1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Glue code for DES encryption optimized for 2 /* Glue code for DES encryption optimized for sparc64 crypto opcodes.
3 * 3 *
4 * Copyright (C) 2012 David S. Miller <davem@d 4 * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
5 */ 5 */
6 6
7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fm 7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8 8
9 #include <linux/crypto.h> 9 #include <linux/crypto.h>
10 #include <linux/init.h> 10 #include <linux/init.h>
11 #include <linux/module.h> 11 #include <linux/module.h>
12 #include <linux/mm.h> 12 #include <linux/mm.h>
13 #include <linux/types.h> 13 #include <linux/types.h>
14 #include <crypto/algapi.h> 14 #include <crypto/algapi.h>
15 #include <crypto/internal/des.h> 15 #include <crypto/internal/des.h>
16 #include <crypto/internal/skcipher.h> 16 #include <crypto/internal/skcipher.h>
17 17
18 #include <asm/fpumacro.h> 18 #include <asm/fpumacro.h>
19 #include <asm/pstate.h> 19 #include <asm/pstate.h>
20 #include <asm/elf.h> 20 #include <asm/elf.h>
21 21
22 #include "opcodes.h" 22 #include "opcodes.h"
23 23
24 struct des_sparc64_ctx { 24 struct des_sparc64_ctx {
25 u64 encrypt_expkey[DES_EXPKEY_WORDS / 25 u64 encrypt_expkey[DES_EXPKEY_WORDS / 2];
26 u64 decrypt_expkey[DES_EXPKEY_WORDS / 26 u64 decrypt_expkey[DES_EXPKEY_WORDS / 2];
27 }; 27 };
28 28
29 struct des3_ede_sparc64_ctx { 29 struct des3_ede_sparc64_ctx {
30 u64 encrypt_expkey[DES3_EDE_EXPKEY_WOR 30 u64 encrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
31 u64 decrypt_expkey[DES3_EDE_EXPKEY_WOR 31 u64 decrypt_expkey[DES3_EDE_EXPKEY_WORDS / 2];
32 }; 32 };
33 33
34 static void encrypt_to_decrypt(u64 *d, const u 34 static void encrypt_to_decrypt(u64 *d, const u64 *e)
35 { 35 {
36 const u64 *s = e + (DES_EXPKEY_WORDS / 36 const u64 *s = e + (DES_EXPKEY_WORDS / 2) - 1;
37 int i; 37 int i;
38 38
39 for (i = 0; i < DES_EXPKEY_WORDS / 2; 39 for (i = 0; i < DES_EXPKEY_WORDS / 2; i++)
40 *d++ = *s--; 40 *d++ = *s--;
41 } 41 }
42 42
43 extern void des_sparc64_key_expand(const u32 * 43 extern void des_sparc64_key_expand(const u32 *input_key, u64 *key);
44 44
45 static int des_set_key(struct crypto_tfm *tfm, 45 static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
46 unsigned int keylen) 46 unsigned int keylen)
47 { 47 {
48 struct des_sparc64_ctx *dctx = crypto_ 48 struct des_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
49 int err; 49 int err;
50 50
51 /* Even though we have special instruc 51 /* Even though we have special instructions for key expansion,
52 * we call des_verify_key() so that we 52 * we call des_verify_key() so that we don't have to write our own
53 * weak key detection code. 53 * weak key detection code.
