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authorThomas Gleixner <tglx@linutronix.de>2011-02-07 01:08:49 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 12:58:11 +0100
commit4912609f228da4a3d2bfbdf0f31de3d9eab2b7f8 (patch)
tree5e0a134187b877322e730421275dc87a5b797211 /kernel/irq/handle.c
parentd78f8dd36b90626106ce19cb2e6828b0dc39447e (diff)
downloadlinux-stericsson-4912609f228da4a3d2bfbdf0f31de3d9eab2b7f8.tar.gz
genirq: Implement handle_irq_event()
Core code replacement for the ugly camel case. It contains all the code which is shared in all handlers. clear status flags set INPROGRESS flag unlock call action chain note_interrupt lock clr INPROGRESS flag Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/handle.c')
-rw-r--r--kernel/irq/handle.c47
1 files changed, 39 insertions, 8 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index cdd6fbbe771c..4ef059478ebf 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -51,14 +51,7 @@ static void warn_no_thread(unsigned int irq, struct irqaction *action)
"but no thread function available.", irq, action->name);
}
-/**
- * handle_IRQ_event - irq action chain handler
- * @irq: the interrupt number
- * @action: the interrupt action chain for this irq
- *
- * Handles the action chain of an irq event
- */
-irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
+static irqreturn_t __handle_irq_event(unsigned int irq, struct irqaction *action)
{
irqreturn_t ret, retval = IRQ_NONE;
unsigned int status = 0;
@@ -120,3 +113,41 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
return retval;
}
+
+irqreturn_t
+handle_irq_event_percpu(struct irq_desc *desc, struct irqaction *action)
+{
+ irqreturn_t ret = __handle_irq_event(desc->irq_data.irq, action);
+
+ if (!noirqdebug)
+ note_interrupt(desc->irq_data.irq, desc, ret);
+ return ret;
+}
+
+irqreturn_t handle_irq_event(struct irq_desc *desc)
+{
+ struct irqaction *action = desc->action;
+ irqreturn_t ret;
+
+ desc->status &= ~IRQ_PENDING;
+ desc->status |= IRQ_INPROGRESS;
+ raw_spin_unlock(&desc->lock);
+
+ ret = handle_irq_event_percpu(desc, action);
+
+ raw_spin_lock(&desc->lock);
+ desc->status &= ~IRQ_INPROGRESS;
+ return ret;
+}
+
+/**
+ * handle_IRQ_event - irq action chain handler
+ * @irq: the interrupt number
+ * @action: the interrupt action chain for this irq
+ *
+ * Handles the action chain of an irq event
+ */
+irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
+{
+ return __handle_irq_event(irq, action);
+}