| 1 | /* |
| 2 | * arch/ubicom32/include/asm/mmu_context.h |
| 3 | * MMU context definitions for Ubicom32 architecture. |
| 4 | * |
| 5 | * (C) Copyright 2009, Ubicom, Inc. |
| 6 | * Copyright (C) 2004, Microtronix Datacom Ltd., All rights reserved. |
| 7 | * |
| 8 | * This file is part of the Ubicom32 Linux Kernel Port. |
| 9 | * |
| 10 | * The Ubicom32 Linux Kernel Port is free software: you can redistribute |
| 11 | * it and/or modify it under the terms of the GNU General Public License |
| 12 | * as published by the Free Software Foundation, either version 2 of the |
| 13 | * License, or (at your option) any later version. |
| 14 | * |
| 15 | * The Ubicom32 Linux Kernel Port is distributed in the hope that it |
| 16 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied |
| 17 | * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 18 | * the GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with the Ubicom32 Linux Kernel Port. If not, |
| 22 | * see <http://www.gnu.org/licenses/>. |
| 23 | * |
| 24 | * Ubicom32 implementation derived from (with many thanks): |
| 25 | * arch/m68knommu |
| 26 | * arch/blackfin |
| 27 | * arch/parisc |
| 28 | */ |
| 29 | |
| 30 | #ifndef _ASM_UBICOM32_MMU_CONTEXT_H |
| 31 | #define _ASM_UBICOM32_MMU_CONTEXT_H |
| 32 | |
| 33 | #include <asm/setup.h> |
| 34 | #include <asm/page.h> |
| 35 | #include <asm/pgalloc.h> |
| 36 | |
| 37 | static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) |
| 38 | { |
| 39 | } |
| 40 | |
| 41 | extern inline int |
| 42 | init_new_context(struct task_struct *tsk, struct mm_struct *mm) |
| 43 | { |
| 44 | // mm->context = virt_to_phys(mm->pgd); |
| 45 | return(0); |
| 46 | } |
| 47 | |
| 48 | #define destroy_context(mm) do { } while(0) |
| 49 | |
| 50 | static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) |
| 51 | { |
| 52 | } |
| 53 | |
| 54 | #define deactivate_mm(tsk,mm) do { } while (0) |
| 55 | |
| 56 | extern inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm) |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | #endif /* _ASM_UBICOM32_MMU_CONTEXT_H */ |
| 61 | |
