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