blob: 483a6c9d3e1049c81a4f4fdeafaa50e6e75a32c1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#ifndef __ASM_CURRENT_H
#define __ASM_CURRENT_H
#include <linux/compiler.h>
#include <asm/sysreg.h>
#ifndef __ASSEMBLY__
#ifdef CONFIG_THREAD_INFO_IN_TASK
struct task_struct;
/*
* We don't use read_sysreg() as we want the compiler to cache the value where
* possible.
*/
static __always_inline struct task_struct *get_current(void)
{
unsigned long sp_el0;
asm ("mrs %0, sp_el0" : "=r" (sp_el0));
return (struct task_struct *)sp_el0;
}
#define current get_current()
#else
#include <linux/thread_info.h>
#define get_current() (current_thread_info()->task)
#define current get_current()
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ASM_CURRENT_H */
|