[linux-2.6-block.git] / arch / x86 / crypto / camellia_aesni_avx_glue.c

/*
 * Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
 *
 * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/ctr.h>
#include <crypto/lrw.h>
#include <crypto/xts.h>
#include <asm/fpu/api.h>
#include <asm/crypto/camellia.h>
#include <asm/crypto/glue_helper.h>

#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16

/* 16-way parallel cipher functions (avx/aes-ni) */
asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
				       const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);

asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
				       const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);

asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
				       const u8 *src);
EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);

asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
				   const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_ctr_16way);

asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
				       const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);

asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
				       const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);

void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
	glue_xts_crypt_128bit_one(ctx, dst, src, iv,
				  GLUE_FUNC_CAST(camellia_enc_blk));
}
EXPORT_SYMBOL_GPL(camellia_xts_enc);

void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
	glue_xts_crypt_128bit_one(ctx, dst, src, iv,
				  GLUE_FUNC_CAST(camellia_dec_blk));
}
EXPORT_SYMBOL_GPL(camellia_xts_dec);

static const struct common_glue_ctx camellia_enc = {
	.num_funcs = 3,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
	}, {
		.num_blocks = 2,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
	} }
};

static const struct common_glue_ctx camellia_ctr = {
	.num_funcs = 3,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
	}, {
		.num_blocks = 2,
		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
	} }
};

static const struct common_glue_ctx camellia_enc_xts = {
	.num_funcs = 2,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
	} }
};

static const struct common_glue_ctx camellia_dec = {
	.num_funcs = 3,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
	}, {
		.num_blocks = 2,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
	} }
};

static const struct common_glue_ctx camellia_dec_cbc = {
	.num_funcs = 3,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
	}, {
		.num_blocks = 2,
		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
	} }
};

static const struct common_glue_ctx camellia_dec_xts = {
	.num_funcs = 2,
	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,

	.funcs = { {
		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
	}, {
		.num_blocks = 1,
		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
	} }
};

static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);
}

static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);
}

static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,
				       dst, src, nbytes);
}

static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,
				       nbytes);
}

static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		     struct scatterlist *src, unsigned int nbytes)
{
	return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);
}

static inline bool camellia_fpu_begin(bool fpu_enabled, unsigned int nbytes)
{
	return glue_fpu_begin(CAMELLIA_BLOCK_SIZE,
			      CAMELLIA_AESNI_PARALLEL_BLOCKS, NULL, fpu_enabled,
			      nbytes);
}

static inline void camellia_fpu_end(bool fpu_enabled)
{
	glue_fpu_end(fpu_enabled);
}

static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,
			   unsigned int key_len)
{
	return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
				 &tfm->crt_flags);
}

struct crypt_priv {
	struct camellia_ctx *ctx;
	bool fpu_enabled;
};

static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
{
	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
	struct crypt_priv *ctx = priv;
	int i;

	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);

	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
		camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
		nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
	}

	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
		camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
		nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
	}

	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
		camellia_enc_blk(ctx->ctx, srcdst, srcdst);
}

static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
{
	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
	struct crypt_priv *ctx = priv;
	int i;

	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);

	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
		camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
		nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
	}

	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
		camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
		nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
	}

	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
		camellia_dec_blk(ctx->ctx, srcdst, srcdst);
}

static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
	struct crypt_priv crypt_ctx = {
		.ctx = &ctx->camellia_ctx,
		.fpu_enabled = false,
	};
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = &crypt_ctx,
		.crypt_fn = encrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	camellia_fpu_end(crypt_ctx.fpu_enabled);

	return ret;
}

static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
	be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
	struct crypt_priv crypt_ctx = {
		.ctx = &ctx->camellia_ctx,
		.fpu_enabled = false,
	};
	struct lrw_crypt_req req = {
		.tbuf = buf,
		.tbuflen = sizeof(buf),

		.table_ctx = &ctx->lrw_table,
		.crypt_ctx = &crypt_ctx,
		.crypt_fn = decrypt_callback,
	};
	int ret;

