| /* 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 */ |
