Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 13:11:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

cris: Use generic idle loop

Browse Source 
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>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Link: http://lkml.kernel.org/r/20130321215234.148829489@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2013-03-21 22:49:43 +01:00
parent e46746cd55
commit 8dc7c5ecd8
5 changed files with 9 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/cris/Kconfig
View File

@ -48,6 +48,7 @@ config CRIS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
select GENERIC_IDLE_LOOP
select GENERIC_CMOS_UPDATE
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS2

3
arch/cris/arch-v10/kernel/process.c
View File

@ -30,8 +30,9 @@ void etrax_gpio_wake_up_check(void); /* drivers/gpio.c */
void default_idle(void)
{
#ifdef CONFIG_ETRAX_GPIO
etrax_gpio_wake_up_check();
etrax_gpio_wake_up_check();
#endif
local_irq_enable();
}
/*

10
arch/cris/arch-v32/kernel/process.c
View File

@ -23,13 +23,9 @@ extern void stop_watchdog(void);
/* We use this if we don't have any better idle routine. */
void default_idle(void)
{
local_irq_disable();
if (!need_resched()) {
/* Halt until exception. */
__asm__ volatile("ei \n\t"
"halt ");
}
local_irq_enable();
/* Halt until exception. */
__asm__ volatile("ei \n\t"
"halt ");
}
/*

4
arch/cris/arch-v32/kernel/smp.c
View File

@ -145,8 +145,6 @@ smp_boot_one_cpu(int cpuid, struct task_struct idle)
* specific stuff such as the local timer and the MMU. */
void __init smp_callin(void)
{
extern void cpu_idle(void);
int cpu = cpu_now_booting;
reg_intr_vect_rw_mask vect_mask = {0};
@ -170,7 +168,7 @@ void __init smp_callin(void)
local_irq_enable();
set_cpu_online(cpu, true);
cpu_idle();
cpu_startup_entry(CPUHP_ONLINE);
}
/* Stop execution on this CPU.*/

24
arch/cris/kernel/process.c
View File

@ -34,29 +34,9 @@ extern void default_idle(void);
void (*pm_power_off)(void);
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)
void arch_cpu_idle(void)
{
/* endless idle loop with no priority at all */
while (1) {
rcu_idle_enter();
while (!need_resched()) {
/*
* Mark this as an RCU critical section so that
* synchronize_kernel() in the unload path waits
* for our completion.
*/
default_idle();
}
rcu_idle_exit();
schedule_preempt_disabled();
}
default_idle();
}
void hard_reset_now (void);