From: Dave Jones <davej@redhat.com>
To: Adrian Bunk <bunk@fs.tum.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: RFC: [2.6 patch] better i386 CPU selection
Date: Thu, 11 Sep 2003 12:04:35 +0100 [thread overview]
Message-ID: <20030911110435.GA1225@redhat.com> (raw)
In-Reply-To: <20030911062816.GX27368@fs.tum.de>
On Thu, Sep 11, 2003 at 08:28:16AM +0200, Adrian Bunk wrote:
> - Does the Cyrix III support 686 instructions?
Depends on your definition of 686. If you follow the Intel
definition (where CMOV is optional), yes. If you follow the gcc
definition (where CMOV is assumed), no.
Except for the latest Nehemiah cores (which now have CMOV).
> - Do -march=winchip{2,-c6} and -march=c3{,-2} add anything not in
> -march=i686 (except optimizations of otherwise compatible code)?
Not afaik.
> - Which CPUs exactly need X86_ALIGNMENT_16?
Unsure. This could use testing on a few systems.
> - X86_GOOD_APIC: Are there really that many processors with a bad APIC?
Mikael ?
Dave
--
Dave Jones http://www.codemonkey.org.uk
next prev parent reply other threads:[~2003-09-11 11:06 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-07 16:47 RFC: [2.6 patch] better i386 CPU selection Mikael Pettersson
2003-09-07 17:43 ` Jamie Lokier
2003-09-07 18:09 ` Alan Cox
2003-09-08 8:17 ` Rogier Wolff
2003-09-08 12:36 ` Alan Cox
2003-09-10 14:17 ` Pavel Machek
2003-09-11 6:28 ` Adrian Bunk
2003-09-11 11:04 ` Dave Jones [this message]
2003-09-12 20:41 ` Adrian Bunk
2003-09-11 12:10 ` Maciej W. Rozycki
2003-09-12 19:07 ` Adrian Bunk
2003-09-16 12:34 ` Maciej W. Rozycki
2003-09-11 14:25 ` Alan Cox
2003-09-13 10:37 ` Adrian Bunk
2003-09-07 17:51 ` Adrian Bunk
-- strict thread matches above, loose matches on Subject: below --
2003-09-14 8:55 John Bradford
2003-09-14 8:52 John Bradford
[not found] <viay.6qh.11@gated-at.bofh.it>
[not found] ` <vli4.2Ml.15@gated-at.bofh.it>
[not found] ` <vnjR.5Sn.5@gated-at.bofh.it>
[not found] ` <vnD7.6jK.1@gated-at.bofh.it>
[not found] ` <vnMX.6x0.17@gated-at.bofh.it>
[not found] ` <vqKS.2NP.29@gated-at.bofh.it>
2003-09-14 0:07 ` Andi Kleen
2003-09-14 0:10 ` David Lang
2003-09-13 12:51 Adrian Bunk
2003-09-13 14:20 ` Kevin P. Fleming
2003-09-13 17:10 ` Adrian Bunk
2003-09-13 16:11 ` Dave Jones
2003-09-13 16:41 ` Adrian Bunk
2003-09-13 17:21 ` Dave Jones
2003-09-13 18:22 ` Adrian Bunk
2003-09-13 18:35 ` Dave Jones
2003-09-13 21:52 ` Adrian Bunk
2003-09-13 18:21 ` Jeff Garzik
2003-09-13 18:37 ` Dave Jones
2003-09-13 18:53 ` Jeff Garzik
2003-09-13 20:32 ` Alan Cox
2003-09-13 22:07 ` Adrian Bunk
2003-09-13 22:33 ` Jeff Garzik
2003-09-13 18:47 ` Alan Cox
2003-09-13 11:04 Mikael Pettersson
2003-09-13 11:02 Mikael Pettersson
2003-09-13 11:13 ` Adrian Bunk
2003-09-12 21:38 Mikael Pettersson
2003-09-12 23:23 ` Adrian Bunk
2003-09-16 12:42 ` Maciej W. Rozycki
2003-09-12 20:09 Mikael Pettersson
2003-09-12 22:51 ` Adrian Bunk
2003-09-07 21:47 Mikael Pettersson
2003-09-07 21:46 Mikael Pettersson
2003-09-07 21:56 ` Adrian Bunk
2003-09-07 11:28 Adrian Bunk
2003-09-07 11:46 ` Jan-Benedict Glaw
2003-09-07 13:17 ` Adrian Bunk
2003-09-07 13:48 ` Jan-Benedict Glaw
2003-09-07 12:42 ` Sam Ravnborg
2003-09-07 12:51 ` Adrian Bunk
2003-09-07 12:42 ` Robert Schwebel
2003-09-07 13:00 ` Adrian Bunk
2003-09-07 13:14 ` Robert Schwebel
2003-09-08 15:26 ` Tom Rini
2003-09-07 17:31 ` Alan Cox
2003-09-07 17:48 ` Robert Schwebel
2003-09-07 18:04 ` Alan Cox
2003-09-07 18:26 ` Robert Schwebel
2003-09-07 19:17 ` Alan Cox
2003-09-07 19:17 ` Alan Cox
2003-09-07 17:25 ` Alan Cox
2003-09-11 6:19 ` Adrian Bunk
2003-09-08 0:46 ` Rusty Russell
2003-09-08 14:29 ` Adrian Bunk
2003-09-09 1:11 ` Rusty Russell
2003-09-11 6:22 ` Adrian Bunk
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