From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: powerpc/perf: Fix SDAR_MODE value for continous sampling in power9
Date: Thu, 13 Jul 2017 22:46:42 +1000 (AEST) [thread overview]
Message-ID: <3x7bDL64p0z9s82@ozlabs.org> (raw)
In-Reply-To: <1499770669-9255-1-git-send-email-maddy@linux.vnet.ibm.com>
On Tue, 2017-07-11 at 10:57:49 UTC, Madhavan Srinivasan wrote:
> Incase of continous sampling, code currently defaults
> MMCRA[SDAR_MODE] to 0b01 for power9 DD1 which is
> 'Continous sampling mode update SDAR on TLB miss'.
> And for the rest it copies the sdar_mode value from
> the event code, which mostly turns out to be 0b00
> ('No Updates').
>
> Instead, fix the sdar_mode to 0b10
> ('Continous sampling mode update SDAR on dcache miss')
> as default for power9 incase of continous sampling.
>
> Fixes: 78b4416aa2493 ('powerpc/perf: Handle sdar_mode for marked event in power9')
> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/20dd4c624d25156d5ec3345bbb690b
cheers
prev parent reply other threads:[~2017-07-13 12:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-11 10:57 [PATCH] powerpc/perf: Fix SDAR_MODE value for continous sampling in power9 Madhavan Srinivasan
2017-07-13 12:46 ` Michael Ellerman [this message]
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