1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
32 	sctx->state[0] = SHA224_H0;  in sha224_sparc64_init()
33 	sctx->state[1] = SHA224_H1;  in sha224_sparc64_init()
34 	sctx->state[2] = SHA224_H2;  in sha224_sparc64_init()
35 	sctx->state[3] = SHA224_H3;  in sha224_sparc64_init()
36 	sctx->state[4] = SHA224_H4;  in sha224_sparc64_init()
37 	sctx->state[5] = SHA224_H5;  in sha224_sparc64_init()
38 	sctx->state[6] = SHA224_H6;  in sha224_sparc64_init()
39 	sctx->state[7] = SHA224_H7;  in sha224_sparc64_init()
40 	sctx->count = 0;  in sha224_sparc64_init()
48 	sctx->state[0] = SHA256_H0;  in sha256_sparc64_init()
49 	sctx->state[1] = SHA256_H1;  in sha256_sparc64_init()
50 	sctx->state[2] = SHA256_H2;  in sha256_sparc64_init()
51 	sctx->state[3] = SHA256_H3;  in sha256_sparc64_init()
52 	sctx->state[4] = SHA256_H4;  in sha256_sparc64_init()
53 	sctx->state[5] = SHA256_H5;  in sha256_sparc64_init()
54 	sctx->state[6] = SHA256_H6;  in sha256_sparc64_init()
55 	sctx->state[7] = SHA256_H7;  in sha256_sparc64_init()
56 	sctx->count = 0;  in sha256_sparc64_init()
66 	sctx->count += len;  in __sha256_sparc64_update()
68 		done = SHA256_BLOCK_SIZE - partial;  in __sha256_sparc64_update()
69 		memcpy(sctx->buf + partial, data, done);  in __sha256_sparc64_update()
70 		sha256_sparc64_transform(sctx->state, sctx->buf, 1);  in __sha256_sparc64_update()
72 	if (len - done >= SHA256_BLOCK_SIZE) {  in __sha256_sparc64_update()
73 		const unsigned int rounds = (len - done) / SHA256_BLOCK_SIZE;  in __sha256_sparc64_update()
75 		sha256_sparc64_transform(sctx->state, data + done, rounds);  in __sha256_sparc64_update()
79 	memcpy(sctx->buf, data + done, len - done);  in __sha256_sparc64_update()
86 	unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;  in sha256_sparc64_update()
90 		sctx->count += len;  in sha256_sparc64_update()
91 		memcpy(sctx->buf + partial, data, len);  in sha256_sparc64_update()
106 	bits = cpu_to_be64(sctx->count << 3);  in sha256_sparc64_final()
109 	index = sctx->count % SHA256_BLOCK_SIZE;  in sha256_sparc64_final()
110 	padlen = (index < 56) ? (56 - index) : ((SHA256_BLOCK_SIZE+56) - index);  in sha256_sparc64_final()
114 		sctx->count += padlen;  in sha256_sparc64_final()
115 		memcpy(sctx->buf + index, padding, padlen);  in sha256_sparc64_final()
123 		dst[i] = cpu_to_be32(sctx->state[i]);  in sha256_sparc64_final()
170 		.cra_driver_name=	"sha256-sparc64",
185 		.cra_driver_name=	"sha224-sparc64",
219 		pr_info("Using sparc64 sha256 opcode optimized SHA-256/SHA-224 implementation\n");  in sha256_sparc64_mod_init()
223 	return -ENODEV;  in sha256_sparc64_mod_init()
236 MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 opcode accelerated");