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authorJiang Liu <jiang.liu@linux.intel.com>2014-11-06 17:20:16 +0300
committerThomas Gleixner <tglx@linutronix.de>2014-11-23 15:01:46 +0300
commit85f08c17de26f117be6ca7aa260d2ec02a2248ba (patch)
tree8a3d7091188c77e8fc6534b3db1394a08bba8128 /include/linux/irq.h
parent0cc01abab6412f3a76256bb57ca58dcb94a6edc7 (diff)
downloadlinux-85f08c17de26f117be6ca7aa260d2ec02a2248ba.tar.xz
genirq: Introduce helper functions to support stacked irq_chip
Now we already support hierarchy irq_data, so introduce several helpers to support stacked irq_chips. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 13ba412ce3a0..0adcbbbf2e87 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -443,6 +443,11 @@ extern void handle_percpu_devid_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_nested_irq(unsigned int irq);
+#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+extern void irq_chip_ack_parent(struct irq_data *data);
+extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
+#endif
+
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
irqreturn_t action_ret);