irqflags.h

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#ifndef _M68K_IRQFLAGS_H
#define _M68K_IRQFLAGS_H

#include <linux/types.h>
#ifdef CONFIG_MMU
#include <linux/hardirq.h>
#endif
#include <linux/preempt.h>
#include <asm/thread_info.h>
#include <asm/entry.h>

static inline unsigned long arch_local_save_flags(void)
{
    unsigned long flags;
    asm volatile ("movew %%sr,%0" : "=d" (flags) : : "memory");
    return flags;
}

static inline void arch_local_irq_disable(void)
{
#ifdef CONFIG_COLDFIRE
    asm volatile (
        "move   %/sr,%%d0   \n\t"
        "ori.l  #0x0700,%%d0    \n\t"
        "move   %%d0,%/sr   \n"
        : /* no outputs */
        :
        : "cc", "%d0", "memory");
#else
    asm volatile ("oriw  #0x0700,%%sr" : : : "memory");
#endif
}

static inline void arch_local_irq_enable(void)
{
#if defined(CONFIG_COLDFIRE)
    asm volatile (
        "move   %/sr,%%d0   \n\t"
        "andi.l #0xf8ff,%%d0    \n\t"
        "move   %%d0,%/sr   \n"
        : /* no outputs */
        :
        : "cc", "%d0", "memory");
#else
# if defined(CONFIG_MMU)
    if (MACH_IS_Q40 || !hardirq_count())
# endif
        asm volatile (
            "andiw %0,%%sr"
            :
            : "i" (ALLOWINT)
            : "memory");
#endif
}

static inline unsigned long arch_local_irq_save(void)
{
    unsigned long flags = arch_local_save_flags();
    arch_local_irq_disable();
    return flags;
}

static inline void arch_local_irq_restore(unsigned long flags)
{
    asm volatile ("movew %0,%%sr" : : "d" (flags) : "memory");
}

static inline bool arch_irqs_disabled_flags(unsigned long flags)
{
    return (flags & ~ALLOWINT) != 0;
}

static inline bool arch_irqs_disabled(void)
{
    return arch_irqs_disabled_flags(arch_local_save_flags());
}

#endif /* _M68K_IRQFLAGS_H */