[PATCH 4/6] arm64: topology: Implement basic CPU topology support

[Mark Brown]

On Tue, Dec 17, 2013 at 03:19:39PM +0800, Alex Shi wrote:

> For topology meaning, it may be better to have cluster concept there.
> And don't know if there will has a real ARM NUMA system for 64bit
> server. If so, socket_id is good in a NUMA system.

The scheduler does have a separate NUMA node ID that we're not currently
using which I'd have expected to be a better fit for actual NUMA stuff;
looking at the options we've got it's not clear to me that with what the
scheduler has at the minute sockets aren't a good mapping for what the
hardware has.  There doesn't seem to be anything between threaded cores
and physical packages.
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