linux/arch/mips/mm/tlbex-fault.S
Corey Minyard 866b6a89c6 MIPS: Add DWARF unwinding to assembly
This will allow kdump dumps to work correclty with MIPS and
future DWARF unwinding of the stack to give accurate tracebacks.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16990/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-09-06 11:01:52 +02:00

29 lines
664 B
ArmAsm

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1999 Ralf Baechle
* Copyright (C) 1999 Silicon Graphics, Inc.
*/
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
.macro tlb_do_page_fault, write
NESTED(tlb_do_page_fault_\write, PT_SIZE, sp)
.cfi_signal_frame
SAVE_ALL docfi=1
MFC0 a2, CP0_BADVADDR
KMODE
move a0, sp
REG_S a2, PT_BVADDR(sp)
li a1, \write
jal do_page_fault
j ret_from_exception
END(tlb_do_page_fault_\write)
.endm
tlb_do_page_fault 0
tlb_do_page_fault 1