From: "Shilimkar, Santosh" <santosh.shilimkar@ti.com>
To: Will Deacon <will.deacon@arm.com>
Cc: Ming Lei <ming.lei@canonical.com>,
"eranian@gmail.com" <eranian@gmail.com>,
Maynard Johnson <maynardj@us.ibm.com>,
Lik Lik <lik88888@gmail.com>,
"oprofile-list@lists.sourceforge.net"
<oprofile-list@lists.sourceforge.net>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Paul Walmsley <paul@pwsan.com>, Benoit Cousson <b-cousson@ti.com>
Subject: Re: oprofile and ARM A9 hardware counter
Date: Tue, 3 Apr 2012 15:31:53 +0530 [thread overview]
Message-ID: <CAMQu2gyFirtVTWpMu4G_qG5sq33J-_s_o2JhVAdrUf7P3qJ3AA@mail.gmail.com> (raw)
In-Reply-To: <20120403094749.GH17741@mudshark.cambridge.arm.com>
On Tue, Apr 3, 2012 at 3:17 PM, Will Deacon <will.deacon@arm.com> wrote:
> On Tue, Apr 03, 2012 at 10:42:30AM +0100, Shilimkar, Santosh wrote:
>> On Tue, Apr 3, 2012 at 2:55 PM, Will Deacon <will.deacon@arm.com> wrote:
>> > Did you ever get to the bottom of this? This change really is required in
>> > order to generate PMU interrupts with the CTI and I don't know of any
>> > alternative to the above.
>> >
>> > Any suggestions?
>> >
>> Sorry I lost track of this one. There is one relevant patch in Kevin's queue
>> for 3.4/fixes. [1] which I generated for perf time stamp issue.
>
> Thanks, I'll take a look.
>
>> Can you try that patch and see if it helps the CTI issue as well ? There
>> is an outside chance that it might help. If it doesn't, we should commit
>> Ming Lei patch.
>
> It seems that they're both needed to get reliable PMU operation. Without the
> CLKDM_CAN_SWSUP fix, no interrupts are generated at all. Without the patch
> below ([1]), it seems that we don't generate enough. So it looks like we
> need them both.
>
I see. Can you please confirm if it is still the case with [1].
If yes then am nou sure how to proceed. because permanently setting
EMU CD to CLKDM_CAN_SWSUP will break PM.
>> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/089679.html
>
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WARNING: multiple messages have this Message-ID (diff)
From: santosh.shilimkar@ti.com (Shilimkar, Santosh)
To: linux-arm-kernel@lists.infradead.org
Subject: oprofile and ARM A9 hardware counter
Date: Tue, 3 Apr 2012 15:31:53 +0530 [thread overview]
Message-ID: <CAMQu2gyFirtVTWpMu4G_qG5sq33J-_s_o2JhVAdrUf7P3qJ3AA@mail.gmail.com> (raw)
In-Reply-To: <20120403094749.GH17741@mudshark.cambridge.arm.com>
On Tue, Apr 3, 2012 at 3:17 PM, Will Deacon <will.deacon@arm.com> wrote:
> On Tue, Apr 03, 2012 at 10:42:30AM +0100, Shilimkar, Santosh wrote:
>> On Tue, Apr 3, 2012 at 2:55 PM, Will Deacon <will.deacon@arm.com> wrote:
>> > Did you ever get to the bottom of this? This change really is required in
>> > order to generate PMU interrupts with the CTI and I don't know of any
>> > alternative to the above.
>> >
>> > Any suggestions?
>> >
>> Sorry I lost track of this one. There is one relevant patch in Kevin's queue
>> for 3.4/fixes. [1] which I generated for perf time stamp issue.
>
> Thanks, I'll take a look.
>
>> Can you try that patch and see if it helps the CTI issue as well ? There
>> is an outside chance that it might help. If it doesn't, we should commit
>> Ming Lei ?patch.
