1 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index 0458a9aaba9d..74f8050518d6 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -37,6 +37,16 @@ _GLOBAL(do_load_up_transact_altivec)
 #endif
 
 /*
+ * Enable use of VMX/Altivec for the caller.
+ */
+_GLOBAL(vec_enable)
+        mfmsr   r3
+        oris    r3,r3,MSR_VEC@h
+        MTMSRD(r3)
+        isync
+        blr
+
+/*
  * Load state from memory into VMX registers including VSCR.
  * Assumes the caller has enabled VMX in the MSR.
  */