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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_CSKY_MMU_CONTEXT_H
#define __ASM_CSKY_MMU_CONTEXT_H
#include <asm-generic/mm_hooks.h>
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <abi/ckmmu.h>
#define ASID_MASK ((1 << CONFIG_CPU_ASID_BITS) - 1)
#define cpu_asid(mm) (atomic64_read(&mm->context.asid) & ASID_MASK)
#define init_new_context(tsk,mm) ({ atomic64_set(&(mm)->context.asid, 0); 0; })
void check_and_switch_context(struct mm_struct *mm, unsigned int cpu);
static inline void
switch_mm(struct mm_struct *prev, struct mm_struct *next,
struct task_struct *tsk)
{
unsigned int cpu = smp_processor_id();
if (prev != next)
check_and_switch_context(next, cpu);
setup_pgd(next->pgd, next->context.asid.counter);
flush_icache_deferred(next);
}
#include <asm-generic/mmu_context.h>
#endif /* __ASM_CSKY_MMU_CONTEXT_H */