcipher_walk_done(desc, &walk, nbytes);
176 }
177 fprs_write(0);
178 return err;
179}
180
181static int cbc_decrypt(struct blkcipher_desc *desc,
182 struct scatterlist *dst, struct scatterlist *src,
183 unsigned int nbytes)
184{
185 struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
186 struct blkcipher_walk walk;
187 cbc_crypt_op *op;
188 const u64 *key;
189 int err;
190
191 op = camellia_sparc64_cbc_decrypt_3_grand_rounds;
192 if (ctx->key_len != 16)
193 op = camellia_sparc64_cbc_decrypt_4_grand_rounds;
194
195 blkcipher_walk_init(&walk, dst, src, nbytes);
196 err = blkcipher_walk_virt(desc, &walk);
197
198 key = &ctx->decrypt_key[0];
199 camellia_sparc64_load_keys(key, ctx->key_len);
200 while ((nbytes = walk.nbytes)) {
201 unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
202
203 if (likely(block_len)) {
204 const u64 *src64;
205 u64 *dst64;
206
207 src64 = (const u64 *)walk.src.virt.addr;
208 dst64 = (u64 *) walk.dst.virt.addr;
209 op(src64, dst64, block_len, key,
210 (u64 *) walk.iv);
211 }
212 nbytes &= CAMELLIA_BLOCK_SIZE - 1;
213 err = blkcipher_walk_done(desc, &walk, nbytes);
214 }
215 fprs_write(0);
216 return err;
217}
218
219static struct crypto_alg algs[] = { {
220 .cra_name = "camellia",
221 .cra_driver_name = "camellia-sparc64",
222 .cra_priority = 150,
223 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
224 .cra_blocksize = CAMELLIA_BLOCK_SIZE,
225 .cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
226 .cra_alignmask = 3,
227 .cra_module = THIS_MODULE,
228 .cra_u = {
229 .cipher = {
230 .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
231 .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
232 .cia_setkey = camellia_set_key,
233 .cia_encrypt = camellia_encrypt,
234 .cia_decrypt = camellia_decrypt
235 }
236 }
237}, {
238 .cra_name = "ecb(camellia)",
239 .cra_driver_name = "ecb-camellia-sparc64",
240 .cra_priority = 150,
241 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
242 .cra_blocksize = CAMELLIA_BLOCK_SIZE,
243 .cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
244 .cra_alignmask = 7,
245 .cra_type = &crypto_blkcipher_type,
246 .cra_module = THIS_MODULE,
247 .cra_u = {
248 .blkcipher = {
249 .min_keysize = CAMELLIA_MIN_KEY_SIZE,
250 .max_keysize = CAMELLIA_MAX_KEY_SIZE,
251 .setkey = camellia_set_key,
252 .encrypt = ecb_encrypt,
253 .decrypt = ecb_decrypt,
254 },
255 },
256}, {
257 .cra_name = "cbc(camellia)",
258 .cra_driver_name = "cbc-camellia-sparc64",
259 .cra_priority = 150,
260 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
261 .cra_blocksize = CAMELLIA_BLOCK_SIZE,
262 .cra_ctxsize = sizeof(struct camellia_sparc64_ctx),
263 .cra_alignmask = 7,
264 .cra_type = &crypto_blkcipher_type,
265 .cra_module = THIS_MODULE,
266 .cra_u = {
267 .blkcipher = {
268 .min_keysize = CAMELLIA_MIN_KEY_SIZE,
269 .max_keysize = CAMELLIA_MAX_KEY_SIZE,
270 .setkey = camellia_set_key,
271 .encrypt = cbc_encrypt,
272 .decrypt = cbc_decrypt,
273 },
274 },
275}
276};
277
278static bool __init sparc64_has_camellia_opcode(void)
279{
280 unsigned long cfr;
281
282 if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
283 return false;
284
285 __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
286 if (!(cfr & CFR_CAMELLIA))
287 return false;
288
289 return true;
290}
291
292static int __init camellia_sparc64_mod_init(void)
293{
294 int i;
295
296 for (i = 0; i < ARRAY_SIZE(algs); i++)
297 INIT_LIST_HEAD(&algs[i].cra_list);
298
299 if (sparc64_has_camellia_opcode()) {
300 pr_info("Using sparc64 camellia opcodes optimized CAMELLIA implementation\n");
301 return crypto_register_algs(algs, ARRAY_SIZE(algs));
302 }
303 pr_info("sparc64 camellia opcodes not available.\n");
304 return -ENODEV;
305}
306
307static void __exit camellia_sparc64_mod_fini(void)
308{
309 crypto_unregister_algs(algs, ARRAY_SIZE(algs));
310}
311
312module_init(camellia_sparc64_mod_init);
313module_exit(camellia_sparc64_mod_fini);
314
315MODULE_LICENSE("GPL");
316MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");
317
318MODULE_ALIAS("aes");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 05:41:17 -0500