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// SPDX-License-Identifier: GPL-2.0-only
/*
* sha512-neon-glue.c - accelerated SHA-384/512 for ARM NEON
*
* Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
*/
#include <asm/neon.h>
#include <crypto/internal/hash.h>
#include <crypto/sha2.h>
#include <crypto/sha512_base.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include "sha512.h"
MODULE_ALIAS_CRYPTO("sha384-neon");
MODULE_ALIAS_CRYPTO("sha512-neon");
asmlinkage void sha512_block_data_order_neon(struct sha512_state *state,
const u8 *src, int blocks);
static int sha512_neon_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
int remain;
kernel_neon_begin();
remain = sha512_base_do_update_blocks(desc, data, len,
sha512_block_data_order_neon);
kernel_neon_end();
return remain;
}
static int sha512_neon_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
kernel_neon_begin();
sha512_base_do_finup(desc, data, len, sha512_block_data_order_neon);
kernel_neon_end();
return sha512_base_finish(desc, out);
}
struct shash_alg sha512_neon_algs[] = { {
.init = sha384_base_init,
.update = sha512_neon_update,
.finup = sha512_neon_finup,
.descsize = SHA512_STATE_SIZE,
.digestsize = SHA384_DIGEST_SIZE,
.base = {
.cra_name = "sha384",
.cra_driver_name = "sha384-neon",
.cra_priority = 300,
.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
}, {
.init = sha512_base_init,
.update = sha512_neon_update,
.finup = sha512_neon_finup,
.descsize = SHA512_STATE_SIZE,
.digestsize = SHA512_DIGEST_SIZE,
.base = {
.cra_name = "sha512",
.cra_driver_name = "sha512-neon",
.cra_priority = 300,
.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
} };
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