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/*
* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2008-2009 PetaLogix
* Copyright (C) 2006 Atmark Techno, Inc.
*
* 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_MICROBLAZE_TLBFLUSH_H
#define _ASM_MICROBLAZE_TLBFLUSH_H
#ifdef CONFIG_MMU
#include <linux/sched.h>
#include <linux/threads.h>
#include <asm/processor.h> /* For TASK_SIZE */
#include <asm/mmu.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
extern void _tlbie(unsigned long address);
extern void _tlbia(void);
#define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); }
#define __tlbie(x) { _tlbie(x); }
static inline void local_flush_tlb_all(void)
{ __tlbia(); }
static inline void local_flush_tlb_mm(struct mm_struct *mm)
{ __tlbia(); }
static inline void local_flush_tlb_page(struct vm_area_struct *vma,
unsigned long vmaddr)
{ __tlbie(vmaddr); }
static inline void local_flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{ __tlbia(); }
#define flush_tlb_kernel_range(start, end) do { } while (0)
#define update_mmu_cache(vma, addr, ptep) do { } while (0)
#define flush_tlb_all local_flush_tlb_all
#define flush_tlb_mm local_flush_tlb_mm
#define flush_tlb_page local_flush_tlb_page
#define flush_tlb_range local_flush_tlb_range
/*
* This is called in munmap when we have freed up some page-table
* pages. We don't need to do anything here, there's nothing special
* about our page-table pages. -- paulus
*/
static inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end) { }
#else /* CONFIG_MMU */
#define flush_tlb() BUG()
#define flush_tlb_all() BUG()
#define flush_tlb_mm(mm) BUG()
#define flush_tlb_page(vma, addr) BUG()
#define flush_tlb_range(mm, start, end) BUG()
#define flush_tlb_pgtables(mm, start, end) BUG()
#define flush_tlb_kernel_range(start, end) BUG()
#endif /* CONFIG_MMU */
#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */