| 49,10 → 49,13 |
|---|
| #define FRAME2ADDR(zone, frame) ((zone)->base + ((frame) - (zone)->frames) * FRAME_SIZE) |
| #define ADDR2FRAME(zone, addr) (&((zone)->frames[((addr) - (zone)->base) / FRAME_SIZE])) |
| #define FRAME_INDEX(zone, frame) ((index_t)((frame) - (zone)->frames)) |
| #define FRAME_INDEX_ABS(zone, frame) (((index_t)((frame) - (zone)->frames)) + (zone)->base_index) |
| #define FRAME_INDEX_VALID(zone, index) (((index) >= 0) && ((index) < ((zone)->free_count + (zone)->busy_count))) |
| #define IS_BUDDY_ORDER_OK(index, order) ((~(((__native) -1) << (order)) & (index)) == 0) |
| #define IS_BUDDY_LEFT_BLOCK(zone, frame) (((FRAME_INDEX((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0) |
| #define IS_BUDDY_RIGHT_BLOCK(zone, frame) (((FRAME_INDEX((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1) |
| #define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame) (((FRAME_INDEX_ABS((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0) |
| #define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame) (((FRAME_INDEX_ABS((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1) |
| |
| #define ZONE_BLACKLIST_SIZE 4 |
| |
| 61,6 → 64,7 |
|---|
| |
| SPINLOCK_DECLARE(lock); /**< this lock protects everything below */ |
| __address base; /**< physical address of the first frame in the frames array */ |
| index_t base_index; /**< frame index offset of the zone base */ |
| frame_t *frames; /**< array of frame_t structures in this zone */ |
| count_t free_count; /**< number of free frame_t structures */ |
| count_t busy_count; /**< number of busy frame_t structures */ |