54 */ 54 */
55 err = crypto_des_verify_key(tfm, key); 55 err = crypto_des_verify_key(tfm, key);
56 if (err) 56 if (err)
57 return err; 57 return err;
58 58
59 des_sparc64_key_expand((const u32 *) k 59 des_sparc64_key_expand((const u32 *) key, &dctx->encrypt_expkey[0]);
60 encrypt_to_decrypt(&dctx->decrypt_expk 60 encrypt_to_decrypt(&dctx->decrypt_expkey[0], &dctx->encrypt_expkey[0]);
61 61
62 return 0; 62 return 0;
63 } 63 }
64 64
65 static int des_set_key_skcipher(struct crypto_ 65 static int des_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key,
66 unsigned int k 66 unsigned int keylen)
67 { 67 {
68 return des_set_key(crypto_skcipher_tfm 68 return des_set_key(crypto_skcipher_tfm(tfm), key, keylen);
69 } 69 }
70 70
71 extern void des_sparc64_crypt(const u64 *key, 71 extern void des_sparc64_crypt(const u64 *key, const u64 *input,
72 u64 *output); 72 u64 *output);
73 73
74 static void sparc_des_encrypt(struct crypto_tf 74 static void sparc_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
75 { 75 {
76 struct des_sparc64_ctx *ctx = crypto_t 76 struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
77 const u64 *K = ctx->encrypt_expkey; 77 const u64 *K = ctx->encrypt_expkey;
78 78
79 des_sparc64_crypt(K, (const u64 *) src 79 des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
80 } 80 }
81 81
82 static void sparc_des_decrypt(struct crypto_tf 82 static void sparc_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
83 { 83 {
84 struct des_sparc64_ctx *ctx = crypto_t 84 struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
85 const u64 *K = ctx->decrypt_expkey; 85 const u64 *K = ctx->decrypt_expkey;
86 86
87 des_sparc64_crypt(K, (const u64 *) src 87 des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
88 } 88 }
89 89
90 extern void des_sparc64_load_keys(const u64 *k 90 extern void des_sparc64_load_keys(const u64 *key);
91 91
92 extern void des_sparc64_ecb_crypt(const u64 *i 92 extern void des_sparc64_ecb_crypt(const u64 *input, u64 *output,
93 unsigned int 93 unsigned int len);
94 94
95 static int __ecb_crypt(struct skcipher_request 95 static int __ecb_crypt(struct skcipher_request *req, bool encrypt)
96 { 96 {
97 struct crypto_skcipher *tfm = crypto_s 97 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
98 const struct des_sparc64_ctx *ctx = cr 98 const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
99 struct skcipher_walk walk; 99 struct skcipher_walk walk;
100 unsigned int nbytes; 100 unsigned int nbytes;
101 int err; 101 int err;
102 102
103 err = skcipher_walk_virt(&walk, req, t 103 err = skcipher_walk_virt(&walk, req, true);
104 if (err) 104 if (err)
105 return err; 105 return err;
106 106
107 if (encrypt) 107 if (encrypt)
108 des_sparc64_load_keys(&ctx->en 108 des_sparc64_load_keys(&ctx->encrypt_expkey[0]);
109 else 109 else
110 des_sparc64_load_keys(&ctx->de 110 des_sparc64_load_keys(&ctx->decrypt_expkey[0]);
111 while ((nbytes = walk.nbytes) != 0) { 111 while ((nbytes = walk.nbytes) != 0) {
112 des_sparc64_ecb_crypt(walk.src 112 des_sparc64_ecb_crypt(walk.src.virt.addr, walk.dst.virt.addr,
113 round_do 113 round_down(nbytes, DES_BLOCK_SIZE));
