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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 <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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@ -166,6 +166,7 @@ static struct ibm_pa_feature {
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* which is 0 if the kernel doesn't support TM.
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*/
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{CPU_FTR_TM_COMP, 0, 0, 22, 0, 0},
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{0, MMU_FTR_RADIX, 0, 40, 0, 0},
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};
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static void __init scan_features(unsigned long node, const unsigned char *ftrs,
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