From: Alexander van Heukelum <heukelum@mailshack.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <andi@firstfloor.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander van Heukelum <heukelum@fastmail.fm>,
LKML <linux-kernel@vger.kernel.org>
Subject: K8, EFFICEON and CORE2 support the cmovxx instructions.
Date: Sat, 15 Mar 2008 20:19:46 +0100 [thread overview]
Message-ID: <20080315191946.GA21817@mailshack.com> (raw)
In-Reply-To: <1205530409.27413.1242484373@webmail.messagingengine.com>
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.
Greetings,
Alexander van Heukelum
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 31e92fb..7a3a2d4 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -399,7 +399,7 @@ config X86_TSC
# generates cmov.
config X86_CMOV
def_bool y
- depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7)
+ depends on !(MCYRIXIII || MGEODE_LX || MGEODEGX1 || MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MK6 || M586MMX || M586TSC || M586 || M486 || M386)
config X86_MINIMUM_CPU_FAMILY
int
next prev parent reply other threads:[~2008-03-15 19:20 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 ` Alexander van Heukelum [this message]
2008-03-15 20:18 ` K8, EFFICEON and CORE2 support the cmovxx instructions H. Peter Anvin
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080315191946.GA21817@mailshack.com \
--to=heukelum@mailshack.com \
--cc=andi@firstfloor.org \
--cc=heukelum@fastmail.fm \
--cc=hpa@zytor.com \
--cc=jeremy@goop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox