tlbflush.h 1.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __ASM_TLBFLUSH_H
  3. #define __ASM_TLBFLUSH_H
  4. #include <linux/mm.h>
  5. /*
  6. * TLB flushing:
  7. *
  8. * - flush_tlb_all() flushes all processes TLB entries
  9. * - flush_tlb_mm(mm) flushes the specified mm context TLB entries
  10. * - flush_tlb_page(vma, vmaddr) flushes one page
  11. * - flush_tlb_range(vma, start, end) flushes a range of pages
  12. * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
  13. */
  14. extern void local_flush_tlb_all(void);
  15. extern void local_flush_tlb_range(struct vm_area_struct *vma,
  16. unsigned long start, unsigned long end);
  17. extern void local_flush_tlb_kernel_range(unsigned long start,
  18. unsigned long end);
  19. extern void local_flush_tlb_page(struct vm_area_struct *vma,
  20. unsigned long page);
  21. extern void local_flush_tlb_one(unsigned long vaddr);
  22. #include <asm/mmu_context.h>
  23. #ifdef CONFIG_SMP
  24. extern void flush_tlb_all(void);
  25. extern void flush_tlb_mm(struct mm_struct *);
  26. extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long,
  27. unsigned long);
  28. extern void flush_tlb_kernel_range(unsigned long, unsigned long);
  29. extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
  30. extern void flush_tlb_one(unsigned long vaddr);
  31. #else /* CONFIG_SMP */
  32. #define flush_tlb_all() local_flush_tlb_all()
  33. #define flush_tlb_mm(mm) drop_mmu_context(mm)
  34. #define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, end)
  35. #define flush_tlb_kernel_range(vmaddr,end) \
  36. local_flush_tlb_kernel_range(vmaddr, end)
  37. #define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
  38. #define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
  39. #endif /* CONFIG_SMP */
  40. #endif /* __ASM_TLBFLUSH_H */