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40 lines
1.0 KiB
40 lines
1.0 KiB
18 years ago
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/*
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* include/asm-sparc/irqflags.h
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*
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* IRQ flags handling
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*
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* This file gets included from lowlevel asm headers too, to provide
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* wrapped versions of the local_irq_*() APIs, based on the
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* raw_local_irq_*() functions from the lowlevel headers.
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#ifndef __ASSEMBLY__
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extern void raw_local_irq_restore(unsigned long);
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extern unsigned long __raw_local_irq_save(void);
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extern void raw_local_irq_enable(void);
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static inline unsigned long getipl(void)
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{
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unsigned long retval;
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__asm__ __volatile__("rd %%psr, %0" : "=r" (retval));
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return retval;
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}
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#define raw_local_save_flags(flags) ((flags) = getipl())
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#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save())
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#define raw_local_irq_disable() ((void) __raw_local_irq_save())
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#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0)
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static inline int raw_irqs_disabled_flags(unsigned long flags)
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{
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return ((flags & PSR_PIL) != 0);
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}
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#endif /* (__ASSEMBLY__) */
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#endif /* !(_ASM_IRQFLAGS_H) */
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