[PATCH v7 08/12] powerpc/vas: Define vas_win_id()

[Michael Ellerman]

Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com> writes:

> Define an interface to return a system-wide unique id for a given VAS
> window.
>
> The vas_win_id() will be used in a follow-on patch to generate an unique
> handle for a user space receive window. Applications can use this handle
> to pair send and receive windows for fast thread-wakeup.
>
> The hardware refers to this system-wide unique id as a Partition Send
> Window ID which is expected to be used during fault handling. Hence the
> "pswid" in the function names.

Same comment as previous patch.

cheers