On Mon, May 03, 2010 at 10:01:50AM -0700, Kevin Hilman wrote: > Jonathan Corbet <corbet@xxxxxxx> writes: > > Well, shallow could mean that the state lacks the CPUIDLE_FLAG_DEEP > > flag; that should be relatively portable. In any case, it seems > > more so than "if I put in a 55us latency requirement, I'll stay out > > of C3". > > I guess it depends on your goal. Do you just want to stay out of C3 > on your current platform? or do you want to stay out of any low-power > state (on any platform) where you'll have a latency of > 55 usecs? I'd say that one plausible requirement is "DMA works", with another being "all interrupts work" as distinguished from "wakeup interrupts work". -- Matthew Garrett | mjg59@xxxxxxxxxxxxx _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
