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| author | David S. Miller <davem@davemloft.net> | 2009-04-13 14:41:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-13 14:41:05 -0700 |
| commit | 83400207a07584539366f6859362db6872809a12 (patch) | |
| tree | fad187f8b3bebf1b387ec42ef8143e6f4e49a256 /arch/frv/include/asm/mmu_context.h | |
| parent | 0d489ffb76de0fe804cf06a9d4d11fa7342d74b9 (diff) | |
| parent | 80a04d3f2f94fb68b5df05e3ac6697130bc3467a (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
MAINTAINERS
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 00000000000..c7daa395156 --- /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 |