sha256_ssse3_glue.c | Explore in Territory

/*
 * Cryptographic API.
 *
 * Glue code for the SHA256 Secure Hash Algorithm assembler implementations
 * using SSSE3, AVX, AVX2, and SHA-NI instructions.
 *
 * This file is based on sha256_generic.c
 *
 * Copyright (C) 2013 Intel Corporation.
 *
 * Author:
 *     Tim Chen <[email protected]>
 *
 * 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */


#define pr_fmt(fmt) …

#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/types.h>
#include <crypto/sha2.h>
#include <crypto/sha256_base.h>
#include <linux/string.h>
#include <asm/cpu_device_id.h>
#include <asm/simd.h>

asmlinkage void sha256_transform_ssse3(struct sha256_state *state,
				       const u8 *data, int blocks);

static const struct x86_cpu_id module_cpu_ids[] = …;
MODULE_DEVICE_TABLE(x86cpu, module_cpu_ids);

static int _sha256_update(struct shash_desc *desc, const u8 *data,
			  unsigned int len, sha256_block_fn *sha256_xform)
{ … }

static int sha256_finup(struct shash_desc *desc, const u8 *data,
	      unsigned int len, u8 *out, sha256_block_fn *sha256_xform)
{ … }

static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data,
			 unsigned int len)
{ … }

static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data,
	      unsigned int len, u8 *out)
{ … }

/* Add padding and return the message digest. */
static int sha256_ssse3_final(struct shash_desc *desc, u8 *out)
{ … }

static int sha256_ssse3_digest(struct shash_desc *desc, const u8 *data,
	      unsigned int len, u8 *out)
{ … }

static struct shash_alg sha256_ssse3_algs[] = …;

static int register_sha256_ssse3(void)
{ … }

static void unregister_sha256_ssse3(void)
{ … }

asmlinkage void sha256_transform_avx(struct sha256_state *state,
				     const u8 *data, int blocks);

static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
			 unsigned int len)
{ … }

static int sha256_avx_finup(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static int sha256_avx_final(struct shash_desc *desc, u8 *out)
{ … }

static int sha256_avx_digest(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static struct shash_alg sha256_avx_algs[] = …;

static bool avx_usable(void)
{ … }

static int register_sha256_avx(void)
{ … }

static void unregister_sha256_avx(void)
{ … }

asmlinkage void sha256_transform_rorx(struct sha256_state *state,
				      const u8 *data, int blocks);

static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
			 unsigned int len)
{ … }

static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static int sha256_avx2_final(struct shash_desc *desc, u8 *out)
{ … }

static int sha256_avx2_digest(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static struct shash_alg sha256_avx2_algs[] = …;

static bool avx2_usable(void)
{ … }

static int register_sha256_avx2(void)
{ … }

static void unregister_sha256_avx2(void)
{ … }

#ifdef CONFIG_AS_SHA256_NI
asmlinkage void sha256_ni_transform(struct sha256_state *digest,
				    const u8 *data, int rounds);

static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
			 unsigned int len)
{ … }

static int sha256_ni_finup(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static int sha256_ni_final(struct shash_desc *desc, u8 *out)
{ … }

static int sha256_ni_digest(struct shash_desc *desc, const u8 *data,
		      unsigned int len, u8 *out)
{ … }

static struct shash_alg sha256_ni_algs[] = …;

static int register_sha256_ni(void)
{ … }

static void unregister_sha256_ni(void)
{ … }

#else
static inline int register_sha256_ni(void) { return 0; }
static inline void unregister_sha256_ni(void) { }
#endif

static int __init sha256_ssse3_mod_init(void)
{ … }

static void __exit sha256_ssse3_mod_fini(void)
{ … }

module_init(…) …;
module_exit(sha256_ssse3_mod_fini);

MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;

MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
#ifdef CONFIG_AS_SHA256_NI
MODULE_ALIAS_CRYPTO(…) …;
MODULE_ALIAS_CRYPTO(…) …;
#endif
linux/arch/x86/crypto/sha256_ssse3_glue.c
