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