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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-02-15 10:33:57 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-19 12:58:24 +0100 |
| commit | 77694b408abb8f92195ad5ed6ce5492f1d794c77 (patch) | |
| tree | a0f7e81a0a155523f69146cd560cc2f49543a99e /kernel | |
| parent | 781295762defc709a609efc01d8bb065276cd9a2 (diff) | |
| download | linux-stable-77694b408abb8f92195ad5ed6ce5492f1d794c77.tar.gz linux-stable-77694b408abb8f92195ad5ed6ce5492f1d794c77.tar.bz2 linux-stable-77694b408abb8f92195ad5ed6ce5492f1d794c77.zip | |
genirq; Add fasteoi irq_chip quirk
Some chips want irq_eoi() only called when an interrupt is actually
handled. So they have checks for INPROGRESS and DISABLED in their
irq_eoi callbacks. Add a chip flag, which allows to handle that in the
generic code. No impact on the fastpath.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/chip.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index 08be5d182be3..1d3e25e68b0c 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -515,9 +515,16 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc) } preflow_handler(desc); handle_irq_event(desc); -out: + +out_eoi: desc->irq_data.chip->irq_eoi(&desc->irq_data); +out_unlock: raw_spin_unlock(&desc->lock); + return; +out: + if (!(desc->irq_data.chip->flags & IRQCHIP_EOI_IF_HANDLED)) + goto out_eoi; + goto out_unlock; } /** |