From: "H. Peter Anvin" <hpa@zytor.com>
To: Alexander van Heukelum <heukelum@mailshack.com>
Cc: Ingo Molnar <mingo@elte.hu>, Andi Kleen <andi@firstfloor.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Thomas Gleixner <tglx@linutronix.de>,
Alexander van Heukelum <heukelum@fastmail.fm>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: K8, EFFICEON and CORE2 support the cmovxx instructions.
Date: Sat, 15 Mar 2008 21:18:16 +0100 [thread overview]
Message-ID: <47DC2F08.9080004@zytor.com> (raw)
In-Reply-To: <20080315191946.GA21817@mailshack.com>
Alexander van Heukelum wrote:
> K8, EFFICEON and CORE2 support the cmovxx instructions.
>
> Instead of listing the cpu's that have support for the
> cmovxx instructions, list the cpu's that don't.
>
> Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
> ---
>
> A bit of playing resulted in:
>
> CPUS="M386 M486 M586 M586TSC M586MMX M686 MPENTIUMII MPENTIUMIII"
> CPUS=$CPUS" MPENTIUMM MPENTIUM4 MK6 MK7 MK8 MCRUSOE MEFFICEON"
> CPUS=$CPUS" MWINCHIPC6 MWINCHIP2 MWINCHIP3D MGEODEGX1 MGEODE_LX"
> CPUS=$CPUS" MCYRIXIII MVIAC3_2 MVIAC7 MPSC MCORE2"
>
> for cpu in $CPUS
> do
> echo "CONFIG_${cpu}=y" > testconfig
> make ARCH=i386 allnoconfig KCONFIG_ALLCONFIG=testconfig > /dev/null
> echo ${cpu} >> result
> grep X86_CMOV .config >> result
> echo >> result
> done
>
> I'm quite sure that K8, EFFICEON and CORE2 support HAVE_CMOV, but
> they did not set X86_CMOV.
>
Crusoe has CMOV as well.
-hpa
next prev parent reply other threads:[~2008-03-15 20:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-12 20:01 [PATCH] x86: merge the simple bitops and move them to bitops.h Alexander van Heukelum
2008-03-14 18:07 ` Jeremy Fitzhardinge
2008-03-14 19:43 ` Alexander van Heukelum
2008-03-14 19:55 ` Andi Kleen
2008-03-14 21:33 ` Alexander van Heukelum
2008-03-14 21:42 ` Andi Kleen
2008-03-14 22:01 ` Alexander van Heukelum
2008-03-14 22:18 ` Andi Kleen
2008-03-15 17:54 ` Alexander van Heukelum
2008-03-15 19:19 ` K8, EFFICEON and CORE2 support the cmovxx instructions Alexander van Heukelum
2008-03-15 20:18 ` H. Peter Anvin [this message]
2008-03-15 21:06 ` Alexander van Heukelum
2008-03-15 21:11 ` Willy Tarreau
2008-03-16 13:16 ` [PATCH] x86: K8, GEODE_LX, CRUSOE, " Alexander van Heukelum
2008-03-21 12:38 ` Ingo Molnar
2008-03-14 20:35 ` [PATCH v2] x86: merge the simple bitops and move them to bitops.h Alexander van Heukelum
2008-03-14 23:30 ` Randy Dunlap
2008-03-15 12:04 ` [PATCH v3] " Alexander van Heukelum
2008-03-21 12:35 ` Ingo Molnar
2008-03-14 21:15 ` [PATCH] " Jeremy Fitzhardinge
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