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| 44 | struct ttm_bo_device; |
44 | struct ttm_bo_device; |
| Line 45... | Line -... | ||
| 45 | - | ||
| 46 | struct drm_mm_node; |
45 | |
| 47 | 46 | struct drm_mm_node; |
|
| 48 | 47 | ||
| 49 | /** |
48 | /** |
| 50 | * struct ttm_placement |
49 | * struct ttm_place |
| - | 50 | * |
|
| - | 51 | * @fpfn: first valid page frame number to put the object |
|
| - | 52 | * @lpfn: last valid page frame number to put the object |
|
| - | 53 | * @flags: memory domain and caching flags for the object |
|
| - | 54 | * |
|
| - | 55 | * Structure indicating a possible place to put an object. |
|
| - | 56 | */ |
|
| - | 57 | struct ttm_place { |
|
| - | 58 | unsigned fpfn; |
|
| - | 59 | unsigned lpfn; |
|
| - | 60 | uint32_t flags; |
|
| - | 61 | }; |
|
| - | 62 | ||
| 51 | * |
63 | /** |
| 52 | * @fpfn: first valid page frame number to put the object |
64 | * struct ttm_placement |
| 53 | * @lpfn: last valid page frame number to put the object |
65 | * |
| 54 | * @num_placement: number of preferred placements |
66 | * @num_placement: number of preferred placements |
| 55 | * @placement: preferred placements |
67 | * @placement: preferred placements |
| 56 | * @num_busy_placement: number of preferred placements when need to evict buffer |
68 | * @num_busy_placement: number of preferred placements when need to evict buffer |
| 57 | * @busy_placement: preferred placements when need to evict buffer |
69 | * @busy_placement: preferred placements when need to evict buffer |
| 58 | * |
70 | * |
| 59 | * Structure indicating the placement you request for an object. |
- | |
| 60 | */ |
- | |
| 61 | struct ttm_placement { |
71 | * Structure indicating the placement you request for an object. |
| 62 | unsigned fpfn; |
72 | */ |
| 63 | unsigned lpfn; |
73 | struct ttm_placement { |
| 64 | unsigned num_placement; |
74 | unsigned num_placement; |
| 65 | const uint32_t *placement; |
75 | const struct ttm_place *placement; |
| Line 66... | Line 76... | ||
| 66 | unsigned num_busy_placement; |
76 | unsigned num_busy_placement; |
| 67 | const uint32_t *busy_placement; |
77 | const struct ttm_place *busy_placement; |
| 68 | }; |
78 | }; |
| Line 161... | Line 171... | ||
| 161 | * @evicted: Whether the object was evicted without user-space knowing. |
171 | * @evicted: Whether the object was evicted without user-space knowing. |
| 162 | * @cpu_writes: For synchronization. Number of cpu writers. |
172 | * @cpu_writes: For synchronization. Number of cpu writers. |
| 163 | * @lru: List head for the lru list. |
173 | * @lru: List head for the lru list. |
| 164 | * @ddestroy: List head for the delayed destroy list. |
174 | * @ddestroy: List head for the delayed destroy list. |
| 165 | * @swap: List head for swap LRU list. |
175 | * @swap: List head for swap LRU list. |
| 166 | * @sync_obj: Pointer to a synchronization object. |
- | |
| 167 | * @priv_flags: Flags describing buffer object internal state. |
176 | * @priv_flags: Flags describing buffer object internal state. |
| 168 | * @vma_node: Address space manager node. |
177 | * @vma_node: Address space manager node. |
| 169 | * @offset: The current GPU offset, which can have different meanings |
178 | * @offset: The current GPU offset, which can have different meanings |
| 170 | * depending on the memory type. For SYSTEM type memory, it should be 0. |
179 | * depending on the memory type. For SYSTEM type memory, it should be 0. |
| 171 | * @cur_placement: Hint of current placement. |
180 | * @cur_placement: Hint of current placement. |
| Line 225... | Line 234... | ||
| 225 | struct list_head ddestroy; |
234 | struct list_head ddestroy; |
| 226 | struct list_head swap; |
235 | struct list_head swap; |
| 227 | struct list_head io_reserve_lru; |
236 | struct list_head io_reserve_lru; |
