#ifndef _PPC64_LMB_H
  #define _PPC64_LMB_H

  #ifdef __KERNEL__

  
  /*
   * Definitions for talking to the Open Firmware PROM on
   * Power Macintosh computers.
   *
   * Copyright (C) 2001 Peter Bergner, IBM Corp.
   *
   * 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/init.h>
  #include <asm/prom.h>
  
  #define MAX_LMB_REGIONS 128

  struct lmb_property {
  	unsigned long base;
  	unsigned long size;
  };
  
  struct lmb_region {
  	unsigned long cnt;
  	unsigned long size;
  	struct lmb_property region[MAX_LMB_REGIONS+1];
  };
  
  struct lmb {
  	unsigned long debug;
  	unsigned long rmo_size;
  	struct lmb_region memory;
  	struct lmb_region reserved;
  };
  
  extern struct lmb lmb;
  
  extern void __init lmb_init(void);
  extern void __init lmb_analyze(void);

  extern long __init lmb_add(unsigned long base, unsigned long size);
  extern long __init lmb_reserve(unsigned long base, unsigned long size);
  extern unsigned long __init lmb_alloc(unsigned long size, unsigned long align);
  extern unsigned long __init lmb_alloc_base(unsigned long size,
  		unsigned long align, unsigned long max_addr);
  extern unsigned long __init __lmb_alloc_base(unsigned long size,
  		unsigned long align, unsigned long max_addr);

  extern unsigned long __init lmb_phys_mem_size(void);
  extern unsigned long __init lmb_end_of_DRAM(void);

  extern void __init lmb_enforce_memory_limit(unsigned long memory_limit);

  
  extern void lmb_dump_all(void);

  static inline unsigned long
  lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
  {
  	return type->region[region_nr].size;
  }
  static inline unsigned long
  lmb_size_pages(struct lmb_region *type, unsigned long region_nr)
  {
  	return lmb_size_bytes(type, region_nr) >> PAGE_SHIFT;
  }
  static inline unsigned long
  lmb_start_pfn(struct lmb_region *type, unsigned long region_nr)
  {
  	return type->region[region_nr].base >> PAGE_SHIFT;
  }
  static inline unsigned long
  lmb_end_pfn(struct lmb_region *type, unsigned long region_nr)
  {
  	return lmb_start_pfn(type, region_nr) +
  	       lmb_size_pages(type, region_nr);
  }

  #endif /* __KERNEL__ */

  #endif /* _PPC64_LMB_H */