1 files changed, 22 insertions, 0 deletions

diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
new file mode 100644
index 000000000000..e2077d343c33
--- /dev/null
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -0,0 +1,22 @@
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_X86_32
+# define X86_ALIGN .long
+#else
+# define X86_ALIGN .quad
+#endif
+
+#ifdef CONFIG_SMP
+        .macro LOCK_PREFIX
+1:      lock
+        .section .smp_locks,"a"
+        .align 4
+        X86_ALIGN 1b
+        .previous
+        .endm
+#else
+        .macro LOCK_PREFIX
+        .endm
+#endif
+
+#endif  /*  __ASSEMBLY__  */