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| Rev 3262 | Rev 4065 | ||
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| Line 42... | Line 42... | ||
| 42 | 42 | ||
| Line 43... | Line 43... | ||
| 43 | struct ttm_bo_device; |
43 | struct ttm_bo_device; |
| Line -... | Line 44... | ||
| - | 44 | ||
| - | 45 | struct drm_mm_node; |
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| - | 46 | ||
| - | 47 | struct reservation_object { |
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| Line 44... | Line 48... | ||
| 44 | 48 | struct mutex lock; |
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| 45 | struct drm_mm_node; |
49 | }; |
| 46 | 50 | ||
| 47 | 51 | ||
| Line 151... | Line 155... | ||
| 151 | * @list_kref: List reference count of this buffer object. This member is |
155 | * @list_kref: List reference count of this buffer object. This member is |
| 152 | * used to avoid destruction while the buffer object is still on a list. |
156 | * used to avoid destruction while the buffer object is still on a list. |
| 153 | * Lru lists may keep one refcount, the delayed delete list, and kref != 0 |
157 | * Lru lists may keep one refcount, the delayed delete list, and kref != 0 |
| 154 | * keeps one refcount. When this refcount reaches zero, |
158 | * keeps one refcount. When this refcount reaches zero, |
| 155 | * the object is destroyed. |
159 | * the object is destroyed. |
| 156 | * @event_queue: Queue for processes waiting on buffer object status change. |
- | |
| 157 | * @mem: structure describing current placement. |
160 | * @mem: structure describing current placement. |
| 158 | * @persistent_swap_storage: Usually the swap storage is deleted for buffers |
161 | * @persistent_swap_storage: Usually the swap storage is deleted for buffers |
| 159 | * pinned in physical memory. If this behaviour is not desired, this member |
162 | * pinned in physical memory. If this behaviour is not desired, this member |
| 160 | * holds a pointer to a persistent shmem object. |
163 | * holds a pointer to a persistent shmem object. |
| 161 | * @ttm: TTM structure holding system pages. |
164 | * @ttm: TTM structure holding system pages. |
| 162 | * @evicted: Whether the object was evicted without user-space knowing. |
165 | * @evicted: Whether the object was evicted without user-space knowing. |
| 163 | * @cpu_writes: For synchronization. Number of cpu writers. |
166 | * @cpu_writes: For synchronization. Number of cpu writers. |
| 164 | * @lru: List head for the lru list. |
167 | * @lru: List head for the lru list. |
| 165 | * @ddestroy: List head for the delayed destroy list. |
168 | * @ddestroy: List head for the delayed destroy list. |
| 166 | * @swap: List head for swap LRU list. |
169 | * @swap: List head for swap LRU list. |
| 167 | * @val_seq: Sequence of the validation holding the @reserved lock. |
- | |
| 168 | * Used to avoid starvation when many processes compete to validate the |
- | |
| 169 | * buffer. This member is protected by the bo_device::lru_lock. |
- | |
| 170 | * @seq_valid: The value of @val_seq is valid. This value is protected by |
- | |
| 171 | * the bo_device::lru_lock. |
- | |
| 172 | * @reserved: Deadlock-free lock used for synchronization state transitions. |
- | |
| 173 | * @sync_obj: Pointer to a synchronization object. |
170 | * @sync_obj: Pointer to a synchronization object. |
| 174 | * @priv_flags: Flags describing buffer object internal state. |
171 | * @priv_flags: Flags describing buffer object internal state. |
| 175 | * @vm_rb: Rb node for the vm rb tree. |
172 | * @vm_rb: Rb node for the vm rb tree. |
| 176 | * @vm_node: Address space manager node. |
173 | * @vm_node: Address space manager node. |
| 177 | * @offset: The current GPU offset, which can have different meanings |
174 | * @offset: The current GPU offset, which can have different meanings |
| Line 207... | Line 204... | ||
| 207 | * Members not needing protection. |
204 | * Members not needing protection. |
| 208 | */ |
205 | */ |
| Line 209... | Line 206... | ||
| 209 | 206 | ||
| 210 | struct kref kref; |
207 | struct kref kref; |
| 211 | struct kref list_kref; |
- | |
| Line 212... | Line 208... | ||
| 212 | wait_queue_head_t event_queue; |
208 | struct kref list_kref; |
| 213 | 209 | ||
| 214 | /** |
210 | /** |
| Line 215... | Line 211... | ||
| 215 | * Members protected by the bo::reserved lock. |
211 | * Members protected by the bo::resv::reserved lock. |
| 216 | */ |
212 | */ |
| 217 | 213 | ||
| Line 232... | Line 228... | ||
| 232 | 228 | ||
| 233 | struct list_head lru; |
229 | struct list_head lru; |
| 234 | struct list_head ddestroy; |
230 | struct list_head ddestroy; |
| 235 | struct list_head swap; |
231 | struct list_head swap; |
| 236 | struct list_head io_reserve_lru; |
- | |
| 237 | uint32_t val_seq; |
- | |
| 238 | bool seq_valid; |
- | |
| 239 | - | ||
| 240 | /** |
- | |
| 241 | * Members protected by the bdev::lru_lock |
- | |
| 242 | * only when written to. |
- | |
| 243 | */ |
- | |
| 244 | - | ||
| Line 245... | Line 232... | ||
| 245 | atomic_t reserved; |
232 | struct list_head io_reserve_lru; |
| 246 | 233 | ||
| 247 | /** |
234 | /** |
| 248 | * Members protected by struct buffer_object_device::fence_lock |
235 | * Members protected by struct buffer_object_device::fence_lock |
| Line 270... | Line 257... | ||
| 270 | 257 | ||
| 271 | unsigned long offset; |
258 | unsigned long offset; |
| Line 272... | Line 259... | ||
| 272 | uint32_t cur_placement; |
259 | uint32_t cur_placement; |
| - | 260 | ||
| - | 261 | struct sg_table *sg; |
|
| - | 262 | ||
| 273 | 263 | struct reservation_object *resv; |
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| Line 274... | Line 264... | ||
| 274 | struct sg_table *sg; |
264 | struct reservation_object ttm_resv; |
| 275 | }; |
265 | }; |
| 276 | 266 | ||
| Line 723... | Line 713... | ||
| 723 | const char __user *wbuf, char __user *rbuf, |
713 | const char __user *wbuf, char __user *rbuf, |
| 724 | size_t count, loff_t *f_pos, bool write); |
714 | size_t count, loff_t *f_pos, bool write); |
| Line 725... | Line 715... | ||
| 725 | 715 | ||
| Line 726... | Line -... | ||
| 726 | extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev); |
- | |
| 727 | - | ||
| 728 | /** |
- | |
| 729 | * ttm_bo_is_reserved - return an indication if a ttm buffer object is reserved |
- | |
| 730 | * |
- | |
| 731 | * @bo: The buffer object to check. |
- | |
| 732 | * |
- | |
| 733 | * This function returns an indication if a bo is reserved or not, and should |
- | |
| 734 | * only be used to print an error when it is not from incorrect api usage, since |
- | |
| 735 | * there's no guarantee that it is the caller that is holding the reservation. |
- | |
| 736 | */ |
- | |
| 737 | static inline bool ttm_bo_is_reserved(struct ttm_buffer_object *bo) |
- | |
| 738 | { |
- | |
| 739 | return atomic_read(&bo->reserved); |
- | |
| 740 | } |
716 | extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev); |