diff options
| -rw-r--r-- | arch/sparc/crypto/Kconfig | 10 | ||||
| -rw-r--r-- | arch/sparc/crypto/Makefile | 4 | ||||
| -rw-r--r-- | arch/sparc/crypto/md5_glue.c | 174 | ||||
| -rw-r--r-- | lib/crypto/Kconfig | 1 | ||||
| -rw-r--r-- | lib/crypto/Makefile | 1 | ||||
| -rw-r--r-- | lib/crypto/sparc/md5.h | 48 | ||||
| -rw-r--r-- | lib/crypto/sparc/md5_asm.S (renamed from arch/sparc/crypto/md5_asm.S) | 0 |
7 files changed, 50 insertions, 188 deletions
diff --git a/arch/sparc/crypto/Kconfig b/arch/sparc/crypto/Kconfig index f5b2e720fec3..f755da979534 100644 --- a/arch/sparc/crypto/Kconfig +++ b/arch/sparc/crypto/Kconfig @@ -16,16 +16,6 @@ config CRYPTO_DES_SPARC64 Architecture: sparc64 -config CRYPTO_MD5_SPARC64 - tristate "Digests: MD5" - depends on SPARC64 - select CRYPTO_MD5 - select CRYPTO_HASH - help - MD5 message digest algorithm (RFC1321) - - Architecture: sparc64 using crypto instructions, when available - config CRYPTO_AES_SPARC64 tristate "Ciphers: AES, modes: ECB, CBC, CTR" depends on SPARC64 diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile index 0d05a17988c4..7b4796842ddd 100644 --- a/arch/sparc/crypto/Makefile +++ b/arch/sparc/crypto/Makefile @@ -3,14 +3,10 @@ # Arch-specific CryptoAPI modules. # -obj-$(CONFIG_CRYPTO_MD5_SPARC64) += md5-sparc64.o - obj-$(CONFIG_CRYPTO_AES_SPARC64) += aes-sparc64.o obj-$(CONFIG_CRYPTO_DES_SPARC64) += des-sparc64.o obj-$(CONFIG_CRYPTO_CAMELLIA_SPARC64) += camellia-sparc64.o -md5-sparc64-y := md5_asm.o md5_glue.o - aes-sparc64-y := aes_asm.o aes_glue.o des-sparc64-y := des_asm.o des_glue.o camellia-sparc64-y := camellia_asm.o camellia_glue.o diff --git a/arch/sparc/crypto/md5_glue.c b/arch/sparc/crypto/md5_glue.c deleted file mode 100644 index b3615f0cdf62..000000000000 --- a/arch/sparc/crypto/md5_glue.c +++ /dev/null @@ -1,174 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* Glue code for MD5 hashing optimized for sparc64 crypto opcodes. - * - * This is based largely upon arch/x86/crypto/sha1_ssse3_glue.c - * and crypto/md5.c which are: - * - * Copyright (c) Alan Smithee. - * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk> - * Copyright (c) Jean-Francois Dive <jef@linuxbe.org> - * Copyright (c) Mathias Krause <minipli@googlemail.com> - * Copyright (c) Cryptoapi developers. - * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <asm/elf.h> -#include <asm/opcodes.h> -#include <asm/pstate.h> -#include <crypto/internal/hash.h> -#include <crypto/md5.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/unaligned.h> - -struct sparc_md5_state { - __le32 hash[MD5_HASH_WORDS]; - u64 byte_count; -}; - -asmlinkage void md5_sparc64_transform(__le32 *digest, const char *data, - unsigned int rounds); - -static int md5_sparc64_init(struct shash_desc *desc) -{ - struct sparc_md5_state *mctx = shash_desc_ctx(desc); - - mctx->hash[0] = cpu_to_le32(MD5_H0); - mctx->hash[1] = cpu_to_le32(MD5_H1); - mctx->hash[2] = cpu_to_le32(MD5_H2); - mctx->hash[3] = cpu_to_le32(MD5_H3); - mctx->byte_count = 0; - - return 0; -} - -static int md5_sparc64_update(struct shash_desc *desc, const u8 *data, - unsigned int len) -{ - struct sparc_md5_state *sctx = shash_desc_ctx(desc); - - sctx->byte_count += round_down(len, MD5_HMAC_BLOCK_SIZE); - md5_sparc64_transform(sctx->hash, data, len / MD5_HMAC_BLOCK_SIZE); - return len - round_down(len, MD5_HMAC_BLOCK_SIZE); -} - -/* Add padding and return the message digest. */ -static int md5_sparc64_finup(struct shash_desc *desc, const u8 *src, - unsigned int offset, u8 *out) -{ - struct sparc_md5_state *sctx = shash_desc_ctx(desc); - __le64 block[MD5_BLOCK_WORDS] = {}; - u8 *p = memcpy(block, src, offset); - __le32 *dst = (__le32 *)out; - __le64 *pbits; - int i; - - src = p; - p += offset; - *p++ = 0x80; - sctx->byte_count += offset; - pbits = &block[(MD5_BLOCK_WORDS / (offset > 55 ? 