1 // SPDX-License-Identifier: GPL-2.0-or-later
5  * SHA-224 and SHA-256 Secure Hash Algorithm.
11  * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
26 #include "octeon-crypto.h"
29  * We pass everything as 64-bit. OCTEON can handle misaligned data.
34 	u64 *hash = (u64 *)sctx->state;  in octeon_sha256_store_hash()
44 	u64 *hash = (u64 *)sctx->state;  in octeon_sha256_read_hash()
70 	sctx->state[0] = SHA224_H0;  in octeon_sha224_init()
71 	sctx->state[1] = SHA224_H1;  in octeon_sha224_init()
72 	sctx->state[2] = SHA224_H2;  in octeon_sha224_init()
73 	sctx->state[3] = SHA224_H3;  in octeon_sha224_init()
74 	sctx->state[4] = SHA224_H4;  in octeon_sha224_init()
75 	sctx->state[5] = SHA224_H5;  in octeon_sha224_init()
76 	sctx->state[6] = SHA224_H6;  in octeon_sha224_init()
77 	sctx->state[7] = SHA224_H7;  in octeon_sha224_init()
78 	sctx->count = 0;  in octeon_sha224_init()
87 	sctx->state[0] = SHA256_H0;  in octeon_sha256_init()
88 	sctx->state[1] = SHA256_H1;  in octeon_sha256_init()
89 	sctx->state[2] = SHA256_H2;  in octeon_sha256_init()
90 	sctx->state[3] = SHA256_H3;  in octeon_sha256_init()
91 	sctx->state[4] = SHA256_H4;  in octeon_sha256_init()
92 	sctx->state[5] = SHA256_H5;  in octeon_sha256_init()
93 	sctx->state[6] = SHA256_H6;  in octeon_sha256_init()
94 	sctx->state[7] = SHA256_H7;  in octeon_sha256_init()
95 	sctx->count = 0;  in octeon_sha256_init()
107 	partial = sctx->count % SHA256_BLOCK_SIZE;  in __octeon_sha256_update()
108 	sctx->count += len;  in __octeon_sha256_update()
114 			done = -partial;  in __octeon_sha256_update()
115 			memcpy(sctx->buf + partial, data,  in __octeon_sha256_update()
117 			src = sctx->buf;  in __octeon_sha256_update()
128 	memcpy(sctx->buf + partial, src, len - done);  in __octeon_sha256_update()
143 	if ((sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)  in octeon_sha256_update()
170 	bits = cpu_to_be64(sctx->count << 3);  in octeon_sha256_final()
173 	index = sctx->count & 0x3f;  in octeon_sha256_final()
174 	pad_len = (index < 56) ? (56 - index) : ((64+56) - index);  in octeon_sha256_final()
189 		dst[i] = cpu_to_be32(sctx->state[i]);  in octeon_sha256_final()
236 		.cra_driver_name=	"octeon-sha256",
249 		.cra_driver_name=	"octeon-sha224",
258 		return -ENOTSUPP;  in octeon_sha256_mod_init()
273 MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm (OCTEON)");