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(mm, start, end) flushes a range of pages
  29  */
  30 extern void local_flush_tlb_all(void);
  31 extern void local_flush_tlb_mm(struct mm_struct *mm);
  32 extern void local_flush_tlb_page(struct vm_area_struct *vma,
  33                                  unsigned long addr);
  34 extern 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
  44 extern void flush_tlb_all(void);
  45 extern void flush_tlb_mm(struct mm_struct *mm);
  46 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
  47 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
  48                             unsigned long end);
  49 #endif
  50
  51 static inline void flush_tlb(void)
  52 {
  53         flush_tlb_mm(current->mm);
  54 }
  55
  56 static 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 */