Re: HT not working by default since 2.4.22

[Jeff Garzik]

marcelo@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:
> On Wed, 24 Sep 2003, Brown, Len wrote:
>
>
> > Okay, so what to do?
> >
> > We could make 2.4.23 like 2.4.21 where ACPI code for HT is included in
> > the kernel even when CONFIG_ACPI is not set.
> >
> > Or we could leave 2.4.23 like 2.4.22 where disabling CONFIG_ACPI really
> > does remove all ACPI code in the kernel; and when CONFIG_ACPI is set,
> > CONFIG_ACPI_HT_ONLY is available to limit ACPI to just the tables part
> > needed for HT.
>
>
> CONFIG_ACPI_HT should be not dependant on CONFIG_ACPI. So
>
> 1) Please make it very clear on the configuration that for HT 
> CONFIG_ACPI_HT_ONLY is needed
> 2) Move it outside CONFIG_ACPI. 
>
> OK? 


Unfortunately CONFIG_ACPI_HT_ONLY outside and independent of CONFIG_ACPI 
proved a bit confusing.

How about the more simple CONFIG_HYPERTHREAD or CONFIG_HT?

If enabled and CONFIG_SMP is set, then we will attempt to discover HT 
via ACPI tables, regardless of CONFIG_ACPI value.

Or... (I know multiple people will shoot me for saying this) we could 
resurrect acpitable.[ch], and build that when CONFIG_ACPI is disabled.

	Jeff



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