[POWERPC] Add the thread_siblings files to sysfs

This adds the /sys/devices/system/cpu/*/topology/thread_siblings
files on powerpc.  These files are already available on other
architectures.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h
index 8f7ee16781a4..9fe7894ee035 100644
--- a/include/asm-powerpc/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -96,7 +96,13 @@ static inline void sysfs_remove_device_from_node(struct sys_device *dev,
 
 #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__ */