diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-12-05 18:42:27 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-12-07 20:01:22 +0800 |
| commit | 8fefde90e90c9f5c2770e46ceb127813d3f20c34 (patch) | |
| tree | 75fcea660971403632402ae8114ca4d88fe535fe /arch/arm64/crypto/Kconfig | |
| parent | 1d481f1cd8925bd92387983ea1245a0ea0f16d32 (diff) | |
crypto: arm64/crc32 - accelerated support based on x86 SSE implementation
This is a combination of the the Intel algorithm implemented using SSE
and PCLMULQDQ instructions from arch/x86/crypto/crc32-pclmul_asm.S, and
the new CRC32 extensions introduced for both 32-bit and 64-bit ARM in
version 8 of the architecture. Two versions of the above combo are
provided, one for CRC32 and one for CRC32C.
The PMULL/NEON algorithm is faster, but operates on blocks of at least
64 bytes, and on multiples of 16 bytes only. For the remaining input,
or for all input on systems that lack the PMULL 64x64->128 instructions,
the CRC32 instructions will be used.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/Kconfig')
| -rw-r--r-- | arch/arm64/crypto/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig index f1e6dd0fc174..450a85df041a 100644 --- a/arch/arm64/crypto/Kconfig +++ b/arch/arm64/crypto/Kconfig @@ -36,6 +36,11 @@ config CRYPTO_CRCT10DIF_ARM64_CE depends on KERNEL_MODE_NEON && CRC_T10DIF select CRYPTO_HASH +config CRYPTO_CRC32_ARM64_CE + tristate "CRC32 and CRC32C digest algorithms using PMULL instructions" + depends on KERNEL_MODE_NEON && CRC32 + select CRYPTO_HASH + config CRYPTO_AES_ARM64_CE tristate "AES core cipher using ARMv8 Crypto Extensions" depends on ARM64 && KERNEL_MODE_NEON @@ -66,4 +71,5 @@ config CRYPTO_CRC32_ARM64 tristate "CRC32 and CRC32C using optional ARMv8 instructions" depends on ARM64 select CRYPTO_HASH + endif |