Commits
Ard Biesheuvel committed f2ca1cbd0fb
crypto: arm64/chacha - optimize for arbitrary length inputs Update the 4-way NEON ChaCha routine so it can handle input of any length >64 bytes in its entirety, rather than having to call into the 1-way routine and/or memcpy()s via temp buffers to handle the tail of a ChaCha invocation that is not a multiple of 256 bytes. On inputs that are a multiple of 256 bytes (and thus in tcrypt benchmarks), performance drops by around 1% on Cortex-A57, while performance for inputs drawn randomly from the range [64, 1024) increases by around 30%. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>