powerpc: Add VSX CPU feature

Add a VSX CPU feature.  Also add code to detect if VSX is available
from the device tree.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 2aefe2a4129a..87d83c56b31e 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -609,6 +609,10 @@ static struct feature_property {
         {"altivec", 0, CPU_FTR_ALTIVEC, PPC_FEATURE_HAS_ALTIVEC},
         {"ibm,vmx", 1, CPU_FTR_ALTIVEC, PPC_FEATURE_HAS_ALTIVEC},
 #endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_VSX
+        /* Yes, this _really_ is ibm,vmx == 2 to enable VSX */
+        {"ibm,vmx", 2, CPU_FTR_VSX, PPC_FEATURE_HAS_VSX},
+#endif /* CONFIG_VSX */
 #ifdef CONFIG_PPC64
         {"ibm,dfp", 1, 0, PPC_FEATURE_HAS_DFP},
         {"ibm,purr", 1, CPU_FTR_PURR, 0},