diff options
author | Jonas Bonn <jonas@southpole.se> | 2011-06-04 11:06:11 +0300 |
---|---|---|
committer | Jonas Bonn <jonas@southpole.se> | 2011-07-22 18:46:28 +0200 |
commit | 61e85e367535a7b6385b404bef93928768140f96 (patch) | |
tree | a0b8cb40dff683d3d09268f55080b5539d25b9a5 /arch/openrisc/include/asm/mmu_context.h | |
parent | 4f246ba30e1a9a31fcfd91d2ab8f5c75f1362bbf (diff) |
OpenRISC: Memory management
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/openrisc/include/asm/mmu_context.h')
-rw-r--r-- | arch/openrisc/include/asm/mmu_context.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/mmu_context.h b/arch/openrisc/include/asm/mmu_context.h new file mode 100644 index 000000000000..e94b814d2e3c --- /dev/null +++ b/arch/openrisc/include/asm/mmu_context.h @@ -0,0 +1,43 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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_OPENRISC_MMU_CONTEXT_H +#define __ASM_OPENRISC_MMU_CONTEXT_H + +#include <asm-generic/mm_hooks.h> + +extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); +extern void destroy_context(struct mm_struct *mm); +extern void switch_mm(struct mm_struct *prev, struct mm_struct *next, + struct task_struct *tsk); + +#define deactivate_mm(tsk, mm) do { } while (0) + +#define activate_mm(prev, next) switch_mm((prev), (next), NULL) + +/* current active pgd - this is similar to other processors pgd + * registers like cr3 on the i386 + */ + +extern volatile pgd_t *current_pgd; /* defined in arch/openrisc/mm/fault.c */ + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +#endif |