68 строки
1.1 KiB
C
68 строки
1.1 KiB
C
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#ifndef __ALPHA_IRQFLAGS_H
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#define __ALPHA_IRQFLAGS_H
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#include <asm/system.h>
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#define IPL_MIN 0
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#define IPL_SW0 1
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#define IPL_SW1 2
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#define IPL_DEV0 3
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#define IPL_DEV1 4
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#define IPL_TIMER 5
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#define IPL_PERF 6
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#define IPL_POWERFAIL 6
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#define IPL_MCHECK 7
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#define IPL_MAX 7
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#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
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#undef IPL_MIN
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#define IPL_MIN __min_ipl
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extern int __min_ipl;
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#endif
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#define getipl() (rdps() & 7)
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#define setipl(ipl) ((void) swpipl(ipl))
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static inline unsigned long arch_local_save_flags(void)
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{
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return rdps();
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}
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static inline void arch_local_irq_disable(void)
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{
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setipl(IPL_MAX);
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barrier();
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}
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static inline unsigned long arch_local_irq_save(void)
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{
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unsigned long flags = swpipl(IPL_MAX);
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barrier();
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return flags;
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}
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static inline void arch_local_irq_enable(void)
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{
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barrier();
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setipl(IPL_MIN);
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}
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static inline void arch_local_irq_restore(unsigned long flags)
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{
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barrier();
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setipl(flags);
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barrier();
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}
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static inline bool arch_irqs_disabled_flags(unsigned long flags)
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{
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return flags == IPL_MAX;
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}
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static inline bool arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(getipl());
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}
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#endif /* __ALPHA_IRQFLAGS_H */
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