[POWERPC] Add the thread topolgy to sysfs

[Stephen Rothwell]

This adds the /sys/devices/system/cpu/*/topology/thread_siblings
files.

Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
 include/asm-powerpc/topology.h |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

-- 
Cheers,
Stephen Rothwell                    sfr at canb.auug.org.au

diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h
index 8f7ee16..9fe7894 100644
--- a/include/asm-powerpc/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -96,7 +96,13 @@ static inline void sysfs_remove_device_f
 
 #ifdef CONFIG_SMP
 #include <asm/cputable.h>
-#define smt_capable() 		(cpu_has_feature(CPU_FTR_SMT))
+#define smt_capable()		(cpu_has_feature(CPU_FTR_SMT))
+
+#ifdef CONFIG_PPC64
+#include <asm/smp.h>
+
+#define topology_thread_siblings(cpu)	(cpu_sibling_map[cpu])
+#endif
 #endif
 
 #endif /* __KERNEL__ */
-- 
1.4.3.3