Messages in this thread | | | Date | Thu, 03 Jan 2008 22:16:57 -0500 | From | Mark Lord <> | Subject | Re: + restore-missing-sysfs-max_cstate-attr.patch added to -mm tree |
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Venki Pallipadi wrote: > Reintroduce run time configurable max_cstate for !CPU_IDLE case. > > Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> > > Index: linux-2.6.24-rc/drivers/acpi/processor_idle.c > =================================================================== > --- linux-2.6.24-rc.orig/drivers/acpi/processor_idle.c > +++ linux-2.6.24-rc/drivers/acpi/processor_idle.c > @@ -76,7 +76,11 @@ static void (*pm_idle_save) (void) __rea > #define PM_TIMER_TICKS_TO_US(p) (((p) * 1000)/(PM_TIMER_FREQUENCY/1000)) > > static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; > +#ifdef CONFIG_CPU_IDLE > module_param(max_cstate, uint, 0000); > +#else > +module_param(max_cstate, uint, 0644); > +#endif > static unsigned int nocst __read_mostly; > module_param(nocst, uint, 0000); > ..
I'll try and re-test with this on Friday.
Meanwhile, can you give a short summary of how behaviour differs between CONFIG_CPU_IDLE and !CONFIG_CPU_IDLE ??
I'm not at all clear on how this really affects things.
Thanks.
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