:) As you can see, if you make the source available somewhere, there is plenty of people interested in dissecting it.
Jon, if you start working on them in December, we'll almost certainly miss the 2.6.38 merge window to get it integrated to mainline. /Amit p.s. /me makes a note to talk to bo...@arm et al. regarding this. On 10 Oct 12, Jon Callan wrote: > Well, my plan was to... er... post a message on linaro-dev and see happened! > > And yes, refactor as an ARM-common driver + SoC-specific stubs, that sounds > about right. > > I plan to work on the Linux integration from 1st December. I have done some > Linux kernel work before but I'm a little rusty. > > Jon. > > -----Original Message----- > From: Amit Kucheria [mailto:amit.kuche...@linaro.org] > Sent: 12 October 2010 12:04 > To: Jon Callan > Cc: linaro-dev@lists.linaro.org > Subject: Re: Common ARM context save/restore code > > Jon, > > I'm sure you anticipated this - What is your plan for pushing this out > to the kernel? :) > > And how can we help? > > On Tue, Oct 12, 2010 at 1:39 PM, Jon Callan <jon.cal...@arm.com> wrote: > > Vishwa, > > > > I have a more-or-less complete set of example code for CPU context > > save/restore, currently supporting A5/A8/A9 and with planned support for > > Eagle. > > > > It is structured as "firmware" at the moment, but it would be much better > > if it was integrated into the ARM Linux kernel. The idea is the kernel > > calls it from CPUidle, and it saves all CPU context and cuts the power. > > Then when power returns, it restores all CPU context and returns to the > > kernel as if nothing has happened. > > > > It handles just the CPU and cluster context, which on A9mpcore includes > > MMU, GIC, VFP, SCU, L2cc, Debug, etc. It takes care of cleaning caches and > > entering/leaving the coherency domain. There is also support for TrustZone, > > but as you say that's quite platform-specific. > > > > So we would need to integrate this with the SoC-specific code somehow. > > So you need to refactor these to an ARM-common driver and SoC-specific stubs? > > /Amit > > -- IMPORTANT NOTICE: The contents of this email and any attachments are > confidential and may also be privileged. If you are not the intended > recipient, please notify the sender immediately and do not disclose the > contents to any other person, use it for any purpose, or store or copy the > information in any medium. Thank you. _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
