On Thu, 2018-10-11 at 05:33:01 UTC, "Gautham R. Shenoy" wrote: > From: "Gautham R. Shenoy" <e...@linux.vnet.ibm.com> > > On IBM POWER9, the device tree exposes a property array identifed by > "ibm,thread-groups" which will indicate which groups of threads share > a particular set of resources. > > As of today we only have one form of grouping identifying the group of > threads in the core that share the L1 cache, translation cache and > instruction data flow. > > This patch adds helper functions to parse the contents of > "ibm,thread-groups" and populate a per-cpu variable to cache > information about siblings of each CPU that share the L1, traslation > cache and instruction data-flow. > > It also defines a new global variable named "has_big_cores" which > indicates if the cores on this configuration have multiple groups of > threads that share L1 cache. > > For each online CPU, it maintains a cpu_smallcore_mask, which > indicates the online siblings which share the L1-cache with it. > > Signed-off-by: Gautham R. Shenoy <e...@linux.vnet.ibm.com>
Series applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/425752c63b6f3fed7b5a9cba2b8101 cheers
