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c9e5ac0ab9
Instead of exposing the mips-optimized MD5 code via mips-specific crypto_shash algorithms, instead just implement the md5_blocks() library function. This is much simpler, it makes the MD5 library functions be mips-optimized, and it fixes the longstanding issue where the mips-optimized MD5 code was disabled by default. MD5 still remains available through crypto_shash, but individual architectures no longer need to handle it. Note: to see the diff from arch/mips/cavium-octeon/crypto/octeon-md5.c to lib/crypto/mips/md5.h, view this commit with 'git show -M10'. Link: https://lore.kernel.org/r/20250805222855.10362-3-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
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* Cryptographic API.
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*
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* MD5 Message Digest Algorithm (RFC1321).
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*
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* Adapted for OCTEON by Aaro Koskinen <aaro.koskinen@iki.fi>.
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*
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* Based on crypto/md5.c, which is:
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*
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* Derived from cryptoapi implementation, originally based on the
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* public domain implementation written by Colin Plumb in 1993.
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*
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* Copyright (c) Cryptoapi developers.
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* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <asm/octeon/crypto.h>
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#include <asm/octeon/octeon.h>
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/*
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* We pass everything as 64-bit. OCTEON can handle misaligned data.
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*/
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static void md5_blocks(struct md5_block_state *state,
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const u8 *data, size_t nblocks)
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{
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struct octeon_cop2_state cop2_state;
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u64 *state64 = (u64 *)state;
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unsigned long flags;
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if (!octeon_has_crypto())
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return md5_blocks_generic(state, data, nblocks);
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cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
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flags = octeon_crypto_enable(&cop2_state);
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write_octeon_64bit_hash_dword(state64[0], 0);
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write_octeon_64bit_hash_dword(state64[1], 1);
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do {
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const u64 *block = (const u64 *)data;
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write_octeon_64bit_block_dword(block[0], 0);
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write_octeon_64bit_block_dword(block[1], 1);
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write_octeon_64bit_block_dword(block[2], 2);
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write_octeon_64bit_block_dword(block[3], 3);
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write_octeon_64bit_block_dword(block[4], 4);
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write_octeon_64bit_block_dword(block[5], 5);
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write_octeon_64bit_block_dword(block[6], 6);
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octeon_md5_start(block[7]);
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data += MD5_BLOCK_SIZE;
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} while (--nblocks);
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state64[0] = read_octeon_64bit_hash_dword(0);
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state64[1] = read_octeon_64bit_hash_dword(1);
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octeon_crypto_disable(&cop2_state, flags);
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le32_to_cpu_array(state->h, ARRAY_SIZE(state->h));
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}
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