Release 4.7 arch/sh/include/asm/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 */
}
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#ifdef CONFIG_CPU_HAS_PTEAEX
static inline void set_asid(unsigned long asid)
{
__raw_writel(asid, MMU_PTEAEX);
}
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static inline unsigned long get_asid(void)
{
return __raw_readl(MMU_PTEAEX) & MMU_CONTEXT_ASID_MASK;
}
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#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));
}
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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;
}
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#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);
}
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static inline pgd_t *get_TTB(void)
{
return (pgd_t *)__raw_readl(MMU_TTB);
}
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#endif /* __ASM_SH_MMU_CONTEXT_32_H */
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