[POWERPC] Enable tickless idle and high res timers for powerpc

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index a9e9cbd32975..abd2957fe537 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/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();
 
@@ -90,6 +92,7 @@ void cpu_idle(void)
 
                 HMT_medium();
                 ppc64_runlatch_on();
+                tick_nohz_restart_sched_tick();
                 if (cpu_should_die())
                         cpu_die();
                 preempt_enable_no_resched();