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v6.2
  1// SPDX-License-Identifier: GPL-2.0-only
  2/* Glue code for CAMELLIA encryption optimized for sparc64 crypto opcodes.
  3 *
  4 * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
  5 */
  6
  7#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
  8
  9#include <linux/crypto.h>
 10#include <linux/init.h>
 11#include <linux/module.h>
 12#include <linux/mm.h>
 13#include <linux/types.h>
 14#include <crypto/algapi.h>
 15#include <crypto/internal/skcipher.h>
 16
 17#include <asm/fpumacro.h>
 18#include <asm/pstate.h>
 19#include <asm/elf.h>
 20
 21#include "opcodes.h"
 22
 23#define CAMELLIA_MIN_KEY_SIZE        16
 24#define CAMELLIA_MAX_KEY_SIZE        32
 25#define CAMELLIA_BLOCK_SIZE          16
 26#define CAMELLIA_TABLE_BYTE_LEN     272
 27
 28struct camellia_sparc64_ctx {
 29	u64 encrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
 30	u64 decrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
 31	int key_len;
 32};
 33
 34extern void camellia_sparc64_key_expand(const u32 *in_key, u64 *encrypt_key,
 35					unsigned int key_len, u64 *decrypt_key);
 36
 37static int camellia_set_key(struct crypto_tfm *tfm, const u8 *_in_key,
 38			    unsigned int key_len)
 39{
 40	struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
 41	const u32 *in_key = (const u32 *) _in_key;
 
 42
 43	if (key_len != 16 && key_len != 24 && key_len != 32)
 
 44		return -EINVAL;
 
 45
 46	ctx->key_len = key_len;
 47
 48	camellia_sparc64_key_expand(in_key, &ctx->encrypt_key[0],
 49				    key_len, &ctx->decrypt_key[0]);
 50	return 0;
 51}
 52
 53static int camellia_set_key_skcipher(struct crypto_skcipher *tfm,
 54				     const u8 *in_key, unsigned int key_len)
 55{
 56	return camellia_set_key(crypto_skcipher_tfm(tfm), in_key, key_len);
 57}
 58
 59extern void camellia_sparc64_crypt(const u64 *key, const u32 *input,
 60				   u32 *output, unsigned int key_len);
 61
 62static void camellia_encrypt(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->encrypt_key[0],
 67			       (const u32 *) src,
 68			       (u32 *) dst, ctx->key_len);
 69}
 70
 71static void camellia_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 72{
 73	struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
 74
 75	camellia_sparc64_crypt(&ctx->decrypt_key[0],
 76			       (const u32 *) src,
 77			       (u32 *) dst, ctx->key_len);
 78}
 79
 80extern void camellia_sparc64_load_keys(const u64 *key, unsigned int key_len);
 81
 82typedef void ecb_crypt_op(const u64 *input, u64 *output, unsigned int len,
 83			  const u64 *key);
 84
 85extern ecb_crypt_op camellia_sparc64_ecb_crypt_3_grand_rounds;
 86extern ecb_crypt_op camellia_sparc64_ecb_crypt_4_grand_rounds;
 87
 88static int __ecb_crypt(struct skcipher_request *req, bool encrypt)
 
 
 
 
 89{
 90	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 91	const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
 92	struct skcipher_walk walk;
 93	ecb_crypt_op *op;
 94	const u64 *key;
 95	unsigned int nbytes;
 96	int err;
 97
 98	op = camellia_sparc64_ecb_crypt_3_grand_rounds;
 99	if (ctx->key_len != 16)
100		op = camellia_sparc64_ecb_crypt_4_grand_rounds;
101
102	err = skcipher_walk_virt(&walk, req, true);
103	if (err)
104		return err;
105
106	if (encrypt)
107		key = &ctx->encrypt_key[0];
108	else
109		key = &ctx->decrypt_key[0];
110	camellia_sparc64_load_keys(key, ctx->key_len);
111	while ((nbytes = walk.nbytes) != 0) {
112		op(walk.src.virt.addr, walk.dst.virt.addr,
113		   round_down(nbytes, CAMELLIA_BLOCK_SIZE), key);
114		err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
 
