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authorH. Peter Anvin <hpa@zytor.com>2009-05-23 19:42:19 -0400
committerH. Peter Anvin <hpa@zytor.com>2009-05-23 19:42:19 -0400
commitee0736627d3347be0be2769fa7b26431f9726c9d (patch)
tree203e2204daaec4cf005463fdf2c7bf380d6eef36 /arch/mn10300/include/asm/current.h
parentcf9972a921470b0a2da7906104bcd540b20e33bf (diff)
parent0af48f42df15b97080b450d24219dd95db7b929a (diff)
Merge branch 'x86/urgent' into x86/setup
Resolved conflicts: arch/x86/boot/memory.c Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/mn10300/include/asm/current.h')
-rw-r--r--arch/mn10300/include/asm/current.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/mn10300/include/asm/current.h b/arch/mn10300/include/asm/current.h
new file mode 100644
index 000000000000..ca6027d83743
--- /dev/null
+++ b/arch/mn10300/include/asm/current.h
@@ -0,0 +1,37 @@
1/* MN10300 Current task structure accessor
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_CURRENT_H
12#define _ASM_CURRENT_H
13
14#include <linux/thread_info.h>
15
16/*
17 * dedicate E2 to keeping the current task pointer
18 */
19#ifdef CONFIG_MN10300_CURRENT_IN_E2
20
21register struct task_struct *const current asm("e2") __attribute__((used));
22
23#define get_current() current
24
25extern struct task_struct *__current;
26
27#else
28static inline __attribute__((const))
29struct task_struct *get_current(void)
30{
31 return current_thread_info()->task;
32}
33
34#define current get_current()
35#endif
36
37#endif /* _ASM_CURRENT_H */