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From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] Shrink sched_clock some more
Date: Tue, 01 Nov 2011 14:29:00 +0000	[thread overview]
Message-ID: <4EB0022C.7080109@arm.com> (raw)
In-Reply-To: <4EAAF5AE.6090300@codeaurora.org>

On 28/10/11 19:34, Stephen Boyd wrote:
> On 09/23/11 01:52, Marc Zyngier wrote:
>> On 22/09/11 16:36, Russell King - ARM Linux wrote:
>>> ... by getting rid of the fixed-constant optimization, and moving the
>>> update code into arch/arm/kernel/sched_clock.c.
>>>
>>> Platforms now only have to supply a function to read the sched_clock
>>> register, and some basic information such as the number of significant
>>> bits and the tick rate.
>> This looks similar to a patch I posted a while ago:
>> http://patchwork.ozlabs.org/patch/112318/
>>
>>
> 
> Can we get one of these two patches merged next merge window? I'd like
> to add sched_clock support to MSM and building on top of this patch is
> easier than the other way around.

I'm happy either way. The only problem I can see with Russell's patch is
the lack of support for platforms that do not actually implement a
sched_clock_read() function.

I've worked around this by having a default jiffy based read function,
but there is probably other, better solutions.

	M.
-- 
Jazz is not dead. It just smells funny...

  parent reply	other threads:[~2011-11-01 14:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-22 15:36 [RFC] Shrink sched_clock some more Russell King - ARM Linux
2011-09-22 18:16 ` Nicolas Pitre
2011-09-23  6:22   ` Kyungmin Park
2011-09-23 20:44   ` Russell King - ARM Linux
2011-09-23  8:52 ` Marc Zyngier
2011-10-28 18:34   ` Stephen Boyd
2011-10-28 22:50     ` Nicolas Pitre
2011-11-01 14:29     ` Marc Zyngier [this message]
2011-11-08  0:13       ` Kyungmin Park
2011-09-28  8:59 ` Linus Walleij

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