LXR linux/arch/s390/include/asm/irq.h

   1#ifndef _ASM_IRQ_H
   2#define _ASM_IRQ_H
   3
   4#include <linux/hardirq.h>
   5#include <linux/percpu.h>
   6#include <linux/cache.h>
   7#include <linux/types.h>
   8
   9enum interruption_main_class {
  10        EXTERNAL_INTERRUPT,
  11        IO_INTERRUPT,
  12        NR_IRQS
  13};
  14
  15enum interruption_class {
  16        IRQEXT_CLK,
  17        IRQEXT_EXC,
  18        IRQEXT_EMS,
  19        IRQEXT_TMR,
  20        IRQEXT_TLA,
  21        IRQEXT_PFL,
  22        IRQEXT_DSD,
  23        IRQEXT_VRT,
  24        IRQEXT_SCP,
  25        IRQEXT_IUC,
  26        IRQEXT_CMS,
  27        IRQEXT_CMC,
  28        IRQEXT_CMR,
  29        IRQIO_CIO,
  30        IRQIO_QAI,
  31        IRQIO_DAS,
  32        IRQIO_C15,
  33        IRQIO_C70,
  34        IRQIO_TAP,
  35        IRQIO_VMR,
  36        IRQIO_LCS,
  37        IRQIO_CLW,
  38        IRQIO_CTC,
  39        IRQIO_APB,
  40        IRQIO_ADM,
  41        IRQIO_CSC,
  42        IRQIO_PCI,
  43        IRQIO_MSI,
  44        IRQIO_VIR,
  45        NMI_NMI,
  46        CPU_RST,
  47        NR_ARCH_IRQS
  48};
  49
  50struct irq_stat {
  51        unsigned int irqs[NR_ARCH_IRQS];
  52};
  53
  54DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
  55
  56static __always_inline void inc_irq_stat(enum interruption_class irq)
  57{
  58        __get_cpu_var(irq_stat).irqs[irq]++;
  59}
  60
  61struct ext_code {
  62        unsigned short subcode;
  63        unsigned short code;
  64};
  65
  66typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
  67
  68int register_external_interrupt(u16 code, ext_int_handler_t handler);
  69int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
  70void service_subclass_irq_register(void);
  71void service_subclass_irq_unregister(void);
  72void measurement_alert_subclass_register(void);
  73void measurement_alert_subclass_unregister(void);
  74
  75#ifdef CONFIG_LOCKDEP
  76#  define disable_irq_nosync_lockdep(irq)       disable_irq_nosync(irq)
  77#  define disable_irq_nosync_lockdep_irqsave(irq, flags) \
  78                                                disable_irq_nosync(irq)
  79#  define disable_irq_lockdep(irq)              disable_irq(irq)
  80#  define enable_irq_lockdep(irq)               enable_irq(irq)
  81#  define enable_irq_lockdep_irqrestore(irq, flags) \
  82                                                enable_irq(irq)
  83#endif
  84
  85#endif /* _ASM_IRQ_H */
  86