From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kumar Gala Subject: Re: [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM conversion Date: Thu, 23 Jan 2014 16:04:28 -0600 Message-ID: <463D867F-6EF1-40E4-8AFB-28E54433CD79@codeaurora.org> References: <1387845593-10050-1-git-send-email-sboyd@codeaurora.org> <201401082237.36626.arnd@arndb.de> <52CE005A.3070802@codeaurora.org> Mime-Version: 1.0 (Mac OS X Mail 7.1 \(1827\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <52CE005A.3070802-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Olof Johansson , Arnd Bergmann , Kevin Hilman Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Mark Rutland , devicetree , Lorenzo Pieralisi , Russell King , linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Daniel Lezcano , Rohit Vaswani , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, David Brown , Stephen Boyd List-Id: linux-arm-msm@vger.kernel.org On Jan 8, 2014, at 7:50 PM, Stephen Boyd wrote: > On 01/08/14 13:37, Arnd Bergmann wrote: >> On Tuesday 24 December 2013, Stephen Boyd wrote: >>> This is a rework of patches sent a months back by Rohit[1]. >>> The goal of these patches is to add support for SMP and (basic) >>> hotplug on MSM based SoCs. To get there, we add support for a >>> generic way to hook in SMP/hotplug support code based on DT. To >>> show how it's used, we convert the MSM8660 SMP support code over >>> to the new method. After that we add support for the rest of the >>> upstream MSM SoCs (note these patches are piled high on top of >>> Rohit's patches to add 8074 support to MSM[2] and my follow ups[3,4], >>> but this should only matter to the MSM maintainers). >>> >>> This is one of the last items of code that still requires us to have >>> a mach directory and a machine descriptor. We should be able to move >>> the hotplug/smp code out of mach directories if this approach is >>> accepted. >> The implementation looks ok to me, but I wonder whether on a global >> scale we want to tie it more closely to the cpuidle implementations. >> We already have a drivers/cpuidle framework, and while I admit >> that I'm not familiar with the code in there, I would assume that >> the smp operations and the cpuidle code usually go hand in hand. > > Sure. Right now the smp ops code is fairly well tied into the arch layer > so it sounds like there is some future work when we move this stuff out > of the mach directory. > > Would arm-soc be able to pick these patches up for 3.14? I think > everything is in place for these patches now that Mark has reviewed them. Ping, wondering if arm-soc would pick up: ARM: Introduce CPU_METHOD_OF_DECLARE() for cpu hotplug/smp The other patches are all msm specific so we can handle them through the normal channels. - k -- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html