mmu_context_32.h

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#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 */
}

#ifdef CONFIG_CPU_HAS_PTEAEX
static inline void set_asid(unsigned long asid)
{
    __raw_writel(asid, MMU_PTEAEX);
}

static inline unsigned long get_asid(void)
{
    return __raw_readl(MMU_PTEAEX) & MMU_CONTEXT_ASID_MASK;
}
#else
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;
}
#endif /* CONFIG_CPU_HAS_PTEAEX */

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

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