On 29 September 2016 at 15:51, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> wrote: > This is a port to arm64 of the NEON implementation of SHA256 that lives > under arch/arm/crypto. > > Due to the fact that the AArch64 assembler dialect deviates from the > 32-bit ARM one in ways that makes sharing code problematic, and given > that this version only uses the NEON version whereas the original > implementation supports plain ALU assembler, NEON and Crypto Extensions, > this code is built from a version sha256-armv4.pl that has been > transliterated to the AArch64 NEON dialect. > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > --- > arch/arm64/crypto/Kconfig | 5 + > arch/arm64/crypto/Makefile | 11 + > arch/arm64/crypto/sha256-armv4.pl | 413 +++++++++ > arch/arm64/crypto/sha256-core.S_shipped | 883 ++++++++++++++++++++ > arch/arm64/crypto/sha256_neon_glue.c | 103 +++ > 5 files changed, 1415 insertions(+) > > diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig > index 2cf32e9887e1..d32371198474 100644 > --- a/arch/arm64/crypto/Kconfig > +++ b/arch/arm64/crypto/Kconfig > @@ -18,6 +18,11 @@ config CRYPTO_SHA2_ARM64_CE > depends on ARM64 && KERNEL_MODE_NEON > select CRYPTO_HASH > > +config CRYPTO_SHA2_ARM64_NEON > + tristate "SHA-224/SHA-256 digest algorithm (ARMv8 NEON)" > + depends on ARM64 && KERNEL_MODE_NEON > + select CRYPTO_HASH > + > config CRYPTO_GHASH_ARM64_CE > tristate "GHASH (for GCM chaining mode) using ARMv8 Crypto Extensions" > depends on ARM64 && KERNEL_MODE_NEON > diff --git a/arch/arm64/crypto/Makefile b/arch/arm64/crypto/Makefile > index abb79b3cfcfe..5156ebee0488 100644 > --- a/arch/arm64/crypto/Makefile > +++ b/arch/arm64/crypto/Makefile > @@ -29,6 +29,9 @@ aes-ce-blk-y := aes-glue-ce.o aes-ce.o > obj-$(CONFIG_CRYPTO_AES_ARM64_NEON_BLK) += aes-neon-blk.o > aes-neon-blk-y := aes-glue-neon.o aes-neon.o > > +obj-$(CONFIG_CRYPTO_SHA2_ARM64_NEON) := sha256-neon.o There is a typo here that I only spotted just now: this should be += not := Herbert, if you're picking this up, could you please fix this at merge time? Or do you need me to resend? Thanks, Ard. -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
