Linux cryptographic layer development
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From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
To: linux-crypto@vger.kernel.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH] crypto: x86: restore avx2_supported check
Date: Tue, 03 Sep 2013 16:49:47 +0300	[thread overview]
Message-ID: <20130903134947.5366.51429.stgit@localhost6.localdomain6> (raw)

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 <jussi.kivilinna@iki.fi>
---
 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

             reply	other threads:[~2013-09-03 13:49 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-03 13:49 Jussi Kivilinna [this message]
2013-09-13 12:22 ` [PATCH] crypto: x86: restore avx2_supported check Herbert Xu

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