>
> It seems that they're both needed to get reliable PMU operation. Without the
> CLKDM_CAN_SWSUP fix, no interrupts are generated at all. Without the patch
> below ([1]), it seems that we don't generate enough. So it looks like we
> need them both.
>
I see. Can you please confirm if it is still the case with [1].
If yes then am nou sure how to proceed. because permanently setting
EMU CD to CLKDM_CAN_SWSUP will break PM.
>> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/089679.html
>
next prev parent reply other threads:[~2012-04-03 10:02 UTC|newest]
Thread overview: 257+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAAO=S0+L2Q1YZC-pfm2Lz8jPooTeHYOMaZbtRgHYFoL_m7rvhA@mail.gmail.com>
[not found] ` <4F0B182D.7060507@us.ibm.com>
2012-01-09 22:49 ` oprofile and ARM A9 hardware counter Will Deacon
2012-01-09 22:49 ` Will Deacon
2012-01-09 23:30 ` Ming Lei
2012-01-09 23:30 ` Ming Lei
2012-01-10 0:46 ` stephane eranian
2012-01-10 0:46 ` stephane eranian
2012-01-18 4:18 ` Ming Lei
2012-01-18 4:18 ` Ming Lei
2012-01-18 9:33 ` Ming Lei
2012-01-18 9:33 ` Ming Lei
2012-01-18 11:39 ` Shilimkar, Santosh
2012-01-18 11:39 ` Shilimkar, Santosh
2012-01-18 12:24 ` Ming Lei
2012-01-18 12:24 ` Ming Lei
2012-01-18 12:33 ` Shilimkar, Santosh
2012-01-18 12:33 ` Shilimkar, Santosh
2012-04-03 9:25 ` Will Deacon
2012-04-03 9:25 ` Will Deacon
2012-04-03 9:42 ` Shilimkar, Santosh
2012-04-03 9:42 ` Shilimkar, Santosh
2012-04-03 9:47 ` Will Deacon
2012-04-03 9:47 ` Will Deacon
2012-04-03 10:01 ` Shilimkar, Santosh [this message]
2012-04-03 10:01 ` Shilimkar, Santosh
2012-04-03 12:34 ` Will Deacon
2012-04-03 12:34 ` Will Deacon
2012-04-03 12:41 ` Shilimkar, Santosh
2012-04-03 12:41 ` Shilimkar, Santosh
2012-04-03 14:27 ` Kevin Hilman
2012-04-03 14:27 ` Kevin Hilman
2012-04-03 16:07 ` Will Deacon
2012-04-03 16:07 ` Will Deacon
2012-04-03 23:14 ` Kevin Hilman
2012-04-03 23:14 ` Kevin Hilman
2012-04-03 23:29 ` Paul Walmsley
2012-04-03 23:29 ` Paul Walmsley
2012-04-04 3:42 ` Ming Lei
2012-04-04 3:42 ` Ming Lei
2012-04-04 11:15 ` Will Deacon
2012-04-04 11:15 ` Will Deacon
2012-04-26 18:07 ` Will Deacon
2012-04-26 18:07 ` Will Deacon
2012-04-30 22:25 ` Kevin Hilman
2012-04-30 22:25 ` Kevin Hilman
2012-05-07 17:27 ` Ming Lei
2012-05-07 17:27 ` Ming Lei
2012-05-04 22:17 ` Jon Hunter
2012-05-04 22:17 ` Jon Hunter
2012-05-07 17:15 ` Kevin Hilman
2012-05-07 17:15 ` Kevin Hilman
2012-05-07 19:53 ` Jon Hunter
