include/asm-ppc64/lmb.h

   1 #ifndef _PPC64_LMB_H
   2 #define _PPC64_LMB_H
   3
   4 /*
   5  * Definitions for talking to the Open Firmware PROM on
   6  * Power Macintosh computers.
   7  *
   8  * Copyright (C) 2001 Peter Bergner, IBM Corp.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version
  13  * 2 of the License, or (at your option) any later version.
  14  */
  15
  16 #include <linux/init.h>
  17 #include <asm/prom.h>
  18
  19 #define MAX_LMB_REGIONS 128
  20
  21 #define LMB_ALLOC_ANYWHERE      0
  22
  23 struct lmb_property {
  24         unsigned long base;
  25         unsigned long physbase;
  26         unsigned long size;
  27 };
  28
  29 struct lmb_region {
  30         unsigned long cnt;
  31         unsigned long size;
  32         struct lmb_property region[MAX_LMB_REGIONS+1];
  33 };
  34
  35 struct lmb {
  36         unsigned long debug;
  37         unsigned long rmo_size;
  38         struct lmb_region memory;
  39         struct lmb_region reserved;
  40 };
  41
  42 extern struct lmb lmb;
  43
  44 extern void __init lmb_init(void);
  45 extern void __init lmb_analyze(void);
  46 extern long __init lmb_add(unsigned long, unsigned long);
  47 extern long __init lmb_reserve(unsigned long, unsigned long);
  48 extern unsigned long __init lmb_alloc(unsigned long, unsigned long);
  49 extern unsigned long __init lmb_alloc_base(unsigned long, unsigned long,
  50                                            unsigned long);
  51 extern unsigned long __init lmb_phys_mem_size(void);
  52 extern unsigned long __init lmb_end_of_DRAM(void);
  53 extern unsigned long __init lmb_abs_to_phys(unsigned long);
  54 extern void __init lmb_enforce_memory_limit(void);
  55
  56 extern void lmb_dump_all(void);
  57
  58 extern unsigned long io_hole_start;
  59
  60 #endif /* _PPC64_LMB_H */