Hello, all. This patchset implements new Power Management for libata. Currently, only controller-wide suspend and resume are supported. No per-device power management yet. Both memsleep and disksleep work on supported controllers. All PM operations are performed by EH and thus fully synchronized w/ EH. Suspend/resume operations should be safe under all circumstances as long as libata is concerned. Attaching/detaching/exchanging devices while sleeping is allowed and handled correctly. ata_piix, sata_sil and sata_sil24 are updated to use new PM. PM is tested on the following machines. * ASUS P5LD2: sky2 disabled as it oopses on PM O ICH7R in piix mode (advanced/compatible) O sil3112 PCI card O sil3114 PCI card O sil3124 PCI-x card on PCI slot X sil3132 failed probably due to PCI-e PM problem * Fujitsu lifebook P7120: enabled ATA_ENABLE_PATA and added entry for 0x266f in ata_piix pci table. Net console makes resume from memsleep fail. O ICH6M in piix mode O sil3112 PCMCIA card This patchset contains 10 patches. #01-04 prep for new PM #05-06 implement new PM #07-10 update LLDs This patchset is against upstream (aeb2ecd6096182cc080d37679080c0f088dcd4a4) + [1] kill-ATA_FLAG_SRST patch + [2] shift-ATA_FLAG_-bits patch Jens, Mark, can you guys please test if this patch works on your notebooks? Note that AHCI isn't updated yet. Zhao, can you port your AHCI PM stuff over this? This should solve the problem you talked about in the other mail. Recent changes update ahci such that it listens to more PHY events for hotplug and that causes EH to kick in after resuming. The original PM implementation didn't synchronize w/ EH and thus caused problems. This patchset is for review only. Thanks. -- tejun [1] http://marc.theaimsgroup.com/?l=linux-ide&m=115012501502940&w=2 [2] http://marc.theaimsgroup.com/?l=linux-ide&m=115012349728574&w=2 - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html