On Wed, Sep 16, 2015 at 03:23:21PM +0100, Jisheng Zhang wrote: > Currently, if cpuidle is disabled or not supported, powertop reports > zero wakeups and zero events. This is due to the cpu_idle tracepoints > are missing. > > This patch is to make cpu_idle tracepoints always available even if > cpuidle is disabled or not supported. > > Signed-off-by: Jisheng Zhang <jszh...@marvell.com>
Is there a reason why this code cannot be moved to the generic idle loop ? Thanks, Lorenzo > --- > arch/arm64/kernel/process.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c > index 223b093..f75b540 100644 > --- a/arch/arm64/kernel/process.c > +++ b/arch/arm64/kernel/process.c > @@ -44,6 +44,7 @@ > #include <linux/hw_breakpoint.h> > #include <linux/personality.h> > #include <linux/notifier.h> > +#include <trace/events/power.h> > > #include <asm/compat.h> > #include <asm/cacheflush.h> > @@ -75,8 +76,10 @@ void arch_cpu_idle(void) > * This should do all the clock switching and wait for interrupt > * tricks > */ > + trace_cpu_idle_rcuidle(1, smp_processor_id()); > cpu_do_idle(); > local_irq_enable(); > + trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); > } > > #ifdef CONFIG_HOTPLUG_CPU > -- > 2.5.1 > > -- > 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/ > -- 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/
