CC: +Viresh and linux-pm On Saturday, December 28, 2013 12:09:01 AM David Woodfall wrote: > On (27/12/13 19:53), Dave Woodfall <d...@dawoodfall.net> put forth the > proposition: > >On (27/12/13 20:44), Heinz Diehl <h...@fancy-poultry.org> put forth the > >proposition: > >>On 27.12.2013, David Woodfall wrote: > >> > >>>But any of the newer kernel versions I've tested only give me > >>>performance and powersave. > >> > >>I don't use any Fedora kernel, so I can't tell which governors are > >>enabled in those. You should check the value of "CONFIG_CPU_FREQ_GOV" > >>in the respective .config file for your installed kernel. > >> > >>In short: It seems that only "performance" and "powersave" are > >>compiled in. > > > >No, I used the same .config in all versions that I tested. I've also > >tried setting them as modules rather than built-in. This is the stock > >slackware .config: > > > >CONFIG_CPU_FREQ=y > >CONFIG_CPU_FREQ_TABLE=m > >CONFIG_CPU_FREQ_GOV_COMMON=y > >CONFIG_CPU_FREQ_STAT=m > >CONFIG_CPU_FREQ_STAT_DETAILS=y > ># CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set > >CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y > ># CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set > ># CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set > >CONFIG_CPU_FREQ_GOV_PERFORMANCE=m > >CONFIG_CPU_FREQ_GOV_POWERSAVE=m > >CONFIG_CPU_FREQ_GOV_USERSPACE=y > >CONFIG_CPU_FREQ_GOV_ONDEMAND=m > >CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m > > > >And modprobing any governor module does not change the output of > >scaling_available_governors. > > > >-Dave > > I'm also experiencing this with a Intel G640 dual core machine. > Exactly the same effect.
Do you have CONFIG_X86_INTEL_PSTATE set? -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
