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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_MMU_CONTEXT_32_H
#define __ASM_SH_MMU_CONTEXT_32_H
#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 */