/* * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> * Copyright (C) 1996, 1997, 1998, 1999 by Ralf Baechle * Copyright (C) 1999 Silicon Graphics, Inc. * * based on MIPS asm/mmu_context.h * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef _ASM_NIOS2_MMU_CONTEXT_H #define _ASM_NIOS2_MMU_CONTEXT_H #include <linux/mm_types.h> #include <asm-generic/mm_hooks.h> extern void mmu_context_init(void); extern unsigned long get_pid_from_context(mm_context_t *ctx); /* * For the fast tlb miss handlers, we keep a pointer to the current pgd. * processor. */ extern pgd_t *pgd_current; /* * Initialize the context related info for a new mm_struct instance. * * Set all new contexts to 0, that way the generation will never match * the currently running generation when this context is switched in. */ #define init_new_context init_new_context static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { mm->context = 0; return 0; } void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk); /* * After we have set current->mm to a new value, this activates * the context for the new mm so we see the new mappings. */ #define activate_mm activate_mm void activate_mm(struct mm_struct *prev, struct mm_struct *next); #include <asm-generic/mmu_context.h> #endif /* _ASM_NIOS2_MMU_CONTEXT_H */