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/** Currently there is no equivalent zone flags
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/** Currently there is no equivalent zone flags
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    for frame flags */
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    for frame flags */
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#define FRAME_TO_ZONE_FLAGS(frame_flags)  0
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#define FRAME_TO_ZONE_FLAGS(frame_flags)  0
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typedef struct {
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typedef struct {
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    count_t refcount;     /**< Tracking of shared frames */
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    size_t refcount;     /**< Tracking of shared frames */
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    uint8_t buddy_order;  /**< Buddy system block order */
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    uint8_t buddy_order;  /**< Buddy system block order */
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    link_t buddy_link;    /**< Link to the next free block inside
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    link_t buddy_link;    /**< Link to the next free block inside
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                               one order */
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                               one 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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    pfn_t base;                    /**< Frame_no of the first frame
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    pfn_t base;                    /**< Frame_no of the first frame
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                                        in the frames array */
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                                        in the frames array */
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    count_t count;                 /**< Size of zone */
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    size_t count;                 /**< Size of zone */
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    count_t free_count;            /**< Number of free frame_t
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    size_t free_count;            /**< Number of free frame_t
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                                        structures */
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                                        structures */
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    count_t busy_count;            /**< Number of busy frame_t
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    size_t busy_count;            /**< Number of busy frame_t
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                                        structures */
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                                        structures */
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    zone_flags_t flags;            /**< Type of the zone */
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    zone_flags_t flags;            /**< Type of the zone */
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    frame_t *frames;               /**< Array of frame_t structures
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    frame_t *frames;               /**< Array of frame_t structures
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                                        in this zone */
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                                        in this zone */
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 * The zoneinfo.lock must be locked when accessing zoneinfo structure.
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 * The zoneinfo.lock must be locked when accessing zoneinfo structure.
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 * Some of the attributes in zone_t structures are 'read-only'
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 * Some of the attributes in zone_t structures are 'read-only'
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 */
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 */
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typedef struct {
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typedef struct {
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    count_t count;
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    size_t count;
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    zone_t info[ZONES_MAX];
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    zone_t info[ZONES_MAX];
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} zones_t;
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} zones_t;
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extern zones_t zones;
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extern zones_t zones;
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static inline pfn_t ADDR2PFN(uintptr_t addr)
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static inline pfn_t ADDR2PFN(uintptr_t addr)
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{
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{
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    return (pfn_t) (addr >> FRAME_WIDTH);
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    return (pfn_t) (addr >> FRAME_WIDTH);
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}
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}
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static inline count_t SIZE2FRAMES(size_t size)
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static inline size_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 (size_t) ((size - 1) >> FRAME_WIDTH) + 1;
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}
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}
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static inline size_t FRAMES2SIZE(count_t frames)
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static inline size_t FRAMES2SIZE(size_t frames)
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{
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{
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    return (size_t) (frames << FRAME_WIDTH);
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    return (size_t) (frames << FRAME_WIDTH);
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}
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}
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static inline bool zone_flags_available(zone_flags_t flags)
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static inline bool zone_flags_available(zone_flags_t flags)
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#define frame_alloc(order, flags) \
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#define frame_alloc(order, flags) \
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    frame_alloc_generic(order, flags, NULL)
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    frame_alloc_generic(order, flags, NULL)
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extern void frame_init(void);
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extern void frame_init(void);
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extern void *frame_alloc_generic(uint8_t, frame_flags_t, count_t *);
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extern void *frame_alloc_generic(uint8_t, frame_flags_t, size_t *);
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extern void frame_free(uintptr_t);
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extern void frame_free(uintptr_t);
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extern void frame_reference_add(pfn_t);
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extern void frame_reference_add(pfn_t);
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extern count_t find_zone(pfn_t frame, count_t count, count_t hint);
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extern size_t find_zone(pfn_t frame, size_t count, size_t hint);
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extern count_t zone_create(pfn_t, count_t, pfn_t, zone_flags_t);
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extern size_t zone_create(pfn_t, size_t, pfn_t, zone_flags_t);
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extern void *frame_get_parent(pfn_t, count_t);
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extern void *frame_get_parent(pfn_t, size_t);
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extern void frame_set_parent(pfn_t, void *, count_t);
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extern void frame_set_parent(pfn_t, void *, size_t);
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extern void frame_mark_unavailable(pfn_t, count_t);
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extern void frame_mark_unavailable(pfn_t, size_t);
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extern uintptr_t zone_conf_size(count_t);
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extern uintptr_t zone_conf_size(size_t);
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extern bool zone_merge(count_t, count_t);
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extern bool zone_merge(size_t, size_t);
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extern void zone_merge_all(void);
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extern void zone_merge_all(void);
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extern uint64_t zone_total_size(void);
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extern uint64_t zone_total_size(void);
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/*
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/*
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 * Console functions
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 * Console functions
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 */
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 */
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extern void zone_print_list(void);
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extern void zone_print_list(void);
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extern void zone_print_one(count_t);
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extern void zone_print_one(size_t);
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */