sky2: handle descriptor errors

[powerpc.git] / kernel / irq / internals.h

diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index 2ba8ae3..08a849a 100644 (file)
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -22,3 +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
+