2012-05-07 19:53 ` Jon Hunter
2012-05-07 23:28 ` Kevin Hilman
2012-05-07 23:28 ` Kevin Hilman
2012-05-08 11:01 ` Cousson, Benoit
2012-05-08 11:01 ` Cousson, Benoit
2012-05-08 11:23 ` Jean Pihet
2012-05-08 11:23 ` Jean Pihet
2012-05-08 12:37 ` Cousson, Benoit
2012-05-08 12:37 ` Cousson, Benoit
2012-05-08 13:18 ` Jean Pihet
2012-05-08 13:18 ` Jean Pihet
2012-05-08 14:00 ` Kevin Hilman
2012-05-08 14:00 ` Kevin Hilman
2012-05-08 14:03 ` Cousson, Benoit
2012-05-08 14:03 ` Cousson, Benoit
2012-05-08 16:18 ` Kevin Hilman
2012-05-08 16:18 ` Kevin Hilman
2012-05-08 19:51 ` Jon Hunter
2012-05-08 19:51 ` Jon Hunter
2012-05-08 21:28 ` Kevin Hilman
2012-05-08 21:28 ` Kevin Hilman
2012-05-08 22:20 ` Jon Hunter
2012-05-08 22:20 ` Jon Hunter
2012-05-08 22:12 ` Ming Lei
2012-05-08 22:12 ` Ming Lei
2012-05-08 17:31 ` Jon Hunter
2012-05-08 17:31 ` Jon Hunter
2012-05-08 21:22 ` Kevin Hilman
2012-05-08 21:22 ` Kevin Hilman
2012-05-08 23:59 ` Jon Hunter
2012-05-08 23:59 ` Jon Hunter
2012-05-09 10:58 ` Cousson, Benoit
2012-05-09 10:58 ` Cousson, Benoit
2012-05-09 18:04 ` Jon Hunter
2012-05-09 18:04 ` Jon Hunter
2012-05-09 19:28 ` Jon Hunter
2012-05-09 19:28 ` Jon Hunter
2012-05-09 21:45 ` Jon Hunter
2012-05-09 21:45 ` Jon Hunter
2012-05-10 8:44 ` Will Deacon
2012-05-10 8:44 ` Will Deacon
2012-05-10 9:12 ` stephane eranian
2012-05-10 9:12 ` stephane eranian
2012-05-10 18:55 ` Jon Hunter
2012-05-10 18:55 ` Jon Hunter
2012-05-11 12:25 ` Will Deacon
2012-05-11 12:25 ` Will Deacon
2012-05-11 13:47 ` Jon Hunter
2012-05-11 13:47 ` Jon Hunter
2012-05-11 13:49 ` Will Deacon
2012-05-11 13:49 ` Will Deacon
2012-05-11 14:52 ` Jon Hunter
2012-05-11 14:52 ` Jon Hunter
2012-05-11 15:02 ` Will Deacon
2012-05-11 15:02 ` Will Deacon
2012-05-11 16:31 ` Jon Hunter
2012-05-11 16:31 ` Jon Hunter
2012-05-11 16:38 ` Will Deacon
2012-05-11 16:38 ` Will Deacon
2012-05-11 23:51 ` Jon Hunter
2012-05-11 23:51 ` Jon Hunter
2012-05-15 13:52 ` Will Deacon
2012-05-15 13:52 ` Will Deacon
2012-05-10 14:12 ` Kevin Hilman
2012-05-10 14:12 ` Kevin Hilman
2012-05-10 19:05 ` Jon Hunter
2012-05-10 19:05 ` Jon Hunter
2012-05-10 6:59 ` Santosh Shilimkar
2012-05-10 6:59 ` Santosh Shilimkar
2012-05-08 21:50 ` Paul Walmsley
2012-05-08 21:50 ` Paul Walmsley
2012-04-04 0:00 ` Paul Walmsley
2012-04-04 0:00 ` Paul Walmsley
2012-04-04 11:07 ` Will Deacon
2012-04-04 11:07 ` Will Deacon
2012-01-18 9:54 ` stephane eranian
2012-01-18 9:54 ` stephane eranian