 
 
 
 
 
 
 
 
115	}
116	fprs_write(0);
117	return err;
118}
119
120static int ecb_encrypt(struct skcipher_request *req)
 
 
121{
122	return __ecb_crypt(req, true);
123}
124
125static int ecb_decrypt(struct skcipher_request *req)
 
 
126{
127	return __ecb_crypt(req, false);
128}
129
130typedef void cbc_crypt_op(const u64 *input, u64 *output, unsigned int len,
131			  const u64 *key, u64 *iv);
132
133extern cbc_crypt_op camellia_sparc64_cbc_encrypt_3_grand_rounds;
134extern cbc_crypt_op camellia_sparc64_cbc_encrypt_4_grand_rounds;
135extern cbc_crypt_op camellia_sparc64_cbc_decrypt_3_grand_rounds;
136extern cbc_crypt_op camellia_sparc64_cbc_decrypt_4_grand_rounds;
137
138static int cbc_encrypt(struct skcipher_request *req)
 
 
139{
140	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
141	const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
142	struct skcipher_walk walk;
143	cbc_crypt_op *op;
144	const u64 *key;
145	unsigned int nbytes;
146	int err;
147
148	op = camellia_sparc64_cbc_encrypt_3_grand_rounds;
149	if (ctx->key_len != 16)
150		op = camellia_sparc64_cbc_encrypt_4_grand_rounds;
151
152	err = skcipher_walk_virt(&walk, req, true);
153	if (err)
154		return err;
155
156	key = &ctx->encrypt_key[0];
157	camellia_sparc64_load_keys(key, ctx->key_len);
158	while ((nbytes = walk.nbytes) != 0) {
159		op(walk.src.virt.addr, walk.dst.virt.addr,
160		   round_down(nbytes, CAMELLIA_BLOCK_SIZE), key, walk.iv);
161		err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
 
 
 
 
 
 
 
 
 
 
162	}
163	fprs_write(0);
164	return err;
165}
166
167static int cbc_decrypt(struct skcipher_request *req)
 
 
168{
169	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
170	const struct camellia_sparc64_ctx *ctx = crypto_skcipher_ctx(tfm);
171	struct skcipher_walk walk;
172	cbc_crypt_op *op;
173	const u64 *key;
174	unsigned int nbytes;
175	int err;
176
177	op = camellia_sparc64_cbc_decrypt_3_grand_rounds;
178	if (ctx->key_len != 16)
179		op = camellia_sparc64_cbc_decrypt_4_grand_rounds;
180
181	err = skcipher_walk_virt(&walk, req, true);
182	if (err)
183		return err;
184
185	key = &ctx->decrypt_key[0];
186	camellia_sparc64_load_keys(key, ctx->key_len);
187	while ((nbytes = walk.nbytes) != 0) {
188		op(walk.src.virt.addr, walk.dst.virt.addr,
189		   round_down(nbytes, CAMELLIA_BLOCK_SIZE), key, walk.iv);
190		err = skcipher_walk_done(&walk, nbytes % CAMELLIA_BLOCK_SIZE);
 
 
 
 
 
 
 
 
 
