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38 lines
922 B
38 lines
922 B
17 years ago
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/* 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 (dhowells@redhat.com)
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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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