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-rw-r--r--kernel/irq/internals.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 46feba63026..08a849a2244 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -4,6 +4,12 @@
extern int noirqdebug;
+/* Set default functions for irq_chip structures: */
+extern void irq_chip_set_defaults(struct irq_chip *chip);
+
+/* Set default handler: */
+extern void compat_irq_chip_set_default_handler(struct irq_desc *desc);
+
#ifdef CONFIG_PROC_FS
extern void register_irq_proc(unsigned int irq);
extern void register_handler_proc(unsigned int irq, struct irqaction *action);
@@ -16,3 +22,43 @@ static inline void unregister_handler_proc(unsigned int irq,
struct irqaction *action) { }
#endif
+/*
+ * Debugging printout:
+ */
+
+#include <linux/kallsyms.h>
+
+#define P(f) if (desc->status & f) printk("%14s set\n", #f)
+
+static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
+{
+ printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
+ irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
+ printk("->handle_irq(): %p, ", desc->handle_irq);
+ print_symbol("%s\n", (unsigned long)desc->handle_irq);
+ printk("->chip(): %p, ", desc->chip);
+ print_symbol("%s\n", (unsigned long)desc->chip);
+ printk("->action(): %p\n", desc->action);
+ if (desc->action) {
+ printk("->action->handler(): %p, ", desc->action->handler);
+ print_symbol("%s\n", (unsigned long)desc->action->handler);
+ }
+
+ P(IRQ_INPROGRESS);
+ P(IRQ_DISABLED);
+ P(IRQ_PENDING);
+ P(IRQ_REPLAY);
+ P(IRQ_AUTODETECT);
+ P(IRQ_WAITING);
+ P(IRQ_LEVEL);
+ P(IRQ_MASKED);
+#ifdef CONFIG_IRQ_PER_CPU
+ P(IRQ_PER_CPU);
+#endif
+ P(IRQ_NOPROBE);
+ P(IRQ_NOREQUEST);
+ P(IRQ_NOAUTOEN);
+}
+
+#undef P
+