LXR linux/arch/microblaze/include/asm/tlbflush.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   4 * Copyright (C) 2008-2009 PetaLogix
   5 * Copyright (C) 2006 Atmark Techno, Inc.
   6 */
   7
   8#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
   9#define _ASM_MICROBLAZE_TLBFLUSH_H
  10
  11#include <linux/sched.h>
  12#include <linux/threads.h>
  13#include <asm/processor.h>      /* For TASK_SIZE */
  14#include <asm/mmu.h>
  15#include <asm/page.h>
  16
  17extern void _tlbie(unsigned long address);
  18extern void _tlbia(void);
  19
  20#define __tlbia()       { preempt_disable(); _tlbia(); preempt_enable(); }
  21#define __tlbie(x)      { _tlbie(x); }
  22
  23static inline void local_flush_tlb_all(void)
  24        { __tlbia(); }
  25static inline void local_flush_tlb_mm(struct mm_struct *mm)
  26        { __tlbia(); }
  27static inline void local_flush_tlb_page(struct vm_area_struct *vma,
  28                                unsigned long vmaddr)
  29        { __tlbie(vmaddr); }
  30static inline void local_flush_tlb_range(struct vm_area_struct *vma,
  31                unsigned long start, unsigned long end)
  32        { __tlbia(); }
  33
  34#define flush_tlb_kernel_range(start, end)      do { } while (0)
  35
  36#define update_mmu_cache(vma, addr, ptep)       do { } while (0)
  37
  38#define flush_tlb_all local_flush_tlb_all
  39#define flush_tlb_mm local_flush_tlb_mm
  40#define flush_tlb_page local_flush_tlb_page
  41#define flush_tlb_range local_flush_tlb_range
  42
  43/*
  44 * This is called in munmap when we have freed up some page-table
  45 * pages.  We don't need to do anything here, there's nothing special
  46 * about our page-table pages.  -- paulus
  47 */
  48static inline void flush_tlb_pgtables(struct mm_struct *mm,
  49        unsigned long start, unsigned long end) { }
  50
  51#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
  52