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xtensa: Use generic idle loop

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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: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Chris Zankel <chris@zankel.net>
Link: http://lkml.kernel.org/r/20130321215235.546600507@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:50:04 +01:00
parent 7d1a941731
commit f4e2e9a4b2
2 changed files with 3 additions and 12 deletions
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1
arch/xtensa/Kconfig
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@ -19,6 +19,7 @@ config XTENSA
select CLONE_BACKWARDS
select IRQ_DOMAIN
select HAVE_OPROFILE
select GENERIC_IDLE_LOOP
help
Xtensa processors are 32-bit RISC machines designed by Tensilica
primarily for embedded systems. These processors are both

14
arch/xtensa/kernel/process.c
View File

@ -105,19 +105,9 @@ void coprocessor_flush_all(struct thread_info *ti)
/*
* Powermanagement idle function, if any is provided by the platform.
*/
void cpu_idle(void)
void arch_cpu_idle(void)
{
local_irq_enable();
/* endless idle loop with no priority at all */
while (1) {
rcu_idle_enter();
while (!need_resched())
platform_idle();
rcu_idle_exit();
schedule_preempt_disabled();
}
platform_idle();
}
/*