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genirq: Move IRQ_ONESHOT to core

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No users outside of core.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-07 21:02:10 +01:00
commit 3d67baec7f
4 changed files with 7 additions and 6 deletions
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1
include/linux/irq.h
View file

@ -71,7 +71,6 @@ typedef void (*irq_flow_handler_t)(unsigned int irq,
#define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */ #define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */
#define IRQ_AFFINITY_SET 0x02000000 /* IRQ affinity was set from userspace*/ #define IRQ_AFFINITY_SET 0x02000000 /* IRQ affinity was set from userspace*/
#define IRQ_SUSPENDED 0x04000000 /* IRQ has gone through suspend sequence */ #define IRQ_SUSPENDED 0x04000000 /* IRQ has gone through suspend sequence */
#define IRQ_ONESHOT 0x08000000 /* IRQ is not unmasked after hardirq */
#define IRQ_NESTED_THREAD 0x10000000 /* IRQ is nested into another, no own handler thread */ #define IRQ_NESTED_THREAD 0x10000000 /* IRQ is nested into another, no own handler thread */
#define IRQF_MODIFY_MASK \ #define IRQF_MODIFY_MASK \

2
kernel/irq/chip.c
View file

@ -472,7 +472,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
handle_irq_event(desc); handle_irq_event(desc);
if (!(desc->status & (IRQ_DISABLED | IRQ_ONESHOT))) if (!(desc->status & IRQ_DISABLED) && !(desc->istate & IRQS_ONESHOT))
unmask_irq(desc); unmask_irq(desc);
out_unlock: out_unlock:
raw_spin_unlock(&desc->lock); raw_spin_unlock(&desc->lock);

2
kernel/irq/internals.h
View file

@ -42,12 +42,14 @@ enum {
* detection * detection
* IRQS_POLL_INPROGRESS - polling in progress * IRQS_POLL_INPROGRESS - polling in progress
* IRQS_INPROGRESS - Interrupt in progress * IRQS_INPROGRESS - Interrupt in progress
* IRQS_ONESHOT - irq is not unmasked in primary handler
*/ */
enum { enum {
IRQS_AUTODETECT = 0x00000001, IRQS_AUTODETECT = 0x00000001,
IRQS_SPURIOUS_DISABLED = 0x00000002, IRQS_SPURIOUS_DISABLED = 0x00000002,
IRQS_POLL_INPROGRESS = 0x00000008, IRQS_POLL_INPROGRESS = 0x00000008,
IRQS_INPROGRESS = 0x00000010, IRQS_INPROGRESS = 0x00000010,
IRQS_ONESHOT = 0x00000020,
}; };
#define irq_data_to_desc(data) container_of(data, struct irq_desc, irq_data) #define irq_data_to_desc(data) container_of(data, struct irq_desc, irq_data)

8
kernel/irq/manage.c
View file

@ -697,7 +697,7 @@ static int irq_thread(void *data)
}; };
struct irqaction *action = data; struct irqaction *action = data;
struct irq_desc *desc = irq_to_desc(action->irq); struct irq_desc *desc = irq_to_desc(action->irq);
int wake, oneshot = desc->status & IRQ_ONESHOT; int wake, oneshot = desc->istate & IRQS_ONESHOT;
sched_setscheduler(current, SCHED_FIFO, &param); sched_setscheduler(current, SCHED_FIFO, &param);
current->irqaction = action; current->irqaction = action;
@ -897,12 +897,12 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
desc->status |= IRQ_PER_CPU; desc->status |= IRQ_PER_CPU;
#endif #endif
desc->status &= ~(IRQ_WAITING | IRQ_ONESHOT); desc->status &= ~IRQ_WAITING;
desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \ desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
IRQS_INPROGRESS); IRQS_INPROGRESS | IRQS_ONESHOT);
if (new->flags & IRQF_ONESHOT) if (new->flags & IRQF_ONESHOT)
desc->status |= IRQ_ONESHOT; desc->istate |= IRQS_ONESHOT;
if (!(desc->status & IRQ_NOAUTOEN)) if (!(desc->status & IRQ_NOAUTOEN))
irq_startup(desc); irq_startup(desc);