kernel/irq/debug.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Debugging printout:
0004  */
0005
0006 #define ___P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f)
0007 #define ___PS(f) if (desc->istate & f) printk("%14s set\n", #f)
0008 /* FIXME */
0009 #define ___PD(f) do { } while (0)
0010
0011 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
0012 {
0013     static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
0014
0015     if (!__ratelimit(&ratelimit))
0016         return;
0017
0018     printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
0019         irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
0020     printk("->handle_irq():  %p, %pS\n",
0021         desc->handle_irq, desc->handle_irq);
0022     printk("->irq_data.chip(): %p, %pS\n",
0023         desc->irq_data.chip, desc->irq_data.chip);
0024     printk("->action(): %p\n", desc->action);
0025     if (desc->action) {
0026         printk("->action->handler(): %p, %pS\n",
0027             desc->action->handler, desc->action->handler);
0028     }
0029
0030     ___P(IRQ_LEVEL);
0031     ___P(IRQ_PER_CPU);
0032     ___P(IRQ_NOPROBE);
0033     ___P(IRQ_NOREQUEST);
0034     ___P(IRQ_NOTHREAD);
0035     ___P(IRQ_NOAUTOEN);
0036
0037     ___PS(IRQS_AUTODETECT);
0038     ___PS(IRQS_REPLAY);
0039     ___PS(IRQS_WAITING);
0040     ___PS(IRQS_PENDING);
0041
0042     ___PD(IRQS_INPROGRESS);
0043     ___PD(IRQS_DISABLED);
0044     ___PD(IRQS_MASKED);
0045 }
0046
0047 #undef ___P
0048 #undef ___PS
0049 #undef ___PD