This is especially true of POWER9 where memory between chips is
discontiguous.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4940917..c4b4c55 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -580,7 +580,7 @@ config ARCH_SPARSEMEM_ENABLE
config ARCH_SPARSEMEM_DEFAULT
def_bool y
- depends on (SMP && PPC_PSERIES) || PPC_PS3
+ depends on (SMP && PPC_PSERIES) || PPC_PS3 || PPC_POWERNV
config SYS_SUPPORTS_HUGETLBFS
bool
