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| author | Ard Biesheuvel <ardb@kernel.org> | 2019-11-08 13:22:10 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-07-07 13:26:35 +0200 |
| commit | bbef63e18c1ebf7e86b15fd8fc977516db5b560e (patch) | |
| tree | 7fde906ab9902589ce60f8d57e790858a19c7cec | |
| parent | f806491a89f7d62bcb25e3deb03ecf66fb51950d (diff) | |
| download | linux-crypto-bbef63e18c1ebf7e86b15fd8fc977516db5b560e.tar.gz linux-crypto-bbef63e18c1ebf7e86b15fd8fc977516db5b560e.zip | |
crypto: x86/chacha - expose SIMD ChaCha routine as library function
commit 57cc6bc92e387c102c12ad07528c5d33a342ecca upstream.
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>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
| -rw-r--r-- | crypto/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index ef7b0110..1c470ea3 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1418,6 +1418,7 @@ config CRYPTO_CHACHA20_X86_64 depends on X86 && 64BIT select CRYPTO_BLKCIPHER 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. |