	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
	ret = lrw_crypt(desc, dst, src, nbytes, &req);
	camellia_fpu_end(crypt_ctx.fpu_enabled);

	return ret;
}

static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes,
				     XTS_TWEAK_CAST(camellia_enc_blk),
				     &ctx->tweak_ctx, &ctx->crypt_ctx);
}

static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes)
{
	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes,
				     XTS_TWEAK_CAST(camellia_enc_blk),
				     &ctx->tweak_ctx, &ctx->crypt_ctx);
}

static struct crypto_alg cmll_algs[10] = { {
	.cra_name		= "__ecb-camellia-aesni",
	.cra_driver_name	= "__driver-ecb-camellia-aesni",
	.cra_priority		= 0,
	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER |
				  CRYPTO_ALG_INTERNAL,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct camellia_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_blkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_u = {
		.blkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.setkey		= camellia_setkey,
			.encrypt	= ecb_encrypt,
			.decrypt	= ecb_decrypt,
		},
	},
}, {
	.cra_name		= "__cbc-camellia-aesni",
	.cra_driver_name	= "__driver-cbc-camellia-aesni",
	.cra_priority		= 0,
	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER |
				  CRYPTO_ALG_INTERNAL,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct camellia_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_blkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_u = {
		.blkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.setkey		= camellia_setkey,
			.encrypt	= cbc_encrypt,
			.decrypt	= cbc_decrypt,
		},
	},
}, {
	.cra_name		= "__ctr-camellia-aesni",
	.cra_driver_name	= "__driver-ctr-camellia-aesni",
	.cra_priority		= 0,
	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER |
				  CRYPTO_ALG_INTERNAL,
	.cra_blocksize		= 1,
	.cra_ctxsize		= sizeof(struct camellia_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_blkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_u = {
		.blkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= camellia_setkey,
			.encrypt	= ctr_crypt,
			.decrypt	= ctr_crypt,
		},
	},
}, {
	.cra_name		= "__lrw-camellia-aesni",
	.cra_driver_name	= "__driver-lrw-camellia-aesni",
	.cra_priority		= 0,
	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER |
				  CRYPTO_ALG_INTERNAL,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct camellia_lrw_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_blkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_exit		= lrw_camellia_exit_tfm,
	.cra_u = {
		.blkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE +
					  CAMELLIA_BLOCK_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE +
					  CAMELLIA_BLOCK_SIZE,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= lrw_camellia_setkey,
			.encrypt	= lrw_encrypt,
			.decrypt	= lrw_decrypt,
		},
	},
}, {
	.cra_name		= "__xts-camellia-aesni",
	.cra_driver_name	= "__driver-xts-camellia-aesni",
	.cra_priority		= 0,
	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER |
				  CRYPTO_ALG_INTERNAL,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct camellia_xts_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_blkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_u = {
		.blkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE * 2,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE * 2,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= xts_camellia_setkey,
			.encrypt	= xts_encrypt,
			.decrypt	= xts_decrypt,
		},
	},
}, {
	.cra_name		= "ecb(camellia)",
	.cra_driver_name	= "ecb-camellia-aesni",
	.cra_priority		= 400,
	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct async_helper_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_ablkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_init		= ablk_init,
	.cra_exit		= ablk_exit,
	.cra_u = {
		.ablkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.setkey		= ablk_set_key,
			.encrypt	= ablk_encrypt,
			.decrypt	= ablk_decrypt,
		},
	},
}, {
	.cra_name		= "cbc(camellia)",
	.cra_driver_name	= "cbc-camellia-aesni",
	.cra_priority		= 400,
	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct async_helper_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_ablkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_init		= ablk_init,
	.cra_exit		= ablk_exit,
	.cra_u = {
		.ablkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= ablk_set_key,
			.encrypt	= __ablk_encrypt,
			.decrypt	= ablk_decrypt,
		},
	},
}, {
	.cra_name		= "ctr(camellia)",
	.cra_driver_name	= "ctr-camellia-aesni",
	.cra_priority		= 400,
	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
	.cra_blocksize		= 1,
	.cra_ctxsize		= sizeof(struct async_helper_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_ablkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_init		= ablk_init,
	.cra_exit		= ablk_exit,
	.cra_u = {
		.ablkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= ablk_set_key,
			.encrypt	= ablk_encrypt,
			.decrypt	= ablk_encrypt,
			.geniv		= "chainiv",
		},
	},
}, {
	.cra_name		= "lrw(camellia)",
	.cra_driver_name	= "lrw-camellia-aesni",
	.cra_priority		= 400,
	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct async_helper_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_ablkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_init		= ablk_init,
	.cra_exit		= ablk_exit,
	.cra_u = {
		.ablkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE +
					  CAMELLIA_BLOCK_SIZE,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE +
					  CAMELLIA_BLOCK_SIZE,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= ablk_set_key,
			.encrypt	= ablk_encrypt,
			.decrypt	= ablk_decrypt,
		},
	},
}, {
	.cra_name		= "xts(camellia)",
	.cra_driver_name	= "xts-camellia-aesni",
	.cra_priority		= 400,
	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,
	.cra_ctxsize		= sizeof(struct async_helper_ctx),
	.cra_alignmask		= 0,
	.cra_type		= &crypto_ablkcipher_type,
	.cra_module		= THIS_MODULE,
	.cra_init		= ablk_init,
	.cra_exit		= ablk_exit,
	.cra_u = {
		.ablkcipher = {
			.min_keysize	= CAMELLIA_MIN_KEY_SIZE * 2,
			.max_keysize	= CAMELLIA_MAX_KEY_SIZE * 2,
			.ivsize		= CAMELLIA_BLOCK_SIZE,
			.setkey		= ablk_set_key,
			.encrypt	= ablk_encrypt,
			.decrypt	= ablk_decrypt,
		},
	},
} };

