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authorGrant Likely <grant.likely@linaro.org>2013-05-29 06:10:52 +0400
committerThomas Gleixner <tglx@linutronix.de>2013-05-29 12:57:11 +0400
commite8bd834f73714378ef110a64287db1b77033c8da (patch)
tree344493bc19c638aca611e3b5c7e44e234288685a /include/linux/irq.h
parent088f40b7b027dad6519712ff224a5798dd62a204 (diff)
downloadlinux-e8bd834f73714378ef110a64287db1b77033c8da.tar.xz
genirq: irqchip: Add mask to block out invalid irqs
Some controllers have irqs that aren't wired up and must never be used. For the generic chip attached to an irq_domain this provides a mask that can be used to block out particular irqs so that they never get mapped. Signed-off-by: Grant Likely <grant.likely@linaro.org> Link: http://lkml.kernel.org/r/1369793454-19197-2-git-send-email-grant.likely@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index af7052c6a45c..298a9b9ce675 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -679,6 +679,7 @@ struct irq_chip_type {
* @num_ct: Number of available irq_chip_type instances (usually 1)
* @private: Private data for non generic chip callbacks
* @installed: bitfield to denote installed interrupts
+ * @unused: bitfield to denote unused interrupts
* @domain: irq domain pointer
* @list: List head for keeping track of instances
* @chip_types: Array of interrupt irq_chip_types
@@ -702,6 +703,7 @@ struct irq_chip_generic {
unsigned int num_ct;
void *private;
unsigned long installed;
+ unsigned long unused;
struct irq_domain *domain;
struct list_head list;
struct irq_chip_type chip_types[0];