From: Aneesh Kumar K.V Date: Fri, 29 Apr 2016 13:26:32 +0000 (+1000) Subject: powerpc/mm/radix: Use firmware feature to enable Radix MMU X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=17a3dd2f5fc75fc12d0a2ebf05327cf965bdf84b;p=deliverable%2Flinux.git powerpc/mm/radix: Use firmware feature to enable Radix MMU We use the existing "ibm,pa-features" device-tree property to enable Radix MMU mode. This means we default to hash mode unless firmware tells us it's OK to start using Radix mode. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 1b082c729c29..d924cd60fc8e 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -166,6 +166,7 @@ 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,