mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
|
/*
|
||
|
|
* linux/include/asm-arm/mmu_context.h
|
||
|
|
*
|
||
|
|
* Copyright (C) 1996 Russell King.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* Changelog:
|
||
|
|
* 27-06-1996 RMK Created
|
||
|
|
*/
|
||
|
|
#ifndef __ASM_ARM_MMU_CONTEXT_H
|
||
|
|
#define __ASM_ARM_MMU_CONTEXT_H
|
||
|
|
|
||
|
|
#define init_new_context(tsk,mm) 0
|
||
|
|
#define destroy_context(mm) do { } while(0)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is called when "tsk" is about to enter lazy TLB mode.
|
||
|
|
*
|
||
|
|
* mm: describes the currently active mm context
|
||
|
|
* tsk: task which is entering lazy tlb
|
||
|
|
* cpu: cpu number which is entering lazy tlb
|
||
|
|
*
|
||
|
|
* tsk->mm will be NULL
|
||
|
|
*/
|
||
|
|
static inline void
|
||
|
|
enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is the actual mm switch as far as the scheduler
|
||
|
|
* is concerned. No registers are touched.
|
||
|
|
*/
|
||
|
|
static inline void
|
||
|
|
switch_mm(struct mm_struct *prev, struct mm_struct *next,
|
||
|
|
struct task_struct *tsk)
|
||
|
|
{
|
||
|
|
cpu_switch_mm(next->pgd, next);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define deactivate_mm(tsk,mm) do { } while (0)
|
||
|
|
|
||
|
|
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
|
||
|
|
{
|
||
|
|
cpu_switch_mm(next->pgd, next);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|