xref: /openbmc/linux/kernel/irq/debug.h (revision 842ed298)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Debugging printout:
4  */
5 
6 #define ___P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f)
7 #define ___PS(f) if (desc->istate & f) printk("%14s set\n", #f)
8 /* FIXME */
9 #define ___PD(f) do { } while (0)
10 
11 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
12 {
13 	static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
14 
15 	if (!__ratelimit(&ratelimit))
16 		return;
17 
18 	printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
19 		irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
20 	printk("->handle_irq():  %p, %pS\n",
21 		desc->handle_irq, desc->handle_irq);
22 	printk("->irq_data.chip(): %p, %pS\n",
23 		desc->irq_data.chip, desc->irq_data.chip);
24 	printk("->action(): %p\n", desc->action);
25 	if (desc->action) {
26 		printk("->action->handler(): %p, %pS\n",
27 			desc->action->handler, desc->action->handler);
28 	}
29 
30 	___P(IRQ_LEVEL);
31 	___P(IRQ_PER_CPU);
32 	___P(IRQ_NOPROBE);
33 	___P(IRQ_NOREQUEST);
34 	___P(IRQ_NOTHREAD);
35 	___P(IRQ_NOAUTOEN);
36 
37 	___PS(IRQS_AUTODETECT);
38 	___PS(IRQS_REPLAY);
39 	___PS(IRQS_WAITING);
40 	___PS(IRQS_PENDING);
41 
42 	___PD(IRQS_INPROGRESS);
43 	___PD(IRQS_DISABLED);
44 	___PD(IRQS_MASKED);
45 }
46 
47 #undef ___P
48 #undef ___PS
49 #undef ___PD
50