1/* 2 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 3 * Copyright (C) 2008-2009 PetaLogix 4 * Copyright (C) 2006 Atmark Techno, Inc. 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11#ifndef _ASM_MICROBLAZE_TLBFLUSH_H 12#define _ASM_MICROBLAZE_TLBFLUSH_H 13 14#ifdef CONFIG_MMU 15 16#include <linux/sched.h> 17#include <linux/threads.h> 18#include <asm/processor.h> /* For TASK_SIZE */ 19#include <asm/mmu.h> 20#include <asm/page.h> 21#include <asm/pgalloc.h> 22 23extern void _tlbie(unsigned long address); 24extern void _tlbia(void); 25 26#define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); } 27#define __tlbie(x) { _tlbie(x); } 28 29static inline void local_flush_tlb_all(void) 30 { __tlbia(); } 31static inline void local_flush_tlb_mm(struct mm_struct *mm) 32 { __tlbia(); } 33static inline void local_flush_tlb_page(struct vm_area_struct *vma, 34 unsigned long vmaddr) 35 { __tlbie(vmaddr); } 36static inline void local_flush_tlb_range(struct vm_area_struct *vma, 37 unsigned long start, unsigned long end) 38 { __tlbia(); } 39 40#define flush_tlb_kernel_range(start, end) do { } while (0) 41 42#define update_mmu_cache(vma, addr, ptep) do { } while (0) 43 44#define flush_tlb_all local_flush_tlb_all 45#define flush_tlb_mm local_flush_tlb_mm 46#define flush_tlb_page local_flush_tlb_page 47#define flush_tlb_range local_flush_tlb_range 48 49/* 50 * This is called in munmap when we have freed up some page-table 51 * pages. We don't need to do anything here, there's nothing special 52 * about our page-table pages. -- paulus 53 */ 54static inline void flush_tlb_pgtables(struct mm_struct *mm, 55 unsigned long start, unsigned long end) { } 56 57#else /* CONFIG_MMU */ 58 59#define flush_tlb() BUG() 60#define flush_tlb_all() BUG() 61#define flush_tlb_mm(mm) BUG() 62#define flush_tlb_page(vma, addr) BUG() 63#define flush_tlb_range(mm, start, end) BUG() 64#define flush_tlb_pgtables(mm, start, end) BUG() 65#define flush_tlb_kernel_range(start, end) BUG() 66 67#endif /* CONFIG_MMU */ 68 69#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */ 70