[Skiboot] [PATCH V2] platforms/zz: Initialize PRD in skiboot

[Ananth N Mavinakayanahalli]

On Fri, Feb 24, 2017 at 07:45:20PM +1100, Benjamin Herrenschmidt wrote:
> On Fri, 2017-02-24 at 06:19 +0530, Ananth N Mavinakayanahalli wrote:
> > -       if (fsp_present()) {
> > -               /* todo: FSP implementation */
> > -               queue_prd_msg = queue_prd_msg_nop;
> > -       } else {
> > -               queue_prd_msg = queue_prd_msg_hbrt;
> > -               opal_register(OPAL_PRD_MSG, opal_prd_msg, 1);
> > -       }
> > +       /*
> > +        * P9 FSP based systems work similar to the OpenPOWER
> > +        * ones in that the PRD runs in host userspace. On such
> > +        * systems, prd_init() gets called from the platform
> > +        * probe callback and the setup for them is similar
> > +        * to the OpenPOWER systems.
> > +        */
> > +       queue_prd_msg = queue_prd_msg_hbrt;
> > +       opal_register(OPAL_PRD_MSG, opal_prd_msg, 1);
> >  
> 
> What about the P8 FSP case ?

We never get here since prd_init() doesn't get called. For the P9 case,
I am calling prd_init() from platform->probe().

In fact, more changes are needed since the IPOLL SCOM addresses have
changed in P9. Patches coming for that...

Ananth