From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: cpu_has_fxsr or cpu_has_xmm?
Date: 22 Feb 2001 22:11:52 -0800 [thread overview]
Message-ID: <974uv8$303$1@cesium.transmeta.com> (raw)
In-Reply-To: <200102230538.VAA17793@mail23.bigmailbox.com>
Followup to: <200102230538.VAA17793@mail23.bigmailbox.com>
By author: "Quim K Holland" <qkholland@my-deja.com>
In newsgroup: linux.dev.kernel
>
> I've been looking at various -ac patches for the last couple of
> weeks and have been wondering why only this piece of difference
> still remains between Linus' 2.4.2 and Alan's -ac2. All the other
> diffs in i387.c from 2.4.1-ac2 seem to have been merged into Linus
> tree at around 2.4.2-pre1. Could anybody explain it for me please?
>
> --- linux.vanilla/arch/i386/kernel/i387.c Thu Feb 22 09:05:35 2001
> +++ linux.ac/arch/i386/kernel/i387.c Sun Feb 4 10:58:36 2001
> @@ -179,7 +179,7 @@
>
> unsigned short get_fpu_mxcsr( struct task_struct *tsk )
> {
> - if ( cpu_has_fxsr ) {
> + if ( cpu_has_xmm ) {
> return tsk->thread.i387.fxsave.mxcsr;
> } else {
> return 0x1f80;
>
IMO, XMM is correct here; FXSR is incorrect. Linus?
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
next prev parent reply other threads:[~2001-02-23 6:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-23 5:38 cpu_has_fxsr or cpu_has_xmm? Quim K Holland
2001-02-23 6:11 ` H. Peter Anvin [this message]
2001-02-23 11:23 ` Doug Ledford
-- strict thread matches above, loose matches on Subject: below --
2001-02-23 20:51 Quim K Holland
2001-02-23 21:44 ` H. Peter Anvin
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