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| author | Ard Biesheuvel <ardb@kernel.org> | 2019-11-08 13:22:10 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-11-17 09:02:39 +0800 |
| commit | 84e03fa39fbe95a5567d43bff458c6d3b3a23ad1 (patch) | |
| tree | a778b9890a4fbcf41e2228105f11b3a174eda239 /crypto | |
| parent | 28e8d89b1ce8d2e7badfb5f69971dd635acb8863 (diff) | |
| download | linux-84e03fa39fbe95a5567d43bff458c6d3b3a23ad1.tar.bz2 | |
crypto: x86/chacha - expose SIMD ChaCha routine as library function
Wire the existing x86 SIMD ChaCha code into the new ChaCha library
interface, so that users of the library interface will get the
accelerated version when available.
Given that calls into the library API will always go through the
routines in this module if it is enabled, switch to static keys
to select the optimal implementation available (which may be none
at all, in which case we defer to the generic implementation for
all invocations).
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 1abca30ed6ae..07762de1237f 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1437,6 +1437,7 @@ config CRYPTO_CHACHA20_X86_64 depends on X86 && 64BIT select CRYPTO_SKCIPHER select CRYPTO_LIB_CHACHA_GENERIC + select CRYPTO_ARCH_HAVE_LIB_CHACHA help SSSE3, AVX2, and AVX-512VL optimized implementations of the ChaCha20, XChaCha20, and XChaCha12 stream ciphers. |