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38 | #define FRAME_PANIC 2 /* panic on failure */ |
38 | #define FRAME_PANIC 2 /* panic on failure */ |
39 | 39 | ||
40 | struct frame_zone { |
40 | struct frame_zone { |
41 | link_t fz_link; /**< link to previous and next frame_zone */ |
41 | link_t fz_link; /**< link to previous and next frame_zone */ |
42 | 42 | ||
43 | spinlock_t lock; /**< this lock protexts everything below */ |
43 | spinlock_t lock; /**< this lock protects everything below */ |
- | 44 | __address base; /**< physical address of the first frame in the frames array */ |
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- | 45 | frame_t *frames; /**< array of frame_t structures in this zone */ |
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44 | link_t free_head; /**< list of free frames */ |
46 | link_t free_head; /**< list of free frame_t structures */ |
45 | link_t busy_head; /**< list of busy frames */ |
47 | link_t busy_head; /**< list of busy frame_t structures */ |
46 | count_t free_count; /**< frames in free list */ |
48 | count_t free_count; /**< number of frame_t structures in free list */ |
47 | count_t busy_count; /**< frames in busy list */ |
49 | count_t busy_count; /**< number of frame_t structures in busy list */ |
48 | frame_t *frames; /**< array of frames in this zone */ |
- | |
49 | int flags; |
50 | int flags; |
50 | }; |
51 | }; |
51 | 52 | ||
52 | struct frame { |
53 | struct frame { |
53 | count_t refcount; /**< when > 0, the frame is in busy list, otherwise the frame is in free list */ |
54 | count_t refcount; /**< when > 0, the frame is in busy list, otherwise the frame is in free list */ |
Line 73... | Line 74... | ||
73 | __address frame_alloc(int flags); |
74 | __address frame_alloc(int flags); |
74 | extern void frame_free(__address addr); |
75 | extern void frame_free(__address addr); |
75 | extern void frame_not_free(__address addr); |
76 | extern void frame_not_free(__address addr); |
76 | extern void frame_region_not_free(__address start, __address stop); |
77 | extern void frame_region_not_free(__address start, __address stop); |
77 | 78 | ||
- | 79 | extern frame_zone_t *frame_zone_create(); |
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78 | #endif |
80 | #endif |