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#include <mm/buddy.h>
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#include <mm/buddy.h>
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#include <mm/slab.h>
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#include <mm/slab.h>
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#define ONE_FRAME   0
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#define ONE_FRAME   0
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#define FRAME_KA        1   /* skip frames conflicting with user address space */
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#define FRAME_KA        0x1 /* skip frames conflicting with user address space */
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#define FRAME_PANIC     2   /* panic on failure */
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#define FRAME_PANIC     0x2 /* panic on failure */
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#define FRAME_ATOMIC            4   /* do not panic and do not sleep on failure */
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#define FRAME_ATOMIC            0x4 /* do not panic and do not sleep on failure */
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#define FRAME_NO_RECLAIM        0x8     /* Do not start reclaiming when no free memory */
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#define FRAME_OK        0   /* frame_alloc return status */
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#define FRAME_OK        0   /* frame_alloc return status */
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#define FRAME_NO_MEMORY     1   /* frame_alloc return status */
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#define FRAME_NO_MEMORY     1   /* frame_alloc return status */
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#define FRAME_ERROR     2   /* frame_alloc return status */
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#define FRAME_ERROR     2   /* frame_alloc return status */
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struct frame {
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struct frame {
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    count_t refcount;   /**< tracking of shared frames  */
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    count_t refcount;   /**< tracking of shared frames  */
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    __u8 buddy_order;   /**< buddy system block order */
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    __u8 buddy_order;   /**< buddy system block order */
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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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    slab_slab_t *slab;      /**< If allocated by slab, this points there */
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    void *parent;           /**< If allocated by slab, this points there */
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};
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};
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struct region {
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struct region {
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    __address base;
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    __address base;
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    size_t size;
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    size_t size;
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extern void zone_attach(zone_t *zone);
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extern void zone_attach(zone_t *zone);
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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_initialize(frame_t *frame, zone_t *zone);
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extern void frame_initialize(frame_t *frame, zone_t *zone);
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__address frame_alloc(int flags, __u8 order, int * status);
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__address frame_alloc(int flags, __u8 order, int * status, zone_t **pzone);
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extern void frame_free(__address addr);
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extern void frame_free(__address addr);
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zone_t * get_zone_by_frame(frame_t * frame);
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zone_t * get_zone_by_frame(frame_t * frame);
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/*
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/*
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link_t * zone_buddy_bisect(buddy_system_t *b, link_t * block);
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link_t * zone_buddy_bisect(buddy_system_t *b, link_t * block);
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link_t * zone_buddy_coalesce(buddy_system_t *b, link_t * buddy_l, link_t * buddy_r);
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link_t * zone_buddy_coalesce(buddy_system_t *b, link_t * buddy_l, link_t * buddy_r);
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void zone_buddy_set_order(buddy_system_t *b, link_t * block, __u8 order);
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void zone_buddy_set_order(buddy_system_t *b, link_t * block, __u8 order);
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__u8 zone_buddy_get_order(buddy_system_t *b, link_t * block);
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__u8 zone_buddy_get_order(buddy_system_t *b, link_t * block);
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void zone_buddy_mark_busy(buddy_system_t *b, link_t * block);
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void zone_buddy_mark_busy(buddy_system_t *b, link_t * block);
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extern frame_t * frame_addr2frame(__address addr);
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/*
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/*
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 * TODO: Implement the following functions.
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 * TODO: Implement the following functions.
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 */
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 */
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extern frame_t *frame_reference(frame_t *frame);
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extern frame_t *frame_reference(frame_t *frame);