1 /* 2 * OpenRISC Linux 3 * 4 * Linux architectural port borrowing liberally from similar works of 5 * others. All original copyrights apply as per the original source 6 * declaration. 7 * 8 * OpenRISC implementation: 9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> 10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> 11 * et al. 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 */ 18 19 #ifndef __ASM_OPENRISC_MMU_CONTEXT_H 20 #define __ASM_OPENRISC_MMU_CONTEXT_H 21 22 #include <asm-generic/mm_hooks.h> 23 24 extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); 25 extern void destroy_context(struct mm_struct *mm); 26 extern void switch_mm(struct mm_struct *prev, struct mm_struct *next, 27 struct task_struct *tsk); 28 29 #define deactivate_mm(tsk, mm) do { } while (0) 30 31 #define activate_mm(prev, next) switch_mm((prev), (next), NULL) 32 33 /* current active pgd - this is similar to other processors pgd 34 * registers like cr3 on the i386 35 */ 36 37 extern volatile pgd_t *current_pgd; /* defined in arch/openrisc/mm/fault.c */ 38 39 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) 40 { 41 } 42 43 #endif 44