From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC][PATCH 0/7] OMAP4 cpuidle cleanup
Date: Wed, 21 Mar 2012 15:26:10 +0530 [thread overview]
Message-ID: <4F69A5BA.1080804@ti.com> (raw)
In-Reply-To: <4F69A4A5.5020208@linaro.org>
On Wednesday 21 March 2012 03:21 PM, Daniel Lezcano wrote:
> On 03/21/2012 10:36 AM, Shilimkar, Santosh wrote:
>> On Wed, Mar 21, 2012 at 2:57 PM, Daniel Lezcano
>> <daniel.lezcano@linaro•org> wrote:
>>> This patchset is a proposition to improve a bit the code.
>>> The changes are code cleanup and does not change the behavior of the
>>> driver itself.
>>>
>> Thanks. Will have a look at your series.
>
> Cool, thanks.
>
>>> A couple a things call my intention. Why the cpuidle device is set
>>> for cpu0 only
>> Because the mainline code CPUIDLE is supported along with CPUhotplug.
>> This is going to change though with Couple CPUIDLE and corresponding
>> OMAP updates.
>
> Ok, thanks for the information. I will look deeper. What happens to cpu1
> when it is online and has nothing to do ?
>
>>> and why the WFI is not used ?
>>>
>> I didn't get this question. Do you mean the generic WFI?
>
I execute default idle loop.
> yes.
>
>> If yes, then, it's mainly because OMAP need additional
>> custom barriers.
>
> Ah, ok. I am not sure if it is possible but that may be cool if we can
> call cpu_do_idle instead with additional barrier.
>
There is no need. Since code around WFI is customised, it make no sense
to call cpu_do_idle(0 ofr only that instruction sake.
Regards
Santosh
next prev parent reply other threads:[~2012-03-21 9:56 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-21 9:27 [RFC][PATCH 0/7] OMAP4 cpuidle cleanup Daniel Lezcano
2012-03-21 9:27 ` [RFC][PATCH 1/7] ARM: OMAP4: cpuidle - Remove unused valid field Daniel Lezcano
2012-03-21 9:41 ` Shilimkar, Santosh
2012-03-21 9:46 ` Daniel Lezcano
2012-03-21 10:03 ` Santosh Shilimkar
2012-03-21 13:28 ` Jean Pihet
2012-03-21 9:27 ` [RFC][PATCH 2/7] ARM: OMAP4: cpuidle - Declare the states with the driver declaration Daniel Lezcano
2012-03-21 9:50 ` Santosh Shilimkar
2012-03-21 13:31 ` Jean Pihet
2012-03-21 14:12 ` Daniel Lezcano
2012-03-21 9:27 ` [RFC][PATCH 3/7] ARM: OMAP4: cpuidle - Remove the cpuidle_params_table table Daniel Lezcano
2012-03-21 9:27 ` [RFC][PATCH 4/7] ARM: OMAP4: cpuidle - fix static omap4_idle_data declaration Daniel Lezcano
2012-03-21 9:51 ` Santosh Shilimkar
2012-03-21 9:27 ` [RFC][PATCH 5/7] ARM: OMAP4: cpuidle - Initialize omap4_idle_data at compile time Daniel Lezcano
2012-03-21 9:27 ` [RFC][PATCH 6/7] ARM: OMAP4: cpuidle - use the omap4_idle_data variable directly Daniel Lezcano
2012-03-21 9:27 ` [RFC][PATCH 7/7] ARM: OMAP4: cpuidle - remove omap4_idle_data initialization at boot time Daniel Lezcano
2012-03-21 9:36 ` [RFC][PATCH 0/7] OMAP4 cpuidle cleanup Shilimkar, Santosh
2012-03-21 9:51 ` Daniel Lezcano
2012-03-21 9:56 ` Santosh Shilimkar [this message]
2012-03-21 10:43 ` Daniel Lezcano
2012-03-21 10:49 ` Shilimkar, Santosh
2012-03-21 10:59 ` Daniel Lezcano
2012-03-21 10:07 ` Santosh Shilimkar
2012-03-21 10:49 ` Daniel Lezcano
2012-03-21 13:19 ` Jean Pihet
2012-03-21 14:13 ` Daniel Lezcano
2012-03-21 14:23 ` Shilimkar, Santosh
2012-03-21 13:43 ` Jean Pihet
2012-03-21 14:19 ` Daniel Lezcano
2012-03-21 16:42 ` Daniel Lezcano
2012-03-21 21:54 ` Kevin Hilman
2012-03-21 22:20 ` Daniel Lezcano
2012-03-22 18:36 ` Kevin Hilman
2012-03-22 21:45 ` Daniel Lezcano
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