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| author | Michael Ellerman <michael@ellerman.id.au> | 2011-04-10 20:42:05 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-27 14:18:35 +1000 |
| commit | e70606eb9beb683ce3991936267deab64ab56d95 (patch) | |
| tree | 76f6150ee5dda255c6ae47b7e6eff732973eda71 /arch/powerpc/mm | |
| parent | 69b123684b50040b0926eed1e02795dac8cb9587 (diff) | |
| download | linux-e70606eb9beb683ce3991936267deab64ab56d95.tar.bz2 | |
powerpc/numa: Look for ibm, associativity-reference-points at the root
If we don't find ibm,associativity-reference-points as a child of
/rtas, look for it at the root of the tree instead. We use this on
Book3E where we have no RTAS but still use the sPAPR conventions
for NUMA.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/numa.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 5ec1dad2a19d..e49b799b59a3 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -311,14 +311,13 @@ EXPORT_SYMBOL_GPL(of_node_to_nid); static int __init find_min_common_depth(void) { int depth; - struct device_node *rtas_root; struct device_node *chosen; + struct device_node *root; const char *vec5; - rtas_root = of_find_node_by_path("/rtas"); - - if (!rtas_root) - return -1; + root = of_find_node_by_path("/rtas"); + if (!root) + root = of_find_node_by_path("/"); /* * This property is a set of 32-bit integers, each representing @@ -332,7 +331,7 @@ static int __init find_min_common_depth(void) * NUMA boundary and the following are progressively less significant * boundaries. There can be more than one level of NUMA. */ - distance_ref_points = of_get_property(rtas_root, + distance_ref_points = of_get_property(root, "ibm,associativity-reference-points", &distance_ref_points_depth); @@ -376,11 +375,11 @@ static int __init find_min_common_depth(void) distance_ref_points_depth = MAX_DISTANCE_REF_POINTS; } - of_node_put(rtas_root); + of_node_put(root); return depth; err: - of_node_put(rtas_root); + of_node_put(root); return -1; } |