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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 22:23:40 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-15 22:23:40 -0400
commit5f6fb45466b2273ffb91c9cf209f164f666c33b1 (patch)
tree2b19f24b678ae379be1b19338c3095c1f76ed41d /kernel/irq/debug.h
parent3904afb41d4316f7a2968c615d689e19149a4f84 (diff)
parentc0185808eb85139f45dbfd0de66963c498d0c4db (diff)
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (116 commits) x86: Enable forced interrupt threading support x86: Mark low level interrupts IRQF_NO_THREAD x86: Use generic show_interrupts x86: ioapic: Avoid redundant lookup of irq_cfg x86: ioapic: Use new move_irq functions x86: Use the proper accessors in fixup_irqs() x86: ioapic: Use irq_data->state x86: ioapic: Simplify irq chip and handler setup x86: Cleanup the genirq name space genirq: Add chip flag to force mask on suspend genirq: Add desc->irq_data accessor genirq: Add comments to Kconfig switches genirq: Fixup fasteoi handler for oneshot mode genirq: Provide forced interrupt threading sched: Switch wait_task_inactive to schedule_hrtimeout() genirq: Add IRQF_NO_THREAD genirq: Allow shared oneshot interrupts genirq: Prepare the handling of shared oneshot interrupts genirq: Make warning in handle_percpu_event useful x86: ioapic: Move trigger defines to io_apic.h ... Fix up trivial(?) conflicts in arch/x86/pci/xen.c due to genirq name space changes clashing with the Xen cleanups. The set_irq_msi() had moved to xen_bind_pirq_msi_to_irq().
Diffstat (limited to 'kernel/irq/debug.h')
-rw-r--r--kernel/irq/debug.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h
new file mode 100644
index 000000000000..d1a33b7fa61d
--- /dev/null
+++ b/kernel/irq/debug.h
@@ -0,0 +1,40 @@
1/*
2 * Debugging printout:
3 */
4
5#include <linux/kallsyms.h>
6
7#define P(f) if (desc->status & f) printk("%14s set\n", #f)
8#define PS(f) if (desc->istate & f) printk("%14s set\n", #f)
9
10static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
11{
12 printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
13 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
14 printk("->handle_irq(): %p, ", desc->handle_irq);
15 print_symbol("%s\n", (unsigned long)desc->handle_irq);
16 printk("->irq_data.chip(): %p, ", desc->irq_data.chip);
17 print_symbol("%s\n", (unsigned long)desc->irq_data.chip);
18 printk("->action(): %p\n", desc->action);
19 if (desc->action) {
20 printk("->action->handler(): %p, ", desc->action->handler);
21 print_symbol("%s\n", (unsigned long)desc->action->handler);
22 }
23
24 P(IRQ_LEVEL);
25 P(IRQ_PER_CPU);
26 P(IRQ_NOPROBE);
27 P(IRQ_NOREQUEST);
28 P(IRQ_NOAUTOEN);
29
30 PS(IRQS_AUTODETECT);
31 PS(IRQS_INPROGRESS);
32 PS(IRQS_REPLAY);
33 PS(IRQS_WAITING);
34 PS(IRQS_DISABLED);
35 PS(IRQS_PENDING);
36 PS(IRQS_MASKED);
37}
38
39#undef P
40#undef PS