2013-09-03 13:49:51

by Jussi Kivilinna

Subject: [PATCH] crypto: x86: restore avx2_supported check

Commit 3d387ef08c4 (Revert "crypto: blowfish - add AVX2/x86_64 implementation
of blowfish cipher") reverted too much as it removed the 'assembler supports
AVX2' check and therefore disabled remaining AVX2 implementations of Camellia
and Serpent. Patch restores the check and enables these implementations.

Signed-off-by: Jussi Kivilinna <[email protected]>
---
arch/x86/crypto/Makefile | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 7d6ba9d..75b08e1e 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -3,6 +3,8 @@
#

avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
+avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
+ $(comma)4)$(comma)%ymm2,yes,no)

obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o

2013-09-13 12:22:59

by Herbert Xu

Subject: Re: [PATCH] crypto: x86: restore avx2_supported check

On Tue, Sep 03, 2013 at 04:49:47PM +0300, Jussi Kivilinna wrote:
> Commit 3d387ef08c4 (Revert "crypto: blowfish - add AVX2/x86_64 implementation
> of blowfish cipher") reverted too much as it removed the 'assembler supports
> AVX2' check and therefore disabled remaining AVX2 implementations of Camellia
> and Serpent. Patch restores the check and enables these implementations.
>
> Signed-off-by: Jussi Kivilinna <[email protected]>

Also applied.
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt