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3 Commits

Author SHA1 Message Date
Ard Biesheuvel 5b3da65177 crypto: arm64/crct10dif-ce - yield NEON after every block of input 
Avoid excessive scheduling delays under a preemptible kernel by
yielding the NEON after every block of input.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2018-05-12 00:13:11 +08:00
Ard Biesheuvel 325f562d8f crypto: arm64/crct10dif - move literal data to .rodata section 
Move the CRC-T10DIF literal data to the .rodata section where it is
safe from being exploited by speculative execution.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2018-01-18 23:00:31 +11:00
Ard Biesheuvel 6ef5737f39 crypto: arm64/crct10dif - port x86 SSE implementation to arm64 
This is a transliteration of the Intel algorithm implemented
using SSE and PCLMULQDQ instructions that resides in the file
arch/x86/crypto/crct10dif-pcl-asm_64.S, but simplified to only
operate on buffers that are 16 byte aligned (but of any size)

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 2016-12-07 20:01:17 +08:00