diff --git a/include/asm-ppc64/ppcdebug.h b/include/asm-ppc64/ppcdebug.h
new file mode 100644
index 0000000..fd7f696
--- /dev/null
+++ b/include/asm-ppc64/ppcdebug.h
@@ -0,0 +1,108 @@
+#ifndef __PPCDEBUG_H
+#define __PPCDEBUG_H
+/********************************************************************
+ * Author: Adam Litke, IBM Corp
+ * (c) 2001
+ *
+ * This file contains definitions and macros for a runtime debugging
+ * system for ppc64 (This should also work on 32 bit with a few    
+ * adjustments.                                                   
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ ********************************************************************/
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <asm/udbg.h>
+#include <stdarg.h>
+
+#define PPCDBG_BITVAL(X)     ((1UL)<<((unsigned long)(X)))
+
+/* Defined below are the bit positions of various debug flags in the
+ * ppc64_debug_switch variable.
+ * -- When adding new values, please enter them into trace names below -- 
+ *
+ * Values 62 & 63 can be used to stress the hardware page table management
+ * code.  They must be set statically, any attempt to change them dynamically
+ * would be a very bad idea.
+ */
+#define PPCDBG_MMINIT        PPCDBG_BITVAL(0)
+#define PPCDBG_MM            PPCDBG_BITVAL(1)
+#define PPCDBG_SYS32         PPCDBG_BITVAL(2)
+#define PPCDBG_SYS32NI       PPCDBG_BITVAL(3)
+#define PPCDBG_SYS32X	     PPCDBG_BITVAL(4)
+#define PPCDBG_SYS32M	     PPCDBG_BITVAL(5)
+#define PPCDBG_SYS64         PPCDBG_BITVAL(6)
+#define PPCDBG_SYS64NI       PPCDBG_BITVAL(7)
+#define PPCDBG_SYS64X	     PPCDBG_BITVAL(8)
+#define PPCDBG_SIGNAL        PPCDBG_BITVAL(9)
+#define PPCDBG_SIGNALXMON    PPCDBG_BITVAL(10)
+#define PPCDBG_BINFMT32      PPCDBG_BITVAL(11)
+#define PPCDBG_BINFMT64      PPCDBG_BITVAL(12)
+#define PPCDBG_BINFMTXMON    PPCDBG_BITVAL(13)
+#define PPCDBG_BINFMT_32ADDR PPCDBG_BITVAL(14)
+#define PPCDBG_ALIGNFIXUP    PPCDBG_BITVAL(15)
+#define PPCDBG_TCEINIT       PPCDBG_BITVAL(16)
+#define PPCDBG_TCE           PPCDBG_BITVAL(17)
+#define PPCDBG_PHBINIT       PPCDBG_BITVAL(18)
+#define PPCDBG_SMP           PPCDBG_BITVAL(19)
+#define PPCDBG_BOOT          PPCDBG_BITVAL(20)
+#define PPCDBG_BUSWALK       PPCDBG_BITVAL(21)
+#define PPCDBG_PROM	     PPCDBG_BITVAL(22)
+#define PPCDBG_RTAS	     PPCDBG_BITVAL(23)
+#define PPCDBG_HTABSTRESS    PPCDBG_BITVAL(62)
+#define PPCDBG_HTABSIZE      PPCDBG_BITVAL(63)
+#define PPCDBG_NONE          (0UL)
+#define PPCDBG_ALL           (0xffffffffUL)
+
+/* The default initial value for the debug switch */
+#define PPC_DEBUG_DEFAULT    0 
+/* #define PPC_DEBUG_DEFAULT    PPCDBG_ALL        */
+
+#define PPCDBG_NUM_FLAGS     64
+
+extern u64 ppc64_debug_switch;
+
+#ifdef WANT_PPCDBG_TAB
+/* A table of debug switch names to allow name lookup in xmon 
+ * (and whoever else wants it.
+ */
+char *trace_names[PPCDBG_NUM_FLAGS] = {
+	/* Known debug names */
+	"mminit", 	"mm",
+	"syscall32", 	"syscall32_ni", "syscall32x",	"syscall32m",
+	"syscall64", 	"syscall64_ni", "syscall64x",
+	"signal",	"signal_xmon",
+	"binfmt32",	"binfmt64",	"binfmt_xmon",	"binfmt_32addr",
+	"alignfixup",   "tceinit",      "tce",          "phb_init",     
+	"smp",          "boot",         "buswalk",	"prom",
+	"rtas"
+};
+#else
+extern char *trace_names[64];
+#endif /* WANT_PPCDBG_TAB */
+
+#ifdef CONFIG_PPCDBG
+/* Macro to conditionally print debug based on debug_switch */
+#define PPCDBG(...) udbg_ppcdbg(__VA_ARGS__)
+
+/* Macro to conditionally call a debug routine based on debug_switch */
+#define PPCDBGCALL(FLAGS,FUNCTION) ifppcdebug(FLAGS) FUNCTION
+
+/* Macros to test for debug states */
+#define ifppcdebug(FLAGS) if (udbg_ifdebug(FLAGS))
+#define ppcdebugset(FLAGS) (udbg_ifdebug(FLAGS))
+#define PPCDBG_BINFMT (test_thread_flag(TIF_32BIT) ? PPCDBG_BINFMT32 : PPCDBG_BINFMT64)
+
+#else
+#define PPCDBG(...) do {;} while (0)
+#define PPCDBGCALL(FLAGS,FUNCTION) do {;} while (0)
+#define ifppcdebug(...) if (0)
+#define ppcdebugset(FLAGS) (0)
+#endif /* CONFIG_PPCDBG */
+
+#endif /*__PPCDEBUG_H */