diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
commit | 5f4457a4f62cc9d78e04c0eb12ff0540899aad89 (patch) | |
tree | 0b973d527ea6b2ae31e08da0746b4965a3c5a6d8 /arch/frv/include/asm/mmu_context.h | |
parent | 9b94b3a19b13e094c10f65f24bc358f6ffe4eacd (diff) | |
parent | b87297fb405ef13cac375f202d114323b076a56d (diff) |
Merge branch 'linus' into x86/cpu
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 |