[patch 12/34] c6x: Use generic idle loop

Thomas Gleixner
2013-03-21T22:00:22Z

[-- Attachment #1: c6x-use-generic-idle-loop.patch --]
[-- Type: text/plain, Size: 1601 bytes --]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mark Salter <msalter@redhat.com>
---
arch/c6x/Kconfig | 1 +
arch/c6x/kernel/process.c | 28 +---------------------------
2 files changed, 2 insertions(+), 27 deletions(-)

Index: linux-2.6/arch/c6x/Kconfig
===================================================================
--- linux-2.6.orig/arch/c6x/Kconfig
+++ linux-2.6/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
Index: linux-2.6/arch/c6x/kernel/process.c
===================================================================
--- linux-2.6.orig/arch/c6x/kernel/process.c
+++ linux-2.6/arch/c6x/kernel/process.c
@@ -33,7 +33,7 @@ extern asmlinkage void ret_from_kernel_t
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");