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###############################################################################
#
# MN10300 Watchdog interrupt handler
#
# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
# Written by David Howells (dhowells@redhat.com)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public Licence
# as published by the Free Software Foundation; either version
# 2 of the Licence, or (at your option) any later version.
#
###############################################################################
#include <linux/sys.h>
#include <linux/linkage.h>
#include <asm/intctl-regs.h>
#include <asm/timer-regs.h>
#include <asm/frame.inc>
#include <linux/threads.h>
.text
###############################################################################
#
# Watchdog handler entry point
# - special non-maskable interrupt
#
###############################################################################
.globl watchdog_handler
.type watchdog_handler,@function
watchdog_handler:
add -4,sp
SAVE_ALL
mov 0xffffffff,d0
mov d0,(REG_ORIG_D0,fp)
mov fp,d0
lsr 2,d1
call watchdog_interrupt[],0 # watchdog_interrupt(regs,irq)
jmp ret_from_intr
.size watchdog_handler,.-watchdog_handler
###############################################################################
#
# Watchdog touch entry point
# - kept to absolute minimum (unfortunately, it's prototyped in linux/nmi.h so
# we can't inline it)
#
###############################################################################
.globl touch_nmi_watchdog
.type touch_nmi_watchdog,@function
touch_nmi_watchdog:
clr d0
clr d1
mov watchdog_alert_counter, a0
setlb
mov d0, (a0+)
inc d1
cmp NR_CPUS, d1
lne
ret [],0
.size touch_nmi_watchdog,.-touch_nmi_watchdog
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