diff options
Diffstat (limited to 'arch/arm/crypto/sha256_neon_glue.c')
| -rw-r--r-- | arch/arm/crypto/sha256_neon_glue.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/arch/arm/crypto/sha256_neon_glue.c b/arch/arm/crypto/sha256_neon_glue.c deleted file mode 100644 index 39ccd658817e..000000000000 --- a/arch/arm/crypto/sha256_neon_glue.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Glue code for the SHA256 Secure Hash Algorithm assembly implementation - * using NEON instructions. - * - * Copyright © 2015 Google Inc. - * - * This file is based on sha512_neon_glue.c: - * Copyright © 2014 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 <crypto/internal/hash.h> -#include <linux/cryptohash.h> -#include <linux/types.h> -#include <linux/string.h> -#include <crypto/sha.h> -#include <crypto/sha256_base.h> -#include <asm/byteorder.h> -#include <asm/simd.h> -#include <asm/neon.h> - -#include "sha256_glue.h" - -asmlinkage void sha256_block_data_order_neon(u32 *digest, const void *data, - unsigned int num_blks); - -static int sha256_update(struct shash_desc *desc, const u8 *data, - unsigned int len) -{ - struct sha256_state *sctx = shash_desc_ctx(desc); - - if (!may_use_simd() || - (sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE) - return crypto_sha256_arm_update(desc, data, len); - - kernel_neon_begin(); - sha256_base_do_update(desc, data, len, - (sha256_block_fn *)sha256_block_data_order_neon); - kernel_neon_end(); - - return 0; -} - -static int sha256_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - if (!may_use_simd()) - return crypto_sha256_arm_finup(desc, data, len, out); - - kernel_neon_begin(); - if (len) - sha256_base_do_update(desc, data, len, - (sha256_block_fn *)sha256_block_data_order_neon); - sha256_base_do_finalize(desc, - (sha256_block_fn *)sha256_block_data_order_neon); - kernel_neon_end(); - - return sha256_base_finish(desc, out); -} - -static int sha256_final(struct shash_desc *desc, u8 *out) -{ - return sha256_finup(desc, NULL, 0, out); -} - -struct shash_alg sha256_neon_algs[] = { { - .digestsize = SHA256_DIGEST_SIZE, - .init = sha256_base_init, - .update = sha256_update, - .final = sha256_final, - .finup = sha256_finup, - .descsize = sizeof(struct sha256_state), - .base = { - .cra_name = "sha256", - .cra_driver_name = "sha256-neon", - .cra_priority = 250, - .cra_flags = CRYPTO_ALG_TYPE_SHASH, - .cra_blocksize = SHA256_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -}, { - .digestsize = SHA224_DIGEST_SIZE, - .init = sha224_base_init, - .update = sha256_update, - .final = sha256_final, - .finup = sha256_finup, - .descsize = sizeof(struct sha256_state), - .base = { - .cra_name = "sha224", - .cra_driver_name = "sha224-neon", - .cra_priority = 250, - .cra_flags = CRYPTO_ALG_TYPE_SHASH, - .cra_blocksize = SHA224_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -} }; |
