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kernel add
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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 */
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