Hi! > > OTOH... there's preparation for shutdown, which does not fit here too > > much, and preparation for apm sleep, which does not fit, either: > > > > For shutdown, power state is not interesting, and you do not even need > > to freeze, but you'd better spin down the disks, or you loose your > > data. > > If you don't freeze, a stal request may spin back up. Also, shutdown is > used for kexec as well, which absolutely need DMA off, that is freeze > semantics. Well, we probably want different flags for kexec. > I suggest we define a shutdown message too. By default, busses would > call shutdown if it exist, if not, pass suspend with the shutdown > message. Looks ok ? Yep... > > For apm suspend... noone knows whats really required. Theoretically, > > neither freeze nor powersaving is needed. > > Freeze would be a good thing tho. There are interesting "races" with APM > suspend that would be fixed... Also, saving/restoring device states > since APM tend to fail restore some stuffs here or there. I believe it would be nicer to SUSPEND, because apm bios may fail to put devices into powersave... Pavel PS: The mail with list of states was sent before I received this one... -- People were complaining that M$ turns users into beta-testers... ...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
