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authorDavid Howells <dhowells@redhat.com>2008-02-08 07:19:31 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-08 12:22:30 -0500
commitb920de1b77b72ca9432ac3f97edb26541e65e5dd (patch)
tree40fa9be1470e929c47927dea7eddf184c0204229 /include/asm-mn10300/hardirq.h
parentef3d534754f31fed9c3b976fee1ece1b3bc38282 (diff)
mn10300: add the MN10300/AM33 architecture to the kernel
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-mn10300/hardirq.h')
-rw-r--r--include/asm-mn10300/hardirq.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-mn10300/hardirq.h b/include/asm-mn10300/hardirq.h
new file mode 100644
index 000000000000..54d950117674
--- /dev/null
+++ b/include/asm-mn10300/hardirq.h
@@ -0,0 +1,48 @@
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 */
20typedef 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
29extern 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 */
36typedef 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 */
45extern asmlinkage void set_excp_vector(enum exception_code code,
46 intr_stub_fnx handler);
47
48#endif /* _ASM_HARDIRQ_H */