From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com>
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 <aneesh.ku...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
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 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,
--
2.5.0
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