diff --git a/include/asm-mips/mips_mt.h b/include/asm-mips/mips_mt.h
index 8045abc..ac79352 100644
--- a/include/asm-mips/mips_mt.h
+++ b/include/asm-mips/mips_mt.h
@@ -8,6 +8,12 @@
 
 #include <linux/cpumask.h>
 
+/*
+ * How many VPEs and TCs is Linux allowed to use?  0 means no limit.
+ */
+extern int tclimit;
+extern int vpelimit;
+
 extern cpumask_t mt_fpu_cpumask;
 extern unsigned long mt_fpemul_threshold;