Messages in this thread | | | Date | Fri, 11 Nov 2005 09:20:04 +0100 | From | Ingo Molnar <> | Subject | Re: IO-APIC problem with 2.6.14-rt9 |
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* Ingo Molnar <mingo@elte.hu> wrote:
> > Grumble. :( I was hoping to submit my tod code to Andrew tomorrow, but > > this might block that. > > hm, ARCH_HAS_READ_CURRENT_TIMER is upstream already. I have not > measured the udelay thing upstream, but i thought it would have the > same issue. Does the GTOD code impact this code?
ah, i see - you changed __delay to always be loop-based. That is quite incorrect.
but i think there is a generic way to solve this: just busy-poll ->read_cycles(). I.e. move __delay into the generic code too. This means even more architecture-specific code would be consolidated, which is always good.
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