powerpc/pseries: export timebase register sample in lparcfg

[Michael Ellerman]

On Sat, 2018-12-08 at 23:48:27 UTC, Tyrel Datwyler wrote:
> The Processor Utilzation of Resource Registers (PURR) provide an estimate of
> resources used by a cpu thread. Section 7.6 in Book III of the ISA outlines
> how to calculate the percentage of shared resources for threads using the
> ratio of the PURR delta and Timebase Register delta for a sampled period.
> 
> This calculation is currently done erroneously by the lparstat tool from the
> powerpc-utils package. This patch exports the current timebase value after
> we sample the PURRs and exposes it to userspace accounting tools via
> /proc/ppc64/lparcfg.
> 
> Signed-off-by: Tyrel Datwyler <tyreld at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/9f3ba362d84786af8e1ab36a32fb3378

cheers