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irqflags.h

#ifndef __ALPHA_IRQFLAGS_H
#define __ALPHA_IRQFLAGS_H

#include <asm/system.h>

#define IPL_MIN         0
#define IPL_SW0         1
#define IPL_SW1         2
#define IPL_DEV0  3
#define IPL_DEV1  4
#define IPL_TIMER 5
#define IPL_PERF  6
#define IPL_POWERFAIL   6
#define IPL_MCHECK      7
#define IPL_MAX         7

#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
#undef IPL_MIN
#define IPL_MIN         __min_ipl
extern int __min_ipl;
#endif

#define getipl()        (rdps() & 7)
#define setipl(ipl)           ((void) swpipl(ipl))

static inline unsigned long arch_local_save_flags(void)
{
      return rdps();
}

static inline void arch_local_irq_disable(void)
{
      setipl(IPL_MAX);
      barrier();
}

static inline unsigned long arch_local_irq_save(void)
{
      unsigned long flags = swpipl(IPL_MAX);
      barrier();
      return flags;
}

static inline void arch_local_irq_enable(void)
{
      barrier();
      setipl(IPL_MIN);
}

static inline void arch_local_irq_restore(unsigned long flags)
{
      barrier();
      setipl(flags);
      barrier();
}

static inline bool arch_irqs_disabled_flags(unsigned long flags)
{
      return flags == IPL_MAX;
}

static inline bool arch_irqs_disabled(void)
{
      return arch_irqs_disabled_flags(getipl());
}

#endif /* __ALPHA_IRQFLAGS_H */

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