sh: Support for multiple nodes.
This adds basic support for multiple nodes on SH machines.
This is primarily useful for boards with many different
memory blocks that are otherwise unused (SH7722/SH7785 URAM
and so forth).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 955a851..8c5b73a 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -293,6 +293,17 @@
For systems with an MMU that can afford to give up a page,
(the default value) say Y.
+config NUMA
+ bool "Non Uniform Memory Access (NUMA) Support"
+ depends on MMU && EXPERIMENTAL
+ default n
+ help
+ Some SH systems have many various memories scattered around
+ the address space, each with varying latencies. This enables
+ support for these blocks by binding them to nodes and allowing
+ memory policies to be used for prioritizing and controlling
+ allocation behaviour.
+
config NODES_SHIFT
int
default "1"
