Subject: [PATCH V2 68/68] powerpc/mm/radix: Use firmware feature to disable radix

From: "Aneesh Kumar K.V" <[email-masked]>
Date: Sat, 9 Apr 2016 11:44:04 +0530

We can depend on ibm,pa-features to enable/disable radix. This gives us
a nice way to test p9 hash config, by changing device tree property.

Signed-off-by: Aneesh Kumar K.V <[email-masked]>
---
 arch/powerpc/kernel/prom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 7030b035905d..a4d1f44364b8 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -165,6 +165,7 @@ static struct ibm_pa_feature {
 	 * which is 0 if the kernel doesn't support TM.
 	 */
 	{CPU_FTR_TM_COMP, 0, 0,		22, 0, 0},
+	{0, MMU_FTR_RADIX, 0,		40, 0, 0},
 };
 
 static void __init scan_features(unsigned long node, const unsigned char *ftrs,
-- 
2.5.0