Linux 3.2 Is Still Looking To Be Power Hungry
The PCI subsystem pull for the Linux 3.2 kernel was published on Friday evening. If you were hoping it would rework PCI-E ASPM (Active-State Power Management) to be more like the Windows implementation or for more PCI drivers to be setting the bits directly to support it (effectively white-listing drivers/hardware), it didn't happen yet.
The main PCI pull request for Linux 3.2 has some MPS (Maximum Payload Size) and PASID (Process Address Space ID) stuff, but nothing to improve the Linux PCI-E ASPM situation.
The only PCI power management related changes in this pull is extending PME (PCI Power Management Events) polling to all PCI devices. The extended PME polling is talked about in , but it's not related to the ASPM problems.