114 err = skcipher_walk_done(&walk 114 err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
115 } 115 }
116 fprs_write(0); 116 fprs_write(0);
117 return err; 117 return err;
118 } 118 }
119 119
120 static int ecb_encrypt(struct skcipher_request 120 static int ecb_encrypt(struct skcipher_request *req)
121 { 121 {
122 return __ecb_crypt(req, true); 122 return __ecb_crypt(req, true);
123 } 123 }
124 124
125 static int ecb_decrypt(struct skcipher_request 125 static int ecb_decrypt(struct skcipher_request *req)
126 { 126 {
127 return __ecb_crypt(req, false); 127 return __ecb_crypt(req, false);
128 } 128 }
129 129
130 extern void des_sparc64_cbc_encrypt(const u64 130 extern void des_sparc64_cbc_encrypt(const u64 *input, u64 *output,
131 unsigned i 131 unsigned int len, u64 *iv);
132 132
133 extern void des_sparc64_cbc_decrypt(const u64 133 extern void des_sparc64_cbc_decrypt(const u64 *input, u64 *output,
134 unsigned i 134 unsigned int len, u64 *iv);
135 135
136 static int __cbc_crypt(struct skcipher_request 136 static int __cbc_crypt(struct skcipher_request *req, bool encrypt)
137 { 137 {
138 struct crypto_skcipher *tfm = crypto_s 138 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
139 const struct des_sparc64_ctx *ctx = cr 139 const struct des_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
140 struct skcipher_walk walk; 140 struct skcipher_walk walk;
141 unsigned int nbytes; 141 unsigned int nbytes;
142 int err; 142 int err;
143 143
144 err = skcipher_walk_virt(&walk, req, t 144 err = skcipher_walk_virt(&walk, req, true);
145 if (err) 145 if (err)
146 return err; 146 return err;
147 147
148 if (encrypt) 148 if (encrypt)
149 des_sparc64_load_keys(&ctx->en 149 des_sparc64_load_keys(&ctx->encrypt_expkey[0]);
150 else 150 else
151 des_sparc64_load_keys(&ctx->de 151 des_sparc64_load_keys(&ctx->decrypt_expkey[0]);
152 while ((nbytes = walk.nbytes) != 0) { 152 while ((nbytes = walk.nbytes) != 0) {
153 if (encrypt) 153 if (encrypt)
154 des_sparc64_cbc_encryp 154 des_sparc64_cbc_encrypt(walk.src.virt.addr,
155 155 walk.dst.virt.addr,
156 156 round_down(nbytes,
157 157 DES_BLOCK_SIZE),
158 158 walk.iv);
159 else 159 else
160 des_sparc64_cbc_decryp 160 des_sparc64_cbc_decrypt(walk.src.virt.addr,
161 161 walk.dst.virt.addr,
162 162 round_down(nbytes,
163 163 DES_BLOCK_SIZE),
164 164 walk.iv);
165 err = skcipher_walk_done(&walk 165 err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
166 } 166 }
167 fprs_write(0); 167 fprs_write(0);
168 return err; 168 return err;
169 } 169 }
170 170
171 static int cbc_encrypt(struct skcipher_request 171 static int cbc_encrypt(struct skcipher_request *req)
172 { 172 {
173 return __cbc_crypt(req, true); 173 return __cbc_crypt(req, true);
174 } 174 }
175 175
176 static int cbc_decrypt(struct skcipher_request 176 static int cbc_decrypt(struct skcipher_request *req)
177 { 177 {
178 return __cbc_crypt(req, false); 178 return __cbc_crypt(req, false);
179 } 179 }
180 180
181 static int des3_ede_set_key(struct crypto_tfm 181 static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
182 unsigned int keyle 182 unsigned int keylen)
183 { 183 {
