Vaibhav Jain <vaibhav@xxxxxxxxxxxxx> writes: > This minor patch enables config option GENERIC_IDLE_POLL_SETUP for arch > powerpc. This should add support for kernel param 'nohlt'. Which is named after an 8086 instruction :), but oh well. > Powerpc kernel also supports another kernel boot-time param called > 'powersave' which can also be used to disable all cpu idle-states and > forces CPU to an idle-loop similar to what cpu_idle_poll() does. This > patch however makes powerpc kernel-parameters better aligned to the > generic boot-time parameters. It would be nice if we could make our powersave=off parameter just enable this generic logic. Have you looked at if that's possible? At a glance it looks like it should be, when cpu_idle_force_poll is true do_idle() never calls cpuidle_idle_call(), so the cpuidle drivers are never invoked. cheers
