| /* SPDX-License-Identifier: GPL-2.0-or-later */ | |
| #ifndef _ASM_POWERPC_CURRENT_H | |
| #define _ASM_POWERPC_CURRENT_H | |
| #ifdef __KERNEL__ | |
| /* | |
| */ | |
| 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; | |
| /* get_current can be cached by the compiler, so no volatile */ | |
| asm ("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 */ |