crypto: x86/aegis128 - don't bother with special code for aligned data

Browse source

Remove the AEGIS assembly code paths that were "optimized" to operate on
16-byte aligned data using movdqa, and instead just use the code paths
that use movdqu and can handle data with any alignment.

This does not reduce performance.  movdqa is basically a historical
artifact; on aligned data, movdqu and movdqa have had the same
performance since Intel Nehalem (2008) and AMD Bulldozer (2011).  And
code that requires AES-NI cannot run on CPUs older than those anyway.

Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

...

This commit is contained in:

Eric Biggers 2024-10-16 17:00:45 -07:00 • committed by Herbert Xu

parent b8d2e7bac3

commit 595bca25a6

1 changed files with 22 additions and 100 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

122

arch/x86/crypto/aegis128-aesni-asm.S

View file