diff --git a/include/asm-ppc64/machdep.h b/include/asm-ppc64/machdep.h
new file mode 100644
index 0000000..5d3cd9d
--- /dev/null
+++ b/include/asm-ppc64/machdep.h
@@ -0,0 +1,185 @@
+#ifdef __KERNEL__
+#ifndef _PPC64_MACHDEP_H
+#define _PPC64_MACHDEP_H
+
+/*
+ * 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/seq_file.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/setup.h>
+
+struct pt_regs;
+struct pci_bus;	
+struct device_node;
+struct iommu_table;
+struct rtc_time;
+struct file;
+
+#ifdef CONFIG_SMP
+struct smp_ops_t {
+	void  (*message_pass)(int target, int msg);
+	int   (*probe)(void);
+	void  (*kick_cpu)(int nr);
+	void  (*setup_cpu)(int nr);
+	void  (*take_timebase)(void);
+	void  (*give_timebase)(void);
+	int   (*cpu_enable)(unsigned int nr);
+	int   (*cpu_disable)(void);
+	void  (*cpu_die)(unsigned int nr);
+	int   (*cpu_bootable)(unsigned int nr);
+};
+#endif
+
+struct machdep_calls {
+	void            (*hpte_invalidate)(unsigned long slot,
+					   unsigned long va,
+					   int large,
+					   int local);
+	long		(*hpte_updatepp)(unsigned long slot, 
+					 unsigned long newpp, 
+					 unsigned long va,
+					 int large,
+					 int local);
+	void            (*hpte_updateboltedpp)(unsigned long newpp, 
+					       unsigned long ea);
+	long		(*hpte_insert)(unsigned long hpte_group,
+				       unsigned long va,
+				       unsigned long prpn,
+				       int secondary, 
+				       unsigned long hpteflags, 
+				       int bolted,
+				       int large);
+	long		(*hpte_remove)(unsigned long hpte_group);
+	void		(*flush_hash_range)(unsigned long context,
+					    unsigned long number,
+					    int local);
+	/* special for kexec, to be called in real mode, linar mapping is
+	 * destroyed as well */
+	void		(*hpte_clear_all)(void);
+
+	void		(*tce_build)(struct iommu_table * tbl,
+				     long index,
+				     long npages,
+				     unsigned long uaddr,
+				     enum dma_data_direction direction);
+	void		(*tce_free)(struct iommu_table *tbl,
+				    long index,
+				    long npages);
+	void		(*tce_flush)(struct iommu_table *tbl);
+	void		(*iommu_dev_setup)(struct pci_dev *dev);
+	void		(*iommu_bus_setup)(struct pci_bus *bus);
+
+	int		(*probe)(int platform);
+	void		(*setup_arch)(void);
+	void		(*init_early)(void);
+	/* Optional, may be NULL. */
+	void		(*get_cpuinfo)(struct seq_file *m);
+
+	void		(*init_IRQ)(void);
+	int		(*get_irq)(struct pt_regs *);
+
+	/* PCI stuff */
+	void		(*pcibios_fixup)(void);
+
+	void		(*restart)(char *cmd);
+	void		(*power_off)(void);
+	void		(*halt)(void);
+	void		(*panic)(char *str);
+	void		(*cpu_die)(void);
+
+	int		(*set_rtc_time)(struct rtc_time *);
+	void		(*get_rtc_time)(struct rtc_time *);
+	void		(*get_boot_time)(struct rtc_time *);
+
+	void		(*calibrate_decr)(void);
+
+	void		(*progress)(char *, unsigned short);
+
+	/* Debug interface.  Low level I/O to some terminal device */
+	void		(*udbg_putc)(unsigned char c);
+	unsigned char	(*udbg_getc)(void);
+	int		(*udbg_getc_poll)(void);
+
+	/* Interface for platform error logging */
+	void 		(*log_error)(char *buf, unsigned int err_type, int fatal);
+
+	ssize_t		(*nvram_write)(char *buf, size_t count, loff_t *index);
+	ssize_t		(*nvram_read)(char *buf, size_t count, loff_t *index);	
+	ssize_t		(*nvram_size)(void);		
+	int		(*nvram_sync)(void);
+
+	/* Exception handlers */
+	void		(*system_reset_exception)(struct pt_regs *regs);
+	int 		(*machine_check_exception)(struct pt_regs *regs);
+
+	/* Motherboard/chipset features. This is a kind of general purpose
+	 * hook used to control some machine specific features (like reset
+	 * lines, chip power control, etc...).
+	 */
+	long	 	(*feature_call)(unsigned int feature, ...);
+
+	/* Check availability of legacy devices like i8042 */
+	int 		(*check_legacy_ioport)(unsigned int baseport);
+
+	/* Get legacy PCI/IDE interrupt mapping */ 
+	int		(*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
+	
+	/* Get access protection for /dev/mem */
+	pgprot_t	(*phys_mem_access_prot)(struct file *file,
+						unsigned long offset,
+						unsigned long size,
+						pgprot_t vma_prot);
+
+};
+
+extern struct machdep_calls ppc_md;
+extern char cmd_line[COMMAND_LINE_SIZE];
+
+#ifdef CONFIG_PPC_PMAC
+/*
+ * Power macintoshes have either a CUDA, PMU or SMU controlling
+ * system reset, power, NVRAM, RTC.
+ */
+typedef enum sys_ctrler_kind {
+	SYS_CTRLER_UNKNOWN = 0,
+	SYS_CTRLER_CUDA = 1,
+	SYS_CTRLER_PMU = 2,
+	SYS_CTRLER_SMU = 3,
+} sys_ctrler_t;
+extern sys_ctrler_t sys_ctrler;
+
+#endif /* CONFIG_PPC_PMAC */
+
+
+
+/* Functions to produce codes on the leds.
+ * The SRC code should be unique for the message category and should
+ * be limited to the lower 24 bits (the upper 8 are set by these funcs),
+ * and (for boot & dump) should be sorted numerically in the order
+ * the events occur.
+ */
+/* Print a boot progress message. */
+void ppc64_boot_msg(unsigned int src, const char *msg);
+/* Print a termination message (print only -- does not stop the kernel) */
+void ppc64_terminate_msg(unsigned int src, const char *msg);
+/* Print something that needs attention (device error, etc) */
+void ppc64_attention_msg(unsigned int src, const char *msg);
+/* Print a dump progress message. */
+void ppc64_dump_msg(unsigned int src, const char *msg);
+
+static inline void log_error(char *buf, unsigned int err_type, int fatal)
+{
+	if (ppc_md.log_error)
+		ppc_md.log_error(buf, err_type, fatal);
+}
+
+#endif /* _PPC64_MACHDEP_H */
+#endif /* __KERNEL__ */