On Tue, 2011-08-09 at 18:35 +0200, Arnd Bergmann wrote:
> > +static cycle_t tsc_read(struct clocksource *cs)
> > +{
> > + return get_cycles();
> > +}
>
> What is this good for? TSC is an x86 specific feature, so you should
> just
> be able to use get_cycles directly.
>
TSC (Time Stamp Counter) is how the C6X hardware manuals refer to the
free running 64-bit core clock counter. The tsc_read function is needed
to provide a function with the correct prototype for struct clocksource
read method.
--Mark
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