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genirq: Add irq disabled flag to irq_data state

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Some irq_chip implementation require to know the disabled state of the
interrupt in certain callbacks. Add a state flag and accessor to
irq_data.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-03-27 11:02:49 +02:00
parent d72274e589
commit 801a0e9ae3
3 changed files with 12 additions and 2 deletions
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8
include/linux/irq.h
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@@ -174,6 +174,8 @@ struct irq_data {
* from suspend
* IRDQ_MOVE_PCNTXT - Interrupt can be moved in process
* context
* IRQD_IRQ_DISABLED - Some chip function need to know the
* disabled state.
*/
enum {
IRQD_TRIGGER_MASK = 0xf,
@@ -184,6 +186,7 @@ enum {
IRQD_LEVEL = (1 << 13),
IRQD_WAKEUP_STATE = (1 << 14),
IRQD_MOVE_PCNTXT = (1 << 15),
IRQD_IRQ_DISABLED = (1 << 16),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -235,6 +238,11 @@ static inline bool irqd_can_move_in_process_context(struct irq_data *d)
return d->state_use_accessors & IRQD_MOVE_PCNTXT;
}
static inline bool irqd_irq_disabled(struct irq_data *d)
{
return d->state_use_accessors & IRQD_IRQ_DISABLED;
}
/**
* struct irq_chip - hardware interrupt chip descriptor
*