 
191	}
192	fprs_write(0);
193	return err;
194}
195
196static struct crypto_alg cipher_alg = {
197	.cra_name		= "camellia",
198	.cra_driver_name	= "camellia-sparc64",
199	.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
200	.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
201	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
202	.cra_ctxsize		= sizeof(struct camellia_sparc64_ctx),
203	.cra_alignmask		= 3,
204	.cra_module		= THIS_MODULE,
205	.cra_u	= {
206		.cipher	= {
207			.cia_min_keysize	= CAMELLIA_MIN_KEY_SIZE,
208			.cia_max_keysize	= CAMELLIA_MAX_KEY_SIZE,
209			.cia_setkey		= camellia_set_key,
210			.cia_encrypt		= camellia_encrypt,
211			.cia_decrypt		= camellia_decrypt
212		}
213	}
214};
215
216static struct skcipher_alg skcipher_algs[] = {
217	{
218		.base.cra_name		= "ecb(camellia)",
219		.base.cra_driver_name	= "ecb-camellia-sparc64",
220		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
221		.base.cra_blocksize	= CAMELLIA_BLOCK_SIZE,
222		.base.cra_ctxsize	= sizeof(struct camellia_sparc64_ctx),
223		.base.cra_alignmask	= 7,
224		.base.cra_module	= THIS_MODULE,
225		.min_keysize		= CAMELLIA_MIN_KEY_SIZE,
226		.max_keysize		= CAMELLIA_MAX_KEY_SIZE,
227		.setkey			= camellia_set_key_skcipher,
228		.encrypt		= ecb_encrypt,
229		.decrypt		= ecb_decrypt,
230	}, {
231		.base.cra_name		= "cbc(camellia)",
232		.base.cra_driver_name	= "cbc-camellia-sparc64",
233		.base.cra_priority	= SPARC_CR_OPCODE_PRIORITY,
234		.base.cra_blocksize	= CAMELLIA_BLOCK_SIZE,
235		.base.cra_ctxsize	= sizeof(struct camellia_sparc64_ctx),
236		.base.cra_alignmask	= 7,
237		.base.cra_module	= THIS_MODULE,
238		.min_keysize		= CAMELLIA_MIN_KEY_SIZE,
239		.max_keysize		= CAMELLIA_MAX_KEY_SIZE,
240		.ivsize			= CAMELLIA_BLOCK_SIZE,
241		.setkey			= camellia_set_key_skcipher,
242		.encrypt		= cbc_encrypt,
243		.decrypt		= cbc_decrypt,
244	}
 
 
 
 
 
 
 
 
 
245};
246
247static bool __init sparc64_has_camellia_opcode(void)
248{
249	unsigned long cfr;
250
251	if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
252		return false;
253
254	__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
255	if (!(cfr & CFR_CAMELLIA))
256		return false;
257
258	return true;
259}
260
261static int __init camellia_sparc64_mod_init(void)
262{
263	int err;
 
 
 
264
265	if (!sparc64_has_camellia_opcode()) {
266		pr_info("sparc64 camellia opcodes not available.\n");
267		return -ENODEV;
268	}
269	pr_info("Using sparc64 camellia opcodes optimized CAMELLIA implementation\n");
270	err = crypto_register_alg(&cipher_alg);
271	if (err)
272		return err;
273	err = crypto_register_skciphers(skcipher_algs,
274					ARRAY_SIZE(skcipher_algs));
275	if (err)
276		crypto_unregister_alg(&cipher_alg);
277	return err;
278}
279
280static void __exit camellia_sparc64_mod_fini(void)
281{
282	crypto_unregister_alg(&cipher_alg);
283	crypto_unregister_skciphers(skcipher_algs, ARRAY_SIZE(skcipher_algs));
284}
285
286module_init(camellia_sparc64_mod_init);
287module_exit(camellia_sparc64_mod_fini);
288
289MODULE_LICENSE("GPL");
290MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");
291
292MODULE_ALIAS_CRYPTO("camellia");
293
294#include "crop_devid.c"
v4.17
 
  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#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
  7
  8#include <linux/crypto.h>
  9#include <linux/init.h>
 10#include <linux/module.h>
 11#include <linux/mm.h>
 12#include <linux/types.h>
 13#include <crypto/algapi.h>
 
