powerpc/perf: Factor out PPMU_ONLY_COUNT_RUN check code from power8

[Michael Ellerman]

On Mon, 2017-07-31 at 08:02:41 UTC, Madhavan Srinivasan wrote:
> There are some hardware events on Power systems which only
> count when the processor is not idle, and there are some
> fixed-function counters which count such events. For example,
> the "run cycles" event counts cycles when the processor is
> not idle. If the user asks to count cycles, we can use
> "run cycles" if this is a per-task event, since the processor
> is running when the task is running, by definition. We can't
> use "run cycles" if the user asks for "cycles" on a system-wide
> counter.
> 
> Currently in power8 this check is done using PPMU_ONLY_COUNT_RUN
> flag in power8_get_alternatives() function. Based on the
> flag, events are switched if needed. This function should
> also be enabled in power9, so factor out the code to
> isa207_get_alternatives().
> 
> Fixes: efe881afdd999 ('powerpc/perf: Factor out event_alternative function')
> Reported-by: Anton Blanchard <anton at samba.org>
> Signed-off-by: Madhavan Srinivasan <maddy at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/70a7e720998d5beaf0c8abd945234e

cheers