diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-05-08 10:50:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-08 10:50:00 +0200 |
| commit | f066a155334642b8a206eec625b1925d88c48aeb (patch) | |
| tree | cb12975e60b70d1dae3b7397bab955de78a4d01e /arch/frv/include/asm/mmu_context.h | |
| parent | e7c064889606aab3569669078c69b87b2c527e72 (diff) | |
| parent | 33df4db04a79660150e1948e3296eeb451ac121b (diff) | |
Merge branch 'x86/urgent' into x86/xen
Conflicts:
arch/frv/include/asm/pgtable.h
arch/x86/include/asm/required-features.h
arch/x86/xen/mmu.c
Merge reason: x86/xen was on a .29 base still, move it to a fresher
branch and pick up Xen fixes as well, plus resolve
conflicts
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/frv/include/asm/mmu_context.h')
| -rw-r--r-- | arch/frv/include/asm/mmu_context.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/frv/include/asm/mmu_context.h b/arch/frv/include/asm/mmu_context.h new file mode 100644 index 000000000000..c7daa395156a --- /dev/null +++ b/arch/frv/include/asm/mmu_context.h @@ -0,0 +1,50 @@ +/* mmu_context.h: MMU context management routines + * + * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _ASM_MMU_CONTEXT_H +#define _ASM_MMU_CONTEXT_H + +#include <asm/setup.h> +#include <asm/page.h> +#include <asm/pgalloc.h> +#include <asm-generic/mm_hooks.h> + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +#ifdef CONFIG_MMU +extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); +extern void change_mm_context(mm_context_t *old, mm_context_t *ctx, pgd_t *_pgd); +extern void destroy_context(struct mm_struct *mm); + +#else +#define init_new_context(tsk, mm) ({ 0; }) +#define change_mm_context(old, ctx, _pml4) do {} while(0) +#define destroy_context(mm) do {} while(0) +#endif + +#define switch_mm(prev, next, tsk) \ +do { \ + if (prev != next) \ + change_mm_context(&prev->context, &next->context, next->pgd); \ +} while(0) + +#define activate_mm(prev, next) \ +do { \ + change_mm_context(&prev->context, &next->context, next->pgd); \ +} while(0) + +#define deactivate_mm(tsk, mm) \ +do { \ +} while(0) + +#endif |