Merge branch 'linux-4.12' of git://github.com/skeggsb/linux into drm-next
[sfrench/cifs-2.6.git] / arch / arm64 / include / asm / current.h
1 #ifndef __ASM_CURRENT_H
2 #define __ASM_CURRENT_H
3
4 #include <linux/compiler.h>
5
6 #ifndef __ASSEMBLY__
7
8 struct task_struct;
9
10 /*
11  * We don't use read_sysreg() as we want the compiler to cache the value where
12  * possible.
13  */
14 static __always_inline struct task_struct *get_current(void)
15 {
16         unsigned long sp_el0;
17
18         asm ("mrs %0, sp_el0" : "=r" (sp_el0));
19
20         return (struct task_struct *)sp_el0;
21 }
22
23 #define current get_current()
24
25 #endif /* __ASSEMBLY__ */
26
27 #endif /* __ASM_CURRENT_H */
28