1 : 2)) - 1]; - *pbits = cpu_to_le64(sctx->byte_count << 3); - md5_sparc64_transform(sctx->hash, src, (pbits - block + 1) / 8); - memzero_explicit(block, sizeof(block)); - - /* Store state in digest */ - for (i = 0; i < MD5_HASH_WORDS; i++) - dst[i] = sctx->hash[i]; - - return 0; -} - -static int md5_sparc64_export(struct shash_desc *desc, void *out) -{ - struct sparc_md5_state *sctx = shash_desc_ctx(desc); - union { - u8 *u8; - u32 *u32; - u64 *u64; - } p = { .u8 = out }; - int i; - - for (i = 0; i < MD5_HASH_WORDS; i++) - put_unaligned(le32_to_cpu(sctx->hash[i]), p.u32++); - put_unaligned(sctx->byte_count, p.u64); - return 0; -} - -static int md5_sparc64_import(struct shash_desc *desc, const void *in) -{ - struct sparc_md5_state *sctx = shash_desc_ctx(desc); - union { - const u8 *u8; - const u32 *u32; - const u64 *u64; - } p = { .u8 = in }; - int i; - - for (i = 0; i < MD5_HASH_WORDS; i++) - sctx->hash[i] = cpu_to_le32(get_unaligned(p.u32++)); - sctx->byte_count = get_unaligned(p.u64); - return 0; -} - -static struct shash_alg alg = { - .digestsize = MD5_DIGEST_SIZE, - .init = md5_sparc64_init, - .update = md5_sparc64_update, - .finup = md5_sparc64_finup, - .export = md5_sparc64_export, - .import = md5_sparc64_import, - .descsize = sizeof(struct sparc_md5_state), - .statesize = sizeof(struct sparc_md5_state), - .base = { - .cra_name = "md5", - .cra_driver_name= "md5-sparc64", - .cra_priority = SPARC_CR_OPCODE_PRIORITY, - .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY, - .cra_blocksize = MD5_HMAC_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -}; - -static bool __init sparc64_has_md5_opcode(void) -{ - unsigned long cfr; - - if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO)) - return false; - - __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr)); - if (!(cfr & CFR_MD5)) - return false; - - return true; -} - -static int __init md5_sparc64_mod_init(void) -{ - if (sparc64_has_md5_opcode()) { - pr_info("Using sparc64 md5 opcode optimized MD5 implementation\n"); - return crypto_register_shash(&alg); - } - pr_info("sparc64 md5 opcode not available.\n"); - return -ENODEV; -} - -static void __exit md5_sparc64_mod_fini(void) -{ - crypto_unregister_shash(&alg); -} - -module_init(md5_sparc64_mod_init); -module_exit(md5_sparc64_mod_fini); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("MD5 Message Digest Algorithm, sparc64 md5 opcode accelerated"); - -MODULE_ALIAS_CRYPTO("md5"); - -#include "crop_devid.c" diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig index 7334ddc70e59..79b848448e07 100644 --- a/lib/crypto/Kconfig +++ b/lib/crypto/Kconfig @@ -112,6 +112,7 @@ config CRYPTO_LIB_MD5_ARCH depends on CRYPTO_LIB_MD5 && !UML default y if MIPS && CPU_CAVIUM_OCTEON default y if PPC + default y if SPARC64 config CRYPTO_LIB_POLY1305_RSIZE int diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile index b3986dde676b..d362636a22d3 100644 --- a/lib/crypto/Makefile +++ b/lib/crypto/Makefile @@ -66,6 +66,7 @@ libmd5-y := md5.o ifeq ($(CONFIG_CRYPTO_LIB_MD5_ARCH),y) CFLAGS_md5.o += -I$(src)/$(SRCARCH) libmd5-$(CONFIG_PPC) += powerpc/md5-asm.o +libmd5-$(CONFIG_SPARC) += sparc/md5_asm.o endif # CONFIG_CRYPTO_LIB_MD5_ARCH ################################################################################ diff --git a/lib/crypto/sparc/md5.h b/lib/crypto/sparc/md5.h new file mode 100644 index 000000000000..3f1b0ed8c0b3 --- /dev/null +++ b/lib/crypto/sparc/md5.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * MD5 accelerated using the sparc64 crypto opcodes + * + * Copyright (c) Alan Smithee. + * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk> + * Copyright (c) Jean-Francois Dive <jef@linuxbe.org> + * Copyright (c) Mathias Krause <minipli@googlemail.com> + * Copyright (c) Cryptoapi developers. + * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> + */ + +#include <asm/elf.h> +#include <asm/opcodes.h> +#include <asm/pstate.h> + +static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_md5_opcodes); + +asmlinkage void md5_sparc64_transform(struct md5_block_state *state, + const u8 *data, size_t nblocks); + +static void md5_blocks(struct md5_block_state *state, + const u8 *data, size_t nblocks) +{ + if (static_branch_likely(&have_md5_opcodes)) { + cpu_to_le32_array(state->h, ARRAY_SIZE(state->h)); + md5_sparc64_transform(state, data, nblocks); + le32_to_cpu_array(state->h, ARRAY_SIZE(state->h)); + } else { + md5_blocks_generic(state, data, nblocks); + } +} + +#define md5_mod_init_arch md5_mod_init_arch +static inline void md5_mod_init_arch(void) +{ + unsigned long cfr; + + if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO)) + return; + + __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr)); + if (!(cfr & CFR_MD5)) + return; + + static_branch_enable(&have_md5_opcodes); + pr_info("Using sparc64 md5 opcode optimized MD5 implementation\n"); +} diff --git a/arch/sparc/crypto/md5_asm.S b/lib/crypto/sparc/md5_asm.S index 60b544e4d205..60b544e4d205 100644 --- a/arch/sparc/crypto/md5_asm.S +++ b/lib/crypto/sparc/md5_asm.S |