commit 1ad749980a5fda46f7ec920d8409ddcc89b38714
author Tony Breeds <tony@bakeyournoodle.com> Fri Sep 21 13:26:03 2007 +1000
committer Paul Mackerras <paulus@samba.org> Wed Oct 03 15:44:34 2007 +1000
tree 3c1b28f1f6e03660c36e6f320fce54e4e5a1eb5e
parent d831d0b83f205888f4be4dee0a074ad67ef809b3

[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>

arch/powerpc/kernel/idle.c

diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index a9e9cbd..abd2957 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 @@
 
 	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 @@
 
 		HMT_medium();
 		ppc64_runlatch_on();
+		tick_nohz_restart_sched_tick();
 		if (cpu_should_die())
 			cpu_die();
 		preempt_enable_no_resched();