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@@ -14,6 +14,12 @@
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#include <linux/interrupt.h>
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+/* This type is the placeholder for a hardware interrupt number. It has to
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+ * be big enough to enclose whatever representation is used by a given
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+ * platform.
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+ */
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+typedef unsigned long irq_hw_number_t;
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+
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extern unsigned int nr_irq;
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#define NO_IRQ (-1)
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@@ -21,7 +27,8 @@ extern unsigned int nr_irq;
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struct pt_regs;
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extern void do_IRQ(struct pt_regs *regs);
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-/* irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
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+/**
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+ * irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
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* @device: Device node of the device whose interrupt is to be mapped
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* @index: Index of the interrupt to map
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*
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@@ -40,4 +47,32 @@ static inline void irq_dispose_mapping(unsigned int virq)
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return;
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}
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+struct irq_host;
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+
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+/**
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+ * irq_create_mapping - Map a hardware interrupt into linux virq space
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+ * @host: host owning this hardware interrupt or NULL for default host
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+ * @hwirq: hardware irq number in that host space
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+ *
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+ * Only one mapping per hardware interrupt is permitted. Returns a linux
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+ * virq number.
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+ * If the sense/trigger is to be specified, set_irq_type() should be called
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+ * on the number returned from that call.
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+ */
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+extern unsigned int irq_create_mapping(struct irq_host *host,
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+ irq_hw_number_t hwirq);
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+
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+/**
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+ * irq_create_of_mapping - Map a hardware interrupt into linux virq space
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+ * @controller: Device node of the interrupt controller
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+ * @inspec: Interrupt specifier from the device-tree
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+ * @intsize: Size of the interrupt specifier from the device-tree
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+ *
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+ * This function is identical to irq_create_mapping except that it takes
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+ * as input informations straight from the device-tree (typically the results
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+ * of the of_irq_map_*() functions.
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+ */
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+extern unsigned int irq_create_of_mapping(struct device_node *controller,
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+ u32 *intspec, unsigned int intsize);
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+
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#endif /* _ASM_MICROBLAZE_IRQ_H */
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