mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 20:42:39 +00:00
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/* MN10300 Hardware IRQ statistics and management
|
|
*
|
|
* Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
|
|
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
* Modified 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.
|
|
*/
|
|
#ifndef _ASM_HARDIRQ_H
|
|
#define _ASM_HARDIRQ_H
|
|
|
|
#include <linux/threads.h>
|
|
#include <linux/irq.h>
|
|
#include <asm/exceptions.h>
|
|
|
|
/* assembly code in softirq.h is sensitive to the offsets of these fields */
|
|
typedef struct {
|
|
unsigned int __softirq_pending;
|
|
unsigned long idle_timestamp;
|
|
unsigned int __nmi_count; /* arch dependent */
|
|
unsigned int __irq_count; /* arch dependent */
|
|
} ____cacheline_aligned irq_cpustat_t;
|
|
|
|
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
|
|
|
|
extern void ack_bad_irq(int irq);
|
|
|
|
/*
|
|
* manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table
|
|
* - these should jump to __common_exception in entry.S unless there's a good
|
|
* reason to do otherwise (see trap_preinit() in traps.c)
|
|
*/
|
|
typedef void (*intr_stub_fnx)(struct pt_regs *regs,
|
|
enum exception_code intcode);
|
|
|
|
/*
|
|
* manipulate pointers in the Exception table (see entry.S)
|
|
* - these are indexed by decoding the lower 24 bits of the TBR register
|
|
* - note that the MN103E010 doesn't always trap through the correct vector,
|
|
* but does always set the TBR correctly
|
|
*/
|
|
extern asmlinkage void set_excp_vector(enum exception_code code,
|
|
intr_stub_fnx handler);
|
|
|
|
#endif /* _ASM_HARDIRQ_H */
|