linux/arch/powerpc/include/asm/current.h
Stephen Rothwell b8b572e101 powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc.  This is the result of a

mkdir arch/powerpc/include/asm
git mv include/asm-powerpc/* arch/powerpc/include/asm

Followed by a few documentation/comment fixups and a couple of places
where <asm-powepc/...> was being used explicitly.  Of the latter only
one was outside the arch code and it is a driver only built for powerpc.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-04 12:02:00 +10:00

40 lines
835 B
C

#ifndef _ASM_POWERPC_CURRENT_H
#define _ASM_POWERPC_CURRENT_H
#ifdef __KERNEL__
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
struct task_struct;
#ifdef __powerpc64__
#include <linux/stddef.h>
#include <asm/paca.h>
static inline struct task_struct *get_current(void)
{
struct task_struct *task;
__asm__ __volatile__("ld %0,%1(13)"
: "=r" (task)
: "i" (offsetof(struct paca_struct, __current)));
return task;
}
#define current get_current()
#else
/*
* We keep `current' in r2 for speed.
*/
register struct task_struct *current asm ("r2");
#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_CURRENT_H */