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Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index cb2e77a..ae9653d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -69,6 +69,8 @@ typedef void (*irq_flow_handler_t)(unsigned int irq,
#define IRQ_MOVE_PCNTXT 0x01000000 /* IRQ migration from process context */
#define IRQ_AFFINITY_SET 0x02000000 /* IRQ affinity was set from userspace*/
#define IRQ_SUSPENDED 0x04000000 /* IRQ has gone through suspend sequence */
+#define IRQ_ONESHOT 0x08000000 /* IRQ is not unmasked after hardirq */
+#define IRQ_NESTED_THREAD 0x10000000 /* IRQ is nested into another, no own handler thread */
#ifdef CONFIG_IRQ_PER_CPU
# define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
@@ -100,6 +102,9 @@ struct msi_desc;
* @set_type: set the flow type (IRQ_TYPE_LEVEL/etc.) of an IRQ
* @set_wake: enable/disable power-management wake-on of an IRQ
*
+ * @bus_lock: function to lock access to slow bus (i2c) chips
+ * @bus_sync_unlock: function to sync and unlock slow bus (i2c) chips
+ *
* @release: release function solely used by UML
* @typename: obsoleted by name, kept as migration helper
*/
@@ -123,6 +128,9 @@ struct irq_chip {
int (*set_type)(unsigned int irq, unsigned int flow_type);
int (*set_wake)(unsigned int irq, unsigned int on);
+ void (*bus_lock)(unsigned int irq);
+ void (*bus_sync_unlock)(unsigned int irq);
+
/* Currently used only by UML, might disappear one day.*/
#ifdef CONFIG_IRQ_RELEASE_METHOD
void (*release)(unsigned int irq, void *dev_id);
@@ -220,13 +228,6 @@ static inline struct irq_desc *move_irq_desc(struct irq_desc *desc, int node)
extern struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node);
/*
- * Migration helpers for obsolete names, they will go away:
- */
-#define hw_interrupt_type irq_chip
-#define no_irq_type no_irq_chip
-typedef struct irq_desc irq_desc_t;
-
-/*
* Pick up the arch-dependent methods:
*/
#include <asm/hw_irq.h>
@@ -289,6 +290,7 @@ extern void handle_edge_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
extern void handle_percpu_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);
/*
* Monolithic do_IRQ implementation.
@@ -379,6 +381,8 @@ set_irq_chained_handler(unsigned int irq,
__set_irq_handler(irq, handle, 1, NULL);
}
+extern void set_irq_nested_thread(unsigned int irq, int nest);
+
extern void set_irq_noprobe(unsigned int irq);
extern void set_irq_probe(unsigned int irq);