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authorThomas Gleixner <tglx@linutronix.de>2011-02-15 10:33:57 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-19 12:58:24 +0100
commit77694b408abb8f92195ad5ed6ce5492f1d794c77 (patch)
treea0f7e81a0a155523f69146cd560cc2f49543a99e /include/linux/irq.h
parent781295762defc709a609efc01d8bb065276cd9a2 (diff)
downloadop-kernel-dev-77694b408abb8f92195ad5ed6ce5492f1d794c77.zip
op-kernel-dev-77694b408abb8f92195ad5ed6ce5492f1d794c77.tar.gz
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 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 3639097..ea2970c 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -328,10 +328,12 @@ struct irq_chip {
/*
* irq_chip specific flags
*
- * IRQCHIP_SET_TYPE_MASKED: Mask before calling chip.irq_set_type()
+ * IRQCHIP_SET_TYPE_MASKED: Mask before calling chip.irq_set_type()
+ * IRQCHIP_EOI_IF_HANDLED: Only issue irq_eoi() when irq was handled
*/
enum {
IRQCHIP_SET_TYPE_MASKED = (1 << 0),
+ IRQCHIP_EOI_IF_HANDLED = (1 << 1),
};
/* This include will go away once we isolated irq_desc usage to core code */
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