linux-kernel - Re: [PATCH 03/11] Optimized sha256 x86_64 assembly routine using Supplemental SSE3 instructions.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Sun, 24 Mar 2013 14:26:30 +0200
From:	Jussi Kivilinna <jussi.kivilinna@....fi>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
CC:	Herbert Xu <herbert@...dor.apana.org.au>,
	"H. Peter Anvin" <hpa@...or.com>,
	"David S.Miller" <davem@...emloft.net>,
	Kirk Yap <kirk.s.yap@...el.com>,
	David Cote <david.m.cote@...el.com>,
	James Guilford <james.guilford@...el.com>,
	Wajdi Feghali <wajdi.k.feghali@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org
Subject: Re: [PATCH 03/11] Optimized sha256 x86_64 assembly routine using
 Supplemental SSE3 instructions.

On 22.03.2013 23:29, Tim Chen wrote:
> Provides SHA256 x86_64 assembly routine optimized with SSSE3 instructions.
> Speedup of 40% or more has been measured over the generic implementation.
> 
> Signed-off-by: Tim Chen <tim.c.chen@...ux.intel.com>
> ---
>  arch/x86/crypto/sha256-ssse3-asm.S | 504 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 504 insertions(+)
>  create mode 100644 arch/x86/crypto/sha256-ssse3-asm.S
> 
> diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S

..snip..

> +
> +########################################################################
> +## void sha256_transform_ssse3(void *input_data, UINT32 digest[8], UINT64 num_blks)
> +## arg 1 : pointer to input data
> +## arg 2 : pointer to digest
> +## arg 3 : Num blocks
> +########################################################################
> +.text
> +.global sha256_transform_ssse3
> +.align 32
> +sha256_transform_ssse3:

Maybe use ENRTY/ENDPROC macros for exporting functions from assembly?

-Jussi

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/