summaryrefslogtreecommitdiff
path: root/arch/arm/crypto/sha256_glue.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/crypto/sha256_glue.c')
-rw-r--r--arch/arm/crypto/sha256_glue.c117
1 files changed, 0 insertions, 117 deletions
diff --git a/arch/arm/crypto/sha256_glue.c b/arch/arm/crypto/sha256_glue.c
deleted file mode 100644
index f85933fdec75..000000000000
--- a/arch/arm/crypto/sha256_glue.c
+++ /dev/null
@@ -1,117 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Glue code for the SHA256 Secure Hash Algorithm assembly implementation
- * using optimized ARM assembler and NEON instructions.
- *
- * Copyright © 2015 Google Inc.
- *
- * This file is based on sha256_ssse3_glue.c:
- * Copyright (C) 2013 Intel Corporation
- * Author: Tim Chen <tim.c.chen@linux.intel.com>
- */
-
-#include <crypto/internal/hash.h>
-#include <linux/crypto.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <crypto/sha2.h>
-#include <crypto/sha256_base.h>
-#include <asm/simd.h>
-#include <asm/neon.h>
-
-#include "sha256_glue.h"
-
-asmlinkage void sha256_block_data_order(struct sha256_state *state,
- const u8 *data, int num_blks);
-
-int crypto_sha256_arm_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- /* make sure casting to sha256_block_fn() is safe */
- BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
-
- return sha256_base_do_update(desc, data, len, sha256_block_data_order);
-}
-EXPORT_SYMBOL(crypto_sha256_arm_update);
-
-static int crypto_sha256_arm_final(struct shash_desc *desc, u8 *out)
-{
- sha256_base_do_finalize(desc, sha256_block_data_order);
- return sha256_base_finish(desc, out);
-}
-
-int crypto_sha256_arm_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- sha256_base_do_update(desc, data, len, sha256_block_data_order);
- return crypto_sha256_arm_final(desc, out);
-}
-EXPORT_SYMBOL(crypto_sha256_arm_finup);
-
-static struct shash_alg algs[] = { {
- .digestsize = SHA256_DIGEST_SIZE,
- .init = sha256_base_init,
- .update = crypto_sha256_arm_update,
- .final = crypto_sha256_arm_final,
- .finup = crypto_sha256_arm_finup,
- .descsize = sizeof(struct sha256_state),
- .base = {
- .cra_name = "sha256",
- .cra_driver_name = "sha256-asm",
- .cra_priority = 150,
- .cra_blocksize = SHA256_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-}, {
- .digestsize = SHA224_DIGEST_SIZE,
- .init = sha224_base_init,
- .update = crypto_sha256_arm_update,
- .final = crypto_sha256_arm_final,
- .finup = crypto_sha256_arm_finup,
- .descsize = sizeof(struct sha256_state),
- .base = {
- .cra_name = "sha224",
- .cra_driver_name = "sha224-asm",
- .cra_priority = 150,
- .cra_blocksize = SHA224_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-} };
-
-static int __init sha256_mod_init(void)
-{
- int res = crypto_register_shashes(algs, ARRAY_SIZE(algs));
-
- if (res < 0)
- return res;
-
- if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon()) {
- res = crypto_register_shashes(sha256_neon_algs,
- ARRAY_SIZE(sha256_neon_algs));
-
- if (res < 0)
- crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
- }
-
- return res;
-}
-
-static void __exit sha256_mod_fini(void)
-{
- crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
-
- if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && cpu_has_neon())
- crypto_unregister_shashes(sha256_neon_algs,
- ARRAY_SIZE(sha256_neon_algs));
-}
-
-module_init(sha256_mod_init);
-module_exit(sha256_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm (ARM), including NEON");
-
-MODULE_ALIAS_CRYPTO("sha256");