arch/nios2/include/asm/tlbflush.h

   1 /*
   2  * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #ifndef _ASM_NIOS2_TLBFLUSH_H
  20 #define _ASM_NIOS2_TLBFLUSH_H
  21
  22 struct mm_struct;
  23
  24 /*
  25  * TLB flushing:
  26  *
  27  *  - flush_tlb_all() flushes all processes TLB entries
  28  *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
  29  *  - flush_tlb_page(vma, vmaddr) flushes one page
  30  *  - flush_tlb_range(vma, start, end) flushes a range of pages
  31  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
  32  */
  33 extern void flush_tlb_all(void);
  34 extern void flush_tlb_mm(struct mm_struct *mm);
  35 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
  36                             unsigned long end);
  37 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
  38 extern void flush_tlb_one(unsigned long vaddr);
  39
  40 static inline void flush_tlb_page(struct vm_area_struct *vma,
  41                                 unsigned long addr)
  42 {
  43         flush_tlb_one(addr);
  44 }
  45
  46 #endif /* _ASM_NIOS2_TLBFLUSH_H */