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 #define NR_IPI  5
   9
  10 typedef struct {
  11         unsigned int __softirq_pending;
  12 #ifdef CONFIG_LOCAL_TIMERS
  13         unsigned int local_timer_irqs;
  14 #endif
  15 #ifdef CONFIG_SMP
  16         unsigned int ipi_irqs[NR_IPI];
  17 #endif
  18 } ____cacheline_aligned irq_cpustat_t;
  19
  20 #include <linux/irq_cpustat.h>  /* Standard mappings for irq_cpustat_t above */
  21
  22 #define __inc_irq_stat(cpu, member)     __IRQ_STAT(cpu, member)++
  23 #define __get_irq_stat(cpu, member)     __IRQ_STAT(cpu, member)
  24
  25 #ifdef CONFIG_SMP
  26 u64 smp_irq_stat_cpu(unsigned int cpu);
  27 #else
  28 #define smp_irq_stat_cpu(cpu)   0
  29 #endif
  30
  31 #define arch_irq_stat_cpu       smp_irq_stat_cpu
  32
  33 #if NR_IRQS > 512
  34 #define HARDIRQ_BITS    10
  35 #elif NR_IRQS > 256
  36 #define HARDIRQ_BITS    9
  37 #else
  38 #define HARDIRQ_BITS    8
  39 #endif
  40
  41 /*
  42  * The hardirq mask has to be large enough to have space
  43  * for potentially all IRQ sources in the system nesting
  44  * on a single CPU:
  45  */
  46 #if (1 << HARDIRQ_BITS) < NR_IRQS
  47 # error HARDIRQ_BITS is too low!
  48 #endif
  49
  50 #define __ARCH_IRQ_EXIT_IRQS_DISABLED   1
  51
  52 #endif /* __ASM_HARDIRQ_H */