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drivers/watchdog/octeon-wdt-nmi.S
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/*
* 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) 2007 Cavium Networks
*/
#include <asm/asm.h>
#include <asm/regdef.h>
#define SAVE_REG(r) sd $r, -32768+6912-(32-r)*8($0)
NESTED(octeon_wdt_nmi_stage2, 0, sp)
.set push
.set noreorder
.set noat
/* Save all registers to the top CVMSEG. This shouldn't
* corrupt any state used by the kernel. Also all registers
* should have the value right before the NMI. */
SAVE_REG(0)
SAVE_REG(1)
SAVE_REG(2)
SAVE_REG(3)
SAVE_REG(4)
SAVE_REG(5)
SAVE_REG(6)
SAVE_REG(7)
SAVE_REG(8)
SAVE_REG(9)
SAVE_REG(10)
SAVE_REG(11)
SAVE_REG(12)
SAVE_REG(13)
SAVE_REG(14)
SAVE_REG(15)
SAVE_REG(16)
SAVE_REG(17)
SAVE_REG(18)
SAVE_REG(19)
SAVE_REG(20)
SAVE_REG(21)
SAVE_REG(22)
SAVE_REG(23)
SAVE_REG(24)
SAVE_REG(25)
SAVE_REG(26)
SAVE_REG(27)
SAVE_REG(28)
SAVE_REG(29)
SAVE_REG(30)
SAVE_REG(31)
/* Set the stack to begin right below the registers */
li sp, -32768+6912-32*8
/* Load the address of the third stage handler */
dla a0, octeon_wdt_nmi_stage3
/* Call the third stage handler */
jal a0
/* a0 is the address of the saved registers */
move a0, sp
/* Loop forvever if we get here. */
1: b 1b
nop
.set pop
END(octeon_wdt_nmi_stage2)
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