arm64: Kconfig: support for nodes spanning other nodes
Janghyuck Kim
janghyuck.kim at samsung.com
Thu Oct 29 02:19:50 EDT 2020
To support NUMA systems whose physical address layout is not continuous
on one node, nodes spanning other nodes feature is required.
Signed-off-by: Janghyuck Kim <janghyuck.kim at samsung.com>
---
arch/arm64/Kconfig | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 49b8d017cba6..18ff7ce9dd60 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1004,6 +1004,14 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
config HOLES_IN_ZONE
def_bool y
+# Some NUMA nodes have memory ranges that span
+# other nodes. Even though a pfn is valid and
+# between a node's start and end pfns, it may not
+# reside on that node. See memmap_init_zone()
+# for details.
+config NODES_SPAN_OTHER_NODES
+ depends on NUMA
+
source "kernel/Kconfig.hz"
config ARCH_SUPPORTS_DEBUG_PAGEALLOC
--
2.28.0
More information about the linux-arm-kernel
mailing list