static int __init camellia_aesni_init(void)
{
	const char *feature_name;

	if (!boot_cpu_has(X86_FEATURE_AVX) ||
	    !boot_cpu_has(X86_FEATURE_AES) ||
	    !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
		pr_info("AVX or AES-NI instructions are not detected.\n");
		return -ENODEV;
	}

	if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
				&feature_name)) {
		pr_info("CPU feature '%s' is not supported.\n", feature_name);
		return -ENODEV;
	}

	return crypto_register_algs(cmll_algs, ARRAY_SIZE(cmll_algs));
}

static void __exit camellia_aesni_fini(void)
{
	crypto_unregister_algs(cmll_algs, ARRAY_SIZE(cmll_algs));
}

module_init(camellia_aesni_init);
module_exit(camellia_aesni_fini);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized");
MODULE_ALIAS_CRYPTO("camellia");
MODULE_ALIAS_CRYPTO("camellia-asm");
Commit	Line	Data
d9b1d2e7 JK	1	/*
	2	* Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
	3	*
b5c5b072	4	* Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
d9b1d2e7 JK	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	#include <linux/module.h>
	14	#include <linux/types.h>
	15	#include <linux/crypto.h>
	16	#include <linux/err.h>
801201aa	17	#include <crypto/ablk_helper.h>
d9b1d2e7 JK	18	#include <crypto/algapi.h>
	19	#include <crypto/ctr.h>
	20	#include <crypto/lrw.h>
	21	#include <crypto/xts.h>
ce4f5f9b	22	#include <asm/fpu/api.h>
d9b1d2e7	23	#include <asm/crypto/camellia.h>
d9b1d2e7 JK	24	#include <asm/crypto/glue_helper.h>
	25
	26	#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
	27
f3f935a7	28	/* 16-way parallel cipher functions (avx/aes-ni) */
d9b1d2e7 JK	29	asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx ctx, u8 dst,
d9b1d2e7 JK	30	const u8 *src);
f3f935a7 JK	31	EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
f3f935a7 JK	32
d9b1d2e7 JK	33	asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx ctx, u8 dst,
d9b1d2e7 JK	34	const u8 *src);
f3f935a7	35	EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
d9b1d2e7 JK	36
	37	asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx ctx, u8 dst,
	38	const u8 *src);
f3f935a7 JK	39	EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
f3f935a7 JK	40
d9b1d2e7 JK	41	asmlinkage void camellia_ctr_16way(struct camellia_ctx ctx, u8 dst,
d9b1d2e7 JK	42	const u8 src, le128 iv);
f3f935a7	43	EXPORT_SYMBOL_GPL(camellia_ctr_16way);
d9b1d2e7	44
b5c5b072 JK	45	asmlinkage void camellia_xts_enc_16way(struct camellia_ctx ctx, u8 dst,
b5c5b072 JK	46	const u8 src, le128 iv);
f3f935a7 JK	47	EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);
f3f935a7 JK	48
b5c5b072 JK	49	asmlinkage void camellia_xts_dec_16way(struct camellia_ctx ctx, u8 dst,
b5c5b072 JK	50	const u8 src, le128 iv);
f3f935a7	51	EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);
b5c5b072	52
f3f935a7	53	void camellia_xts_enc(void ctx, u128 dst, const u128 src, le128 iv)
b5c5b072 JK	54	{
	55	glue_xts_crypt_128bit_one(ctx, dst, src, iv,
	56	GLUE_FUNC_CAST(camellia_enc_blk));
	57	}
f3f935a7	58	EXPORT_SYMBOL_GPL(camellia_xts_enc);
b5c5b072	59
f3f935a7	60	void camellia_xts_dec(void ctx, u128 dst, const u128 src, le128 iv)
b5c5b072 JK	61	{
	62	glue_xts_crypt_128bit_one(ctx, dst, src, iv,
	63	GLUE_FUNC_CAST(camellia_dec_blk));
	64	}
f3f935a7	65	EXPORT_SYMBOL_GPL(camellia_xts_dec);
b5c5b072	66
d9b1d2e7 JK	67	static const struct common_glue_ctx camellia_enc = {
	68	.num_funcs = 3,
