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| author | tim <tim.c.chen@linux.intel.com> | 2015-09-10 22:27:20 (GMT) |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-09-21 14:01:06 (GMT) |
| commit | 95fca7df0b4964fbe3fe159e3d6e681e6b5b7a53 (patch) | |
| tree | 188d3095578102fba0a385c6d4745ea744a0cbf8 /arch/x86/crypto/sha1_ssse3_glue.c | |
| parent | 600a2334e83d22e5c3f7ff2581f545bfc354d206 (diff) | |
| download | linux-95fca7df0b4964fbe3fe159e3d6e681e6b5b7a53.tar.xz | |
crypto: x86/sha - glue code for Intel SHA extensions optimized SHA1 & SHA256
This patch adds the glue code to detect and utilize the Intel SHA
extensions optimized SHA1 and SHA256 update transforms when available.
This code has been tested on Broxton for functionality.
Originally-by: Chandramouli Narayanan <mouli_7982@yahoo.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/x86/crypto/sha1_ssse3_glue.c')
| -rw-r--r-- | arch/x86/crypto/sha1_ssse3_glue.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c index 7c48e8b..98be8cc 100644 --- a/arch/x86/crypto/sha1_ssse3_glue.c +++ b/arch/x86/crypto/sha1_ssse3_glue.c @@ -44,6 +44,10 @@ asmlinkage void sha1_transform_avx(u32 *digest, const char *data, asmlinkage void sha1_transform_avx2(u32 *digest, const char *data, unsigned int rounds); #endif +#ifdef CONFIG_AS_SHA1_NI +asmlinkage void sha1_ni_transform(u32 *digest, const char *data, + unsigned int rounds); +#endif static void (*sha1_transform_asm)(u32 *, const char *, unsigned int); @@ -166,12 +170,18 @@ static int __init sha1_ssse3_mod_init(void) #endif } #endif +#ifdef CONFIG_AS_SHA1_NI + if (boot_cpu_has(X86_FEATURE_SHA_NI)) { + sha1_transform_asm = sha1_ni_transform; + algo_name = "SHA-NI"; + } +#endif if (sha1_transform_asm) { pr_info("Using %s optimized SHA-1 implementation\n", algo_name); return crypto_register_shash(&alg); } - pr_info("Neither AVX nor AVX2 nor SSSE3 is available/usable.\n"); + pr_info("Neither AVX nor AVX2 nor SSSE3/SHA-NI is available/usable.\n"); return -ENODEV; } |