score: Use generic idle loop
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Link: http://lkml.kernel.org/r/20130321215235.147909863@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index c8def8b..eaac45d 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -11,6 +11,7 @@
select ARCH_DISCARD_MEMBLOCK
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
+ select GENERIC_IDLE_LOOP
select HAVE_MOD_ARCH_SPECIFIC
select VIRT_TO_BUS
select MODULES_USE_ELF_REL
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index 7956846..f4c6d02 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -41,24 +41,6 @@
/* If or when software machine-power-off is implemented, add code here. */
void machine_power_off(void) {}
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void __noreturn cpu_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- rcu_idle_enter();
- while (!need_resched())
- barrier();
- rcu_idle_exit();
- schedule_preempt_disabled();
- }
-}
-
void ret_from_fork(void);
void ret_from_kernel_thread(void);