 14
 15#include <asm/fpumacro.h>
 16#include <asm/pstate.h>
 17#include <asm/elf.h>
 18
 19#include "opcodes.h"
 20
 21#define CAMELLIA_MIN_KEY_SIZE        16
 22#define CAMELLIA_MAX_KEY_SIZE        32
 23#define CAMELLIA_BLOCK_SIZE          16
 24#define CAMELLIA_TABLE_BYTE_LEN     272
 25
 26struct camellia_sparc64_ctx {
 27	u64 encrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
 28	u64 decrypt_key[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
 29	int key_len;
 30};
 31
 32extern void camellia_sparc64_key_expand(const u32 *in_key, u64 *encrypt_key,
 33					unsigned int key_len, u64 *decrypt_key);
 34
 35static int camellia_set_key(struct crypto_tfm *tfm, const u8 *_in_key,
 36			    unsigned int key_len)
 37{
 38	struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
 39	const u32 *in_key = (const u32 *) _in_key;
 40	u32 *flags = &tfm->crt_flags;
 41
 42	if (key_len != 16 && key_len != 24 && key_len != 32) {
 43		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
 44		return -EINVAL;
 45	}
 46
 47	ctx->key_len = key_len;
 48
 49	camellia_sparc64_key_expand(in_key, &ctx->encrypt_key[0],
 50				    key_len, &ctx->decrypt_key[0]);
 51	return 0;
 52}
 53
 
 
 
 
 
 
 54extern void camellia_sparc64_crypt(const u64 *key, const u32 *input,
 55				   u32 *output, unsigned int key_len);
 56
 57static void camellia_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 58{
 59	struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
 60
 61	camellia_sparc64_crypt(&ctx->encrypt_key[0],
 62			       (const u32 *) src,
 63			       (u32 *) dst, ctx->key_len);
 64}
 65
 66static void camellia_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 67{
 68	struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
 69
 70	camellia_sparc64_crypt(&ctx->decrypt_key[0],
 71			       (const u32 *) src,
 72			       (u32 *) dst, ctx->key_len);
 73}
 74
 75extern void camellia_sparc64_load_keys(const u64 *key, unsigned int key_len);
 76
 77typedef void ecb_crypt_op(const u64 *input, u64 *output, unsigned int len,
 78			  const u64 *key);
 79
 80extern ecb_crypt_op camellia_sparc64_ecb_crypt_3_grand_rounds;
 81extern ecb_crypt_op camellia_sparc64_ecb_crypt_4_grand_rounds;
 82
 83#define CAMELLIA_BLOCK_MASK	(~(CAMELLIA_BLOCK_SIZE - 1))
 84
 85static int __ecb_crypt(struct blkcipher_desc *desc,
 86		       struct scatterlist *dst, struct scatterlist *src,
 87		       unsigned int nbytes, bool encrypt)
 88{
 89	struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
 90	struct blkcipher_walk walk;
 
 91	ecb_crypt_op *op;
 92	const u64 *key;
 
