Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* Glue code for SHA256 hashing optimized for sparc64 crypto opcodes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * This is based largely upon crypto/sha256_generic.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * SHA224 Support Copyright 2007 Intel Corporation <jonathan.lynch@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <crypto/sha.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <asm/pstate.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <asm/elf.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include "opcodes.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) asmlinkage void sha256_sparc64_transform(u32 *digest, const char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 					 unsigned int rounds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) static int sha224_sparc64_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	sctx->state[0] = SHA224_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	sctx->state[1] = SHA224_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	sctx->state[2] = SHA224_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	sctx->state[3] = SHA224_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	sctx->state[4] = SHA224_H4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	sctx->state[5] = SHA224_H5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	sctx->state[6] = SHA224_H6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	sctx->state[7] = SHA224_H7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	sctx->count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static int sha256_sparc64_init(struct shash_desc *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	sctx->state[0] = SHA256_H0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	sctx->state[1] = SHA256_H1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	sctx->state[2] = SHA256_H2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	sctx->state[3] = SHA256_H3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	sctx->state[4] = SHA256_H4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	sctx->state[5] = SHA256_H5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	sctx->state[6] = SHA256_H6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	sctx->state[7] = SHA256_H7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	sctx->count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) static void __sha256_sparc64_update(struct sha256_state *sctx, const u8 *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 				    unsigned int len, unsigned int partial)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	unsigned int done = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	sctx->count += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (partial) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		done = SHA256_BLOCK_SIZE - partial;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		memcpy(sctx->buf + partial, data, done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		sha256_sparc64_transform(sctx->state, sctx->buf, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	if (len - done >= SHA256_BLOCK_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		const unsigned int rounds = (len - done) / SHA256_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		sha256_sparc64_transform(sctx->state, data + done, rounds);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		done += rounds * SHA256_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	memcpy(sctx->buf, data + done, len - done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) static int sha256_sparc64_update(struct shash_desc *desc, const u8 *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 				 unsigned int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	/* Handle the fast case right here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	if (partial + len < SHA256_BLOCK_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		sctx->count += len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		memcpy(sctx->buf + partial, data, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		__sha256_sparc64_update(sctx, data, len, partial);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static int sha256_sparc64_final(struct shash_desc *desc, u8 *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	unsigned int i, index, padlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	__be32 *dst = (__be32 *)out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	__be64 bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	static const u8 padding[SHA256_BLOCK_SIZE] = { 0x80, };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	bits = cpu_to_be64(sctx->count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	/* Pad out to 56 mod 64 and append length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	index = sctx->count % SHA256_BLOCK_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	padlen = (index < 56) ? (56 - index) : ((SHA256_BLOCK_SIZE+56) - index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	/* We need to fill a whole block for __sha256_sparc64_update() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	if (padlen <= 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		sctx->count += padlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		memcpy(sctx->buf + index, padding, padlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		__sha256_sparc64_update(sctx, padding, padlen, index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	__sha256_sparc64_update(sctx, (const u8 *)&bits, sizeof(bits), 56);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	/* Store state in digest */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	for (i = 0; i < 8; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		dst[i] = cpu_to_be32(sctx->state[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	/* Wipe context */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	memset(sctx, 0, sizeof(*sctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int sha224_sparc64_final(struct shash_desc *desc, u8 *hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	u8 D[SHA256_DIGEST_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	sha256_sparc64_final(desc, D);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	memcpy(hash, D, SHA224_DIGEST_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	memzero_explicit(D, SHA256_DIGEST_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static int sha256_sparc64_export(struct shash_desc *desc, void *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	memcpy(out, sctx, sizeof(*sctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static int sha256_sparc64_import(struct shash_desc *desc, const void *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	struct sha256_state *sctx = shash_desc_ctx(desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	memcpy(sctx, in, sizeof(*sctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static struct shash_alg sha256_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	.digestsize	=	SHA256_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	.init		=	sha256_sparc64_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	.update		=	sha256_sparc64_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	.final		=	sha256_sparc64_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	.export		=	sha256_sparc64_export,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	.import		=	sha256_sparc64_import,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	.descsize	=	sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	.statesize	=	sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	.base		=	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		.cra_name	=	"sha256",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		.cra_driver_name=	"sha256-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		.cra_priority	=	SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		.cra_blocksize	=	SHA256_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		.cra_module	=	THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static struct shash_alg sha224_alg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	.digestsize	=	SHA224_DIGEST_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	.init		=	sha224_sparc64_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	.update		=	sha256_sparc64_update,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	.final		=	sha224_sparc64_final,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	.descsize	=	sizeof(struct sha256_state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	.base		=	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		.cra_name	=	"sha224",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		.cra_driver_name=	"sha224-sparc64",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		.cra_priority	=	SPARC_CR_OPCODE_PRIORITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		.cra_blocksize	=	SHA224_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		.cra_module	=	THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static bool __init sparc64_has_sha256_opcode(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	unsigned long cfr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	if (!(cfr & CFR_SHA256))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static int __init sha256_sparc64_mod_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (sparc64_has_sha256_opcode()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		int ret = crypto_register_shash(&sha224_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		ret = crypto_register_shash(&sha256_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			crypto_unregister_shash(&sha224_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		pr_info("Using sparc64 sha256 opcode optimized SHA-256/SHA-224 implementation\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	pr_info("sparc64 sha256 opcode not available.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static void __exit sha256_sparc64_mod_fini(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	crypto_unregister_shash(&sha224_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	crypto_unregister_shash(&sha256_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) module_init(sha256_sparc64_mod_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) module_exit(sha256_sparc64_mod_fini);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) MODULE_DESCRIPTION("SHA-224 and SHA-256 Secure Hash Algorithm, sparc64 sha256 opcode accelerated");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) MODULE_ALIAS_CRYPTO("sha224");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) MODULE_ALIAS_CRYPTO("sha256");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #include "crop_devid.c"