unicore: Use generic idle loop

KAGA-KOKO · KAGA-KOKO · commit aba92c9e2cf3 · 2013-04-08T17:39:29.000+02:00
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: Guan Xuetao <gxt@mprc.pku.edu.cn> Link: http://lkml.kernel.org/r/20130321215235.415426466@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
@@ -17,6 +17,7 @@ config UNICORE32
 	select ARCH_WANT_FRAME_POINTERS
 	select GENERIC_IOMAP
 	select MODULES_USE_ELF_REL
+	select GENERIC_IDLE_LOOP
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
@@ -45,25 +45,10 @@ static const char * const processor_modes[] = {
 	"UK18", "UK19", "UK1A", "EXTN", "UK1C", "UK1D", "UK1E", "SUSR"
 };
 
-void cpu_idle(void)
+void arch_cpu_idle(void)
 {
-	/* endless idle loop with no priority at all */
-	while (1) {
-		tick_nohz_idle_enter();
-		rcu_idle_enter();
-		while (!need_resched()) {
-			local_irq_disable();
-			stop_critical_timings();
-			cpu_do_idle();
-			local_irq_enable();
-			start_critical_timings();
-		}
-		rcu_idle_exit();
-		tick_nohz_idle_exit();
-		preempt_enable_no_resched();
-		schedule();
-		preempt_disable();
-	}
+	cpu_do_idle();
+	local_irq_enable();
 }
 
 static char reboot_mode = 'h';
