lkml.org 
[lkml]   [2008]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86: enable CPUID on Cyrix cpus with CPUID disabled
> 
> * Krzysztof Helt <krzysztof.h1@poczta.fm> wrote:
>
> > From: Krzysztof Helt <krzysztof.h1@wp.pl>
> >
> > The macros setCx86_old() and getCx86_old() do not
> > work as a comment says in the processor-cyrix.h.
> >
> > Use working inline functions instead to enable
> > the CPUID instriction on Cyrix cpus.
> >
> > Tested on IBM 6x86MX cpu with disabled the
> > CPUID instruction.
> >
> > Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
> > ---
> >
> > This patch is against the linux-next tree (20080819)
> > as it contains the following patch:
> >
> > x86, cyrix: debug
> > Signed-off-by: Ingo Molnar <mingo@elte.hu>
> >
> >
> http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commit;h=026e2c05ef58ef413e2d52696f125d5ea1aa8bce
> >
> > The linux-2.6-tip tree has not the Ingo's patch so it
> > does not require my patch.
> >
> > I am confused. Is the x86 detection code for Cyrix
> > cpus is right in the linux-next or in the linux-2.6-tip?
> > Should I prepare patches against the linux-2.6-tip
> > or linux-next?
>
> now that the bug is correctly understood and fixed, could you please
> send a patch that cleans it all up and gets rid of the setCx86_old() /
> setCx86() API distinction? I.e. revert commit 026e2c0 ("x86, cyrix:
> debug"). Against tip/master please.
>
> note that this was all done in connection to:
>
> commit c6744955d0ec0cb485c28c51eeb7185e260f6172
> Author: Samuel Sieb <samuel@sieb.net>
> Date: Wed Aug 6 22:06:29 2008 -0700
>
> x86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)"
>

I know that it was connected with the Geode booting, but I read the cyrix.c file and most paths are Geode specific and I won't be able to test them. I tested that reverting the commit 026e2c0 ("x86, cyrix: debug") does not break anything on 6x86MX cpu.

If the tip/master is a correct tree, please revert the commit 026e2c0 in the linux-next and drop this patch. This way everything is correct.

Regards,
Krzysztof

----------------------------------------------------------------------
Dzwon taniej na zagraniczne komorki!
Sprawdz >> http://link.interia.pl/f1f26



\
 
 \ /
  Last update: 2008-09-30 15:09    [W:0.088 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site