mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-22 17:33:01 +00:00
cd916d31cc
Consolidation: remove the pending_irq_cpumask[NR_IRQS] array and move it into the irq_desc[NR_IRQS].pending_mask field. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
|
|
#include <linux/irq.h>
|
|
|
|
void set_pending_irq(unsigned int irq, cpumask_t mask)
|
|
{
|
|
struct irq_desc *desc = irq_desc + irq;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&desc->lock, flags);
|
|
desc->move_irq = 1;
|
|
irq_desc[irq].pending_mask = mask;
|
|
spin_unlock_irqrestore(&desc->lock, flags);
|
|
}
|
|
|
|
void move_native_irq(int irq)
|
|
{
|
|
struct irq_desc *desc = irq_desc + irq;
|
|
cpumask_t tmp;
|
|
|
|
if (likely(!desc->move_irq))
|
|
return;
|
|
|
|
/*
|
|
* Paranoia: cpu-local interrupts shouldn't be calling in here anyway.
|
|
*/
|
|
if (CHECK_IRQ_PER_CPU(desc->status)) {
|
|
WARN_ON(1);
|
|
return;
|
|
}
|
|
|
|
desc->move_irq = 0;
|
|
|
|
if (unlikely(cpus_empty(irq_desc[irq].pending_mask)))
|
|
return;
|
|
|
|
if (!desc->chip->set_affinity)
|
|
return;
|
|
|
|
assert_spin_locked(&desc->lock);
|
|
|
|
cpus_and(tmp, irq_desc[irq].pending_mask, cpu_online_map);
|
|
|
|
/*
|
|
* If there was a valid mask to work with, please
|
|
* do the disable, re-program, enable sequence.
|
|
* This is *not* particularly important for level triggered
|
|
* but in a edge trigger case, we might be setting rte
|
|
* when an active trigger is comming in. This could
|
|
* cause some ioapics to mal-function.
|
|
* Being paranoid i guess!
|
|
*/
|
|
if (likely(!cpus_empty(tmp))) {
|
|
if (likely(!(desc->status & IRQ_DISABLED)))
|
|
desc->chip->disable(irq);
|
|
|
|
desc->chip->set_affinity(irq,tmp);
|
|
|
|
if (likely(!(desc->status & IRQ_DISABLED)))
|
|
desc->chip->enable(irq);
|
|
}
|
|
cpus_clear(irq_desc[irq].pending_mask);
|
|
}
|