Rev 686 | Rev 701 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 686 | Rev 689 | ||
---|---|---|---|
Line 81... | Line 81... | ||
81 | * @param flags Flags for host zone selection and address processing. |
81 | * @param flags Flags for host zone selection and address processing. |
82 | * @param order Allocate exactly 2^order frames. |
82 | * @param order Allocate exactly 2^order frames. |
83 | * |
83 | * |
84 | * @return Allocated frame. |
84 | * @return Allocated frame. |
85 | */ |
85 | */ |
86 | __address frame_alloc(int flags, __u8 order) |
86 | __address frame_alloc(int flags, __u8 order, int * status) |
87 | { |
87 | { |
88 | ipl_t ipl; |
88 | ipl_t ipl; |
89 | link_t *cur, *tmp; |
89 | link_t *cur, *tmp; |
90 | zone_t *z; |
90 | zone_t *z; |
91 | zone_t *zone = NULL; |
91 | zone_t *zone = NULL; |
Line 115... | Line 115... | ||
115 | 115 | ||
116 | if (!zone) { |
116 | if (!zone) { |
117 | if (flags & FRAME_PANIC) |
117 | if (flags & FRAME_PANIC) |
118 | panic("Can't allocate frame.\n"); |
118 | panic("Can't allocate frame.\n"); |
119 | 119 | ||
- | 120 | ||
- | 121 | ||
120 | /* |
122 | /* |
121 | * TODO: Sleep until frames are available again. |
123 | * TODO: Sleep until frames are available again. |
122 | */ |
124 | */ |
123 | spinlock_unlock(&zone_head_lock); |
125 | spinlock_unlock(&zone_head_lock); |
124 | interrupts_restore(ipl); |
126 | interrupts_restore(ipl); |
125 | 127 | ||
- | 128 | if (flags & FRAME_NON_BLOCKING) { |
|
- | 129 | ASSERT(status != NULL); |
|
- | 130 | *status = FRAME_NO_MEMORY; |
|
- | 131 | return NULL; |
|
- | 132 | } |
|
- | 133 | ||
126 | panic("Sleep not implemented.\n"); |
134 | panic("Sleep not implemented.\n"); |
127 | goto loop; |
135 | goto loop; |
128 | } |
136 | } |
129 | 137 | ||
130 | 138 | ||
Line 149... | Line 157... | ||
149 | 157 | ||
150 | 158 | ||
151 | if (flags & FRAME_KA) |
159 | if (flags & FRAME_KA) |
152 | v = PA2KA(v); |
160 | v = PA2KA(v); |
153 | 161 | ||
- | 162 | if (flags & FRAME_NON_BLOCKING) { |
|
- | 163 | ASSERT(status != NULL); |
|
- | 164 | *status = FRAME_OK; |
|
- | 165 | } |
|
- | 166 | ||
154 | return v; |
167 | return v; |
155 | } |
168 | } |
156 | 169 | ||
157 | /** Free a frame. |
170 | /** Free a frame. |
158 | * |
171 | * |