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.
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