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

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * OpenRISC Linux
   4 *
   5 * Linux architectural port borrowing liberally from similar works of
   6 * others.  All original copyrights apply as per the original source
   7 * declaration.
   8 *
   9 * OpenRISC implementation:
  10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
  11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  12 * et al.
  13 */
  14
  15#ifndef __ASM_OPENRISC_TLBFLUSH_H
  16#define __ASM_OPENRISC_TLBFLUSH_H
  17
  18#include <linux/mm.h>
  19#include <asm/processor.h>
  20#include <asm/current.h>
  21#include <linux/sched.h>
  22
  23/*
  24 *  - flush_tlb() flushes the current mm struct TLBs
  25 *  - flush_tlb_all() flushes all processes TLBs
  26 *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
  27 *  - flush_tlb_page(vma, vmaddr) flushes one page
  28 *  - flush_tlb_range(vma, start, end) flushes a range of pages
  29 */
  30extern void local_flush_tlb_all(void);
  31extern void local_flush_tlb_mm(struct mm_struct *mm);
  32extern void local_flush_tlb_page(struct vm_area_struct *vma,
  33                                 unsigned long addr);
  34extern void local_flush_tlb_range(struct vm_area_struct *vma,
  35                                  unsigned long start,
  36                                  unsigned long end);
  37
  38#ifndef CONFIG_SMP
  39#define flush_tlb_all   local_flush_tlb_all
  40#define flush_tlb_mm    local_flush_tlb_mm
  41#define flush_tlb_page  local_flush_tlb_page
  42#define flush_tlb_range local_flush_tlb_range
  43#else
  44extern void flush_tlb_all(void);
  45extern void flush_tlb_mm(struct mm_struct *mm);
  46extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
  47extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
  48                            unsigned long end);
  49#endif
  50
  51static inline void flush_tlb(void)
  52{
  53        flush_tlb_mm(current->mm);
  54}
  55
  56static inline void flush_tlb_kernel_range(unsigned long start,
  57                                          unsigned long end)
  58{
  59        flush_tlb_range(NULL, start, end);
  60}
  61
  62#endif /* __ASM_OPENRISC_TLBFLUSH_H */
  63