kernel/irq/debug.h

   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