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C/C++ Source or Header  |  2006-08-11  |  2.5 KB  |  63 lines
  1. #ifndef _SPARC_TLBFLUSH_H
  2. #define _SPARC_TLBFLUSH_H
  3.  
  4. #include <linux/mm.h>
  5. // #include <asm/processor.h>
  6.  
  7. /*
  8.  * TLB flushing:
  9.  *
  10.  *  - flush_tlb() flushes the current mm struct TLBs    XXX Exists?
  11.  *  - flush_tlb_all() flushes all processes TLBs 
  12.  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
  13.  *  - flush_tlb_page(vma, vmaddr) flushes one page
  14.  *  - flush_tlb_range(vma, start, end) flushes a range of pages
  15.  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
  16.  *  - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
  17.  */
  18.  
  19. #ifdef CONFIG_SMP
  20.  
  21. BTFIXUPDEF_CALL(void, local_flush_tlb_all, void)
  22. BTFIXUPDEF_CALL(void, local_flush_tlb_mm, struct mm_struct *)
  23. BTFIXUPDEF_CALL(void, local_flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long)
  24. BTFIXUPDEF_CALL(void, local_flush_tlb_page, struct vm_area_struct *, unsigned long)
  25.  
  26. #define local_flush_tlb_all() BTFIXUP_CALL(local_flush_tlb_all)()
  27. #define local_flush_tlb_mm(mm) BTFIXUP_CALL(local_flush_tlb_mm)(mm)
  28. #define local_flush_tlb_range(vma,start,end) BTFIXUP_CALL(local_flush_tlb_range)(vma,start,end)
  29. #define local_flush_tlb_page(vma,addr) BTFIXUP_CALL(local_flush_tlb_page)(vma,addr)
  30.  
  31. extern void smp_flush_tlb_all(void);
  32. extern void smp_flush_tlb_mm(struct mm_struct *mm);
  33. extern void smp_flush_tlb_range(struct vm_area_struct *vma,
  34.                   unsigned long start,
  35.                   unsigned long end);
  36. extern void smp_flush_tlb_page(struct vm_area_struct *mm, unsigned long page);
  37.  
  38. #endif /* CONFIG_SMP */
  39.  
  40. BTFIXUPDEF_CALL(void, flush_tlb_all, void)
  41. BTFIXUPDEF_CALL(void, flush_tlb_mm, struct mm_struct *)
  42. BTFIXUPDEF_CALL(void, flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long)
  43. BTFIXUPDEF_CALL(void, flush_tlb_page, struct vm_area_struct *, unsigned long)
  44.  
  45. // Thanks to Anton Blanchard, our pagetables became uncached in 2.4. Wee!
  46. // extern void flush_tlb_pgtables(struct mm_struct *mm,
  47. //     unsigned long start, unsigned long end);
  48. #define flush_tlb_pgtables(mm, start, end)    do{ }while(0)
  49.  
  50. #define flush_tlb_all() BTFIXUP_CALL(flush_tlb_all)()
  51. #define flush_tlb_mm(mm) BTFIXUP_CALL(flush_tlb_mm)(mm)
  52. #define flush_tlb_range(vma,start,end) BTFIXUP_CALL(flush_tlb_range)(vma,start,end)
  53. #define flush_tlb_page(vma,addr) BTFIXUP_CALL(flush_tlb_page)(vma,addr)
  54.  
  55. // #define flush_tlb() flush_tlb_mm(current->active_mm)    /* XXX Sure? */
  56.  
  57. /*
  58.  * This is a kludge, until I know better. --zaitcev XXX
  59.  */
  60. #define flush_tlb_kernel_range(start, end) flush_tlb_all()
  61.  
  62. #endif /* _SPARC_TLBFLUSH_H */
  63.