* Dave Jones <[email protected]> wrote:
> On Wed, Jun 03, 2015 at 09:41:32AM +0200, Ingo Molnar wrote:
> >
> > * Ingo Molnar <[email protected]> wrote:
> >
> > > select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 &&
> X86_LOCAL_APIC)
> >
> > Btw., could we (in a separate patch) turn this into:
> >
> > > select GENERIC_CLOCKEVENTS_BROADCAST
> >
> > x86 systems without an APIC are rare and rarely tested, we are better off
> > simplifying our clockevents layout.
>
> There's a ton of code in arch/x86 for cpus that don't have apic. Anything
> Cyrix
> pre-VIA buy out, Anything AMD pre Athlon, did Intel have apic on 486 ?
> Transmeta ?
>
> I'm all for abandoning support for 2 decade old junk, but given how long it
> took
> to drop 386, I wouldn't be surprised if there are still a lot of 586 era
> people
> still out there playing doom and wearing clothes that are about to come back
> into fashion.
We are not desupporting them in any way - we just simplify a generic
clockevents
bit by always enabling it.
Thanks,
Ingo
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