arch/mips/mm/tlbex-fault.S

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1999 Ralf Baechle
   7  * Copyright (C) 1999 Silicon Graphics, Inc.
   8  */
   9 #include <asm/mipsregs.h>
  10 #include <asm/page.h>
  11 #include <asm/regdef.h>
  12 #include <asm/stackframe.h>
  13
  14         .macro tlb_do_page_fault, write
  15         NESTED(tlb_do_page_fault_\write, PT_SIZE, sp)
  16         SAVE_ALL
  17         MFC0    a2, CP0_BADVADDR
  18         KMODE
  19         move    a0, sp
  20         REG_S   a2, PT_BVADDR(sp)
  21         li      a1, \write
  22         PTR_LA  ra, ret_from_exception
  23         j       do_page_fault
  24         END(tlb_do_page_fault_\write)
  25         .endm
  26
  27         tlb_do_page_fault 0
  28         tlb_do_page_fault 1