Re: [PATCH 33/36] AArch64: Generic timers support

From: John Stultz
Date: Thu Jul 12 2012 - 13:40:07 EST


On 07/12/2012 10:31 AM, Marc Zyngier wrote:
On Thu, 12 Jul 2012 09:57:33 -0700, John Stultz <john.stultz@xxxxxxxxxx>
wrote:

So following ia64's method is probably better then copying the 8253's
rate if you're not concerned about tick-granularity error.
The 8253 is completely meaningless in our case (though I'm sure someone
could try and bold one on the side of an Aarch64 CPU...), so going the ia64
way is probably best (erm... this last bit doesn't sound quite right,
doesn't it?).

Sorry, the "copying the 8253's" bit didn't come out sarcastic enough. :)

The best solution would be to include the actual tick-granularity, but given its not really an architecture constant (which CLOCK_TICK_RATE assumes), that probably wouldn't be appropriate.

thanks
-john

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