diff options
-rw-r--r-- | include/asm-sparc/current.h | 31 | ||||
-rw-r--r-- | include/asm-sparc64/current.h | 9 |
2 files changed, 18 insertions, 22 deletions
diff --git a/include/asm-sparc/current.h b/include/asm-sparc/current.h index 8fe7c82a5e21..8a1d9d6643b0 100644 --- a/include/asm-sparc/current.h +++ b/include/asm-sparc/current.h | |||
@@ -1,31 +1,34 @@ | |||
1 | /* | 1 | /* include/asm-sparc/current.h |
2 | * include/asm-sparc/current.h | ||
3 | * | 2 | * |
4 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | 3 | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation |
5 | * Copyright (C) 2002 Pete Zaitcev (zaitcev@yahoo.com) | 4 | * Copyright (C) 2002 Pete Zaitcev (zaitcev@yahoo.com) |
5 | * Copyright (C) 2007 David S. Miller (davem@davemloft.net) | ||
6 | * | 6 | * |
7 | * Derived from "include/asm-s390/current.h" by | 7 | * Derived from "include/asm-s390/current.h" by |
8 | * Martin Schwidefsky (schwidefsky@de.ibm.com) | 8 | * Martin Schwidefsky (schwidefsky@de.ibm.com) |
9 | * Derived from "include/asm-i386/current.h" | 9 | * Derived from "include/asm-i386/current.h" |
10 | */ | 10 | */ |
11 | #ifndef _ASM_CURRENT_H | 11 | #ifndef _SPARC_CURRENT_H |
12 | #define _ASM_CURRENT_H | 12 | #define _SPARC_CURRENT_H |
13 | |||
14 | /* | ||
15 | * At the sparc64 DaveM keeps current_thread_info in %g4. | ||
16 | * We might want to consider doing the same to shave a few cycles. | ||
17 | */ | ||
18 | 13 | ||
19 | #include <linux/thread_info.h> | 14 | #include <linux/thread_info.h> |
20 | 15 | ||
21 | struct task_struct; | 16 | #ifdef CONFIG_SPARC64 |
17 | register struct task_struct *current asm("g4"); | ||
18 | #endif | ||
22 | 19 | ||
23 | /* Two stage process (inline + #define) for type-checking. */ | 20 | #ifdef CONFIG_SPARC32 |
24 | /* We also obfuscate get_current() to check if anyone used that by mistake. */ | 21 | /* We might want to consider using %g4 like sparc64 to shave a few cycles. |
22 | * | ||
23 | * Two stage process (inline + #define) for type-checking. | ||
24 | * We also obfuscate get_current() to check if anyone used that by mistake. | ||
25 | */ | ||
26 | struct task_struct; | ||
25 | static inline struct task_struct *__get_current(void) | 27 | static inline struct task_struct *__get_current(void) |
26 | { | 28 | { |
27 | return current_thread_info()->task; | 29 | return current_thread_info()->task; |
28 | } | 30 | } |
29 | #define current __get_current() | 31 | #define current __get_current() |
32 | #endif | ||
30 | 33 | ||
31 | #endif /* !(_ASM_CURRENT_H) */ | 34 | #endif /* !(_SPARC_CURRENT_H) */ |
diff --git a/include/asm-sparc64/current.h b/include/asm-sparc64/current.h index 6c21e4ee2475..a7904a7f53a8 100644 --- a/include/asm-sparc64/current.h +++ b/include/asm-sparc64/current.h | |||
@@ -1,8 +1 @@ | |||
1 | #ifndef _SPARC64_CURRENT_H | #include <asm-sparc/current.h> | |
2 | #define _SPARC64_CURRENT_H | ||
3 | |||
4 | #include <linux/thread_info.h> | ||
5 | |||
6 | register struct task_struct *current asm("g4"); | ||
7 | |||
8 | #endif /* !(_SPARC64_CURRENT_H) */ | ||