x86: remove irqbalance in kernel for 32 bit

[linux-2.6-omap-h63xx.git] / include / linux / irq.h

diff --git a/include/linux/irq.h b/include/linux/irq.h
index cbf471aee1cee8a69680f0ae1d449527749d4b3a..2445d2b3d5dc21638c8c57de6ff6f54cdb8a0bb0 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -128,6 +128,7 @@ struct irq_chip {
 };
 
 struct timer_rand_state;
+struct irq_2_iommu;
 /**
  * struct irq_desc - interrupt descriptor
  *
@@ -162,6 +163,9 @@ struct irq_desc {
        unsigned int            *kstat_irqs;
 #else
        unsigned int            kstat_irqs[NR_CPUS];
+#endif
+#if defined(CONFIG_INTR_REMAP) && defined(CONFIG_HAVE_SPARSE_IRQ)
+       struct irq_2_iommu      *irq_2_iommu;
 #endif
        irq_flow_handler_t      handle_irq;
        struct irq_chip         *chip;
@@ -181,7 +185,7 @@ struct irq_desc {
        cpumask_t               affinity;
        unsigned int            cpu;
 #endif
-#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
+#ifdef CONFIG_GENERIC_PENDING_IRQ
        cpumask_t               pending_mask;
 #endif
 #ifdef CONFIG_PROC_FS
@@ -191,10 +195,30 @@ struct irq_desc {
 } ____cacheline_internodealigned_in_smp;
 
 extern struct irq_desc *irq_to_desc(unsigned int irq);
+extern struct irq_desc *irq_to_desc_alloc(unsigned int irq);
+
+#ifndef CONFIG_HAVE_SPARSE_IRQ
+
 #ifndef CONFIG_HAVE_DYN_ARRAY
 /* could be removed if we get rid of all irq_desc reference */
 extern struct irq_desc irq_desc[NR_IRQS];
+#else
+extern struct irq_desc *irq_desc;
+#endif
+
+#ifdef CONFIG_GENERIC_HARDIRQS
+#define for_each_irq_desc(irq, desc)           \
+       for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc = &irq_desc[irq])
 #endif
+
+#else
+
+extern struct irq_desc *sparse_irqs;
+#define for_each_irq_desc(irqX, desc)          \
+       for (desc = sparse_irqs, irqX = desc->irq; desc; desc = desc->next, irqX = desc ? desc->irq : -1U)
+
+#endif
+
 #define kstat_irqs_this_cpu(DESC) \
        ((DESC)->kstat_irqs[smp_processor_id()])
 
@@ -217,13 +241,13 @@ extern int setup_irq(unsigned int irq, struct irqaction *new);
 
 #ifdef CONFIG_SMP
 
-#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
+#ifdef CONFIG_GENERIC_PENDING_IRQ
 
 void set_pending_irq(unsigned int irq, cpumask_t mask);
 void move_native_irq(int irq);
 void move_masked_irq(int irq);
 
-#else /* CONFIG_GENERIC_PENDING_IRQ || CONFIG_IRQBALANCE */
+#else /* CONFIG_GENERIC_PENDING_IRQ */
 
 static inline void move_irq(int irq)
 {
@@ -250,14 +274,6 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask)
 
 #endif /* CONFIG_SMP */
 
-#ifdef CONFIG_IRQBALANCE
-extern void set_balance_irq_affinity(unsigned int irq, cpumask_t mask);
-#else
-static inline void set_balance_irq_affinity(unsigned int irq, cpumask_t mask)
-{
-}
-#endif
-
 extern int no_irq_affinity;
 
 static inline int irq_balancing_disabled(unsigned int irq)
@@ -295,10 +311,8 @@ extern unsigned int __do_IRQ(unsigned int irq);
  * irqchip-style controller then we call the ->handle_irq() handler,
  * and it calls __do_IRQ() if it's attached to an irqtype-style controller.
  */
-static inline void generic_handle_irq(unsigned int irq)
+static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc)
 {
-       struct irq_desc *desc = irq_to_desc(irq);
-
 #ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ
        desc->handle_irq(irq, desc);
 #else
@@ -309,6 +323,11 @@ static inline void generic_handle_irq(unsigned int irq)
 #endif
 }
 
+static inline void generic_handle_irq(unsigned int irq)
+{
+       generic_handle_irq_desc(irq, irq_to_desc(irq));
+}
+
 /* Handling of unhandled and spurious interrupts: */
 extern void note_interrupt(unsigned int irq, struct irq_desc *desc,
                           int action_ret);
@@ -372,6 +391,7 @@ extern void set_irq_noprobe(unsigned int irq);
 extern void set_irq_probe(unsigned int irq);
 
 /* Handle dynamic irq creation and destruction */
+extern unsigned int create_irq_nr(unsigned int irq_want);
 extern int create_irq(void);
 extern void destroy_irq(unsigned int irq);