From 7b3912f4223541c5108565d4bad28928e3b628f9 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 5 Apr 2017 16:10:48 +1000 Subject: [PATCH] powerpc: Make sparsemem the default on 64-bit Book3S Make sparsemem the default on all 64-bit Book3S platforms. It already is for pseries and ps3, and we need to enable it for powernv because on POWER9 memory between chips is discontiguous. For the other platforms sparsemem should work fine, though it might add a small amount of overhead. We can always force FLATMEM in the defconfigs if necessary. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman --- arch/powerpc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 45724923a69c..9ff731f50a29 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -586,7 +586,7 @@ config ARCH_SPARSEMEM_ENABLE config ARCH_SPARSEMEM_DEFAULT def_bool y - depends on (SMP && PPC_PSERIES) || PPC_PS3 + depends on PPC_BOOK3S_64 config SYS_SUPPORTS_HUGETLBFS bool -- 2.20.1