Re: [PATCH] [1/1] CPU-i386-Geode: Chipset access macros do not workas expected (2nd try)

From: Andrew Morton
Date: Wed May 02 2007 - 03:48:56 EST


On Wed, 2 May 2007 09:16:59 +0200 Juergen Beisert <juergen127@xxxxxxxxxxxxxx> wrote:

> >
> > This clashes with Andi's "msr-index" patch:
> >
> > ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/patches/msr-index
>
> I see. He also moves these defines to another file. Not problem where they
> are. But it isn't possible to replace the macros by the inlined functions in
> processor.h. The used outb/inb macros fail for various other files.

Oh well. Please work out what you think needs to be done.

> > Perhaps it'd be best to wait until msr-index goes upstream and to raise a
> > patch then. Or to redo and retest against 2.6.21-rc7-mm2, which includes
> > msr-index.
>
> All right. To wait is no problem for me (my system works with my
> patch.... ;-) )
>
> > Also, include/asm-x86_64/processor.h has a getCx86(), too. Does it also
> > need fixing?
>
> As I can see the macros are used in:
> - i386/kernel/cpu/cpufreq/gx-suspmod.c (ups, its not in my patch, so it is
> currently no complete)
> - i386/kernel/cpu/mtrr/state.c (also not part of my patch yet)
> - i386/kernel/cpu/cyrix.c
> - i386/kernel/cpu/mtrr/cyrix.c
>
> Most comments states Cyrix CPUs when they are using the macros. Is anything
> with Cyrix 64 bit relevant? Maybe "include/asm-x86_64/processor.h" is a
> simple copy of "include/asm-i386/processor.h" and nobody delete the unused
> macros?

I don't think Cyrix make 64-bit stuff, surely. Andi?

> Please keep me informed and I will resend the patch.
>

Thanks. I think Andi was after a better explanation of what was going
wrong with the macros, too. Please include that in the changelog.

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