	69	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	70
	71	.funcs = { {
	72	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	73	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
	74	}, {
	75	.num_blocks = 2,
	76	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
	77	}, {
	78	.num_blocks = 1,
	79	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
	80	} }
	81	};
	82
	83	static const struct common_glue_ctx camellia_ctr = {
	84	.num_funcs = 3,
	85	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	86
	87	.funcs = { {
	88	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	89	.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
	90	}, {
	91	.num_blocks = 2,
	92	.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
	93	}, {
	94	.num_blocks = 1,
	95	.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
	96	} }
	97	};
	98
b5c5b072 JK	99	static const struct common_glue_ctx camellia_enc_xts = {
	100	.num_funcs = 2,
	101	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	102
	103	.funcs = { {
	104	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	105	.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
	106	}, {
	107	.num_blocks = 1,
	108	.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
	109	} }
	110	};
	111
d9b1d2e7 JK	112	static const struct common_glue_ctx camellia_dec = {
	113	.num_funcs = 3,
	114	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	115
	116	.funcs = { {
	117	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	118	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
	119	}, {
	120	.num_blocks = 2,
	121	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
	122	}, {
	123	.num_blocks = 1,
	124	.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
	125	} }
	126	};
	127
	128	static const struct common_glue_ctx camellia_dec_cbc = {
	129	.num_funcs = 3,
	130	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	131
	132	.funcs = { {
	133	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	134	.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
	135	}, {
	136	.num_blocks = 2,
	137	.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
	138	}, {
	139	.num_blocks = 1,
	140	.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
	141	} }
	142	};
	143
b5c5b072 JK	144	static const struct common_glue_ctx camellia_dec_xts = {
	145	.num_funcs = 2,
	146	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	147
	148	.funcs = { {
	149	.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
	150	.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
	151	}, {
	152	.num_blocks = 1,
	153	.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
	154	} }
	155	};
	156
d9b1d2e7 JK	157	static int ecb_encrypt(struct blkcipher_desc desc, struct scatterlist dst,
	158	struct scatterlist *src, unsigned int nbytes)
	159	{
	160	return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);
	161	}
	162
	163	static int ecb_decrypt(struct blkcipher_desc desc, struct scatterlist dst,
	164	struct scatterlist *src, unsigned int nbytes)
	165	{
	166	return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);
	167	}
	168
	169	static int cbc_encrypt(struct blkcipher_desc desc, struct scatterlist dst,
	170	struct scatterlist *src, unsigned int nbytes)
	171	{
	172	return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,
	173	dst, src, nbytes);
	174	}
	175
	176	static int cbc_decrypt(struct blkcipher_desc desc, struct scatterlist dst,
