Searched hist:"8 b84475318641c2b89320859332544cf187e1cbd" (Results 1 – 1 of 1) sorted by relevance
/linux/arch/x86/crypto/ |
H A D | aria-aesni-avx-asm_64.S | diff 8b84475318641c2b89320859332544cf187e1cbd Fri Feb 10 19:15:41 CET 2023 Taehee Yoo <ap420073@gmail.com> crypto: x86/aria-avx - Do not use avx2 instructions
vpbroadcastb and vpbroadcastd are not AVX instructions. But the aria-avx assembly code contains these instructions. So, kernel panic will occur if the aria-avx works on AVX2 unsupported CPU.
vbroadcastss, and vpshufb are used to avoid using vpbroadcastb in it. Unfortunately, this change reduces performance by about 5%. Also, vpbroadcastd is simply replaced by vmovdqa in it.
Fixes: ba3579e6e45c ("crypto: aria-avx - add AES-NI/AVX/x86_64/GFNI assembler implementation of aria cipher") Reported-by: Herbert Xu <herbert@gondor.apana.org.au> Reported-by: Erhard F. <erhard_f@mailbox.org> Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|