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Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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orangepi/linux-orangepi-5.10.y.git/trunk/arch/x86/crypto/sha512_ssse3_glue.c
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/*
 * Cryptographic API.
 *
 * Glue code for the SHA512 Secure Hash Algorithm assembler
 * implementation using supplemental SSE3 / AVX / AVX2 instructions.
 *
 * This file is based on sha512_generic.c
 *
 * Copyright (C) 2013 Intel Corporation
 * Author: Tim Chen <tim.c.chen@linux.intel.com>
 *
 * 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)	KBUILD_MODNAME ": " 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/string.h>
#include <linux/types.h>
#include <crypto/sha.h>
#include <crypto/sha512_base.h>
#include <asm/simd.h>
 
asmlinkage void sha512_transform_ssse3(struct sha512_state *state,
<------><------><------><------>       const u8 *data, int blocks);
 
static int sha512_update(struct shash_desc *desc, const u8 *data,
<------><------>       unsigned int len, sha512_block_fn *sha512_xform)
{
<------>struct sha512_state *sctx = shash_desc_ctx(desc);
 
<------>if (!crypto_simd_usable() ||
<------>    (sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE)
<------><------>return crypto_sha512_update(desc, data, len);
 
<------>/*
<------> * Make sure struct sha512_state begins directly with the SHA512
<------> * 512-bit internal state, as this is what the asm functions expect.
<------> */
<------>BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
 
<------>kernel_fpu_begin();
<------>sha512_base_do_update(desc, data, len, sha512_xform);
<------>kernel_fpu_end();
 
<------>return 0;
}
 
static int sha512_finup(struct shash_desc *desc, const u8 *data,
<------>      unsigned int len, u8 *out, sha512_block_fn *sha512_xform)
{
<------>if (!crypto_simd_usable())
<------><------>return crypto_sha512_finup(desc, data, len, out);
 
<------>kernel_fpu_begin();
<------>if (len)
<------><------>sha512_base_do_update(desc, data, len, sha512_xform);
<------>sha512_base_do_finalize(desc, sha512_xform);
<------>kernel_fpu_end();
 
<------>return sha512_base_finish(desc, out);
}
 
static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data,
<------><------>       unsigned int len)
{
<------>return sha512_update(desc, data, len, sha512_transform_ssse3);
}
 
static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data,
<------>      unsigned int len, u8 *out)
{
<------>return sha512_finup(desc, data, len, out, sha512_transform_ssse3);
}
 
/* Add padding and return the message digest. */
static int sha512_ssse3_final(struct shash_desc *desc, u8 *out)
{
<------>return sha512_ssse3_finup(desc, NULL, 0, out);
}
 
static struct shash_alg sha512_ssse3_algs[] = { {
<------>.digestsize	=	SHA512_DIGEST_SIZE,
<------>.init		=	sha512_base_init,
<------>.update		=	sha512_ssse3_update,
<------>.final		=	sha512_ssse3_final,
<------>.finup		=	sha512_ssse3_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha512",
<------><------>.cra_driver_name =	"sha512-ssse3",
<------><------>.cra_priority	=	150,
<------><------>.cra_blocksize	=	SHA512_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
},  {
<------>.digestsize	=	SHA384_DIGEST_SIZE,
<------>.init		=	sha384_base_init,
<------>.update		=	sha512_ssse3_update,
<------>.final		=	sha512_ssse3_final,
<------>.finup		=	sha512_ssse3_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha384",
<------><------>.cra_driver_name =	"sha384-ssse3",
<------><------>.cra_priority	=	150,
<------><------>.cra_blocksize	=	SHA384_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
} };
 
static int register_sha512_ssse3(void)
{
<------>if (boot_cpu_has(X86_FEATURE_SSSE3))
<------><------>return crypto_register_shashes(sha512_ssse3_algs,
<------><------><------>ARRAY_SIZE(sha512_ssse3_algs));
<------>return 0;
}
 
static void unregister_sha512_ssse3(void)
{
<------>if (boot_cpu_has(X86_FEATURE_SSSE3))
<------><------>crypto_unregister_shashes(sha512_ssse3_algs,
<------><------><------>ARRAY_SIZE(sha512_ssse3_algs));
}
 
asmlinkage void sha512_transform_avx(struct sha512_state *state,
<------><------><------><------>     const u8 *data, int blocks);
static bool avx_usable(void)
{
<------>if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
<------><------>if (boot_cpu_has(X86_FEATURE_AVX))
<------><------><------>pr_info("AVX detected but unusable.\n");
<------><------>return false;
<------>}
 
<------>return true;
}
 
static int sha512_avx_update(struct shash_desc *desc, const u8 *data,
<------><------>       unsigned int len)
{
<------>return sha512_update(desc, data, len, sha512_transform_avx);
}
 
static int sha512_avx_finup(struct shash_desc *desc, const u8 *data,
<------>      unsigned int len, u8 *out)
{
<------>return sha512_finup(desc, data, len, out, sha512_transform_avx);
}
 
