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| Rev 115 | Rev 125 | ||
|---|---|---|---|
| Line 52... | Line 52... | ||
| 52 | 52 | ||
| 53 | static spinlock_t framelock; |
53 | static spinlock_t framelock; |
| 54 | 54 | ||
| 55 | void frame_init(void) |
55 | void frame_init(void) |
| 56 | { |
56 | { |
| 57 | if (config.cpu_active == 1) { |
57 | if (config.cpu_active == 1) { |
| 58 | 58 | ||
| 59 | /* |
59 | /* |
| 60 | * The bootstrap processor will allocate all necessary memory for frame allocation. |
60 | * The bootstrap processor will allocate all necessary memory for frame allocation. |
| 61 | */ |
61 | */ |
| 62 | 62 | ||
| 63 | frames = config.memory_size / FRAME_SIZE; |
63 | frames = config.memory_size / FRAME_SIZE; |
| 64 | frame_bitmap_octets = frames / 8 + (frames % 8 > 0); |
64 | frame_bitmap_octets = frames / 8 + (frames % 8 > 0); |
| 65 | frame_bitmap = (__u8 *) malloc(frame_bitmap_octets); |
65 | frame_bitmap = (__u8 *) malloc(frame_bitmap_octets); |
| 66 | if (!frame_bitmap) |
66 | if (!frame_bitmap) |
| 67 | panic("malloc/frame_bitmap\n"); |
67 | panic("malloc/frame_bitmap\n"); |
| 68 | 68 | ||
| 69 | /* |
69 | /* |
| 70 | * Mark all frames free. |
70 | * Mark all frames free. |
| 71 | */ |
71 | */ |
| 72 | memsetb((__address) frame_bitmap, frame_bitmap_octets, 0); |
72 | memsetb((__address) frame_bitmap, frame_bitmap_octets, 0); |
| 73 | frames_free = frames; |
73 | frames_free = frames; |
| 74 | } |
74 | } |
| 75 | 75 | ||
| 76 | /* |
76 | /* |
| 77 | * No frame allocations/reservations prior this point. |
77 | * No frame allocations/reservations prior this point. |
| 78 | */ |
78 | */ |
| 79 | 79 | ||
| 80 | frame_arch_init(); |
80 | frame_arch_init(); |
| 81 | 81 | ||
| 82 | if (config.cpu_active == 1) { |
82 | if (config.cpu_active == 1) { |
| 83 | /* |
83 | /* |
| 84 | * Create the memory address space map. Marked frames and frame |
84 | * Create the memory address space map. Marked frames and frame |
| 85 | * regions cannot be used for allocation. |
85 | * regions cannot be used for allocation. |
| 86 | */ |
86 | */ |
| 87 | frame_region_not_free(config.base, config.base + config.kernel_size); |
87 | frame_region_not_free(config.base, config.base + config.kernel_size); |
| 88 | } |
88 | } |
| 89 | } |
89 | } |
| 90 | 90 | ||
| 91 | /* |
91 | /* |