| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/mmu_context.h |
| 3 | * |
| 4 | * Copyright (C) 1996 Russell King. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * Changelog: |
| 11 | * 27-06-1996 RMK Created |
| 12 | */ |
| 13 | #ifndef __ASM_ARM_MMU_CONTEXT_H |
| 14 | #define __ASM_ARM_MMU_CONTEXT_H |
| 15 | |
| 16 | #define init_new_context(tsk,mm) 0 |
| 17 | #define destroy_context(mm) do { } while(0) |
| 18 | |
| 19 | /* |
| 20 | * This is called when "tsk" is about to enter lazy TLB mode. |
| 21 | * |
| 22 | * mm: describes the currently active mm context |
| 23 | * tsk: task which is entering lazy tlb |
| 24 | * cpu: cpu number which is entering lazy tlb |
| 25 | * |
| 26 | * tsk->mm will be NULL |
| 27 | */ |
| 28 | static inline void |
| 29 | enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) |
| 30 | { |
| 31 | } |
| 32 | |
| 33 | /* |
| 34 | * This is the actual mm switch as far as the scheduler |
| 35 | * is concerned. No registers are touched. |
| 36 | */ |
| 37 | static inline void |
| 38 | switch_mm(struct mm_struct *prev, struct mm_struct *next, |
| 39 | struct task_struct *tsk) |
| 40 | { |
| 41 | cpu_switch_mm(next->pgd, next); |
| 42 | } |
| 43 | |
| 44 | #define deactivate_mm(tsk,mm) do { } while (0) |
| 45 | |
| 46 | static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) |
| 47 | { |
| 48 | cpu_switch_mm(next->pgd, next); |
| 49 | } |
| 50 | |
| 51 | #endif |