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b920de1b DH |
1 | /* MN10300 Hardware IRQ statistics and management |
2 | * | |
3 | * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. | |
4 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
5 | * Modified by David Howells (dhowells@redhat.com) | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public Licence | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the Licence, or (at your option) any later version. | |
11 | */ | |
12 | #ifndef _ASM_HARDIRQ_H | |
13 | #define _ASM_HARDIRQ_H | |
14 | ||
15 | #include <linux/threads.h> | |
16 | #include <linux/irq.h> | |
17 | #include <asm/exceptions.h> | |
18 | ||
19 | /* assembly code in softirq.h is sensitive to the offsets of these fields */ | |
20 | typedef struct { | |
21 | unsigned int __softirq_pending; | |
22 | unsigned long idle_timestamp; | |
23 | unsigned int __nmi_count; /* arch dependent */ | |
24 | unsigned int __irq_count; /* arch dependent */ | |
25 | } ____cacheline_aligned irq_cpustat_t; | |
26 | ||
27 | #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ | |
28 | ||
29 | extern void ack_bad_irq(int irq); | |
30 | ||
31 | /* | |
32 | * manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table | |
33 | * - these should jump to __common_exception in entry.S unless there's a good | |
34 | * reason to do otherwise (see trap_preinit() in traps.c) | |
35 | */ | |
36 | typedef void (*intr_stub_fnx)(struct pt_regs *regs, | |
37 | enum exception_code intcode); | |
38 | ||
39 | /* | |
40 | * manipulate pointers in the Exception table (see entry.S) | |
41 | * - these are indexed by decoding the lower 24 bits of the TBR register | |
42 | * - note that the MN103E010 doesn't always trap through the correct vector, | |
43 | * but does always set the TBR correctly | |
44 | */ | |
45 | extern asmlinkage void set_excp_vector(enum exception_code code, | |
46 | intr_stub_fnx handler); | |
47 | ||
48 | #endif /* _ASM_HARDIRQ_H */ |