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Merge branch 'linus' into irq/core

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Reason: Get upstream fixes integrated before further modifications.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2012-03-13 16:34:48 +01:00
parent 5234ffb9f7 fde7d9049e
commit df8d291f28
581 changed files with 4067 additions and 2424 deletions
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42
kernel/irq/chip.c
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@@ -156,19 +156,22 @@ static void irq_state_set_masked(struct irq_desc *desc)
irqd_set(&desc->irq_data, IRQD_IRQ_MASKED);
}
int irq_startup(struct irq_desc *desc)
int irq_startup(struct irq_desc *desc, bool resend)
{
int ret = 0;
irq_state_clr_disabled(desc);
desc->depth = 0;
if (desc->irq_data.chip->irq_startup) {
int ret = desc->irq_data.chip->irq_startup(&desc->irq_data);
ret = desc->irq_data.chip->irq_startup(&desc->irq_data);
irq_state_clr_masked(desc);
return ret;
} else {
irq_enable(desc);
}
irq_enable(desc);
return 0;
if (resend)
check_irq_resend(desc, desc->irq_data.irq);
return ret;
}
void irq_shutdown(struct irq_desc *desc)
@@ -329,6 +332,24 @@ out_unlock:
}
EXPORT_SYMBOL_GPL(handle_simple_irq);
/*
* Called unconditionally from handle_level_irq() and only for oneshot
* interrupts from handle_fasteoi_irq()
*/
static void cond_unmask_irq(struct irq_desc *desc)
{
/*
* We need to unmask in the following cases:
* - Standard level irq (IRQF_ONESHOT is not set)
* - Oneshot irq which did not wake the thread (caused by a
* spurious interrupt or a primary handler handling it
* completely).
*/
if (!irqd_irq_disabled(&desc->irq_data) &&
irqd_irq_masked(&desc->irq_data) && !desc->threads_oneshot)
unmask_irq(desc);
}
/**
* handle_level_irq - Level type irq handler
* @irq: the interrupt number
@@ -361,8 +382,8 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
handle_irq_event(desc);
if (!irqd_irq_disabled(&desc->irq_data) && !(desc->istate & IRQS_ONESHOT))
unmask_irq(desc);
cond_unmask_irq(desc);
out_unlock:
raw_spin_unlock(&desc->lock);
}
@@ -416,6 +437,9 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
preflow_handler(desc);
handle_irq_event(desc);
if (desc->istate & IRQS_ONESHOT)
cond_unmask_irq(desc);
out_eoi:
desc->irq_data.chip->irq_eoi(&desc->irq_data);
out_unlock:
@@ -624,7 +648,7 @@ __irq_set_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
irq_settings_set_noprobe(desc);
irq_settings_set_norequest(desc);
irq_settings_set_nothread(desc);
irq_startup(desc);
irq_startup(desc, true);
}
out:
irq_put_desc_busunlock(desc, flags);