[RFC 2/7] powerpc/mm: Enable support for ZONE_DEVICE on PPC_BOOK3S_64 platforms
From: Anshuman Khandual <hidden>
Date: 2016-05-03 06:30:25
Subsystem:
linux for powerpc (32-bit and 64-bit), memory management, memory management - core, the rest · Maintainers:
Madhavan Srinivasan, Andrew Morton, David Hildenbrand, Linus Torvalds
This enables support for the new ZONE_DEVCICE on PPC_BOOK3S_64 platforms which now accommodates device memory during memory hotplug operation. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Anshuman Khandual <redacted> --- arch/powerpc/Kconfig | 4 ++++ mm/Kconfig | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 7cd32c0..9ac5c6f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -1084,6 +1084,10 @@ endif config ARCH_RANDOM def_bool n +config ZONE_DEVICE + bool + default y if PPC_BOOK3S_64 + source "net/Kconfig" source "drivers/Kconfig"
diff --git a/mm/Kconfig b/mm/Kconfig
index 989f8f3..8ecd869 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig@@ -654,7 +654,7 @@ config ZONE_DEVICE depends on MEMORY_HOTPLUG depends on MEMORY_HOTREMOVE depends on SPARSEMEM_VMEMMAP - depends on X86_64 #arch_add_memory() comprehends device memory + depends on (X86_64 || PPC_BOOK3S_64) #arch_add_memory() comprehends device memory help Device memory hotplug support allows for establishing pmem,
--
1.8.3.1