linux-kernel - Re: [PATCH] powernv: Clear SPRN_PSSCR when a POWER9 CPU comes online

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Message-ID: <87bmx7um7s.fsf@concordia.ellerman.id.au>
Date:   Wed, 23 Nov 2016 10:30:15 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Neuling <mikey@...ling.org>,
        Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
        "Shreyas B. Prabhu" <shreyasbp@...il.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
Subject: Re: [PATCH] powernv: Clear SPRN_PSSCR when a POWER9 CPU comes online

"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com> writes:

> From: "Gautham R. Shenoy" <ego@...ux.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.

cheers