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Diffstat (limited to 'arch/arm64/include/asm/current.h')
-rw-r--r--arch/arm64/include/asm/current.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/current.h b/arch/arm64/include/asm/current.h
new file mode 100644
index 000000000000..2e61d21294ba
--- /dev/null
+++ b/arch/arm64/include/asm/current.h
@@ -0,0 +1,27 @@
+#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;
+
+static __always_inline struct task_struct *get_current(void)
+{
+ return (struct task_struct *)read_sysreg(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 */
+