From: nicolas.pitre@linaro.org (Nicolas Pitre)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 1/8] ARM: Add commonly used cpuidle init code
Date: Fri, 9 Dec 2011 14:48:48 -0500 (EST) [thread overview]
Message-ID: <alpine.LFD.2.02.1112091434490.2907@xanadu.home> (raw)
In-Reply-To: <4EE212FF.1080202@gmail.com>
On Fri, 9 Dec 2011, Rob Herring wrote:
> On 12/08/2011 03:46 PM, Rob Lee wrote:
> > to start with. If the local_fiq_enable/disable calls can be handled
> > in a community friendly way for any architecture, then perhaps I can
> > just move the header file code to linux/include/cpuidle.h.
>
> Maybe we should think about whether we even need to disable fiq. You
> probably don't use low latency interrupt and a high latency low power
> mode together.
Agreed. FIQs should be invisible and normally not be interfered with by
generic kernel code. If some CPU specific special low power mode really
needs FIQs to be masked out, then that should be done by the code
dealing with that mode. And that is valid only if you do make use of
FIQs in the first place.
Nicolas
next prev parent reply other threads:[~2011-12-09 19:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-06 4:38 [RFC PATCH 0/8] Add common ARM cpuidle init code Robert Lee
2011-12-06 4:38 ` [RFC PATCH 1/8] ARM: Add commonly used " Robert Lee
2011-12-06 11:47 ` Mark Brown
2011-12-08 17:34 ` Rob Lee
2011-12-09 8:25 ` Mark Brown
2011-12-06 15:06 ` Rob Herring
2011-12-08 21:46 ` Rob Lee
2011-12-09 13:54 ` Rob Herring
2011-12-09 15:55 ` Rob Lee
2011-12-09 19:48 ` Nicolas Pitre [this message]
2011-12-06 4:38 ` [RFC PATCH 2/8] ARM: at91: Replace init with new common ARM " Robert Lee
2011-12-06 4:38 ` [RFC PATCH 3/8] ARM: kirkwood: " Robert Lee
2011-12-06 4:38 ` [RFC PATCH 4/8] ARM: exynos: " Robert Lee
2011-12-06 4:38 ` [RFC PATCH 5/8] ARM: davinci: " Robert Lee
2011-12-06 4:38 ` [RFC PATCH 6/8] ARM: shmobile: " Robert Lee
2011-12-06 4:38 ` [RFC PATCH 7/8] ARM: imx: Add mx5 clock changes necessary for low power Robert Lee
2011-12-06 4:38 ` [RFC PATCH 8/8] ARM: imx: Add mx5 cpuidle implmentation Robert Lee
2011-12-08 14:56 ` [RFC PATCH 0/8] Add common ARM cpuidle init code Shawn Guo
2011-12-08 15:37 ` Arnd Bergmann
2012-01-03 14:54 ` Daniel Lezcano
2012-01-03 16:02 ` Arnd Bergmann
2012-01-04 9:17 ` Daniel Lezcano
2012-01-04 18:05 ` Rob Lee
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