openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:42 +01:00
parent 25d67f860f
commit e46746cd55
2 changed files with 2 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/c6x/Kconfig
View File

@ -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

28
arch/c6x/kernel/process.c
View File

@ -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");