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mmu_context_32.h

#ifndef __ASM_SH_MMU_CONTEXT_32_H
#define __ASM_SH_MMU_CONTEXT_32_H

/*
 * Destroy context related info for an mm_struct that is about
 * to be put to rest.
 */
static inline void destroy_context(struct mm_struct *mm)
{
      /* Do nothing */
}

static inline void set_asid(unsigned long asid)
{
      unsigned long __dummy;

      __asm__ __volatile__ ("mov.l  %2, %0\n\t"
                        "and  %3, %0\n\t"
                        "or   %1, %0\n\t"
                        "mov.l      %0, %2"
                        : "=&r" (__dummy)
                        : "r" (asid), "m" (__m(MMU_PTEH)),
                          "r" (0xffffff00));
}

static inline unsigned long get_asid(void)
{
      unsigned long asid;

      __asm__ __volatile__ ("mov.l  %1, %0"
                        : "=r" (asid)
                        : "m" (__m(MMU_PTEH)));
      asid &= MMU_CONTEXT_ASID_MASK;
      return asid;
}

/* MMU_TTB is used for optimizing the fault handling. */
static inline void set_TTB(pgd_t *pgd)
{
      ctrl_outl((unsigned long)pgd, MMU_TTB);
}

static inline pgd_t *get_TTB(void)
{
      return (pgd_t *)ctrl_inl(MMU_TTB);
}
#endif /* __ASM_SH_MMU_CONTEXT_32_H */

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