arch/arm/include/asm/hardirq.h

   1 #ifndef __ASM_HARDIRQ_H
   2 #define __ASM_HARDIRQ_H
   3
   4 #include <linux/cache.h>
   5 #include <linux/threads.h>
   6 #include <asm/irq.h>
   7
   8 typedef struct {
   9         unsigned int __softirq_pending;
  10         unsigned int local_timer_irqs;
  11 } ____cacheline_aligned irq_cpustat_t;
  12
  13 #include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
  14
  15 #if NR_IRQS > 512
  16 #define HARDIRQ_BITS    10
  17 #elif NR_IRQS > 256
  18 #define HARDIRQ_BITS    9
  19 #else
  20 #define HARDIRQ_BITS    8
  21 #endif
  22
  23 /*
  24  * The hardirq mask has to be large enough to have space
  25  * for potentially all IRQ sources in the system nesting
  26  * on a single CPU:
  27  */
  28 #if (1 << HARDIRQ_BITS) < NR_IRQS
  29 # error HARDIRQ_BITS is too low!
  30 #endif
  31
  32 #define __ARCH_IRQ_EXIT_IRQS_DISABLED   1
  33
  34 #endif /* __ASM_HARDIRQ_H */