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Diffstat (limited to 'arch/mips/cavium-octeon/crypto/octeon-sha1.c')
-rw-r--r--arch/mips/cavium-octeon/crypto/octeon-sha1.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/arch/mips/cavium-octeon/crypto/octeon-sha1.c b/arch/mips/cavium-octeon/crypto/octeon-sha1.c
deleted file mode 100644
index e70f21a473da..000000000000
--- a/arch/mips/cavium-octeon/crypto/octeon-sha1.c
+++ /dev/null
@@ -1,147 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Cryptographic API.
- *
- * SHA1 Secure Hash Algorithm.
- *
- * Adapted for OCTEON by Aaro Koskinen <aaro.koskinen@iki.fi>.
- *
- * Based on crypto/sha1_generic.c, which is:
- *
- * Copyright (c) Alan Smithee.
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
- */
-
-#include <asm/octeon/octeon.h>
-#include <crypto/internal/hash.h>
-#include <crypto/sha1.h>
-#include <crypto/sha1_base.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include "octeon-crypto.h"
-
-/*
- * We pass everything as 64-bit. OCTEON can handle misaligned data.
- */
-
-static void octeon_sha1_store_hash(struct sha1_state *sctx)
-{
- u64 *hash = (u64 *)sctx->state;
- union {
- u32 word[2];
- u64 dword;
- } hash_tail = { { sctx->state[4], } };
-
- write_octeon_64bit_hash_dword(hash[0], 0);
- write_octeon_64bit_hash_dword(hash[1], 1);
- write_octeon_64bit_hash_dword(hash_tail.dword, 2);
- memzero_explicit(&hash_tail.word[0], sizeof(hash_tail.word[0]));
-}
-
-static void octeon_sha1_read_hash(struct sha1_state *sctx)
-{
- u64 *hash = (u64 *)sctx->state;
- union {
- u32 word[2];
- u64 dword;
- } hash_tail;
-
- hash[0] = read_octeon_64bit_hash_dword(0);
- hash[1] = read_octeon_64bit_hash_dword(1);
- hash_tail.dword = read_octeon_64bit_hash_dword(2);
- sctx->state[4] = hash_tail.word[0];
- memzero_explicit(&hash_tail.dword, sizeof(hash_tail.dword));
-}
-
-static void octeon_sha1_transform(struct sha1_state *sctx, const u8 *src,
- int blocks)
-{
- do {
- const u64 *block = (const u64 *)src;
-
- write_octeon_64bit_block_dword(block[0], 0);
- write_octeon_64bit_block_dword(block[1], 1);
- write_octeon_64bit_block_dword(block[2], 2);
- write_octeon_64bit_block_dword(block[3], 3);
- write_octeon_64bit_block_dword(block[4], 4);
- write_octeon_64bit_block_dword(block[5], 5);
- write_octeon_64bit_block_dword(block[6], 6);
- octeon_sha1_start(block[7]);
-
- src += SHA1_BLOCK_SIZE;
- } while (--blocks);
-}
-
-static int octeon_sha1_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- struct sha1_state *sctx = shash_desc_ctx(desc);
- struct octeon_cop2_state state;
- unsigned long flags;
- int remain;
-
- flags = octeon_crypto_enable(&state);
- octeon_sha1_store_hash(sctx);
-
- remain = sha1_base_do_update_blocks(desc, data, len,
- octeon_sha1_transform);
-
- octeon_sha1_read_hash(sctx);
- octeon_crypto_disable(&state, flags);
- return remain;
-}
-
-static int octeon_sha1_finup(struct shash_desc *desc, const u8 *src,
- unsigned int len, u8 *out)
-{
- struct sha1_state *sctx = shash_desc_ctx(desc);
- struct octeon_cop2_state state;
- unsigned long flags;
-
- flags = octeon_crypto_enable(&state);
- octeon_sha1_store_hash(sctx);
-
- sha1_base_do_finup(desc, src, len, octeon_sha1_transform);
-
- octeon_sha1_read_hash(sctx);
- octeon_crypto_disable(&state, flags);
- return sha1_base_finish(desc, out);
-}
-
-static struct shash_alg octeon_sha1_alg = {
- .digestsize = SHA1_DIGEST_SIZE,
- .init = sha1_base_init,
- .update = octeon_sha1_update,
- .finup = octeon_sha1_finup,
- .descsize = SHA1_STATE_SIZE,
- .base = {
- .cra_name = "sha1",
- .cra_driver_name= "octeon-sha1",
- .cra_priority = OCTEON_CR_OPCODE_PRIORITY,
- .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-};
-
-static int __init octeon_sha1_mod_init(void)
-{
- if (!octeon_has_crypto())
- return -ENOTSUPP;
- return crypto_register_shash(&octeon_sha1_alg);
-}
-
-static void __exit octeon_sha1_mod_fini(void)
-{
- crypto_unregister_shash(&octeon_sha1_alg);
-}
-
-module_init(octeon_sha1_mod_init);
-module_exit(octeon_sha1_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (OCTEON)");
-MODULE_AUTHOR("Aaro Koskinen <aaro.koskinen@iki.fi>");