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Commit 17a3dd2f authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
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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: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent ab624762

arch/powerpc/kernel/prom.c

+1 −0
Original line number Diff line number Diff line
@@ -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,