summaryrefslogtreecommitdiff
path: root/crypto
diff options
context:
space:
mode:
authorTianjia Zhang <tianjia.zhang@linux.alibaba.com>2022-10-27 09:54:55 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2022-11-04 12:34:21 +0300
commit62508017a264133a62987fe40f70c68af9a36572 (patch)
tree7ffc27944693bd449c4829dc4af314560d30e477 /crypto
parenta41b2129461f6c88e087ca9a6e2fde34cb6deb48 (diff)
downloadlinux-62508017a264133a62987fe40f70c68af9a36572.tar.xz
crypto: arm64/sm4 - refactor and simplify NEON implementation
This patch does not add new features. The main work is to refactor and simplify the implementation of SM4 NEON, which is reflected in the following aspects: The accelerated implementation supports the arbitrary number of blocks, not just multiples of 8, which simplifies the implementation and brings some optimization acceleration for data that is not aligned by 8 blocks. When loading the input data, use the ld4 instruction to replace the original ld1 instruction as much as possible, which will save the cost of matrix transposition of the input data. Use 8-block parallelism whenever possible to speed up matrix transpose and rotation operations, instead of up to 4-block parallelism. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions