On Wednesday, October 06, 2010, Matthew Garrett wrote: > On Wed, Oct 06, 2010 at 09:14:07AM -0700, Moore, Robert wrote: > > > Although there exists a single Windows document mentions this behavior as a windows "feature", I'm not 100% convinced that this is actually true. AFAIK, we've never seen a machine that depends on an "implicit notify" on a device when a wake GPE happens. > > Such behaviour would be irrelevant for system sleep/wake - the only > requirement is in runtime power management. > > > It appears to me that the biggest issue right now is the fact that a Notify() must be performed on a Device object, and the problem is how to associate the GPE with the device object. > > The other important aspect of this is that a single GPE may correspond > to multiple devices. The methods will generally cope with this by either > sending multiple notifies, executing some SMM code to identify the > relevant device or reading PCI configuration registers to identify the > source of the wakeup. We need to handle that case as well. So, as I said, we can modify acpi_gpe_can_wake() to pass a device object to ACPICA. Then, the device object will be added to the list of devices to Notify() if the GPE is signaled. Plain and simple. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