184 struct des3_ede_sparc64_ctx *dctx = cr 184 struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
185 u64 k1[DES_EXPKEY_WORDS / 2]; 185 u64 k1[DES_EXPKEY_WORDS / 2];
186 u64 k2[DES_EXPKEY_WORDS / 2]; 186 u64 k2[DES_EXPKEY_WORDS / 2];
187 u64 k3[DES_EXPKEY_WORDS / 2]; 187 u64 k3[DES_EXPKEY_WORDS / 2];
188 int err; 188 int err;
189 189
190 err = crypto_des3_ede_verify_key(tfm, 190 err = crypto_des3_ede_verify_key(tfm, key);
191 if (err) 191 if (err)
192 return err; 192 return err;
193 193
194 des_sparc64_key_expand((const u32 *)ke 194 des_sparc64_key_expand((const u32 *)key, k1);
195 key += DES_KEY_SIZE; 195 key += DES_KEY_SIZE;
196 des_sparc64_key_expand((const u32 *)ke 196 des_sparc64_key_expand((const u32 *)key, k2);
197 key += DES_KEY_SIZE; 197 key += DES_KEY_SIZE;
198 des_sparc64_key_expand((const u32 *)ke 198 des_sparc64_key_expand((const u32 *)key, k3);
199 199
200 memcpy(&dctx->encrypt_expkey[0], &k1[0 200 memcpy(&dctx->encrypt_expkey[0], &k1[0], sizeof(k1));
201 encrypt_to_decrypt(&dctx->encrypt_expk 201 encrypt_to_decrypt(&dctx->encrypt_expkey[DES_EXPKEY_WORDS / 2], &k2[0]);
202 memcpy(&dctx->encrypt_expkey[(DES_EXPK 202 memcpy(&dctx->encrypt_expkey[(DES_EXPKEY_WORDS / 2) * 2],
203 &k3[0], sizeof(k3)); 203 &k3[0], sizeof(k3));
204 204
205 encrypt_to_decrypt(&dctx->decrypt_expk 205 encrypt_to_decrypt(&dctx->decrypt_expkey[0], &k3[0]);
206 memcpy(&dctx->decrypt_expkey[DES_EXPKE 206 memcpy(&dctx->decrypt_expkey[DES_EXPKEY_WORDS / 2],
207 &k2[0], sizeof(k2)); 207 &k2[0], sizeof(k2));
208 encrypt_to_decrypt(&dctx->decrypt_expk 208 encrypt_to_decrypt(&dctx->decrypt_expkey[(DES_EXPKEY_WORDS / 2) * 2],
209 &k1[0]); 209 &k1[0]);
210 210
211 return 0; 211 return 0;
212 } 212 }
213 213
214 static int des3_ede_set_key_skcipher(struct cr 214 static int des3_ede_set_key_skcipher(struct crypto_skcipher *tfm, const u8 *key,
215 unsigned 215 unsigned int keylen)
216 { 216 {
217 return des3_ede_set_key(crypto_skciphe 217 return des3_ede_set_key(crypto_skcipher_tfm(tfm), key, keylen);
218 } 218 }
219 219
220 extern void des3_ede_sparc64_crypt(const u64 * 220 extern void des3_ede_sparc64_crypt(const u64 *key, const u64 *input,
221 u64 *output 221 u64 *output);
222 222
223 static void sparc_des3_ede_encrypt(struct cryp 223 static void sparc_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
224 { 224 {
225 struct des3_ede_sparc64_ctx *ctx = cry 225 struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
226 const u64 *K = ctx->encrypt_expkey; 226 const u64 *K = ctx->encrypt_expkey;
227 227
228 des3_ede_sparc64_crypt(K, (const u64 * 228 des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
229 } 229 }
230 230
231 static void sparc_des3_ede_decrypt(struct cryp 231 static void sparc_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
232 { 232 {
233 struct des3_ede_sparc64_ctx *ctx = cry 233 struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
234 const u64 *K = ctx->decrypt_expkey; 234 const u64 *K = ctx->decrypt_expkey;
235 235
236 des3_ede_sparc64_crypt(K, (const u64 * 236 des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
237 } 237 }
238 238
