Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef _ASM_POWERPC_CURRENT_H
2#define _ASM_POWERPC_CURRENT_H
3#ifdef __KERNEL__
4
5/*
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12struct task_struct;
13
14#ifdef __powerpc64__
15#include <asm/paca.h>
16
17static inline struct task_struct *get_current(void)
18{
19 struct task_struct *task;
20
21 __asm__ __volatile__("ld %0,%1(13)"
22 : "=r" (task)
23 : "i" (offsetof(struct paca_struct, __current)));
24
25 return task;
26}
27#define current get_current()
28
29#else
30
31/*
32 * We keep `current' in r2 for speed.
33 */
34register struct task_struct *current asm ("r2");
35
36#endif
37
38#endif /* __KERNEL__ */
39#endif /* _ASM_POWERPC_CURRENT_H */