| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* include/asm/current.h |
| * |
| * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| * Copyright (C) 2002 Pete Zaitcev (zaitcev@yahoo.com) |
| * Copyright (C) 2007 David S. Miller (davem@davemloft.net) |
| * |
| * Derived from "include/asm-s390/current.h" by |
| * Martin Schwidefsky (schwidefsky@de.ibm.com) |
| * Derived from "include/asm-i386/current.h" |
| */ |
| #ifndef _SPARC_CURRENT_H |
| #define _SPARC_CURRENT_H |
| |
| #include <linux/thread_info.h> |
| |
| #ifdef CONFIG_SPARC64 |
| register struct task_struct *current asm("g4"); |
| #endif |
| |
| #ifdef CONFIG_SPARC32 |
| /* We might want to consider using %g4 like sparc64 to shave a few cycles. |
| * |
| * Two stage process (inline + #define) for type-checking. |
| * We also obfuscate get_current() to check if anyone used that by mistake. |
| */ |
| struct task_struct; |
| static inline struct task_struct *__get_current(void) |
| { |
| return current_thread_info()->task; |
| } |
| #define current __get_current() |
| #endif |
| |
| #endif /* !(_SPARC_CURRENT_H) */ |
