Re: Voyager subarchitecture for 2.5.46

From: john stultz (
Date: Mon Nov 11 2002 - 16:58:44 EST

On Mon, 2002-11-11 at 12:57, J.E.J. Bottomley wrote:
> As a beginning, what about the attached patch? It eliminates the compile time
> TSC options (and thus hopefully the sources of confusion). I've exported
> tsc_disable, so it can be set by the subarchs if desired (voyager does this)
> and moved the notsc option into the timer_tsc code (which is where it looks
> like it belongs).

Looks good to me.

We'd still need to go back and yank out the #ifdef CONFIG_X86_TSC'ed
macros in profile.h and pksched.h or replace them w/ inlines that wrap
the rdtsc calls w/ if(cpu_has_tsc && !tsc_disable) or some such line.

But yea, its a start, assuming no one screams about not being able to
optimize out the timer_pit code.


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