Re: [PATCH 2/2] powerpc: implement arch_scale_smt_power for Power7

Benjamin Herrenschmidt
2010-01-24T03:03:14Z

On Wed, 2010-01-20 at 16:09 -0600, Joel Schopp wrote:
> I can turn that into a conditional branch (case statement) with a shift
> for the common 1,2,4 cases which should cover all procs available today
> falling back to a divide for any theoretical future processors that do
> other numbers of threads.

Look at the cputhreads.h implementation ... Today we only support
power-of-two numbers of threads.

Cheers,
Ben.