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In-Reply-To: <20170710061938.22513-1-npiggin@gmail.com>
To: Nicholas Piggin <npiggin@gmail.com>
From: Michael Ellerman <patch-notifications@ellerman.id.au>
Cc: Madhavan Srinivasan <masriniv@in.ibm.com>,
 Gautham R Shenoy <ego@linux.vnet.ibm.com>, Michael Neuling <mikey@neuling.org>,
 Nicholas Piggin <npiggin@gmail.com>, Anton Blanchard <anton@samba.org>,
 linuxppc-dev@lists.ozlabs.org
Subject: Re: POWER9 PMU interrupt after idle workaround
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Date: Fri, 21 Jul 2017 21:13:03 +1000 (AEST)
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On Mon, 2017-07-10 at 06:19:38 UTC, Nicholas Piggin wrote:
> POWER9 DD2 can see spurious PMU interrupts after state-loss idle in
> some conditions.
> 
> A solution is to save and reload MMCR0 over state-loss idle.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> Acked-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/101dd590a7fa37954540cf3149a1c5

cheers