#include <linux/spinlock.h>
#include <linux/cpumask.h>
#include <linux/irqreturn.h>
+#include <linux/irqnr.h>
#include <linux/errno.h>
#include <asm/irq.h>
const char *typename;
};
-struct timer_rand_state;
/**
* struct irq_desc - interrupt descriptor
*
*/
struct irq_desc {
unsigned int irq;
-#ifdef CONFIG_HAVE_SPARSE_IRQ
- struct irq_desc *next;
- struct timer_rand_state *timer_rand_state;
-#endif
-#ifdef CONFIG_HAVE_DYN_ARRAY
- unsigned int *kstat_irqs;
-#else
- unsigned int kstat_irqs[NR_CPUS];
-#endif
irq_flow_handler_t handle_irq;
struct irq_chip *chip;
struct msi_desc *msi_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
const char *name;
} ____cacheline_internodealigned_in_smp;
-extern struct irq_desc *irq_to_desc(unsigned int irq);
-extern struct irq_desc *__irq_to_desc(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 && irqX != -1U; desc = desc->next, irqX = desc ? desc->irq : -1U)
-
-#endif
-#define kstat_irqs_this_cpu(DESC) \
- ((DESC)->kstat_irqs[smp_processor_id()])
+static inline struct irq_desc *irq_to_desc(unsigned int irq)
+{
+ return (irq < nr_irqs) ? irq_desc + irq : NULL;
+}
/*
* Migration helpers for obsolete names, they will go away:
#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)
{
#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)
* 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
#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);
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);