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typedef struct
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typedef struct
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{
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{
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  link_t   link;
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  addr_t   base;
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  size_t   size;
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  addr_t   pte[0];
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}mmap_t;
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typedef struct
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{
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  link_t buddy_link;        /**< link to the next free block inside one  order */
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  link_t buddy_link;        /**< link to the next free block inside one  order */
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  count_t refcount;         /**< tracking of shared frames  */
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  u16_t   refcount;           /**< tracking of shared frames  */
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  u32_t buddy_order;        /**< buddy system block order */
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  u16_t   buddy_order;        /**< buddy system block order */
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  void *parent;             /**< If allocated by slab, this points there */
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  void *parent;             /**< If allocated by slab, this points there */
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} frame_t;
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} frame_t;
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typedef struct
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typedef struct {
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{
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  SPINLOCK_DECLARE(lock);   /**< this lock protects everything below */
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  SPINLOCK_DECLARE(lock);   /**< this lock protects everything below */
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  pfn_t base;               /**< frame_no of the first frame in the frames array */
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  pfn_t base;               /**< frame_no of the first frame in the frames array */
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  count_t count;            /**< Size of zone */
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  count_t count;            /**< Size of zone */
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#define PAGE_SIZE    4096
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#define FRAME_WIDTH  12
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#define PAGE_SIZE    4096
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#define BUDDY_SYSTEM_INNER_BLOCK  0xff
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#define PAGE_WIDTH     12
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# define PA2KA(x) (((addr_t) (x)) + OS_BASE)
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# define PA2KA(x) (((addr_t) (x)) + OS_BASE)
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# define KA2PA(x) (((addr_t) (x)) - OS_BASE)
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# define KA2PA(x) (((addr_t) (x)) - OS_BASE)
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static inline count_t SIZE2FRAMES(size_t size)
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static inline count_t SIZE2FRAMES(size_t size)
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{
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{
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	if (!size)
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	if (!size)
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		return 0;
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		return 0;
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  return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;
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  return (count_t) ((size - 1) >> PAGE_WIDTH) + 1;
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}
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}
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static inline addr_t PFN2ADDR(pfn_t frame)
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static inline addr_t PFN2ADDR(pfn_t frame)
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{
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{
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  return (addr_t) (frame << FRAME_WIDTH);
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  return (addr_t) (frame << PAGE_WIDTH);
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}
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}
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static inline pfn_t ADDR2PFN(addr_t addr)
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static inline pfn_t ADDR2PFN(addr_t addr)
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{
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	return (pfn_t) (addr >> FRAME_WIDTH);
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{
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};
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    return (pfn_t) (addr >> PAGE_WIDTH);
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void init_mm();
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};
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void* __fastcall frame_get_parent(pfn_t pfn);
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void  __fastcall frame_set_parent(pfn_t pfn, void *data);
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void init_mm();
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void init_pg_slab();
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void frame_free(pfn_t frame);
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void* __fastcall frame_get_parent(pfn_t pfn);
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void  __fastcall frame_set_parent(pfn_t pfn, void *data);
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