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genirq: percpu: allow interrupt type to be set at enable time 

As request_percpu_irq() doesn't allow for a percpu interrupt to have
its type configured (it is generally impossible to configure it on all
CPUs at once), add a 'type' argument to enable_percpu_irq().

This allows some low-level, board specific init code to be switched to
a generic API.

[ tglx: Added WARN_ON argument ]

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Marc Zyngier 2011-09-30 10:48:47 +01:00 committed by Thomas Gleixner
parent 31d9d9b6d8
commit 1e7c5fd294
2 changed files with 15 additions and 2 deletions
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2
include/linux/interrupt.h
View File

@ -223,7 +223,7 @@ extern void disable_irq_nosync(unsigned int irq);
extern void disable_irq(unsigned int irq);
extern void disable_percpu_irq(unsigned int irq);
extern void enable_irq(unsigned int irq);
extern void enable_percpu_irq(unsigned int irq);
extern void enable_percpu_irq(unsigned int irq, unsigned int type);
/* The following three functions are for the core kernel use only. */
#ifdef CONFIG_GENERIC_HARDIRQS

15
kernel/irq/manage.c
View File

@ -1419,7 +1419,7 @@ int request_any_context_irq(unsigned int irq, irq_handler_t handler,
}
EXPORT_SYMBOL_GPL(request_any_context_irq);
void enable_percpu_irq(unsigned int irq)
void enable_percpu_irq(unsigned int irq, unsigned int type)
{
unsigned int cpu = smp_processor_id();
unsigned long flags;
@ -1428,7 +1428,20 @@ void enable_percpu_irq(unsigned int irq)
if (!desc)
return;
type &= IRQ_TYPE_SENSE_MASK;
if (type != IRQ_TYPE_NONE) {
int ret;
ret = __irq_set_trigger(desc, irq, type);
if (ret) {
WARN(1, "failed to set type for IRQ%d\n, irq");
goto out;
}
}
irq_percpu_enable(desc, cpu);
out:
irq_put_desc_unlock(desc, flags);
}