239 extern void des3_ede_sparc64_load_keys(const u 239 extern void des3_ede_sparc64_load_keys(const u64 *key);
240 240
241 extern void des3_ede_sparc64_ecb_crypt(const u 241 extern void des3_ede_sparc64_ecb_crypt(const u64 *expkey, const u64 *input,
242 u64 *ou 242 u64 *output, unsigned int len);
243 243
244 static int __ecb3_crypt(struct skcipher_reques 244 static int __ecb3_crypt(struct skcipher_request *req, bool encrypt)
245 { 245 {
246 struct crypto_skcipher *tfm = crypto_s 246 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
247 const struct des3_ede_sparc64_ctx *ctx 247 const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
248 struct skcipher_walk walk; 248 struct skcipher_walk walk;
249 const u64 *K; 249 const u64 *K;
250 unsigned int nbytes; 250 unsigned int nbytes;
251 int err; 251 int err;
252 252
253 err = skcipher_walk_virt(&walk, req, t 253 err = skcipher_walk_virt(&walk, req, true);
254 if (err) 254 if (err)
255 return err; 255 return err;
256 256
257 if (encrypt) 257 if (encrypt)
258 K = &ctx->encrypt_expkey[0]; 258 K = &ctx->encrypt_expkey[0];
259 else 259 else
260 K = &ctx->decrypt_expkey[0]; 260 K = &ctx->decrypt_expkey[0];
261 des3_ede_sparc64_load_keys(K); 261 des3_ede_sparc64_load_keys(K);
262 while ((nbytes = walk.nbytes) != 0) { 262 while ((nbytes = walk.nbytes) != 0) {
263 des3_ede_sparc64_ecb_crypt(K, 263 des3_ede_sparc64_ecb_crypt(K, walk.src.virt.addr,
264 wal 264 walk.dst.virt.addr,
265 rou 265 round_down(nbytes, DES_BLOCK_SIZE));
266 err = skcipher_walk_done(&walk 266 err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
267 } 267 }
268 fprs_write(0); 268 fprs_write(0);
269 return err; 269 return err;
270 } 270 }
271 271
272 static int ecb3_encrypt(struct skcipher_reques 272 static int ecb3_encrypt(struct skcipher_request *req)
273 { 273 {
274 return __ecb3_crypt(req, true); 274 return __ecb3_crypt(req, true);
275 } 275 }
276 276
277 static int ecb3_decrypt(struct skcipher_reques 277 static int ecb3_decrypt(struct skcipher_request *req)
278 { 278 {
279 return __ecb3_crypt(req, false); 279 return __ecb3_crypt(req, false);
280 } 280 }
281 281
282 extern void des3_ede_sparc64_cbc_encrypt(const 282 extern void des3_ede_sparc64_cbc_encrypt(const u64 *expkey, const u64 *input,
283 u64 * 283 u64 *output, unsigned int len,
284 u64 * 284 u64 *iv);
285 285
286 extern void des3_ede_sparc64_cbc_decrypt(const 286 extern void des3_ede_sparc64_cbc_decrypt(const u64 *expkey, const u64 *input,
287 u64 * 287 u64 *output, unsigned int len,
288 u64 * 288 u64 *iv);
289 289
290 static int __cbc3_crypt(struct skcipher_reques 290 static int __cbc3_crypt(struct skcipher_request *req, bool encrypt)
291 { 291 {
292 struct crypto_skcipher *tfm = crypto_s 292 struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
293 const struct des3_ede_sparc64_ctx *ctx 293 const struct des3_ede_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
294 struct skcipher_walk walk; 294 struct skcipher_walk walk;
295 const u64 *K; 295 const u64 *K;
296 unsigned int nbytes; 296 unsigned int nbytes;
297 int err; 297 int err;
298 298
299 err = skcipher_walk_virt(&walk, req, t 299 err = skcipher_walk_virt(&walk, req, true);
