Rev 859 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 854 | serge | 1 | |
| 2 | { |
||
| 3 | link_t buddy_link; /**< link to the next free block inside one order */ |
||
| 4 | count_t refcount; /**< tracking of shared frames */ |
||
| 5 | u32_t buddy_order; /**< buddy system block order */ |
||
| 6 | void *parent; /**< If allocated by slab, this points there */ |
||
| 7 | } frame_t; |
||
| 8 | |||
| 9 | |||
| 10 | SPINLOCK_DECLARE(lock); /**< this lock protects everything below */ |
||
| 11 | pfn_t base; /**< frame_no of the first frame in the frames array */ |
||
| 12 | count_t count; /**< Size of zone */ |
||
| 13 | |||
| 14 | |||
| 15 | count_t free_count; /**< number of free frame_t structures */ |
||
| 16 | count_t busy_count; /**< number of busy frame_t structures */ |
||
| 17 | |||
| 18 | |||
| 19 | link_t order[21]; |
||
| 20 | |||
| 21 | |||
| 22 | } zone_t; |
||
| 23 | |||
| 24 | |||
| 25 | |||
| 26 | # define KA2PA(x) (((u32_t) (x)) - OS_BASE) |
||
| 27 | |||
| 28 | |||
| 29 | #define FRAME_WIDTH 12 |
||
| 30 | |||
| 31 | |||
| 32 | |||
| 33 | |||
| 34 | { |
||
| 35 | if (!size) |
||
| 36 | return 0; |
||
| 37 | return (count_t) ((size - 1) >> FRAME_WIDTH) + 1; |
||
| 38 | } |
||
| 39 | |||
| 40 | |||
| 41 | { |
||
| 42 | return (addr_t) (frame << FRAME_WIDTH); |
||
| 43 | } |
||
| 44 | |||
| 45 | |||
| 46 | { |
||
| 47 | return (pfn_t) (addr >> FRAME_WIDTH); |
||
| 48 | }; |
||
| 49 | |||
| 50 | |||
| 51 | |||
| 52 | |||
| 53 | |||
| 54 | |||
| 55 | pfn_t __stdcall alloc_pages(count_t count) __asm__ ("_alloc_pages") __attribute__ ((deprecated)); |
||
| 56 | |||
| 57 | |||
| 58 | void frame_free(pfn_t frame); |
||
| 59 |