	177	struct scatterlist *src, unsigned int nbytes)
	178	{
	179	return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,
	180	nbytes);
	181	}
	182
	183	static int ctr_crypt(struct blkcipher_desc desc, struct scatterlist dst,
	184	struct scatterlist *src, unsigned int nbytes)
	185	{
	186	return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);
	187	}
	188
	189	static inline bool camellia_fpu_begin(bool fpu_enabled, unsigned int nbytes)
	190	{
	191	return glue_fpu_begin(CAMELLIA_BLOCK_SIZE,
	192	CAMELLIA_AESNI_PARALLEL_BLOCKS, NULL, fpu_enabled,
	193	nbytes);
	194	}
	195
	196	static inline void camellia_fpu_end(bool fpu_enabled)
	197	{
	198	glue_fpu_end(fpu_enabled);
	199	}
	200
	201	static int camellia_setkey(struct crypto_tfm tfm, const u8 in_key,
	202	unsigned int key_len)
	203	{
	204	return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,
	205	&tfm->crt_flags);
	206	}
	207
	208	struct crypt_priv {
	209	struct camellia_ctx *ctx;
	210	bool fpu_enabled;
	211	};
	212
	213	static void encrypt_callback(void priv, u8 srcdst, unsigned int nbytes)
	214	{
	215	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
	216	struct crypt_priv *ctx = priv;
	217	int i;
	218
	219	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);
	220
221	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
222	camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst);
223	srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
224	nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
225	}
226
227	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
228	camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst);
229	srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
230	nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
231	}
232
233	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
234	camellia_enc_blk(ctx->ctx, srcdst, srcdst);
235	}
236
237	static void decrypt_callback(void priv, u8 srcdst, unsigned int nbytes)
238	{
239	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;
240	struct crypt_priv *ctx = priv;
241	int i;
242
243	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);
244
245	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {
246	camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst);
247	srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
248	nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;
249	}
250
251	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {
252	camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst);
253	srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;
254	nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;
255	}
256
257	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
258	camellia_dec_blk(ctx->ctx, srcdst, srcdst);
259	}
260
261	static int lrw_encrypt(struct blkcipher_desc desc, struct scatterlist dst,
262	struct scatterlist *src, unsigned int nbytes)
263	{
264	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
265	be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
266	struct crypt_priv crypt_ctx = {
267	.ctx = &ctx->camellia_ctx,
268	.fpu_enabled = false,
269	};
270	struct lrw_crypt_req req = {
271	.tbuf = buf,
272	.tbuflen = sizeof(buf),
273
274	.table_ctx = &ctx->lrw_table,
275	.crypt_ctx = &crypt_ctx,
276	.crypt_fn = encrypt_callback,
277	};
278	int ret;
279
280	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