 93	int err;
 94
 95	op = camellia_sparc64_ecb_crypt_3_grand_rounds;
 96	if (ctx->key_len != 16)
 97		op = camellia_sparc64_ecb_crypt_4_grand_rounds;
 98
 99	blkcipher_walk_init(&walk, dst, src, nbytes);
100	err = blkcipher_walk_virt(desc, &walk);
101	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
102
103	if (encrypt)
104		key = &ctx->encrypt_key[0];
105	else
106		key = &ctx->decrypt_key[0];
107	camellia_sparc64_load_keys(key, ctx->key_len);
108	while ((nbytes = walk.nbytes)) {
109		unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
110
111		if (likely(block_len)) {
112			const u64 *src64;
113			u64 *dst64;
114
115			src64 = (const u64 *)walk.src.virt.addr;
116			dst64 = (u64 *) walk.dst.virt.addr;
117			op(src64, dst64, block_len, key);
118		}
119		nbytes &= CAMELLIA_BLOCK_SIZE - 1;
120		err = blkcipher_walk_done(desc, &walk, nbytes);
121	}
122	fprs_write(0);
123	return err;
124}
125
126static int ecb_encrypt(struct blkcipher_desc *desc,
127		       struct scatterlist *dst, struct scatterlist *src,
128		       unsigned int nbytes)
129{
130	return __ecb_crypt(desc, dst, src, nbytes, true);
131}
132
133static int ecb_decrypt(struct blkcipher_desc *desc,
134		       struct scatterlist *dst, struct scatterlist *src,
135		       unsigned int nbytes)
136{
137	return __ecb_crypt(desc, dst, src, nbytes, false);
138}
139
140typedef void cbc_crypt_op(const u64 *input, u64 *output, unsigned int len,
141			  const u64 *key, u64 *iv);
142
143extern cbc_crypt_op camellia_sparc64_cbc_encrypt_3_grand_rounds;
144extern cbc_crypt_op camellia_sparc64_cbc_encrypt_4_grand_rounds;
145extern cbc_crypt_op camellia_sparc64_cbc_decrypt_3_grand_rounds;
146extern cbc_crypt_op camellia_sparc64_cbc_decrypt_4_grand_rounds;
147
148static int cbc_encrypt(struct blkcipher_desc *desc,
149		       struct scatterlist *dst, struct scatterlist *src,
150		       unsigned int nbytes)
151{
152	struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
153	struct blkcipher_walk walk;
 
154	cbc_crypt_op *op;
155	const u64 *key;
 
156	int err;
157
158	op = camellia_sparc64_cbc_encrypt_3_grand_rounds;
159	if (ctx->key_len != 16)
160		op = camellia_sparc64_cbc_encrypt_4_grand_rounds;
161
162	blkcipher_walk_init(&walk, dst, src, nbytes);
163	err = blkcipher_walk_virt(desc, &walk);
164	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
165
166	key = &ctx->encrypt_key[0];
167	camellia_sparc64_load_keys(key, ctx->key_len);
168	while ((nbytes = walk.nbytes)) {
169		unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
170
171		if (likely(block_len)) {
172			const u64 *src64;
173			u64 *dst64;
174
175			src64 = (const u64 *)walk.src.virt.addr;
176			dst64 = (u64 *) walk.dst.virt.addr;
177			op(src64, dst64, block_len, key,
178			   (u64 *) walk.iv);
179		}
180		nbytes &= CAMELLIA_BLOCK_SIZE - 1;
181		err = blkcipher_walk_done(desc, &walk, nbytes);
182	}
183	fprs_write(0);
184	return err;
185}
186
187static int cbc_decrypt(struct blkcipher_desc *desc,
188		       struct scatterlist *dst, struct scatterlist *src,
189		       unsigned int nbytes)
190{
191	struct camellia_sparc64_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
192	struct blkcipher_walk walk;
 
193	cbc_crypt_op *op;
194	const u64 *key;
 