2012-01-18 10:07 ` Ming Lei
2012-01-18 10:07 ` Ming Lei
2012-01-18 21:58 ` stephane eranian
2012-01-18 21:58 ` stephane eranian
2012-01-19 1:21 ` Ming Lei
2012-01-19 1:21 ` Ming Lei
2012-01-19 11:34 ` stephane eranian
2012-01-19 11:34 ` stephane eranian
2012-01-19 12:45 ` Ming Lei
2012-01-19 12:45 ` Ming Lei
2012-01-19 12:51 ` stephane eranian
2012-01-19 12:51 ` stephane eranian
2012-01-19 12:55 ` stephane eranian
2012-01-19 12:55 ` stephane eranian
2012-01-19 13:14 ` Ming Lei
2012-01-19 13:14 ` Ming Lei
2012-01-19 13:26 ` Ming Lei
2012-01-19 13:26 ` Ming Lei
2012-01-19 13:32 ` stephane eranian
2012-01-19 13:32 ` stephane eranian
2012-01-19 13:51 ` Ming Lei
2012-01-19 13:51 ` Ming Lei
2012-01-19 17:07 ` stephane eranian
2012-01-19 17:07 ` stephane eranian
2012-01-20 13:47 ` stephane eranian
2012-01-20 13:47 ` stephane eranian
2012-01-21 3:25 ` Ming Lei
2012-01-21 3:25 ` Ming Lei
2012-01-21 9:16 ` stephane eranian
2012-01-21 9:16 ` stephane eranian
2012-01-27 12:13 ` Will Deacon
2012-01-27 12:13 ` Will Deacon
2012-01-27 12:45 ` stephane eranian
2012-01-27 12:45 ` stephane eranian
2012-01-27 12:56 ` Måns Rullgård
2012-01-27 12:56 ` Måns Rullgård
2012-01-27 13:28 ` Will Deacon
2012-01-27 13:28 ` Will Deacon
2012-01-27 13:32 ` stephane eranian
2012-01-27 13:32 ` stephane eranian
2012-01-27 13:47 ` Måns Rullgård
2012-01-27 13:47 ` Måns Rullgård
2012-01-27 13:56 ` Will Deacon
2012-01-27 13:56 ` Will Deacon
2012-01-27 14:05 ` Måns Rullgård
2012-01-27 14:05 ` Måns Rullgård
2012-01-27 14:09 ` Ming Lei
2012-01-27 14:09 ` Ming Lei
2012-01-27 15:45 ` stephane eranian
2012-01-27 15:45 ` stephane eranian
2012-01-27 15:54 ` Will Deacon
2012-01-27 15:54 ` Will Deacon
2012-01-27 15:57 ` stephane eranian
2012-01-27 15:57 ` stephane eranian
2012-01-27 16:59 ` Will Deacon
2012-01-27 16:59 ` Will Deacon
2012-01-27 17:03 ` stephane eranian
2012-01-27 17:03 ` stephane eranian
2012-01-27 17:10 ` Will Deacon
2012-01-27 17:10 ` Will Deacon
2012-01-27 17:16 ` stephane eranian
2012-01-27 17:16 ` stephane eranian
2012-01-29 17:36 ` stephane eranian
2012-01-29 17:36 ` stephane eranian
2012-01-30 9:40 ` Ming Lei
2012-01-30 9:40 ` Ming Lei
2012-01-30 10:24 ` stephane eranian
2012-01-30 10:24 ` stephane eranian
2012-01-30 13:43 ` stephane eranian
2012-01-30 13:43 ` stephane eranian
2012-01-30 14:49 ` Ming Lei
2012-01-30 14:49 ` Ming Lei
2012-01-30 16:02 ` stephane eranian
2012-01-30 16:02 ` stephane eranian
