On 01/14/2012 12:52 PM, Somebody in the thread at some point said:
On Fri, Jan 13, 2012 at 2:41 PM, Amit Kucheria<amit.kuche...@linaro.org> wrote:
On Fri, Jan 13, 2012 at 7:14 PM, Dechesne, Nicolas<n-deche...@ti.com> wrote:
On Fri, Jan 13, 2012 at 5:59 PM, Andy Green<andy.gr...@linaro.org> wrote:
Amit, do you know of a good place to raid for better cpuidle, closer to
upstream than OZ?
wasn't that merged in 3.2? are you looking for that :
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=9827266
What was merged depends on hotplug, it isn't SMP cpuidle. At this
point, I'm quite confused about the history on what happened to the
SMP cpuidle driver and why it wasn't merged. Mike or Kevin should
know.
Amit is correct. The hotplug-dependent cpuidle got merged.
The SMP CPUidle patches have been put on the list and should work
patch into a recent kernel:
http://article.gmane.org/gmane.linux.ports.tegra/2649
However the OMAP4 support seems to be missing:
http://article.gmane.org/gmane.linux.ports.arm.omap/69186
So this isn't straightforward, but at least it's headed in the right direction.
Thanks for the info... it sounds like we should try to add the SMP
CPUidle from upstream and ask Santosh for his patches and see what happens.
Unfortunately we've been trying to use Andrey's new
linux-linaro-tracking as a basis and despite fixing some of the problems
the resulting tree still blows chunks midway through boot. So I think
we'll have to give up on that for now and retry later.
-Andy
--
Andy Green | TI Landing Team Leader
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