281	ret = lrw_crypt(desc, dst, src, nbytes, &req);
282	camellia_fpu_end(crypt_ctx.fpu_enabled);
283
284	return ret;
285	}
286
287	static int lrw_decrypt(struct blkcipher_desc desc, struct scatterlist dst,
288	struct scatterlist *src, unsigned int nbytes)
289	{
290	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
291	be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS];
292	struct crypt_priv crypt_ctx = {
293	.ctx = &ctx->camellia_ctx,
294	.fpu_enabled = false,
295	};
296	struct lrw_crypt_req req = {
297	.tbuf = buf,
298	.tbuflen = sizeof(buf),
299
300	.table_ctx = &ctx->lrw_table,
301	.crypt_ctx = &crypt_ctx,
302	.crypt_fn = decrypt_callback,
303	};
304	int ret;
305
306	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
307	ret = lrw_crypt(desc, dst, src, nbytes, &req);
308	camellia_fpu_end(crypt_ctx.fpu_enabled);
309
310	return ret;
311	}
312
313	static int xts_encrypt(struct blkcipher_desc desc, struct scatterlist dst,
314	struct scatterlist *src, unsigned int nbytes)
315	{
316	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
d9b1d2e7	317
b5c5b072 JK	318	return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes,
	319	XTS_TWEAK_CAST(camellia_enc_blk),
	320	&ctx->tweak_ctx, &ctx->crypt_ctx);
d9b1d2e7 JK	321	}
	322
	323	static int xts_decrypt(struct blkcipher_desc desc, struct scatterlist dst,
	324	struct scatterlist *src, unsigned int nbytes)
	325	{
	326	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
d9b1d2e7	327
b5c5b072 JK	328	return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes,
	329	XTS_TWEAK_CAST(camellia_enc_blk),
	330	&ctx->tweak_ctx, &ctx->crypt_ctx);
d9b1d2e7 JK	331	}
	332
	333	static struct crypto_alg cmll_algs[10] = { {
	334	.cra_name = "__ecb-camellia-aesni",
	335	.cra_driver_name = "__driver-ecb-camellia-aesni",
	336	.cra_priority = 0,
7d2c31dd SM	337	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER \|
7d2c31dd SM	338	CRYPTO_ALG_INTERNAL,
d9b1d2e7 JK	339	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	340	.cra_ctxsize = sizeof(struct camellia_ctx),
	341	.cra_alignmask = 0,
	342	.cra_type = &crypto_blkcipher_type,
	343	.cra_module = THIS_MODULE,
	344	.cra_u = {
	345	.blkcipher = {
	346	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
	347	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
	348	.setkey = camellia_setkey,
	349	.encrypt = ecb_encrypt,
	350	.decrypt = ecb_decrypt,
	351	},
	352	},
	353	}, {
	354	.cra_name = "__cbc-camellia-aesni",
	355	.cra_driver_name = "__driver-cbc-camellia-aesni",
	356	.cra_priority = 0,
7d2c31dd SM	357	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER \|
7d2c31dd SM	358	CRYPTO_ALG_INTERNAL,
d9b1d2e7 JK	359	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	360	.cra_ctxsize = sizeof(struct camellia_ctx),
	361	.cra_alignmask = 0,
	362	.cra_type = &crypto_blkcipher_type,
	363	.cra_module = THIS_MODULE,
	364	.cra_u = {
	365	.blkcipher = {
	366	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
	367	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
	368	.setkey = camellia_setkey,
	369	.encrypt = cbc_encrypt,
	370	.decrypt = cbc_decrypt,
	371	},
	372	},
	373	}, {
	374	.cra_name = "__ctr-camellia-aesni",
	375	.cra_driver_name = "__driver-ctr-camellia-aesni",
	376	.cra_priority = 0,
7d2c31dd SM	377	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER \|
7d2c31dd SM	378	CRYPTO_ALG_INTERNAL,
