From: Borislav Petkov <borislav.petkov@amd.com>
To: Benjamin <masterme120@gmail.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: add optimisation option for k10 processors
Date: Mon, 20 Dec 2010 08:54:54 +0100 [thread overview]
Message-ID: <20101220075454.GB25977@aftab> (raw)
In-Reply-To: <1292795132.14811.10.camel@benjamin-desktop>
On Sun, Dec 19, 2010 at 04:45:32PM -0500, Benjamin wrote:
> From: Benjamin Fair <masterme120@gmail.com>
>
> This adds a config option to optimise for AMD family-k10 processors.
They're called AMD F10h processors, no more K*.
> Signed-off-by: Benjamin Fair <masterme120@gmail.com>
>
> diff -uNr linux-2.6.37-rc6.vanilla/arch/x86/Kconfig.cpu
> linux-2.6.37-rc6/arch/x86/Kconfig.cpu
> --- linux-2.6.37-rc6.vanilla/arch/x86/Kconfig.cpu 2010-12-15
> 20:24:48.000000000 -0500
> +++ linux-2.6.37-rc6/arch/x86/Kconfig.cpu 2010-12-19 14:31:59.034429012
> -0500
> @@ -171,6 +171,13 @@
> Enables use of some extended instructions, and passes appropriate
> optimization flags to GCC.
>
> +config MK10
config MF10H
> + bool "Phenom/Phenom-II/Athlon-II/K10/10h"
bool "Phenom/Phenom-II/Athlon-II, i.e. all F10h CPUs"
> + ---help---
> + Select this for an AMD K10-family processor. Also known as Family
> + 10h. Enables use of some extended instructions, and passes
> + appropriate optimization flags to GCC.
> +
ditto, no more K's.
[.. ]
> diff -uNr linux-2.6.37-rc6.vanilla/arch/x86/Makefile
> linux-2.6.37-rc6/arch/x86/Makefile
> --- linux-2.6.37-rc6.vanilla/arch/x86/Makefile 2010-12-15
> 20:24:48.000000000 -0500
> +++ linux-2.6.37-rc6/arch/x86/Makefile 2010-12-19 15:42:01.041429011
> -0500
> @@ -51,6 +51,7 @@
>
> # FIXME - should be integrated in Makefile.cpu
> (Makefile_32.cpu)
> cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
> + cflags-$(CONFIG_MK10) += $(call cc-option,-march=amdfam10)
But before we do that, let me talk to the compiler guys first.
Thanks.
--
Regards/Gruss,
Boris.
Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
prev parent reply other threads:[~2010-12-20 7:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-19 21:45 Benjamin
2010-12-19 22:16 ` Jesper Juhl
2010-12-20 7:54 ` Borislav Petkov [this message]
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