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 thersholding counter data for unknown type
Date: Sat, 22 Dec 2018 20:54:35 +1100 (AEDT) [thread overview]
Message-ID: <43MLSW6nspz9sMQ@ozlabs.org> (raw)
In-Reply-To: <1544347095-19428-1-git-send-email-maddy@linux.vnet.ibm.com>
On Sun, 2018-12-09 at 09:18:15 UTC, Madhavan Srinivasan wrote:
> MMCRA[34:36] and MMCRA[38:44] expose the thresholding counter value.
> Thresholding counter can be used to count latency cycles such as
> load miss to reload. But threshold counter value is not relevant
> when the sampled instruction type is unknown or reserved. Patch to
> fix the thersholding counter value to zero when sampled instruction
> type is unknown or reserved.
>
> Fixes: 170a315f41c6('powerpc/perf: Support to export MMCRA[TEC*] field to userspace')
> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/17cfccc91545682513541924245abb
cheers
prev parent reply other threads:[~2018-12-22 10:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-09 9:18 [PATCH] powerpc/perf: Fix thersholding counter data for unknown type Madhavan Srinivasan
2018-12-22 9:54 ` Michael Ellerman [this message]
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