2012-01-30 16:08 ` Måns Rullgård
2012-01-30 16:08 ` Måns Rullgård
2012-01-30 17:15 ` stephane eranian
2012-01-30 17:15 ` stephane eranian
2012-01-30 17:24 ` Will Deacon
2012-01-30 17:24 ` Will Deacon
2012-01-30 17:45 ` stephane eranian
2012-01-30 17:45 ` stephane eranian
2012-01-30 19:14 ` Will Deacon
2012-01-30 19:14 ` Will Deacon
2012-01-30 20:45 ` stephane eranian
2012-01-30 20:45 ` stephane eranian
2012-03-07 2:49 ` Ming Lei
2012-03-07 2:49 ` Ming Lei
2012-03-07 9:48 ` Will Deacon
2012-03-07 9:48 ` Will Deacon
2012-01-27 14:06 ` Ming Lei
2012-01-27 14:06 ` Ming Lei
2012-01-18 10:18 ` Russell King - ARM Linux
2012-01-18 10:18 ` Russell King - ARM Linux
[not found] <1328578047.1724.17.camel@dave-Dell-System-XPS-L502X>
[not found] ` <CAMQu2gwfo5JXAqQaLUNs7C7J3TUhEO2zOcyD0Rk-D_O61Yrfag@mail.gmail.com>
[not found] ` <CAMsRxfLNBbQO5XF+EHJqNsnW+s=ay3mjSV5dh=sxdwzktUu03g@mail.gmail.com>
[not found] ` <CAMQu2gzfNAwtf1c6jrTZpfGMSqBgBrQKmFTeCFzbvMh9ESBDUg@mail.gmail.com>
[not found] ` <CAMsRxfKR1ODH56BtcUT5Dv6qOVEYGVheEcW9ugXsZmLKok==bg@mail.gmail.com>
2012-02-07 10:53 ` Shilimkar, Santosh
2012-02-07 11:09 ` Shilimkar, Santosh
2012-02-07 11:25 ` stephane eranian
2012-02-07 11:39 ` Shilimkar, Santosh
2012-02-07 11:59 ` stephane eranian
2012-02-07 15:30 ` Will Deacon
2012-02-08 2:24 ` Ming Lei
2012-02-08 2:24 ` Ming Lei
2012-02-15 16:38 ` Peter Zijlstra
2012-02-15 16:38 ` Peter Zijlstra
2012-02-16 10:25 ` Ming Lei
2012-02-16 10:25 ` Ming Lei
2012-02-16 15:00 ` Will Deacon
2012-02-16 15:00 ` Will Deacon
2012-02-16 16:12 ` Ming Lei
2012-02-16 16:12 ` Ming Lei
2012-02-16 16:19 ` Peter Zijlstra
2012-02-16 16:19 ` Peter Zijlstra
2012-02-16 16:37 ` Ming Lei
2012-02-16 16:37 ` Ming Lei
2012-02-16 18:08 ` Will Deacon
2012-02-16 18:08 ` Will Deacon
2012-02-17 5:24 ` Ming Lei
2012-02-17 5:24 ` Ming Lei
2012-02-17 10:26 ` Will Deacon
2012-02-17 10:26 ` Will Deacon
2012-02-20 3:19 ` Ming Lei
2012-02-20 3:19 ` Ming Lei
2012-02-20 9:44 ` Will Deacon
2012-02-20 9:44 ` Will Deacon
2012-02-13 13:15 ` Will Deacon
[not found] ` <1329508513.1858.15.camel@dave-Dell-System-XPS-L502X>
2012-02-18 4:31 ` Shilimkar, Santosh
2012-04-03 9:44 ` Will Deacon
2012-04-03 9:47 ` Shilimkar, Santosh
[not found] ` <CACVXFVN0E_deS2d50mfufO5QZSwh=34BppCL++oxtc3nfN_ugA@mail.gmail.com>
[not found] ` <1328664644.1678.15.camel@dave-Dell-System-XPS-L502X>
2012-02-09 20:05 ` David A. Long
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