52 строки
1.2 KiB
C
52 строки
1.2 KiB
C
/*
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* linux/include/asm-arm/mmu_context.h
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*
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* Copyright (C) 1996 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Changelog:
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* 27-06-1996 RMK Created
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*/
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#ifndef __ASM_ARM_MMU_CONTEXT_H
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#define __ASM_ARM_MMU_CONTEXT_H
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#define init_new_context(tsk,mm) 0
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#define destroy_context(mm) do { } while(0)
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/*
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* This is called when "tsk" is about to enter lazy TLB mode.
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*
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* mm: describes the currently active mm context
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* tsk: task which is entering lazy tlb
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* cpu: cpu number which is entering lazy tlb
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*
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* tsk->mm will be NULL
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*/
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static inline void
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enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
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{
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}
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/*
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* This is the actual mm switch as far as the scheduler
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* is concerned. No registers are touched.
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*/
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static inline void
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switch_mm(struct mm_struct *prev, struct mm_struct *next,
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struct task_struct *tsk)
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{
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cpu_switch_mm(next->pgd, next);
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}
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#define deactivate_mm(tsk,mm) do { } while (0)
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static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
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{
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cpu_switch_mm(next->pgd, next);
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}
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#endif
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