/*
* __cpu_disable runs on the processor to be shutdown.
*/
int __cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
int ret;
ret = op_cpu_disable(cpu);
if (ret)
return ret;
/*
* Take this CPU offline. Once we clear this, we can't return,
* and we must not schedule until we're ready to give up the cpu.
*/
set_cpu_online(cpu, false);
/*
* OK - migrate IRQs away from this CPU
*/
migrate_irqs();
/*
* Stop the local timer for this CPU.
*/
percpu_timer_stop();
/*
* Remove this CPU from the vm mask set of all processes.
*/
clear_tasks_mm_cpumask(cpu);
return 0;
}
int jzsoc_cpu_disable(void)
{
unsigned int cpu = smp_processor_id();
// unsigned int status;
if (cpu == 0) /* FIXME */
return -EBUSY;
cpu_clear(cpu, cpu_online_map);
cpu_clear(cpu, cpu_callin_map);
local_irq_disable();
percpu_timer_stop();
cpu_reim &= ~(1 << cpu);
smp_disable_interrupt(cpu);
smp_enable_interrupt(0);
reset_irq_resp_fifo(cpu);
return 0;
}