| Line 228... | Line 237... | ||
| 228 | 237 | ||
| 229 | /** |
238 | /** |
| 230 | * Members protected by struct buffer_object_device::fence_lock |
- | |
| 231 | * In addition, setting sync_obj to anything else |
- | |
| 232 | * than NULL requires bo::reserved to be held. This allows for |
- | |
| 233 | * checking NULL while reserved but not holding the mentioned lock. |
239 | * Members protected by a bo reservation. |
| Line 234... | Line -... | ||
| 234 | */ |
- | |
| 235 | 240 | */ |
|
| Line 236... | Line 241... | ||
| 236 | void *sync_obj; |
241 | |
| Line 237... | Line 242... | ||
| 237 | unsigned long priv_flags; |
242 | unsigned long priv_flags; |
| Line 453... | Line 458... | ||
| 453 | * pinned in physical memory. If this behaviour is not desired, this member |
458 | * pinned in physical memory. If this behaviour is not desired, this member |
| 454 | * holds a pointer to a persistent shmem object. Typically, this would |
459 | * holds a pointer to a persistent shmem object. Typically, this would |
| 455 | * point to the shmem object backing a GEM object if TTM is used to back a |
460 | * point to the shmem object backing a GEM object if TTM is used to back a |
| 456 | * GEM user interface. |
461 | * GEM user interface. |
| 457 | * @acc_size: Accounted size for this object. |
462 | * @acc_size: Accounted size for this object. |
| - | 463 | * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one. |
|
| 458 | * @destroy: Destroy function. Use NULL for kfree(). |
464 | * @destroy: Destroy function. Use NULL for kfree(). |
| 459 | * |
465 | * |
| 460 | * This function initializes a pre-allocated struct ttm_buffer_object. |
466 | * This function initializes a pre-allocated struct ttm_buffer_object. |
| 461 | * As this object may be part of a larger structure, this function, |
467 | * As this object may be part of a larger structure, this function, |
| 462 | * together with the @destroy function, |
468 | * together with the @destroy function, |
| Line 480... | Line 486... | ||
| 480 | uint32_t page_alignment, |
486 | uint32_t page_alignment, |
| 481 | bool interrubtible, |
487 | bool interrubtible, |
| 482 | struct file *persistent_swap_storage, |
488 | struct file *persistent_swap_storage, |
| 483 | size_t acc_size, |
489 | size_t acc_size, |
| 484 | struct sg_table *sg, |
490 | struct sg_table *sg, |
| - | 491 | struct reservation_object *resv, |
|
| 485 | void (*destroy) (struct ttm_buffer_object *)); |
492 | void (*destroy) (struct ttm_buffer_object *)); |
| Line 486... | Line 493... | ||
| 486 | 493 | ||
| 487 | /** |
494 | /** |
| 488 | * ttm_bo_create |
495 | * ttm_bo_create |
| Line 517... | Line 524... | ||
| 517 | bool interruptible, |
524 | bool interruptible, |
| 518 | struct file *persistent_swap_storage, |
525 | struct file *persistent_swap_storage, |
| 519 | struct ttm_buffer_object **p_bo); |
526 | struct ttm_buffer_object **p_bo); |
| Line 520... | Line 527... | ||
| 520 | 527 | ||
| 521 | /** |
- | |
| 522 | * ttm_bo_check_placement |
- | |
| 523 | * |
- | |
| 524 | * @bo: the buffer object. |
- | |
| 525 | * @placement: placements |
- | |
| 526 | * |
- | |
| 527 | * Performs minimal validity checking on an intended change of |
- | |
| 528 | * placement flags. |
- | |
| 529 | * Returns |
- | |
| 530 | * -EINVAL: Intended change is invalid or not allowed. |
- | |
| 531 | */ |
- | |
| 532 | extern int ttm_bo_check_placement(struct ttm_buffer_object *bo, |
- | |
| 533 | struct ttm_placement *placement); |
- | |
| 534 | - | ||
| 535 | /** |
528 | /** |
| 536 | * ttm_bo_init_mm |
529 | * ttm_bo_init_mm |
| 537 | * |
530 | * |
| 538 | * @bdev: Pointer to a ttm_bo_device struct. |
531 | * @bdev: Pointer to a ttm_bo_device struct. |
| 539 | * @mem_type: The memory type. |
532 | * @mem_type: The memory type. |