300 if (err) 300 if (err)
301 return err; 301 return err;
302 302
303 if (encrypt) 303 if (encrypt)
304 K = &ctx->encrypt_expkey[0]; 304 K = &ctx->encrypt_expkey[0];
305 else 305 else
306 K = &ctx->decrypt_expkey[0]; 306 K = &ctx->decrypt_expkey[0];
307 des3_ede_sparc64_load_keys(K); 307 des3_ede_sparc64_load_keys(K);
308 while ((nbytes = walk.nbytes) != 0) { 308 while ((nbytes = walk.nbytes) != 0) {
309 if (encrypt) 309 if (encrypt)
310 des3_ede_sparc64_cbc_e 310 des3_ede_sparc64_cbc_encrypt(K, walk.src.virt.addr,
311 311 walk.dst.virt.addr,
312 312 round_down(nbytes,
313 313 DES_BLOCK_SIZE),
314 314 walk.iv);
315 else 315 else
316 des3_ede_sparc64_cbc_d 316 des3_ede_sparc64_cbc_decrypt(K, walk.src.virt.addr,
317 317 walk.dst.virt.addr,
318 318 round_down(nbytes,
319 319 DES_BLOCK_SIZE),
320 320 walk.iv);
321 err = skcipher_walk_done(&walk 321 err = skcipher_walk_done(&walk, nbytes % DES_BLOCK_SIZE);
322 } 322 }
323 fprs_write(0); 323 fprs_write(0);
324 return err; 324 return err;
325 } 325 }
326 326
327 static int cbc3_encrypt(struct skcipher_reques 327 static int cbc3_encrypt(struct skcipher_request *req)
328 { 328 {
329 return __cbc3_crypt(req, true); 329 return __cbc3_crypt(req, true);
330 } 330 }
331 331
332 static int cbc3_decrypt(struct skcipher_reques 332 static int cbc3_decrypt(struct skcipher_request *req)
333 { 333 {
334 return __cbc3_crypt(req, false); 334 return __cbc3_crypt(req, false);
335 } 335 }
336 336
337 static struct crypto_alg cipher_algs[] = { 337 static struct crypto_alg cipher_algs[] = {
338 { 338 {
339 .cra_name = "des 339 .cra_name = "des",
340 .cra_driver_name = "des 340 .cra_driver_name = "des-sparc64",
341 .cra_priority = SPAR 341 .cra_priority = SPARC_CR_OPCODE_PRIORITY,
342 .cra_flags = CRYP 342 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
343 .cra_blocksize = DES_ 343 .cra_blocksize = DES_BLOCK_SIZE,
344 .cra_ctxsize = size 344 .cra_ctxsize = sizeof(struct des_sparc64_ctx),
345 .cra_alignmask = 7, 345 .cra_alignmask = 7,
346 .cra_module = THIS 346 .cra_module = THIS_MODULE,
347 .cra_u = { 347 .cra_u = {
348 .cipher = { 348 .cipher = {
349 .cia_min_keysi 349 .cia_min_keysize = DES_KEY_SIZE,
350 .cia_max_keysi 350 .cia_max_keysize = DES_KEY_SIZE,
351 .cia_setkey 351 .cia_setkey = des_set_key,
352 .cia_encrypt 352 .cia_encrypt = sparc_des_encrypt,
353 .cia_decrypt 353 .cia_decrypt = sparc_des_decrypt
354 } 354 }
355 } 355 }
356 }, { 356 }, {
357 .cra_name = "des 357 .cra_name = "des3_ede",
358 .cra_driver_name = "des 358 .cra_driver_name = "des3_ede-sparc64",
359 .cra_priority = SPAR 359 .cra_priority = SPARC_CR_OPCODE_PRIORITY,
360 .cra_flags = CRYP 360 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
361 .cra_blocksize = DES3 361 .cra_blocksize = DES3_EDE_BLOCK_SIZE,
362 .cra_ctxsize = size 362 .cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx),
363 .cra_alignmask = 7, 363 .cra_alignmask = 7,
364 .cra_module = THIS 364 .cra_module = THIS_MODULE,
365 .cra_u = { 365 .cra_u = {
366 .cipher = { 366 .cipher = {
367 .cia_min_keysi 367 .cia_min_keysize = DES3_EDE_KEY_SIZE,
368 .cia_max_keysi 368 .cia_max_keysize = DES3_EDE_KEY_SIZE,