d9b1d2e7 JK	379	.cra_blocksize = 1,
	380	.cra_ctxsize = sizeof(struct camellia_ctx),
	381	.cra_alignmask = 0,
	382	.cra_type = &crypto_blkcipher_type,
	383	.cra_module = THIS_MODULE,
	384	.cra_u = {
	385	.blkcipher = {
	386	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
	387	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
	388	.ivsize = CAMELLIA_BLOCK_SIZE,
	389	.setkey = camellia_setkey,
	390	.encrypt = ctr_crypt,
	391	.decrypt = ctr_crypt,
	392	},
	393	},
	394	}, {
	395	.cra_name = "__lrw-camellia-aesni",
	396	.cra_driver_name = "__driver-lrw-camellia-aesni",
	397	.cra_priority = 0,
7d2c31dd SM	398	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER \|
7d2c31dd SM	399	CRYPTO_ALG_INTERNAL,
d9b1d2e7 JK	400	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	401	.cra_ctxsize = sizeof(struct camellia_lrw_ctx),
	402	.cra_alignmask = 0,
	403	.cra_type = &crypto_blkcipher_type,
	404	.cra_module = THIS_MODULE,
	405	.cra_exit = lrw_camellia_exit_tfm,
	406	.cra_u = {
	407	.blkcipher = {
	408	.min_keysize = CAMELLIA_MIN_KEY_SIZE +
	409	CAMELLIA_BLOCK_SIZE,
	410	.max_keysize = CAMELLIA_MAX_KEY_SIZE +
	411	CAMELLIA_BLOCK_SIZE,
	412	.ivsize = CAMELLIA_BLOCK_SIZE,
	413	.setkey = lrw_camellia_setkey,
	414	.encrypt = lrw_encrypt,
	415	.decrypt = lrw_decrypt,
	416	},
	417	},
	418	}, {
	419	.cra_name = "__xts-camellia-aesni",
	420	.cra_driver_name = "__driver-xts-camellia-aesni",
	421	.cra_priority = 0,
7d2c31dd SM	422	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER \|
7d2c31dd SM	423	CRYPTO_ALG_INTERNAL,
d9b1d2e7 JK	424	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	425	.cra_ctxsize = sizeof(struct camellia_xts_ctx),
	426	.cra_alignmask = 0,
	427	.cra_type = &crypto_blkcipher_type,
	428	.cra_module = THIS_MODULE,
	429	.cra_u = {
	430	.blkcipher = {
	431	.min_keysize = CAMELLIA_MIN_KEY_SIZE * 2,
	432	.max_keysize = CAMELLIA_MAX_KEY_SIZE * 2,
	433	.ivsize = CAMELLIA_BLOCK_SIZE,
	434	.setkey = xts_camellia_setkey,
	435	.encrypt = xts_encrypt,
	436	.decrypt = xts_decrypt,
	437	},
	438	},
	439	}, {
	440	.cra_name = "ecb(camellia)",
	441	.cra_driver_name = "ecb-camellia-aesni",
	442	.cra_priority = 400,
	443	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER \| CRYPTO_ALG_ASYNC,
	444	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	445	.cra_ctxsize = sizeof(struct async_helper_ctx),
	446	.cra_alignmask = 0,
	447	.cra_type = &crypto_ablkcipher_type,
	448	.cra_module = THIS_MODULE,
	449	.cra_init = ablk_init,
	450	.cra_exit = ablk_exit,
	451	.cra_u = {
	452	.ablkcipher = {
	453	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
	454	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
	455	.setkey = ablk_set_key,
	456	.encrypt = ablk_encrypt,
	457	.decrypt = ablk_decrypt,
	458	},
	459	},
	460	}, {
	461	.cra_name = "cbc(camellia)",
	462	.cra_driver_name = "cbc-camellia-aesni",
	463	.cra_priority = 400,
	464	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER \| CRYPTO_ALG_ASYNC,
	465	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
	466	.cra_ctxsize = sizeof(struct async_helper_ctx),
	467	.cra_alignmask = 0,
	468	.cra_type = &crypto_ablkcipher_type,
	469	.cra_module = THIS_MODULE,
	470	.cra_init = ablk_init,
	471	.cra_exit = ablk_exit,
	472	.cra_u = {
	473	.ablkcipher = {
	474	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
	475	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
	476	.ivsize = CAMELLIA_BLOCK_SIZE,
