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m32r: Use generic idle loop

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Replace the private poller.

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: Hirokazu Takata <takata@linux-m32r.org>
Link: http://lkml.kernel.org/r/20130321215234.470547189@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:48 +01:00
parent 91d591c387
commit 01436228bf
3 changed files with 2 additions and 19 deletions
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1
arch/m32r/Kconfig
View file

@ -13,6 +13,7 @@ config M32R
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_IDLE_LOOP
select GENERIC_ATOMIC64
select ARCH_USES_GETTIMEOFFSET
select MODULES_USE_ELF_RELA

18
arch/m32r/kernel/process.c
View file

@ -47,24 +47,6 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
void (*pm_power_off)(void) = NULL;
EXPORT_SYMBOL(pm_power_off);
/*
* The idle thread. There's no useful work to be
* done, so just try to conserve power and have a
* low exit latency (ie sit in a loop waiting for
* somebody to say that they'd like to reschedule)
*/
void cpu_idle (void)
{
/* endless idle loop with no priority at all */
while (1) {
rcu_idle_enter();
while (!need_resched())
cpu_relax();
rcu_idle_exit();
schedule_preempt_disabled();
}
}
void machine_restart(char *__unused)
{
#if defined(CONFIG_PLAT_MAPPI3)

2
arch/m32r/kernel/smpboot.c
View file

@ -432,7 +432,7 @@ int __init start_secondary(void *unused)
*/
local_flush_tlb_all();
cpu_idle();
cpu_startup_entry(CPUHP_ONLINE);
return 0;
}