Re: [PATCH] x86 cpu selection (first hack)

J.A. Magallon
2002-05-31T00:36:22Z

On 2002.05.31 Dave Jones wrote:
>On Thu, May 30, 2002 at 07:20:13PM -0400, Jeff Garzik wrote:
>
> > wonder if making the CPU features selectable is useful? i.e. provide an
> > actual config option for MMX memcpy, F00F bug, WP, etc. Normal (current)
> > logic is to look at the cpu selected, and deduce these options.
>
>J.A's comment that most people compiling kernels shouldn't need to know
>what bugs their CPU has before they pick it is a good one imo[1]
>
>Also an explosion of CONFIG_ items where they can be sanely derived
>from others doesn't make much sense imo.
>

As I see it, kernel will only see a CONFIG_CPU_[3456]86 and a bunch
of CONFIG_X86-{foof,ppro-fence,mmx, etc}. The others will only be used
in CPUConfig.in to derive the visible ones.

--
J.A. Magallon # Let the source be with you...
mailto:jamagallon@able.es
Mandrake Linux release 8.3 (Cooker) for i586
Linux werewolf 2.4.19-pre9-jam1 #1 SMP jue may 30 00:48:49 CEST 2002 i686