195	int err;
196
197	op = camellia_sparc64_cbc_decrypt_3_grand_rounds;
198	if (ctx->key_len != 16)
199		op = camellia_sparc64_cbc_decrypt_4_grand_rounds;
200
201	blkcipher_walk_init(&walk, dst, src, nbytes);
202	err = blkcipher_walk_virt(desc, &walk);
203	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
204
205	key = &ctx->decrypt_key[0];
206	camellia_sparc64_load_keys(key, ctx->key_len);
207	while ((nbytes = walk.nbytes)) {
208		unsigned int block_len = nbytes & CAMELLIA_BLOCK_MASK;
209
210		if (likely(block_len)) {
211			const u64 *src64;
212			u64 *dst64;
213
214			src64 = (const u64 *)walk.src.virt.addr;
215			dst64 = (u64 *) walk.dst.virt.addr;
216			op(src64, dst64, block_len, key,
217			   (u64 *) walk.iv);
218		}
219		nbytes &= CAMELLIA_BLOCK_SIZE - 1;
220		err = blkcipher_walk_done(desc, &walk, nbytes);
221	}
222	fprs_write(0);
223	return err;
224}
225
226static struct crypto_alg algs[] = { {
227	.cra_name		= "camellia",
228	.cra_driver_name	= "camellia-sparc64",
229	.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
230	.cra_flags		= CRYPTO_ALG_TYPE_CIPHER,
231	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
232	.cra_ctxsize		= sizeof(struct camellia_sparc64_ctx),
233	.cra_alignmask		= 3,
234	.cra_module		= THIS_MODULE,
235	.cra_u	= {
236		.cipher	= {
237			.cia_min_keysize	= CAMELLIA_MIN_KEY_SIZE,
238			.cia_max_keysize	= CAMELLIA_MAX_KEY_SIZE,
239			.cia_setkey		= camellia_set_key,
240			.cia_encrypt		= camellia_encrypt,
241			.cia_decrypt		= camellia_decrypt
242		}
243	}
244}, {
245	.cra_name		= "ecb(camellia)",
246	.cra_driver_name	= "ecb-camellia-sparc64",
247	.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
248	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,
249	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
250	.cra_ctxsize		= sizeof(struct camellia_sparc64_ctx),
251	.cra_alignmask		= 7,
252	.cra_type		= &crypto_blkcipher_type,
253	.cra_module		= THIS_MODULE,
254	.cra_u = {
255		.blkcipher = {
256			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
257			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
258			.setkey		= camellia_set_key,
259			.encrypt	= ecb_encrypt,
260			.decrypt	= ecb_decrypt,
261		},
262	},
263}, {
264	.cra_name		= "cbc(camellia)",
265	.cra_driver_name	= "cbc-camellia-sparc64",
266	.cra_priority		= SPARC_CR_OPCODE_PRIORITY,
267	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,
268	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
269	.cra_ctxsize		= sizeof(struct camellia_sparc64_ctx),
270	.cra_alignmask		= 7,
271	.cra_type		= &crypto_blkcipher_type,
272	.cra_module		= THIS_MODULE,
273	.cra_u = {
274		.blkcipher = {
275			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
276			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
277			.ivsize		= CAMELLIA_BLOCK_SIZE,
278			.setkey		= camellia_set_key,
279			.encrypt	= cbc_encrypt,
280			.decrypt	= cbc_decrypt,
281		},
282	},
283}
284};
285
286static bool __init sparc64_has_camellia_opcode(void)
287{
288	unsigned long cfr;
289
290	if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
291		return false;
292
293	__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
294	if (!(cfr & CFR_CAMELLIA))
295		return false;
296
297	return true;
298}
299
300static int __init camellia_sparc64_mod_init(void)
301{
302	int i;
303
304	for (i = 0; i < ARRAY_SIZE(algs); i++)
305		INIT_LIST_HEAD(&algs[i].cra_list);
306
307	if (sparc64_has_camellia_opcode()) {
308		pr_info("Using sparc64 camellia opcodes optimized CAMELLIA implementation\n");
309		return crypto_register_algs(algs, ARRAY_SIZE(algs));
310	}
311	pr_info("sparc64 camellia opcodes not available.\n");
312	return -ENODEV;
 
 
 
 
 
 
 
313}
314
315static void __exit camellia_sparc64_mod_fini(void)
316{
317	crypto_unregister_algs(algs, ARRAY_SIZE(algs));
 
318}
319
320module_init(camellia_sparc64_mod_init);
321module_exit(camellia_sparc64_mod_fini);
322
323MODULE_LICENSE("GPL");
324MODULE_DESCRIPTION("Camellia Cipher Algorithm, sparc64 camellia opcode accelerated");
325
326MODULE_ALIAS_CRYPTO("camellia");
327
328#include "crop_devid.c"