On Saturday, December 01, 2007 3:28 AM, Eric Saxe wrote: > Eric Saxe wrote: >> Li, Aubrey wrote: >>> C-state driver will let the processor go into deeper c-state. >>> >>> >> >> I was thinking would use the existing mwait code path to bring the >> processor into the deeper c-states? >> >> ...or are you suggesting that the c-state driver would contain code >> that is invoked out of that path? >> > Sorry. In case you can't parse the above, let me try again. ;) > > I was thinking we would use the existing mwait code path to bring the > processor into the deeper c-states. > Are you suggesting that the c-state driver would contain the code that > could be invoked out of that path?... > or something else? > > Thanks, > -Eric
The path should not be different. It's just that mwait can't let the processor go into deeper c-state. The coming idle function will include mwait path, which let the processor go into C1, and the c-state driver interface, which let the processor go into C2, C3 ... Thanks, -Aubrey
