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blackfin: Use generic idle thread allocation 

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Link: http://lkml.kernel.org/r/20120420124557.717064871@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-04-20 13:05:53 +00:00
parent a4cfc31da3
commit 6bba2682c6
2 changed files with 2 additions and 18 deletions
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1
arch/blackfin/Kconfig
View File

@ -37,6 +37,7 @@ config BLACKFIN
select GENERIC_IRQ_PROBE select GENERIC_IRQ_PROBE
select IRQ_PER_CPU if SMP select IRQ_PER_CPU if SMP
select HAVE_NMI_WATCHDOG if NMI_WATCHDOG select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
select GENERIC_SMP_IDLE_THREAD
config GENERIC_CSUM config GENERIC_CSUM
def_bool y def_bool y

19
arch/blackfin/mach-common/smp.c
View File

@ -340,27 +340,10 @@ void smp_send_stop(void)
return; return;
} }
int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
{ {
int ret; int ret;
struct blackfin_cpudata *ci = &per_cpu(cpu_data, cpu);
struct task_struct *idle = ci->idle;
if (idle) {
free_task(idle);
idle = NULL;
}
if (!idle) {
idle = fork_idle(cpu);
if (IS_ERR(idle)) {
printk(KERN_ERR "CPU%u: fork() failed\n", cpu);
return PTR_ERR(idle);
}
ci->idle = idle;
} else {
init_idle(idle, cpu);
}
secondary_stack = task_stack_page(idle) + THREAD_SIZE; secondary_stack = task_stack_page(idle) + THREAD_SIZE;
ret = platform_boot_secondary(cpu, idle); ret = platform_boot_secondary(cpu, idle);