c6x: 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: Mark Salter <msalter@redhat.com>
Link: http://lkml.kernel.org/r/20130321215234.087033904@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index f6a3648f5ec3c7030a8c4294be4e3bee54a25b6c..af2aa4b44140d73b2a168debf4f772f1229f8ee3 100644 (file)
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -18,6 +18,7 @@ config C6X
        select OF_EARLY_FLATTREE
        select GENERIC_CLOCKEVENTS
        select MODULES_USE_ELF_RELA
+       select GENERIC_IDLE_LOOP
 
 config MMU
        def_bool n

diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 6434df476f7756f3f166547e41a6a01983098508..57d2ea8d19773828d620c98b8593f069ff32cd23 100644 (file)
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -33,7 +33,7 @@ extern asmlinkage void ret_from_kernel_thread(void);
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
 
-static void c6x_idle(void)
+void arch_cpu_idle(void)
 {
        unsigned long tmp;
 
@@ -49,32 +49,6 @@ static void c6x_idle(void)
                      : "=b"(tmp));
 }
 
-/*
- * The idle loop for C64x
- */
-void cpu_idle(void)
-{
-       /* endless idle loop with no priority at all */
-       while (1) {
-               tick_nohz_idle_enter();
-               rcu_idle_enter();
-               while (1) {
-                       local_irq_disable();
-                       if (need_resched()) {
-                               local_irq_enable();
-                               break;
-                       }
-                       c6x_idle(); /* enables local irqs */
-               }
-               rcu_idle_exit();
-               tick_nohz_idle_exit();
-
-               preempt_enable_no_resched();
-               schedule();
-               preempt_disable();
-       }
-}
-
 static void halt_loop(void)
 {
        printk(KERN_EMERG "System Halted, OK to turn off power\n");