irq: add irq_domain translation infrastructure

[pandora-kernel.git] / include / linux / irq.h

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 5f69504..87a06f3 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -108,14 +108,18 @@ enum {
 };
 
 struct msi_desc;
+struct irq_domain;
 
 /**
  * struct irq_data - per irq and irq chip data passed down to chip functions
  * @irq:               interrupt number
+ * @hwirq:             hardware interrupt number, local to the interrupt domain
  * @node:              node index useful for balancing
  * @state_use_accessors: status information for irq chip functions.
  *                     Use accessor functions to deal with it
  * @chip:              low level interrupt hardware access
+ * @domain:            Interrupt translation domain; responsible for mapping
+ *                     between hwirq number and linux irq number.
  * @handler_data:      per-IRQ data for the irq_chip methods
  * @chip_data:         platform-specific per-chip private data for the chip
  *                     methods, to allow shared chip implementations
@@ -128,9 +132,11 @@ struct msi_desc;
  */
 struct irq_data {
        unsigned int            irq;
+       unsigned long           hwirq;
        unsigned int            node;
        unsigned int            state_use_accessors;
        struct irq_chip         *chip;
+       struct irq_domain       *domain;
        void                    *handler_data;
        void                    *chip_data;
        struct msi_desc         *msi_desc;