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authorAndy Whitcroft <apw@shadowen.org>2005-06-23 00:08:02 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-23 09:45:05 -0700
commit74b30be2e183bd9a12d0350698996e3d1969f290 (patch)
tree4add891144d4f0122794ce4c7befa3db8cdb3b68 /arch/ppc64
parent510f8fa7ba18320d408dd3093663e58f5664f2f0 (diff)
downloadop-kernel-dev-74b30be2e183bd9a12d0350698996e3d1969f290.zip
op-kernel-dev-74b30be2e183bd9a12d0350698996e3d1969f290.tar.gz
[PATCH] ppc64: add memory present
Provide hooks for PPC64 to allow memory models to be informed of installed memory areas. This allows SPARSEMEM to instantiate mem_map for the populated areas. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Martin Bligh <mbligh@aracnet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/Kconfig4
-rw-r--r--arch/ppc64/mm/numa.c3
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index 3c8bfd0..c92d48f 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -212,8 +212,8 @@ config ARCH_FLATMEM_ENABLE
source "mm/Kconfig"
config HAVE_ARCH_EARLY_PFN_TO_NID
- bool
- default y
+ def_bool y
+ depends on NEED_MULTIPLE_NODES
# Some NUMA nodes have memory ranges that span
# other nodes. Even though a pfn is valid and
diff --git a/arch/ppc64/mm/numa.c b/arch/ppc64/mm/numa.c
index ea862ec..cafd91a 100644
--- a/arch/ppc64/mm/numa.c
+++ b/arch/ppc64/mm/numa.c
@@ -440,6 +440,8 @@ new_range:
for (i = start ; i < (start+size); i += MEMORY_INCREMENT)
numa_memory_lookup_table[i >> MEMORY_INCREMENT_SHIFT] =
numa_domain;
+ memory_present(numa_domain, start >> PAGE_SHIFT,
+ (start + size) >> PAGE_SHIFT);
if (--ranges)
goto new_range;
@@ -481,6 +483,7 @@ static void __init setup_nonnuma(void)
for (i = 0 ; i < top_of_ram; i += MEMORY_INCREMENT)
numa_memory_lookup_table[i >> MEMORY_INCREMENT_SHIFT] = 0;
+ memory_present(0, 0, init_node_data[0].node_end_pfn);
}
static void __init dump_numa_topology(void)
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