From cf1521a1a5e21fd1e79a458605c4282fbfbbeee2 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 13 Apr 2013 13:46:50 +0300 Subject: crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher Patch adds AVX2/x86-64 implementation of Twofish cipher, requiring 16 parallel blocks for input (256 bytes). Table look-ups are performed using vpgatherdd instruction directly from vector registers and thus should be faster than earlier implementations. Implementation also uses 256-bit wide YMM registers, which should give additional speed up compared to the AVX implementation. Signed-off-by: Jussi Kivilinna Signed-off-by: Herbert Xu --- arch/x86/crypto/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/crypto/Makefile') diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 28464ef..1f6e0c2 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -43,6 +43,7 @@ endif # These modules require assembler to support AVX2. ifeq ($(avx2_supported),yes) obj-$(CONFIG_CRYPTO_BLOWFISH_AVX2_X86_64) += blowfish-avx2.o + obj-$(CONFIG_CRYPTO_TWOFISH_AVX2_X86_64) += twofish-avx2.o endif aes-i586-y := aes-i586-asm_32.o aes_glue.o @@ -71,6 +72,7 @@ endif ifeq ($(avx2_supported),yes) blowfish-avx2-y := blowfish-avx2-asm_64.o blowfish_avx2_glue.o + twofish-avx2-y := twofish-avx2-asm_64.o twofish_avx2_glue.o endif aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o fpu.o -- cgit v1.1