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-rw-r--r--arch/powerpc/include/asm/reg.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 11a81bd5dabd..52ed654d01ba 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -75,6 +75,14 @@
#define MSR_HV 0
#endif
+/*
+ * To be used in shared book E/book S, this avoids needing to worry about
+ * book S/book E in shared code
+ */
+#ifndef MSR_SPE
+#define MSR_SPE 0
+#endif
+
#define MSR_VEC __MASK(MSR_VEC_LG) /* Enable AltiVec */
#define MSR_VSX __MASK(MSR_VSX_LG) /* Enable VSX */
#define MSR_POW __MASK(MSR_POW_LG) /* Enable Power Management */