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genirq: Mirror IRQ_PER_CPU and IRQ_NO_BALANCING in irq_data.state

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That's the right data structure to look at for arch code.

Accessor functions are provided.

	 irqd_is_per_cpu(irqdata);
	 irqd_can_balance(irqdata);

Coders who access them directly will be tracked down and slapped with
stinking trouts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-02-08 17:11:03 +01:00
parent 1ce6068dac
commit a005677b3d
7 changed files with 84 additions and 15 deletions
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16
include/linux/irq.h
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@@ -132,10 +132,14 @@ struct irq_data {
* Bit masks for irq_data.state
*
* IRQD_SETAFFINITY_PENDING - Affinity setting is pending
* IRQD_NO_BALANCING - Balancing disabled for this IRQ
* IRQD_PER_CPU - Interrupt is per cpu
*/
enum {
/* Bit 0 - 7 reserved for TYPE will use later */
IRQD_SETAFFINITY_PENDING = (1 << 8),
IRQD_SETAFFINITY_PENDING = (1 << 8),
IRQD_NO_BALANCING = (1 << 10),
IRQD_PER_CPU = (1 << 11),
};
static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
@@ -143,6 +147,16 @@ static inline bool irqd_is_setaffinity_pending(struct irq_data *d)
return d->state_use_accessors & IRQD_SETAFFINITY_PENDING;
}
static inline bool irqd_is_per_cpu(struct irq_data *d)
{
return d->state_use_accessors & IRQD_PER_CPU;
}
static inline bool irqd_can_balance(struct irq_data *d)
{
return !(d->state_use_accessors & (IRQD_PER_CPU | IRQD_NO_BALANCING));
}
/**
* struct irq_chip - hardware interrupt chip descriptor
*