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1 | /* SPDX-License-Identifier: GPL-2.0 */ | |
2 | #ifndef __ASM_CURRENT_H | |
3 | #define __ASM_CURRENT_H | |
4 | ||
5 | #include <linux/compiler.h> | |
6 | ||
7 | #ifndef __ASSEMBLY__ | |
8 | ||
9 | struct task_struct; | |
10 | ||
11 | /* | |
12 | * We don't use read_sysreg() as we want the compiler to cache the value where | |
13 | * possible. | |
14 | */ | |
15 | static __always_inline struct task_struct *get_current(void) | |
16 | { | |
17 | unsigned long sp_el0; | |
18 | ||
19 | asm ("mrs %0, sp_el0" : "=r" (sp_el0)); | |
20 | ||
21 | return (struct task_struct *)sp_el0; | |
22 | } | |
23 | ||
24 | #define current get_current() | |
25 | ||
26 | #endif /* __ASSEMBLY__ */ | |
27 | ||
28 | #endif /* __ASM_CURRENT_H */ | |
29 |