arch/avr32/include/arch/interrupt.h

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#ifndef ARCH_INTERRUPT_H_INCLUDED
#define ARCH_INTERRUPT_H_INCLUDED

#include <compiler.h>
#include <arch/sysreg.h>
#include <stdbool.h>

__always_inline static unsigned long cpu_irq_save(void)
{
        unsigned long flags;

        flags = sysreg_read(SR);
        cpu_irq_disable();

        return flags;
}

__always_inline static void cpu_irq_restore(unsigned long flags)
{
        barrier();
        avr32_write_sr(flags);
}

#define cpu_irq_is_enabled_flags(flags)         \
        (!((flags) & SYSREG_SR_GM))

#define cpu_irq_is_enabled()                    \
        cpu_irq_is_enabled_flags(sysreg_read(SR))

static inline bool cpu_is_in_hardirq_handler(void)
{
        return sysreg_read(SR) & SYSREG_SR_IxM;
}

#endif /* ARCH_INTERRUPT_H_INCLUDED */

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