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c02433dd MR |
1 | #ifndef __ASM_CURRENT_H |
2 | #define __ASM_CURRENT_H | |
3 | ||
4 | #include <linux/compiler.h> | |
5 | ||
6 | #include <asm/sysreg.h> | |
7 | ||
8 | #ifndef __ASSEMBLY__ | |
9 | ||
10 | struct task_struct; | |
11 | ||
9d84fb27 MR |
12 | /* |
13 | * We don't use read_sysreg() as we want the compiler to cache the value where | |
14 | * possible. | |
15 | */ | |
c02433dd MR |
16 | static __always_inline struct task_struct *get_current(void) |
17 | { | |
9d84fb27 MR |
18 | unsigned long sp_el0; |
19 | ||
20 | asm ("mrs %0, sp_el0" : "=r" (sp_el0)); | |
21 | ||
22 | return (struct task_struct *)sp_el0; | |
c02433dd MR |
23 | } |
24 | ||
25 | #define current get_current() | |
26 | ||
27 | #endif /* __ASSEMBLY__ */ | |
28 | ||
29 | #endif /* __ASM_CURRENT_H */ | |
30 |