kernel/power/tuxonice_pagedir.h

   1 /*
   2  * kernel/power/tuxonice_pagedir.h
   3  *
   4  * Copyright (C) 2006-2010 Nigel Cunningham (nigel at tuxonice net)
   5  *
   6  * This file is released under the GPLv2.
   7  *
   8  * Declarations for routines for handling pagesets.
   9  */
  10
  11 #ifndef KERNEL_POWER_PAGEDIR_H
  12 #define KERNEL_POWER_PAGEDIR_H
  13
  14 /* Pagedir
  15  *
  16  * Contains the metadata for a set of pages saved in the image.
  17  */
  18
  19 struct pagedir {
  20         int id;
  21         unsigned long size;
  22 #ifdef CONFIG_HIGHMEM
  23         unsigned long size_high;
  24 #endif
  25 };
  26
  27 #ifdef CONFIG_HIGHMEM
  28 #define get_highmem_size(pagedir) (pagedir.size_high)
  29 #define set_highmem_size(pagedir, sz) do { pagedir.size_high = sz; } while (0)
  30 #define inc_highmem_size(pagedir) do { pagedir.size_high++; } while (0)
  31 #define get_lowmem_size(pagedir) (pagedir.size - pagedir.size_high)
  32 #else
  33 #define get_highmem_size(pagedir) (0)
  34 #define set_highmem_size(pagedir, sz) do { } while (0)
  35 #define inc_highmem_size(pagedir) do { } while (0)
  36 #define get_lowmem_size(pagedir) (pagedir.size)
  37 #endif
  38
  39 extern struct pagedir pagedir1, pagedir2;
  40
  41 extern void toi_copy_pageset1(void);
  42
  43 extern int toi_get_pageset1_load_addresses(void);
  44
  45 extern unsigned long __toi_get_nonconflicting_page(void);
  46 struct page *___toi_get_nonconflicting_page(int can_be_highmem);
  47
  48 extern void toi_reset_alt_image_pageset2_pfn(void);
  49 extern int add_boot_kernel_data_pbe(void);
  50 #endif