Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / arch / x86 / include / asm / smp.h

diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index bc6f84e11d32600be4e34d55938cbba502600060..99fa8b47381e1c60f6cfe500e94ece362266157f 100644 (file)
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -17,10 +17,20 @@
 #endif
 #include <asm/thread_info.h>
 #include <asm/cpumask.h>
+#include <asm/cpufeature.h>
 
 extern int smp_num_siblings;
 extern unsigned int num_processors;
 
+static inline bool cpu_has_ht_siblings(void)
+{
+       bool has_siblings = false;
+#ifdef CONFIG_SMP
+       has_siblings = cpu_has_ht && smp_num_siblings > 1;
+#endif
+       return has_siblings;
+}
+
 DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map);
 DECLARE_PER_CPU(cpumask_var_t, cpu_core_map);
 /* cpus sharing the last level cache: */