[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>
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 @@
#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__ */