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-rw-r--r--arch/arc/include/asm/arcregs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 54a9b00d4c..2a1bfc74ec 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -72,6 +72,9 @@
/* gcc builtin sr needs reg param to be long immediate */
#define write_aux_reg(reg_immed, val) \
__builtin_arc_sr((unsigned int)val, reg_immed)
+
+/* ARCNUM [15:8] - field to identify each core in a multi-core system */
+#define CPU_ID_GET() ((read_aux_reg(ARC_AUX_IDENTITY) & 0xFF00) >> 8)
#endif /* __ASSEMBLY__ */
#endif /* _ASM_ARC_ARCREGS_H */