1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
31 	sctx->state[0] = SHA512_H0;  in sha512_sparc64_init()
32 	sctx->state[1] = SHA512_H1;  in sha512_sparc64_init()
33 	sctx->state[2] = SHA512_H2;  in sha512_sparc64_init()
34 	sctx->state[3] = SHA512_H3;  in sha512_sparc64_init()
35 	sctx->state[4] = SHA512_H4;  in sha512_sparc64_init()
36 	sctx->state[5] = SHA512_H5;  in sha512_sparc64_init()
37 	sctx->state[6] = SHA512_H6;  in sha512_sparc64_init()
38 	sctx->state[7] = SHA512_H7;  in sha512_sparc64_init()
39 	sctx->count[0] = sctx->count[1] = 0;  in sha512_sparc64_init()
47 	sctx->state[0] = SHA384_H0;  in sha384_sparc64_init()
48 	sctx->state[1] = SHA384_H1;  in sha384_sparc64_init()
49 	sctx->state[2] = SHA384_H2;  in sha384_sparc64_init()
50 	sctx->state[3] = SHA384_H3;  in sha384_sparc64_init()
51 	sctx->state[4] = SHA384_H4;  in sha384_sparc64_init()
52 	sctx->state[5] = SHA384_H5;  in sha384_sparc64_init()
53 	sctx->state[6] = SHA384_H6;  in sha384_sparc64_init()
54 	sctx->state[7] = SHA384_H7;  in sha384_sparc64_init()
55 	sctx->count[0] = sctx->count[1] = 0;  in sha384_sparc64_init()
65 	if ((sctx->count[0] += len) < len)  in __sha512_sparc64_update()
66 		sctx->count[1]++;  in __sha512_sparc64_update()
68 		done = SHA512_BLOCK_SIZE - partial;  in __sha512_sparc64_update()
69 		memcpy(sctx->buf + partial, data, done);  in __sha512_sparc64_update()
70 		sha512_sparc64_transform(sctx->state, sctx->buf, 1);  in __sha512_sparc64_update()
72 	if (len - done >= SHA512_BLOCK_SIZE) {  in __sha512_sparc64_update()
73 		const unsigned int rounds = (len - done) / SHA512_BLOCK_SIZE;  in __sha512_sparc64_update()
75 		sha512_sparc64_transform(sctx->state, data + done, rounds);  in __sha512_sparc64_update()
79 	memcpy(sctx->buf, data + done, len - done);  in __sha512_sparc64_update()
86 	unsigned int partial = sctx->count[0] % SHA512_BLOCK_SIZE;  in sha512_sparc64_update()
90 		if ((sctx->count[0] += len) < len)  in sha512_sparc64_update()
91 			sctx->count[1]++;  in sha512_sparc64_update()
92 		memcpy(sctx->buf + partial, data, len);  in sha512_sparc64_update()
108 	bits[1] = cpu_to_be64(sctx->count[0] << 3);  in sha512_sparc64_final()
109 	bits[0] = cpu_to_be64(sctx->count[1] << 3 | sctx->count[0] >> 61);  in sha512_sparc64_final()
112 	index = sctx->count[0] % SHA512_BLOCK_SIZE;  in sha512_sparc64_final()
113 	padlen = (index < 112) ? (112 - index) : ((SHA512_BLOCK_SIZE+112) - index);  in sha512_sparc64_final()
117 		if ((sctx->count[0] += padlen) < padlen)  in sha512_sparc64_final()
118 			sctx->count[1]++;  in sha512_sparc64_final()
119 		memcpy(sctx->buf + index, padding, padlen);  in sha512_sparc64_final()
127 		dst[i] = cpu_to_be64(sctx->state[i]);  in sha512_sparc64_final()
155 		.cra_driver_name=	"sha512-sparc64",
170 		.cra_driver_name=	"sha384-sparc64",
204 		pr_info("Using sparc64 sha512 opcode optimized SHA-512/SHA-384 implementation\n");  in sha512_sparc64_mod_init()
208 	return -ENODEV;  in sha512_sparc64_mod_init()
221 MODULE_DESCRIPTION("SHA-384 and SHA-512 Secure Hash Algorithm, sparc64 sha512 opcode accelerated");