369 .cia_setkey 369 .cia_setkey = des3_ede_set_key,
370 .cia_encrypt 370 .cia_encrypt = sparc_des3_ede_encrypt,
371 .cia_decrypt 371 .cia_decrypt = sparc_des3_ede_decrypt
372 } 372 }
373 } 373 }
374 } 374 }
375 }; 375 };
376 376
377 static struct skcipher_alg skcipher_algs[] = { 377 static struct skcipher_alg skcipher_algs[] = {
378 { 378 {
379 .base.cra_name = "ecb 379 .base.cra_name = "ecb(des)",
380 .base.cra_driver_name = "ecb 380 .base.cra_driver_name = "ecb-des-sparc64",
381 .base.cra_priority = SPAR 381 .base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
382 .base.cra_blocksize = DES_ 382 .base.cra_blocksize = DES_BLOCK_SIZE,
383 .base.cra_ctxsize = size 383 .base.cra_ctxsize = sizeof(struct des_sparc64_ctx),
384 .base.cra_alignmask = 7, 384 .base.cra_alignmask = 7,
385 .base.cra_module = THIS 385 .base.cra_module = THIS_MODULE,
386 .min_keysize = DES_ 386 .min_keysize = DES_KEY_SIZE,
387 .max_keysize = DES_ 387 .max_keysize = DES_KEY_SIZE,
388 .setkey = des_ 388 .setkey = des_set_key_skcipher,
389 .encrypt = ecb_ 389 .encrypt = ecb_encrypt,
390 .decrypt = ecb_ 390 .decrypt = ecb_decrypt,
391 }, { 391 }, {
392 .base.cra_name = "cbc 392 .base.cra_name = "cbc(des)",
393 .base.cra_driver_name = "cbc 393 .base.cra_driver_name = "cbc-des-sparc64",
394 .base.cra_priority = SPAR 394 .base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
395 .base.cra_blocksize = DES_ 395 .base.cra_blocksize = DES_BLOCK_SIZE,
396 .base.cra_ctxsize = size 396 .base.cra_ctxsize = sizeof(struct des_sparc64_ctx),
397 .base.cra_alignmask = 7, 397 .base.cra_alignmask = 7,
398 .base.cra_module = THIS 398 .base.cra_module = THIS_MODULE,
399 .min_keysize = DES_ 399 .min_keysize = DES_KEY_SIZE,
400 .max_keysize = DES_ 400 .max_keysize = DES_KEY_SIZE,
401 .ivsize = DES_ 401 .ivsize = DES_BLOCK_SIZE,
402 .setkey = des_ 402 .setkey = des_set_key_skcipher,
403 .encrypt = cbc_ 403 .encrypt = cbc_encrypt,
404 .decrypt = cbc_ 404 .decrypt = cbc_decrypt,
405 }, { 405 }, {
406 .base.cra_name = "ecb 406 .base.cra_name = "ecb(des3_ede)",
407 .base.cra_driver_name = "ecb 407 .base.cra_driver_name = "ecb-des3_ede-sparc64",
408 .base.cra_priority = SPAR 408 .base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
409 .base.cra_blocksize = DES3 409 .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
410 .base.cra_ctxsize = size 410 .base.cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx),
411 .base.cra_alignmask = 7, 411 .base.cra_alignmask = 7,
412 .base.cra_module = THIS 412 .base.cra_module = THIS_MODULE,
413 .min_keysize = DES3 413 .min_keysize = DES3_EDE_KEY_SIZE,
414 .max_keysize = DES3 414 .max_keysize = DES3_EDE_KEY_SIZE,
415 .setkey = des3 415 .setkey = des3_ede_set_key_skcipher,
416 .encrypt = ecb3 416 .encrypt = ecb3_encrypt,
417 .decrypt = ecb3 417 .decrypt = ecb3_decrypt,
418 }, { 418 }, {
419 .base.cra_name = "cbc 419 .base.cra_name = "cbc(des3_ede)",
420 .base.cra_driver_name = "cbc 420 .base.cra_driver_name = "cbc-des3_ede-sparc64",
421 .base.cra_priority = SPAR 421 .base.cra_priority = SPARC_CR_OPCODE_PRIORITY,
422 .base.cra_blocksize = DES3 422 .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
