include/asm-sparc/tlbflush.h

   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 */