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avr32: allow system timer to share interrupt to make OProfile work 

The following patch allows the avr32_comparator interrupt to be shared.
This is necessary as the avr32 oprofile driver shares the irq group 0
with the timer.

To make OProfile actually work on AVR32, a small patch for oprofiled is
also needed (posted to the oprofile mailing list).

Signed-off-by: Nikolaus Voss <n.voss@weinmann.de>
[haavard.skinnemoen@atmel.com: set IRQF_SHARED unconditionally]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This commit is contained in:
Voss, Nikolaus 2008-07-18 14:44:48 +02:00 committed by Haavard Skinnemoen
parent db6ea2c17c
commit 56d3eef2b4
1 changed files with 5 additions and 1 deletions
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6
arch/avr32/kernel/time.c
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@ -43,6 +43,9 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
{
struct clock_event_device *evdev = dev_id;
if (unlikely(!(intc_get_pending(0) & 1)))
return IRQ_NONE;
/*
* Disable the interrupt until the clockevent subsystem
* reprograms it.
@ -55,7 +58,8 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
.flags = IRQF_TIMER | IRQF_DISABLED,
/* Oprofile uses the same irq as the timer, so allow it to be shared */
.flags = IRQF_TIMER | IRQF_DISABLED | IRQF_SHARED,
.name = "avr32_comparator",
};