423 .base.cra_ctxsize = size 423 .base.cra_ctxsize = sizeof(struct des3_ede_sparc64_ctx),
424 .base.cra_alignmask = 7, 424 .base.cra_alignmask = 7,
425 .base.cra_module = THIS 425 .base.cra_module = THIS_MODULE,
426 .min_keysize = DES3 426 .min_keysize = DES3_EDE_KEY_SIZE,
427 .max_keysize = DES3 427 .max_keysize = DES3_EDE_KEY_SIZE,
428 .ivsize = DES3 428 .ivsize = DES3_EDE_BLOCK_SIZE,
429 .setkey = des3 429 .setkey = des3_ede_set_key_skcipher,
430 .encrypt = cbc3 430 .encrypt = cbc3_encrypt,
431 .decrypt = cbc3 431 .decrypt = cbc3_decrypt,
432 } 432 }
433 }; 433 };
434 434
435 static bool __init sparc64_has_des_opcode(void 435 static bool __init sparc64_has_des_opcode(void)
436 { 436 {
437 unsigned long cfr; 437 unsigned long cfr;
438 438
439 if (!(sparc64_elf_hwcap & HWCAP_SPARC_ 439 if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
440 return false; 440 return false;
441 441
442 __asm__ __volatile__("rd %%asr26, %0" 442 __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
443 if (!(cfr & CFR_DES)) 443 if (!(cfr & CFR_DES))
444 return false; 444 return false;
445 445
446 return true; 446 return true;
447 } 447 }
448 448
449 static int __init des_sparc64_mod_init(void) 449 static int __init des_sparc64_mod_init(void)
450 { 450 {
451 int err; 451 int err;
452 452
453 if (!sparc64_has_des_opcode()) { 453 if (!sparc64_has_des_opcode()) {
454 pr_info("sparc64 des opcodes n 454 pr_info("sparc64 des opcodes not available.\n");
455 return -ENODEV; 455 return -ENODEV;
456 } 456 }
457 pr_info("Using sparc64 des opcodes opt 457 pr_info("Using sparc64 des opcodes optimized DES implementation\n");
458 err = crypto_register_algs(cipher_algs 458 err = crypto_register_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
459 if (err) 459 if (err)
460 return err; 460 return err;
461 err = crypto_register_skciphers(skciph 461 err = crypto_register_skciphers(skcipher_algs,
462 ARRAY_ 462 ARRAY_SIZE(skcipher_algs));
463 if (err) 463 if (err)
464 crypto_unregister_algs(cipher_ 464 crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
465 return err; 465 return err;
466 } 466 }
467 467
468 static void __exit des_sparc64_mod_fini(void) 468 static void __exit des_sparc64_mod_fini(void)
469 { 469 {
470 crypto_unregister_algs(cipher_algs, AR 470 crypto_unregister_algs(cipher_algs, ARRAY_SIZE(cipher_algs));
471 crypto_unregister_skciphers(skcipher_a 471 crypto_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
472 } 472 }
473 473
474 module_init(des_sparc64_mod_init); 474 module_init(des_sparc64_mod_init);
475 module_exit(des_sparc64_mod_fini); 475 module_exit(des_sparc64_mod_fini);
476 476
477 MODULE_LICENSE("GPL"); 477 MODULE_LICENSE("GPL");
478 MODULE_DESCRIPTION("DES & Triple DES EDE Ciphe 478 MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms, sparc64 des opcode accelerated");
479 479
480 MODULE_ALIAS_CRYPTO("des"); 480 MODULE_ALIAS_CRYPTO("des");
481 MODULE_ALIAS_CRYPTO("des3_ede"); 481 MODULE_ALIAS_CRYPTO("des3_ede");
482 482
483 #include "crop_devid.c" 483 #include "crop_devid.c"
484 484
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