Re: [RFT PATCH v1 1/4] Documentation: DT: arm: add support for sockets defining package boundaries

Rob Herring
2018-12-12T02:18:08Z

On Thu, 29 Nov 2018 15:28:17 -0800, Atish Patra wrote:
> From: Sudeep Holla <sudeep.holla@arm.com>
>
> The current ARM DT topology description provides the operating system
> with a topological view of the system that is based on leaf nodes
> representing either cores or threads (in an SMT system) and a
> hierarchical set of cluster nodes that creates a hierarchical topology
> view of how those cores and threads are grouped.
>
> However this hierarchical representation of clusters does not allow to
> describe what topology level actually represents the physical package or
> the socket boundary, which is a key piece of information to be used by
> an operating system to optimize resource allocation and scheduling.
>
> Lets add a new "socket" node type in the cpu-map node to describe the
> same.
>
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
> Documentation/devicetree/bindings/arm/topology.txt | 52 ++++++++++++++++------
> 1 file changed, 39 insertions(+), 13 deletions(-)
>

Reviewed-by: Rob Herring <robh@kernel.org>