LXR linux/arch/nios2/include/asm/tlbflush.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
   4 */
   5
   6#ifndef _ASM_NIOS2_TLBFLUSH_H
   7#define _ASM_NIOS2_TLBFLUSH_H
   8
   9struct mm_struct;
  10
  11/*
  12 * TLB flushing:
  13 *
  14 *  - flush_tlb_all() flushes all processes TLB entries
  15 *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
  16 *  - flush_tlb_range(vma, start, end) flushes a range of pages
  17 *  - flush_tlb_page(vma, address) flushes a page
  18 *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
  19 *  - flush_tlb_kernel_page(address) flushes a kernel page
  20 *
  21 *  - reload_tlb_page(vma, address, pte) flushes the TLB for address like
  22 *    flush_tlb_page, then replaces it with a TLB for pte.
  23 */
  24extern void flush_tlb_all(void);
  25extern void flush_tlb_mm(struct mm_struct *mm);
  26extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
  27                            unsigned long end);
  28extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
  29
  30static inline void flush_tlb_page(struct vm_area_struct *vma,
  31                                  unsigned long address)
  32{
  33        flush_tlb_range(vma, address, address + PAGE_SIZE);
  34}
  35
  36static inline void flush_tlb_kernel_page(unsigned long address)
  37{
  38        flush_tlb_kernel_range(address, address + PAGE_SIZE);
  39}
  40
  41extern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr,
  42                            pte_t pte);
  43
  44#endif /* _ASM_NIOS2_TLBFLUSH_H */
  45