diff options
| author | Jack Steiner <steiner@sgi.com> | 2009-07-27 09:35:07 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-04 16:18:01 +0200 |
| commit | 6c7184b77464261b7d55583a48accbd1350923a3 (patch) | |
| tree | 122e6b8d88cb4df1518ae2ea13841691de091bb2 /arch/x86/include/asm/uv | |
| parent | f1f029c7bfbf4ee1918b90a431ab823bed812504 (diff) | |
| download | blackbird-op-linux-6c7184b77464261b7d55583a48accbd1350923a3.tar.gz blackbird-op-linux-6c7184b77464261b7d55583a48accbd1350923a3.zip | |
x86, UV: Handle missing blade-local memory correctly
UV blades may not have any blade-local memory. Add a field
(nid) to the UV blade structure to indicates whether the node
has local memory. This is needed by the GRU driver (pushed
separately).
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
LKML-Reference: <20090727143507.GA7006@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/uv')
| -rw-r--r-- | arch/x86/include/asm/uv/uv_hub.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h index 341070f7ad5c..a6dde059e02e 100644 --- a/arch/x86/include/asm/uv/uv_hub.h +++ b/arch/x86/include/asm/uv/uv_hub.h @@ -327,6 +327,7 @@ struct uv_blade_info { unsigned short nr_possible_cpus; unsigned short nr_online_cpus; unsigned short pnode; + short memory_nid; }; extern struct uv_blade_info *uv_blade_info; extern short *uv_node_to_blade; @@ -363,6 +364,12 @@ static inline int uv_blade_to_pnode(int bid) return uv_blade_info[bid].pnode; } +/* Nid of memory node on blade. -1 if no blade-local memory */ +static inline int uv_blade_to_memory_nid(int bid) +{ + return uv_blade_info[bid].memory_nid; +} + /* Determine the number of possible cpus on a blade */ static inline int uv_blade_nr_possible_cpus(int bid) { |
