Li, Aubrey wrote: > Andrei Dorofeev wrote: > > >> I also think it should be HW_ALL per socket if P-state hardware >> coordination is supported (there's CPUID bit for that) or SW_ALL per >> socket otherwise. >> > > MISC_PWR_MGMT(bit0) MSR can tell us if it's HW_ALL or not. > Ideally, there is an option in the BIOS for that. >
Where is this bit documented? I didn't find it in SDM vol3a. Thanks! Mark > Thanks, > -Aubrey > > >> - Andrei >> >> On Wed, Sep 24, 2008 at 3:26 PM, Mark Haywood >> <Mark.Haywood at sun.com> wrote: >> >>> Eric Saxe wrote: >>> >>>> I recall that on some systems, _PSD didn't exist, in which case >>>> cpudrv defaults to using the socket as a P-State dependency domain. >>>> Does anyone know what the domain coordination type (e.g. SW_ALL, >>>> SW_ANY, HW_ALL) would default to in that case? >>>> >>>> >>> I believe it is HW_ALL, but Aubrey or Asok might be able to say for >>> sure. >>> >>> Mark >>> >>> >>>> Thanks, >>>> -Eric >>>> > _______________________________________________ > pm-discuss mailing list > pm-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/pm-discuss >
