1 files changed, 40 insertions, 11 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 4a728dba02e2..690b238a44d5 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -156,6 +156,10 @@ __request_percpu_irq(unsigned int irq, irq_handler_t handler,
                      unsigned long flags, const char *devname,
                      void __percpu *percpu_dev_id);
 
+extern int __must_check
+request_nmi(unsigned int irq, irq_handler_t handler, unsigned long flags,
+            const char *name, void *dev);
+
 static inline int __must_check
 request_percpu_irq(unsigned int irq, irq_handler_t handler,
                    const char *devname, void __percpu *percpu_dev_id)
@@ -164,9 +168,16 @@ request_percpu_irq(unsigned int irq, irq_handler_t handler,
                                     devname, percpu_dev_id);
 }
 
+extern int __must_check
+request_percpu_nmi(unsigned int irq, irq_handler_t handler,
+                   const char *devname, void __percpu *dev);
+
 extern const void *free_irq(unsigned int, void *);
 extern void free_percpu_irq(unsigned int, void __percpu *);
 
+extern const void *free_nmi(unsigned int irq, void *dev_id);
+extern void free_percpu_nmi(unsigned int irq, void __percpu *percpu_dev_id);
+
 struct device;
 
 extern int __must_check
@@ -217,6 +228,13 @@ extern void enable_percpu_irq(unsigned int irq, unsigned int type);
 extern bool irq_percpu_is_enabled(unsigned int irq);
 extern void irq_wake_thread(unsigned int irq, void *dev_id);
 
+extern void disable_nmi_nosync(unsigned int irq);
+extern void disable_percpu_nmi(unsigned int irq);
+extern void enable_nmi(unsigned int irq);
+extern void enable_percpu_nmi(unsigned int irq, unsigned int type);
+extern int prepare_percpu_nmi(unsigned int irq);
+extern void teardown_percpu_nmi(unsigned int irq);
+
 /* The following three functions are for the core kernel use only. */
 extern void suspend_device_irqs(void);
 extern void resume_device_irqs(void);
@@ -241,20 +259,29 @@ struct irq_affinity_notify {
         void (*release)(struct kref *ref);
 };
 
+#define IRQ_AFFINITY_MAX_SETS  4
+
 /**
  * struct irq_affinity - Description for automatic irq affinity assignements
  * @pre_vectors:        Don't apply affinity to @pre_vectors at beginning of
  *                      the MSI(-X) vector space
  * @post_vectors:       Don't apply affinity to @post_vectors at end of
  *                      the MSI(-X) vector space
- * @nr_sets:            Length of passed in *sets array
- * @sets:               Number of affinitized sets
+ * @nr_sets:            The number of interrupt sets for which affinity
+ *                      spreading is required
+ * @set_size:           Array holding the size of each interrupt set
+ * @calc_sets:          Callback for calculating the number and size
+ *                      of interrupt sets
+ * @priv:               Private data for usage by @calc_sets, usually a
+ *                      pointer to driver/device specific data.
  */
 struct irq_affinity {
-        int     pre_vectors;
-        int     post_vectors;
-        int     nr_sets;
-        int     *sets;
+        unsigned int    pre_vectors;
+        unsigned int    post_vectors;
+        unsigned int    nr_sets;
+        unsigned int    set_size[IRQ_AFFINITY_MAX_SETS];
+        void            (*calc_sets)(struct irq_affinity *, unsigned int nvecs);
+        void            *priv;
 };
 
 /**
@@ -314,9 +341,10 @@ extern int
 irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify);
 
 struct irq_affinity_desc *
-irq_create_affinity_masks(int nvec, const struct irq_affinity *affd);
+irq_create_affinity_masks(unsigned int nvec, struct irq_affinity *affd);
 
-int irq_calc_affinity_vectors(int minvec, int maxvec, const struct irq_affinity *affd);
+unsigned int irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
+                                       const struct irq_affinity *affd);
 
 #else /* CONFIG_SMP */
 
@@ -350,13 +378,14 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
 }
 
 static inline struct irq_affinity_desc *
-irq_create_affinity_masks(int nvec, const struct irq_affinity *affd)
+irq_create_affinity_masks(unsigned int nvec, struct irq_affinity *affd)
 {
         return NULL;
 }
 
-static inline int
-irq_calc_affinity_vectors(int minvec, int maxvec, const struct irq_affinity *affd)
+static inline unsigned int
+irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
+                          const struct irq_affinity *affd)
 {
         return maxvec;
 }