pci <-> device node mapping

[Dave Engebretsen]

Benjamin Herrenschmidt wrote:
>
> On Wed, 2003-06-18 at 21:36, Todd Inglett wrote:
>
> > The device_node contains a ptr to the tce table.  I suppose sysdata
> > could point directly to it, or you could invent some other external
> > means to find it.
>
> Do you rely on this direct pointer in performance critical locations ?

It is used for each call where TCE mappings are created, so it is on a
pretty high use path.

Dave.

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