From e46746cd5542b74f1e34bb1b8a997c5c0a6e69ea Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 21 Mar 2013 22:49:42 +0100 Subject: [PATCH] c6x: Use generic idle loop Signed-off-by: Thomas Gleixner Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Reviewed-by: Cc: Srivatsa S. Bhat Cc: Magnus Damm Cc: Mark Salter Link: http://lkml.kernel.org/r/20130321215234.087033904@linutronix.de Signed-off-by: Thomas Gleixner --- arch/c6x/Kconfig | 1 + arch/c6x/kernel/process.c | 28 +--------------------------- 2 files changed, 2 insertions(+), 27 deletions(-) diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig index f6a3648..af2aa4b 100644 --- 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 6434df4..57d2ea8 100644 --- 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"); -- 2.7.4