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David Howells
b920de1b77
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. [[email protected]: nuke cvs control strings] Signed-off-by: Masakazu Urade <[email protected]> Signed-off-by: Koichi Yasutake <[email protected]> Signed-off-by: David Howells <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
38 lines
922 B
C
38 lines
922 B
C
/* MN10300 Current task structure accessor
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells ([email protected])
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#ifndef _ASM_CURRENT_H
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#define _ASM_CURRENT_H
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#include <linux/thread_info.h>
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/*
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* dedicate E2 to keeping the current task pointer
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*/
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#ifdef CONFIG_MN10300_CURRENT_IN_E2
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register struct task_struct *const current asm("e2") __attribute__((used));
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#define get_current() current
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extern struct task_struct *__current;
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#else
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static inline __attribute__((const))
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struct task_struct *get_current(void)
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{
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return current_thread_info()->task;
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}
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#define current get_current()
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#endif
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#endif /* _ASM_CURRENT_H */
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