#ifndef __UM_PROCESSOR_X86_64_H
#define __UM_PROCESSOR_X86_64_H
-#include "asm/arch/user.h"
+/* include faultinfo structure */
+#include "sysdep/faultinfo.h"
struct arch_thread {
+ unsigned long debugregs[8];
+ int debugregs_seq;
+ struct faultinfo faultinfo;
};
-#define INIT_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 { .debugregs = { [ 0 ... 7 ] = 0 }, \
+ .debugregs_seq = 0, \
+ .faultinfo = { 0, 0, 0 } }
+
+#include "asm/arch/user.h"
#define current_text_addr() \
({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })