irqflags.h

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#ifndef __ALPHA_IRQFLAGS_H
#define __ALPHA_IRQFLAGS_H

#include <asm/pal.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 */