---
 arch/powerpc/Kconfig       |    1 +
 arch/powerpc/kernel/idle.c |    3 +++
 2 files changed, 4 insertions(+)

Index: work-powerpc.git/arch/powerpc/Kconfig
===================================================================
--- work-powerpc.git.orig/arch/powerpc/Kconfig
+++ work-powerpc.git/arch/powerpc/Kconfig
@@ -416,6 +416,7 @@ config GENERIC_CLOCKEVENTS
 	  NOTE: This is not compatible with the deterministic time accounting
 	  option on PPC64.
 
+source kernel/time/Kconfig
 source kernel/Kconfig.preempt
 source "fs/Kconfig.binfmt"
 
Index: work-powerpc.git/arch/powerpc/kernel/idle.c
===================================================================
--- work-powerpc.git.orig/arch/powerpc/kernel/idle.c
+++ work-powerpc.git/arch/powerpc/kernel/idle.c
@@ -24,6 +24,7 @@
 #include <linux/smp.h>
 #include <linux/cpu.h>
 #include <linux/sysctl.h>
+#include <linux/tick.h>
 
 #include <asm/system.h>
 #include <asm/processor.h>
@@ -59,6 +60,7 @@ void cpu_idle(void)
 
 	set_thread_flag(TIF_POLLING_NRFLAG);
 	while (1) {
+		tick_nohz_stop_sched_tick();
 		while (!need_resched() && !cpu_should_die()) {
 			ppc64_runlatch_off();
 
@@ -92,6 +94,7 @@ void cpu_idle(void)
 		ppc64_runlatch_on();
 		if (cpu_should_die())
 			cpu_die();
+		tick_nohz_restart_sched_tick();
 		preempt_enable_no_resched();
 		schedule();
 		preempt_disable();