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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.