48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/* MN10300 Hardware IRQ statistics and management
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*
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* Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Modified 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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#ifndef _ASM_HARDIRQ_H
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#define _ASM_HARDIRQ_H
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#include <linux/threads.h>
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#include <linux/irq.h>
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#include <asm/exceptions.h>
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/* assembly code in softirq.h is sensitive to the offsets of these fields */
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typedef struct {
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unsigned int __softirq_pending;
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unsigned long idle_timestamp;
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unsigned int __nmi_count; /* arch dependent */
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unsigned int __irq_count; /* arch dependent */
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} ____cacheline_aligned irq_cpustat_t;
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#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
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extern void ack_bad_irq(int irq);
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/*
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* manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table
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* - these should jump to __common_exception in entry.S unless there's a good
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* reason to do otherwise (see trap_preinit() in traps.c)
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*/
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typedef void (*intr_stub_fnx)(struct pt_regs *regs,
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enum exception_code intcode);
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/*
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* manipulate pointers in the Exception table (see entry.S)
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* - these are indexed by decoding the lower 24 bits of the TBR register
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* - note that the MN103E010 doesn't always trap through the correct vector,
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* but does always set the TBR correctly
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*/
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extern asmlinkage void set_excp_vector(enum exception_code code,
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intr_stub_fnx handler);
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#endif /* _ASM_HARDIRQ_H */
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