include/linux/bootmem.h

   1 #ifndef _LINUX_BOOTMEM_H
   2 #define _LINUX_BOOTMEM_H
   3
   4 #include <linux/config.h>
   5 #include <asm/pgtable.h>
   6 #include <asm/dma.h>
   7
   8 /*
   9  *  simple boot-time physical memory area allocator.
  10  */
  11
  12 extern unsigned long max_low_pfn;
  13
  14 extern unsigned long __init init_bootmem (unsigned long addr, unsigned long memend);
  15 extern void __init reserve_bootmem (unsigned long addr, unsigned long size);
  16 extern void __init free_bootmem (unsigned long addr, unsigned long size);
  17 extern void * __init __alloc_bootmem (unsigned long size, unsigned long align, unsigned long goal);
  18 #define alloc_bootmem(x) \
  19         __alloc_bootmem((x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
  20 #define alloc_bootmem_pages(x) \
  21         __alloc_bootmem((x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
  22 #define alloc_bootmem_low_pages(x) \
  23         __alloc_bootmem((x), PAGE_SIZE, 0)
  24 extern unsigned long __init free_all_bootmem (void);
  25
  26 #endif /* _LINUX_BOOTMEM_H */
  27
  28
  29