arch/sparc/kernel/misctrap.S

   1 #ifdef CONFIG_KGDB
   2         .globl          arch_kgdb_breakpoint
   3         .type           arch_kgdb_breakpoint,#function
   4 arch_kgdb_breakpoint:
   5         ta              0x72
   6         retl
   7          nop
   8         .size           arch_kgdb_breakpoint,.-arch_kgdb_breakpoint
   9 #endif
  10
  11         .type           __do_privact,#function
  12 __do_privact:
  13         mov             TLB_SFSR, %g3
  14         stxa            %g0, [%g3] ASI_DMMU     ! Clear FaultValid bit
  15         membar          #Sync
  16         sethi           %hi(109f), %g7
  17         ba,pt           %xcc, etrap
  18 109:    or              %g7, %lo(109b), %g7
  19         call            do_privact
  20          add            %sp, PTREGS_OFF, %o0
  21         ba,a,pt         %xcc, rtrap
  22         .size           __do_privact,.-__do_privact
  23
  24         .type           do_mna,#function
  25 do_mna:
  26         rdpr            %tl, %g3
  27         cmp             %g3, 1
  28
  29         /* Setup %g4/%g5 now as they are used in the
  30          * winfixup code.
  31          */
  32         mov             TLB_SFSR, %g3
  33         mov             DMMU_SFAR, %g4
  34         ldxa            [%g4] ASI_DMMU, %g4
  35         ldxa            [%g3] ASI_DMMU, %g5
  36         stxa            %g0, [%g3] ASI_DMMU     ! Clear FaultValid bit
  37         membar          #Sync
  38         bgu,pn          %icc, winfix_mna
  39          rdpr           %tpc, %g3
  40
  41 1:      sethi           %hi(109f), %g7
  42         ba,pt           %xcc, etrap
  43 109:     or             %g7, %lo(109b), %g7
  44         mov             %l4, %o1
  45         mov             %l5, %o2
  46         call            mem_address_unaligned
  47          add            %sp, PTREGS_OFF, %o0
  48         ba,a,pt         %xcc, rtrap
  49         .size           do_mna,.-do_mna
  50
  51         .type           do_lddfmna,#function
  52 do_lddfmna:
  53         sethi           %hi(109f), %g7
  54         mov             TLB_SFSR, %g4
  55         ldxa            [%g4] ASI_DMMU, %g5
  56         stxa            %g0, [%g4] ASI_DMMU     ! Clear FaultValid bit
  57         membar          #Sync
  58         mov             DMMU_SFAR, %g4
  59         ldxa            [%g4] ASI_DMMU, %g4
  60         ba,pt           %xcc, etrap
  61 109:     or             %g7, %lo(109b), %g7
  62         mov             %l4, %o1
  63         mov             %l5, %o2
  64         call            handle_lddfmna
  65          add            %sp, PTREGS_OFF, %o0
  66         ba,a,pt         %xcc, rtrap
  67         .size           do_lddfmna,.-do_lddfmna
  68
  69         .type           do_stdfmna,#function
  70 do_stdfmna:
  71         sethi           %hi(109f), %g7
  72         mov             TLB_SFSR, %g4
  73         ldxa            [%g4] ASI_DMMU, %g5
  74         stxa            %g0, [%g4] ASI_DMMU     ! Clear FaultValid bit
  75         membar          #Sync
  76         mov             DMMU_SFAR, %g4
  77         ldxa            [%g4] ASI_DMMU, %g4
  78         ba,pt           %xcc, etrap
  79 109:     or             %g7, %lo(109b), %g7
  80         mov             %l4, %o1
  81         mov             %l5, %o2
  82         call            handle_stdfmna
  83          add            %sp, PTREGS_OFF, %o0
  84         ba,a,pt         %xcc, rtrap
  85         .size           do_stdfmna,.-do_stdfmna
  86
  87         .type           breakpoint_trap,#function
  88 breakpoint_trap:
  89         call            sparc_breakpoint
  90          add            %sp, PTREGS_OFF, %o0
  91         ba,pt           %xcc, rtrap
  92          nop
  93         .size           breakpoint_trap,.-breakpoint_trap