[Skiboot] [PATCH V4] VAS: Alloc IRQ and port address for each VAS instance

Haren Myneni hbabu at us.ibm.com
Fri Nov 8 16:38:51 AEDT 2019



"Oliver O'Halloran" <oohall at gmail.com> wrote on 11/07/2019 09:06:39 PM:

>
> On Sat, Oct 26, 2019 at 7:48 PM Haren Myneni <haren at linux.vnet.ibm.com>
wrote:
> >
> >
> > Setup IRQ and trigger port for each VAS instance. Export these
> > values through device-tree with 'interrupts' and 'ibm,vas-port'
> > properties in each VAS device node. Kernel setup IRQ and register
> > port address for each send window.
> >
> > Enable 'vas-user-space' NVRAM config to allocate IRQ sources and
> > provide 'interrupts' property.
> >
> > nvram -p ibm,skiboot --update-config vas-user-space=enable
> >
> > Signed-off-by: Sukadev Bhattiprolu <sukadev at linux.vnet.ibm.com>
> > Signed-off-by: Haren Myneni <haren at us.ibm.com>
>
> Thanks for doing all the cleanups, merged as
> ad8cdd0f83bf55e9717326afb7af6eeedb33e031
>
> If new OPAL calls or device-tree properties need to be added for this
> feature can you post an RFC sometime soon.
>

Thanks Oliver. Sure will post RFC early next time when we have patches
ready. We may have OPAL calls to read and update NX registers run time in
future.

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