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12fcd92305
linux/arch/arm64/crypto
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Ard Biesheuvel 12fcd92305 crypto: arm64/aes - replace scalar fallback with plain NEON fallback 
The new bitsliced NEON implementation of AES uses a fallback in two
places: CBC encryption (which is strictly sequential, whereas this
driver can only operate efficiently on 8 blocks at a time), and the
XTS tweak generation, which involves encrypting a single AES block
with a different key schedule.

The plain (i.e., non-bitsliced) NEON code is more suitable as a fallback,
given that it is faster than scalar on low end cores (which is what
the NEON implementations target, since high end cores have dedicated
instructions for AES), and shows similar behavior in terms of D-cache
footprint and sensitivity to cache timing attacks. So switch the fallback
handling to the plain NEON driver.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-03 18:16:20 +08:00
..
.gitignore crypto: arm64/sha2 - add generated .S files to .gitignore 2016-11-29 16:06:56 +08:00
aes-ce-ccm-core.S crypto: arm64/aes-ccm-ce: fix for big endian 2016-10-21 11:03:43 +08:00
aes-ce-ccm-glue.c crypto: arm64/aes-ce-ccm - remove cra_alignmask 2017-02-03 18:16:19 +08:00
aes-ce-cipher.c crypto: arm64/aes-ce - fix for big endian 2016-10-21 11:03:42 +08:00
aes-ce-setkey.h arm64/crypto: use crypto instructions to generate AES key schedule 2014-11-06 17:25:28 +00:00
aes-ce.S crypto: arm64/aes-xts-ce: fix for big endian 2016-10-21 11:03:45 +08:00
aes-cipher-core.S crypto: arm64/aes - performance tweak 2017-02-03 18:16:20 +08:00
aes-cipher-glue.c crypto: arm64/aes - add scalar implementation 2017-01-13 00:26:49 +08:00
aes-glue.c crypto: arm64/aes-neon-blk - tweak performance for low end cores 2017-02-03 18:16:20 +08:00
aes-modes.S crypto: arm64/aes-blk - remove cra_alignmask 2017-02-03 18:16:19 +08:00
aes-neon.S crypto: arm64/aes-neon-blk - tweak performance for low end cores 2017-02-03 18:16:20 +08:00
aes-neonbs-core.S crypto: arm64/aes - reimplement bit-sliced ARM/NEON implementation for arm64 2017-01-13 00:26:51 +08:00
aes-neonbs-glue.c crypto: arm64/aes - replace scalar fallback with plain NEON fallback 2017-02-03 18:16:20 +08:00
chacha20-neon-core.S crypto: arm64/chacha20 - implement NEON version based on SSE3 code 2017-01-13 00:26:48 +08:00
chacha20-neon-glue.c crypto: arm64/chacha20 - remove cra_alignmask 2017-02-03 18:16:19 +08:00
crc32-arm64.c crypto: arm64/crc32 - bring in line with generic CRC32 2015-05-07 11:16:24 +08:00
crc32-ce-core.S crypto: arm64/crc32 - accelerated support based on x86 SSE implementation 2016-12-07 20:01:22 +08:00
crc32-ce-glue.c crypto: arm64/crc32 - accelerated support based on x86 SSE implementation 2016-12-07 20:01:22 +08:00
crct10dif-ce-core.S crypto: arm64/crct10dif - port x86 SSE implementation to arm64 2016-12-07 20:01:17 +08:00
crct10dif-ce-glue.c crypto: arm64/crct10dif - port x86 SSE implementation to arm64 2016-12-07 20:01:17 +08:00
ghash-ce-core.S crypto: arm64/ghash-ce - fix for big endian 2016-10-21 11:03:43 +08:00
ghash-ce-glue.c arm64/crypto: improve performance of GHASH algorithm 2014-06-18 12:40:54 +01:00
Kconfig crypto: arm64/aes - replace scalar fallback with plain NEON fallback 2017-02-03 18:16:20 +08:00
Makefile crypto: arm64/aes - reimplement bit-sliced ARM/NEON implementation for arm64 2017-01-13 00:26:51 +08:00
sha1-ce-core.S crypto: arm64/sha1-ce - fix for big endian 2016-10-21 11:03:43 +08:00
sha1-ce-glue.c crypto: arm64/sha1-ce - prevent asm code finalization in final() path 2015-05-07 11:16:25 +08:00
sha2-ce-core.S crypto: arm64/sha2-ce - fix for big endian 2016-10-21 11:03:43 +08:00
sha2-ce-glue.c crypto: arm64/sha2-ce - prevent asm code finalization in final() path 2015-05-07 11:16:26 +08:00
sha256-core.S_shipped crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512 2016-11-28 19:58:05 +08:00
sha256-glue.c crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512 2016-11-28 19:58:05 +08:00
sha512-armv8.pl crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512 2016-11-28 19:58:05 +08:00
sha512-core.S_shipped crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512 2016-11-28 19:58:05 +08:00
sha512-glue.c crypto: arm64/sha2 - integrate OpenSSL implementations of SHA256/SHA512 2016-11-28 19:58:05 +08:00