projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| a439fe51 | 2 | /* include/asm/current.h |
| 1da177e4 LT |
3 | * |
| 4 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | |
| 5 | * Copyright (C) 2002 Pete Zaitcev (zaitcev@yahoo.com) | |
| ba89f59a | 6 | * Copyright (C) 2007 David S. Miller (davem@davemloft.net) |
| 1da177e4 LT |
7 | * |
| 8 | * Derived from "include/asm-s390/current.h" by | |
| 9 | * Martin Schwidefsky (schwidefsky@de.ibm.com) | |
| 10 | * Derived from "include/asm-i386/current.h" | |
| ba89f59a DM |
11 | */ |
| 12 | #ifndef _SPARC_CURRENT_H | |
| 13 | #define _SPARC_CURRENT_H | |
| 1da177e4 LT |
14 | |
| 15 | #include <linux/thread_info.h> | |
| 16 | ||
| ba89f59a DM |
17 | #ifdef CONFIG_SPARC64 |
| 18 | register struct task_struct *current asm("g4"); | |
| 19 | #endif | |
| 1da177e4 | 20 | |
| ba89f59a DM |
21 | #ifdef CONFIG_SPARC32 |
| 22 | /* We might want to consider using %g4 like sparc64 to shave a few cycles. | |
| 23 | * | |
| 24 | * Two stage process (inline + #define) for type-checking. | |
| 25 | * We also obfuscate get_current() to check if anyone used that by mistake. | |
| 26 | */ | |
| 27 | struct task_struct; | |
| 1da177e4 LT |
28 | static inline struct task_struct *__get_current(void) |
| 29 | { | |
| 30 | return current_thread_info()->task; | |
| 31 | } | |
| 32 | #define current __get_current() | |
| ba89f59a | 33 | #endif |
| 1da177e4 | 34 | |
| ba89f59a | 35 | #endif /* !(_SPARC_CURRENT_H) */ |