| David Howells | b920de1 | 2008-02-08 04:19:31 -0800 | [diff] [blame] | 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 */ |