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irqflags.h

#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 */

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