/* Add padding and return the message digest. */
static int sha512_avx_final(struct shash_desc *desc, u8 *out)
{
<------>return sha512_avx_finup(desc, NULL, 0, out);
}
 
static struct shash_alg sha512_avx_algs[] = { {
<------>.digestsize	=	SHA512_DIGEST_SIZE,
<------>.init		=	sha512_base_init,
<------>.update		=	sha512_avx_update,
<------>.final		=	sha512_avx_final,
<------>.finup		=	sha512_avx_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha512",
<------><------>.cra_driver_name =	"sha512-avx",
<------><------>.cra_priority	=	160,
<------><------>.cra_blocksize	=	SHA512_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
},  {
<------>.digestsize	=	SHA384_DIGEST_SIZE,
<------>.init		=	sha384_base_init,
<------>.update		=	sha512_avx_update,
<------>.final		=	sha512_avx_final,
<------>.finup		=	sha512_avx_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha384",
<------><------>.cra_driver_name =	"sha384-avx",
<------><------>.cra_priority	=	160,
<------><------>.cra_blocksize	=	SHA384_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
} };
 
static int register_sha512_avx(void)
{
<------>if (avx_usable())
<------><------>return crypto_register_shashes(sha512_avx_algs,
<------><------><------>ARRAY_SIZE(sha512_avx_algs));
<------>return 0;
}
 
static void unregister_sha512_avx(void)
{
<------>if (avx_usable())
<------><------>crypto_unregister_shashes(sha512_avx_algs,
<------><------><------>ARRAY_SIZE(sha512_avx_algs));
}
 
asmlinkage void sha512_transform_rorx(struct sha512_state *state,
<------><------><------><------>      const u8 *data, int blocks);
 
static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
<------><------>       unsigned int len)
{
<------>return sha512_update(desc, data, len, sha512_transform_rorx);
}
 
static int sha512_avx2_finup(struct shash_desc *desc, const u8 *data,
<------>      unsigned int len, u8 *out)
{
<------>return sha512_finup(desc, data, len, out, sha512_transform_rorx);
}
 
/* Add padding and return the message digest. */
static int sha512_avx2_final(struct shash_desc *desc, u8 *out)
{
<------>return sha512_avx2_finup(desc, NULL, 0, out);
}
 
static struct shash_alg sha512_avx2_algs[] = { {
<------>.digestsize	=	SHA512_DIGEST_SIZE,
<------>.init		=	sha512_base_init,
<------>.update		=	sha512_avx2_update,
<------>.final		=	sha512_avx2_final,
<------>.finup		=	sha512_avx2_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha512",
<------><------>.cra_driver_name =	"sha512-avx2",
<------><------>.cra_priority	=	170,
<------><------>.cra_blocksize	=	SHA512_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
},  {
<------>.digestsize	=	SHA384_DIGEST_SIZE,
<------>.init		=	sha384_base_init,
<------>.update		=	sha512_avx2_update,
<------>.final		=	sha512_avx2_final,
<------>.finup		=	sha512_avx2_finup,
<------>.descsize	=	sizeof(struct sha512_state),
<------>.base		=	{
<------><------>.cra_name	=	"sha384",
<------><------>.cra_driver_name =	"sha384-avx2",
<------><------>.cra_priority	=	170,
<------><------>.cra_blocksize	=	SHA384_BLOCK_SIZE,
<------><------>.cra_module	=	THIS_MODULE,
<------>}
} };
 
static bool avx2_usable(void)
{
<------>if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) &&
<------><------>    boot_cpu_has(X86_FEATURE_BMI2))
<------><------>return true;
 
<------>return false;
}
 
static int register_sha512_avx2(void)
{
<------>if (avx2_usable())
<------><------>return crypto_register_shashes(sha512_avx2_algs,
<------><------><------>ARRAY_SIZE(sha512_avx2_algs));
<------>return 0;
}
 
static void unregister_sha512_avx2(void)
{
<------>if (avx2_usable())
<------><------>crypto_unregister_shashes(sha512_avx2_algs,
<------><------><------>ARRAY_SIZE(sha512_avx2_algs));
}
 
static int __init sha512_ssse3_mod_init(void)
{
 
<------>if (register_sha512_ssse3())
<------><------>goto fail;
 
<------>if (register_sha512_avx()) {
<------><------>unregister_sha512_ssse3();
<------><------>goto fail;
<------>}
 
<------>if (register_sha512_avx2()) {
<------><------>unregister_sha512_avx();
<------><------>unregister_sha512_ssse3();
<------><------>goto fail;
<------>}
 
<------>return 0;
fail:
<------>return -ENODEV;
}
 
static void __exit sha512_ssse3_mod_fini(void)
{
<------>unregister_sha512_avx2();
<------>unregister_sha512_avx();
<------>unregister_sha512_ssse3();
}
 
module_init(sha512_ssse3_mod_init);
module_exit(sha512_ssse3_mod_fini);
 
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, Supplemental SSE3 accelerated");
 
MODULE_ALIAS_CRYPTO("sha512");
MODULE_ALIAS_CRYPTO("sha512-ssse3");
MODULE_ALIAS_CRYPTO("sha512-avx");
MODULE_ALIAS_CRYPTO("sha512-avx2");
MODULE_ALIAS_CRYPTO("sha384");
MODULE_ALIAS_CRYPTO("sha384-ssse3");
MODULE_ALIAS_CRYPTO("sha384-avx");
MODULE_ALIAS_CRYPTO("sha384-avx2");
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