Re: CPUfreq - udelay() interaction issues

[Saravana Kannan]

Arjan van de Ven wrote:
> so in reality, all hardware that does coordination between cores/etc
> like this also has a tsc that is invariant of the actual P state.
> If there are exceptions, those have a problem, but I can't think of any
> right now.
> Once the TSC is invariant of P state, udelay() is fine, since that goes
> of the tsc, not of some delay loop kind of thing....

I assume you are talking specifically about x86. I want x86 to be 
correct, but also want ARM to be correct. So, at this point I might as 
well try to put in an arch independent fix.

Thanks,
Saravana
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