On Thu, Aug 20, 2009 at 11:24:50AM +0800, Shaohua Li wrote: > On Wed, Aug 19, 2009 at 07:52:10PM +0800, Matthew Garrett wrote: > > I'm not averse to the general concept, but I'm not entirely sold on it > > being necessary. All the hardware I'm aware of will send non-PME events > > as a notification on a specific device. Under what circumstances will we > > get a wakeup GPE for a non-PME device without knowing which device > > should be woken? > Below code is gotten from a laptop (samsung-x10), the PCIB is the PCI bridge. > We can't guarantee the device which gets a wakeup event notification is really > the device which invokes the wakeup event. _L0B will only be triggered if a PME is generated, so we'll be able to determine which device generated the wakeup by looking at the PME registers. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
