[PATCH] powerpc: sparsemem should be the default on powernv
Subsystems:
linux for powerpc (32-bit and 64-bit), the rest
STALE3451d
3 messages,
2 authors,
2017-03-06 · open the first message on its own page
This is especially true of POWER9 where memory between chips is
discontiguous.
Signed-off-by: Benjamin Herrenschmidt <benh@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
Benjamin Herrenschmidt [off-list ref] writes:
quoted hunk
This is especially true of POWER9 where memory between chips is
discontiguous.
Signed-off-by: Benjamin Herrenschmidt <benh@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
Why don't we just make it default y for BOOK3S_64?
It's just the default after all, it can still be changed.
cheers
On Mon, 2017-03-06 at 20:41 +1100, Michael Ellerman wrote:
quoted
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
Why don't we just make it default y for BOOK3S_64?
It's just the default after all, it can still be changed.
No objection.
Cheers,
Ben.