1 files changed, 44 insertions, 0 deletions

diff --git a/include/asm-um/processor-x86_64.h b/include/asm-um/processor-x86_64.h
new file mode 100644
index 000000000000..a1ae3a4cd938
--- /dev/null
+++ b/include/asm-um/processor-x86_64.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2003 PathScale, Inc.
+ *
+ * Licensed under the GPL
+ */
+
+#ifndef __UM_PROCESSOR_X86_64_H
+#define __UM_PROCESSOR_X86_64_H
+
+#include "asm/arch/user.h"
+
+struct arch_thread {
+};
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+extern inline void rep_nop(void)
+{
+        __asm__ __volatile__("rep;nop": : :"memory");
+}
+
+#define cpu_relax()   rep_nop()
+
+#define INIT_ARCH_THREAD { }
+
+#define current_text_addr() \
+        ({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
+
+#define ARCH_IS_STACKGROW(address) \
+        (address + 128 >= UPT_SP(&current->thread.regs.regs))
+
+#include "asm/processor-generic.h"
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only.  This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */