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-rw-r--r--arch/mips/include/asm/mipsregs.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index fb2d17487ec2..98e9754a4b6b 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -1792,6 +1792,15 @@ __BUILD_SET_C0(brcm_cmt_ctrl)
__BUILD_SET_C0(brcm_config)
__BUILD_SET_C0(brcm_mode)
+/*
+ * Return low 10 bits of ebase.
+ * Note that under KVM (MIPSVZ) this returns vcpu id.
+ */
+static inline unsigned int get_ebase_cpunum(void)
+{
+ return read_c0_ebase() & 0x3ff;
+}
+
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_MIPSREGS_H */
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