68 строки
1.1 KiB
C
68 строки
1.1 KiB
C
#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 */
|