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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2014-07-29 17:14:14 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-08-02 08:51:47 +0100 |
| commit | 604682551aa511e00e57706ad5d9fcf955ee0323 (patch) | |
| tree | ed97c0b46b271b45dd02209482b7ea81d594728d /arch/arm/crypto/sha1_glue.c | |
| parent | 1f8673d31a999ed7e20d9f66fcdad39e39f6b276 (diff) | |
| download | linux-604682551aa511e00e57706ad5d9fcf955ee0323.tar.gz linux-604682551aa511e00e57706ad5d9fcf955ee0323.tar.xz | |
ARM: 8119/1: crypto: sha1: add ARM NEON implementation
This patch adds ARM NEON assembly implementation of SHA-1 algorithm.
tcrypt benchmark results on Cortex-A8, sha1-arm-asm vs sha1-neon-asm:
block-size bytes/update old-vs-new
16 16 1.04x
64 16 1.02x
64 64 1.05x
256 16 1.03x
256 64 1.04x
256 256 1.30x
1024 16 1.03x
1024 256 1.36x
1024 1024 1.52x
2048 16 1.03x
2048 256 1.39x
2048 1024 1.55x
2048 2048 1.59x
4096 16 1.03x
4096 256 1.40x
4096 1024 1.57x
4096 4096 1.62x
8192 16 1.03x
8192 256 1.40x
8192 1024 1.58x
8192 4096 1.63x
8192 8192 1.63x
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/crypto/sha1_glue.c')
| -rw-r--r-- | arch/arm/crypto/sha1_glue.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/crypto/sha1_glue.c b/arch/arm/crypto/sha1_glue.c index c494e579ffc3..84f2a756588b 100644 --- a/arch/arm/crypto/sha1_glue.c +++ b/arch/arm/crypto/sha1_glue.c @@ -23,6 +23,7 @@ #include <linux/types.h> #include <crypto/sha.h> #include <asm/byteorder.h> +#include <asm/crypto/sha1.h> asmlinkage void sha1_block_data_order(u32 *digest, @@ -65,8 +66,8 @@ static int __sha1_update(struct sha1_state *sctx, const u8 *data, } -static int sha1_update(struct shash_desc *desc, const u8 *data, - unsigned int len) +int sha1_update_arm(struct shash_desc *desc, const u8 *data, + unsigned int len) { struct sha1_state *sctx = shash_desc_ctx(desc); unsigned int partial = sctx->count % SHA1_BLOCK_SIZE; @@ -81,6 +82,7 @@ static int sha1_update(struct shash_desc *desc, const u8 *data, res = __sha1_update(sctx, data, len, partial); return res; } +EXPORT_SYMBOL_GPL(sha1_update_arm); /* Add padding and return the message digest. */ @@ -135,7 +137,7 @@ static int sha1_import(struct shash_desc *desc, const void *in) static struct shash_alg alg = { .digestsize = SHA1_DIGEST_SIZE, .init = sha1_init, - .update = sha1_update, + .update = sha1_update_arm, .final = sha1_final, .export = sha1_export, .import = sha1_import, |