--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/tlb.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/mips/include/asm/tlb.h	2021-02-04 17:41:59.000000000 +0000
@@ -18,6 +18,10 @@
  */
 #define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
 
+#define UNIQUE_ENTRYHI(idx)						\
+		((CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) |		\
+		 (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
+
 #include <asm-generic/tlb.h>
 
 #endif /* __ASM_TLB_H */