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    SubjectRe: cpu_has_fxsr or cpu_has_xmm?
    Date
    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
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