	477	.setkey = ablk_set_key,
	478	.encrypt = __ablk_encrypt,
	479	.decrypt = ablk_decrypt,
	480	},
	481	},
	482	}, {
	483	.cra_name = "ctr(camellia)",
	484	.cra_driver_name = "ctr-camellia-aesni",
	485	.cra_priority = 400,
	486	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER \| CRYPTO_ALG_ASYNC,
	487	.cra_blocksize = 1,
488	.cra_ctxsize = sizeof(struct async_helper_ctx),
489	.cra_alignmask = 0,
490	.cra_type = &crypto_ablkcipher_type,
491	.cra_module = THIS_MODULE,
492	.cra_init = ablk_init,
493	.cra_exit = ablk_exit,
494	.cra_u = {
495	.ablkcipher = {
496	.min_keysize = CAMELLIA_MIN_KEY_SIZE,
497	.max_keysize = CAMELLIA_MAX_KEY_SIZE,
498	.ivsize = CAMELLIA_BLOCK_SIZE,
499	.setkey = ablk_set_key,
500	.encrypt = ablk_encrypt,
501	.decrypt = ablk_encrypt,
502	.geniv = "chainiv",
503	},
504	},
505	}, {
506	.cra_name = "lrw(camellia)",
507	.cra_driver_name = "lrw-camellia-aesni",
508	.cra_priority = 400,
509	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER \| CRYPTO_ALG_ASYNC,
510	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
511	.cra_ctxsize = sizeof(struct async_helper_ctx),
512	.cra_alignmask = 0,
513	.cra_type = &crypto_ablkcipher_type,
514	.cra_module = THIS_MODULE,
515	.cra_init = ablk_init,
516	.cra_exit = ablk_exit,
517	.cra_u = {
518	.ablkcipher = {
519	.min_keysize = CAMELLIA_MIN_KEY_SIZE +
520	CAMELLIA_BLOCK_SIZE,
521	.max_keysize = CAMELLIA_MAX_KEY_SIZE +
522	CAMELLIA_BLOCK_SIZE,
523	.ivsize = CAMELLIA_BLOCK_SIZE,
524	.setkey = ablk_set_key,
525	.encrypt = ablk_encrypt,
526	.decrypt = ablk_decrypt,
527	},
528	},
529	}, {
530	.cra_name = "xts(camellia)",
531	.cra_driver_name = "xts-camellia-aesni",
532	.cra_priority = 400,
533	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER \| CRYPTO_ALG_ASYNC,
534	.cra_blocksize = CAMELLIA_BLOCK_SIZE,
535	.cra_ctxsize = sizeof(struct async_helper_ctx),
536	.cra_alignmask = 0,
537	.cra_type = &crypto_ablkcipher_type,
538	.cra_module = THIS_MODULE,
539	.cra_init = ablk_init,
540	.cra_exit = ablk_exit,
541	.cra_u = {
542	.ablkcipher = {
543	.min_keysize = CAMELLIA_MIN_KEY_SIZE * 2,
544	.max_keysize = CAMELLIA_MAX_KEY_SIZE * 2,
545	.ivsize = CAMELLIA_BLOCK_SIZE,
546	.setkey = ablk_set_key,
547	.encrypt = ablk_encrypt,
548	.decrypt = ablk_decrypt,
549	},
550	},
551	} };
552
553	static int __init camellia_aesni_init(void)
554	{
ce4f5f9b	555	const char *feature_name;
d9b1d2e7	556
da154e82	557	if (!boot_cpu_has(X86_FEATURE_AVX) \|\|
1f4dd793 BP	558	!boot_cpu_has(X86_FEATURE_AES) \|\|
1f4dd793 BP	559	!boot_cpu_has(X86_FEATURE_OSXSAVE)) {
92b27907 BH	560	pr_info("AVX or AES-NI instructions are not detected.\n");
	561	return -ENODEV;
	562	}
	563
d91cab78 DH	564	if (!cpu_has_xfeatures(XFEATURE_MASK_SSE \| XFEATURE_MASK_YMM,
d91cab78 DH	565	&feature_name)) {
ce4f5f9b	566	pr_info("CPU feature '%s' is not supported.\n", feature_name);
d9b1d2e7 JK	567	return -ENODEV;
	568	}
	569
	570	return crypto_register_algs(cmll_algs, ARRAY_SIZE(cmll_algs));
	571	}
	572
	573	static void __exit camellia_aesni_fini(void)
	574	{
	575	crypto_unregister_algs(cmll_algs, ARRAY_SIZE(cmll_algs));
	576	}
	577
	578	module_init(camellia_aesni_init);
	579	module_exit(camellia_aesni_fini);
	580
	581	MODULE_LICENSE("GPL");
	582	MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized");
5d26a105 KC	583	MODULE_ALIAS_CRYPTO("camellia");
5d26a105 KC	584	MODULE_ALIAS_CRYPTO("camellia-asm");