[PATCH] powernv: Clear SPRN_PSSCR when a POWER9 CPU comes online
Michael Neuling
mikey at neuling.org
Wed Nov 23 10:35:16 AEDT 2016
On Wed, 2016-11-23 at 10:30 +1100, Michael Ellerman wrote:
> "Gautham R. Shenoy" <ego at linux.vnet.ibm.com> writes:
>
> > From: "Gautham R. Shenoy" <ego at linux.vnet.ibm.com>
> >
> > Ensure that PSSCR is set to a safe value corresponding to no
> > state-loss each time a POWER9 CPU comes online.
>
> Is this a bug fix? I can't tell from the change log.
There are no known bugs it's fixing.
It's just safer to run with a known default value, rather than what we randomly
inherit from previous firmware.
Mikey
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