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-rw-r--r--arch/arm/include/asm/assembler.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 380ac4f20000..9a4965ad6867 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -174,6 +174,16 @@
restore_irqs_notrace \oldcpsr
.endm
+/*
+ * Get current thread_info.
+ */
+ .macro get_thread_info, rd
+ ARM( mov \rd, sp, lsr #13 )
+ THUMB( mov \rd, sp )
+ THUMB( lsr \rd, \rd, #13 )
+ mov \rd, \rd, lsl #13
+ .endm
+
#define USER(x...) \
9999: x; \
.pushsection __ex_table,"a"; \