kernel/irq/debug.h

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