Add CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD and a SIMD block function
so that the caller can decide whether to use SIMD.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Export the block functions as GPL only, there is no reason
to let arbitrary modules use these internal functions.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This reverts commit c4741b2305.
Crypto API self-tests no longer run at registration time and now
occur either at late_initcall or upon the first use.
Therefore the premise of the above commit no longer exists. Revert
it and subsequent additions of subsys_initcall and arch_initcall.
Note that lib/crypto calls will stay at subsys_initcall (or rather
downgraded from arch_initcall) because they may need to occur
before Crypto API registration.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Instead of providing crypto_shash algorithms for the arch-optimized
SHA-256 code, instead implement the SHA-256 library. This is much
simpler, it makes the SHA-256 library functions be arch-optimized, and
it fixes the longstanding issue where the arch-optimized SHA-256 was
disabled by default. SHA-256 still remains available through
crypto_shash, but individual architectures no longer need to handle it.
Remove support for SHA-256 finalization from the ARMv8 CE assembly code,
since the library does not yet support architecture-specific overrides
of the finalization. (Support for that has been omitted for now, for
simplicity and because usually it isn't performance-critical.)
To match sha256_blocks_arch(), change the type of the nblocks parameter
of the assembly functions from int or 'unsigned int' to size_t. Update
the ARMv8 CE assembly function accordingly. The scalar and NEON
assembly functions actually already treated it as size_t.
While renaming the assembly files, also fix the naming quirks where
"sha2" meant sha256, and "sha512" meant both sha256 and sha512.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
